mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-25 12:11:10 +00:00
2b778ceb40
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
120 lines
3.2 KiB
C
120 lines
3.2 KiB
C
/* Validate a thread handle.
|
|
Copyright (C) 1999-2021 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, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include "thread_dbP.h"
|
|
#include <stdbool.h>
|
|
|
|
td_err_e
|
|
__td_ta_stack_user (td_thragent_t *ta, psaddr_t *plist)
|
|
{
|
|
if (__td_ta_rtld_global (ta))
|
|
return DB_GET_FIELD_ADDRESS (*plist, ta, ta->ta_addr__rtld_global,
|
|
rtld_global, _dl_stack_user, 0);
|
|
else
|
|
{
|
|
if (ta->ta_addr__dl_stack_user == 0
|
|
&& td_mod_lookup (ta->ph, NULL, SYM__dl_stack_user,
|
|
&ta->ta_addr__dl_stack_user) != PS_OK)
|
|
return TD_ERR;
|
|
*plist = ta->ta_addr__dl_stack_user;
|
|
return TD_OK;
|
|
}
|
|
}
|
|
|
|
td_err_e
|
|
__td_ta_stack_used (td_thragent_t *ta, psaddr_t *plist)
|
|
{
|
|
|
|
if (__td_ta_rtld_global (ta))
|
|
return DB_GET_FIELD_ADDRESS (*plist, ta, ta->ta_addr__rtld_global,
|
|
rtld_global, _dl_stack_used, 0);
|
|
else
|
|
{
|
|
if (ta->ta_addr__dl_stack_used == 0
|
|
&& td_mod_lookup (ta->ph, NULL, SYM__dl_stack_used,
|
|
&ta->ta_addr__dl_stack_used) != PS_OK)
|
|
return TD_ERR;
|
|
*plist = ta->ta_addr__dl_stack_used;
|
|
return TD_OK;
|
|
}
|
|
}
|
|
|
|
static td_err_e
|
|
check_thread_list (const td_thrhandle_t *th, psaddr_t head, bool *uninit)
|
|
{
|
|
td_err_e err;
|
|
psaddr_t next, ofs;
|
|
|
|
err = DB_GET_FIELD (next, th->th_ta_p, head, list_t, next, 0);
|
|
if (err == TD_OK)
|
|
{
|
|
if (next == 0)
|
|
{
|
|
*uninit = true;
|
|
return TD_NOTHR;
|
|
}
|
|
err = DB_GET_FIELD_ADDRESS (ofs, th->th_ta_p, 0, pthread, list, 0);
|
|
}
|
|
|
|
while (err == TD_OK)
|
|
{
|
|
if (next == head)
|
|
return TD_NOTHR;
|
|
|
|
if (next - (ofs - (psaddr_t) 0) == th->th_unique)
|
|
return TD_OK;
|
|
|
|
err = DB_GET_FIELD (next, th->th_ta_p, next, list_t, next, 0);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
|
|
td_err_e
|
|
td_thr_validate (const td_thrhandle_t *th)
|
|
{
|
|
td_err_e err;
|
|
psaddr_t list;
|
|
|
|
LOG ("td_thr_validate");
|
|
|
|
/* First check the list with threads using user allocated stacks. */
|
|
bool uninit = false;
|
|
err = __td_ta_stack_user (th->th_ta_p, &list);
|
|
if (err == TD_OK)
|
|
err = check_thread_list (th, list, &uninit);
|
|
|
|
/* If our thread is not on this list search the list with stack
|
|
using implementation allocated stacks. */
|
|
if (err == TD_NOTHR)
|
|
{
|
|
err = __td_ta_stack_used (th->th_ta_p, &list);
|
|
if (err == TD_OK)
|
|
err = check_thread_list (th, list, &uninit);
|
|
|
|
if (err == TD_NOTHR && uninit && th->th_unique == 0)
|
|
/* __pthread_initialize_minimal has not run yet.
|
|
There is only the special case thread handle. */
|
|
err = TD_OK;
|
|
}
|
|
|
|
return err;
|
|
}
|