ESP32-C6 linking failed

[Graveflo]

I'm trying to compile simple test code that I have working on ESP32 and ESP32-S3, but when I try to compile it for ESP32-C6 I get a linking error that I do not fully understand. I am able to compile the "blink" example just fine for the C6, so this is not a consistent issue with the build system.

The error looks like this (I added a couple line breaks):

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/home/ryan/.espressif/tools/riscv32-esp-elf/esp-13.2.0_20230928/riscv32-esp-elf/bin/../lib/gcc/riscv32-esp-elf/13.2.0/../../../../riscv32-esp-elf/bin/ld:
The gap between .flash.rodata and .flash.tls must not exist to produce the final bin image.
/home/ryan/.espressif/tools/riscv32-esp-elf/esp-13.2.0_20230928/riscv32-esp-elf/bin/../lib/gcc/riscv32-esp-elf/13.2.0/../../../../riscv32-esp-elf/bin/ld:
The gap between .flash.tls and .eh_frame must not exist to produce the final bin image.

I tried looking for a good explanation of "The gap between X and Y must not exist to produce the final bin image" but I could not find anything useful. Does anyone know what could be causing this error?

The CMake files are the same for the working blink example and the failing project.

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1. cmake_minimum_required(VERSION 3.16)
2.  
3. include($ENV{IDF_PATH}/tools/cmake/project.cmake)
4. project(blink)

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The blink example uses `SRCS "blink_example_main.c"` instead

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1. idf_component_register(SRC_DIRS "nimcache"
2.                        INCLUDE_DIRS ".")
3. idf_build_set_property(C_COMPILE_OPTIONS -Wno-unused-label APPEND)
4. idf_build_set_property(C_COMPILE_OPTIONS -Wno-discarded-qualifiers APPEND)
5. idf_build_set_property(C_COMPILE_OPTIONS -Wno-ignored-qualifiers APPEND)
6. idf_build_set_property(C_COMPILE_OPTIONS -Wno-error=unused-label APPEND)
7. idf_build_set_property(C_COMPILE_OPTIONS -Wno-error=parentheses APPEND)
8. idf_build_set_property(C_COMPILE_OPTIONS -Wno-error=implicit-function-declaration APPEND)
9. idf_build_set_property(C_COMPILE_OPTIONS -Wno-error=maybe-uninitialized APPEND)
10. idf_build_set_property(C_COMPILE_OPTIONS -Wno-error=nonnull APPEND)
11. idf_build_set_property(C_COMPILE_OPTIONS -Wno-error=address APPEND)
12. idf_build_set_property(C_COMPILE_OPTIONS -Wno-unused-but-set-variable APPEND)

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[ESP_jakob]

Hi!

To debug these type of linker issues, it would be easiest for us if you can provide a minimal reproducing example. Would that be possible?

[ESP_jakob]

One more question: which IDF version - specifically, which commit - are you using?