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Merge pull request #18893 from maribu/makefiles/libc/picolibc.mk

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makefiles/libc/picolibc.mk: fix compilation with modern binutils
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Marian Buschsieweke 2022-11-15 08:52:45 +01:00 committed by GitHub
commit 643aeda471
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1 changed files with 8 additions and 0 deletions
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makefiles/libc/picolibc.mk
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@ -27,6 +27,14 @@ ifeq (1,$(USE_PICOLIBC))
CFLAGS += -DPICOLIBC_INTEGER_PRINTF_SCANF
LINKFLAGS += -DPICOLIBC_INTEGER_PRINTF_SCANF
endif
# For some reason segments with RWX permissions will be created with
# picolibc. But since (as of now) RIOT only supports disabling the execute of
# all RAM via the `mpu_noexec_ram` module, permissions of the segments are
# ignored anyway. So for now, we just simply disable the warning.
LINKER_SUPPORTS_NOWARNRWX ?= $(shell echo "int main(){} void _exit(int n) {(void)n;while(1);}" | LC_ALL=C $(LINK) -xc - -o /dev/null -lc -Wall -Wextra -pedantic -Wl,--no-warn-rwx-segments 2> /dev/null && echo 1 || echo 0)
ifeq (1,$(LINKER_SUPPORTS_NOWARNRWX))
LINKFLAGS += -Wl,--no-warn-rwx-segments
endif
endif
LINKFLAGS += -lc