[Libunwind-devel] [PATCH] libunwind-arm: fix build failure due to asm()

[Romain Naour]

mesa3d on ARM build with libunwind support enabled fail to build due to asm()
function used when building with -std=c99.
The gcc documentation [1] suggest to use __asm__ instead of asm.

Fixes:
http://autobuild.buildroot.net/results/3ef/3efe156b6494e4392b6c31de447ee2c72acc1a53

[1] 
https://gcc.gnu.org/onlinedocs/gcc/Alternate-Keywords.html#Alternate-Keywords

Signed-off-by: Romain Naour <address@hidden>
Cc: Bernd Kuhls <address@hidden>
---
 include/libunwind-arm.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/libunwind-arm.h b/include/libunwind-arm.h
index f208487..1c856fa 100644
--- a/include/libunwind-arm.h
+++ b/include/libunwind-arm.h
@@ -265,7 +265,7 @@ unw_tdep_context_t;
 #ifndef __thumb__
 #define unw_tdep_getcontext(uc) (({                                     \
   unw_tdep_context_t *unw_ctx = (uc);                                   \
-  register unsigned long *unw_base asm ("r0") = unw_ctx->regs;          \
+  register unsigned long *unw_base __asm__ ("r0") = unw_ctx->regs;      \
   __asm__ __volatile__ (                                                \
     "stmia %[base], {r0-r15}"                                           \
     : : [base] "r" (unw_base) : "memory");                              \
@@ -273,7 +273,7 @@ unw_tdep_context_t;
 #else /* __thumb__ */
 #define unw_tdep_getcontext(uc) (({                                     \
   unw_tdep_context_t *unw_ctx = (uc);                                   \
-  register unsigned long *unw_base asm ("r0") = unw_ctx->regs;          \
+  register unsigned long *unw_base __asm__ ("r0") = unw_ctx->regs;      \
   __asm__ __volatile__ (                                                \
     ".align 2\nbx pc\nnop\n.code 32\n"                                  \
     "stmia %[base], {r0-r15}\n"                                         \
-- 
2.9.4