The Tor Browser: memory/jemalloc/src/test/mremap.c@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 #define	JEMALLOC_MANGLE

     2 #include "jemalloc_test.h"

     4 int

     5 main(void)

6 {

     7 	int ret, err;

     8 	size_t sz, lg_chunk, chunksize, i;

     9 	char *p, *q;

    11 	malloc_printf("Test begin\n");

    13 	sz = sizeof(lg_chunk);

    14 	if ((err = mallctl("opt.lg_chunk", &lg_chunk, &sz, NULL, 0))) {

    15 		assert(err != ENOENT);

    16 		malloc_printf("%s(): Error in mallctl(): %s\n", __func__,

    17 		    strerror(err));

    18 		ret = 1;

    19 		goto label_return;

    20 	}

    21 	chunksize = ((size_t)1U) << lg_chunk;

    23 	p = (char *)malloc(chunksize);

    24 	if (p == NULL) {

    25 		malloc_printf("malloc(%zu) --> %p\n", chunksize, p);

    26 		ret = 1;

    27 		goto label_return;

    28 	}

    29 	memset(p, 'a', chunksize);

    31 	q = (char *)realloc(p, chunksize * 2);

    32 	if (q == NULL) {

    33 		malloc_printf("realloc(%p, %zu) --> %p\n", p, chunksize * 2,

    34 		    q);

    35 		ret = 1;

    36 		goto label_return;

    37 	}

    38 	for (i = 0; i < chunksize; i++) {

    39 		assert(q[i] == 'a');

    40 	}

    42 	p = q;

    44 	q = (char *)realloc(p, chunksize);

    45 	if (q == NULL) {

    46 		malloc_printf("realloc(%p, %zu) --> %p\n", p, chunksize, q);

    47 		ret = 1;

    48 		goto label_return;

    49 	}

    50 	for (i = 0; i < chunksize; i++) {

    51 		assert(q[i] == 'a');

    52 	}

    54 	free(q);

    56 	ret = 0;

    57 label_return:

    58 	malloc_printf("Test end\n");

    59 	return (ret);

    60 }

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