Commit Graph

2 Commits

Author SHA1 Message Date
Laukik Hase
6e0e7e34ea
test_app: Extend panic app to include memprot-related tests
- Add support for esp32s2, esp32c3 and esp32c2 for the `memprot`-related tests
- Preliminary support for esp32s3 has also been added,
  the test app will be enabled for esp32s3 later when
  the memprot-related issues are fixed.
- Override panic handler to dump the violation intr status
  - Dump the `memprot` violation registers before calling the
    real panic handler
  - Handle `Illegal Instruction` exception in case of memprot permission violation
    * In esp32c3 with `memprot` enabled, if we try to execute arbitrary code
      from RTC_FAST_MEM we get an `Illegal Instruction` exception from the panic
      handler rather than a `Memory Protection Fault`.
    * This is because the Illegal Instruction interrupt occurs earlier than the
      memory protection interrupt due to a higher interrupt latency.
2023-02-16 17:13:56 +05:30
Laukik Hase
fa27795048
test_app: Split panic test app into separate source files
- Added minor improvements to  `panic` test app
  * Replaced existing API to disable flash cache which did not disabled cache always
    (`esp_flash_default_chip->os_func->start(esp_flash_default_chip->os_func_data)`)
    with `spi_flash_enable_interrupts_caches_and_other_cpu`
  * Included some required headers explicitly (`esp_memory_utils.h` and `esp_heap_caps.h`)
2023-02-16 15:26:47 +05:30