Merge pull request #43947 from winterpixelgames/PR-allow-msan-sanitizer-build-option

consolidating sanitizers and adding MSAN option on platforms that sup…

1 files changed, 6 insertions, 1 deletions

diff --git a/platform/server/detect.py b/platform/server/detect.py
index 5be7e81e7a..c799ce03e1 100644
--- a/platform/server/detect.py
+++ b/platform/server/detect.py
@@ -39,6 +39,7 @@ def get_opts():
         BoolVariable("use_lsan", "Use LLVM/GCC compiler leak sanitizer (LSAN))", False),
         BoolVariable("use_tsan", "Use LLVM/GCC compiler thread sanitizer (TSAN))", False),
         BoolVariable("debug_symbols", "Add debugging symbols to release/release_debug builds", True),
+        BoolVariable("use_msan", "Use LLVM/GCC compiler memory sanitizer (MSAN))", False),
         BoolVariable("separate_debug_symbols", "Create a separate file containing debugging symbols", False),
         BoolVariable("execinfo", "Use libexecinfo on systems where glibc is not available", False),
     ]
@@ -99,7 +100,7 @@ def configure(env):
         env.Append(CCFLAGS=["-ftest-coverage", "-fprofile-arcs"])
         env.Append(LINKFLAGS=["-ftest-coverage", "-fprofile-arcs"])
 
-    if env["use_ubsan"] or env["use_asan"] or env["use_lsan"] or env["use_tsan"]:
+    if env["use_ubsan"] or env["use_asan"] or env["use_lsan"] or env["use_tsan"] or env["use_msan"]:
         env.extra_suffix += "s"
 
         if env["use_ubsan"]:
@@ -118,6 +119,10 @@ def configure(env):
             env.Append(CCFLAGS=["-fsanitize=thread"])
             env.Append(LINKFLAGS=["-fsanitize=thread"])
 
+        if env["use_msan"]:
+            env.Append(CCFLAGS=["-fsanitize=memory"])
+            env.Append(LINKFLAGS=["-fsanitize=memory"])
+
     if env["use_lto"]:
         env.Append(CCFLAGS=["-flto"])
         if not env["use_llvm"] and env.GetOption("num_jobs") > 1: