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fix(cmakev2): wrap library archives with --start-group/--end-group

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Attach the flags as the first and last entries of the library's
INTERFACE_LINK_LIBRARIES so the linker re-scans archives until all
symbols resolve.
This commit is contained in:
Sudeep Mohanty
2026-06-02 10:13:30 +02:00
committed by BOT
parent f55b23fd98
commit 19d69b61eb
1 changed files with 14 additions and 0 deletions
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14
tools/cmakev2/build.cmake
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@@ -361,11 +361,25 @@ function(idf_build_library library)
# Include the requested components and link their interface targets to the
# library.
#
# On the GNU linker, bracket the component interface list with
# --start-group/--end-group so the linker re-scans archives until all
# symbols resolve. Required when the archive defining a __wrap_*
# implementation is encountered after the archive consuming the wrapped
# symbol on the link line; without group iteration the wrap symbol is
# unresolved.
idf_build_get_property(linker_type LINKER_TYPE)
if("${linker_type}" STREQUAL "GNU")
target_link_libraries("${library}" INTERFACE "-Wl,--start-group")
endif()
foreach(component_name IN LISTS ARG_COMPONENTS)
idf_component_include("${component_name}")
idf_component_get_property(component_interface "${component_name}" COMPONENT_INTERFACE)
target_link_libraries("${library}" INTERFACE "${component_interface}")
endforeach()
if("${linker_type}" STREQUAL "GNU")
target_link_libraries("${library}" INTERFACE "-Wl,--end-group")
endif()
# Process optional requirements in DEFERRED mode only (no-op in IMMEDIATE or when unset).
idf_build_get_property(opt_req_mode IDF_COMPONENT_OPTIONAL_REQUIRES_MODE)