| /* This testcase is part of GDB, the GNU debugger. |
| |
| Copyright 2009-2017 Free Software Foundation, Inc. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program 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 General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. |
| |
| Test that GDB doesn't lose an event for a thread it didn't know |
| about, until an event is reported for it. */ |
| |
| #define _GNU_SOURCE |
| #include <sched.h> |
| #include <assert.h> |
| #include <stdlib.h> |
| #include <signal.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| #include <sys/syscall.h> |
| |
| #include <features.h> |
| #ifdef __UCLIBC__ |
| #if !(defined(__UCLIBC_HAS_MMU__) || defined(__ARCH_HAS_MMU__)) |
| #define HAS_NOMMU |
| #endif |
| #endif |
| |
| #define STACK_SIZE 0x1000 |
| |
| static int |
| tkill (int lwpid, int signo) |
| { |
| return syscall (__NR_tkill, lwpid, signo); |
| } |
| |
| static pid_t |
| gettid (void) |
| { |
| return syscall (__NR_gettid); |
| } |
| |
| static int |
| fn (void *unused) |
| { |
| tkill (gettid (), SIGUSR1); |
| return 0; |
| } |
| |
| int |
| main (int argc, char **argv) |
| { |
| unsigned char *stack; |
| int new_pid; |
| |
| stack = malloc (STACK_SIZE); |
| assert (stack != NULL); |
| |
| new_pid = clone (fn, stack + STACK_SIZE, CLONE_FILES |
| #if defined(__UCLIBC__) && defined(HAS_NOMMU) |
| | CLONE_VM |
| #endif /* defined(__UCLIBC__) && defined(HAS_NOMMU) */ |
| , NULL, NULL, NULL, NULL); |
| assert (new_pid > 0); |
| |
| return 0; |
| } |