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
..
boot	x86_64: kasan: add interceptors for memset/memmove/memcpy functions	2015-02-13 21:21:41 -08:00
configs	x86/kconfig/defconfig: Enable CONFIG_FHANDLE=y	2014-12-08 12:04:17 +01:00
crypto	crypto: add missing crypto module aliases	2015-01-13 22:29:11 +11:00
ia32	all arches, signal: move restart_block to struct task_struct	2015-02-12 18:54:12 -08:00
include	x86_64: kasan: add interceptors for memset/memmove/memcpy functions	2015-02-13 21:21:41 -08:00
kernel	x86_64: kasan: add interceptors for memset/memmove/memcpy functions	2015-02-13 21:21:41 -08:00
kvm	Fairly small update, but there are some interesting new features.	2015-02-13 09:55:09 -08:00
lguest	x86: Avoid building unused IRQ entry stubs	2014-12-16 14:08:14 +01:00
lib	x86_64: kasan: add interceptors for memset/memmove/memcpy functions	2015-02-13 21:21:41 -08:00
math-emu
mm	x86_64: add KASan support	2015-02-13 21:21:41 -08:00
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-12-10 15:48:20 -05:00
oprofile	percpu: Resolve ambiguities in __get_cpu_var/cpumask_var_t	2014-08-28 08:58:57 -04:00
pci	ACPI and power management updates for v3.20-rc1	2015-02-10 15:09:41 -08:00
platform	x86: use %*pb[l] to print bitmaps including cpumasks and nodemasks	2015-02-13 21:21:37 -08:00
power	nosave: consolidate __nosave_{begin,end} in <asm/sections.h>	2014-10-09 22:26:04 -04:00
purgatory	Merge branches 'x86-build-for-linus', 'x86-cleanups-for-linus' and 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-12-10 12:35:46 -08:00
realmode	x86_64: add KASan support	2015-02-13 21:21:41 -08:00
syscalls	x86: hook up execveat system call	2014-12-13 12:42:51 -08:00
tools	x86, build: replace Perl script with Shell script	2015-01-26 13:37:18 -08:00
um	all arches, signal: move restart_block to struct task_struct	2015-02-12 18:54:12 -08:00
vdso	x86_64: add KASan support	2015-02-13 21:21:41 -08:00
video
xen	xen: mark grant mapped pages as foreign	2015-01-28 14:03:12 +00:00
.gitignore	x86/build: Add arch/x86/purgatory/ make generated files to gitignore	2014-10-09 09:29:46 +02:00
Kbuild	kexec: create a new config option CONFIG_KEXEC_FILE for new syscall	2014-08-29 16:28:16 -07:00
Kconfig	x86_64: add KASan support	2015-02-13 21:21:41 -08:00
Kconfig.cpu
Kconfig.debug
Makefile	x86/raid6: correctly check for assembler capabilities	2015-02-04 08:35:51 +11:00
Makefile_32.cpu
Makefile.um