Messages in this thread | | | From | Li Huafei <> | Subject | [PATCH RESEND v3 0/4] ARM: Convert to ARCH_STACKWALK | Date | Fri, 26 Aug 2022 15:40:43 +0800 |
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This series mainly updates the ARM stack trace code to use the newer and simpler arch_stack_walk() interface (see patches 3 and 4). Two issues were fixed before that (see patches 1 and 2).
v3 RESEND notes:
Rebase to v6.0-rc1.
It's been a month since I sent the v3. Linus told me I needed to add the patch to Russell's patch tracker myself, rebase to v6.0-rc1 before that. Thanks Linus for the tip!
Since commit af6f23b88e95 ("ARM/dma-mapping: use the generic versions of dma_to_phys/phys_to_dma by default") and commit ae626eb97376 ("ARM/dma-mapping: use dma-direct unconditionally") modified arch/arm/Kconfig, there is a minor conflict with patch 4 when rebase.
v3: https://lore.kernel.org/lkml/20220727040022.139387-1-lihuafei1@huawei.com/ - According to the discussion with Linus and Russell in v1: - Add a comment about "regs[1]" in patch 2, and remove the unnecessary ternary operator in the initialization of "frame->ex_frame". - Remove the patch "ARM: stacktrace: Allow stack trace saving for non-current tasks", and keep the check for not being able to unwind non-current tasks (including tasks running on other CPUs) when CONFIG_SMP=y in patch 4. - Rebase to linux-5.19-rc8.
v2: https://lore.kernel.org/lkml/20220713110020.85511-1-lihuafei1@huawei.com/ - As suggested by Mark, the commit logs for patch 4 and 5 were refined for easy review.
v1: https://lore.kernel.org/lkml/20220712021527.109921-1-lihuafei1@huawei.com/
Li Huafei (4): ARM: stacktrace: Skip frame pointer boundary check for call_with_stack() ARM: stacktrace: Avoid duplicate saving of exception PC value ARM: stacktrace: Make stack walk callback consistent with generic code ARM: stacktrace: Convert stacktrace to generic ARCH_STACKWALK
arch/arm/Kconfig | 1 + arch/arm/include/asm/stacktrace.h | 8 +- arch/arm/kernel/perf_callchain.c | 9 +- arch/arm/kernel/return_address.c | 9 +- arch/arm/kernel/stacktrace.c | 191 ++++++++++++++---------------- arch/arm/lib/call_with_stack.S | 2 + 6 files changed, 110 insertions(+), 110 deletions(-)
-- 2.17.1
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