| From: |
| Will Deacon <will.deacon@arm.com> |
| To: |
| linux-arm-kernel@lists.infradead.org |
| Subject: |
| [PATCH 0/4] ARM: add support for hw-breakpoints [v6] |
| Date: |
| Mon, 23 Aug 2010 16:54:53 +0100 |
| Message-ID: |
| <1282578897-23247-1-git-send-email-will.deacon@arm.com> |
| Cc: |
| Russell King - ARM Linux <linux@arm.linux.org.uk>,
"S. Karthikeyan" <informkarthik@gmail.com>,
Will Deacon <will.deacon@arm.com>, Frederic Weisbecker <fweisbec@gmail.com> |
| Archive‑link: | |
Article |
This is version 6 of the patches originally posted at:
v1.) http://lists.infradead.org/pipermail/linux-arm-kernel/201...
v2.) http://lists.infradead.org/pipermail/linux-arm-kernel/201...
v3.) http://lists.infradead.org/pipermail/linux-arm-kernel/201...
v4.) http://lists.infradead.org/pipermail/linux-arm-kernel/201...
v5.) http://lists.infradead.org/pipermail/linux-arm-kernel/201...
Changes from v5 include:
- Based on v2.6.36-rc2
- ptrace breakpoints are now flushed before the thread state is zeroed
- ptrace breakpoint pointers are zeroed in copy_thread
- Debug registers are now zeroed on all cores during boot
- Userspace breakpoint and watchpoint single-stepping is supported on
v7 processors. This means the perf tool can be used to monitor
function calls and variable accesses.
As with v5, these patches have been shown to work with GDB using the patches
posted here:
http://sourceware.org/ml/gdb-patches/2010-07/msg00110.html
Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: S. Karthikeyan <informkarthik@gmail.com>
Will Deacon (4):
ARM: hw-breakpoint: add mechanism for hooking into prefetch aborts
ARM: hw-breakpoint: add ARM backend for the hw-breakpoint framework
ARM: hw-breakpoint: add new ptrace requests for hw-breakpoint
interaction
ARM: hw-breakpoint: add HAVE_HW_BREAKPOINT to Kconfig
arch/arm/Kconfig | 1 +
arch/arm/include/asm/hw_breakpoint.h | 132 ++++++
arch/arm/include/asm/processor.h | 4 +
arch/arm/include/asm/ptrace.h | 2 +
arch/arm/include/asm/system.h | 4 +
arch/arm/kernel/Makefile | 1 +
arch/arm/kernel/hw_breakpoint.c | 849 ++++++++++++++++++++++++++++++++++
arch/arm/kernel/process.c | 5 +
arch/arm/kernel/ptrace.c | 239 ++++++++++
arch/arm/mm/fault.c | 13 +
10 files changed, 1250 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/include/asm/hw_breakpoint.h
create mode 100644 arch/arm/kernel/hw_breakpoint.c
