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arm, unwind, LLVMLinux: Enable clang to be used for unwinding the stack

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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>
This commit is contained in:
Mark Charlebois 2014-02-11 19:26:08 -08:00 committed by Behan Webster
parent 76ae038287
commit e6b8075770
1 changed files with 1 additions and 1 deletions
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2
arch/arm/kernel/unwind.c
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@ -31,7 +31,7 @@
#warning Your compiler does not have EABI support. #warning Your compiler does not have EABI support.
#warning ARM unwind is known to compile only with EABI compilers. #warning ARM unwind is known to compile only with EABI compilers.
#warning Change compiler or disable ARM_UNWIND option. #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 Your compiler is too buggy; it is known to not compile ARM unwind support.
#warning Change compiler or disable ARM_UNWIND option. #warning Change compiler or disable ARM_UNWIND option.
#endif #endif