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authorAlan Modra <amodra@gmail.com>2016-05-27 17:20:55 +0930
committerAlan Modra <amodra@gmail.com>2016-05-28 11:17:20 +0930
commit1a72702bb30ec3f94627cfcae684823b413f20b9 (patch)
treed697bddb351a52f2f14e6c28a030357756609a30 /bfd/xcofflink.c
parentd5dca95ffc284d4380fddc063be43e155b7eb731 (diff)
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Return void from linker callbacks
The ldmain.c implementation of these linker callback functions always return true, so any code handling a false return is dead. What's more, some of the bfd backends abort if ever a false return is seen, and there seems to be some confusion in gdb's compile-object-load.c. The return value was never meant to be "oh yes, a multiple_definition error occurred", but rather "out of memory or other catastrophic failure". This patch removes the status return on the callbacks that always return true. I kept the return status for "notice" because that one does happen to need to return "out of memory". include/ * bfdlink.h (struct bfd_link_callbacks): Update comments. Return void from multiple_definition, multiple_common, add_to_set, constructor, warning, undefined_symbol, reloc_overflow, reloc_dangerous and unattached_reloc. bfd/ * aoutx.h: Adjust linker callback calls throughout file, removing dead code. * bout.c: Likewise. * coff-alpha.c: Likewise. * coff-arm.c: Likewise. * coff-h8300.c: Likewise. * coff-h8500.c: Likewise. * coff-i960.c: Likewise. * coff-mcore.c: Likewise. * coff-mips.c: Likewise. * coff-ppc.c: Likewise. * coff-rs6000.c: Likewise. * coff-sh.c: Likewise. * coff-tic80.c: Likewise. * coff-w65.c: Likewise. * coff-z80.c: Likewise. * coff-z8k.c: Likewise. * coff64-rs6000.c: Likewise. * cofflink.c: Likewise. * ecoff.c: Likewise. * elf-bfd.h: Likewise. * elf-m10200.c: Likewise. * elf-m10300.c: Likewise. * elf32-arc.c: Likewise. * elf32-arm.c: Likewise. * elf32-avr.c: Likewise. * elf32-bfin.c: Likewise. * elf32-cr16.c: Likewise. * elf32-cr16c.c: Likewise. * elf32-cris.c: Likewise. * elf32-crx.c: Likewise. * elf32-d10v.c: Likewise. * elf32-epiphany.c: Likewise. * elf32-fr30.c: Likewise. * elf32-frv.c: Likewise. * elf32-ft32.c: Likewise. * elf32-h8300.c: Likewise. * elf32-hppa.c: Likewise. * elf32-i370.c: Likewise. * elf32-i386.c: Likewise. * elf32-i860.c: Likewise. * elf32-ip2k.c: Likewise. * elf32-iq2000.c: Likewise. * elf32-lm32.c: Likewise. * elf32-m32c.c: Likewise. * elf32-m32r.c: Likewise. * elf32-m68hc1x.c: Likewise. * elf32-m68k.c: Likewise. * elf32-mep.c: Likewise. * elf32-metag.c: Likewise. * elf32-microblaze.c: Likewise. * elf32-moxie.c: Likewise. * elf32-msp430.c: Likewise. * elf32-mt.c: Likewise. * elf32-nds32.c: Likewise. * elf32-nios2.c: Likewise. * elf32-or1k.c: Likewise. * elf32-ppc.c: Likewise. * elf32-s390.c: Likewise. * elf32-score.c: Likewise. * elf32-score7.c: Likewise. * elf32-sh.c: Likewise. * elf32-sh64.c: Likewise. * elf32-spu.c: Likewise. * elf32-tic6x.c: Likewise. * elf32-tilepro.c: Likewise. * elf32-v850.c: Likewise. * elf32-vax.c: Likewise. * elf32-visium.c: Likewise. * elf32-xstormy16.c: Likewise. * elf32-xtensa.c: Likewise. * elf64-alpha.c: Likewise. * elf64-hppa.c: Likewise. * elf64-ia64-vms.c: Likewise. * elf64-mmix.c: Likewise. * elf64-ppc.c: Likewise. * elf64-s390.c: Likewise. * elf64-sh64.c: Likewise. * elf64-x86-64.c: Likewise. * elflink.c: Likewise. * elfnn-aarch64.c: Likewise. * elfnn-ia64.c: Likewise. * elfxx-mips.c: Likewise. * elfxx-sparc.c: Likewise. * elfxx-tilegx.c: Likewise. * linker.c: Likewise. * pdp11.c: Likewise. * pe-mips.c: Likewise. * reloc.c: Likewise. * reloc16.c: Likewise. * simple.c: Likewise. * vms-alpha.c: Likewise. * xcofflink.c: Likewise. * elf32-rl78.c (get_symbol_value, get_romstart, get_ramstart): Delete status param. Adjust calls to these and linker callbacks throughout. * elf32-rx.c: (get_symbol_value, get_gp, get_romstart, get_ramstart): Delete status param. Adjust calls to these and linker callbacks throughout. ld/ * ldmain.c (multiple_definition, multiple_common, add_to_set, constructor_callback, warning_callback, undefined_symbol, reloc_overflow, reloc_dangerous, unattached_reloc): Return void. * emultempl/elf32.em: Adjust callback calls. gdb/ * compile/compile-object-load.c (link_callbacks_multiple_definition, link_callbacks_warning, link_callbacks_undefined_symbol, link_callbacks_undefined_symbol, link_callbacks_reloc_overflow, link_callbacks_reloc_dangerous, link_callbacks_unattached_reloc): Return void.
