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2003-02-07  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/x86_64/td_ta_map_lwp2thr.c: New file.
This commit is contained in:
Ulrich Drepper 2003-02-07 09:11:24 +00:00
parent 65c6899079
commit fef710d61d
3 changed files with 53 additions and 1 deletions
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2
linuxthreads/sysdeps/unix/sysv/linux/x86_64/vfork.S
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@ -31,7 +31,7 @@ ENTRY (__vfork)
cmpq $0, __libc_pthread_functions(%rip)
#else
.weak __pthread_fork
movq $__pthread_fork, %eax
movq $__pthread_fork, %rax
testq %rax, %rax
#endif
jne HIDDEN_JUMPTARGET (__fork)

4
nptl/ChangeLog
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@ -1,3 +1,7 @@
2003-02-07 Ulrich Drepper <drepper@redhat.com>
* sysdeps/x86_64/td_ta_map_lwp2thr.c: New file.
2003-02-06 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-popen1.

48
nptl/sysdeps/x86_64/td_ta_map_lwp2thr.c Normal file
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@ -0,0 +1,48 @@
/* Which thread is running on an LWP? x86-64 version.
Copyright (C) 1999, 2001, 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 1999.
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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include "thread_dbP.h"
#include <tls.h>
#include <sys/reg.h>
td_err_e
td_ta_map_lwp2thr (const td_thragent_t *ta, lwpid_t lwpid, td_thrhandle_t *th)
{
LOG ("td_ta_map_lwp2thr");
/* Test whether the TA parameter is ok. */
if (! ta_ok (ta))
return TD_BADTA;
prgregset_t regs;
if (ps_lgetregs (ta->ph, lwpid, regs) != PS_OK)
return TD_ERR;
/* Get the thread area for the addressed thread. */
if (ps_get_thread_area (ta->ph, lwpid, regs[FS] >> 3, &th->th_unique)
!= PS_OK)
return TD_ERR; /* XXX Other error value? */
/* Found it. Now complete the `td_thrhandle_t' object. */
th->th_ta_p = (td_thragent_t *) ta;
return TD_OK;
}