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Reinstate bypass for 32-bit relocs overflow on SPARC
- From: Eric Botcazou <ebotcazou at libertysurf dot fr>
- To: binutils at sourceware dot org
- Date: Tue, 31 Jan 2006 23:43:41 +0100
- Subject: Reinstate bypass for 32-bit relocs overflow on SPARC
Hi,
It was presumably ditched when DaveM merged the 32-bit and 64-bit code.
We need it on Solaris because 64-bit GCC has STABS enabled on this platform
and this yields gazillions of failures in the testsuite otherwise.
Tested on SPARC/Solaris 10 and SPARC64/Solaris 9. GCC 4.1pre was also
bootstrapped/regtested. Applied as semi-obvious. :-)
2006-01-31 Eric Botcazou <ebotcazou@libertysurf.fr>
* elfxx-sparc.c (_bfd_sparc_elf_relocate_section): Reinstate bypass
for 32-bit relocs overflow.
--
Eric Botcazou
Index: elfxx-sparc.c
===================================================================
RCS file: /cvs/src/src/bfd/elfxx-sparc.c,v
retrieving revision 1.15
diff -u -p -r1.15 elfxx-sparc.c
--- elfxx-sparc.c 25 Oct 2005 16:19:08 -0000 1.15
+++ elfxx-sparc.c 31 Jan 2006 16:49:00 -0000
@@ -3357,6 +3357,21 @@ _bfd_sparc_elf_relocate_section (bfd *ou
{
const char *name;
+ /* The Solaris native linker silently disregards overflows.
+ We don't, but this breaks stabs debugging info, whose
+ relocations are only 32-bits wide. Ignore overflows in
+ this case and also for discarded entries. */
+ if ((r_type == R_SPARC_32 || r_type == R_SPARC_DISP32)
+ && (((input_section->flags & SEC_DEBUGGING) != 0
+ && strcmp (bfd_section_name (input_bfd,
+ input_section),
+ ".stab") == 0)
+ || _bfd_elf_section_offset (output_bfd, info,
+ input_section,
+ rel->r_offset)
+ == (bfd_vma)-1))
+ break;
+
if (h != NULL)
name = NULL;
else