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https://sourceware.org/git/glibc.git
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81 lines
1.8 KiB
C
81 lines
1.8 KiB
C
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/* Check LD_AUDIT with static TLS.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <ctype.h>
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#include <stdlib.h>
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#include <link.h>
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#define tls_ie __attribute__ ((tls_model ("initial-exec")))
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__thread int tls_var0 tls_ie;
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__thread int tls_var1 tls_ie = 0x10;
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/* Defined at tst-auditmod21b.so */
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extern __thread int tls_var2;
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extern __thread int tls_var3;
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static volatile int out;
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static void
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call_libc (void)
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{
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/* isspace accesses the initial-exec glibc TLS variables, which are
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setup in glibc initialization. */
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out = isspace (' ');
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}
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unsigned int
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la_version (unsigned int v)
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{
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tls_var0 = 0x1;
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if (tls_var1 != 0x10)
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abort ();
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tls_var1 = 0x20;
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tls_var2 = 0x2;
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if (tls_var3 != 0x20)
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abort ();
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tls_var3 = 0x40;
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call_libc ();
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return LAV_CURRENT;
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}
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unsigned int
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la_objopen (struct link_map* map, Lmid_t lmid, uintptr_t* cookie)
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{
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call_libc ();
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*cookie = (uintptr_t) map;
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return 0;
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}
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void
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la_activity (uintptr_t* cookie, unsigned int flag)
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{
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if (tls_var0 != 0x1 || tls_var1 != 0x20)
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abort ();
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call_libc ();
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}
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void
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la_preinit (uintptr_t* cookie)
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{
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call_libc ();
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}
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