https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93065
Bug ID: 93065
Summary: libgomp: destructor missing to delete
goacc_cleanup_key
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libgomp
Assignee: unassigned at gcc dot gnu.org
Reporter: v.narang at samsung dot com
CC: jakub at gcc dot gnu.org
Target Milestone: ---
libgomp constructor creates goacc_cleanup_key on dlopen but doesn't delete key
on dlclose. dlopen and dlclose of libgomp.so exhausts pthread keys, which
results in pthread_key_create failure.
pthread_key_delete needs to be called by libgomp destructor.
Test Code:
#include <stdio.h>
#include <stdlib.h>
#include <dlfcn.h>
int main(int argc, char **argv)
{
void *handle;
double (*cosine)(double);
char *error;
while(1) {
handle = dlopen("/usr/lib/libgomp.so", RTLD_LAZY);
if (!handle) {
fprintf(stderr, "%s\n", dlerror());
exit(EXIT_FAILURE);
}
dlclose(handle);
}
exit(EXIT_SUCCESS);
}
Test Logs:
$./a.out
libgomp: could not create thread pool destructor
