evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

FROMLIST: [PATCH v5 07/12] arm: vdso: disable profiling

Browse source 
(cherry pick from url https://patchwork.kernel.org/patch/10044491/)

Take an effort to recode the arm64 vdso code from assembler to C
previously submitted by Andrew Pinski <apinski@cavium.com>, rework
it for use in both arm and arm64, overlapping any optimizations
for each architecture. But instead of landing it in arm64, land the
result into lib/vdso and unify both implementations to simplify
future maintenance.

Make sure kasan and ubsan profiling, and kcov instrumentation,
is turned off for VDSO code.

Signed-off-by: Mark Salyzyn <salyzyn@android.com>
Cc: James Morse <james.morse@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dmitry Safonov <dsafonov@virtuozzo.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Andy Gross <andy.gross@linaro.org>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Andrew Pinski <apinski@cavium.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Bug: 63737556
Bug: 20045882
Change-Id: I2b44c1edd81665b8bb235a65ba642767c35f1e61
This commit is contained in:
Mark Salyzyn 2017-10-12 15:13:07 -07:00 • committed by Timi
parent eb1f240a10
commit c790ebbe60
1 changed files with 4 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
arch/arm/vdso/Makefile
View file

@ -26,8 +26,11 @@ CFLAGS_REMOVE_vdso.o = -pg
CFLAGS_REMOVE_vgettimeofday.o = -pg -Os CFLAGS_REMOVE_vgettimeofday.o = -pg -Os
CFLAGS_vgettimeofday.o = -O2 CFLAGS_vgettimeofday.o = -O2
# Disable gcov profiling for VDSO code # Disable gcov, kasan, ubsan and kcov profiling for VDSO code
GCOV_PROFILE := n GCOV_PROFILE := n
KASAN_SANITIZE := n
UBSAN_SANITIZE := n
KCOV_INSTRUMENT := n
# Force dependency # Force dependency
$(obj)/vdso.o : $(obj)/vdso.so $(obj)/vdso.o : $(obj)/vdso.so