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Support building core with thread sanitizer #4337

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Jun 27, 2024
Merged

Support building core with thread sanitizer #4337

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5 changes: 5 additions & 0 deletions CONTRIBUTING.md
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Original file line number Diff line number Diff line change
Expand Up @@ -137,6 +137,11 @@ positives as well (disabling postgres is a good workaround).
What the configure script does under the cover is use the custom version of your library at link
time, but still uses the system headers - so make sure that the two don't conflict!

### enable-threadsanitizer
Build with thread sanitizer (TSan) instrumentation, which detects data races.

See https://clang.llvm.org/docs/ThreadSanitizer.html for more information.

#### Building a custom `libc++`

The steps for building an instrumented version of libc++ can be found on the [memory sanitizer
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12 changes: 12 additions & 0 deletions configure.ac
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Expand Up @@ -115,6 +115,18 @@ AS_IF([test "x$enable_codecoverage" = "xyes"], [
CFLAGS="$CFLAGS -fprofile-instr-generate -fcoverage-mapping"
])

AC_ARG_ENABLE([threadsanitizer],
AS_HELP_STRING([--enable-threadsanitizer],
[build with thread-sanitizer (TSan) instrumentation]))
AS_IF([test "x$enable_threadsanitizer" = "xyes"], [
AC_MSG_NOTICE([ enabling thread-sanitizer, see https://clang.llvm.org/docs/ThreadSanitizer.html ])

AS_IF([test x != "x$sanitizeopts"], [
AC_MSG_ERROR(Cannot enable multiple checkers at once)
])
sanitizeopts="thread"
])

AC_ARG_ENABLE([memcheck],
AS_HELP_STRING([--enable-memcheck],
[build with memcheck (memory-sanitizer) instrumentation]))
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