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* [PATCH v3 0/7] arm64: Fix single-step handling and syscall tracing
@ 2020-07-10 13:06 Will Deacon
  2020-07-10 13:06 ` [PATCH v3 1/7] arm64: ptrace: Consistently use pseudo-singlestep exceptions Will Deacon
                   ` (8 more replies)
  0 siblings, 9 replies; 16+ messages in thread
From: Will Deacon @ 2020-07-10 13:06 UTC (permalink / raw)
  To: linux-arm-kernel
  Cc: Mark Rutland, Luis Machado, Kees Cook, Will Deacon,
	catalin.marinas, Keno Fischer, kernel-team

Hi folks,

This is version three of the patches I previous posted here:

  v1: https://lore.kernel.org/r/20200603151033.11512-1-will@kernel.org
  v2: https://lore.kernel.org/r/20200702212618.17800-1-will@kernel.org

This version includes some changes I've been hacking on in relation to
syscall entry/exit, as it seemed worth lumping all this together. I've
also reordered the series to put the fixes at the start.

Luis -- did you manage to test v2? I'd quite like to queue some of this
soon. If you don't have time, how can I run the GDB testsuite myself? I
tried doing it a _long_ time ago but I remember there being a lot of
failures and flakey tests, so it wasn't very helpful. I have arm64
hardware running Debian so it's just a question of which buttons to
press :)

Cheers,

Will

Cc: <kernel-team@android.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Luis Machado <luis.machado@linaro.org>
Cc: Keno Fischer <keno@juliacomputing.com>
Cc: Kees Cook <keescook@chromium.org>

--->8

Will Deacon (7):
  arm64: ptrace: Consistently use pseudo-singlestep exceptions
  arm64: ptrace: Override SPSR.SS when single-stepping is enabled
  arm64: compat: Ensure upper 32 bits of x0 are zero on syscall return
  arm64: ptrace: Add a comment describing our syscall entry/exit trap
    ABI
  arm64: syscall: Expand the comment about ptrace and syscall(-1)
  arm64: ptrace: Use NO_SYSCALL instead of -1 in syscall_trace_enter()
  arm64: Use test_tsk_thread_flag() for checking TIF_SINGLESTEP

 arch/arm64/include/asm/debug-monitors.h |  2 +
 arch/arm64/include/asm/syscall.h        | 12 +++++-
 arch/arm64/include/asm/thread_info.h    |  1 +
 arch/arm64/kernel/debug-monitors.c      | 24 +++++++++---
 arch/arm64/kernel/ptrace.c              | 49 +++++++++++++++++++------
 arch/arm64/kernel/signal.c              | 11 +-----
 arch/arm64/kernel/syscall.c             | 21 ++++++++++-
 7 files changed, 90 insertions(+), 30 deletions(-)

-- 
2.27.0.383.g050319c2ae-goog


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^ permalink raw reply	[flat|nested] 16+ messages in thread
end of thread, other threads:[~2020-07-16  0:29 UTC | newest]

Thread overview: 16+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-07-10 13:06 [PATCH v3 0/7] arm64: Fix single-step handling and syscall tracing Will Deacon
2020-07-10 13:06 ` [PATCH v3 1/7] arm64: ptrace: Consistently use pseudo-singlestep exceptions Will Deacon
2020-07-16  0:27   ` Sasha Levin
2020-07-10 13:06 ` [PATCH v3 2/7] arm64: ptrace: Override SPSR.SS when single-stepping is enabled Will Deacon
2020-07-16  0:27   ` Sasha Levin
2020-07-10 13:06 ` [PATCH v3 3/7] arm64: compat: Ensure upper 32 bits of x0 are zero on syscall return Will Deacon
2020-07-16  0:27   ` Sasha Levin
2020-07-10 13:06 ` [PATCH v3 4/7] arm64: ptrace: Add a comment describing our syscall entry/exit trap ABI Will Deacon
2020-07-10 13:07 ` [PATCH v3 5/7] arm64: syscall: Expand the comment about ptrace and syscall(-1) Will Deacon
2020-07-10 13:07 ` [PATCH v3 6/7] arm64: ptrace: Use NO_SYSCALL instead of -1 in syscall_trace_enter() Will Deacon
2020-07-10 16:04   ` Kees Cook
2020-07-10 16:11     ` Will Deacon
2020-07-13  2:32       ` Kees Cook
2020-07-10 13:07 ` [PATCH v3 7/7] arm64: Use test_tsk_thread_flag() for checking TIF_SINGLESTEP Will Deacon
2020-07-14 11:57 ` [PATCH v3 0/7] arm64: Fix single-step handling and syscall tracing Luis Machado
2020-07-15 12:25 ` Luis Machado

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