Due to a bug in gcc 4.6+ it can crash when doing profile feedback
with a noreturn function pointer
(http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49299)
This adds a Makefile variable to disable noreturns.
[Patch by Junio, description by Andi Kleen]
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
# that tells runtime paths to dynamic libraries;
# "-Wl,-rpath=/path/lib" is used instead.
#
+# Define NO_NORETURN if using buggy versions of gcc 4.6+ and profile feedback,
+# as the compiler can crash (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49299)
+#
# Define USE_NSEC below if you want git to care about sub-second file mtimes
# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and
# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely
ifdef USE_ST_TIMESPEC
BASIC_CFLAGS += -DUSE_ST_TIMESPEC
endif
+ifdef NO_NORETURN
+ BASIC_CFLAGS += -DNO_NORETURN
+endif
ifdef NO_NSEC
BASIC_CFLAGS += -DNO_NSEC
endif
#if __HP_cc >= 61000
#define NORETURN __attribute__((noreturn))
#define NORETURN_PTR
-#elif defined(__GNUC__)
+#elif defined(__GNUC__) && !defined(NO_NORETURN)
#define NORETURN __attribute__((__noreturn__))
#define NORETURN_PTR __attribute__((__noreturn__))
#elif defined(_MSC_VER)