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tools/nolibc/string: export strlen()

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As with commit 8d304a3740, "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>
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
This commit is contained in:
Rodrigo Campos 2024-02-18 16:51:03 -03:00 committed by Thomas Weißschuh
parent 791f464114
commit 689230b674
1 changed files with 1 additions and 1 deletions
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tools/include/nolibc/string.h
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@ -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;