diff options
Diffstat (limited to 'import-layers/yocto-poky/meta/recipes-support/libunwind/libunwind-1.1/Support-building-with-older-compilers.patch')
-rw-r--r-- | import-layers/yocto-poky/meta/recipes-support/libunwind/libunwind-1.1/Support-building-with-older-compilers.patch | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/import-layers/yocto-poky/meta/recipes-support/libunwind/libunwind-1.1/Support-building-with-older-compilers.patch b/import-layers/yocto-poky/meta/recipes-support/libunwind/libunwind-1.1/Support-building-with-older-compilers.patch new file mode 100644 index 000000000..268b702dc --- /dev/null +++ b/import-layers/yocto-poky/meta/recipes-support/libunwind/libunwind-1.1/Support-building-with-older-compilers.patch @@ -0,0 +1,72 @@ +From 10b064ffe902d5af31bb49bd8e4f03c545f8d462 Mon Sep 17 00:00:00 2001 +From: Ladislav Michl <ladis@linux-mips.org> +Date: Tue, 13 Nov 2012 11:19:47 +0100 +Subject: [PATCH] Support building with older compilers. + +Add a check for __builtin_unreachable. + +Upstream-Status: Pending +--- + configure.ac | 11 +++++++++++ + include/libunwind_i.h | 6 ++++++ + src/arm/Gresume.c | 2 +- + src/sh/Gresume.c | 2 +- + 4 files changed, 19 insertions(+), 2 deletions(-) + +--- a/configure.ac ++++ b/configure.ac +@@ -285,6 +285,17 @@ if test x$have__builtin___clear_cache = + fi + AC_MSG_RESULT([$have__builtin___clear_cache]) + ++AC_MSG_CHECKING([for __builtin_unreachable]) ++AC_LINK_IFELSE( ++ [AC_LANG_PROGRAM([[]], [[__builtin_unreachable()]])], ++ [have__builtin_unreachable=yes], ++ [have__builtin_unreachable=no]) ++if test x$have__builtin_unreachable = xyes; then ++ AC_DEFINE([HAVE__BUILTIN_UNREACHABLE], [1], ++ [Defined if __builtin_unreachable() is available]) ++fi ++AC_MSG_RESULT([$have__builtin_unreachable]) ++ + AC_MSG_CHECKING([for __sync atomics]) + AC_LINK_IFELSE( + [AC_LANG_PROGRAM([[]], [[ +--- a/include/libunwind_i.h ++++ b/include/libunwind_i.h +@@ -72,6 +72,12 @@ WITH THE SOFTWARE OR THE USE OR OTHER DE + # endif + #endif + ++#if defined(HAVE__BUILTIN_UNREACHABLE) ++# define unreachable() __builtin_unreachable() ++#else ++# define unreachable() do { } while (1) ++#endif ++ + #ifdef DEBUG + # define UNW_DEBUG 1 + #else +--- a/src/arm/Gresume.c ++++ b/src/arm/Gresume.c +@@ -96,7 +96,7 @@ arm_local_resume (unw_addr_space_t as, u + : : "r" (c->sigcontext_sp), "r" (c->sigcontext_pc) + ); + } +- __builtin_unreachable(); ++ unreachable(); + #else + printf ("%s: implement me\n", __FUNCTION__); + #endif +--- a/src/sh/Gresume.c ++++ b/src/sh/Gresume.c +@@ -109,7 +109,7 @@ sh_local_resume (unw_addr_space_t as, un + "r" (c->sigcontext_pc) + ); + } +- __builtin_unreachable(); ++ unreachable(); + #endif + return -UNW_EINVAL; + } |