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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.2/] [gdb/] [testsuite/] [gdb.threads/] [current-lwp-dead.c] - Rev 330
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/* This testcase is part of GDB, the GNU debugger. Copyright 2009, 2010 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/>. Do not use threads as we need to exploit a bug in LWP code masked by the threads code otherwise. INFERIOR_PTID must point to exited LWP. Here we use the initial LWP as it is automatically INFERIOR_PTID for GDB. Finally we need to call target_resume (RESUME_ALL, ...) which we invoke by NEW_THREAD_EVENT (called from the new LWP as initial LWP is exited now). */ #define _GNU_SOURCE #include <sched.h> #include <assert.h> #include <unistd.h> #include <stdlib.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 fn_return (void *unused) { return 0; /* at-fn_return */ } static int fn (void *unused) { int i; unsigned char *stack; int new_pid; i = sleep (1); assert (i == 0); stack = malloc (STACK_SIZE); assert (stack != NULL); new_pid = clone (fn_return, 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; } 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; }