Andrey Ryabinin 393f203f5f x86_64: kasan: add interceptors for memset/memmove/memcpy functions ... Recently instrumentation of builtin functions calls was removed from GCC 5.0. To check the memory accessed by such functions, userspace asan always uses interceptors for them. So now we should do this as well. This patch declares memset/memmove/memcpy as weak symbols. In mm/kasan/kasan.c we have our own implementation of those functions which checks memory before accessing it. Default memset/memmove/memcpy now now always have aliases with '__' prefix. For files that built without kasan instrumentation (e.g. mm/slub.c) original mem* replaced (via #define) with prefixed variants, cause we don't want to check memory accesses there. Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Konstantin Serebryany <kcc@google.com> Cc: Dmitry Chernenkov <dmitryc@google.com> Signed-off-by: Andrey Konovalov <adech.fo@gmail.com> Cc: Yuri Gribov <tetra2005@gmail.com> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: Christoph Lameter <cl@linux.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2015-02-13 21:21:41 -08:00
..
compressed	x86_64: kasan: add interceptors for memset/memmove/memcpy functions	2015-02-13 21:21:41 -08:00
tools	x86/efi: Include a .bss section within the PE/COFF headers	2014-07-10 14:21:39 +01:00
.gitignore
a20.c
apm.c
bioscall.S
bitops.h
boot.h
cmdline.c
code16gcc.h
copy.S
cpu.c	x86: Support compiling out human-friendly processor feature names	2014-08-17 15:54:00 -07:00
cpucheck.c
cpuflags.c
cpuflags.h
ctype.h	x86, setup: Rename BOOT_ISDIGIT_H to BOOT_CTYPE_H	2015-01-13 11:59:04 +01:00
early_serial_console.c	x86, early_serial_console: Remove unnecessary check	2015-01-13 12:14:44 +01:00
edd.c
header.S	Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-08-04 17:13:50 -07:00
install.sh
main.c
Makefile	x86_64: add KASan support	2015-02-13 21:21:41 -08:00
mca.c
memory.c
mkcpustr.c	x86: Introduce disabled-features	2014-09-11 14:30:02 -07:00
mtools.conf.in
pm.c
pmjump.S
printf.c
regs.c
setup.ld
string.c
string.h
tty.c
version.c
vesa.h
video-bios.c
video-mode.c
video-vesa.c
video-vga.c
video.c
video.h