mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-21 20:40:05 +00:00
c88ffc239e
Commit 384ca55174 from 2007 added this to
nss/XXX-lookup.c:
+#ifndef NO_COMPAT
+int
+internal_function attribute_compat_text_section
+DB_COMPAT_FCT (service_user **ni, const char *fct_name, void **fctp)
+{
+ return DB_LOOKUP_FCT (ni, fct_name, NULL, fctp);
+}
+#endif
That is, it adds a pseudo-compat function with an internal_function
attribute. The function it was supposed to replace did not have the
attribute:
extern int DB_LOOKUP_FCT (service_user **ni, const char *fct_name,
- void **fctp) internal_function;
+ const char *fct2_name, void **fctp)
+ internal_function;
This changed the calling convention on i386 for the following
functions in the public ABI:
__nss_passwd_lookup
__nss_group_lookup
__nss_hosts_lookup
This commit replaces the functions with always-failing stubs,
with true compat symbols. Due to a happy accident, the calling
convention of the stub is identical for the internal_function
and non-internal_function case on i386.
In addition, this commit auto-generates the __nss_*_lookup2
function declarations as part of <nsswitch.h>.
43 lines
1.7 KiB
C
43 lines
1.7 KiB
C
/* Compatibility stubs of accidentally exported __nss_*_lookup functions.
|
|
Copyright (C) 2017 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <shlib-compat.h>
|
|
#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_27)
|
|
|
|
# include <errno.h>
|
|
# include <nsswitch.h>
|
|
|
|
/* On i386, the function calling convention changed from the standard
|
|
ABI calling convention to three register parameters in glibc 2.8.
|
|
The following error-returning stub happens to be compatible with
|
|
glibc 2.7 and earlier and glibc 2.8 and later, even on i386. */
|
|
int
|
|
attribute_compat_text_section
|
|
__nss_passwd_lookup (service_user **ni, const char *fct_name, void **fctp)
|
|
{
|
|
__set_errno (ENOSYS);
|
|
return -1;
|
|
}
|
|
compat_symbol (libc, __nss_passwd_lookup, __nss_passwd_lookup, GLIBC_2_0);
|
|
strong_alias (__nss_passwd_lookup, __nss_group_lookup)
|
|
compat_symbol (libc, __nss_group_lookup, __nss_group_lookup, GLIBC_2_0);
|
|
strong_alias (__nss_passwd_lookup, __nss_hosts_lookup)
|
|
compat_symbol (libc, __nss_hosts_lookup, __nss_hosts_lookup, GLIBC_2_0);
|
|
|
|
#endif /* SHLIB_COMPAT */
|