Allow passing partition table to forward to parttool (IDFGH-12300)

[torkleyy]

Right now the tool crashes when the partition table isn't in the default location in flash:

thomas@thomas-mbp ~/W/myproject (main) [SIGINT]> python ~/.espressif/esp-idf/v5.1.3/components/espcoredump/espcoredump.py -p /dev/cu.usbserial-114201 info_corefile firmware/target/xtensa-esp32-espidf/release/esp-firmware
WARNING: /Users/thomas/Workspace/myproject/firmware/target/xtensa-esp32-espidf/release/project_description.json does not exist. Please build the app with "idf.py build"
INFO: Invoke parttool to read image.
Failed to load core dump: parttool script execution failed with error 1, failed command was: '/Users/thomas/.espressif/python_env/idf5.1_py3.11_env/bin/python /Users/thomas/.espressif/esp-idf/v5.1.3/components/partition_table/parttool.py --port /dev/cu.usbserial-114201 --baud 115200 read_partition --partition-type data --partition-subtype coredump --output /var/folders/tn/8gmb5b0d3n939xr1fwtj8s2m0000gn/T/tmp2u3apg6e'

┌────── Additional information about the error:
│
│   esptool.py v4.7.0
│   Serial port /dev/cu.usbserial-114201
│   Connecting.....
│   Detecting chip type... Unsupported detection protocol, switching and trying again...
│   Connecting....
│   Detecting chip type... ESP32
│   Chip is ESP32-D0WD-V3 (revision v3.1)
│   Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
│   Crystal is 40MHz
│   MAC: fc:b4:67:ce:55:cc
│   Uploading stub...
│   Running stub...
│   Stub running...
│   3072 (100 %)
│   3072 (100 %)
│   Read 3072 bytes at 0x00008000 in 0.3 seconds (76.8 kbit/s)...
│   Hard resetting via RTS pin...
│   Running /Users/thomas/.espressif/python_env/idf5.1_py3.11_env/bin/python /Users/thomas/.espressif/esp-idf/v5.1.3/components/esptool_py/esptool/esptool.py --port /dev/cu.usbserial-114201 --baud 115200 read_flash 32768 3072 /var/folders/tn/8gmb5b0d3n939xr1fwtj8s2m0000gn/T/tmpchjndu0k...
│   Traceback (most recent call last):
│     File "/Users/thomas/.espressif/esp-idf/v5.1.3/components/partition_table/parttool.py", line 358, in <module>
│       main()
│     File "/Users/thomas/.espressif/esp-idf/v5.1.3/components/partition_table/parttool.py", line 327, in main
│       target = ParttoolTarget(**target_args)
│                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
│     File "/Users/thomas/.espressif/esp-idf/v5.1.3/components/partition_table/parttool.py", line 105, in __init__
│       partition_table = gen.PartitionTable.from_binary(f.read())
│                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
│     File "/Users/thomas/.espressif/esp-idf/v5.1.3/components/partition_table/gen_esp32part.py", line 318, in from_binary
│       result.append(PartitionDefinition.from_binary(data))
│                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
│     File "/Users/thomas/.espressif/esp-idf/v5.1.3/components/partition_table/gen_esp32part.py", line 467, in from_binary
│       res.name = res.name.decode()
│                  ^^^^^^^^^^^^^^^^^
│   UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte

│
└────── end of additional information about the error.

This is my partition table:

# name,   type, subtype,  offset,   size,   flags
ota_0,    app,  ota_0,    0x10000,  4M,
ota_1,    app,  ota_1,    0x410000, 4M,
coredump, data, coredump, 0x810000, 64k,
otadata,  data, ota,      0x820000, 0x2000,
phy_init, data, phy,      0x822000, 0x1000,
nvs_key,  data, nvs_keys, 0x823000, 0x1000, encrypted
efuse_em, data, efuse,    0x824000, 0x2000,
nvs,      data, nvs,      0x900000, 6M,     encrypted

Note: I'm not using idf.py directly because I'm using the ESP IDF with Rust.

[peterdragun]

Hi @torkleyy, I am sorry for the inconvenience. The partition table offset is currently only supported in ESP-IDF, I will add the option to use it even when using the coredump as a separate tool.
In the meantime, you can set the offset of the coredump partition by adding --off argument. The option requires an integer, so in your case, the command should look something like this (0x810000 -> 8454144):
python ~/.espressif/esp-idf/v5.1.3/components/espcoredump/espcoredump.py -p /dev/cu.usbserial-114201 info_corefile firmware/target/xtensa-esp32-espidf/release/esp-firmware --off 8454144
or if you have esp-coredump installed from this repo:
esp-coredump -p /dev/cu.usbserial-114201 info_corefile firmware/target/xtensa-esp32-espidf/release/esp-firmware --off 8454144