diff --git a/qtwebengine/src/3rdparty/chromium/chrome/installer/linux/BUILD.gn b/qtwebengine/src/3rdparty/chromium/chrome/installer/linux/BUILD.gn
index 9c92012ce..a4a5cd86d 100644
--- a/qtwebengine/src/3rdparty/chromium/chrome/installer/linux/BUILD.gn
+++ b/qtwebengine/src/3rdparty/chromium/chrome/installer/linux/BUILD.gn
@@ -65,8 +65,6 @@ packaging_files = packaging_files_binaries + [
                     "$root_out_dir/xdg-mime",
                     "$root_out_dir/xdg-settings",
                     "$root_out_dir/locales/en-US.pak",
-                    "$root_out_dir/MEIPreload/manifest.json",
-                    "$root_out_dir/MEIPreload/preloaded_data.pb",
                   ]
 
 action_foreach("calculate_deb_dependencies") {
@@ -331,7 +329,6 @@ group("installer_deps") {
     ":theme_files",
     "//chrome",
     "//chrome:packed_resources",
-    "//chrome/browser/resources/media/mei_preload:component",
     "//sandbox/linux:chrome_sandbox",
     "//third_party/crashpad/crashpad/handler:crashpad_handler",
   ]
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/features.gni b/qtwebengine/src/3rdparty/chromium/sandbox/features.gni
index 09280d35f..42514157f 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/features.gni
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/features.gni
@@ -11,6 +11,7 @@ import("//build/config/nacl/config.gni")
 use_seccomp_bpf = (is_linux || is_android) &&
                   (current_cpu == "x86" || current_cpu == "x64" ||
                    current_cpu == "arm" || current_cpu == "arm64" ||
-                   current_cpu == "mipsel" || current_cpu == "mips64el")
+                   current_cpu == "mipsel" || current_cpu == "mips64el" ||
+                   current_cpu == "ppc64")
 
 use_seccomp_bpf = use_seccomp_bpf || is_nacl_nonsfi
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/BUILD.gn b/qtwebengine/src/3rdparty/chromium/sandbox/linux/BUILD.gn
index c27351f9a..9141e1239 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/BUILD.gn
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/BUILD.gn
@@ -407,6 +407,8 @@ component("sandbox_services") {
 
 source_set("sandbox_services_headers") {
   sources = [
+    "system_headers/ppc64_linux_syscalls.h",
+    "system_headers/ppc64_linux_ucontext.h",
     "system_headers/arm64_linux_syscalls.h",
     "system_headers/arm_linux_syscalls.h",
     "system_headers/arm_linux_ucontext.h",
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/bpf_dsl/linux_syscall_ranges.h b/qtwebengine/src/3rdparty/chromium/sandbox/linux/bpf_dsl/linux_syscall_ranges.h
index 313511f22..0ca3a326f 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/bpf_dsl/linux_syscall_ranges.h
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/bpf_dsl/linux_syscall_ranges.h
@@ -56,6 +56,13 @@
 #define MAX_PUBLIC_SYSCALL __NR_syscalls
 #define MAX_SYSCALL MAX_PUBLIC_SYSCALL
 
+#elif defined(__powerpc64__)
+
+#include <asm/unistd.h>
+#define MIN_SYSCALL 0u
+#define MAX_PUBLIC_SYSCALL 386u
+#define MAX_SYSCALL MAX_PUBLIC_SYSCALL
+
 #else
 #error "Unsupported architecture"
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/bpf_dsl/seccomp_macros.h b/qtwebengine/src/3rdparty/chromium/sandbox/linux/bpf_dsl/seccomp_macros.h
index 1a407b952..a6aec544e 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/bpf_dsl/seccomp_macros.h
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/bpf_dsl/seccomp_macros.h
@@ -16,6 +16,9 @@
 #if defined(__mips__)
 // sys/user.h in eglibc misses size_t definition
 #include <stddef.h>
+#elif defined(__powerpc64__)
+// Manually define greg_t on ppc64
+typedef unsigned long long greg_t;
 #endif
 #endif
 
@@ -346,6 +349,51 @@ struct regs_struct {
 #define SECCOMP_PT_PARM4(_regs) (_regs).regs[3]
 #define SECCOMP_PT_PARM5(_regs) (_regs).regs[4]
 #define SECCOMP_PT_PARM6(_regs) (_regs).regs[5]
+
+#elif defined(__powerpc64__)
+#include <asm/ptrace.h>
+
+typedef struct pt_regs regs_struct;
+
+#ifdef ARCH_CPU_LITTLE_ENDIAN
+#define SECCOMP_ARCH AUDIT_ARCH_PPC64LE
+#else
+#define SECCOMP_ARCH AUDIT_ARCH_PPC64
+#endif
+
+#define SECCOMP_REG(_ctx, _reg) ((_ctx)->uc_mcontext.regs->gpr[_reg])
+
+#define SECCOMP_RESULT(_ctx) SECCOMP_REG(_ctx, 3)
+#define SECCOMP_SYSCALL(_ctx) SECCOMP_REG(_ctx, 0)
+#define SECCOMP_IP(_ctx) (_ctx)->uc_mcontext.regs->nip
+#define SECCOMP_PARM1(_ctx) SECCOMP_REG(_ctx, 3)
+#define SECCOMP_PARM2(_ctx) SECCOMP_REG(_ctx, 4)
+#define SECCOMP_PARM3(_ctx) SECCOMP_REG(_ctx, 5)
+#define SECCOMP_PARM4(_ctx) SECCOMP_REG(_ctx, 6)
+#define SECCOMP_PARM5(_ctx) SECCOMP_REG(_ctx, 7)
+#define SECCOMP_PARM6(_ctx) SECCOMP_REG(_ctx, 8)
+
+#define SECCOMP_NR_IDX (offsetof(struct arch_seccomp_data, nr))
+#define SECCOMP_ARCH_IDX (offsetof(struct arch_seccomp_data, arch))
+#define SECCOMP_IP_MSB_IDX \
+  (offsetof(struct arch_seccomp_data, instruction_pointer) + 4)
+#define SECCOMP_IP_LSB_IDX \
+  (offsetof(struct arch_seccomp_data, instruction_pointer) + 0)
+#define SECCOMP_ARG_MSB_IDX(nr) \
+  (offsetof(struct arch_seccomp_data, args) + 8 * (nr) + 4)
+#define SECCOMP_ARG_LSB_IDX(nr) \
+  (offsetof(struct arch_seccomp_data, args) + 8 * (nr) + 0)
+
+#define SECCOMP_PT_RESULT(_regs) (_regs).gpr[3]
+#define SECCOMP_PT_SYSCALL(_regs) (_regs).gpr[0]
+#define SECCOMP_PT_IP(_regs) (_regs).nip
+#define SECCOMP_PT_PARM1(_regs) (_regs).gpr[3]
+#define SECCOMP_PT_PARM2(_regs) (_regs).gpr[4]
+#define SECCOMP_PT_PARM3(_regs) (_regs).gpr[5]
+#define SECCOMP_PT_PARM4(_regs) (_regs).gpr[6]
+#define SECCOMP_PT_PARM5(_regs) (_regs).gpr[7]
+#define SECCOMP_PT_PARM6(_regs) (_regs).gpr[8]
+
 #else
 #error Unsupported target platform
 
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/baseline_policy.cc b/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/baseline_policy.cc
index 712f9699a..55f062817 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/baseline_policy.cc
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/baseline_policy.cc
@@ -88,7 +88,8 @@ bool IsBaselinePolicyWatched(int sysno) {
          SyscallSets::IsPrctl(sysno) ||
          SyscallSets::IsProcessGroupOrSession(sysno) ||
 #if defined(__i386__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
          SyscallSets::IsSocketCall(sysno) ||
 #endif
 #if defined(__arm__)
@@ -210,7 +211,7 @@ ResultExpr EvaluateSyscallImpl(int fs_denied_errno,
   }
 
 #if defined(__i386__) || defined(__x86_64__) || defined(__mips__) || \
-    defined(__aarch64__)
+    defined(__aarch64__) || defined(__powerpc64__)
   if (sysno == __NR_mmap)
     return RestrictMmapFlags();
 #endif
@@ -228,7 +229,7 @@ ResultExpr EvaluateSyscallImpl(int fs_denied_errno,
     return RestrictPrctl();
 
 #if defined(__x86_64__) || defined(__arm__) || defined(__mips__) || \
-    defined(__aarch64__)
+    defined(__aarch64__) || defined(__powerpc64__)
   if (sysno == __NR_socketpair) {
     // Only allow AF_UNIX, PF_UNIX. Crash if anything else is seen.
     static_assert(AF_UNIX == PF_UNIX,
@@ -268,7 +269,8 @@ ResultExpr EvaluateSyscallImpl(int fs_denied_errno,
   }
 
 #if defined(__i386__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
   if (SyscallSets::IsSocketCall(sysno))
     return RestrictSocketcallCommand();
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/baseline_policy_unittest.cc b/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/baseline_policy_unittest.cc
index fc36187c9..1affc9189 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/baseline_policy_unittest.cc
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/baseline_policy_unittest.cc
@@ -291,8 +291,10 @@ TEST_BASELINE_SIGSYS(__NR_timer_create)
 #if !defined(__aarch64__)
 TEST_BASELINE_SIGSYS(__NR_eventfd)
 TEST_BASELINE_SIGSYS(__NR_inotify_init)
+#if !defined(__powerpc64__)
 TEST_BASELINE_SIGSYS(__NR_vserver)
 #endif
+#endif
 
 #if defined(LIBC_GLIBC) && !defined(OS_CHROMEOS)
 BPF_TEST_C(BaselinePolicy, FutexEINVAL, BaselinePolicy) {
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc b/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc
index 002b07a25..f390f106a 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc
@@ -36,7 +36,8 @@
 #include <sys/ioctl.h>
 #include <sys/ptrace.h>
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS) && !defined(__arm__) && \
-    !defined(__aarch64__) && !defined(PTRACE_GET_THREAD_AREA)
+    !defined(__aarch64__) && !defined(PTRACE_GET_THREAD_AREA) && \
+    !defined(__powerpc64__)
 // Also include asm/ptrace-abi.h since ptrace.h in older libc (for instance
 // the one in Ubuntu 16.04 LTS) is missing PTRACE_GET_THREAD_AREA.
 // asm/ptrace-abi.h doesn't exist on arm32 and PTRACE_GET_THREAD_AREA isn't
@@ -45,6 +46,11 @@
 #endif
 #endif  // !OS_NACL_NONSFI
 
+// On PPC64, TCGETS is defined in terms of struct termios, so we must include termios.h
+#ifdef __powerpc64__
+#include <termios.h>
+#endif
+
 #if defined(OS_ANDROID)
 
 #if !defined(F_DUPFD_CLOEXEC)
@@ -107,6 +113,15 @@ inline bool IsArchitectureMips() {
 #endif
 }
 
+inline bool IsArchitecturePPC64() {
+#if defined(__powerpc64__)
+  return true;
+#else
+  return false;
+#endif
+}
+
+
 // Ubuntu's version of glibc has a race condition in sem_post that can cause
 // it to call futex(2) with bogus op arguments. To workaround this, we need
 // to allow those futex(2) calls to fail with EINVAL, instead of crashing the
@@ -259,6 +274,8 @@ ResultExpr RestrictFcntlCommands() {
   uint64_t kOLargeFileFlag = O_LARGEFILE;
   if (IsArchitectureX86_64() || IsArchitectureI386() || IsArchitectureMips())
     kOLargeFileFlag = 0100000;
+  else if (IsArchitecturePPC64())
+    kOLargeFileFlag = 0200000;
 
   const Arg<int> cmd(1);
   const Arg<long> long_arg(2);
@@ -273,14 +290,23 @@ ResultExpr RestrictFcntlCommands() {
               F_SETLKW,
               F_GETLK,
               F_DUPFD,
-              F_DUPFD_CLOEXEC),
-             Allow())
+              F_DUPFD_CLOEXEC
+#if defined(__powerpc64__)
+// On PPC64, F_SETLK, F_GETLK, F_SETLKW are defined as the 64-bit variants
+// but glibc will sometimes still use the 32-bit versions. Allow both.
+              ,
+              5, /* F_GETLK (32) */
+              6, /* F_SETLK (32) */
+              7  /* F_SETLKW (32) */
+#endif
+              ),
+            Allow())
       .Case(F_SETFL,
             If((long_arg & ~kAllowedMask) == 0, Allow()).Else(CrashSIGSYS()))
       .Default(CrashSIGSYS());
 }
 
-#if defined(__i386__) || defined(__mips__)
+#if defined(__i386__) || defined(__mips__) || defined(__powerpc64__)
 ResultExpr RestrictSocketcallCommand() {
   // Unfortunately, we are unable to restrict the first parameter to
   // socketpair(2). Whilst initially sounding bad, it's noteworthy that very
@@ -429,7 +455,7 @@ ResultExpr RestrictPrlimitToGetrlimit(pid_t target_pid) {
 ResultExpr RestrictPtrace() {
   const Arg<int> request(0);
   return Switch(request).CASES((
-#if !defined(__aarch64__)
+#if !defined(__aarch64__) && !defined(__powerpc64__)
         PTRACE_GETREGS,
         PTRACE_GETFPREGS,
 #if defined(TRACE_GET_THREAD_AREA)
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.h b/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.h
index ba4289f05..9a4d5ab2d 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.h
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.h
@@ -48,7 +48,7 @@ SANDBOX_EXPORT bpf_dsl::ResultExpr RestrictMprotectFlags();
 // O_NONBLOCK | O_SYNC | O_LARGEFILE | O_CLOEXEC | O_NOATIME.
 SANDBOX_EXPORT bpf_dsl::ResultExpr RestrictFcntlCommands();
 
-#if defined(__i386__) || defined(__mips__)
+#if defined(__i386__) || defined(__mips__) || defined(__powerpc64__)
 // Restrict socketcall(2) to only allow socketpair(2), send(2), recv(2),
 // sendto(2), recvfrom(2), shutdown(2), sendmsg(2) and recvmsg(2).
 SANDBOX_EXPORT bpf_dsl::ResultExpr RestrictSocketcallCommand();
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc b/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc
index e16223a5e..8f37dd7dc 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc
@@ -29,7 +29,8 @@ bool SyscallSets::IsAllowedGettime(int sysno) {
   switch (sysno) {
     case __NR_gettimeofday:
 #if defined(__i386__) || defined(__x86_64__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_time:
 #endif
       return true;
@@ -41,12 +42,14 @@ bool SyscallSets::IsAllowedGettime(int sysno) {
     case __NR_clock_nanosleep:  // Parameters filtered by RestrictClockID().
     case __NR_clock_settime:    // Privileged.
 #if defined(__i386__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_ftime:  // Obsolete.
 #endif
     case __NR_settimeofday:  // Privileged.
 #if defined(__i386__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_stime:
 #endif
     default:
@@ -112,7 +115,7 @@ bool SyscallSets::IsFileSystem(int sysno) {
     case __NR_faccessat:  // EPERM not a valid errno.
     case __NR_fchmodat:
     case __NR_fchownat:  // Should be called chownat ?
-#if defined(__x86_64__) || defined(__aarch64__)
+#if defined(__x86_64__) || defined(__aarch64__) || defined(__powerpc64__)
     case __NR_newfstatat:  // fstatat(). EPERM not a valid errno.
 #elif defined(__i386__) || defined(__arm__) || \
     (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
@@ -131,7 +134,7 @@ bool SyscallSets::IsFileSystem(int sysno) {
     case __NR_memfd_create:
     case __NR_mkdirat:
     case __NR_mknodat:
-#if defined(__i386__)
+#if defined(__i386__) || defined(__powerpc64__)
     case __NR_oldlstat:
     case __NR_oldstat:
 #endif
@@ -145,7 +148,8 @@ bool SyscallSets::IsFileSystem(int sysno) {
 #endif
     case __NR_statfs:  // EPERM not a valid errno.
 #if defined(__i386__) || defined(__arm__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_statfs64:
 #endif
     case __NR_symlinkat:
@@ -155,7 +159,8 @@ bool SyscallSets::IsFileSystem(int sysno) {
     case __NR_truncate64:
 #endif
     case __NR_unlinkat:
-#if defined(__i386__) || defined(__x86_64__) || defined(__mips__)
+#if defined(__i386__) || defined(__x86_64__) || defined(__mips__) || \
+    defined(__powerpc64__)
     case __NR_utime:
 #endif
     case __NR_utimensat:  // New.
@@ -174,7 +179,8 @@ bool SyscallSets::IsAllowedFileSystemAccessViaFd(int sysno) {
 #endif
       return true;
 // TODO(jln): these should be denied gracefully as well (moved below).
-#if defined(__i386__) || defined(__x86_64__) || defined(__mips__)
+#if defined(__i386__) || defined(__x86_64__) || defined(__mips__) || \
+    defined(__powerpc64__)
     case __NR_fadvise64:  // EPERM not a valid errno.
 #endif
 #if defined(__i386__)
@@ -187,11 +193,12 @@ bool SyscallSets::IsAllowedFileSystemAccessViaFd(int sysno) {
     case __NR_flock:      // EPERM not a valid errno.
     case __NR_fstatfs:    // Give information about the whole filesystem.
 #if defined(__i386__) || defined(__arm__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_fstatfs64:
 #endif
     case __NR_fsync:  // EPERM not a valid errno.
-#if defined(__i386__)
+#if defined(__i386__) || defined(__powerpc64__)
     case __NR_oldfstat:
 #endif
 #if defined(__i386__) || defined(__x86_64__) || defined(__mips__) || \
@@ -199,6 +206,8 @@ bool SyscallSets::IsAllowedFileSystemAccessViaFd(int sysno) {
     case __NR_sync_file_range:  // EPERM not a valid errno.
 #elif defined(__arm__)
     case __NR_arm_sync_file_range:  // EPERM not a valid errno.
+#elif defined(__powerpc64__)
+    case __NR_sync_file_range2: // EPERM not a valid errno.
 #endif
     default:
       return false;
@@ -224,7 +233,8 @@ bool SyscallSets::IsDeniedFileSystemAccessViaFd(int sysno) {
 #endif
     case __NR_getdents64:  // EPERM not a valid errno.
 #if defined(__i386__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_readdir:
 #endif
       return true;
@@ -265,7 +275,7 @@ bool SyscallSets::IsGetSimpleId(int sysno) {
 bool SyscallSets::IsProcessPrivilegeChange(int sysno) {
   switch (sysno) {
     case __NR_capset:
-#if defined(__i386__) || defined(__x86_64__)
+#if defined(__i386__) || defined(__x86_64__) || defined(__powerpc64__)
     case __NR_ioperm:  // Intel privilege.
     case __NR_iopl:    // Intel privilege.
 #endif
@@ -316,7 +326,8 @@ bool SyscallSets::IsAllowedSignalHandling(int sysno) {
     case __NR_rt_sigreturn:
     case __NR_rt_sigtimedwait:
 #if defined(__i386__) || defined(__arm__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_sigaction:
     case __NR_sigprocmask:
     case __NR_sigreturn:
@@ -332,7 +343,8 @@ bool SyscallSets::IsAllowedSignalHandling(int sysno) {
 #endif
     case __NR_signalfd4:
 #if defined(__i386__) || defined(__arm__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_sigpending:
     case __NR_sigsuspend:
 #endif
@@ -356,7 +368,7 @@ bool SyscallSets::IsAllowedOperationOnFd(int sysno) {
 #endif
     case __NR_dup3:
 #if defined(__x86_64__) || defined(__arm__) || defined(__mips__) || \
-    defined(__aarch64__)
+    defined(__aarch64__) || defined(__powerpc64__)
     case __NR_shutdown:
 #endif
       return true;
@@ -390,7 +402,7 @@ bool SyscallSets::IsAllowedProcessStartOrDeath(int sysno) {
     case __NR_membarrier:
     case __NR_wait4:
     case __NR_waitid:
-#if defined(__i386__)
+#if defined(__i386__) || defined(__powerpc64__)
     case __NR_waitpid:
 #endif
 #if !defined(__GLIBC__)
@@ -412,7 +424,7 @@ bool SyscallSets::IsAllowedProcessStartOrDeath(int sysno) {
     case __NR_set_tid_address:
 #endif
     case __NR_unshare:
-#if !defined(__mips__) && !defined(__aarch64__)
+#if !defined(__mips__) && !defined(__aarch64__) || defined(__powerpc64__)
     case __NR_vfork:
 #endif
     default:
@@ -461,7 +473,7 @@ bool SyscallSets::IsAllowedGetOrModifySocket(int sysno) {
       return true;
     default:
 #if defined(__x86_64__) || defined(__arm__) || defined(__mips__) || \
-    defined(__aarch64__)
+    defined(__aarch64__) || defined(__powerpc64__)
     case __NR_socketpair:  // We will want to inspect its argument.
 #endif
       return false;
@@ -471,7 +483,7 @@ bool SyscallSets::IsAllowedGetOrModifySocket(int sysno) {
 bool SyscallSets::IsDeniedGetOrModifySocket(int sysno) {
   switch (sysno) {
 #if defined(__x86_64__) || defined(__arm__) || defined(__mips__) || \
-    defined(__aarch64__)
+    defined(__aarch64__) || defined(__powerpc64__)
     case __NR_accept:
     case __NR_accept4:
     case __NR_bind:
@@ -486,7 +498,8 @@ bool SyscallSets::IsDeniedGetOrModifySocket(int sysno) {
 }
 
