mirrors/binutils-gdb
0
0
Fork 0
mirror of https://sourceware.org/git/binutils-gdb.git synced 2024-11-27 20:14:06 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

bfd/

Browse Source 
2002-07-14  H.J. Lu <hjl@gnu.org>

	* elflink.h (elf_link_assign_sym_version): Hide the default
	definition if there is a hidden versioned definition.

ld/
2002-07-14  H.J. Lu <hjl@gnu.org>

	* ld.texinfo: Document a .symver takes precedence over a
	version script.
This commit is contained in:
H.J. Lu 2002-07-15 02:23:26 +00:00
parent 1bfdf77716
commit 96a94295f2
4 changed files with 50 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
bfd/ChangeLog
View File

@ -1,3 +1,8 @@
2002-07-14 H.J. Lu <hjl@gnu.org>
* elflink.h (elf_link_assign_sym_version): Hide the default
definition if there is a hidden versioned definition.
2002-07-12 Hans-Peter Nilsson <hp@axis.com>
* elf32-cris.c (cris_elf_relocate_section): Drop nonsensical

38
bfd/elflink.h
View File

@ -4345,6 +4345,7 @@ elf_link_assign_sym_version (h, data)
(_("%s: undefined versioned symbol name %s"),
bfd_get_filename (sinfo->output_bfd), h->root.root.string);
bfd_set_error (bfd_error_bad_value);
error_return:
sinfo->failed = true;
return false;
}
@ -4416,6 +4417,43 @@ elf_link_assign_sym_version (h, data)
(*bed->elf_backend_hide_symbol) (info, h, true);
}
}
/* We need to check if a hidden versioned definition should
hide the default one. */
if (h->dynindx != -1 && h->verinfo.vertree != NULL)
{
const char *verstr, *name;
size_t namelen, verlen, newlen;
char *newname;
struct elf_link_hash_entry *newh;
name = h->root.root.string;
namelen = strlen (name);
verstr = h->verinfo.vertree->name;
verlen = strlen (verstr);
newlen = namelen + verlen + 2;
newname = (char *) bfd_malloc ((bfd_size_type) newlen);
if (newname == NULL)
goto error_return;
memcpy (newname, name, namelen);
/* Check the hidden versioned definition. */
p = newname + namelen;
*p++ = ELF_VER_CHR;
memcpy (p, verstr, verlen + 1);
newh = elf_link_hash_lookup (elf_hash_table (info), newname,
false, false, false);
if (newh
&& (newh->root.type == bfd_link_hash_defined
|| newh->root.type == bfd_link_hash_defweak))
/* We find a hidden versioned definition. Hide the default
one. */
(*bed->elf_backend_hide_symbol) (info, h, true);
free (newname);
}
}
return true;

5
ld/ChangeLog
View File

@ -1,3 +1,8 @@
2002-07-14 H.J. Lu <hjl@gnu.org>
* ld.texinfo: Document a .symver takes precedence over a
version script.
2002-07-12 Alan Modra <amodra@bigpond.net.au>
* emulparams/elf64ppc.sh (ARCH): Set to powerpc:common64.

3
ld/ld.texinfo
View File

@ -3762,7 +3762,8 @@ __asm__(".symver original_foo,foo@@VERS_1.1");
in the C source file. This renames the function @samp{original_foo} to
be an alias for @samp{foo} bound to the version node @samp{VERS_1.1}.
The @samp{local:} directive can be used to prevent the symbol
@samp{original_foo} from being exported.
@samp{original_foo} from being exported. A @samp{.symver} directive
takes precedence over a version script.
The second GNU extension is to allow multiple versions of the same
function to appear in a given shared library. In this way you can make