[PATCH v4 0/3] usercopy: reimplement arch_within_stack_frames

From: kpark3469
Date: Tue Apr 10 2018 - 03:31:14 EST


From: Sahara <keun-o.park@xxxxxxxxxxxxx>

This series of patches introduce the arm64 arch_within_stack_frames
implementation using stacktrace functions. Also the base code is
moved from thread_info.h to stacktrace.h. x86 code is reimplemented
to use frame pointer unwinder functions.

Note: The code is still missing in case of using x86 ORC unwinder and
guess unwinder.

v2 changes:
- Remove 'arm64: usercopy: consider dynamic array stack variable'
- minor fix in x86 arch_within_stack_frames code.
v3 changes:
- Fix build problem caused by circular inclusion of header in x86 UP config
v4 changes:
- Fix build problem caused by page_ext.h change

James Morse (1):
arm64: usercopy: implement arch_within_stack_frames

Sahara (2):
stacktrace: move arch_within_stack_frames from thread_info.h
x86: usercopy: reimplement arch_within_stack_frames with unwinder

arch/arm64/Kconfig | 1 +
arch/arm64/kernel/stacktrace.c | 76 +++++++++++++++++++++++++++++++++
arch/x86/include/asm/thread_info.h | 51 +---------------------
arch/x86/include/asm/unwind.h | 5 +++
arch/x86/kernel/Makefile | 2 +-
arch/x86/kernel/stacktrace.c | 87 ++++++++++++++++++++++++++++++++++++++
arch/x86/kernel/unwind_frame.c | 4 +-
include/linux/stacktrace.h | 24 +++++++++++
include/linux/thread_info.h | 21 ---------
mm/usercopy.c | 2 +-
10 files changed, 197 insertions(+), 76 deletions(-)

--
2.7.4