 #if defined(__i386__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
 // Big multiplexing system call for sockets.
 bool SyscallSets::IsSocketCall(int sysno) {
   switch (sysno) {
@@ -500,7 +513,8 @@ bool SyscallSets::IsSocketCall(int sysno) {
 }
 #endif
 
-#if defined(__x86_64__) || defined(__arm__) || defined(__mips__)
+#if defined(__x86_64__) || defined(__arm__) || defined(__mips__) || \
+    defined(__powerpc64__)
 bool SyscallSets::IsNetworkSocketInformation(int sysno) {
   switch (sysno) {
     case __NR_getpeername:
@@ -528,7 +542,7 @@ bool SyscallSets::IsAllowedAddressSpaceAccess(int sysno) {
     case __NR_mincore:
     case __NR_mlockall:
 #if defined(__i386__) || defined(__x86_64__) || defined(__mips__) || \
-    defined(__aarch64__)
+    defined(__aarch64__) || defined(__powerpc64__)
     case __NR_mmap:
 #endif
 #if defined(__i386__) || defined(__arm__) || \
@@ -560,7 +574,8 @@ bool SyscallSets::IsAllowedGeneralIo(int sysno) {
   switch (sysno) {
     case __NR_lseek:
 #if defined(__i386__) || defined(__arm__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR__llseek:
 #endif
 #if !defined(__aarch64__)
@@ -572,26 +587,28 @@ bool SyscallSets::IsAllowedGeneralIo(int sysno) {
     case __NR_readv:
     case __NR_pread64:
 #if defined(__arm__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_recv:
 #endif
 #if defined(__x86_64__) || defined(__arm__) || defined(__mips__) || \
-    defined(__aarch64__)
+    defined(__aarch64__) || defined(__powerpc64__)
     case __NR_recvfrom:  // Could specify source.
     case __NR_recvmsg:   // Could specify source.
 #endif
-#if defined(__i386__) || defined(__x86_64__)
+#if defined(__i386__) || defined(__x86_64__) || defined(__powerpc64__)
     case __NR_select:
 #endif
-#if defined(__i386__) || defined(__arm__) || defined(__mips__)
+#if defined(__i386__) || defined(__arm__) || defined(__mips__) || defined(__powerpc64__)
     case __NR__newselect:
 #endif
 #if defined(__arm__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_send:
 #endif
 #if defined(__x86_64__) || defined(__arm__) || defined(__mips__) || \
-    defined(__aarch64__)
+    defined(__aarch64__) || defined(__powerpc64__)
     case __NR_sendmsg:  // Could specify destination.
     case __NR_sendto:   // Could specify destination.
 #endif
@@ -648,7 +665,8 @@ bool SyscallSets::IsAllowedBasicScheduler(int sysno) {
       return true;
     case __NR_getpriority:
 #if defined(__i386__) || defined(__arm__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_nice:
 #endif
     case __NR_setpriority:
@@ -660,7 +678,8 @@ bool SyscallSets::IsAllowedBasicScheduler(int sysno) {
 bool SyscallSets::IsAdminOperation(int sysno) {
   switch (sysno) {
 #if defined(__i386__) || defined(__arm__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_bdflush:
 #endif
     case __NR_kexec_load:
@@ -676,7 +695,8 @@ bool SyscallSets::IsAdminOperation(int sysno) {
 
 bool SyscallSets::IsKernelModule(int sysno) {
   switch (sysno) {
-#if defined(__i386__) || defined(__x86_64__) || defined(__mips__)
+#if defined(__i386__) || defined(__x86_64__) || defined(__mips__) || \
+    defined(__powerpc64__)
     case __NR_create_module:
     case __NR_get_kernel_syms:  // Should ENOSYS.
     case __NR_query_module:
@@ -709,7 +729,8 @@ bool SyscallSets::IsFsControl(int sysno) {
     case __NR_swapoff:
     case __NR_swapon:
 #if defined(__i386__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_umount:
 #endif
     case __NR_umount2:
@@ -725,7 +746,7 @@ bool SyscallSets::IsNuma(int sysno) {
     case __NR_getcpu:
     case __NR_mbind:
 #if defined(__i386__) || defined(__x86_64__) || defined(__mips__) || \
-    defined(__aarch64__)
+    defined(__aarch64__) || defined(__powerpc64__)
     case __NR_migrate_pages:
 #endif
     case __NR_move_pages:
@@ -754,14 +775,15 @@ bool SyscallSets::IsGlobalProcessEnvironment(int sysno) {
   switch (sysno) {
     case __NR_acct:  // Privileged.
 #if defined(__i386__) || defined(__x86_64__) || defined(__mips__) || \
-    defined(__aarch64__)
+    defined(__aarch64__) || defined(__powerpc64__)
     case __NR_getrlimit:
 #endif
-#if defined(__i386__) || defined(__arm__)
+#if defined(__i386__) || defined(__arm__) || defined(__powerpc64__)
     case __NR_ugetrlimit:
 #endif
 #if defined(__i386__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_ulimit:
 #endif
     case __NR_getrusage:
@@ -795,7 +817,7 @@ bool SyscallSets::IsGlobalSystemStatus(int sysno) {
 #endif
     case __NR_sysinfo:
     case __NR_uname:
-#if defined(__i386__)
+#if defined(__i386__) || defined(__powerpc64__)
     case __NR_olduname:
     case __NR_oldolduname:
 #endif
@@ -890,7 +912,8 @@ bool SyscallSets::IsSystemVMessageQueue(int sysno) {
 #endif
 
 #if defined(__i386__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
 // Big system V multiplexing system call.
 bool SyscallSets::IsSystemVIpc(int sysno) {
   switch (sysno) {
@@ -910,7 +933,8 @@ bool SyscallSets::IsAnySystemV(int sysno) {
   return IsSystemVMessageQueue(sysno) || IsSystemVSemaphores(sysno) ||
          IsSystemVSharedMemory(sysno);
 #elif defined(__i386__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
   return IsSystemVIpc(sysno);
 #endif
 }
@@ -963,7 +987,8 @@ bool SyscallSets::IsFaNotify(int sysno) {
 bool SyscallSets::IsTimer(int sysno) {
   switch (sysno) {
     case __NR_getitimer:
-#if defined(__i386__) || defined(__x86_64__) || defined(__mips__)
+#if defined(__i386__) || defined(__x86_64__) || defined(__mips__) || \
+    defined(__powerpc64__)
     case __NR_alarm:
 #endif
     case __NR_setitimer:
@@ -1022,18 +1047,22 @@ bool SyscallSets::IsMisc(int sysno) {
     case __NR_syncfs:
     case __NR_vhangup:
 // The system calls below are not implemented.
-#if defined(__i386__) || defined(__x86_64__) || defined(__mips__)
+#if defined(__i386__) || defined(__x86_64__) || defined(__mips__) || \
+    defined(__powerpc64__)
     case __NR_afs_syscall:
 #endif
 #if defined(__i386__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_break:
 #endif
-#if defined(__i386__) || defined(__x86_64__) || defined(__mips__)
+#if defined(__i386__) || defined(__x86_64__) || defined(__mips__) || \
+    defined(__powerpc64__)
     case __NR_getpmsg:
 #endif
 #if defined(__i386__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_gtty:
     case __NR_idle:
     case __NR_lock:
@@ -1041,20 +1070,22 @@ bool SyscallSets::IsMisc(int sysno) {
     case __NR_prof:
     case __NR_profil:
 #endif
-#if defined(__i386__) || defined(__x86_64__) || defined(__mips__)
+#if defined(__i386__) || defined(__x86_64__) || defined(__mips__) || \
+    defined(__powerpc64__)
     case __NR_putpmsg:
 #endif
 #if defined(__x86_64__)
     case __NR_security:
 #endif
 #if defined(__i386__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
     case __NR_stty:
 #endif
-#if defined(__x86_64__)
+#if defined(__x86_64__) || defined(__powerpc64__)
     case __NR_tuxcall:
 #endif
-#if !defined(__aarch64__)
+#if !defined(__aarch64__) && !defined(__powerpc64__)
     case __NR_vserver:
 #endif
       return true;
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_sets.h b/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_sets.h
index 923533ec9..e2bb1db98 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_sets.h
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_sets.h
@@ -43,13 +43,14 @@ class SANDBOX_EXPORT SyscallSets {
   static bool IsDeniedGetOrModifySocket(int sysno);
 
 #if defined(__i386__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
   // Big multiplexing system call for sockets.
   static bool IsSocketCall(int sysno);
 #endif
 
 #if defined(__x86_64__) || defined(__arm__) || defined(__mips__) || \
-    defined(__aarch64__)
+    defined(__aarch64__) || defined(__powerpc64__)
   static bool IsNetworkSocketInformation(int sysno);
 #endif
 
@@ -88,7 +89,8 @@ class SANDBOX_EXPORT SyscallSets {
 #endif
 
 #if defined(__i386__) || \
-    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
+    (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)) || \
+    defined(__powerpc64__)
   // Big system V multiplexing system call.
   static bool IsSystemVIpc(int sysno);
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf/syscall.cc b/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf/syscall.cc
index 34edabd2b..10fa5fd07 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf/syscall.cc
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf/syscall.cc
@@ -16,7 +16,7 @@ namespace sandbox {
 namespace {
 
 #if defined(ARCH_CPU_X86_FAMILY) || defined(ARCH_CPU_ARM_FAMILY) || \
-    defined(ARCH_CPU_MIPS_FAMILY)
+    defined(ARCH_CPU_MIPS_FAMILY) || defined (ARCH_CPU_PPC64_FAMILY)
 // Number that's not currently used by any Linux kernel ABIs.
 const int kInvalidSyscallNumber = 0x351d3;
 #else
@@ -308,12 +308,56 @@ asm(// We need to be able to tell the kernel exactly where we made a
     // Enter the kernel
     "svc 0\n"
     "2:ret\n"
+    ".cfi_endproc\n"
+    ".size SyscallAsm, .-SyscallAsm\n"
+#elif defined(__powerpc64__)
+    ".text\n"
+    ".align 4\n"
+    ".type SyscallAsm @function\n"
+    "SyscallAsm:\n"
+    ".cfi_startproc\n"
+
+    // Check if r3 is negative
+    "cmpdi 3, 0\n"
+    "bgt 2f\n"
+
+    // Load address of 3f into r3 and return
+    "mflr 10\n"
+    "bl 1f\n"
+    "1: mflr 3\n"
+    "mtlr 10\n"
+    "addi 3, 3, 4*13\n"
+    "blr\n"
+
+    // Load arguments from array into r3-8
+    // save param 3 in r10
+    "2:\n"
+    "mr 0, 3\n"
+    "ld 3, 0(4)\n"
+    "ld 5, 16(4)\n"
+    "ld 6, 24(4)\n"
+    "ld 7, 32(4)\n"
+    "ld 8, 40(4)\n"
+    "ld 4, 8(4)\n"
+    "li 9, 0\n"
+
+    // Enter kernel
+    "sc\n"
+
+    // Magic return address
+    "3:\n"
+    // Like MIPS, ppc64 return values are always positive.
+    // Check for error in cr0.SO and negate upon error
+    "bc 4, 3, 4f\n"
+    "neg 3, 3\n"
+    "4: blr\n"
+
     ".cfi_endproc\n"
     ".size SyscallAsm, .-SyscallAsm\n"
 #endif
     );  // asm
 
-#if defined(__x86_64__)
+#if defined(__x86_64__) || defined(__powerpc64__)
 extern "C" {
 intptr_t SyscallAsm(intptr_t nr, const intptr_t args[6]);
 }
@@ -427,6 +471,8 @@ intptr_t Syscall::Call(int nr,
     ret = inout;
   }
 
+#elif defined(__powerpc64__)
+  intptr_t ret = SyscallAsm(nr, args);
 #else
 #error "Unimplemented architecture"
 #endif
@@ -443,8 +489,18 @@ void Syscall::PutValueInUcontext(intptr_t ret_val, ucontext_t* ctx) {
     // needs to be changed back.
     ret_val = -ret_val;
     SECCOMP_PARM4(ctx) = 1;
-  } else
+  } else {
     SECCOMP_PARM4(ctx) = 0;
+  }
+#endif
+#if defined(__powerpc64__)
+  // Same as MIPS, need to invert ret and set error register (cr0.SO)
+  if (ret_val <= -1 && ret_val >= -4095) {
+    ret_val = -ret_val;
+    ctx->uc_mcontext.regs->ccr |= (1 << 28);
+  } else {
+    ctx->uc_mcontext.regs->ccr &= ~(1 << 28);
+  }
 #endif
   SECCOMP_RESULT(ctx) = static_cast<greg_t>(ret_val);
 }
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf/trap.cc b/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf/trap.cc
index 663d9e896..f55e03ed5 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf/trap.cc
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/seccomp-bpf/trap.cc
@@ -237,6 +237,20 @@ void Trap::SigSys(int nr, LinuxSigInfo* info, ucontext_t* ctx) {
       SetIsInSigHandler();
     }
 
+#if defined(__powerpc64__)
+    // On ppc64+glibc, some syscalls seem to accidentally negate the first
+    // parameter which causes checks against it to fail. For now, manually
+    // negate them back.
+    // TODO(shawn@anastas.io): investigate this issue further
+    auto nr = SECCOMP_SYSCALL(ctx);
+    if (nr == __NR_openat || nr == __NR_mkdirat || nr == __NR_faccessat || nr == __NR_readlinkat ||
+        nr == __NR_renameat || nr == __NR_renameat2 || nr == __NR_newfstatat || nr == __NR_unlinkat) {
+        if (static_cast<int>(SECCOMP_PARM1(ctx)) > 0) {
+            SECCOMP_PARM1(ctx) = -SECCOMP_PARM1(ctx);
+        }
+    }
+#endif
+
     // Copy the seccomp-specific data into a arch_seccomp_data structure. This
     // is what we are showing to TrapFnc callbacks that the system call
     // evaluator registered with the sandbox.
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/services/credentials.cc b/qtwebengine/src/3rdparty/chromium/sandbox/linux/services/credentials.cc
index d7b5d8c44..4adc6d0d4 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/services/credentials.cc
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/services/credentials.cc
@@ -81,7 +81,7 @@ bool ChrootToSafeEmptyDir() {
   pid_t pid = -1;
   alignas(16) char stack_buf[PTHREAD_STACK_MIN];
 #if defined(ARCH_CPU_X86_FAMILY) || defined(ARCH_CPU_ARM_FAMILY) || \
-    defined(ARCH_CPU_MIPS_FAMILY)
+    defined(ARCH_CPU_MIPS_FAMILY) || defined(ARCH_CPU_PPC64_FAMILY)
   // The stack grows downward.
   void* stack = stack_buf + sizeof(stack_buf);
 #else
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/services/syscall_wrappers.cc b/qtwebengine/src/3rdparty/chromium/sandbox/linux/services/syscall_wrappers.cc
index fcfd2aa12..f6eb32fb7 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/services/syscall_wrappers.cc
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/services/syscall_wrappers.cc
@@ -58,7 +58,7 @@ long sys_clone(unsigned long flags,
 #if defined(ARCH_CPU_X86_64)
   return syscall(__NR_clone, flags, child_stack, ptid, ctid, tls);
 #elif defined(ARCH_CPU_X86) || defined(ARCH_CPU_ARM_FAMILY) || \
-    defined(ARCH_CPU_MIPS_FAMILY)
+    defined(ARCH_CPU_MIPS_FAMILY) || defined(ARCH_CPU_PPC64_FAMILY)
   // CONFIG_CLONE_BACKWARDS defined.
   return syscall(__NR_clone, flags, child_stack, ptid, tls, ctid);
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/syscall_broker/broker_process.cc b/qtwebengine/src/3rdparty/chromium/sandbox/linux/syscall_broker/broker_process.cc
index 8321d2379..7e5ad1de3 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/syscall_broker/broker_process.cc
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/syscall_broker/broker_process.cc
@@ -157,7 +157,7 @@ bool BrokerProcess::IsSyscallAllowed(int sysno) const {
 #if defined(__NR_fstatat)
     case __NR_fstatat:
 #endif
-#if defined(__x86_64__) || defined(__aarch64__)
+#if defined(__x86_64__) || defined(__aarch64__) || defined(__powerpc64__)
     case __NR_newfstatat:
 #endif
       return !fast_check_in_client_ || allowed_command_set_.test(COMMAND_STAT);
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/linux_seccomp.h b/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/linux_seccomp.h
index a60fe2ad3..9dccdb51d 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/linux_seccomp.h
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/linux_seccomp.h
@@ -29,6 +29,9 @@
 #ifndef EM_AARCH64
 #define EM_AARCH64 183
 #endif
+#ifndef EM_PPC64
+#define EM_PPC64 21
+#endif
 
 #ifndef __AUDIT_ARCH_64BIT
 #define __AUDIT_ARCH_64BIT 0x80000000
@@ -54,6 +57,12 @@
 #ifndef AUDIT_ARCH_AARCH64
 #define AUDIT_ARCH_AARCH64 (EM_AARCH64 | __AUDIT_ARCH_64BIT | __AUDIT_ARCH_LE)
 #endif
+#ifndef AUDIT_ARCH_PPC64
+#define AUDIT_ARCH_PPC64 (EM_PPC64 | __AUDIT_ARCH_64BIT)
+#endif
+#ifndef AUDIT_ARCH_PPC64LE
+#define AUDIT_ARCH_PPC64LE (EM_PPC64 | __AUDIT_ARCH_64BIT | __AUDIT_ARCH_LE)
+#endif
 
 // For prctl.h
 #ifndef PR_SET_SECCOMP
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/linux_signal.h b/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/linux_signal.h
index f5a736761..515b21a5f 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/linux_signal.h
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/linux_signal.h
@@ -13,7 +13,7 @@
 // (not undefined, but defined different values and in different memory
 // layouts). So, fill the gap here.
 #if defined(__i386__) || defined(__x86_64__) || defined(__arm__) || \
-    defined(__aarch64__)
+    defined(__aarch64__) || defined(__powerpc64__)
 
