From: Arnd Bergmann arnd@arndb.de
[ Upstream commit 55d5b7dd6451b58489ce384282ca5a4a289eb8d5 ]
There is only one function in init/initramfs.c that is in the .text section, and it is marked __weak. When building with clang-12 and the integrated assembler, this leads to a bug with recordmcount:
./scripts/recordmcount "init/initramfs.o" Cannot find symbol for section 2: .text. init/initramfs.o: failed
I'm not quite sure what exactly goes wrong, but I notice that this function is only ever called from an __init function, and normally inlined. Marking it __init as well is clearly correct and it leads to recordmcount no longer complaining.
Link: https://lkml.kernel.org/r/20201204165742.3815221-1-arnd@kernel.org Signed-off-by: Arnd Bergmann arnd@arndb.de Cc: Nathan Chancellor natechancellor@gmail.com Cc: Nick Desaulniers ndesaulniers@google.com Cc: Barret Rhoden brho@google.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- init/initramfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/init/initramfs.c b/init/initramfs.c index 5feee4f616d55..00a32799a38b0 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -527,7 +527,7 @@ extern unsigned long __initramfs_size; #include <linux/initrd.h> #include <linux/kexec.h>
-void __weak free_initrd_mem(unsigned long start, unsigned long end) +void __weak __init free_initrd_mem(unsigned long start, unsigned long end) { free_reserved_area((void *)start, (void *)end, POISON_FREE_INITMEM, "initrd");