85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
/*
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* This file is part of the UCB release of Plan 9. It is subject to the license
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* terms in the LICENSE file found in the top-level directory of this
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* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
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* part of the UCB release of Plan 9, including this file, may be copied,
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* modified, propagated, or distributed except according to the terms contained
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* in the LICENSE file.
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*/
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#include <u.h>
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#include <lib9.h>
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extern void **_privates;
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extern int _nprivates;
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void
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main(void)
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{
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unsigned char buf[512];
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uint64_t i, fail = 0;
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/* _nprivates is a private things of libc, over which we should
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* never do assumptions. So we are breaking the interface here:
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* let's just do it once, to read how many privates we have at
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* the beginning. But note that nowhere is written that
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* _nprivate is kept constant!
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*/
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int nprivatesAtStart = _nprivates;
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if (_privates == nil) {
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fprint(2, "_privates is nil\n");
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fail++;
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}
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if (nprivatesAtStart == 0) {
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fprint(2, "_nprivates is 0\n");
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fail++;
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}
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for (i = 0; i < nprivatesAtStart; i++) {
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_privates[i] = (void *)(0x77665544332210 + i);
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}
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memset(buf, 0, sizeof buf);
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for (i = 0; i < nprivatesAtStart; i++) {
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if (_privates[i] != (void *)(0x77665544332210 + i)){
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fprint(2, "_privates[%d] = %p\n", i, _privates[i]);
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fail++;
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}
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}
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void*** p = malloc(nprivatesAtStart*sizeof(void**));
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for (i = 0; i < nprivatesAtStart; i++) {
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p[i] = privalloc();
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if(p[i] == nil){
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fail++;
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fprint(2, "privalloc[%d] nil: %p\n", i, p[i]);
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}
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}
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p[i] = privalloc();
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if(p[i] != nil){
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fail++;
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fprint(2, "privalloc[_nprivates (%d)] not nil: %p\n", i, p[i]);
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}
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for (i = 0; i < nprivatesAtStart; i++) {
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*(p[i]) = (void*)i;
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}
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for (i = 0; i < nprivatesAtStart; i++) {
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if(*(p[i]) != (void*)i){
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fprint(2, "p[%d] != %d\n", i, i);
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fail++;
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}
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}
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if (fail > 0) {
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print("FAIL (%d times)\n", fail);
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exits("FAIL");
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}
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print("PASS\n");
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exits("PASS");
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}
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