 #define LINUX_SIGHUP 1
 #define LINUX_SIGINT 2
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/linux_syscalls.h b/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/linux_syscalls.h
index 2b78a0cc3..0a70f5ea5 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/linux_syscalls.h
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/linux_syscalls.h
@@ -35,5 +35,9 @@
 #include "sandbox/linux/system_headers/arm64_linux_syscalls.h"
 #endif
 
+#if defined(__powerpc64__)
+#include "sandbox/linux/system_headers/ppc64_linux_syscalls.h"
+#endif
+
 #endif  // SANDBOX_LINUX_SYSTEM_HEADERS_LINUX_SYSCALLS_H_
 
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/linux_ucontext.h b/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/linux_ucontext.h
index 22ce78027..a69b024c2 100644
--- a/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/linux_ucontext.h
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/linux_ucontext.h
@@ -11,6 +11,8 @@
 #include "sandbox/linux/system_headers/arm_linux_ucontext.h"
 #elif defined(__i386__)
 #include "sandbox/linux/system_headers/i386_linux_ucontext.h"
+#elif defined(__powerpc64__)
+#include "sandbox/linux/system_headers/ppc64_linux_ucontext.h"
 #else
 #error "No support for your architecture in PNaCl header"
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/ppc64_linux_syscalls.h b/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/ppc64_linux_syscalls.h
new file mode 100644
index 000000000..ccacffe22
--- /dev/null
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/ppc64_linux_syscalls.h
@@ -0,0 +1,12 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef SANDBOX_LINUX_SYSTEM_HEADERS_PPC64_LINUX_SYSCALLS_H_
+#define SANDBOX_LINUX_SYSTEM_HEADERS_PPC64_LINUX_SYSCALLS_H_
+
+#include <asm/unistd.h>
+
+//TODO: is it necessary to redefine syscall numbers for PPC64?
+
+#endif  // SANDBOX_LINUX_SYSTEM_HEADERS_PPC64_LINUX_SYSCALLS_H_
diff --git a/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/ppc64_linux_ucontext.h b/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/ppc64_linux_ucontext.h
new file mode 100644
index 000000000..07728e087
--- /dev/null
+++ b/qtwebengine/src/3rdparty/chromium/sandbox/linux/system_headers/ppc64_linux_ucontext.h
@@ -0,0 +1,12 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef SANDBOX_LINUX_SYSTEM_HEADERS_PPC64_LINUX_UCONTEXT_H_
+#define SANDBOX_LINUX_SYSTEM_HEADERS_PPC64_LINUX_UCONTEXT_H_
+
+#include <sys/ucontext.h>
+
+//TODO: is it necessary to redefine ucontext on PPC64?
+
+#endif  // SANDBOX_LINUX_SYSTEM_HEADERS_PPC64_LINUX_UCONTEXT_H_
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/angle/src/compiler/translator/InfoSink.h b/qtwebengine/src/3rdparty/chromium/third_party/angle/src/compiler/translator/InfoSink.h
index 3a807e1e3..5258617a7 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/angle/src/compiler/translator/InfoSink.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/angle/src/compiler/translator/InfoSink.h
@@ -92,7 +92,16 @@ class TInfoSinkBase
             stream.precision(8);
             stream << f;
         }
-        sink.append(stream.str());
+
+        // Hack to work around a bug where negative floating point values
+        // are rendered like '.0.5' instead of '-0.5'
+        std::string res(stream.str());
+
+        if (signbit(f)) { // test if f is negative
+            res[0] = '-';
+        }
+
+        sink.append(res);
         return *this;
     }
     // Write boolean values as their names instead of integral value.
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/angle/src/libANGLE/Constants.h b/qtwebengine/src/3rdparty/chromium/third_party/angle/src/libANGLE/Constants.h
index 746789913..9132b3fc0 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/angle/src/libANGLE/Constants.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/angle/src/libANGLE/Constants.h
@@ -9,6 +9,7 @@
 #ifndef LIBANGLE_CONSTANTS_H_
 #define LIBANGLE_CONSTANTS_H_
 
+#include <cstddef>
 #include "common/platform.h"
 
 #include <stdint.h>
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/boringssl/BUILD.gn b/qtwebengine/src/3rdparty/chromium/third_party/boringssl/BUILD.gn
index b435499f4..ac8a84b6d 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/boringssl/BUILD.gn
+++ b/qtwebengine/src/3rdparty/chromium/third_party/boringssl/BUILD.gn
@@ -101,6 +101,13 @@ if (is_win && !is_msan && current_cpu != "arm64") {
       } else {
         public_configs = [ ":no_asm_config" ]
       }
+    } else if (current_cpu == "ppc64") {
+      if (is_linux) {
+        # TODO: ppc64 (be) check
+        sources += crypto_sources_linux_ppc64le
+      } else {
+        public_configs = [ ":no_asm_config" ]
+      }
     } else {
       public_configs = [ ":no_asm_config" ]
     }
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/raw_context_cpu.h b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/raw_context_cpu.h
index 07d9171a0..9aed4cb36 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/raw_context_cpu.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/raw_context_cpu.h
@@ -44,6 +44,8 @@ typedef MDRawContextARM RawContextCPU;
 typedef MDRawContextARM64_Old RawContextCPU;
 #elif defined(__mips__)
 typedef MDRawContextMIPS RawContextCPU;
+#elif defined(__powerpc64__)
+typedef MDRawContextPPC64 RawContextCPU;
 #else
 #error "This code has not been ported to your platform yet."
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/thread_info.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/thread_info.cc
index aae1dc13b..03afec7a5 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/thread_info.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/thread_info.cc
@@ -270,7 +270,42 @@ void ThreadInfo::FillCPUContext(RawContextCPU* out) const {
   out->float_save.fir = mcontext.fpc_eir;
 #endif
 }
-#endif  // __mips__
+
+#elif defined(__powerpc64__)
+
+uintptr_t ThreadInfo::GetInstructionPointer() const {
+    return mcontext.gp_regs[PT_NIP];
+}
+
+void ThreadInfo::FillCPUContext(RawContextCPU* out) const {
+    out->context_flags = MD_CONTEXT_PPC64_FULL;
+    for (int i = 0; i < MD_CONTEXT_PPC64_GPR_COUNT; i++)
+        out->gpr[i] = mcontext.gp_regs[i];
+
+    out->lr = mcontext.gp_regs[PT_LNK];
+    out->srr0 = mcontext.gp_regs[PT_NIP];
+    out->srr1 = mcontext.gp_regs[PT_MSR];
+    out->cr = mcontext.gp_regs[PT_CCR];
+    out->xer = mcontext.gp_regs[PT_XER];
+    out->ctr = mcontext.gp_regs[PT_CTR];
+    
+    for (int i = 0; i < MD_FLOATINGSAVEAREA_PPC_FPR_COUNT; i++)
+        out->float_save.fpregs[i] = mcontext.fp_regs[i];
+
+    out->float_save.fpscr = mcontext.fp_regs[NFPREG-1];
+
+    for (int i = 0; i < MD_VECTORSAVEAREA_PPC_VR_COUNT; i++)
+        out->vector_save.save_vr[i] = \
+            {(((uint64_t)vregs.vrregs[i][0]) << 32) 
+                          | vregs.vrregs[i][1], 
+            (((uint64_t)vregs.vrregs[i][2]) << 32)
+                         | vregs.vrregs[i][3]};
+
+    out->vrsave = vregs.vrsave;
+    out->vector_save.save_vscr = {0, vregs.vscr.vscr_word};
+    out->vector_save.save_vrvalid = 0xFFFFFFFF; 
+}
+#endif  // __powerpc64__
 
 void ThreadInfo::GetGeneralPurposeRegisters(void** gp_regs, size_t* size) {
   assert(gp_regs || size);
@@ -279,6 +314,11 @@ void ThreadInfo::GetGeneralPurposeRegisters(void** gp_regs, size_t* size) {
     *gp_regs = mcontext.gregs;
   if (size)
     *size = sizeof(mcontext.gregs);
+#elif defined(__powerpc64__)
+  if (gp_regs)
+    *gp_regs = mcontext.gp_regs;
+  if (size)
+    *size = sizeof(mcontext.gp_regs);
 #else
   if (gp_regs)
     *gp_regs = &regs;
@@ -294,6 +334,11 @@ void ThreadInfo::GetFloatingPointRegisters(void** fp_regs, size_t* size) {
     *fp_regs = &mcontext.fpregs;
   if (size)
     *size = sizeof(mcontext.fpregs);
+#elif defined(__powerpc64__)
+  if (fp_regs)
+    *fp_regs = &mcontext.fp_regs;
+  if (size)
+    *size = sizeof(mcontext.fp_regs);
 #else
   if (fp_regs)
     *fp_regs = &fpregs;
@@ -302,4 +347,13 @@ void ThreadInfo::GetFloatingPointRegisters(void** fp_regs, size_t* size) {
 #endif
 }
 
+#if defined(__powerpc64__)
+void ThreadInfo::GetVectorRegisters(void** v_regs, size_t* size) {
+    if (v_regs)
+        *v_regs = &vregs;
+    if (size)
+        *size = sizeof(vregs);
+}
+#endif
+
 }  // namespace google_breakpad
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/thread_info.h b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/thread_info.h
index fb216fa6d..593aac822 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/thread_info.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/thread_info.h
@@ -68,6 +68,10 @@ struct ThreadInfo {
   // Use the structures defined in <sys/user.h>
   struct user_regs_struct regs;
   struct user_fpsimd_struct fpregs;
+#elif defined(__powerpc64__)
+  // Use the structures defined in <sys/ucontext.h>.
+  mcontext_t mcontext;
+  vrregset_t vregs;
 #elif defined(__mips__)
   // Use the structure defined in <sys/ucontext.h>.
   mcontext_t mcontext;
@@ -84,6 +88,11 @@ struct ThreadInfo {
 
   // Returns the pointer and size of float point register area.
   void GetFloatingPointRegisters(void** fp_regs, size_t* size);
+
+#if defined(__powerpc64__)
+  // Returns the pointer and size of the vector register area. (PPC64 only)
+  void GetVectorRegisters(void** v_regs, size_t* size);
+#endif
 };
 
 }  // namespace google_breakpad
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/ucontext_reader.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/ucontext_reader.cc
index a8f9ccc72..7620cf6f7 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/ucontext_reader.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/ucontext_reader.cc
@@ -254,6 +254,48 @@ void UContextReader::FillCPUContext(RawContextCPU *out, const ucontext_t *uc) {
   out->float_save.fir = uc->uc_mcontext.fpc_eir;  // Unused.
 #endif
 }
+
+#elif defined(__powerpc64__)
+
+uintptr_t UContextReader::GetStackPointer(const ucontext_t* uc) {
+    return uc->uc_mcontext.gp_regs[MD_CONTEXT_PPC64_REG_SP];
+}
+
+uintptr_t UContextReader::GetInstructionPointer(const ucontext_t* uc) {
+    return uc->uc_mcontext.gp_regs[PT_NIP];
+}
+
+void UContextReader::FillCPUContext(RawContextCPU* out, const ucontext_t* uc,
+                                    const vrregset_t* vregs) {
+    out->context_flags = MD_CONTEXT_PPC64_FULL;
+
+    for (int i = 0; i < MD_CONTEXT_PPC64_GPR_COUNT; i++)
+        out->gpr[i] = uc->uc_mcontext.gp_regs[i];
+
+    out->lr = uc->uc_mcontext.gp_regs[PT_LNK];    
+    out->srr0 = uc->uc_mcontext.gp_regs[PT_NIP];
+    out->srr1 = uc->uc_mcontext.gp_regs[PT_MSR];
+    out->cr = uc->uc_mcontext.gp_regs[PT_CCR];
+    out->xer = uc->uc_mcontext.gp_regs[PT_XER];
+    out->ctr = uc->uc_mcontext.gp_regs[PT_CTR];
+    
+    for (int i = 0; i < MD_FLOATINGSAVEAREA_PPC_FPR_COUNT; i++)
+        out->float_save.fpregs[i] = uc->uc_mcontext.fp_regs[i];
+
+    out->float_save.fpscr = uc->uc_mcontext.fp_regs[NFPREG-1];
+
+    for (int i = 0; i < MD_VECTORSAVEAREA_PPC_VR_COUNT; i++)
+        out->vector_save.save_vr[i] =
+            {(((uint64_t)vregs->vrregs[i][0]) << 32) 
+                         | vregs->vrregs[i][1], 
+             (((uint64_t)vregs->vrregs[i][2]) << 32)
+                         | vregs->vrregs[i][3]};
+
+    out->vrsave = vregs->vrsave;
+    out->vector_save.save_vscr = {0, vregs->vscr.vscr_word};
+    out->vector_save.save_vrvalid = 0xFFFFFFFF; 
+}
+
 #endif
 
 }  // namespace google_breakpad
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/ucontext_reader.h b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/ucontext_reader.h
index f3dde1f4d..96079169d 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/ucontext_reader.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/dump_writer_common/ucontext_reader.h
@@ -54,6 +54,9 @@ struct UContextReader {
 #elif defined(__aarch64__)
   static void FillCPUContext(RawContextCPU *out, const ucontext_t *uc,
                              const struct fpsimd_context* fpregs);
+#elif defined(__powerpc64__)
+  static void FillCPUContext(RawContextCPU *out, const ucontext_t *uc,
+                             const vrregset_t* vregs);
 #else
   static void FillCPUContext(RawContextCPU *out, const ucontext_t *uc);
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/handler/exception_handler.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/handler/exception_handler.cc
index b895f6d7a..901cd68fb 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/handler/exception_handler.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/handler/exception_handler.cc
@@ -461,9 +461,16 @@ bool ExceptionHandler::HandleSignal(int /*sig*/, siginfo_t* info, void* uc) {
     memcpy(&g_crash_context_.float_state, fp_ptr,
            sizeof(g_crash_context_.float_state));
   }
+#elif defined(__powerpc64__)
+  // On PPC64, we must copy VR state
+  ucontext_t* uc_ptr = (ucontext_t*)uc;
+  if (uc_ptr->uc_mcontext.v_regs) {
+    memcpy(&g_crash_context_.vector_state, uc_ptr->uc_mcontext.v_regs,
+           sizeof(g_crash_context_.vector_state));
+  }
 #elif !defined(__ARM_EABI__) && !defined(__mips__)
   // FP state is not part of user ABI on ARM Linux.
-  // In case of MIPS Linux FP state is already part of ucontext_t
+  // In case of MIPS, Linux FP state is already part of ucontext_t
   // and 'float_state' is not a member of CrashContext.
   ucontext_t* uc_ptr = (ucontext_t*)uc;
   if (uc_ptr->uc_mcontext.fpregs) {
@@ -701,11 +708,19 @@ bool ExceptionHandler::WriteMinidump() {
   }
 #endif
 
-#if !defined(__ARM_EABI__) && !defined(__aarch64__) && !defined(__mips__)
+#if !defined(__ARM_EABI__) && !defined(__aarch64__) && !defined(__mips__) \
+    && !defined(__powerpc64__)
   // FPU state is not part of ARM EABI ucontext_t.
   memcpy(&context.float_state, context.context.uc_mcontext.fpregs,
          sizeof(context.float_state));
 #endif
+
+#if defined(__powerpc64__)
+  // Vector registers must be copied on PPC64
+  memcpy(&context.vector_state, context.context.uc_mcontext.v_regs,
+         sizeof(context.vector_state));
+#endif
+
   context.tid = sys_gettid();
 
   // Add an exception stream to the minidump for better reporting.
@@ -726,6 +741,9 @@ bool ExceptionHandler::WriteMinidump() {
 #elif defined(__mips__)
   context.siginfo.si_addr =
       reinterpret_cast<void*>(context.context.uc_mcontext.pc);
+#elif defined(__powerpc64__)
+  context.siginfo.si_addr =
+      reinterpret_cast<void*>(context.context.uc_mcontext.gp_regs[PT_NIP]);
 #else
 #error "This code has not been ported to your platform yet."
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/handler/exception_handler.h b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/handler/exception_handler.h
index f44483ff0..36ce6d6ce 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/handler/exception_handler.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/handler/exception_handler.h
@@ -192,7 +192,11 @@ class ExceptionHandler {
     siginfo_t siginfo;
     pid_t tid;  // the crashing thread.
     ucontext_t context;
-#if !defined(__ARM_EABI__) && !defined(__mips__)
+#if defined(__powerpc64__)
+    // PPC64's FP state is a part of ucontext_t like MIPS but the vector
+    // state is not, so a struct is needed.
+    vstate_t vector_state;
+#elif !defined(__ARM_EABI__) && !defined(__mips__)
     // #ifdef this out because FP state is not part of user ABI for Linux ARM.
     // In case of MIPS Linux FP state is already part of ucontext_t so
     // 'float_state' is not required.
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/handler/exception_handler_unittest.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/handler/exception_handler_unittest.cc
index bcbf9c26f..2c36ed41f 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/handler/exception_handler_unittest.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/handler/exception_handler_unittest.cc
@@ -307,7 +307,7 @@ TEST(ExceptionHandlerTest, ParallelChildCrashesDontHang) {
   }
 
   // Wait a while until the child should have crashed.
-  usleep(1000000);
+  usleep(2000000);
   // Kill the child if it is still running.
   kill(child, SIGKILL);
 
@@ -559,6 +559,8 @@ const unsigned char kIllegalInstruction[] = {
 #if defined(__mips__)
   // mfc2 zero,Impl - usually illegal in userspace.
   0x48, 0x00, 0x00, 0x48
+#elif defined(__powerpc64__)
+  0x01, 0x01, 0x01, 0x01 // Crashes on a tested POWER9 cpu
 #else
   // This crashes with SIGILL on x86/x86-64/arm.
   0xff, 0xff, 0xff, 0xff
@@ -754,10 +756,10 @@ TEST(ExceptionHandlerTest, InstructionPointerMemoryMaxBound) {
 
