From bf9688e623262c5fa9f91e4de0e84db45025076f Mon Sep 17 00:00:00 2001 From: Siddhesh Poyarekar Date: Thu, 15 Feb 2024 07:40:56 -0500 Subject: cdefs: Drop access attribute for _FORTIFY_SOURCE=3 (BZ #31383) When passed a pointer to a zero-sized struct, the access attribute without the third argument misleads -Wstringop-overflow diagnostics to think that a function is writing 1 byte into the zero-sized structs. The attribute doesn't add that much value in this context, so drop it completely for _FORTIFY_SOURCE=3. Resolves: BZ #31383 Signed-off-by: Siddhesh Poyarekar Reviewed-by: Adhemerval Zanella --- io/Makefile | 2 ++ 1 file changed, 2 insertions(+) (limited to 'io/Makefile') diff --git a/io/Makefile b/io/Makefile index 54d950d51f..19932d50f7 100644 --- a/io/Makefile +++ b/io/Makefile @@ -215,6 +215,7 @@ tests := \ tst-openat \ tst-posix_fallocate \ tst-posix_fallocate64 \ + tst-read-zero \ tst-readlinkat \ tst-renameat \ tst-stat \ @@ -290,6 +291,7 @@ CFLAGS-read.c += -fexceptions -fasynchronous-unwind-tables $(config-cflags-wno-i CFLAGS-write.c += -fexceptions -fasynchronous-unwind-tables $(config-cflags-wno-ignored-attributes) CFLAGS-close.c += -fexceptions -fasynchronous-unwind-tables CFLAGS-lseek64.c += $(config-cflags-wno-ignored-attributes) +CFLAGS-tst-read-zero.c += $(no-fortify-source),-D_FORTIFY_SOURCE=$(supported-fortify) CFLAGS-test-stat.c += -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE CFLAGS-test-lfs.c += -D_LARGEFILE64_SOURCE -- cgit 1.4.1