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heap: Add memory protection activation test

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Check that when trying to allocate in IRAM with the system memory protection enabled,
null pointer is returned, or that an address in IRAM is returned if the memory protection
is disabled.
This commit is contained in:
Guillaume Souchere
2023-01-23 06:59:58 +01:00
parent a5d6f62e7e
commit 11f99ef649
4 changed files with 37 additions and 6 deletions
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20
components/heap/test_apps/main/test_malloc_caps.c
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@@ -278,3 +278,23 @@ TEST_CASE("RTC memory shoule be lowest priority and its free size should be big
free(ptr);
}
#endif
TEST_CASE("test memory protection features", "[heap][mem_prot]")
{
// try to allocate memory in IRAM and check that if memory protection is active,
// no memory is being allocated
uint32_t *iram_ptr = heap_caps_malloc(4, MALLOC_CAP_EXEC);
#ifndef CONFIG_ESP_SYSTEM_MEMPROT_FEATURE
// System memory protection not active, check that iram_ptr is not null
// Check that iram_ptr is in IRAM
TEST_ASSERT_NOT_NULL(iram_ptr);
TEST_ASSERT(true == esp_ptr_in_iram(iram_ptr));
// free the memory
heap_caps_free(iram_ptr);
#else
// System memory protection is active, DIRAM seen as DRAM, iram_ptr should be null
TEST_ASSERT_NULL(iram_ptr);
#endif // CONFIG_ESP_SYSTEM_MEMPROT_FEATURE
}