   // These are defined here so the parent can use them to check the
   // data from the minidump afterwards.
-  // Use 4k here because the OS will hand out a single page even
+  // Use the page size here because the OS will hand out a single page even
   // if a smaller size is requested, and this test wants to
   // test the upper bound of the memory range.
-  const uint32_t kMemorySize = 4096;  // bytes
+  const uint32_t kMemorySize = getpagesize();  // bytes
   const int kOffset = kMemorySize - sizeof(kIllegalInstruction);
 
   const pid_t child = fork();
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/microdump_writer/microdump_writer.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/microdump_writer/microdump_writer.cc
index fa3c1713a..6ce709e2f 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/microdump_writer/microdump_writer.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/microdump_writer/microdump_writer.cc
@@ -138,7 +138,9 @@ class MicrodumpWriter {
                   const MicrodumpExtraInfo& microdump_extra_info,
                   LinuxDumper* dumper)
       : ucontext_(context ? &context->context : NULL),
-#if !defined(__ARM_EABI__) && !defined(__mips__)
+#if defined(__powerpc64__)
+        vector_state_(context ? &context->vector_state : NULL),
+#elif !defined(__ARM_EABI__) && !defined(__mips__)
         float_state_(context ? &context->float_state : NULL),
 #endif
         dumper_(dumper),
@@ -337,6 +339,8 @@ class MicrodumpWriter {
 # else
 #  error "This mips ABI is currently not supported (n32)"
 #endif
+#elif defined(__powerpc64__)
+    const char kArch[] = "ppc64";
 #else
 #error "This code has not been ported to your platform yet"
 #endif
@@ -409,7 +413,9 @@ class MicrodumpWriter {
   void DumpCPUState() {
     RawContextCPU cpu;
     my_memset(&cpu, 0, sizeof(RawContextCPU));
-#if !defined(__ARM_EABI__) && !defined(__mips__)
+#if defined(__powerpc64__)
+    UContextReader::FillCPUContext(&cpu, ucontext_, vector_state_);
+#elif !defined(__ARM_EABI__) && !defined(__mips__)
     UContextReader::FillCPUContext(&cpu, ucontext_, float_state_);
 #else
     UContextReader::FillCPUContext(&cpu, ucontext_);
@@ -605,7 +611,9 @@ class MicrodumpWriter {
   void* Alloc(unsigned bytes) { return dumper_->allocator()->Alloc(bytes); }
 
   const ucontext_t* const ucontext_;
-#if !defined(__ARM_EABI__) && !defined(__mips__)
+#if defined(__powerpc64__)
+  const google_breakpad::vstate_t* const vector_state_;
+#elif !defined(__ARM_EABI__) && !defined(__mips__)
   const google_breakpad::fpstate_t* const float_state_;
 #endif
   LinuxDumper* dumper_;
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/microdump_writer/microdump_writer_unittest.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/microdump_writer/microdump_writer_unittest.cc
index c2fea0225..8c62c524a 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/microdump_writer/microdump_writer_unittest.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/microdump_writer/microdump_writer_unittest.cc
@@ -278,10 +278,19 @@ TEST(MicrodumpWriterTest, BasicWithMappings) {
   CrashAndGetMicrodump(mappings, MicrodumpExtraInfo(), &buf);
   ASSERT_TRUE(ContainsMicrodump(buf));
 
+  int page_size = getpagesize();
 #ifdef __LP64__
-  ASSERT_NE(std::string::npos,
-            buf.find("M 0000000000001000 000000000000002A 0000000000001000 "
-                     "33221100554477668899AABBCCDDEEFF0 libfoo.so"));
+  // This test is only available for the following page sizes
+  ASSERT_TRUE((page_size == 4096) || (page_size == 65536));
+  if (page_size == 4096) { 
+    ASSERT_NE(std::string::npos,
+              buf.find("M 0000000000001000 000000000000002A 0000000000001000 "
+                       "33221100554477668899AABBCCDDEEFF0 libfoo.so"));
+  } else {
+    ASSERT_NE(std::string::npos,
+              buf.find("M 0000000000010000 000000000000002A 0000000000010000 "
+                       "33221100554477668899AABBCCDDEEFF0 libfoo.so"));
+  }
 #else
   ASSERT_NE(std::string::npos,
             buf.find("M 00001000 0000002A 00001000 "
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_core_dumper.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_core_dumper.cc
index 4756a5416..4805fb694 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_core_dumper.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_core_dumper.cc
@@ -117,6 +117,9 @@ bool LinuxCoreDumper::GetThreadInfoByIndex(size_t index, ThreadInfo* info) {
 #elif defined(__mips__)
   stack_pointer =
       reinterpret_cast<uint8_t*>(info->mcontext.gregs[MD_CONTEXT_MIPS_REG_SP]);
+#elif defined(__powerpc64__)
+  stack_pointer =
+      reinterpret_cast<uint8_t*>(info->mcontext.gp_regs[MD_CONTEXT_PPC64_REG_SP]);
 #else
 #error "This code hasn't been ported to your platform yet."
 #endif
@@ -202,7 +205,10 @@ bool LinuxCoreDumper::EnumerateThreads() {
         memset(&info, 0, sizeof(ThreadInfo));
         info.tgid = status->pr_pgrp;
         info.ppid = status->pr_ppid;
-#if defined(__mips__)
+#if defined(__powerpc64__)
+        for (int i = 0; i < 31; i++)
+            info.mcontext.gp_regs[i] = status->pr_reg[i];
+#elif defined(__mips__)
 #if defined(__ANDROID__)
         for (int i = EF_R0; i <= EF_R31; i++)
           info.mcontext.gregs[i - EF_R0] = status->pr_reg[i];
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_dumper.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_dumper.cc
index 1112035bc..8523dad63 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_dumper.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_dumper.cc
@@ -765,7 +765,9 @@ bool LinuxDumper::GetStackInfo(const void** stack, size_t* stack_len,
       reinterpret_cast<uint8_t*>(int_stack_pointer & ~(page_size - 1));
 
   // The number of bytes of stack which we try to capture.
-  static const ptrdiff_t kStackToCapture = 32 * 1024;
+  // This now depends on page_size to avoid missing data
+  // on systems with larger page sizes.
+  static const ptrdiff_t kStackToCapture = 8 * page_size;
 
   const MappingInfo* mapping = FindMapping(stack_pointer);
   if (!mapping)
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_dumper.h b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_dumper.h
index f4a75d906..020981f57 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_dumper.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_dumper.h
@@ -63,7 +63,8 @@ namespace google_breakpad {
  (defined(__mips__) && _MIPS_SIM == _ABIO32)
 typedef Elf32_auxv_t elf_aux_entry;
 #elif defined(__x86_64) || defined(__aarch64__) || \
-     (defined(__mips__) && _MIPS_SIM != _ABIO32)
+     (defined(__mips__) && _MIPS_SIM != _ABIO32) || \
+     defined(__powerpc64__)
 typedef Elf64_auxv_t elf_aux_entry;
 #endif
 
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_dumper_unittest_helper.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_dumper_unittest_helper.cc
index 3ad48e501..1688c365e 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_dumper_unittest_helper.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_dumper_unittest_helper.cc
@@ -51,6 +51,8 @@
 #define TID_PTR_REGISTER "rcx"
 #elif defined(__mips__)
 #define TID_PTR_REGISTER "$1"
+#elif defined(__powerpc64__)
+#define TID_PTR_REGISTER "r8"
 #else
 #error This test has not been ported to this platform.
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_ptrace_dumper.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_ptrace_dumper.cc
index 8a3f04e29..e607b28d5 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_ptrace_dumper.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_ptrace_dumper.cc
@@ -154,19 +154,27 @@ bool LinuxPtraceDumper::CopyFromProcess(void* dest, pid_t child,
   return true;
 }
 
-bool LinuxPtraceDumper::ReadRegisterSet(ThreadInfo* info, pid_t tid)
-{
+bool LinuxPtraceDumper::ReadRegisterSet(ThreadInfo* info, pid_t tid) {
 #ifdef PTRACE_GETREGSET
   struct iovec io;
   info->GetGeneralPurposeRegisters(&io.iov_base, &io.iov_len);
-  if (sys_ptrace(PTRACE_GETREGSET, tid, (void*)NT_PRSTATUS, (void*)&io) == -1) {
+  if (ptrace(PTRACE_GETREGSET, tid, (void*)NT_PRSTATUS, (void*)&io) == -1) {
     return false;
   }
 
   info->GetFloatingPointRegisters(&io.iov_base, &io.iov_len);
-  if (sys_ptrace(PTRACE_GETREGSET, tid, (void*)NT_FPREGSET, (void*)&io) == -1) {
+  if (ptrace(PTRACE_GETREGSET, tid, (void*)NT_FPREGSET, (void*)&io) == -1) {
     return false;
   }
+
+#if defined(__powerpc64__)
+  // Grab the vector registers on PPC64 too
+  info->GetVectorRegisters(&io.iov_base, &io.iov_len);
+  if (ptrace(PTRACE_GETREGSET, tid, (void*)NT_PPC_VMX, (void*)&io) == -1) {
+    return false;
+  }
+#endif // defined(__powerpc64__)
+
   return true;
 #else
   return false;
@@ -303,6 +311,9 @@ bool LinuxPtraceDumper::GetThreadInfoByIndex(size_t index, ThreadInfo* info) {
 #elif defined(__mips__)
   stack_pointer =
       reinterpret_cast<uint8_t*>(info->mcontext.gregs[MD_CONTEXT_MIPS_REG_SP]);
+#elif defined(__powerpc64__)
+  stack_pointer =
+      reinterpret_cast<uint8_t*>(info->mcontext.gp_regs[MD_CONTEXT_PPC64_REG_SP]);
 #else
 #error "This code hasn't been ported to your platform yet."
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_ptrace_dumper_unittest.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_ptrace_dumper_unittest.cc
index a41dafce0..31743940d 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_ptrace_dumper_unittest.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/linux_ptrace_dumper_unittest.cc
@@ -462,6 +462,9 @@ TEST(LinuxPtraceDumperTest, VerifyStackReadWithMultipleThreads) {
 #elif defined(__mips__)
     pid_t* process_tid_location =
         reinterpret_cast<pid_t*>(one_thread.mcontext.gregs[1]);
+#elif defined(__powerpc64__)
+    pid_t* process_tid_location =
+        reinterpret_cast<pid_t*>(one_thread.mcontext.gp_regs[8]);
 #else
 #error This test has not been ported to this platform.
 #endif
@@ -559,6 +562,8 @@ TEST_F(LinuxPtraceDumperTest, SanitizeStackCopy) {
   uintptr_t heap_addr = thread_info.regs.rcx;
 #elif defined(__mips__)
   uintptr_t heap_addr = thread_info.mcontext.gregs[1];
+#elif defined(__powerpc64__)
+  uintptr_t heap_addr = thread_info.mcontext.gp_regs[8];
 #else
 #error This test has not been ported to this platform.
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/minidump_writer.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/minidump_writer.cc
index f8cdf2a1c..cb808c151 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/minidump_writer.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/minidump_writer.cc
@@ -136,7 +136,9 @@ class MinidumpWriter {
       : fd_(minidump_fd),
         path_(minidump_path),
         ucontext_(context ? &context->context : NULL),
-#if !defined(__ARM_EABI__) && !defined(__mips__)
+#if defined(__powerpc64__)
+        vector_state_(context ? &context->vector_state : NULL),
+#elif !defined(__ARM_EABI__) && !defined(__mips__)
         float_state_(context ? &context->float_state : NULL),
 #endif
         dumper_(dumper),
@@ -468,7 +470,9 @@ class MinidumpWriter {
         if (!cpu.Allocate())
           return false;
         my_memset(cpu.get(), 0, sizeof(RawContextCPU));
-#if !defined(__ARM_EABI__) && !defined(__mips__)
+#if defined(__powerpc64__)
+        UContextReader::FillCPUContext(cpu.get(), ucontext_, vector_state_);
+#elif !defined(__ARM_EABI__) && !defined(__mips__)
         UContextReader::FillCPUContext(cpu.get(), ucontext_, float_state_);
 #else
         UContextReader::FillCPUContext(cpu.get(), ucontext_);
@@ -897,7 +901,7 @@ class MinidumpWriter {
     dirent->location.rva = 0;
   }
 
-#if defined(__i386__) || defined(__x86_64__) || defined(__mips__)
+#if defined(__i386__) || defined(__x86_64__) || defined(__mips__) || defined(__powerpc64__)
   bool WriteCPUInformation(MDRawSystemInfo* sys_info) {
     char vendor_id[sizeof(sys_info->cpu.x86_cpu_info.vendor_id) + 1] = {0};
     static const char vendor_id_name[] = "vendor_id";
@@ -917,7 +921,9 @@ class MinidumpWriter {
 
     // processor_architecture should always be set, do this first
     sys_info->processor_architecture =
-#if defined(__mips__)
+#if defined(__powerpc64__)
+        MD_CPU_ARCHITECTURE_PPC64;
+#elif defined(__mips__)
 # if _MIPS_SIM == _ABIO32
         MD_CPU_ARCHITECTURE_MIPS;
 # elif _MIPS_SIM == _ABI64
@@ -1333,7 +1339,9 @@ class MinidumpWriter {
   const char* path_;  // Path to the file where the minidum should be written.
 
   const ucontext_t* const ucontext_;  // also from the signal handler
-#if !defined(__ARM_EABI__) && !defined(__mips__)
+#if defined(__powerpc64__)
+  const google_breakpad::vstate_t* const vector_state_;
+#elif !defined(__ARM_EABI__) && !defined(__mips__)
   const google_breakpad::fpstate_t* const float_state_;  // ditto
 #endif
   LinuxDumper* dumper_;
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/minidump_writer.h b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/minidump_writer.h
index d1cc5624c..320847643 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/minidump_writer.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/minidump_writer.h
@@ -47,6 +47,8 @@ class ExceptionHandler;
 
 #if defined(__aarch64__)
 typedef struct fpsimd_context fpstate_t;
+#elif defined(__powerpc64__)
+typedef vrregset_t vstate_t;
 #elif !defined(__ARM_EABI__) && !defined(__mips__)
 typedef struct _fpstate fpstate_t;
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/minidump_writer_unittest.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/minidump_writer_unittest.cc
index c951e69d8..e1d6e40d6 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/minidump_writer_unittest.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/client/linux/minidump_writer/minidump_writer_unittest.cc
@@ -714,6 +714,9 @@ TEST(MinidumpWriterTest, InvalidStackPointer) {
 #elif defined(__mips__)
   context.context.uc_mcontext.gregs[MD_CONTEXT_MIPS_REG_SP] =
       invalid_stack_pointer;
+#elif defined(__powerpc64__)
+  context.context.uc_mcontext.gp_regs[MD_CONTEXT_PPC64_REG_SP] =
+      invalid_stack_pointer;
 #else
 # error "This code has not been ported to your platform yet."
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/common/linux/memory_mapped_file.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/common/linux/memory_mapped_file.cc
index 4e938269f..f0ff15d96 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/common/linux/memory_mapped_file.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/common/linux/memory_mapped_file.cc
@@ -65,8 +65,7 @@ bool MemoryMappedFile::Map(const char* path, size_t offset) {
   }
 
 #if defined(__x86_64__) || defined(__aarch64__) || \
-   (defined(__mips__) && _MIPS_SIM == _ABI64)
-
+   (defined(__mips__) && _MIPS_SIM == _ABI64) || defined(__powerpc64__)
   struct kernel_stat st;
   if (sys_fstat(fd, &st) == -1 || st.st_size < 0) {
 #else
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/common/linux/memory_mapped_file_unittest.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/common/linux/memory_mapped_file_unittest.cc
index fad59f40c..616496d67 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/common/linux/memory_mapped_file_unittest.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/common/linux/memory_mapped_file_unittest.cc
@@ -176,9 +176,10 @@ TEST_F(MemoryMappedFileTest, RemapAfterMap) {
 TEST_F(MemoryMappedFileTest, MapWithOffset) {
   // Put more data in the test file this time. Offsets can only be
   // done on page boundaries, so we need a two page file to test this.
-  const int page_size = 4096;
-  char data1[2 * page_size];
-  size_t data1_size = sizeof(data1);
+  const int page_size = getpagesize();
+  char *data1 = static_cast<char*>(malloc(2 * page_size));
+  EXPECT_TRUE(data1 != NULL);
+  size_t data1_size = (2 * page_size);
   for (size_t i = 0; i < data1_size; ++i) {
     data1[i] = i & 0x7f;
   }
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/common/memory_allocator_unittest.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/common/memory_allocator_unittest.cc
index 43c86314c..27325b813 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/common/memory_allocator_unittest.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/common/memory_allocator_unittest.cc
@@ -57,8 +57,9 @@
 
   EXPECT_EQ(0U, allocator.pages_allocated());
   uint8_t *p = reinterpret_cast<uint8_t*>(allocator.Alloc(10000));
+  uint64_t expected_pages = 1 + ((10000 - 1) / getpagesize());
   ASSERT_FALSE(p == NULL);
-  EXPECT_EQ(3U, allocator.pages_allocated());
+  EXPECT_EQ(expected_pages, allocator.pages_allocated());
   for (unsigned i = 1; i < 10; ++i) {
     uint8_t *p = reinterpret_cast<uint8_t*>(allocator.Alloc(i));
     ASSERT_FALSE(p == NULL);
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/processor/exploitability_linux.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/processor/exploitability_linux.cc
index ccc9f1459..debaed4d6 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/processor/exploitability_linux.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/processor/exploitability_linux.cc
@@ -202,12 +202,14 @@ bool ExploitabilityLinux::EndedOnIllegalWrite(uint64_t instruction_ptr) {
   // Check architecture and set architecture variable to corresponding flag
   // in objdump.
   switch (context->GetContextCPU()) {
+#if defined(__i386) || defined(__x86_64)
     case MD_CONTEXT_X86:
       architecture = "i386";
       break;
     case MD_CONTEXT_AMD64:
       architecture = "i386:x86-64";
       break;
+#endif
     default:
       // Unsupported architecture. Note that ARM architectures are not
       // supported because objdump does not support ARM.
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/processor/exploitability_unittest.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/processor/exploitability_unittest.cc
index 528ee5f21..72764d6c1 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/processor/exploitability_unittest.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/processor/exploitability_unittest.cc
@@ -104,6 +104,8 @@ ExploitabilityFor(const string& filename) {
 }
 
 TEST(ExploitabilityTest, TestWindowsEngine) {
+// The following tests are only executable on an x86-class linux machine.
+#if !defined(_WIN32) && (defined(__i386) || defined(__x86_64))
   ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH,
             ExploitabilityFor("ascii_read_av.dmp"));
   ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH,
@@ -136,9 +138,12 @@ TEST(ExploitabilityTest, TestWindowsEngine) {
             ExploitabilityFor("read_av_clobber_write.dmp"));
   ASSERT_EQ(google_breakpad::EXPLOITABILITY_LOW,
             ExploitabilityFor("read_av_conditional.dmp"));
+#endif
 }
 
 TEST(ExploitabilityTest, TestLinuxEngine) {
+// The following tests are only executable on an x86-class linux machine.
+#if defined(__i386) || defined(__x86_64)
   ASSERT_EQ(google_breakpad::EXPLOITABILITY_INTERESTING,
             ExploitabilityFor("linux_null_read_av.dmp"));
   ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH,
@@ -171,7 +176,8 @@ TEST(ExploitabilityTest, TestLinuxEngine) {
             ExploitabilityFor("linux_executable_heap.dmp"));
   ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH,
             ExploitabilityFor("linux_jmp_to_module_not_exe_region.dmp"));
-#ifndef _WIN32
+#endif
+#if !defined(_WIN32) && (defined(__i386) || defined(__x86_64))
   ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH,
             ExploitabilityFor("linux_write_to_nonwritable_module.dmp"));
   ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH,
@@ -182,10 +188,10 @@ TEST(ExploitabilityTest, TestLinuxEngine) {
             ExploitabilityFor("linux_write_to_outside_module_via_math.dmp"));
   ASSERT_EQ(google_breakpad::EXPLOITABILITY_INTERESTING,
             ExploitabilityFor("linux_write_to_under_4k.dmp"));
-#endif  // _WIN32
+#endif  // !defined(_WIN32) && (!defined(__i386) && !defined(__x86_64))
 }
 
-#ifndef _WIN32
+#if !defined(_WIN32) && (defined(__i386) || defined(__x86_64))
 TEST(ExploitabilityLinuxUtilsTest, DisassembleBytesTest) {
   ASSERT_FALSE(ExploitabilityLinuxTest::DisassembleBytes("", NULL, 5, NULL));
   uint8_t bytes[6] = {0xc7, 0x0, 0x5, 0x0, 0x0, 0x0};
@@ -301,6 +307,7 @@ TEST(ExploitabilityLinuxUtilsTest, CalculateAddressTest) {
                                                          context,
                                                          &write_address));
 }
-#endif  // _WIN32
+#endif  // !defined(_WIN32) && (defined(__i386) || defined(__x86_64))
+
 
