Update.
2004-01-08 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/x86_64/clone.S (__clone): Add cfi_endproc right before syscall and cfi_startproc before PSEUDO_END. Clear %rbp in thread_start.
This commit is contained in:
Ulrich Drepper
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249a3d0c4f
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@ -1,3 +1,9 @@
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2004-01-08 Jakub Jelinek <jakub@redhat.com>
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* sysdeps/unix/sysv/linux/x86_64/clone.S (__clone): Add cfi_endproc
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right before syscall and cfi_startproc before PSEUDO_END.
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Clear %rbp in thread_start.
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2004-01-05 Jakub Jelinek <jakub@redhat.com>
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* posix/regcomp.c (regcomp): Fix comment typo.
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@ -1,3 +1,8 @@
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2004-01-08 Jakub Jelinek <jakub@redhat.com>
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* Makefile (tests): Add tst-backtrace1.
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* tst-backtrace1.c: New test.
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2003-12-11 Ulrich Weigand <uweigand@de.ibm.com>
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* sysdeps/alpha/tls.h (DB_THREAD_SELF): Pass bit size of thread
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@ -1,4 +1,4 @@
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# Copyright (C) 2002, 2003 Free Software Foundation, Inc.
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# Copyright (C) 2002, 2003, 2004 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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@ -235,6 +235,7 @@ tests = tst-attr1 tst-attr2 tst-attr3 \
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tst-clock1 tst-clock2 \
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tst-context1 \
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tst-sched1 \
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tst-backtrace1 \
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tst-oddstacklimit
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# This sets the stack resource limit to 1023kb, which is not a multiple
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@ -0,0 +1,86 @@
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/* Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
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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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <execinfo.h>
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#include <pthread.h>
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#include <stdio.h>
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#define BT_SIZE 64
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void *bt_array[BT_SIZE];
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int bt_cnt;
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int
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do_bt (void)
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{
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bt_cnt = backtrace (bt_array, BT_SIZE);
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return 56;
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}
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int
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call_do_bt (void)
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{
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return do_bt () + 1;
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}
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void *
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tf (void *arg)
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{
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if (call_do_bt () != 57)
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return (void *) 1L;
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return NULL;
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}
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int
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do_test (void)
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{
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pthread_t th;
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if (pthread_create (&th, NULL, tf, NULL))
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{
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puts ("create failed");
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return 1;
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}
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void *res;
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if (pthread_join (th, &res))
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{
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puts ("join failed");
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return 1;
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}
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if (res != NULL)
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{
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puts ("thread failed");
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return 1;
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}
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char **text = backtrace_symbols (bt_array, bt_cnt);
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if (text == NULL)
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{
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puts ("backtrace_symbols failed");
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return 1;
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}
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for (int i = 0; i < bt_cnt; ++i)
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puts (text[i]);
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return 0;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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@ -1,4 +1,4 @@
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/* Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
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/* Copyright (C) 2001, 2002, 2003, 2004 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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@ -72,6 +72,10 @@ ENTRY (BP_SYM (__clone))
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movq %r9, %r8
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movq 8(%rsp), %r10
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movq $SYS_ify(clone),%rax
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/* End FDE now, because in the child the unwind info will be
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wrong. */
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cfi_endproc;
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syscall
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testq %rax,%rax
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@ -82,6 +86,10 @@ L(pseudo_end):
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ret
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thread_start:
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/* Clear the frame pointer. The ABI suggests this be done, to mark
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the outermost frame obviously. */
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xorq %rbp, %rbp
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/* Set up arguments for the function call. */
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popq %rax /* Function to call. */
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popq %rdi /* Argument. */
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@ -90,6 +98,7 @@ thread_start:
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movq %rax, %rdi
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call HIDDEN_JUMPTARGET (_exit)
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cfi_startproc;
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PSEUDO_END (BP_SYM (__clone))
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weak_alias (BP_SYM (__clone), BP_SYM (clone))
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