hak5
/
wifipineapple-openwrt
mirror of https://github.com/hak5/wifipineapple-openwrt.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

gcc: use .eh_frame sections for exception handling stack unwind - saves about 400 bytes on every executable or shared library 

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30614 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Felix Fietkau 2012-02-17 16:55:08 +00:00
parent 927594bdea
commit 7472c7c236
1 changed files with 29 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
toolchain/gcc/patches/4.6-linaro/860-uclibc_use_eh_frame.patch Normal file
View File

@ -0,0 +1,29 @@
--- a/gcc/crtstuff.c
+++ b/gcc/crtstuff.c
@@ -100,15 +100,20 @@
#if defined(OBJECT_FORMAT_ELF) \
&& !defined(OBJECT_FORMAT_FLAT) \
&& defined(HAVE_LD_EH_FRAME_HDR) \
- && !defined(inhibit_libc) && !defined(CRTSTUFFT_O) \
- && defined(__GLIBC__) && __GLIBC__ >= 2
+ && !defined(inhibit_libc) && !defined(CRTSTUFFT_O)
#include <link.h>
/* uClibc pretends to be glibc 2.2 and DT_CONFIG is defined in its link.h.
But it doesn't use PT_GNU_EH_FRAME ELF segment currently. */
-# if !defined(__UCLIBC__) \
- && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) \
- || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 2 && defined(DT_CONFIG)))
-# define USE_PT_GNU_EH_FRAME
+# if defined(__UCLIBC__)
+# if (__UCLIBC_MAJOR__ > 0 || __UCLIBC_MINOR__ > 9 || \
+ (__UCLIBC_MINOR__ == 9 && __UCLIBC_SUBLEVEL__ >= 33))
+# define USE_PT_GNU_EH_FRAME
+# endif
+# elif defined(__GLIBC__)
+# if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) \
+ || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 2 && defined(DT_CONFIG)))
+# define USE_PT_GNU_EH_FRAME
+# endif
# endif
#endif
#if defined(EH_FRAME_SECTION_NAME) && !defined(USE_PT_GNU_EH_FRAME)