3cf3c5d9dd
-----------------------------
Most of the userland changes are in libc. For both the alpha
and the i386 setjmp has been changed to accomodate for the
new sigset_t. Internally, libc is mostly rewritten to use the
new syscalls. The exception is in compat-43/sigcompat.c
The POSIX thread library has also been rewritten to use the
new sigset_t. Except, that it currently only handles NSIG
signals instead of the maximum _SIG_MAXSIG. This should not
be a problem because current applications don't use any
signals higher than NSIG.
There are version bumps for the following libraries:
libdialog
libreadline
libc
libc_r
libedit
libftpio
libss
These libraries either a) have one of the modified structures
visible in the interface, or b) use sigset_t internally and
may cause breakage if new binaries are used against libraries
that don't have the sigset_t change. This not an immediate
issue, but will be as soon as applications start using the
new range to its fullest.
NOTE: libncurses already had an version bump and has not been
given one now.
NOTE: doscmd is a real casualty and has been disconnected for
the moment. Reconnection will eventually happen after
doscmd has been fixed. I'm aware that being the last one
to touch it, I'm automaticly promoted to being maintainer.
According to good taste this means that I will receive a
badge which either will be glued or mechanically stapled,
drilled or otherwise violently forced onto me :-)
NOTE: pcvt/vttest cannot be compiled with -traditional. The
change cause sys/types to be included along the way which
contains the const and volatile modifiers. I don't consider
this a solution, but more a workaround.
312 lines
10 KiB
C
312 lines
10 KiB
C
/*
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* Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by John Birrell.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <stdio.h>
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#include <fcntl.h>
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#include <string.h>
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#include <unistd.h>
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#ifdef _THREAD_SAFE
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#include <pthread.h>
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#include <errno.h>
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#include "pthread_private.h"
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struct s_thread_info {
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enum pthread_state state;
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char *name;
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};
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/* Static variables: */
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static const struct s_thread_info thread_info[] = {
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{PS_RUNNING , "Running"},
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{PS_SIGTHREAD , "Waiting on signal thread"},
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{PS_MUTEX_WAIT , "Waiting on a mutex"},
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{PS_COND_WAIT , "Waiting on a condition variable"},
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{PS_FDLR_WAIT , "Waiting for a file read lock"},
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{PS_FDLW_WAIT , "Waiting for a file write lock"},
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{PS_FDR_WAIT , "Waiting for read"},
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{PS_FDW_WAIT , "Waiting for write"},
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{PS_FILE_WAIT , "Waiting for FILE lock"},
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{PS_POLL_WAIT , "Waiting on poll"},
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{PS_SELECT_WAIT , "Waiting on select"},
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{PS_SLEEP_WAIT , "Sleeping"},
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{PS_WAIT_WAIT , "Waiting process"},
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{PS_SIGSUSPEND , "Suspended, waiting for a signal"},
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{PS_SIGWAIT , "Waiting for a signal"},
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{PS_SPINBLOCK , "Waiting for a spinlock"},
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{PS_JOIN , "Waiting to join"},
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{PS_SUSPENDED , "Suspended"},
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{PS_DEAD , "Dead"},
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{PS_DEADLOCK , "Deadlocked"},
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{PS_STATE_MAX , "Not a real state!"}
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};
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void
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_thread_dump_info(void)
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{
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char s[512];
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int fd;
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int i;
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int j;
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pthread_t pthread;
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char tmpfile[128];
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pq_list_t *pq_list;
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for (i = 0; i < 100000; i++) {
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snprintf(tmpfile, sizeof(tmpfile), "/tmp/uthread.dump.%u.%i",
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getpid(), i);
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/* Open the dump file for append and create it if necessary: */
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if ((fd = _thread_sys_open(tmpfile, O_RDWR | O_CREAT | O_EXCL,
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0666)) < 0) {
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/* Can't open the dump file. */
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if (errno == EEXIST)
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continue;
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/*
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* We only need to continue in case of
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* EEXIT error. Most other error
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* codes means that we will fail all
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* the times.
