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bug fix pic:elf do not generate unwind table #17536

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bug fix pic:elf do not generate unwind table #17536

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5 changes: 5 additions & 0 deletions arch/arm/src/common/Toolchain.defs
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Original file line number Diff line number Diff line change
Expand Up @@ -552,6 +552,11 @@ LDMODULEFLAGS = -r -T $(call CONVERT_PATH,$(TOPDIR)/libs/libc/elf/gnu-elf.ld)
CELFFLAGS = $(CFLAGS) -fvisibility=hidden -mlong-calls # --target1-abs
CXXELFFLAGS = $(CXXFLAGS)-fvisibility=hidden -mlong-calls

ifeq ($(CONFIG_UNWINDER_ARM),y)
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@anchao anchao Dec 21, 2025 •
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If unwind table support in ELF is not intended to be implemented, supplementary comments can be added. In addition, a statement indicating the lack of support should be included in the ELF chapter, preferably with details specified down to the ELF allocation type level.

CELFFLAGS += -fno-unwind-tables -fno-asynchronous-unwind-tables
CXXELFFLAGS += -fno-unwind-tables -fno-asynchronous-unwind-tables
endif

ifeq ($(CONFIG_PIC),y)
CFLAGS += --fixed-r10
CELFFLAGS += $(PICFLAGS) -mpic-register=r10
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