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authorMark Charlebois <charlebm@gmail.com>2014-02-11 19:26:08 -0800
committerBehan Webster <behanw@converseincode.com>2014-06-07 11:44:39 -0700
commite6b80757700a11315dd81b161f8d86099214c185 (patch)
tree6d86b7b59a31caa0b1354e4a7d093553414794b5 /arch/arm
parent76ae03828756bac2c1fa2c7eff7485e5f815dbdb (diff)
downloadlinux-e6b80757700a11315dd81b161f8d86099214c185.tar.bz2
arm, unwind, LLVMLinux: Enable clang to be used for unwinding the stack
Patch to prevent warning of a buggy compiler when using clang and the ARM_UNWIND option. Clang defines (at least on the current trunk) GNUC, GNUC_MINOR, and GNUC_PATCHLEVEL to 4, 2, and 1 respectively. This version of GCC gets flagged as buggy, but it isn't actually an issue with clang so the patch will do what it did before unless clang is defined and then it will not report the GCC version as an issue. Signed-off-by: Mark Charlebois <charlebm@gmail.com> Signed-off-by: Behan Webster <behanw@converseincode.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/kernel/unwind.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/kernel/unwind.c b/arch/arm/kernel/unwind.c
index cb791ac6a003..e67682f02cb2 100644
--- a/arch/arm/kernel/unwind.c
+++ b/arch/arm/kernel/unwind.c
@@ -31,7 +31,7 @@
#warning Your compiler does not have EABI support.
#warning ARM unwind is known to compile only with EABI compilers.
#warning Change compiler or disable ARM_UNWIND option.
-#elif (__GNUC__ == 4 && __GNUC_MINOR__ <= 2)
+#elif (__GNUC__ == 4 && __GNUC_MINOR__ <= 2) && !defined(__clang__)
#warning Your compiler is too buggy; it is known to not compile ARM unwind support.
#warning Change compiler or disable ARM_UNWIND option.
#endif