--- build/config/compiler/BUILD.gn.orig	2022-05-07 05:44:29 UTC
+++ build/config/compiler/BUILD.gn
@@ -137,7 +137,7 @@ declare_args() {
   #
   # TODO(crbug.com/1131993): Enabling this when 'is_android' is true breaks
   # content_shell_test_apk on both ARM and x86.
-  init_stack_vars = !is_android
+  init_stack_vars = !is_android && !is_bsd
 
   # This argument is to control whether enabling text section splitting in the
   # final binary. When enabled, the separated text sections with prefix
@@ -352,7 +352,7 @@ config("compiler") {
     }
 
     # Linker warnings.
-    if (fatal_linker_warnings && !is_apple && current_os != "aix" &&
+    if (fatal_linker_warnings && !is_apple && !is_bsd && current_os != "aix" &&
         current_os != "zos") {
       ldflags += [ "-Wl,--fatal-warnings" ]
     }
@@ -522,7 +522,7 @@ config("compiler") {
     ldflags += [ "-Wl,-z,keep-text-section-prefix" ]
   }
 
-  if (is_clang && !is_nacl && current_os != "zos") {
+  if (is_clang && !is_nacl && !is_bsd && current_os != "zos") {
     cflags += [ "-fcrash-diagnostics-dir=" + clang_diagnostic_dir ]
 
     # TODO(hans): Remove this once Clang generates better optimized debug info
@@ -918,7 +918,7 @@ config("compiler_cpu_abi") {
         cflags += [ "-mtune=$arm_tune" ]
       }
     } else if (current_cpu == "arm64") {
-      if (is_clang && !is_android && !is_nacl && !is_fuchsia) {
+      if (is_clang && !is_android && !is_nacl && !is_fuchsia && !is_bsd) {
         cflags += [ "--target=aarch64-linux-gnu" ]
         ldflags += [ "--target=aarch64-linux-gnu" ]
       }
@@ -1239,7 +1239,7 @@ config("compiler_deterministic") {
     # different build directory like "out/feature_a" and "out/feature_b" if
     # we build same files with same compile flag.
     # Other paths are already given in relative, no need to normalize them.
-    if (is_nacl) {
+    if (is_nacl || is_bsd) {
       # TODO(https://crbug.com/1231236): Use -ffile-compilation-dir= here.
       cflags += [
         "-Xclang",
@@ -1252,7 +1252,7 @@ config("compiler_deterministic") {
       # and -fcoverage-compilation-dir=.
       cflags += [ "-ffile-compilation-dir=." ]
     }
-    if (!is_win) {
+    if (!is_win && !is_bsd) {
       # We don't use clang -cc1as on Windows (yet? https://crbug.com/762167)
       asmflags = [ "-Wa,-fdebug-compilation-dir,." ]
     }
@@ -1506,7 +1506,7 @@ config("default_warnings") {
       "-Wno-unneeded-internal-declaration",
     ]
 
-    if (!is_nacl || is_nacl_saigo) {
+    if ((!is_nacl || is_nacl_saigo) && !is_bsd) {
       if (is_win) {
         # TODO(thakis): https://crbug.com/617318
         # Currently goma can not handle case sensitiveness for windows well.
@@ -1837,7 +1837,7 @@ config("thin_archive") {
   # archives.
   # TODO(crbug.com/1221615): Enable on is_apple if use_lld once that no longer
   # confuses lldb.
-  if ((is_posix && !is_nacl && !is_apple) || is_fuchsia) {
+  if ((is_posix && !is_nacl && !is_apple && !is_bsd) || is_fuchsia) {
     arflags = [ "-T" ]
   } else if (is_win && use_lld) {
     arflags = [ "/llvmlibthin" ]
@@ -2338,7 +2338,7 @@ config("symbols") {
     # flag, so we can use use -g1 for pnacl and nacl-clang compiles.
     # gcc nacl is is_nacl && !is_clang, pnacl and nacl-clang are && is_clang.
     if ((!is_nacl || is_clang) && current_os != "zos") {
-      cflags += [ "-g2" ]
+      cflags += [ "-g0" ]
     }
 
     if (!is_nacl && is_clang && !is_tsan && !is_asan &&
@@ -2378,7 +2378,7 @@ config("symbols") {
     # sections" there.  Maybe just a bug in nacl_switch_32.S.
     _enable_gdb_index =
         symbol_level == 2 && !is_apple && !is_nacl && current_cpu != "x86" &&
-        current_os != "zos" && (use_gold || use_lld) &&
+        current_os != "zos" && (use_gold || use_lld) && !is_bsd &&
         # Disable on non-fission 32-bit Android because it pushes
         # libcomponents_unittests over the 4gb size limit.
         !(is_android && !use_debug_fission && current_cpu != "x64" &&
@@ -2396,7 +2396,7 @@ config("symbols") {
   }
 
   if (is_clang && (!is_nacl || is_nacl_saigo) && current_os != "zos") {
-    if (is_apple) {
+    if (is_apple || is_bsd) {
       # TODO(https://crbug.com/1050118): Investigate missing debug info on mac.
       # Make sure we don't use constructor homing on mac.
       cflags += [