[PATCH 0/4] ARM64: More flexible HW watchpoint

From: Pratyush Anand
Date: Wed Oct 12 2016 - 02:05:20 EST


Currently, we do not support all the byte select option provided by ARM64
specs for a HW watchpoint.

This patch set will help user to instrument a watchpoint with all possible
byte select options.

Pratyush Anand (4):
hw_breakpoint: Allow watchpoint of length 3,5,6 and 7
arm64: Allow hw watchpoint at varied offset from base address
arm64: Allow hw watchpoint of length 3,5,6 and 7
selftests: arm64: add test for unaligned watchpoint address handling

arch/arm64/include/asm/hw_breakpoint.h | 6 +-
arch/arm64/kernel/hw_breakpoint.c | 79 ++++++--
arch/arm64/kernel/ptrace.c | 5 +-
include/uapi/linux/hw_breakpoint.h | 4 +
tools/include/uapi/linux/hw_breakpoint.h | 4 +
tools/testing/selftests/breakpoints/Makefile | 5 +-
.../selftests/breakpoints/breakpoint_test_arm64.c | 223 +++++++++++++++++++++
7 files changed, 300 insertions(+), 26 deletions(-)
create mode 100644 tools/testing/selftests/breakpoints/breakpoint_test_arm64.c

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2.7.4