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https://github.com/Zenithsiz/ftmemsim-valgrind.git
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dbc0ecfa9f
can be used in error messages. That should be helpful when debugging multithreaded applications. Patch by Matthias Schwarzott <zzam@gentoo.org> with some minor modifications. Fixes BZ 322254. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13553
81 lines
1.2 KiB
C
81 lines
1.2 KiB
C
//#define _GNU_SOURCE
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#include <stdio.h>
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#include <pthread.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/prctl.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <assert.h>
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static pthread_t children[3];
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void bad_things(int offset)
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{
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char* m = malloc(sizeof(char)*offset);
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m[offset] = 0;
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free(m);
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}
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void* child_fn_2 ( void* arg )
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{
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const char* threadname = "012345678901234";
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pthread_setname_np(pthread_self(), threadname);
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bad_things(4);
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return NULL;
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}
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void* child_fn_1 ( void* arg )
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{
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const char* threadname = "try1";
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int r;
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pthread_setname_np(pthread_self(), threadname);
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bad_things(3);
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r = pthread_create(&children[2], NULL, child_fn_2, NULL);
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assert(!r);
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r = pthread_join(children[2], NULL);
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assert(!r);
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return NULL;
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}
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void* child_fn_0 ( void* arg )
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{
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int r;
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bad_things(2);
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r = pthread_create(&children[1], NULL, child_fn_1, NULL);
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assert(!r);
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r = pthread_join(children[1], NULL);
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assert(!r);
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return NULL;
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}
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int main(int argc, const char** argv)
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{
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int r;
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bad_things(1);
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r = pthread_create(&children[0], NULL, child_fn_0, NULL);
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assert(!r);
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r = pthread_join(children[0], NULL);
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assert(!r);
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bad_things(5);
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return 0;
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}
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