Diffstat (limited to 'bfd/xcofflink.c')
-rw-r--r--bfd/xcofflink.c50
1 files changed, 20 insertions, 30 deletions
diff --git a/bfd/xcofflink.c b/bfd/xcofflink.c
index ca40096..de7a992 100644
--- a/bfd/xcofflink.c
+++ b/bfd/xcofflink.c
@@ -1992,9 +1992,10 @@ xcoff_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
sure the XCOFF linker is wholly prepared to
handle them, and that would only be a warning,
not an error. */
- if (! ((*info->callbacks->multiple_definition)
- (info, &(*sym_hash)->root, NULL, NULL, (bfd_vma) 0)))
- goto error_return;
+ (*info->callbacks->multiple_definition) (info,
+ &(*sym_hash)->root,
+ NULL, NULL,
+ (bfd_vma) 0);
/* Try not to give this error too many times. */
(*sym_hash)->flags &= ~XCOFF_MULTIPLY_DEFINED;
}
@@ -3117,11 +3118,8 @@ bfd_xcoff_import_symbol (bfd *output_bfd,
if (h->root.type == bfd_link_hash_defined
&& (! bfd_is_abs_section (h->root.u.def.section)
|| h->root.u.def.value != val))
- {
- if (! ((*info->callbacks->multiple_definition)
- (info, &h->root, output_bfd, bfd_abs_section_ptr, val)))
- return FALSE;
- }
+ (*info->callbacks->multiple_definition) (info, &h->root, output_bfd,
+ bfd_abs_section_ptr, val);
h->root.type = bfd_link_hash_defined;
h->root.u.def.section = bfd_abs_section_ptr;
@@ -4942,10 +4940,9 @@ xcoff_link_input_bfd (struct xcoff_final_link_info *flinfo,
if (name == NULL)
return FALSE;
- if (!(*flinfo->info->callbacks->unattached_reloc)
- (flinfo->info, name, input_bfd, o,
- irel->r_vaddr))
- return FALSE;
+ (*flinfo->info->callbacks->unattached_reloc)
+ (flinfo->info, name,
+ input_bfd, o, irel->r_vaddr);
}
}
}
@@ -5712,9 +5709,8 @@ xcoff_reloc_link_order (bfd *output_bfd,
FALSE, FALSE, TRUE));
if (h == NULL)
{
- if (! ((*flinfo->info->callbacks->unattached_reloc)
- (flinfo->info, link_order->u.reloc.p->u.name, NULL, NULL, (bfd_vma) 0)))
- return FALSE;
+ (*flinfo->info->callbacks->unattached_reloc)
+ (flinfo->info, link_order->u.reloc.p->u.name, NULL, NULL, (bfd_vma) 0);
return TRUE;
}
@@ -5752,13 +5748,9 @@ xcoff_reloc_link_order (bfd *output_bfd,
case bfd_reloc_outofrange:
abort ();
case bfd_reloc_overflow:
- if (! ((*flinfo->info->callbacks->reloc_overflow)
- (flinfo->info, NULL, link_order->u.reloc.p->u.name,
- howto->name, addend, NULL, NULL, (bfd_vma) 0)))
- {
- free (buf);
- return FALSE;
- }
+ (*flinfo->info->callbacks->reloc_overflow)
+ (flinfo->info, NULL, link_order->u.reloc.p->u.name,
+ howto->name, addend, NULL, NULL, (bfd_vma) 0);
break;
}
ok = bfd_set_section_contents (output_bfd, output_section, (void *) buf,
@@ -6282,10 +6274,9 @@ _bfd_xcoff_bfd_final_link (bfd *abfd, struct bfd_link_info *info)
{
if ((*rel_hash)->indx < 0)
{
- if (! ((*info->callbacks->unattached_reloc)
- (info, (*rel_hash)->root.root.string,
- NULL, o, irel->r_vaddr)))
- goto error_return;
+ (*info->callbacks->unattached_reloc)
+ (info, (*rel_hash)->root.root.string,
+ NULL, o, irel->r_vaddr);
(*rel_hash)->indx = 0;
}
irel->r_symndx = (*rel_hash)->indx;
@@ -6298,10 +6289,9 @@ _bfd_xcoff_bfd_final_link (bfd *abfd, struct bfd_link_info *info)
{
if (toc_rel_hash->h->u.toc_indx < 0)
{
- if (! ((*info->callbacks->unattached_reloc)
- (info, toc_rel_hash->h->root.root.string,
- NULL, o, toc_rel_hash->rel->r_vaddr)))
- goto error_return;
+ (*info->callbacks->unattached_reloc)
+ (info, toc_rel_hash->h->root.root.string,
+ NULL, o, toc_rel_hash->rel->r_vaddr);
toc_rel_hash->h->u.toc_indx = 0;
}
toc_rel_hash->rel->r_symndx = toc_rel_hash->h->u.toc_indx;