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*/
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return;
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} else {
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break;
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}
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}
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if (i==100000) {
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/* all 100000 possibilities are in use :( */
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return;
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} else {
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/* Output a header for active threads: */
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strcpy(s, "\n\n=============\nACTIVE THREADS\n\n");
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_thread_sys_write(fd, s, strlen(s));
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/* Enter a loop to report each thread in the global list: */
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TAILQ_FOREACH(pthread, &_thread_list, tle) {
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/* Find the state: */
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for (j = 0; j < (sizeof(thread_info) /
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sizeof(struct s_thread_info)) - 1; j++)
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if (thread_info[j].state == pthread->state)
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break;
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/* Output a record for the current thread: */
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snprintf(s, sizeof(s),
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"--------------------\nThread %p (%s) prio %3d state %s [%s:%d]\n",
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pthread, (pthread->name == NULL) ?
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"":pthread->name, pthread->base_priority,
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thread_info[j].name,
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pthread->fname,pthread->lineno);
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_thread_sys_write(fd, s, strlen(s));
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/* Check if this is the running thread: */
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if (pthread == _thread_run) {
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/* Output a record for the running thread: */
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strcpy(s, "This is the running thread\n");
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_thread_sys_write(fd, s, strlen(s));
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}
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/* Check if this is the initial thread: */
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if (pthread == _thread_initial) {
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/* Output a record for the initial thread: */
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strcpy(s, "This is the initial thread\n");
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_thread_sys_write(fd, s, strlen(s));
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}
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/* Process according to thread state: */
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switch (pthread->state) {
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/* File descriptor read lock wait: */
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case PS_FDLR_WAIT:
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case PS_FDLW_WAIT:
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case PS_FDR_WAIT:
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case PS_FDW_WAIT:
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/* Write the lock details: */
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snprintf(s, sizeof(s), "fd %d[%s:%d]",
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pthread->data.fd.fd,
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pthread->data.fd.fname,
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pthread->data.fd.branch);
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_thread_sys_write(fd, s, strlen(s));
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snprintf(s, sizeof(s), "owner %pr/%pw\n",
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_thread_fd_table[pthread->data.fd.fd]->r_owner,
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_thread_fd_table[pthread->data.fd.fd]->w_owner);
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_thread_sys_write(fd, s, strlen(s));
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break;
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case PS_SIGWAIT:
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snprintf(s, sizeof(s), "sigmask (hi)");
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_thread_sys_write(fd, s, strlen(s));
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for (i = _SIG_WORDS - 1; i >= 0; i--) {
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snprintf(s, sizeof(s), "%08x\n",
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pthread->sigmask.__bits[i]);
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_thread_sys_write(fd, s, strlen(s));
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}
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snprintf(s, sizeof(s), "(lo)\n");
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_thread_sys_write(fd, s, strlen(s));
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break;
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/*
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* Trap other states that are not explicitly
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* coded to dump information:
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*/
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default:
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/* Nothing to do here. */
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break;
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}
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}
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/* Output a header for ready threads: */
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strcpy(s, "\n\n=============\nREADY THREADS\n\n");
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_thread_sys_write(fd, s, strlen(s));
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/* Enter a loop to report each thread in the ready queue: */
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TAILQ_FOREACH (pq_list, &_readyq.pq_queue, pl_link) {
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TAILQ_FOREACH(pthread, &pq_list->pl_head, pqe) {
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/* Find the state: */
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for (j = 0; j < (sizeof(thread_info) /
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sizeof(struct s_thread_info)) - 1; j++)
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if (thread_info[j].state == pthread->state)
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break;
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/* Output a record for the current thread: */
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snprintf(s, sizeof(s),
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"--------------------\nThread %p (%s) prio %3d state %s [%s:%d]\n",
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pthread, (pthread->name == NULL) ?
