--- src/3rdparty/chromium/v8/BUILD.gn.orig	2026-05-08 07:54:08 UTC
+++ src/3rdparty/chromium/v8/BUILD.gn
@@ -977,6 +977,8 @@ external_v8_defines = [
   "V8_TARGET_OS_MACOS",
   "V8_TARGET_OS_WIN",
   "V8_TARGET_OS_CHROMEOS",
+  "V8_TARGET_OS_OPENBSD",
+  "V8_TARGET_OS_FREEBSD",
 ]
 
 enabled_external_v8_defines = [
@@ -1051,6 +1053,12 @@ if (target_os == "android") {
 } else if (target_os == "chromeos") {
   enabled_external_v8_defines += [ "V8_HAVE_TARGET_OS" ]
   enabled_external_v8_defines += [ "V8_TARGET_OS_CHROMEOS" ]
+} else if (target_os == "openbsd") {
+  enabled_external_v8_defines += [ "V8_HAVE_TARGET_OS" ]
+  enabled_external_v8_defines += [ "V8_TARGET_OS_OPENBSD" ]
+} else if (target_os == "freebsd") {
+  enabled_external_v8_defines += [ "V8_HAVE_TARGET_OS" ]
+  enabled_external_v8_defines += [ "V8_TARGET_OS_FREEBSD" ]
 }
 
 disabled_external_v8_defines = external_v8_defines - enabled_external_v8_defines
@@ -1559,6 +1567,14 @@ config("toolchain") {
   if (v8_current_cpu == "ppc64") {
     defines += [ "V8_TARGET_ARCH_PPC64" ]
     cflags += [ "-ffp-contract=off" ]
+    if (host_byteorder == "little") {
+      defines += [ "V8_TARGET_ARCH_PPC_LE" ]
+      cflags += [
+        "-mcpu=power8",
+        "-maltivec",
+        "-mvsx",
+      ]
+    }
     if (current_os == "aix") {
       cflags += [
         # Work around AIX ceil, trunc and round oddities.
@@ -2588,6 +2604,12 @@ template("run_mksnapshot") {
       if (!v8_enable_builtins_profiling && v8_enable_builtins_reordering) {
         args += [ "--reorder-builtins" ]
       }
+
+      if (v8_current_cpu == "x86") {
+        args -= [
+          "--abort-on-bad-builtin-profile-data",
+        ]
+      }
     }
 
     # This is needed to distinguish between generating code for the simulator
@@ -6862,7 +6884,7 @@ v8_component("v8_libbase") {
     }
   }
 
-  if (is_linux || is_chromeos) {
+  if ((is_linux || is_chromeos) && !is_bsd) {
     sources += [
       "src/base/debug/stack_trace_posix.cc",
       "src/base/platform/platform-linux.cc",
@@ -6873,6 +6895,18 @@ v8_component("v8_libbase") {
       "dl",
       "rt",
     ]
+  } else if (is_openbsd) {
+    sources += [
+      "src/base/debug/stack_trace_posix.cc",
+      "src/base/platform/platform-openbsd.cc",
+    ]
+    libs = [ "execinfo" ]
+  } else if (is_freebsd) {
+    sources += [
+      "src/base/debug/stack_trace_posix.cc",
+      "src/base/platform/platform-freebsd.cc",
+    ]
+    libs = [ "execinfo" ]
   } else if (current_os == "aix") {
     sources += [
       "src/base/debug/stack_trace_posix.cc",