 }  // namespace
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/tools/linux/md2core/minidump-2-core.cc b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/tools/linux/md2core/minidump-2-core.cc
index 941586e9f..49cdc3fc2 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/tools/linux/md2core/minidump-2-core.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/breakpad/breakpad/src/tools/linux/md2core/minidump-2-core.cc
@@ -76,6 +76,8 @@
   #define ELF_ARCH  EM_MIPS
 #elif defined(__aarch64__)
   #define ELF_ARCH  EM_AARCH64
+#elif defined(__powerpc64__)
+  #define ELF_ARCH  EM_PPC64
 #endif
 
 #if defined(__arm__)
@@ -86,6 +88,8 @@ typedef user_regs user_regs_struct;
 #elif defined (__mips__)
 // This file-local typedef simplifies the source code.
 typedef gregset_t user_regs_struct;
+#elif defined(__powerpc64__)
+typedef struct pt_regs user_regs_struct;
 #endif
 
 using google_breakpad::MDTypeHelper;
@@ -320,6 +324,9 @@ struct CrashedProcess {
 #endif
 #if defined(__aarch64__)
     user_fpsimd_struct fpregs;
+#endif
+#if defined(__powerpc64__)
+    mcontext_t mcontext;
 #endif
     uintptr_t stack_addr;
     const uint8_t* stack;
@@ -534,6 +541,38 @@ ParseThreadRegisters(CrashedProcess::Thread* thread,
   thread->mcontext.fpc_eir = rawregs->float_save.fir;
 #endif
 }
+#elif defined(__powerpc64__)
+static void
+ParseThreadRegisters(CrashedProcess::Thread* thread,
+                     const MinidumpMemoryRange& range) {
+  const MDRawContextPPC64* rawregs = range.GetData<MDRawContextPPC64>(0);
+
+  for (int i = 0; i < MD_CONTEXT_PPC64_GPR_COUNT; i++)
+    thread->mcontext.gp_regs[i] = rawregs->gpr[i];
+
+  thread->mcontext.gp_regs[PT_LNK] = rawregs->lr;
+  thread->mcontext.gp_regs[PT_NIP] = rawregs->srr0;
+  thread->mcontext.gp_regs[PT_MSR] = rawregs->srr1;
+  thread->mcontext.gp_regs[PT_CCR] = rawregs->cr;
+  thread->mcontext.gp_regs[PT_XER] = rawregs->xer;
+  thread->mcontext.gp_regs[PT_CTR] = rawregs->ctr;
+  thread->mcontext.v_regs->vrsave = rawregs->vrsave;
+
+  for (int i = 0; i < MD_FLOATINGSAVEAREA_PPC_FPR_COUNT; i++)
+      thread->mcontext.fp_regs[i] = rawregs->float_save.fpregs[i];
+
+  thread->mcontext.fp_regs[NFPREG-1] = rawregs->float_save.fpscr;
+
+  for (int i = 0; i < MD_VECTORSAVEAREA_PPC_VR_COUNT; i++) {
+      thread->mcontext.v_regs->vrregs[i][0] = rawregs->vector_save.save_vr[i].high >> 32;
+      thread->mcontext.v_regs->vrregs[i][1] = rawregs->vector_save.save_vr[i].high;
+      thread->mcontext.v_regs->vrregs[i][2] = rawregs->vector_save.save_vr[i].low >> 32;
+      thread->mcontext.v_regs->vrregs[i][3] = rawregs->vector_save.save_vr[i].low;
+  }
+
+  thread->mcontext.v_regs->vscr.vscr_word = rawregs->vector_save.save_vscr.low & 0xFFFFFFFF;
+}
+
 #else
 #error "This code has not been ported to your platform yet"
 #endif
@@ -622,6 +661,12 @@ ParseSystemInfo(const Options& options, CrashedProcess* crashinfo,
 # else
 #  error "This mips ABI is currently not supported (n32)"
 # endif
+#elif defined(__powerpc64__)
+  if (sysinfo->processor_architecture != MD_CPU_ARCHITECTURE_PPC64) {
+    fprintf(stderr,
+            "This version of minidump-2-core only supports PPC64.\n");
+    exit(1);
+  }
 #else
 #error "This code has not been ported to your platform yet"
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/CONTRIBUTORS b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/CONTRIBUTORS
index 8724b7f32..8e29424ef 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/CONTRIBUTORS
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/CONTRIBUTORS
@@ -13,3 +13,4 @@ Mark Mentovai <mark@chromium.org>
 Robert Sesek <rsesek@chromium.org>
 Scott Graham <scottmg@chromium.org>
 Joshua Peraza <jperaza@chromium.org>
+Shawn Anastasio <shawn@anastas.io>
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/compat/linux/sys/user.h b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/compat/linux/sys/user.h
index 6ed77a98e..1fd83469a 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/compat/linux/sys/user.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/compat/linux/sys/user.h
@@ -15,6 +15,7 @@
 #ifndef CRASHPAD_COMPAT_LINUX_SYS_USER_H_
 #define CRASHPAD_COMPAT_LINUX_SYS_USER_H_
 
+#include <cstddef>
 #include_next <sys/user.h>
 
 #include <features.h>
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_context.h b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_context.h
index 3a3e603cb..3118d9e9f 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_context.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_context.h
@@ -592,6 +592,70 @@ struct MinidumpContextMIPS64 {
   uint64_t fir;
 };
 
+//! \brief ppc64-specific flags for MinidumpPPC64::context_flags
+//! Based on minidump_cpu_ppc64.h from breakpad
+enum MinidumpContextPPC64Flags : uint32_t {
+  //! \brief Identifies the context as PPC64.
+  kMinidumpContextPPC64 = 0x01000000,
+
+  //! \brief Indicates the validity of general purpose registers.
+  //!
+  //! Registers `r0`-`r31`, `nip`, `msr`, `lr`, etc. are valid.
+  kMinidumpContextPPC64Base = kMinidumpContextPPC64 | 0x00000001,
+
+  //! \brief Indicates the validity of floating point registers.
+  //!
+  //! Registers `fp0`-`fp31`, `fpscr` are valid.
+  kMinidumpContextPPC64Floating = kMinidumpContextPPC64 | 0x00000008,
+
+  //! \brief Indicates the validity of Altivec/VMX registers.
+  //!
+  //! Registers `v0`-`v31`, `vscr`, `vrsave`.
+  kMinidumpContextPPC64Vector = kMinidumpContextPPC64 | 0x00000020,
+
+  //! \brief Indicates the validity of all registers
+  kMinidumpContextPPC64All = kMinidumpContextPPC64Base     |
+                             kMinidumpContextPPC64Floating |
+                             kMinidumpContextPPC64Vector
+};
+
+//! \brief A PPC64 CPU context carried in a minidump file.
+//! Based on minidump_cpu_ppc64.h from breakpad.
+struct MinidumpContextPPC64 {
+  uint64_t context_flags;
+
+  //! \brief General purpose registers.
+  uint64_t nip;
+  uint64_t msr;
+  uint64_t regs[32];
+  uint64_t ccr;
+  uint64_t xer;
+  uint64_t lnk;
+  uint64_t ctr;
+
+  //! \brief Floating point registers.
+  double fpregs[32];
+
+  //! \brief FPU status register.
+  double fpscr;
+
+  //! \brief Altivec/VMX vector registers.
+  struct {
+      //! \brief Vector registers are 128bits.
+      uint128_struct save_vr[32];
+      uint128_struct save_vscr;
+
+      //! \brief Padding included for breakpad compatibiltiy.
+      uint32_t save_pad5[4];
+
+      //! \brief VRSAVE register.
+      uint32_t save_vrsave;
+
+      //! \brief Padding included for breakpad compatibiltiy.
+      uint32_t save_pad6[7];
+  } vregs;
+};
+
 }  // namespace crashpad
 
 #endif  // CRASHPAD_MINIDUMP_MINIDUMP_CONTEXT_H_
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_context_writer.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_context_writer.cc
index d7e53a493..d89eb9e01 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_context_writer.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_context_writer.cc
@@ -101,6 +101,13 @@ MinidumpContextWriter::CreateFromSnapshot(const CPUContext* context_snapshot) {
       break;
     }
 
+    case kCPUArchitecturePPC64: {
+      context = std::make_unique<MinidumpContextPPC64Writer>();
+      reinterpret_cast<MinidumpContextPPC64Writer*>(context.get())
+          ->InitalizeFromSnapshot(context_snapshot->ppc64);
+      break;
+    }
+
     default: {
       LOG(ERROR) << "unknown context architecture "
                  << context_snapshot->architecture;
@@ -453,4 +460,47 @@ size_t MinidumpContextMIPS64Writer::ContextSize() const {
   return sizeof(context_);
 }
 
+MinidumpContextPPC64Writer::MinidumpContextPPC64Writer()
+  : MinidumpContextWriter(), context_() {
+    context_.context_flags = kMinidumpContextPPC64;
+}
+
+MinidumpContextPPC64Writer::~MinidumpContextPPC64Writer() = default;
+
+void MinidumpContextPPC64Writer::InitalizeFromSnapshot(
+    const CPUContextPPC64* context_snapshot) {
+  DCHECK_EQ(state(), kStateMutable);
+  DCHECK_EQ(context_.context_flags, kMinidumpContextPPC64);
+
+  context_.context_flags = kMinidumpContextPPC64All;
+
+  memcpy(context_.regs, context_snapshot->regs, sizeof(context_.regs));
+  context_.nip = context_snapshot->nip;
+  context_.msr = context_snapshot->msr;
+  context_.ccr = context_snapshot->ccr;
+  context_.xer = context_snapshot->xer;
+  context_.lnk = context_snapshot->lnk;
+  context_.ctr = context_snapshot->ctr;
+
+  memcpy(context_.fpregs, context_snapshot->fpregs, sizeof(context_.fpregs));
+  context_.fpscr = context_snapshot->fpscr;
+
+  memcpy(context_.vregs.save_vr, context_snapshot->vregs.save_vr,
+         sizeof(context_.vregs.save_vr));
+  memcpy(&context_.vregs.save_vscr, &context_snapshot->vregs.save_vscr,
+         sizeof(context_.vregs.save_vscr));
+  context_.vregs.save_vrsave = context_snapshot->vregs.save_vrsave;
+}
+
+bool MinidumpContextPPC64Writer::WriteObject(
+    FileWriterInterface* file_writer) {
+  DCHECK_EQ(state(), kStateWritable);
+  return file_writer->Write(&context_, sizeof(context_));
+}
+
+size_t MinidumpContextPPC64Writer::ContextSize() const {
+  DCHECK_GE(state(), kStateFrozen);
+  return sizeof(context_);
+}
+
 }  // namespace crashpad
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_context_writer.h b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_context_writer.h
index d4ab936ee..1d22fc59c 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_context_writer.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_context_writer.h
@@ -315,6 +315,45 @@ class MinidumpContextMIPS64Writer final : public MinidumpContextWriter {
   DISALLOW_COPY_AND_ASSIGN(MinidumpContextMIPS64Writer);
 };
 
+class MinidumpContextPPC64Writer final : public MinidumpContextWriter {
+ public:
+  MinidumpContextPPC64Writer();
+  ~MinidumpContextPPC64Writer() override;
+
+  //! \brief Initalizes the MinidumpContextPPC64 based on \a context_snapshot.
+  //!
+  //! \param[in] context_snapshot The context snapshot to use as source data.
+  //!
+  //! \note Valid in #kStateMutable. No mutation of context() may be done before
+  //!     calling this method, and it is not normally necessary to alter
+  //!     context() after calling this method.
+  void InitalizeFromSnapshot(const CPUContextPPC64* context_snapshot);
+
+  //! \brief Returns a pointer to the context structure that this object will
+  //!     write.
+  //!
+  //! \attention This returns a non-`const` pointer to this object’s private
+  //!     data so that a caller can populate the context structure directly.
+  //!     This is done because providing setter interfaces to each field in the
+  //!     context structure would be unwieldy and cumbersome. Care must be taken
+  //!     to populate the context structure correctly. The context structure
+  //!     must only be modified while this object is in the #kStateMutable
+  //!     state.
+  MinidumpContextPPC64* context() { return &context_; }
+
+ protected:
+  // MinidumpWritable:
+  bool WriteObject(FileWriterInterface* file_writer) override;
+
+  // MinidumpContextWriter:
+  size_t ContextSize() const override;
+
+ private:
+  MinidumpContextPPC64 context_;
+
+  DISALLOW_COPY_AND_ASSIGN(MinidumpContextPPC64Writer);
+};
+
 }  // namespace crashpad
 
 #endif  // CRASHPAD_MINIDUMP_MINIDUMP_CONTEXT_WRITER_H_
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_context_writer_test.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_context_writer_test.cc
index 3216a906b..a9fcbe9d8 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_context_writer_test.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_context_writer_test.cc
@@ -213,6 +213,21 @@ TEST(MinidumpContextWriter, MIPS64_FromSnapshot) {
       context, ExpectMinidumpContextMIPS64, kSeed);
 }
 
+TEST(MinidumpContextWriter, PPC64_Zeros) {
+  EmptyContextTest<MinidumpContextPPC64Writer, MinidumpContextPPC64>(
+    ExpectMinidumpContextPPC64);
+}
+
+TEST(MinidumpContextWriter, PPC64_FromSnapshot) {
+  constexpr uint32_t kSeed = 64;
+  CPUContextPPC64 context_ppc64;
+  CPUContext context;
+  context.ppc64 = &context_ppc64;
+  InitializeCPUContextPPC64(&context, kSeed);
+  FromSnapshotTest<MinidumpContextPPC64Writer, MinidumpContextPPC64>(
+      context, ExpectMinidumpContextPPC64, kSeed);
+}
+
 }  // namespace
 }  // namespace test
 }  // namespace crashpad
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_misc_info_writer.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_misc_info_writer.cc
index a13407605..95dc92524 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_misc_info_writer.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/minidump/minidump_misc_info_writer.cc
@@ -126,6 +126,8 @@ std::string MinidumpMiscInfoDebugBuildString() {
   static constexpr char kCPU[] = "mips";
 #elif defined(ARCH_CPU_MIPS64EL)
   static constexpr char kCPU[] = "mips64";
+#elif defined(ARCH_CPU_PPC64)
+  static constexpr char kCPU[] = "ppc64";
 #else
 #error define kCPU for this CPU
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/capture_memory.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/capture_memory.cc
index a51626ccd..61e0b20a1 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/capture_memory.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/capture_memory.cc
@@ -111,6 +111,11 @@ void CaptureMemory::PointedToByContext(const CPUContext& context,
   for (size_t i = 0; i < base::size(context.mipsel->regs); ++i) {
     MaybeCaptureMemoryAround(delegate, context.mipsel->regs[i]);
   }
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+  MaybeCaptureMemoryAround(delegate, context.ppc64->nip);
+  for (size_t i = 0; i < base::size(context.ppc64->regs); ++i) {
+    MaybeCaptureMemoryAround(delegate, context.ppc64->regs[i]);
+  }
 #else
 #error Port.
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/cpu_architecture.h b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/cpu_architecture.h
index 811a72095..f4f83981d 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/cpu_architecture.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/cpu_architecture.h
@@ -43,7 +43,10 @@ enum CPUArchitecture {
   kCPUArchitectureMIPSEL,
 
   //! \brief 64-bit MIPSEL.
-  kCPUArchitectureMIPS64EL
+  kCPUArchitectureMIPS64EL,
+
+  //! \brief 64-bit PPC64.
+  kCPUArchitecturePPC64
 };
 
 }  // namespace crashpad
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/cpu_context.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/cpu_context.cc
index 6fb8d7e71..b01f7cad1 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/cpu_context.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/cpu_context.cc
@@ -169,6 +169,8 @@ uint64_t CPUContext::InstructionPointer() const {
       return arm->pc;
     case kCPUArchitectureARM64:
       return arm64->pc;
+    case kCPUArchitecturePPC64:
+      return ppc64->nip;
     default:
       NOTREACHED();
       return ~0ull;
@@ -185,6 +187,8 @@ uint64_t CPUContext::StackPointer() const {
       return arm->sp;
     case kCPUArchitectureARM64:
       return arm64->sp;
+    case kCPUArchitecturePPC64:
+      return ppc64->regs[1];
     default:
       NOTREACHED();
       return ~0ull;
@@ -196,6 +200,7 @@ bool CPUContext::Is64Bit() const {
     case kCPUArchitectureX86_64:
     case kCPUArchitectureARM64:
     case kCPUArchitectureMIPS64EL:
+    case kCPUArchitecturePPC64:
       return true;
     case kCPUArchitectureX86:
     case kCPUArchitectureARM:
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/cpu_context.h b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/cpu_context.h
index fb23c4679..eebede63c 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/cpu_context.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/cpu_context.h
@@ -352,6 +352,24 @@ struct CPUContextMIPS64 {
   uint64_t fir;
 };
 
+//! \brief A context structure carrying PPC64 CPU state.
+struct CPUContextPPC64 {
+  uint64_t nip;
+  uint64_t msr;
+  uint64_t regs[32];
+  uint64_t ccr;
+  uint64_t xer;
+  uint64_t lnk;
+  uint64_t ctr;
+  double fpregs[32];
+  double fpscr;
+  struct {
+    uint128_struct save_vr[32];
+    uint128_struct save_vscr;
+    uint32_t save_vrsave;
+  } vregs;
+};
+
 //! \brief A context structure capable of carrying the context of any supported
 //!     CPU architecture.
 struct CPUContext {
@@ -382,6 +400,7 @@ struct CPUContext {
     CPUContextARM64* arm64;
     CPUContextMIPS* mipsel;
     CPUContextMIPS64* mips64;
+    CPUContextPPC64* ppc64;
   };
 };
 
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/cpu_context_linux.h b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/cpu_context_linux.h
index 9f46a4897..aa677c4eb 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/cpu_context_linux.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/cpu_context_linux.h
@@ -15,6 +15,7 @@
 #ifndef CRASHPAD_SNAPSHOT_LINUX_CPU_CONTEXT_LINUX_H_
 #define CRASHPAD_SNAPSHOT_LINUX_CPU_CONTEXT_LINUX_H_
 
+#include <cstring>
 #include "build/build_config.h"
 #include "snapshot/cpu_context.h"
 #include "snapshot/linux/signal_context.h"
@@ -174,6 +175,78 @@ void InitializeCPUContextMIPS(
 
