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https://github.com/bytecodealliance/wasm-micro-runtime.git
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923e8d6471
- Fix windows wamrc link error: aot_generate_tempfile_name undefined. - Clear windows compile warnings. - And rename folder `samples/bh_atomic` and `samples/mem_allocator` to `samples/bh-atomic` and `samples/mem-allocator`.
59 lines
1.2 KiB
C
59 lines
1.2 KiB
C
/*
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* Copyright (C) 2023 Midokura Japan KK. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include "mem_alloc.h"
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char store[1000];
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int
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main(int argc, char **argv)
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{
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mem_allocator_t a = mem_allocator_create(store, sizeof(store));
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uint8_t *p;
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uint8_t *p2;
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p = mem_allocator_malloc(a, 256);
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printf("%p\n", p);
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if (p == NULL) {
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exit(1);
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}
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p = mem_allocator_realloc(a, p, 256 + 12);
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printf("%p\n", p);
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if (p == NULL) {
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exit(1);
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}
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/*
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* write some values to confuse the ems allocator.
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*
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* hmu = p + 256
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* hmu_set_ut(hmu, HMU_FC)
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* hmu_set_size(hmu, 256)
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* hmu_set_free_size(hmu)
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*/
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*(uint32_t *)(p + 256) = (1 << 30) | 0x20;
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*(uint32_t *)(p + 256 + 12 - 4) = 12;
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p2 = mem_allocator_malloc(a, 256);
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printf("%p\n", p2);
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if (p2 == NULL) {
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exit(1);
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}
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mem_allocator_free(a, p2);
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p2 = mem_allocator_malloc(a, 256);
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printf("%p\n", p2);
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if (p2 == NULL) {
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exit(1);
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}
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mem_allocator_free(a, p2);
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mem_allocator_free(a, p);
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}
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