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bfd/ChangeLog

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* elflink.c (find_version_for_sym):  Remove from here, ...
	* linker.c (bfd_find_version_for_sym):  ... rename, replace
	here, make public and update all callers.
	* bfd-in2.h:  Regenerate.

ld/ChangeLog

	* NEWS:  Mention new feature.
	* ld.texinfo (--version-script):  Document extent of PE support.
	(WIN32):  Mention --version-script.  Extend auto-export description.
	* pe-dll.c (process_def_file):  Use version script info to filter
	symbols from auto-export.
	* testsuite/ld-pe/vers-script-1.d:  New file.
	* testsuite/ld-pe/vers-script-2.d:  New file.
	* testsuite/ld-pe/vers-script-3.d:  New file.
	* testsuite/ld-pe/vers-script-4.d:  New file.
	* testsuite/ld-pe/vers-script-1.ver:  New file.
	* testsuite/ld-pe/vers-script-2.ver:  New file.
	* testsuite/ld-pe/vers-script-3.ver:  New file.
	* testsuite/ld-pe/vers-script-4.ver:  New file.
	* testsuite/ld-pe/vers-script-dll.c:  New file.
	* testsuite/ld-pe/vers-script.exp:  New test script.
This commit is contained in:
Dave Korn
2009-05-04 12:09:30 +00:00
parent 67ce33d768
commit 09e2aba432
18 changed files with 721 additions and 82 deletions
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92
bfd/linker.c
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@@ -3245,3 +3245,95 @@ bfd_generic_define_common_symbol (bfd *output_bfd,
section->flags &= ~SEC_IS_COMMON;
return TRUE;
}
/*
FUNCTION
bfd_find_version_for_sym
SYNOPSIS
struct bfd_elf_version_tree * bfd_find_version_for_sym
(struct bfd_elf_version_tree *verdefs,
const char *sym_name, bfd_boolean *hide);
DESCRIPTION
Search an elf version script tree for symbol versioning
info and export / don't-export status for a given symbol.
Return non-NULL on success and NULL on failure; also sets
the output @samp{hide} boolean parameter.
*/
struct bfd_elf_version_tree *
bfd_find_version_for_sym (struct bfd_elf_version_tree *verdefs,
const char *sym_name,
bfd_boolean *hide)
{
struct bfd_elf_version_tree *t;
struct bfd_elf_version_tree *local_ver, *global_ver, *exist_ver;
local_ver = NULL;
global_ver = NULL;
exist_ver = NULL;
for (t = verdefs; t != NULL; t = t->next)
{
if (t->globals.list != NULL)
{
struct bfd_elf_version_expr *d = NULL;
while ((d = (*t->match) (&t->globals, d, sym_name)) != NULL)
{
global_ver = t;
if (d->symver)
exist_ver = t;
d->script = 1;
/* If the match is a wildcard pattern, keep looking for
a more explicit, perhaps even local, match. */
if (d->literal)
break;
}
if (d != NULL)
break;
}
if (t->locals.list != NULL)
{
struct bfd_elf_version_expr *d = NULL;
while ((d = (*t->match) (&t->locals, d, sym_name)) != NULL)
{
local_ver = t;
/* If the match is a wildcard pattern, keep looking for
a more explicit, perhaps even global, match. */
if (d->literal)
{
/* An exact match overrides a global wildcard. */
global_ver = NULL;
break;
}
}
if (d != NULL)
break;
}
}
if (global_ver != NULL)
{
/* If we already have a versioned symbol that matches the
node for this symbol, then we don't want to create a
duplicate from the unversioned symbol. Instead hide the
unversioned symbol. */
*hide = exist_ver == global_ver;
return global_ver;
}
if (local_ver != NULL)
{
*hide = TRUE;
return local_ver;
}
return NULL;
}