 #endif  // ARCH_CPU_MIPS_FAMILY || DOXYGEN
 
+#if defined(ARCH_CPU_PPC64_FAMILY) || DOXYGEN
+
+//! \brief Initalizes a CPUContextPPC64 structure from native context
+//!     structures on Linux.
+//!
+//! \param[in] thread_context The native thread context.
+//! \param[in] float_context The native float context.
+//! \param[in] vector_context The native vector context.
+//! \param[out] context The CPUContextPPC64 structure to initalize.
+template <typename Traits>
+void InitializeCPUContextPPC64(
+    const ThreadContext::t64_t& thread_context,
+    const FloatContext::f64_t& float_context,
+    const VectorContext::v64_t& vector_context,
+    typename Traits::CPUContext* context) {
+
+  memcpy(context->regs, thread_context.gpr, sizeof(context->regs));
+  context->nip = thread_context.nip;
+  context->msr = thread_context.msr;
+  context->ccr = thread_context.ccr;
+  context->xer = thread_context.xer;
+  context->lnk = thread_context.lnk;
+  context->ctr = thread_context.ctr;
+
+  memcpy(context->fpregs, float_context.fpregs, sizeof(context->fpregs));
+  context->fpscr = float_context.fpscr;
+
+  for (uint8_t i = 0; i < 32; i++) {
+    context->vregs.save_vr[i] = {
+      (((uint64_t)vector_context.vrregs[i][0]) << 32) |
+        vector_context.vrregs[i][1],
+      (((uint64_t)vector_context.vrregs[i][2]) << 32) |
+        vector_context.vrregs[i][3]
+    };
+  }
+  context->vregs.save_vrsave = vector_context.vrsave;
+  context->vregs.save_vscr = {0, (uint64_t)vector_context.vscr.vscr_word};
+}
+
+template <typename Traits>
+void InitializeCPUContextPPC64(
+    const SignalThreadContext64 &thread_context,
+    const SignalFloatContext64 &float_context,
+    const SignalVectorContext64 &vector_context,
+    typename Traits::CPUContext* context) {
+
+  memcpy(context->regs, thread_context.regs, sizeof(context->regs));
+  context->nip = thread_context.nip;
+  context->msr = thread_context.msr;
+  context->ccr = thread_context.ccr;
+  context->xer = thread_context.xer;
+  context->lnk = thread_context.lnk;
+  context->ctr = thread_context.ctr;
+
+  memcpy(context->fpregs, float_context.regs, sizeof(context->fpregs));
+  context->fpscr = float_context.fpscr;
+
+  for (uint8_t i = 0; i < 32; i++) {
+    context->vregs.save_vr[i] = {
+      (((uint64_t)vector_context.vrregs[i][0]) << 32) |
+        vector_context.vrregs[i][1],
+      (((uint64_t)vector_context.vrregs[i][2]) << 32) |
+        vector_context.vrregs[i][3]
+    };
+  }
+  context->vregs.save_vrsave = vector_context.vrsave;
+  context->vregs.save_vscr = {0, (uint64_t)vector_context.vscr.vscr_word};
+}
+
+
+#endif
+
 }  // namespace internal
 }  // namespace crashpad
 
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/debug_rendezvous_test.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/debug_rendezvous_test.cc
index be22c9031..c5df23d1b 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/debug_rendezvous_test.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/debug_rendezvous_test.cc
@@ -159,9 +159,11 @@ void TestAgainstTarget(PtraceConnection* connection) {
           const bool is_vdso_mapping =
               device == 0 && inode == 0 && mapping_name == "[vdso]";
           static constexpr char kPrefix[] = "linux-vdso.so.";
+          static constexpr char kPrefix64[] = "linux-vdso64.so.";
           return is_vdso_mapping ==
                  (module_name.empty() ||
-                  module_name.compare(0, strlen(kPrefix), kPrefix) == 0);
+                  module_name.compare(0, strlen(kPrefix), kPrefix) == 0 ||
+                  module_name.compare(0, strlen(kPrefix64), kPrefix64) == 0);
         },
         module_mapping->name,
         module_mapping->device,
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/exception_snapshot_linux.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/exception_snapshot_linux.cc
index cd40b3b12..6bcf23b6f 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/exception_snapshot_linux.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/exception_snapshot_linux.cc
@@ -323,6 +323,69 @@ bool ExceptionSnapshotLinux::ReadContext<ContextTraits64>(
       reader, context_address, context_.mips64);
 }
 
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+
+template <typename Traits>
+static bool ReadContext(ProcessReaderLinux* reader,
+                        LinuxVMAddress context_address,
+                        typename Traits::CPUContext* dest_context) {
+  const ProcessMemory* memory = reader->Memory();
+
+  LinuxVMAddress gp_regs_address = context_address +
+                                   offsetof(UContext, mcontext) +
+                                   offsetof(typename Traits::MContext, gp_regs);
+
+  typename Traits::SignalThreadContext thread_context;
+  if (!memory->Read(gp_regs_address, sizeof(thread_context), &thread_context)) {
+    LOG(ERROR) << "Couldn't read gp_regs!";
+    return false;
+  }
+
+  LinuxVMAddress fp_regs_address = context_address +
+                                   offsetof(UContext, mcontext) +
+                                   offsetof(typename Traits::MContext, fp_regs);
+
+  typename Traits::SignalFloatContext fp_context;
+  if (!memory->Read(fp_regs_address, sizeof(fp_context), &fp_context)) {
+    LOG(ERROR) << "Couldn't read fp_regs!";
+    return false;
+  }
+
+  LinuxVMAddress v_regs_ptr_address = context_address +
+                                  offsetof(UContext, mcontext) +
+                                  offsetof(typename Traits::MContext, vmx_reserve) + 8;
+
+  typename Traits::SignalVectorContext v_context;
+  if (!memory->Read(v_regs_ptr_address, sizeof(v_context), &v_context)) {
+    LOG(ERROR) << "Couldn't read v_regs!";
+    return false;
+  }
+
+  InitializeCPUContextPPC64<ContextTraits64>(thread_context, fp_context,
+                            v_context, dest_context);
+
+  return true;
+}
+
+template<>
+bool ExceptionSnapshotLinux::ReadContext<ContextTraits64>(
+    ProcessReaderLinux* reader,
+    LinuxVMAddress context_address) {
+  context_.architecture = kCPUArchitecturePPC64;
+  context_.ppc64 = &context_union_.ppc64;
+
+  return internal::ReadContext<ContextTraits64>(
+      reader, context_address, context_.ppc64);
+}
+
+template<>
+bool ExceptionSnapshotLinux::ReadContext<ContextTraits32>(
+    ProcessReaderLinux* reader,
+    LinuxVMAddress context_address) {
+  // PPC64 is 64-bit
+  return false;
+}
+
 #endif  // ARCH_CPU_X86_FAMILY
 
 bool ExceptionSnapshotLinux::Initialize(ProcessReaderLinux* process_reader,
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/exception_snapshot_linux.h b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/exception_snapshot_linux.h
index ea0cd2106..e42df520f 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/exception_snapshot_linux.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/exception_snapshot_linux.h
@@ -84,6 +84,8 @@ class ExceptionSnapshotLinux final : public ExceptionSnapshot {
 #elif defined(ARCH_CPU_MIPS_FAMILY)
     CPUContextMIPS mipsel;
     CPUContextMIPS64 mips64;
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+    CPUContextPPC64 ppc64;
 #endif
   } context_union_;
   CPUContext context_;
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/exception_snapshot_linux_test.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/exception_snapshot_linux_test.cc
index e4ff1ab79..25534dd08 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/exception_snapshot_linux_test.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/exception_snapshot_linux_test.cc
@@ -296,7 +296,28 @@ void ExpectContext(const CPUContext& actual, const NativeCPUContext& expected) {
             0);
 #undef CPU_ARCH_NAME
 }
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+using NativeCPUContext = ucontext_t;
+
+void InitializeContext(NativeCPUContext* context) {
+  for (size_t reg = 0; reg < 32; ++reg) {
+    context->uc_mcontext.gp_regs[reg] = reg;
+  }
+
+  memset(&context->uc_mcontext.fp_regs, 44,
+      sizeof(context->uc_mcontext.fp_regs));
+}
 
+void ExpectContext(const CPUContext& actual, const NativeCPUContext& expected) {
+  EXPECT_EQ(actual.architecture, kCPUArchitecturePPC64);
+
+  for (size_t reg = 0; reg < 32; ++reg) {
+    EXPECT_EQ(actual.ppc64->regs[reg], expected.uc_mcontext.gp_regs[reg]);
+  }
+
+  EXPECT_EQ(memcmp(actual.ppc64->fpregs, expected.uc_mcontext.fp_regs,
+            sizeof(actual.ppc64->fpregs)), 0);
+}
 #else
 #error Port.
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/process_reader_linux.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/process_reader_linux.cc
index b96abfe74..df12ca566 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/process_reader_linux.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/process_reader_linux.cc
@@ -108,6 +108,8 @@ void ProcessReaderLinux::Thread::InitializeStack(ProcessReaderLinux* reader) {
 #elif defined(ARCH_CPU_MIPS_FAMILY)
   stack_pointer = reader->Is64Bit() ? thread_info.thread_context.t64.regs[29]
                                     : thread_info.thread_context.t32.regs[29];
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+  stack_pointer = thread_info.thread_context.t64.gpr[1];
 #else
 #error Port.
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/process_reader_linux_test.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/process_reader_linux_test.cc
index 5b5723616..049c32858 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/process_reader_linux_test.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/process_reader_linux_test.cc
@@ -612,6 +612,8 @@ bool WriteTestModule(const base::FilePath& module_path) {
   module.ehdr.e_machine = EM_AARCH64;
 #elif defined(ARCH_CPU_MIPSEL) || defined(ARCH_CPU_MIPS64EL)
   module.ehdr.e_machine = EM_MIPS;
+#elif defined(ARCH_CPU_PPC64)
+  module.ehdr.e_machine = EM_PPC64;
 #endif
 
   module.ehdr.e_version = EV_CURRENT;
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/signal_context.h b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/signal_context.h
index 110024680..a1f2da259 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/signal_context.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/signal_context.h
@@ -422,6 +422,89 @@ static_assert(offsetof(UContext<ContextTraits64>, mcontext.fpregs) ==
               "context offset mismatch");
 #endif
 
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+
+struct SignalThreadContext64 {
+  uint64_t regs[32];
+  uint64_t nip;
+  uint64_t msr;
+  uint64_t orig_r3;
+  uint64_t ctr;
+  uint64_t lnk;
+  uint64_t xer;
+  uint64_t ccr;
+  uint64_t softe;
+  uint64_t trap;
+  uint64_t dar;
+  uint64_t dsisr;
+  uint64_t result;
+  uint64_t dscr;
+  uint64_t fpr0[3];
+};
+
+struct SignalFloatContext64 {
+  double regs[32];
+  double fpscr;
+};
+
+struct SignalVectorContext64 {
+  int32_t vrregs[32][4];
+  struct {
+    int32_t __pad[3];
+    int32_t vscr_word;
+  } vscr;
+  int32_t vrsave;
+  int32_t __pad[3];
+} __attribute__((__aligned__(16)));
+
+
+#pragma pack(pop)
+struct MContext64 {
+  uint64_t reserved[4];
+  int32_t signal;
+  int32_t __pad0;
+  uint64_t handler;
+  uint64_t oldmask;
+  uint64_t pt_regs_ptr;
+  SignalThreadContext64 gp_regs;
+  SignalFloatContext64  fp_regs;
+  SignalVectorContext64 *v_regs;
+  int64_t vmx_reserve[69];
+};
+
+struct ContextTraits64 : public Traits64 {
+  using MContext = MContext64;
+  using SignalThreadContext = SignalThreadContext64;
+  using SignalFloatContext = SignalFloatContext64;
+  using SignalVectorContext = SignalVectorContext64;
+  using CPUContext = CPUContextPPC64;
+};
+
+struct ContextTraits32 : public Traits32 {};
+
+struct UContext {
+  uint64_t flags;
+  uint64_t link;
+  SignalStack<ContextTraits64> stack;
+  Sigset<ContextTraits64> sigmask;
+  MContext64 mcontext;
+};
+#pragma pack(push, 1)
+
+static_assert(sizeof(UContext) == sizeof(ucontext_t),
+              "ucontext_t size mismatch");
+static_assert(sizeof(MContext64) == sizeof(mcontext_t),
+              "mcontext_t size mismatch");
+static_assert(sizeof(SignalThreadContext64) == sizeof(gregset_t),
+              "gregset_t size mismatch");
+static_assert(sizeof(SignalFloatContext64) == sizeof(fpregset_t),
+              "fpregset_t size mismatch");
+static_assert(sizeof(SignalVectorContext64) == sizeof(vrregset_t),
+              "vrregset_t size mismatch");
+static_assert(offsetof(UContext, mcontext) ==
+              offsetof(ucontext_t, uc_mcontext), "mcontext offset mismatch");
+static_assert(offsetof(MContext64, gp_regs) ==
+              offsetof(mcontext_t, gp_regs), "gp_regs offset mismatch");
 #else
 #error Port.
 #endif  // ARCH_CPU_X86_FAMILY
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/system_snapshot_linux.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/system_snapshot_linux.cc
index 8564d3d45..b690ecd48 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/system_snapshot_linux.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/system_snapshot_linux.cc
@@ -203,6 +203,8 @@ CPUArchitecture SystemSnapshotLinux::GetCPUArchitecture() const {
 #elif defined(ARCH_CPU_MIPS_FAMILY)
   return process_reader_->Is64Bit() ? kCPUArchitectureMIPS64EL
                                     : kCPUArchitectureMIPSEL;
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+  return kCPUArchitecturePPC64;
 #else
 #error port to your architecture
 #endif
@@ -218,6 +220,9 @@ uint32_t SystemSnapshotLinux::CPURevision() const {
 #elif defined(ARCH_CPU_MIPS_FAMILY)
   // Not implementable on MIPS
   return 0;
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+  // Not yet implemented on PPC64
+  return 0;
 #else
 #error port to your architecture
 #endif
@@ -238,6 +243,9 @@ std::string SystemSnapshotLinux::CPUVendor() const {
 #elif defined(ARCH_CPU_MIPS_FAMILY)
   // Not implementable on MIPS
   return std::string();
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+  // Not yet implemented on PPC64
+  return std::string();
 #else
 #error port to your architecture
 #endif
@@ -371,6 +379,9 @@ bool SystemSnapshotLinux::NXEnabled() const {
 #elif defined(ARCH_CPU_MIPS_FAMILY)
   // Not implementable on MIPS
   return false;
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+  // Not yet implemented on PPC64
+  return false;
 #else
 #error Port.
 #endif  // ARCH_CPU_X86_FAMILY
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/thread_snapshot_linux.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/thread_snapshot_linux.cc
index e3e2bebdd..8ef43752e 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/thread_snapshot_linux.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/thread_snapshot_linux.cc
@@ -186,6 +186,14 @@ bool ThreadSnapshotLinux::Initialize(ProcessReaderLinux* process_reader,
         thread.thread_info.float_context.f32,
         context_.mipsel);
   }
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+  context_.architecture = kCPUArchitecturePPC64;
+  context_.ppc64 = &context_union_.ppc64;
+  InitializeCPUContextPPC64<ContextTraits64>(
+      thread.thread_info.thread_context.t64,
+      thread.thread_info.float_context.f64,
+      thread.thread_info.vector_context.v64,
+      context_.ppc64);
 #else
 #error Port.
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/thread_snapshot_linux.h b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/thread_snapshot_linux.h
index 44cc6f6d9..d4136461e 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/thread_snapshot_linux.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/snapshot/linux/thread_snapshot_linux.h
@@ -68,6 +68,8 @@ class ThreadSnapshotLinux final : public ThreadSnapshot {
 #elif defined(ARCH_CPU_MIPS_FAMILY)
     CPUContextMIPS mipsel;
     CPUContextMIPS64 mips64;
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+    CPUContextPPC64 ppc64;
 #else
 #error Port.
 #endif  // ARCH_CPU_X86_FAMILY
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/linux/auxiliary_vector.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/linux/auxiliary_vector.cc
index d3d5ebdfb..3fd730cb5 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/linux/auxiliary_vector.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/linux/auxiliary_vector.cc
@@ -56,6 +56,11 @@ bool AuxiliaryVector::Read(PtraceConnection* connection) {
     if (type == AT_IGNORE) {
       continue;
     }
+#if defined(ARCH_CPU_PPC64_FAMILY)
+    if (type == AT_IGNOREPPC) {
+      continue;
+    }
+#endif
     if (!MapInsertOrReplace(&values_, type, value, nullptr)) {
       LOG(ERROR) << "duplicate auxv entry";
       return false;
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/linux/ptrace_broker.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/linux/ptrace_broker.cc
index 155a1e0c6..5e50ceb5f 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/linux/ptrace_broker.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/linux/ptrace_broker.cc
@@ -94,8 +94,8 @@ int PtraceBroker::Run() {
 }
 
 bool PtraceBroker::AllocateAttachments() {
-  constexpr size_t page_size = 4096;
-  constexpr size_t alloc_size =
+  static size_t page_size = getpagesize();
+  size_t alloc_size =
       (sizeof(ScopedPtraceAttach) + page_size - 1) & ~(page_size - 1);
   void* alloc = sbrk(alloc_size);
   if (reinterpret_cast<intptr_t>(alloc) == -1) {
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/linux/ptracer.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/linux/ptracer.cc
index 557e0d363..08ae434b8 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/linux/ptracer.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/linux/ptracer.cc
@@ -398,6 +398,64 @@ bool GetThreadArea64(pid_t tid,
   return true;
 }
 
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+// PPC64 has had HAVE_ARCH_TRACEHOOK set since 2.6.27 (even before x86 had it).
+// That means we can simply use PTRACE_GETREGESET.
+
+template <typename Destination>
+bool GetRegisterSet(pid_t tid, int set, Destination* dest, bool can_log) {
+  iovec iov;
+  iov.iov_base = reinterpret_cast<void*>(dest);
+  iov.iov_len = sizeof(*dest);
+  if (ptrace(PTRACE_GETREGSET, tid, reinterpret_cast<void*>(set), &iov) != 0) {
+    PLOG_IF(ERROR, can_log) << "ptrace";
+    return false;
+  }
+  if (iov.iov_len != sizeof(*dest)) {
+    LOG_IF(ERROR, can_log) << "Unexpected registers size";
+    return false;
+  }
+  return true;
+}
+
+bool GetVectorRegisters64(pid_t tid,
+                          VectorContext* context,
+                          bool can_log) {
+  return GetRegisterSet(tid, NT_PPC_VMX, &context->v64, can_log);
+}
+
+bool GetFloatingPointRegisters64(pid_t tid,
+                                 FloatContext* context,
+                                 bool can_log) {
+  return GetRegisterSet(tid, NT_PRFPREG, &context->f64, can_log);
+}
+
+bool GetThreadArea64(pid_t tid,
+                     const ThreadContext& context,
+                     LinuxVMAddress* address,
+                     bool can_log) {
+  // PPC64 doesn't have PTRACE_GET_THREAD_AREA since the thread pointer
+  // is stored in GPR 13.
+  ThreadContext::t64_t tc;
+  if (!GetRegisterSet(tid, NT_PRSTATUS, &tc, can_log)) {
+    LOG_IF(ERROR, can_log) << "Unable to get thread pointer!";
+    return false;
+  }
+
+  *address = tc.gpr[13];
+
+  return true;
+}
+
+// Stubs for 32-bit functions not applicable on PPC64
+bool GetFloatingPointRegisters32(pid_t tid,
+                                 FloatContext* context,
+                                 bool can_log) { return false; }
+bool GetThreadArea32(pid_t tid,
+                     const ThreadContext &context,
+                     LinuxVMAddress *address,
+                     bool can_log) { return false; }
+
 #else
 #error Port.
 #endif  // ARCH_CPU_X86_FAMILY
@@ -494,6 +552,9 @@ bool Ptracer::GetThreadInfo(pid_t tid, ThreadInfo* info) {
   if (is_64_bit_) {
     return GetGeneralPurposeRegisters64(tid, &info->thread_context, can_log_) &&
            GetFloatingPointRegisters64(tid, &info->float_context, can_log_) &&
+#if defined(ARCH_CPU_PPC64_FAMILY)
+           GetVectorRegisters64(tid, &info->vector_context, can_log_) &&
+#endif
            GetThreadArea64(tid,
                            info->thread_context,
                            &info->thread_specific_data_address,
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/linux/thread_info.h b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/linux/thread_info.h
index 5b55c24a7..dea0d1f39 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/linux/thread_info.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/linux/thread_info.h
@@ -28,6 +28,10 @@
 #include <android/api-level.h>
 #endif
 
+#if defined(ARCH_CPU_PPC64_FAMILY)
+#include <sys/ucontext.h>
+#endif
+
 namespace crashpad {
 
