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| author |   Philipp Kirchhofer <philipp@familie-kirchhofer.de> | 2015-09-15 14:31:32 (GMT) |
|---|---|---|
| committer | Philipp Kirchhofer <philipp@familie-kirchhofer.de> | 2015-09-15 14:31:32 (GMT) |
| commit | 8442cd7e029c7a7d802195a77f74d3a5251f9d09 (patch) | |
| tree | 9746eb5cc3cb0dc1855cbd6678d3ab42bdd765c9 /patches/glibc/2.17 | |
| parent | b6342809d005ea2b0d24406eff52b6bac4ec0eee (diff) | |
Fix building glibc 2.17 with gcc 5.1+
Backport from glibc 2.20
Fixes error "In function _Unwind_Resume: undefined reference to libgcc_s_resume"
Diffstat (limited to 'patches/glibc/2.17')
| -rw-r--r-- | patches/glibc/2.17/100-Fix-ARM-build-with-GCC-trunk.patch | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/patches/glibc/2.17/100-Fix-ARM-build-with-GCC-trunk.patch b/patches/glibc/2.17/100-Fix-ARM-build-with-GCC-trunk.patch new file mode 100644 index 0000000..59f95aa --- /dev/null +++ b/patches/glibc/2.17/100-Fix-ARM-build-with-GCC-trunk.patch @@ -0,0 +1,54 @@ +From 175cef4163dd60f95106cfd5f593b8a4e09d02c9 Mon Sep 17 00:00:00 2001 +From: Joseph Myers <joseph@codesourcery.com> +Date: Tue, 20 May 2014 21:27:13 +0000 +Subject: [PATCH] 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. +--- + sysdeps/unix/sysv/linux/arm/unwind-forcedunwind.c | 3 ++- + sysdeps/unix/sysv/linux/arm/unwind-resume.c | 3 ++- + 3 files changed, 11 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/ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-forcedunwind.c ++++ b/ports/sysdeps/unix/sysv/linux/arm/nptl/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/ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-resume.c ++++ b/ports/sysdeps/unix/sysv/linux/arm/nptl/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 *); + +-- +1.9.4 + |