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* elf32-ppc.c (ppc_elf_relax_section): Implement reference code

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for handling SEC_MERGE symbols in relax_section.
	* coff-i386.c: Update copyright date.
This commit is contained in:
Alan Modra 2004-06-22 05:35:37 +00:00
parent fb514b26fa
commit d1c6de6f15
3 changed files with 45 additions and 6 deletions
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5
bfd/ChangeLog
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@ -1,3 +1,8 @@
2004-06-22 Alan Modra <amodra@bigpond.net.au>
* elf32-ppc.c (ppc_elf_relax_section): Implement reference code
for handling SEC_MERGE symbols in relax_section.
2004-06-21 Alexandre Oliva <aoliva@redhat.com>
2003-05-15 Richard Sandiford <rsandifo@redhat.com>

2
bfd/coff-i386.c
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@ -1,6 +1,6 @@
/* BFD back-end for Intel 386 COFF files.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
2000, 2001, 2002, 2003
2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
Written by Cygnus Support.

44
bfd/elf32-ppc.c
View File

@ -1723,6 +1723,7 @@ ppc_elf_relax_section (bfd *abfd,
bfd_vma max_branch_offset, val;
bfd_byte *hit_addr;
unsigned long t0;
unsigned char sym_type;
switch (r_type)
{
@ -1770,6 +1771,7 @@ ppc_elf_relax_section (bfd *abfd,
tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
toff = isym->st_value;
sym_type = ELF_ST_TYPE (isym->st_info);
}
else
{
@ -1799,6 +1801,8 @@ ppc_elf_relax_section (bfd *abfd,
}
else
continue;
sym_type = h->type;
}
/* If the branch and target are in the same section, you have
@ -1807,11 +1811,41 @@ ppc_elf_relax_section (bfd *abfd,
if (tsec == isec)
continue;
toff += irel->r_addend;
if (tsec->sec_info_type == ELF_INFO_TYPE_MERGE)
toff = _bfd_merged_section_offset (abfd, &tsec,
elf_section_data (tsec)->sec_info,
toff);
/* There probably isn't any reason to handle symbols in
SEC_MERGE sections; SEC_MERGE doesn't seem a likely
attribute for a code section, and we are only looking at
branches. However, implement it correctly here as a
reference for other target relax_section functions. */
if (0 && tsec->sec_info_type == ELF_INFO_TYPE_MERGE)
{
/* At this stage in linking, no SEC_MERGE symbol has been
adjusted, so all references to such symbols need to be
passed through _bfd_merged_section_offset. (Later, in
relocate_section, all SEC_MERGE symbols *except* for
section symbols have been adjusted.)
gas may reduce relocations against symbols in SEC_MERGE
sections to a relocation against the section symbol when
the original addend was zero. When the reloc is against
a section symbol we should include the addend in the
offset passed to _bfd_merged_section_offset, since the
location of interest is the original symbol. On the
other hand, an access to "sym+addend" where "sym" is not
a section symbol should not include the addend; Such an
access is presumed to be an offset from "sym"; The
location of interest is just "sym". */
if (sym_type == STT_SECTION)
toff += irel->r_addend;
toff = _bfd_merged_section_offset (abfd, &tsec,
elf_section_data (tsec)->sec_info,
toff);
if (sym_type != STT_SECTION)
toff += irel->r_addend;
}
else
toff += irel->r_addend;
symaddr = tsec->output_section->vma + tsec->output_offset + toff;