 //! \brief The set of general purpose registers for an architecture family.
@@ -79,6 +83,8 @@ union ThreadContext {
     uint32_t cp0_status;
     uint32_t cp0_cause;
     uint32_t padding1_;
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+    // PPC64 is 64-bit
 #else
 #error Port.
 #endif  // ARCH_CPU_X86_FAMILY
@@ -132,6 +138,21 @@ union ThreadContext {
     uint64_t cp0_badvaddr;
     uint64_t cp0_status;
     uint64_t cp0_cause;
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+    // Reflects struct pt_regs in asm/ptrace.h.
+    uint64_t gpr[32];
+    uint64_t nip;
+    uint64_t msr;
+    uint64_t orig_gpr3;
+    uint64_t ctr;
+    uint64_t lnk;
+    uint64_t xer;
+    uint64_t ccr;
+    uint64_t softe;
+    uint64_t trap;
+    uint64_t dar;
+    uint64_t dsisr;
+    uint64_t result;
 #else
 #error Port.
 #endif  // ARCH_CPU_X86_FAMILY
@@ -143,6 +164,8 @@ union ThreadContext {
   using NativeThreadContext = user_regs;
 #elif defined(ARCH_CPU_MIPS_FAMILY)
 // No appropriate NativeThreadsContext type available for MIPS
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+  using NativeThreadContext = struct pt_regs;
 #else
 #error Port.
 #endif  // ARCH_CPU_X86_FAMILY || ARCH_CPU_ARM64
@@ -218,6 +241,9 @@ union FloatContext {
     } fpregs[32];
     uint32_t fpcsr;
     uint32_t fpu_id;
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+    // Crashpad's PPC support is 64-bit only, so this
+    // 32bit-only struct is declared as empty.
 #else
 #error Port.
 #endif  // ARCH_CPU_X86_FAMILY
@@ -252,6 +278,10 @@ union FloatContext {
     double fpregs[32];
     uint32_t fpcsr;
     uint32_t fpu_id;
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+    // Reflects fpregset_t in sys/ucontext.h
+    double fpregs[32];
+    double fpscr;
 #else
 #error Port.
 #endif  // ARCH_CPU_X86_FAMILY
@@ -280,6 +310,8 @@ union FloatContext {
   static_assert(sizeof(f64) == sizeof(user_fpsimd_struct), "Size mismatch");
 #elif defined(ARCH_CPU_MIPS_FAMILY)
 // No appropriate floating point context native type for available MIPS.
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+  static_assert(sizeof(f64) == sizeof(fpregset_t), "Size mismatch");
 #else
 #error Port.
 #endif  // ARCH_CPU_X86
@@ -287,6 +319,26 @@ union FloatContext {
 static_assert(std::is_standard_layout<FloatContext>::value,
               "Not standard layout");
 
+//! \brief The vector registers used for an architecture family
+union VectorContext {
+  struct v32_t {} v32;
+#if defined(ARCH_CPU_PPC64_FAMILY)
+  __attribute__((__aligned__(16))) // Vector context must be doubleword aligned.
+#endif
+  struct v64_t {
+#if defined(ARCH_CPU_PPC64_FAMILY)
+    // Reflects vrregset_t in sys/ucontext.h
+    uint32_t vrregs[32][4];
+    struct {
+      uint32_t __pad[3];
+      uint32_t vscr_word;
+    } vscr;
+    uint32_t vrsave;
+    uint32_t __pad[3];
+#endif
+  } v64;
+};
+
 //! \brief A collection of `ptrace`-able information about a thread.
 struct ThreadInfo {
   ThreadInfo();
@@ -298,6 +350,9 @@ struct ThreadInfo {
   //! \brief The floating point registers for the thread.
   FloatContext float_context;
 
+  //! \brief (Optional) The vector registers used for the thread.
+  VectorContext vector_context;
+
   //! \brief The thread-local storage address for the thread.
   LinuxVMAddress thread_specific_data_address;
 };
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/misc/capture_context.h b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/misc/capture_context.h
index a88a10336..b0d6578bd 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/misc/capture_context.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/misc/capture_context.h
@@ -70,6 +70,7 @@ using NativeCPUContext = ucontext_t;
 //!     macOS/Linux/Fuchsia | x86_64       | `%%rdi`
 //!     Linux               | ARM/ARM64    | `r0`/`x0`
 //!     Linux               | MIPS/MIPS64  | `$a0`
+//!     Linux               | PPC64        | `r3`
 //!
 //!     Additionally, the value `LR` on ARM/ARM64 will be the return address of
 //!     this function.
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/misc/capture_context_linux.S b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/misc/capture_context_linux.S
index 52215ee5d..b3e4a3ec7 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/misc/capture_context_linux.S
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/misc/capture_context_linux.S
@@ -32,7 +32,7 @@
   .balign 4, 0x0
   .type CAPTURECONTEXT_SYMBOL, %function
   .type CAPTURECONTEXT_SYMBOL2, %function
-#elif defined(__mips__)
+#elif defined(__mips__) || defined(__powerpc64__)
   .balign 4, 0x0
 #endif
 
@@ -423,4 +423,214 @@ CAPTURECONTEXT_SYMBOL2:
   jr $ra
 
   .set at
+#elif defined(__powerpc64__)
+  // Store r0-r31
+  std 0, 0xe8(3)   // context->uc_mcontext.gp_regs[0]
+  std 1, 0xf0(3)   // context->uc_mcontext.gp_regs[1]
+  std 2, 0xf8(3)   // context->uc_mcontext.gp_regs[2]
+  // note that r3's original value was lost
+  std 3, 0x100(3)  // context->uc_mcontext.gp_regs[3]
+  std 4, 0x108(3)  // context->uc_mcontext.gp_regs[4]
+  std 5, 0x110(3)  // context->uc_mcontext.gp_regs[5]
+  std 6, 0x118(3)  // context->uc_mcontext.gp_regs[6]
+  std 7, 0x120(3)  // context->uc_mcontext.gp_regs[7]
+  std 8, 0x128(3)  // context->uc_mcontext.gp_regs[8]
+  std 9, 0x130(3)  // context->uc_mcontext.gp_regs[9]
+  std 10, 0x138(3) // context->uc_mcontext.gp_regs[10]
+  std 11, 0x140(3) // context->uc_mcontext.gp_regs[11]
+  std 12, 0x148(3) // context->uc_mcontext.gp_regs[12]
+  std 13, 0x150(3) // context->uc_mcontext.gp_regs[13]
+  std 14, 0x158(3) // context->uc_mcontext.gp_regs[14]
+  std 15, 0x160(3) // context->uc_mcontext.gp_regs[15]
+  std 16, 0x168(3) // context->uc_mcontext.gp_regs[16]
+  std 17, 0x170(3) // context->uc_mcontext.gp_regs[17]
+  std 18, 0x178(3) // context->uc_mcontext.gp_regs[18]
+  std 19, 0x180(3) // context->uc_mcontext.gp_regs[19]
+  std 20, 0x188(3) // context->uc_mcontext.gp_regs[20]
+  std 21, 0x190(3) // context->uc_mcontext.gp_regs[21]
+  std 22, 0x198(3) // context->uc_mcontext.gp_regs[22]
+  std 23, 0x1a0(3) // context->uc_mcontext.gp_regs[23]
+  std 24, 0x1a8(3) // context->uc_mcontext.gp_regs[24]
+  std 25, 0x1b0(3) // context->uc_mcontext.gp_regs[25]
+  std 26, 0x1b8(3) // context->uc_mcontext.gp_regs[26]
+  std 27, 0x1c0(3) // context->uc_mcontext.gp_regs[27]
+  std 28, 0x1c8(3) // context->uc_mcontext.gp_regs[28]
+  std 29, 0x1d0(3) // context->uc_mcontext.gp_regs[29]
+  std 30, 0x1d8(3) // context->uc_mcontext.gp_regs[30]
+  std 31, 0x1e0(3) // context->uc_mcontext.gp_regs[31]
+
+  // For NIP, we can use the value in the link register
+  mflr 0
+  std 0, 0x1e8(3) // context->uc_mcontext.gp_regs[PT_NIP]
+
+  // CTR
+  mfctr 0
+  std 0, 0x200(3) // context->uc_mcontext.gp_regs[PT_CTR]
+
+  // For LNK, we'll use the caller's LR save area (2 stack frames up).
+  // r4 can be used as a scratch register since it has already been saved.
+  ld 4, 0(1)
+  ld 4, 16(4)
+  std 4, 0x208(3) // context->uc_mcontext.gp_regs[PT_LNK]
+
+  // XER
+  mfxer 0
+  std 0, 0x210(3) // context->uc_mcontext.gp_regs[PT_XER]
+
+  // CCR
+  mfcr 0
+  std 0, 0x218(3) // context->uc_mcontext.gp_regs[PT_CCR]
+
+  // MSR, orig_r3, MQ, TRAP, DAR, DSISR, RESULT, DSCR,
+  // not used or not relevant,  zero them out.
+  li 4, 0
+  std 4, 0x1f0(3) // context->uc_mcontext.gp_regs[PT_MSR]
+  std 4, 0x1f8(3) // context->uc_mcontext.gp_regs[PT_ORIG_R3]
+  std 4, 0x220(3) // context->uc_mcontext.gp_regs[PT_MQ]
+  std 4, 0x228(3) // context->uc_mcontext.gp_regs[PT_TRAP]
+  std 4, 0x230(3) // context->uc_mcontext.gp_regs[PT_DAR]
+  std 4, 0x238(3) // context->uc_mcontext.gp_regs[PT_DSISR]
+  std 4, 0x240(3) // context->uc_mcontext.gp_regs[PT_RESULT]
+  std 4, 0x248(3) // context->uc_mcontext.gp_regs[PT_DSCR]
+
+  // Update context->uc_mcontext.regs to point to gp_regs
+  addi 0, 3, 0xe8
+  std 0, 0xe0(3)
+
+  // Save floating point registers 0-31
+  stfd 0, 0x268(3)  // context->uc_mcontext.fp_regs[0]
+  stfd 1, 0x270(3)  // context->uc_mcontext.fp_regs[1]
+  stfd 2, 0x278(3)  // context->uc_mcontext.fp_regs[2]
+  stfd 3, 0x280(3)  // context->uc_mcontext.fp_regs[3]
+  stfd 4, 0x288(3)  // context->uc_mcontext.fp_regs[4]
+  stfd 5, 0x290(3)  // context->uc_mcontext.fp_regs[5]
+  stfd 6, 0x298(3)  // context->uc_mcontext.fp_regs[6]
+  stfd 7, 0x2a0(3)  // context->uc_mcontext.fp_regs[7]
+  stfd 8, 0x2a8(3)  // context->uc_mcontext.fp_regs[8]
+  stfd 9, 0x2b0(3)  // context->uc_mcontext.fp_regs[9]
+  stfd 10, 0x2b8(3) // context->uc_mcontext.fp_regs[10]
+  stfd 11, 0x2c0(3) // context->uc_mcontext.fp_regs[11]
+  stfd 12, 0x2c8(3) // context->uc_mcontext.fp_regs[12]
+  stfd 13, 0x2d0(3) // context->uc_mcontext.fp_regs[13]
+  stfd 14, 0x2d8(3) // context->uc_mcontext.fp_regs[14]
+  stfd 15, 0x2e0(3) // context->uc_mcontext.fp_regs[15]
+  stfd 16, 0x2e8(3) // context->uc_mcontext.fp_regs[16]
+  stfd 17, 0x2f0(3) // context->uc_mcontext.fp_regs[17]
+  stfd 18, 0x2f8(3) // context->uc_mcontext.fp_regs[18]
+  stfd 19, 0x300(3) // context->uc_mcontext.fp_regs[19]
+  stfd 20, 0x308(3) // context->uc_mcontext.fp_regs[20]
+  stfd 21, 0x310(3) // context->uc_mcontext.fp_regs[21]
+  stfd 22, 0x318(3) // context->uc_mcontext.fp_regs[22]
+  stfd 23, 0x320(3) // context->uc_mcontext.fp_regs[23]
+  stfd 24, 0x328(3) // context->uc_mcontext.fp_regs[24]
+  stfd 25, 0x330(3) // context->uc_mcontext.fp_regs[25]
+  stfd 26, 0x338(3) // context->uc_mcontext.fp_regs[26]
+  stfd 27, 0x340(3) // context->uc_mcontext.fp_regs[27]
+  stfd 28, 0x348(3) // context->uc_mcontext.fp_regs[28]
+  stfd 29, 0x350(3) // context->uc_mcontext.fp_regs[29]
+  stfd 30, 0x358(3) // context->uc_mcontext.fp_regs[30]
+  stfd 31, 0x360(3) // context->uc_mcontext.fp_regs[31]
+
+  // FPSCR
+  mffs 0
+  stfd 0, 0x368(3) // context->uc_mcontext.fp_regs[32]
+
+  // Save VMX Vector registers
+  // Update r4 to contain the base address of vmx_reserve
+  addi 4, 3, 0x378
+  // Ensure that it is quadword aligned
+  andi. 5, 4, 0xF
+  beq 1f // No alignment is necessary
+  // Address is doubleword aligned and not quadword aligned, add 8
+  addi 4, 4, 8
+
+1:
+  // Store VMX registers 0-31
+  // r4 will contain the base address
+  // r5 will contain the index
+  li 5, 0
+  stvx 0, 4, 5   // context->uc_mcontext.vmx_reserve[(align) + 0]
+  addi 5, 5, 16
+  stvx 1, 4, 5   // context->uc_mcontext.vmx_reserve[(align) + 1]
+  addi 5, 5, 16
+  stvx 2, 4, 5   // context->uc_mcontext.vmx_reserve[(align) + 2]
+  addi 5, 5, 16
+  stvx 3, 4, 5   // context->uc_mcontext.vmx_reserve[(align) + 3]
+  addi 5, 5, 16
+  stvx 4, 4, 5   // context->uc_mcontext.vmx_reserve[(align) + 4]
+  addi 5, 5, 16
+  stvx 5, 4, 5   // context->uc_mcontext.vmx_reserve[(align) + 5]
+  addi 5, 5, 16
+  stvx 6, 4, 5   // context->uc_mcontext.vmx_reserve[(align) + 6]
+  addi 5, 5, 16
+  stvx 7, 4, 5   // context->uc_mcontext.vmx_reserve[(align) + 7]
+  addi 5, 5, 16
+  stvx 8, 4, 5   // context->uc_mcontext.vmx_reserve[(align) + 8]
+  addi 5, 5, 16
+  stvx 9, 4, 5   // context->uc_mcontext.vmx_reserve[(align) + 9]
+  addi 5, 5, 16
+  stvx 10, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 10]
+  addi 5, 5, 16
+  stvx 11, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 11]
+  addi 5, 5, 16
+  stvx 12, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 12]
+  addi 5, 5, 16
+  stvx 13, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 13]
+  addi 5, 5, 16
+  stvx 14, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 14]
+  addi 5, 5, 16
+  stvx 15, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 15]
+  addi 5, 5, 16
+  stvx 16, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 16]
+  addi 5, 5, 16
+  stvx 17, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 17]
+  addi 5, 5, 16
+  stvx 18, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 18]
+  addi 5, 5, 16
+  stvx 19, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 19]
+  addi 5, 5, 16
+  stvx 20, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 20]
+  addi 5, 5, 16
+  stvx 21, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 21]
+  addi 5, 5, 16
+  stvx 22, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 22]
+  addi 5, 5, 16
+  stvx 23, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 23]
+  addi 5, 5, 16
+  stvx 24, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 24]
+  addi 5, 5, 16
+  stvx 25, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 25]
+  addi 5, 5, 16
+  stvx 26, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 26]
+  addi 5, 5, 16
+  stvx 27, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 27]
+  addi 5, 5, 16
+  stvx 28, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 28]
+  addi 5, 5, 16
+  stvx 29, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 29]
+  addi 5, 5, 16
+  stvx 30, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 30]
+  addi 5, 5, 16
+  stvx 31, 4, 5  // context->uc_mcontext.vmx_reserve[(align) + 31]
+  addi 5, 5, 16
+
+  // VSCR
+  mfvscr 0
+  stvx 0, 4, 5
+  addi 5, 5, 16
+
+  // VRSAVE
+  mfvrsave 0
+  stwx 0, 4, 5
+
+  // Update context->uc_mcontext.v_regs to point to vmx_reserve + alignment.
+  std 4, 0x370(3)
+
+  // Zero out all unused fields
+  li 4, 0
+  std 4, 0xc8(3) // context->uc_mcontext.signal
+  std 4, 0xd0(3) // context->uc_mcontext.handler
+  std 4, 0xd8(3) // context->uc_mcontext.oldmask
+
+  blr
 #endif  // __i386__
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/misc/capture_context_test.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/misc/capture_context_test.cc
index cf23c2def..5f264bc92 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/misc/capture_context_test.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/misc/capture_context_test.cc
@@ -57,7 +57,7 @@ void TestCaptureContext() {
   uintptr_t pc = ProgramCounterFromContext(context_1);
 
 #if !defined(ADDRESS_SANITIZER) && !defined(ARCH_CPU_MIPS_FAMILY) && \
-    !defined(MEMORY_SANITIZER)
+    !defined(MEMORY_SANITIZER) && !defined(ARCH_CPU_PPC64_FAMILY)
   // Sanitizers can cause enough code bloat that the “nearby” check would
   // likely fail.
   const uintptr_t kReferencePC =
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/misc/capture_context_test_util_linux.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/misc/capture_context_test_util_linux.cc
index 9fc5db28c..5f69f8dce 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/misc/capture_context_test_util_linux.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/misc/capture_context_test_util_linux.cc
@@ -36,6 +36,8 @@ void SanityCheckContext(const NativeCPUContext& context) {
   EXPECT_EQ(context.uc_mcontext.regs[0], FromPointerCast<uintptr_t>(&context));
 #elif defined(ARCH_CPU_MIPS_FAMILY)
   EXPECT_EQ(context.uc_mcontext.gregs[4], FromPointerCast<uintptr_t>(&context));
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+  EXPECT_EQ(context.uc_mcontext.gp_regs[3], FromPointerCast<uintptr_t>(&context));
 #endif
 }
 
@@ -50,6 +52,8 @@ uintptr_t ProgramCounterFromContext(const NativeCPUContext& context) {
   return context.uc_mcontext.pc;
 #elif defined(ARCH_CPU_MIPS_FAMILY)
   return context.uc_mcontext.pc;
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+  return context.uc_mcontext.gp_regs[PT_NIP];
 #endif
 }
 
@@ -64,6 +68,8 @@ uintptr_t StackPointerFromContext(const NativeCPUContext& context) {
   return context.uc_mcontext.sp;
 #elif defined(ARCH_CPU_MIPS_FAMILY)
   return context.uc_mcontext.gregs[29];
+#elif defined(ARCH_CPU_PPC64_FAMILY)
+  return context.uc_mcontext.gp_regs[1];
 #endif
 }
 
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/posix/signals_test.cc b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/posix/signals_test.cc
index 58bfa8f83..8fc37c464 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/posix/signals_test.cc
+++ b/qtwebengine/src/3rdparty/chromium/third_party/crashpad/crashpad/util/posix/signals_test.cc
@@ -46,12 +46,12 @@ bool CanCauseSignal(int sig) {
   return sig == SIGABRT ||
          sig == SIGALRM ||
          sig == SIGBUS ||
-#if !defined(ARCH_CPU_ARM64)
+#if !defined(ARCH_CPU_ARM64) && !defined(ARCH_CPU_PPC64)
          sig == SIGFPE ||
-#endif  // !defined(ARCH_CPU_ARM64)
+#endif  // !defined(ARCH_CPU_ARM64) && !defined(ARCH_CPU_PPC64)
 #if defined(ARCH_CPU_X86_FAMILY) || defined(ARCH_CPU_ARMEL)
          sig == SIGILL ||
-#endif  // defined(ARCH_CPU_X86_FAMILY) || defined(ARCH_CPU_ARMEL
+ #endif  // defined(ARCH_CPU_X86_FAMILY) || defined(ARCH_CPU_ARMEL)
          sig == SIGPIPE ||
          sig == SIGSEGV ||
 #if defined(OS_MACOSX)
@@ -117,9 +117,11 @@ void CauseSignal(int sig) {
       break;
     }
 
