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9a93848fe7
By using "UD0" for WARN()s we remove the function call and its possible
__FILE__ and __LINE__ immediate arguments from the instruction stream.
Total image size will not change much, what we win in the instruction
stream we'll lose because of the __bug_table entries. Still, saves on
I$ footprint and the total image size does go down a bit.
text data filename
10702123 4530992 defconfig-build/vmlinux.orig
10682460 4530992 defconfig-build/vmlinux.patched
(UML didn't seem to use GENERIC_BUG at all, so remove it)
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Richard Weinberger <richard.weinberger@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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|---|---|---|
| .. | ||
| asm | ||
| os-Linux | ||
| shared/sysdep | ||
| vdso | ||
| bugs_32.c | ||
| bugs_64.c | ||
| checksum_32.S | ||
| delay.c | ||
| elfcore.c | ||
| fault.c | ||
| Kconfig | ||
| ldt.c | ||
| Makefile | ||
| mem_32.c | ||
| mem_64.c | ||
| ptrace_32.c | ||
| ptrace_64.c | ||
| ptrace_user.c | ||
| setjmp_32.S | ||
| setjmp_64.S | ||
| signal.c | ||
| stub_32.S | ||
| stub_64.S | ||
| stub_segv.c | ||
| sys_call_table_32.c | ||
| sys_call_table_64.c | ||
| syscalls_64.c | ||
| sysrq_32.c | ||
| sysrq_64.c | ||
| tls_32.c | ||
| tls_64.c | ||
| user-offsets.c | ||