From 572b0cb4a35647b31ad991d0a9f548bee996beff Mon Sep 17 00:00:00 2001 From: nbd Date: Fri, 17 Feb 2012 16:55:08 +0000 Subject: 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 --- .../4.6-linaro/860-uclibc_use_eh_frame.patch | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 toolchain/gcc/patches/4.6-linaro/860-uclibc_use_eh_frame.patch (limited to 'toolchain/gcc/patches/4.6-linaro/860-uclibc_use_eh_frame.patch') diff --git a/toolchain/gcc/patches/4.6-linaro/860-uclibc_use_eh_frame.patch b/toolchain/gcc/patches/4.6-linaro/860-uclibc_use_eh_frame.patch new file mode 100644 index 0000000000..6b85d4913a --- /dev/null +++ b/toolchain/gcc/patches/4.6-linaro/860-uclibc_use_eh_frame.patch @@ -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 + /* 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) -- cgit v1.2.3