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"":pthread->name, pthread->base_priority,
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thread_info[j].name,
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pthread->fname,pthread->lineno);
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_thread_sys_write(fd, s, strlen(s));
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}
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}
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/* Output a header for waiting threads: */
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strcpy(s, "\n\n=============\nWAITING THREADS\n\n");
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_thread_sys_write(fd, s, strlen(s));
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/* Enter a loop to report each thread in the waiting queue: */
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TAILQ_FOREACH (pthread, &_waitingq, pqe) {
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/* Find the state: */
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for (j = 0; j < (sizeof(thread_info) /
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sizeof(struct s_thread_info)) - 1; j++)
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if (thread_info[j].state == pthread->state)
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break;
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/* Output a record for the current thread: */
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snprintf(s, sizeof(s),
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"--------------------\nThread %p (%s) prio %3d state %s [%s:%d]\n",
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pthread, (pthread->name == NULL) ?
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"":pthread->name, pthread->base_priority,
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thread_info[j].name,
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pthread->fname,pthread->lineno);
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_thread_sys_write(fd, s, strlen(s));
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}
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/* Output a header for threads in the work queue: */
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strcpy(s, "\n\n=============\nTHREADS IN WORKQ\n\n");
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_thread_sys_write(fd, s, strlen(s));
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/* Enter a loop to report each thread in the waiting queue: */
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TAILQ_FOREACH (pthread, &_workq, qe) {
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/* Find the state: */
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for (j = 0; j < (sizeof(thread_info) /
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sizeof(struct s_thread_info)) - 1; j++)
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if (thread_info[j].state == pthread->state)
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break;
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/* Output a record for the current thread: */
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snprintf(s, sizeof(s),
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"--------------------\nThread %p (%s) prio %3d state %s [%s:%d]\n",
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pthread, (pthread->name == NULL) ?
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"":pthread->name, pthread->base_priority,
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thread_info[j].name,
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pthread->fname,pthread->lineno);
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_thread_sys_write(fd, s, strlen(s));
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}
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/* Check if there are no dead threads: */
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if (TAILQ_FIRST(&_dead_list) == NULL) {
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/* Output a record: */
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strcpy(s, "\n\nTHERE ARE NO DEAD THREADS\n");
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_thread_sys_write(fd, s, strlen(s));
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} else {
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/* Output a header for dead threads: */
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strcpy(s, "\n\nDEAD THREADS\n\n");
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_thread_sys_write(fd, s, strlen(s));
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/*
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* Enter a loop to report each thread in the global
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* dead thread list:
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*/
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TAILQ_FOREACH(pthread, &_dead_list, dle) {
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/* Output a record for the current thread: */
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snprintf(s, sizeof(s),
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"Thread %p prio %3d [%s:%d]\n",
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pthread, pthread->base_priority,
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pthread->fname,pthread->lineno);
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_thread_sys_write(fd, s, strlen(s));
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}
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}
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/* Output a header for file descriptors: */
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snprintf(s, sizeof(s), "\n\n=============\nFILE DESCRIPTOR TABLE (table size %d)\n\n",_thread_dtablesize);
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_thread_sys_write(fd, s, strlen(s));
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/* Enter a loop to report file descriptor lock usage: */
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for (i = 0; i < _thread_dtablesize; i++) {
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/*
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* Check if memory is allocated for this file
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* descriptor:
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*/
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if (_thread_fd_table[i] != NULL) {
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/* Report the file descriptor lock status: */
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snprintf(s, sizeof(s),
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"fd[%3d] read owner %p count %d [%s:%d]\n write owner %p count %d [%s:%d]\n",
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i,
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_thread_fd_table[i]->r_owner,
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_thread_fd_table[i]->r_lockcount,
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_thread_fd_table[i]->r_fname,
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_thread_fd_table[i]->r_lineno,
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_thread_fd_table[i]->w_owner,
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_thread_fd_table[i]->w_lockcount,
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_thread_fd_table[i]->w_fname,
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_thread_fd_table[i]->w_lineno);
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_thread_sys_write(fd, s, strlen(s));
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}
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}
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/* Close the dump file: */
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_thread_sys_close(fd);
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}
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return;
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}
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/* Set the thread name for debug: */
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void
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pthread_set_name_np(pthread_t thread, char *name)
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{
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/* Check if the caller has specified a valid thread: */
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if (thread != NULL && thread->magic == PTHREAD_MAGIC)
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thread->name = strdup(name);
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return;
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}
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#endif
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