Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Rodrigo Campos <> | Subject | [PATCH v3 1/4] tools/nolibc/string: export strlen() | Date | Sun, 18 Feb 2024 16:51:03 -0300 |
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As with commit 8d304a374023, "tools/nolibc/string: export memset() and memmove()", gcc -Os without -ffreestanding may fail to compile with:
cc -fno-asynchronous-unwind-tables -fno-ident -s -Os -nostdlib -lgcc -static -o test test.c /usr/bin/ld: /tmp/cccIasKL.o: in function `main': test.c:(.text.startup+0x1e): undefined reference to `strlen' collect2: error: ld returned 1 exit status
As on the aforementioned commit, this patch adds a section to export this function so compilation works on those cases too.
Signed-off-by: Rodrigo Campos <rodrigo@sdfg.com.ar> --- tools/include/nolibc/string.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/include/nolibc/string.h b/tools/include/nolibc/string.h index a01c69dd495f..ed15c22b1b2a 100644 --- a/tools/include/nolibc/string.h +++ b/tools/include/nolibc/string.h @@ -123,7 +123,7 @@ char *strcpy(char *dst, const char *src) * thus itself, hence the asm() statement below that's meant to disable this * confusing practice. */ -static __attribute__((unused)) +__attribute__((weak,unused,section(".text.nolibc_strlen"))) size_t strlen(const char *str) { size_t len; -- 2.43.0
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