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Resync libiberty sources with master version in GCC repository.

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2018-04-13  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	PR lto/81968
	* simple-object.c (handle_lto_debug_sections): Keep .comment
	section.

2018-03-02  David Malcolm  <dmalcolm@redhat.com>

	* cp-demangle.c: Update URL for g++ V3 ABI.

2018-01-20  Eli Zaretskii  <eliz@gnu.org>

	* simple-object-xcoff.c (simple_object_xcoff_find_sections): Use
	ulong_type to avoid warning about 32-bit shift.

2018-01-11  Richard Biener  <rguenther@suse.de>
	Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	PR lto/81968
	* simple-object-common.h (struct simple_object_functions):
	Change copy_lto_debug_sections callback signature.
	* simple-object-elf.c (SHN_HIRESERVE, SHT_SYMTAB_SHNDX,
	SHF_INFO_LINK): Add defines.
	(simple_object_elf_copy_lto_debug_sections): Instead of
	leaving not to be copied sections empty unnamed SHT_NULL
	remove them from the target section headers and adjust section
	reference everywhere.  Handle SHN_XINDEX in the symbol table
	processing properly.
	* simple-object.c (handle_lto_debug_sections): Change
	interface to return a modified string and handle renaming
	of relocation sections.

2018-01-10  Daniel van Gerpen  <daniel@vangerpen.de>

	* argv.c (expandargv): Correct check for dynamically
	allocated argv.
This commit is contained in:
Nick Clifton 2018-04-17 13:53:38 +01:00
parent bdd7c8fc34
commit e9301e762a
7 changed files with 318 additions and 177 deletions
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43
libiberty/simple-object.c
View file

@ -253,30 +253,43 @@ simple_object_find_section (simple_object_read *sobj, const char *name,
/* Callback to identify and rename LTO debug sections by name.
Returns 1 if NAME is a LTO debug section, 0 if not. */
static int
handle_lto_debug_sections (const char **name)
static char *
handle_lto_debug_sections (const char *name)
{
char *newname = XCNEWVEC (char, strlen (name) + 1);
/* ??? So we can't use .gnu.lto_ prefixed sections as the assembler
complains about bogus section flags. Which means we need to arrange
for that to be fixed or .gnu.debuglto_ marked as SHF_EXCLUDE (to make
fat lto object tooling work for the fat part). */
/* Also include corresponding reloc sections. */
if (strncmp (name, ".rela", sizeof (".rela") - 1) == 0)
{
strncpy (newname, name, sizeof (".rela") - 1);
name += sizeof (".rela") - 1;
}
else if (strncmp (name, ".rel", sizeof (".rel") - 1) == 0)
{
strncpy (newname, name, sizeof (".rel") - 1);
name += sizeof (".rel") - 1;
}
/* ??? For now this handles both .gnu.lto_ and .gnu.debuglto_ prefixed
sections. */
/* Copy LTO debug sections and rename them to their non-LTO name. */
if (strncmp (*name, ".gnu.debuglto_", sizeof (".gnu.debuglto_") - 1) == 0)
{
*name = *name + sizeof (".gnu.debuglto_") - 1;
return 1;
}
else if (strncmp (*name, ".gnu.lto_.debug_", sizeof (".gnu.lto_.debug_") -1) == 0)
{
*name = *name + sizeof (".gnu.lto_") - 1;
return 1;
}
if (strncmp (name, ".gnu.debuglto_", sizeof (".gnu.debuglto_") - 1) == 0)
return strcat (newname, name + sizeof (".gnu.debuglto_") - 1);
else if (strncmp (name, ".gnu.lto_.debug_",
sizeof (".gnu.lto_.debug_") -1) == 0)
return strcat (newname, name + sizeof (".gnu.lto_") - 1);
/* Copy over .note.GNU-stack section under the same name if present. */
else if (strcmp (*name, ".note.GNU-stack") == 0)
return 1;
return 0;
else if (strcmp (name, ".note.GNU-stack") == 0)
return strcpy (newname, name);
/* Copy over .comment section under the same name if present. Solaris
ld uses them to relax its checking of ELF gABI access rules for
COMDAT sections in objects produced by GCC. */
else if (strcmp (name, ".comment") == 0)
return strcpy (newname, name);
return NULL;
}
/* Copy LTO debug sections. */