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authorEric Andersen <andersen@codepoet.org>2005-03-02 12:30:29 +0000
committerEric Andersen <andersen@codepoet.org>2005-03-02 12:30:29 +0000
commitcd2388d5b308df21fe0c36f61ef65defbd5e195d (patch)
tree21ccc8f3a75fc3e0e2b7d6daf331f183e1627a04 /toolchain/gcc/3.3.5/820-no-mips-empic-relocs.patch
parent5968b7e4de1fe31f1d3e6704503b0b2a2edf3eeb (diff)
downloadbuildroot-novena-cd2388d5b308df21fe0c36f61ef65defbd5e195d.tar.gz
buildroot-novena-cd2388d5b308df21fe0c36f61ef65defbd5e195d.zip
Fix things the other way round. Instead of restoring the mips
embedded pic support into binutils, instead fixup gcc to not emit any embedded pic relocations.
Diffstat (limited to 'toolchain/gcc/3.3.5/820-no-mips-empic-relocs.patch')
-rw-r--r--toolchain/gcc/3.3.5/820-no-mips-empic-relocs.patch59
1 files changed, 59 insertions, 0 deletions
diff --git a/toolchain/gcc/3.3.5/820-no-mips-empic-relocs.patch b/toolchain/gcc/3.3.5/820-no-mips-empic-relocs.patch
new file mode 100644
index 000000000..d5c4c9cb5
--- /dev/null
+++ b/toolchain/gcc/3.3.5/820-no-mips-empic-relocs.patch
@@ -0,0 +1,59 @@
+From: cgd at broadcom dot com
+To: gcc-patches at gcc dot gnu dot org
+Cc: mark at codesourcery dot com
+Date: 13 Jun 2004 22:51:30 -0700
+Subject: [trunk + 3.4-branch RFA] don't use empic relocs for mips-linuxeh
+
+This patch changes mips-linux to avoid using embedded-pic relocs for
+its eh data. (Support for generating these for new code is removed in
+current binutils srcs.)
+
+Relating to this, previously, mips-linux and mips64-linux would use
+different representations for their EH data (even for mips64-linux o32
+abi), due to the mips64-linux n32/64 BFDs not supporting the
+embedded-pic relocs. This was a bug.
+
+For more explanation, see the thread of the URL quoted in the comment
+in linux.h.
+
+
+Tested the same w/ sources of about a week ago for c/c++ for
+mips-linux (native) before/after. Also verified .o compatibility
+before/after just to be sure.
+
+I'd like this approved for the branch as well, so 3.4.1 will work
+nicely w/ the next major binutils release.
+
+
+thanks,
+
+chris
+
+2004-06-13 Chris Demetriou <cgd@broadcom.com>
+
+ * config/mips/linux.h (ASM_PREFERRED_EH_DATA_FORMAT): Redefine
+ to return DW_EH_PE_absptr.
+
+Index: config/mips/linux.h
+===================================================================
+RCS file: /cvs/gcc/gcc/gcc/config/mips/linux.h,v
+retrieving revision 1.77
+diff -u -p -r1.77 linux.h
+--- gcc/gcc/config/mips/linux.h 19 Feb 2004 22:07:51 -0000 1.77
++++ gcc/gcc/config/mips/linux.h 14 Jun 2004 05:49:51 -0000
+@@ -170,10 +170,11 @@ Boston, MA 02111-1307, USA. */
+ #undef FUNCTION_NAME_ALREADY_DECLARED
+ #define FUNCTION_NAME_ALREADY_DECLARED 1
+
+-#define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \
+- (flag_pic \
+- ? ((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4\
+- : DW_EH_PE_absptr)
++/* If possible, we should attempt to use GP-relative relocs for this
++ (see <a href="http://sources.redhat.com/ml/binutils/2004-05/msg00227.html">http://sources.redhat.com/ml/binutils/2004-05/msg00227.html</a>).
++ However, until that is implement, this just uses standard, absolute
++ references. */
++#define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) DW_EH_PE_absptr
+
+ /* The glibc _mcount stub will save $v0 for us. Don't mess with saving
+ it, since ASM_OUTPUT_REG_PUSH/ASM_OUTPUT_REG_POP do not work in the