137 lines
3.5 KiB
C
137 lines
3.5 KiB
C
/*
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Generic test for malloc/free
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*/
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#include <esp_types.h>
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#include <stdio.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/semphr.h"
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#include "freertos/queue.h"
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#include "freertos/xtensa_api.h"
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#include "unity.h"
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#include "esp_heap_caps.h"
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#include "sdkconfig.h"
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static int **allocatedMem;
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static int noAllocated;
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static int tryAllocMem(void) {
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int i, j;
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const int allocateMaxK=1024*5; //try to allocate a max of 5MiB
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allocatedMem=malloc(sizeof(int *)*allocateMaxK);
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if (!allocatedMem) return 0;
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for (i=0; i<allocateMaxK; i++) {
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allocatedMem[i]=malloc(1024);
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if (allocatedMem[i]==NULL) break;
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for (j=0; j<1024/4; j++) allocatedMem[i][j]=(0xdeadbeef);
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}
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noAllocated=i;
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return i;
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}
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static void tryAllocMemFree(void) {
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int i, j;
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for (i=0; i<noAllocated; i++) {
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for (j=0; j<1024/4; j++) {
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TEST_ASSERT(allocatedMem[i][j]==(0xdeadbeef));
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}
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free(allocatedMem[i]);
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}
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free(allocatedMem);
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}
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TEST_CASE("Malloc/overwrite, then free all available DRAM", "[heap]")
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{
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int m1=0, m2=0;
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m1=tryAllocMem();
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tryAllocMemFree();
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m2=tryAllocMem();
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tryAllocMemFree();
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printf("Could allocate %dK on first try, %dK on 2nd try.\n", m1, m2);
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TEST_ASSERT(m1==m2);
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}
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#if CONFIG_SPIRAM_USE_MALLOC
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#if (CONFIG_SPIRAM_MALLOC_RESERVE_INTERNAL > 1024)
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TEST_CASE("Check if reserved DMA pool still can allocate even when malloc()'ed memory is exhausted", "[heap]")
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{
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char** dmaMem=malloc(sizeof(char*)*512);
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assert(dmaMem);
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int m=tryAllocMem();
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int i=0;
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for (i=0; i<512; i++) {
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dmaMem[i]=heap_caps_malloc(1024, MALLOC_CAP_DMA);
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if (dmaMem[i]==NULL) break;
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}
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for (int j=0; j<i; j++) free(dmaMem[j]);
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free(dmaMem);
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tryAllocMemFree();
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printf("Could allocate %dK of DMA memory after allocating all of %dK of normal memory.\n", i, m);
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TEST_ASSERT(i);
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}
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#endif
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#endif
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/* As you see, we are desperately trying to outsmart the compiler, so that it
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* doesn't warn about oversized allocations in the next two unit tests.
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* To be removed when we switch to GCC 8.2 and add
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* -Wno-alloc-size-larger-than=PTRDIFF_MAX to CFLAGS for this file.
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*/
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void* (*g_test_malloc_ptr)(size_t) = &malloc;
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void* (*g_test_calloc_ptr)(size_t, size_t) = &calloc;
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void* test_malloc_wrapper(size_t size)
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{
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return (*g_test_malloc_ptr)(size);
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}
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void* test_calloc_wrapper(size_t count, size_t size)
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{
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return (*g_test_calloc_ptr)(count, size);
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}
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TEST_CASE("alloc overflows should all fail", "[heap]")
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{
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/* allocates 8 bytes if size_t overflows */
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TEST_ASSERT_NULL(test_calloc_wrapper(SIZE_MAX / 2 + 4, 2));
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/* will overflow if any poisoning is enabled
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(should fail for sensible OOM reasons, otherwise) */
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TEST_ASSERT_NULL(test_malloc_wrapper(SIZE_MAX - 1));
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TEST_ASSERT_NULL(test_calloc_wrapper(SIZE_MAX - 1, 1));
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/* will overflow when the size is rounded up to word align it */
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TEST_ASSERT_NULL(heap_caps_malloc(SIZE_MAX-1, MALLOC_CAP_32BIT));
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TEST_ASSERT_NULL(heap_caps_malloc(SIZE_MAX-1, MALLOC_CAP_EXEC));
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}
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TEST_CASE("unreasonable allocs should all fail", "[heap]")
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{
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TEST_ASSERT_NULL(test_calloc_wrapper(16, 1024*1024));
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TEST_ASSERT_NULL(test_malloc_wrapper(16*1024*1024));
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TEST_ASSERT_NULL(test_malloc_wrapper(SIZE_MAX / 2));
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TEST_ASSERT_NULL(test_malloc_wrapper(SIZE_MAX - 256));
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TEST_ASSERT_NULL(test_malloc_wrapper(xPortGetFreeHeapSize() - 1));
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}
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TEST_CASE("malloc(0) should return a NULL pointer", "[heap]")
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{
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void *p;
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p = malloc(0);
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TEST_ASSERT(p == NULL);
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}
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