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| author | Joseph Myers <joseph@codesourcery.com> | 2014-05-20 21:27:13 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2014-05-20 21:27:13 +0000 |
| commit | 175cef4163dd60f95106cfd5f593b8a4e09d02c9 (patch) | |
| tree | ae412697f6735c98673619f69aded223f389cd4c /sysdeps/unix | |
| parent | 7c112a38127d1d1df0d31ac4ce437294b7813229 (diff) | |
| download | glibc-175cef4163dd60f95106cfd5f593b8a4e09d02c9.zip glibc-175cef4163dd60f95106cfd5f593b8a4e09d02c9.tar.gz glibc-175cef4163dd60f95106cfd5f593b8a4e09d02c9.tar.bz2 | |
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')
| -rw-r--r-- | sysdeps/unix/sysv/linux/arm/unwind-forcedunwind.c | 3 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/arm/unwind-resume.c | 3 |
2 files changed, 4 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/arm/unwind-forcedunwind.c b/sysdeps/unix/sysv/linux/arm/unwind-forcedunwind.c index 6ccd9b4..660d148 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) diff --git a/sysdeps/unix/sysv/linux/arm/unwind-resume.c b/sysdeps/unix/sysv/linux/arm/unwind-resume.c index bff3e2b..1f1eb71 100644 --- a/sysdeps/unix/sysv/linux/arm/unwind-resume.c +++ b/sysdeps/unix/sysv/linux/arm/unwind-resume.c @@ -20,7 +20,8 @@ #include <stdio.h> #include <unwind.h> -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 *); |