mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-14 01:00:07 +00:00
81 lines
1.8 KiB
C
81 lines
1.8 KiB
C
/* Check LD_AUDIT with static TLS.
|
|
Copyright (C) 2022-2023 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <ctype.h>
|
|
#include <stdlib.h>
|
|
#include <link.h>
|
|
|
|
#define tls_ie __attribute__ ((tls_model ("initial-exec")))
|
|
|
|
__thread int tls_var0 tls_ie;
|
|
__thread int tls_var1 tls_ie = 0x10;
|
|
|
|
/* Defined at tst-auditmod21b.so */
|
|
extern __thread int tls_var2;
|
|
extern __thread int tls_var3;
|
|
|
|
static volatile int out;
|
|
|
|
static void
|
|
call_libc (void)
|
|
{
|
|
/* isspace accesses the initial-exec glibc TLS variables, which are
|
|
setup in glibc initialization. */
|
|
out = isspace (' ');
|
|
}
|
|
|
|
unsigned int
|
|
la_version (unsigned int v)
|
|
{
|
|
tls_var0 = 0x1;
|
|
if (tls_var1 != 0x10)
|
|
abort ();
|
|
tls_var1 = 0x20;
|
|
|
|
tls_var2 = 0x2;
|
|
if (tls_var3 != 0x20)
|
|
abort ();
|
|
tls_var3 = 0x40;
|
|
|
|
call_libc ();
|
|
|
|
return LAV_CURRENT;
|
|
}
|
|
|
|
unsigned int
|
|
la_objopen (struct link_map* map, Lmid_t lmid, uintptr_t* cookie)
|
|
{
|
|
call_libc ();
|
|
*cookie = (uintptr_t) map;
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
la_activity (uintptr_t* cookie, unsigned int flag)
|
|
{
|
|
if (tls_var0 != 0x1 || tls_var1 != 0x20)
|
|
abort ();
|
|
call_libc ();
|
|
}
|
|
|
|
void
|
|
la_preinit (uintptr_t* cookie)
|
|
{
|
|
call_libc ();
|
|
}
|