esp-backtrace - backtrace for ESP32 bare-metal
Supports the ESP32, ESP32-C2/C3/C6, ESP32-H2, ESP32-P4, and ESP32-S2/S3. Optional exception and panic handlers are included, both of which can be enabled via their respective features.
Please note that when targeting a RISC-V device, you need to force frame pointers (i.e. "-C", "force-frame-pointers", in your .cargo/config.toml); this is not required for Xtensa.
You can get an array of backtrace addresses (currently limited to 10) via arch::backtrace() if
you want to create a backtrace yourself (i.e. not using the panic or exception handler).
When using the panic and/or exception handler make sure to include use esp_backtrace as _;.
Features
| Feature | Description |
|---|---|
| esp32 | Target ESP32 |
| esp32c2 | Target ESP32-C2 |
| esp32c3 | Target ESP32-C3 |
| esp32c6 | Target ESP32-C6 |
| esp32h2 | Target ESP32-H2 |
| esp32p4 | Target ESP32-P4 |
| esp32s2 | Target ESP32-S2 |
| esp32s3 | Target ESP32-S3 |
| panic-handler | Include a panic handler, will add esp-println as a dependency |
| exception-handler | Include an exception handler, will add esp-println as a dependency |
| println | Use esp-println to print messages |
| defmt | Use defmt logging to print messages* (check example) |
| colors | Print messages in red* |
| halt-cores | Halt both CPUs on ESP32 / ESP32-S3 in case of a panic or exception |
* only used for panic and exception handlers
License
Licensed under either of:
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.