-#if !defined(ARCH_CPU_ARM64)
+#if !defined(ARCH_CPU_ARM64) && !defined(ARCH_CPU_PPC64)
     // ARM64 has hardware integer division instructions that don’t generate a
     // trap for divide-by-zero, so this doesn’t produce SIGFPE.
+    //
+    // PPC64 fixed-point division by zero also doesn't produce a SIGFPE.
     case SIGFPE: {
       // Optimization makes this tricky, so get zero from a system call likely
       // to succeed, and try to do something with the result.
@@ -137,7 +139,7 @@ void CauseSignal(int sig) {
       fstat(quotient, &stat_buf);
       break;
     }
-#endif  // ARCH_CPU_ARM64
+#endif  // !defined(ARCH_CPU_ARM64) && !defined(ARCH_CPU_PPC64)
 
 #if defined(ARCH_CPU_X86_FAMILY) || defined(ARCH_CPU_ARMEL)
     case SIGILL: {
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/dav1d/BUILD.gn b/qtwebengine/src/3rdparty/chromium/third_party/dav1d/BUILD.gn
index 788dc6cff..5fd7e8fda 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/dav1d/BUILD.gn
+++ b/qtwebengine/src/3rdparty/chromium/third_party/dav1d/BUILD.gn
@@ -182,6 +182,8 @@ static_library("dav1d_8bit") {
     sources += arm_template_sources
   } else if (current_cpu == "arm64") {
     sources += arm_template_sources
+  } else if (current_cpu == "ppc64") {
+    sources += ppc64_template_sources
   }
 
   cflags = dav1d_copts
@@ -210,6 +212,8 @@ static_library("dav1d_10bit") {
     sources += arm_template_sources
   } else if (current_cpu == "arm64") {
     sources += arm_template_sources
+  } else if (current_cpu == "ppc64") {
+    sources += ppc64_template_sources
   }
 
   cflags = dav1d_copts
@@ -256,6 +260,21 @@ if (current_cpu == "x86" || current_cpu == "x64") {
       ":dav1d_config",
     ]
 
+    cflags = dav1d_copts
+  }
+} else if (current_cpu == "ppc64") {
+  static_library("dav1d_ppc") {
+    sources = [
+      "libdav1d/src/ppc/cpu.c",
+      "libdav1d/src/ppc/cpu.h",
+    ]
+
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [
+      "//build/config/compiler:no_chromium_code",
+      ":dav1d_config",
+    ]
+
     cflags = dav1d_copts
   }
 }
@@ -285,5 +304,7 @@ static_library("dav1d") {
     }
   } else if (current_cpu == "arm" || current_cpu == "arm64") {
     deps += [ ":dav1d_arm" ]
+  } else if (current_cpu == "ppc64") {
+    deps += [ ":dav1d_ppc" ]
   }
 }
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/dav1d/config/linux/ppc64/config.h b/qtwebengine/src/3rdparty/chromium/third_party/dav1d/config/linux/ppc64/config.h
new file mode 100644
index 000000000..9fbbf75cc
--- /dev/null
+++ b/qtwebengine/src/3rdparty/chromium/third_party/dav1d/config/linux/ppc64/config.h
@@ -0,0 +1,39 @@
+/*
+ * Autogenerated by the Meson build system.
+ * Do not edit, your changes will be lost.
+ */
+
+#pragma once
+
+#define ARCH_AARCH64 0
+
+#define ARCH_ARM 0
+
+#define ARCH_PPC64LE 1
+
+#define ARCH_X86 0
+
+#define ARCH_X86_32 0
+
+#define ARCH_X86_64 0
+
+#define CONFIG_16BPC 1
+
+#define CONFIG_8BPC 1
+
+// #define CONFIG_LOG 1 -- Logging is controlled by Chromium
+
+#define ENDIANNESS_BIG 0
+
+#define HAVE_ASM 1
+
+#define HAVE_CLOCK_GETTIME 1
+
+#define HAVE_DLSYM 1
+
+#define HAVE_GETAUXVAL 1
+
+#define HAVE_POSIX_MEMALIGN 1
+
+#define HAVE_UNISTD_H 1
+
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/dav1d/dav1d_generated.gni b/qtwebengine/src/3rdparty/chromium/third_party/dav1d/dav1d_generated.gni
index 458935cd8..f0cbc4aed 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/dav1d/dav1d_generated.gni
+++ b/qtwebengine/src/3rdparty/chromium/third_party/dav1d/dav1d_generated.gni
@@ -70,6 +70,11 @@ arm_template_sources = [
   "libdav1d/src/arm/mc_init_tmpl.c",
 ]
 
+ppc64_template_sources = [
+  "libdav1d/src/ppc/cdef_init_tmpl.c",
+  "libdav1d/src/ppc/looprestoration_init_tmpl.c",
+]
+
 template_sources = [
   "libdav1d/src/cdef_apply_tmpl.c",
   "libdav1d/src/cdef_tmpl.c",
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/dav1d/generate_source.py b/qtwebengine/src/3rdparty/chromium/third_party/dav1d/generate_source.py
index 9ab5e00b8..ad3feffee 100755
--- a/qtwebengine/src/3rdparty/chromium/third_party/dav1d/generate_source.py
+++ b/qtwebengine/src/3rdparty/chromium/third_party/dav1d/generate_source.py
@@ -50,7 +50,8 @@ def WriteGn(fd):
   WriteArray(fd, "arm32_asm_sources", glob.glob("libdav1d/src/arm/32/*.S"))
   WriteArray(fd, "arm64_asm_sources", glob.glob("libdav1d/src/arm/64/*.S"))
   WriteArray(fd, "arm_template_sources", glob.glob("libdav1d/src/arm/*_tmpl.c"))
-
+  WriteArray(fd, "ppc64_template_sources", glob.glob("libdav1d/src/ppc/*_tmpl.c"))
+ 
   template_sources = glob.glob("libdav1d/src/*_tmpl.c")
   WriteArray(fd, "template_sources", template_sources)
 
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/dav1d/libdav1d/src/ppc/types.h b/qtwebengine/src/3rdparty/chromium/third_party/dav1d/libdav1d/src/ppc/types.h
index 0b4bd72f0..a0caa5e71 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/dav1d/libdav1d/src/ppc/types.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/dav1d/libdav1d/src/ppc/types.h
@@ -51,4 +51,19 @@
 #define u16l_to_i32(v) ((i32x4) vec_mergel((u16x8) v, vec_splat_u16(0)))
 #define i16l_to_i32(v) ((i32x4) vec_unpackl((i16x8)v))
 
+#if defined(__clang__)
+#undef vec_splats
+#define vec_splats(N)                     \
+    _Generic((N),                         \
+        unsigned char:      ((u8x16)(N)), \
+        signed char:        ((i8x16)(N)), \
+        unsigned short:     ((u16x8)(N)), \
+        signed short:       ((i16x8)(N)), \
+        unsigned int:       ((u32x4)(N)), \
+        signed int:         ((i32x4)(N)), \
+        unsigned long long: ((u64x2)(N)), \
+        signed long long:   ((i64x2)(N))  \
+    )
+#endif
+
 #endif /* DAV1D_SRC_PPC_TYPES_H */
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/libdrm/src/xf86drm.c b/qtwebengine/src/3rdparty/chromium/third_party/libdrm/src/xf86drm.c
index b7d586591..cead05021 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/libdrm/src/xf86drm.c
+++ b/qtwebengine/src/3rdparty/chromium/third_party/libdrm/src/xf86drm.c
@@ -51,10 +51,10 @@
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <stdarg.h>
-#ifdef MAJOR_IN_MKDEV
+#if __has_include(<sys/mkdev.h>)
 #include <sys/mkdev.h>
 #endif
-#ifdef MAJOR_IN_SYSMACROS
+#if __has_include(<sys/sysmacros.h>)
 #include <sys/sysmacros.h>
 #endif
 #include <math.h>
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/lss/linux_syscall_support.h b/qtwebengine/src/3rdparty/chromium/third_party/lss/linux_syscall_support.h
index 597d8b6e5..99d1ec0c7 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/lss/linux_syscall_support.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/lss/linux_syscall_support.h
@@ -3931,7 +3931,7 @@ struct kernel_statfs {
       LSS_REG(2, buf);
       LSS_BODY(void*, mmap2, "0"(__r2));
     }
-#else
+#elif !defined(__powerpc64__) /* ppc64 doesn't have mmap2 */
     #define __NR__mmap2 __NR_mmap2
     LSS_INLINE _syscall6(void*, _mmap2,            void*, s,
                          size_t,                   l, int,               p,
@@ -4042,7 +4042,7 @@ struct kernel_statfs {
   #if defined(__i386__) ||                                                    \
       defined(__ARM_ARCH_3__) || defined(__ARM_EABI__) ||                     \
      (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32) ||                   \
-      defined(__PPC__) ||                                                     \
+     (defined(__PPC__) && !defined(__powerpc64__)) ||                                                     \
      (defined(__s390__) && !defined(__s390x__))
     /* On these architectures, implement mmap() with mmap2(). */
     LSS_INLINE void* LSS_NAME(mmap)(void *s, size_t l, int p, int f, int d,
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/pffft/src/pffft.c b/qtwebengine/src/3rdparty/chromium/third_party/pffft/src/pffft.c
index bdac4d784..51e0f2cac 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/pffft/src/pffft.c
+++ b/qtwebengine/src/3rdparty/chromium/third_party/pffft/src/pffft.c
@@ -100,6 +100,7 @@
    Altivec support macros 
 */
 #if !defined(PFFFT_SIMD_DISABLE) && (defined(__ppc__) || defined(__ppc64__))
+#include <altivec.h>
 typedef vector float v4sf;
 #  define SIMD_SZ 4
 #  define VZERO() ((vector float) vec_splat_u8(0))
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/skia/src/sksl/SkSLString.cpp b/qtwebengine/src/3rdparty/chromium/third_party/skia/src/sksl/SkSLString.cpp
index 88eb1c7d3..4be33fa5b 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/skia/src/sksl/SkSLString.cpp
+++ b/qtwebengine/src/3rdparty/chromium/third_party/skia/qtwebengine/src/sksl/SkSLString.cpp
@@ -240,7 +240,12 @@ String to_string(double value) {
     if (needsDotZero) {
         buffer << ".0";
     }
-    return String(buffer.str().c_str());
+
+    std::string ret(buffer.str());
+    if (signbit(value) && ret[0] == '.') {
+        ret[0] = '-';
+    }
+    return String(ret.c_str());
 }
 
 SKSL_INT stoi(const String& s) {
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/sqlite/src/amalgamation/sqlite3.c b/qtwebengine/src/3rdparty/chromium/third_party/sqlite/src/amalgamation/sqlite3.c
index 1b2c2ec7a..baa2b2a5d 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/sqlite/src/amalgamation/sqlite3.c
+++ b/qtwebengine/src/3rdparty/chromium/third_party/sqlite/src/amalgamation/sqlite3.c
@@ -14400,7 +14400,8 @@ typedef INT16_TYPE LogEst;
 # if defined(i386)      || defined(__i386__)      || defined(_M_IX86) ||    \
      defined(__x86_64)  || defined(__x86_64__)    || defined(_M_X64)  ||    \
      defined(_M_AMD64)  || defined(_M_ARM)        || defined(__x86)   ||    \
-     defined(__ARMEL__) || defined(__AARCH64EL__) || defined(_M_ARM64)
+     defined(__ARMEL__) || defined(__AARCH64EL__) || defined(_M_ARM64) ||   \
+     defined(__powerpc64__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
 #   define SQLITE_BYTEORDER    1234
 # elif defined(sparc)     || defined(__ppc__) || \
        defined(__ARMEB__) || defined(__AARCH64EB__)
@@ -187118,7 +187119,7 @@ struct RtreeMatchArg {
 #if defined(i386)     || defined(__i386__)   || defined(_M_IX86) ||    \
     defined(__x86_64) || defined(__x86_64__) || defined(_M_X64)  ||    \
     defined(_M_AMD64) || defined(_M_ARM)     || defined(__x86)   ||    \
-    defined(__arm__)
+    defined(__arm__) || defined(__powerpc64__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
 # define SQLITE_BYTEORDER    1234
 #elif defined(sparc)    || defined(__ppc__)
 # define SQLITE_BYTEORDER    4321
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/sqlite/src/amalgamation_dev/sqlite3.c b/qtwebengine/src/3rdparty/chromium/third_party/sqlite/src/amalgamation_dev/sqlite3.c
index 734ac355d..43fabe805 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/sqlite/src/amalgamation_dev/sqlite3.c
+++ b/qtwebengine/src/3rdparty/chromium/third_party/sqlite/src/amalgamation_dev/sqlite3.c
@@ -14314,7 +14314,8 @@ typedef INT16_TYPE LogEst;
 # if defined(i386)      || defined(__i386__)      || defined(_M_IX86) ||    \
      defined(__x86_64)  || defined(__x86_64__)    || defined(_M_X64)  ||    \
      defined(_M_AMD64)  || defined(_M_ARM)        || defined(__x86)   ||    \
-     defined(__ARMEL__) || defined(__AARCH64EL__) || defined(_M_ARM64)
+     defined(__ARMEL__) || defined(__AARCH64EL__) || defined(_M_ARM64) ||   \
+     defined(__powerpc64__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
 #   define SQLITE_BYTEORDER    1234
 # elif defined(sparc)     || defined(__ppc__) || \
        defined(__ARMEB__) || defined(__AARCH64EB__)
@@ -186514,7 +186515,7 @@ struct RtreeMatchArg {
 #if defined(i386)     || defined(__i386__)   || defined(_M_IX86) ||    \
     defined(__x86_64) || defined(__x86_64__) || defined(_M_X64)  ||    \
     defined(_M_AMD64) || defined(_M_ARM)     || defined(__x86)   ||    \
-    defined(__arm__)
+    defined(__arm__) || defined(__powerpc64__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
 # define SQLITE_BYTEORDER    1234
 #elif defined(sparc)    || defined(__ppc__)
 # define SQLITE_BYTEORDER    4321
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/sqlite/src/ext/rtree/rtree.c b/qtwebengine/src/3rdparty/chromium/third_party/sqlite/src/ext/rtree/rtree.c
index 1eef1a1b5..b53097b7f 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/sqlite/src/ext/rtree/rtree.c
+++ b/qtwebengine/src/3rdparty/chromium/third_party/sqlite/src/ext/rtree/rtree.c
@@ -432,7 +432,7 @@ struct RtreeMatchArg {
 #if defined(i386)     || defined(__i386__)   || defined(_M_IX86) ||    \
     defined(__x86_64) || defined(__x86_64__) || defined(_M_X64)  ||    \
     defined(_M_AMD64) || defined(_M_ARM)     || defined(__x86)   ||    \
-    defined(__arm__)
+    defined(__arm__) || defined(__powerpc64__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
 # define SQLITE_BYTEORDER    1234
 #elif defined(sparc)    || defined(__ppc__)
 # define SQLITE_BYTEORDER    4321
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/sqlite/src/src/sqliteInt.h b/qtwebengine/src/3rdparty/chromium/third_party/sqlite/src/src/sqliteInt.h
index 9ef2437b0..6c70148c7 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/sqlite/src/src/sqliteInt.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/sqlite/src/src/sqliteInt.h
@@ -853,7 +853,8 @@ typedef INT16_TYPE LogEst;
 # if defined(i386)      || defined(__i386__)      || defined(_M_IX86) ||    \
      defined(__x86_64)  || defined(__x86_64__)    || defined(_M_X64)  ||    \
      defined(_M_AMD64)  || defined(_M_ARM)        || defined(__x86)   ||    \
-     defined(__ARMEL__) || defined(__AARCH64EL__) || defined(_M_ARM64)
+     defined(__ARMEL__) || defined(__AARCH64EL__) || defined(_M_ARM64) ||   \
+     defined(__powerpc64__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
 #   define SQLITE_BYTEORDER    1234
 # elif defined(sparc)     || defined(__ppc__) || \
        defined(__ARMEB__) || defined(__AARCH64EB__)
diff --git a/qtwebengine/src/3rdparty/chromium/third_party/webrtc/rtc_base/system/arch.h b/qtwebengine/src/3rdparty/chromium/third_party/webrtc/rtc_base/system/arch.h
index ed216e660..25d36c071 100644
--- a/qtwebengine/src/3rdparty/chromium/third_party/webrtc/rtc_base/system/arch.h
+++ b/qtwebengine/src/3rdparty/chromium/third_party/webrtc/rtc_base/system/arch.h
@@ -50,6 +50,18 @@
 #elif defined(__EMSCRIPTEN__)
 #define WEBRTC_ARCH_32_BITS
 #define WEBRTC_ARCH_LITTLE_ENDIAN
+#elif defined(__PPC__)
+#define WEBRTC_ARCH_PPC_FAMILY
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define WEBRTC_ARCH_LITTLE_ENDIAN
+#else
+#define WEBRTC_ARCH_BIG_ENDIAN
+#endif
+#if defined(__LP64__)
+#define WEBRTC_ARCH_64_BITS
+#else
+#define WEBRTC_ARCH_32_BITS
+#endif
 #else
 #error Please add support for your architecture in rtc_base/system/arch.h
 #endif
diff --git a/qtwebengine/src/3rdparty/chromium/v8/BUILD.gn b/qtwebengine/src/3rdparty/chromium/v8/BUILD.gn
index ab20142de..001921c59 100644
--- a/qtwebengine/src/3rdparty/chromium/v8/BUILD.gn
+++ b/qtwebengine/src/3rdparty/chromium/v8/BUILD.gn
@@ -678,6 +678,12 @@ config("toolchain") {
     }
     if (host_byteorder == "little") {
       defines += [ "V8_TARGET_ARCH_PPC_LE" ]
+        cflags += [
+        # Enable usage of AltiVec, VSX, and other POWER8 and higher features
+        "-mcpu=power8",
+        "-maltivec",
+        "-mvsx",
+      ]
     } else if (host_byteorder == "big") {
       defines += [ "V8_TARGET_ARCH_PPC_BE" ]
       if (current_os == "aix") {
diff --git a/src/3rdparty/chromium/sandbox/policy/linux/bpf_renderer_policy_linux.cc 
b/src/3rdparty/chromium/sandbox/policy/linux/bpf_renderer_policy_linux.cc
index 443e9114b..6df5678d6 100644
--- a/qtwebengine/src/3rdparty/chromium/services/service_manager/sandbox/linux/bpf_renderer_policy_linux.cc
+++ b/qtwebengine/src/3rdparty/chromium/services/service_manager/sandbox/linux/bpf_renderer_policy_linux.cc
@@ -15,6 +15,11 @@
 #include "sandbox/linux/system_headers/linux_syscalls.h"
 #include "services/service_manager/sandbox/linux/sandbox_linux.h"
 
+// On PPC64, TCGETS is defined in terms of struct termios, so we must include termios.h
+#ifdef __powerpc64__
+#include <termios.h>
+#endif
+
 // TODO(vignatti): replace the local definitions below with #include
 // <linux/dma-buf.h> once kernel version 4.6 becomes widely used.
 #include <linux/types.h>
