From db1674c532d0ff91376412c3ea4ca3543a496f49 Mon Sep 17 00:00:00 2001
From: machenbach <machenbach@chromium.org>
Date: Mon, 27 Apr 2015 06:20:05 -0700
Subject: [PATCH] Reland [test] Make msan work for v8 stand-alone. (patchset #1
 id:1 of https://codereview.chromium.org/1104073002/)

Reason for revert:
Reland after switching bot to ninja.

Original issue's description:
> Revert of [test] Make msan work for v8 stand-alone. (patchset #6 id:100001 of https://codereview.chromium.org/802583003/)
>
> Reason for revert:
> Compile failures: http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/builds/2047
>
> Original issue's description:
> > [test] Make msan work for v8 stand-alone.
> >
> > The msan configuration can be used in combination with
> > v8_use_snapshot=false.
> >
> > BUG=chromium:425187
> > LOG=n
> >
> > Committed: https://crrev.com/a65ef0d53fc28b0908f228938c6d84effa83c596
> > Cr-Commit-Position: refs/heads/master@{#28064}
>
> TBR=jochen@chromium.org,earthdok@chromium.org,svenpanne@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=chromium:425187
>
> Committed: https://crrev.com/f69a48696ec3ec0ea1169a41b4c84fb36b059968
> Cr-Commit-Position: refs/heads/master@{#28068}

TBR=jochen@chromium.org,earthdok@chromium.org,svenpanne@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:425187

Review URL: https://codereview.chromium.org/1102323002

Cr-Commit-Position: refs/heads/master@{#28078}
---
 build/standalone.gypi | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/build/standalone.gypi b/build/standalone.gypi
index 2266d98346a..cd7847b3497 100644
--- a/build/standalone.gypi
+++ b/build/standalone.gypi
@@ -35,6 +35,10 @@
     'component%': 'static_library',
     'clang_dir%': 'third_party/llvm-build/Release+Asserts',
     'clang_xcode%': 0,
+    # Track where uninitialized memory originates from. From fastest to
+    # slowest: 0 - no tracking, 1 - track only the initial allocation site, 2
+    # - track the chain of stores leading from allocation site to use site.
+    'msan_track_origins%': 1,
     'visibility%': 'hidden',
     'v8_enable_backtrace%': 0,
     'v8_enable_i18n_support%': 1,
@@ -315,6 +319,36 @@
         ],
       },
     }],
+    ['msan==1 and OS!="mac"', {
+      'target_defaults': {
+        'cflags_cc+': [
+          '-fno-omit-frame-pointer',
+          '-gline-tables-only',
+          '-fsanitize=memory',
+          '-fsanitize-memory-track-origins=<(msan_track_origins)',
+          '-fPIC',
+        ],
+        'cflags+': [
+          '-fPIC',
+        ],
+        'cflags!': [
+          '-fno-exceptions',
+          '-fomit-frame-pointer',
+        ],
+        'ldflags': [
+          '-fsanitize=memory',
+        ],
+        'defines': [
+          'MEMORY_SANITIZER',
+        ],
+        'dependencies': [
+          # Use libc++ (third_party/libc++ and third_party/libc++abi) instead of
+          # stdlibc++ as standard library. This is intended to use for instrumented
+          # builds.
+          '<(DEPTH)/buildtools/third_party/libc++/libc++.gyp:libcxx_proxy',
+        ],
+      },
+    }],
     ['asan==1 and OS=="mac"', {
       'target_defaults': {
         'xcode_settings': {