patches/binutils/2.19.1a/100-ppc64-pie.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:46:47 2011 +0200 (2011-07-17)
changeset 2892 aa934ec4b4ee
parent 1243 5d15872659ec
permissions -rw-r--r--
cc/gcc: add the backend/frontend infra for final gcc

Currently, we issue the bare-metal compiler from the pass_1 & pass_2
core compilers, because the final gcc breaks while doing so.

This implies we have to build some libces during the start_files step,
instead of the standard libc step. This is the case for newlib.

By adding a backend/frontend infra to the final gcc, we can abstract
what backend to call: the standard backend for non-bare-metal gcc,
and the core backend for bare-metal.

This patch is just an no-op, it just adds the final backend and
frontend without changing the way bare-metal is built, to come in a
subsequent patch.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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Original patch from: ../crosstool-NG/ct-ng.trunk/patches/binutils/2.19/100-ppc64-pie.patch
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-= BEGIN original header =-
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Original patch from Gentoo:
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gentoo/src/patchsets/binutils/2.19/03_all_binutils-2.15.92.0.2-ppc64-pie.patch
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-= END original header =-
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diff -durN binutils-2.19.1.orig/bfd/elf64-ppc.c binutils-2.19.1/bfd/elf64-ppc.c
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--- binutils-2.19.1.orig/bfd/elf64-ppc.c	2008-10-09 14:18:24.000000000 +0200
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+++ binutils-2.19.1/bfd/elf64-ppc.c	2009-03-08 11:56:59.000000000 +0100
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@@ -11294,7 +11294,12 @@
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 	      else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf)
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 		       && !is_opd
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 		       && r_type != R_PPC64_TOC)
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-		outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type);
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+		{
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+		  outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type);
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+		  if (h->elf.dynindx == -1
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+		      && h->elf.root.type == bfd_link_hash_undefweak)
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+		  memset (&outrel, 0, sizeof outrel);
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+		}
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 	      else
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 		{
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 		  /* This symbol is local, or marked to become local,