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Description
I'm using a esp32c6 here with 8MB of flash and I have a rust program that is around 2 Mb, based on the esp-idf-* crates.
My partition table:
# ESP-IDF Partition Table
# Name, Type, SubType, Offset, Size, Flags
nvs, data, nvs, 0x9000, 0x6000,
phy_init, data, phy, 0xf000, 0x1000,
factory, app, factory, 0x10000, 4M,
Output of riscv32-esp-elf-objdump -h
target/riscv32imac-esp-espidf/debug/esp32_devkit: file format elf32-littleriscv
Sections:
Idx Name Size VMA LMA File off Algn
0 .rtc.text 00000000 50000000 50000000 0020a560 2**0
CONTENTS
1 .rtc.force_fast 00000000 50000000 50000000 0020a560 2**0
CONTENTS
2 .rtc_noinit 00000000 50000000 50000000 0020a560 2**0
CONTENTS
3 .rtc.force_slow 00000000 50000000 50000000 0020a560 2**0
CONTENTS
4 .rtc_reserved 00000018 50003fe8 50003fe8 0020afe8 2**3
ALLOC
5 .iram0.text 0000c84e 40800000 40800000 00001000 2**8
CONTENTS, ALLOC, LOAD, READONLY, CODE
6 .iram0.text_end 00000000 4080c84e 4080c84e 0020a560 2**0
CONTENTS
7 .iram0.data 00000002 4080c84e 4080c84e 0000d84e 2**0
ALLOC
8 .iram0.bss 00000000 4080c850 4080c850 0020a560 2**0
CONTENTS
9 .dram0.dummy 0000c850 40800000 40800000 0000e000 2**0
ALLOC
10 .dram0.data 00001f30 4080c850 4080c850 0000d850 2**3
CONTENTS, ALLOC, LOAD, DATA
11 .noinit 00000000 4080e780 4080e780 00000000 2**0
ALLOC
12 .dram0.bss 00001598 4080e780 4080e780 0000f780 2**4
ALLOC
13 .flash.text 0016f3b6 42000020 42000020 00010020 2**1
CONTENTS, ALLOC, LOAD, READONLY, CODE
14 iram1.queue_as_raw 00000016 4216f3d6 4216f3d6 0017f3d6 2**1
CONTENTS, ALLOC, LOAD, READONLY, CODE
15 iram1.queue_recv_front 0000011a 4216f3ec 4216f3ec 0017f3ec 2**1
CONTENTS, ALLOC, LOAD, READONLY, CODE
16 .flash_rodata_dummy 00170000 42000020 42000020 00180020 2**0
ALLOC
17 .flash.appdesc 00000100 42170020 42170020 00180020 2**4
CONTENTS, ALLOC, LOAD, READONLY, DATA
18 .flash.rodata 000333d8 42170120 42170120 00180120 2**4
CONTENTS, ALLOC, LOAD, DATA
19 .eh_frame 00057068 421a34f8 421a34f8 001b34f8 2**3
CONTENTS, ALLOC, LOAD, READONLY, DATA
20 .flash.rodata_noload 00000000 421fa560 421fa560 0020a560 2**0
CONTENTS
21 .dram0.heap_start 00000008 4080fd18 4080fd18 0000f780 2**0
ALLOC
22 .debug_loc 0007f8f6 00000000 00000000 0020a560 2**0
CONTENTS, READONLY, DEBUGGING, OCTETS
23 .debug_abbrev 00037efb 00000000 00000000 00289e56 2**0
CONTENTS, READONLY, DEBUGGING, OCTETS
24 .debug_info 00588cb8 00000000 00000000 002c1d51 2**0
CONTENTS, READONLY, DEBUGGING, OCTETS
25 .debug_aranges 0003fee8 00000000 00000000 0084aa10 2**3
CONTENTS, READONLY, DEBUGGING, OCTETS
26 .debug_ranges 00077b30 00000000 00000000 0088a8f8 2**0
CONTENTS, READONLY, DEBUGGING, OCTETS
27 .debug_str 00694ced 00000000 00000000 00902428 2**0
CONTENTS, READONLY, DEBUGGING, OCTETS
28 .comment 00000094 00000000 00000000 00f97115 2**0
CONTENTS, READONLY
29 .riscv.attributes 0000004d 00000000 00000000 00f971a9 2**0
CONTENTS, READONLY
30 .debug_line 0034d211 00000000 00000000 00f971f6 2**0
CONTENTS, READONLY, DEBUGGING, OCTETS
31 .debug_frame 00012e40 00000000 00000000 012e4408 2**2
CONTENTS, READONLY, DEBUGGING, OCTETS
32 .debug_line_str 00002402 00000000 00000000 012f7248 2**0
CONTENTS, READONLY, DEBUGGING, OCTETS
33 .debug_loclists 0000f5c9 00000000 00000000 012f964a 2**0
CONTENTS, READONLY, DEBUGGING, OCTETS
34 .debug_rnglists 00001d7e 00000000 00000000 01308c13 2**0
CONTENTS, READONLY, DEBUGGING, OCTETS
When I run espflash flash --monitor --partition-table ./partitions.csv <elf>, I get the following output:
Chip type: esp32c6 (revision v0.0)
Crystal frequency: 40MHz
Flash size: 8MB
...
App/part. size: 2,205,072/4,194,304 bytes, 52.57%
...
I (41) boot: ESP-IDF v5.1-beta1-378-gea5e0ff298-dirt 2nd stage bootloader
I (42) boot: compile time Jun 7 2023 08:02:08
I (43) boot: chip revision: v0.0
I (46) boot.esp32c6: SPI Speed : 40MHz
I (51) boot.esp32c6: SPI Mode : DIO
I (56) boot.esp32c6: SPI Flash Size : 4MB
I (61) boot: Enabling RNG early entropy source...
E (66) flash_parts: partition 2 invalid - offset 0x10000 size 0x400000 exceeds flash chip size 0x400000
E (76) boot: Failed to verify partition table
E (81) boot: load partition table error!
Note how the bootloader does not detect the chip size correctly. This is probably a small bug in espflash somewhere.
If I now invoke espflash flash --monitor --partition-table ./partitions.csv --flash-size 8mb <elf> I get the following output:
...
Flash size: 8MB
...
I (41) boot: ESP-IDF v5.1-beta1-378-gea5e0ff298-dirt 2nd stage bootloader
I (42) boot: compile time Jun 7 2023 08:02:08
I (43) boot: chip revision: v0.0
I (46) boot.esp32c6: SPI Speed : 40MHz
I (51) boot.esp32c6: SPI Mode : DIO
I (56) boot.esp32c6: SPI Flash Size : 8MB
I (61) boot: Enabling RNG early entropy source...
I (66) boot: Partition Table:
I (70) boot: ## Label Usage Type ST Offset Length
I (77) boot: 0 nvs WiFi data 01 02 00009000 00006000
I (84) boot: 1 phy_init RF data 01 01 0000f000 00001000
I (92) boot: 2 factory factory app 00 00 00010000 00400000
I (99) boot: End of partition table
I (103) esp_image: segment 0: paddr=00010020 vaddr=42000020 size=16f3b8h (1504184) map
I (417) esp_image: segment 1: paddr=0017f3e0 vaddr=40800000 size=0e780h ( 59264) load
E (432) esp_image: invalid segment length 0x1866
E (432) boot: Factory app partition is not bootable
E (433) boot: No bootable app partitions in the partition table
Now the bootloader detects the flash size correctly, but cannot load the segments.
Without investigating in detail, to me it looks that we still have some problems with merging the segments.
I'm using espflash from todays master branch (074f8bc)
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