lkml.org 
[lkml]   [2016]   [Jun]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v2 0/2] arm64 live patching
Date
So here is a slightly updated FTRACE_WITH_REGS plus live patching.
Reminder: make sure you have a prolog-pad gcc, and this in your
top level Makefile:

ifdef CONFIG_LIVEPATCH
KBUILD_CFLAGS += $(call cc-option,-fno-ipa-ra)
endif

Tested with v4.7-rc3 + gcc-6.1

Changes since v1:
* instead of a comment "should be CC_USING_PROLOG_PAD":
do it. CC_FLAGS_FTRACE holds it now, and the IPA
disabler has become a separate issue (see above).

Torsten Duwe (2):
arm64: implement FTRACE_WITH_REGS
arm64: implement live patching

arch/arm64/Kconfig | 4 ++
arch/arm64/Makefile | 4 ++
arch/arm64/include/asm/ftrace.h | 8 +++
arch/arm64/include/asm/livepatch.h | 37 ++++++++++++++
arch/arm64/kernel/Makefile | 6 +--
arch/arm64/kernel/entry-ftrace.S | 102 +++++++++++++++++++++++++++++++++++++
arch/arm64/kernel/ftrace.c | 43 ++++++++++++++--
include/asm-generic/vmlinux.lds.h | 2 +-
include/linux/compiler.h | 4 ++
9 files changed, 203 insertions(+), 7 deletions(-)
create mode 100644 arch/arm64/include/asm/livepatch.h

--
2.6.6

\
 
 \ /
  Last update: 2016-06-27 18:01    [W:0.097 / U:0.840 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site