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author | Joseph Myers <joseph@codesourcery.com> | 2014-05-20 21:27:13 +0000 |
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committer | Joseph Myers <joseph@codesourcery.com> | 2014-05-20 21:27:13 +0000 |
commit | 175cef4163dd60f95106cfd5f593b8a4e09d02c9 (patch) | |
tree | ae412697f6735c98673619f69aded223f389cd4c /sysdeps/unix/sysv/linux/arm/unwind-forcedunwind.c | |
parent | 7c112a38127d1d1df0d31ac4ce437294b7813229 (diff) | |
download | glibc-175cef4163dd60f95106cfd5f593b8a4e09d02c9.tar.gz glibc-175cef4163dd60f95106cfd5f593b8a4e09d02c9.tar.xz glibc-175cef4163dd60f95106cfd5f593b8a4e09d02c9.zip |
Fix ARM build with GCC trunk.
sysdeps/unix/sysv/linux/arm/unwind-resume.c and sysdeps/unix/sysv/linux/arm/unwind-forcedunwind.c have static variables that are written in C code but only read from toplevel asms. Current GCC trunk now optimizes away such apparently write-only static variables, so causing a build failure. This patch marks those variables with __attribute_used__ to avoid that optimization. Tested that this fixes the build for ARM. * sysdeps/unix/sysv/linux/arm/unwind-forcedunwind.c (libgcc_s_resume): Use __attribute_used__. * sysdeps/unix/sysv/linux/arm/unwind-resume.c (libgcc_s_resume): Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/arm/unwind-forcedunwind.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/arm/unwind-forcedunwind.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/arm/unwind-forcedunwind.c b/sysdeps/unix/sysv/linux/arm/unwind-forcedunwind.c index 6ccd9b43a1..660d1488e1 100644 --- a/sysdeps/unix/sysv/linux/arm/unwind-forcedunwind.c +++ b/sysdeps/unix/sysv/linux/arm/unwind-forcedunwind.c @@ -22,7 +22,8 @@ #include <pthreadP.h> static void *libgcc_s_handle; -static void (*libgcc_s_resume) (struct _Unwind_Exception *exc); +static void (*libgcc_s_resume) (struct _Unwind_Exception *exc) + __attribute_used__; static _Unwind_Reason_Code (*libgcc_s_personality) (_Unwind_State, struct _Unwind_Exception *, struct _Unwind_Context *); static _Unwind_Reason_Code (*libgcc_s_forcedunwind) |