46 lines
930 B
C
46 lines
930 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <unistd.h>
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#include <sys/syscall.h>
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#ifndef SYS_set_thread_area
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#define SYS_set_thread_area 243
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#endif
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int main (void)
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{
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unsigned long tp, old_tp;
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int ret;
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asm volatile ("move $pid,%0" : "=r" (old_tp));
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old_tp &= ~0xff;
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ret = syscall (SYS_set_thread_area, 0xf0);
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if (ret != -1 || errno != EINVAL) {
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syscall (SYS_set_thread_area, old_tp);
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perror ("Invalid thread area accepted:");
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abort();
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}
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ret = syscall (SYS_set_thread_area, 0xeddeed00);
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if (ret != 0) {
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perror ("Valid thread area not accepted: ");
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abort ();
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}
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asm volatile ("move $pid,%0" : "=r" (tp));
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tp &= ~0xff;
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syscall (SYS_set_thread_area, old_tp);
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if (tp != 0xeddeed00) {
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* (volatile int *) 0 = 0;
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perror ("tls2");
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abort ();
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}
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printf ("pass\n");
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return EXIT_SUCCESS;
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}
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