mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
39f789df93
modify existing patch of TLSF rom and add multi heap patch to add the walker feature to the ROM implementation of the heap component.
102 lines
3.5 KiB
C
102 lines
3.5 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Unlicense OR CC0-1.0
|
|
*/
|
|
#include "unity.h"
|
|
#include "stdio.h"
|
|
|
|
#include "esp_heap_caps.h"
|
|
#include "esp_rom_sys.h"
|
|
#define PASS_CODE 0x9876BAAB
|
|
#define ALLOC_SIZE 16
|
|
|
|
static void calculate_block_metadata_size(size_t *header, size_t *footer)
|
|
{
|
|
*header = 0;
|
|
*footer = 0;
|
|
#if !CONFIG_HEAP_POISONING_DISABLED
|
|
*header += 8; // sizeof(poison_head_t)
|
|
*footer += 4; // sizeof(poison_tail_t)
|
|
#endif
|
|
#if CONFIG_HEAP_TASK_TRACKING
|
|
*header += 4; // sizeof(TaskHandle_t)
|
|
#endif
|
|
}
|
|
|
|
static bool block_found = false;
|
|
static bool heap_corrupted = false;
|
|
static bool heap_walker(walker_heap_into_t heap_info, walker_block_info_t block_info, void* user_data)
|
|
{
|
|
if ((intptr_t)heap_info.end - (intptr_t)block_info.ptr < block_info.size)
|
|
{
|
|
heap_corrupted = true;
|
|
return false;
|
|
}
|
|
|
|
TEST_ASSERT(*(uint32_t*)user_data == PASS_CODE);
|
|
TEST_ASSERT_NOT_NULL(block_info.ptr);
|
|
|
|
size_t metadata_size_head = 0;
|
|
size_t metadata_size_tail = 0;
|
|
calculate_block_metadata_size(&metadata_size_head, &metadata_size_tail);
|
|
|
|
/* look for the first 4 bytes pass code to identify the memory allocated in the test */
|
|
const uint32_t pass_code = *((uint32_t*)block_info.ptr + (metadata_size_head / sizeof(uint32_t)));
|
|
if (pass_code == PASS_CODE) {
|
|
TEST_ASSERT(block_info.size == ALLOC_SIZE + metadata_size_head + metadata_size_tail);
|
|
TEST_ASSERT_TRUE(block_info.used);
|
|
block_found = true;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/* This test assures the proper functioning of heap_caps_walk and heap_caps_walk_all
|
|
* when a corruption occurs in a random heap. The callback which detects the corruption
|
|
* returns false to the walker which should result in the interruption of the heap traversal
|
|
* by the walker instead of a crash.
|
|
*/
|
|
TEST_CASE("heap walker", "[heap]")
|
|
{
|
|
/* Allocate memory using the MALLOC_CAP_DEFAULT capability */
|
|
void *default_ptr = heap_caps_malloc(ALLOC_SIZE, MALLOC_CAP_DEFAULT);
|
|
TEST_ASSERT_NOT_NULL(default_ptr);
|
|
|
|
/* Write the pass code in the first word of the allocated memory */
|
|
*((uint32_t*)default_ptr) = (uint32_t)PASS_CODE;
|
|
|
|
/* call the heap_caps_walker to make sure the hook function is triggered
|
|
* and check that the allocated memory is found while walking the heap */
|
|
uint32_t user_code = PASS_CODE;
|
|
heap_caps_walk_all(heap_walker, &user_code);
|
|
TEST_ASSERT_TRUE(block_found);
|
|
}
|
|
|
|
/* This test assures the proper functioning of heap_caps_walk and heap_caps_walk_all
|
|
*/
|
|
TEST_CASE("heap walker corrupted heap detection", "[heap]")
|
|
{
|
|
/* Allocate memory using the MALLOC_CAP_DEFAULT capability */
|
|
void *default_ptr = heap_caps_malloc(ALLOC_SIZE, MALLOC_CAP_DEFAULT);
|
|
TEST_ASSERT_NOT_NULL(default_ptr);
|
|
|
|
size_t metadata_size_head = 0;
|
|
size_t metadata_size_tail = 0;
|
|
calculate_block_metadata_size(&metadata_size_head, &metadata_size_tail);
|
|
(void)metadata_size_tail;
|
|
|
|
/* corrupting the size field of the block metadata with a size bigger
|
|
* than the heap itself */
|
|
*((uint32_t*)default_ptr - (metadata_size_head / 4) - 1) = 0xFF000000;
|
|
|
|
/* Write the pass code in the first word of the allocated memory */
|
|
*((uint32_t*)default_ptr) = (uint32_t)PASS_CODE;
|
|
|
|
/* call the heap_caps_walker to make sure the hook function is triggered
|
|
* and check that the allocated memory is found while walking the heap */
|
|
uint32_t user_code = PASS_CODE;
|
|
heap_caps_walk_all(heap_walker, &user_code);
|
|
TEST_ASSERT_TRUE(heap_corrupted);
|
|
}
|