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feat(libc): pass __PICOLIBC_ERRNO_FUNCTION to picolibc builds

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This commit is contained in:
Alexey Lapshin
2026-08-05 16:45:09 +07:00
parent 0c1e6bd965
commit 0c28bbe3f8
4 changed files with 13 additions and 5 deletions
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components/esp_libc/project_include.cmake
+6 -2
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@@ -58,6 +58,10 @@ if(CONFIG_IDF_TOOLCHAIN_GCC)
idf_toolchain_remove_flags(COMPILE_OPTIONS "-mdisable-hardware-atomics")
endif()
idf_toolchain_remove_flags(COMPILE_OPTIONS "-specs=.*picolibc.*")
idf_toolchain_remove_flags(COMPILE_OPTIONS "-D__STDC_WANT_LIB_EXT1__=0")
# TODO GCC-495:remove
idf_toolchain_remove_flags(COMPILE_OPTIONS "-D__PICOLIBC_ERRNO_FUNCTION=__errno")
if(CONFIG_LIBC_PICOLIBC)
# TODO GCC-464:
# The original picolibc.specs file cannot be used directly in the build
@@ -69,11 +73,11 @@ if(CONFIG_IDF_TOOLCHAIN_GCC)
# --gc-sections option.
get_picolibc_specs_path(picolibc_specs_path)
idf_toolchain_add_flags(COMPILE_OPTIONS "\"-specs=${picolibc_specs_path}\"")
# TODO GCC-495:remove
idf_toolchain_add_flags(COMPILE_OPTIONS "-D__PICOLIBC_ERRNO_FUNCTION=__errno")
if(LIBC_PICOLIBC_NEWLIB_COMPATIBILITY)
idf_toolchain_add_flags(COMPILE_OPTIONS "-D__STDC_WANT_LIB_EXT1__=0")
endif()
else()
idf_toolchain_remove_flags(COMPILE_OPTIONS "-specs=.*picolibc.*")
endif()
if(CONFIG_LIBC_NEWLIB_NANO_FORMAT)