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From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
To: Shuah Khan <shuah@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-api@vger.kernel.org,
	Thomas Gleixner <tglx@linutronix.de>,
	Peter Zijlstra <peterz@infradead.org>,
	"Paul E . McKenney" <paulmck@linux.vnet.ibm.com>,
	Boqun Feng <boqun.feng@gmail.com>,
	Andy Lutomirski <luto@amacapital.net>,
	Dave Watson <davejwatson@fb.com>, Paul Turner <pjt@google.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Russell King <linux@arm.linux.org.uk>,
	Ingo Molnar <mingo@redhat.com>, "H . Peter Anvin" <hpa@zytor.com>,
	Andi Kleen <andi@firstfloor.org>, Chris Lameter <cl@linux.com>,
	Ben Maurer <bmaurer@fb.com>, Steven Rostedt <rostedt@goodmis.org>,
	Josh Triplett <josh@joshtriplett.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Michael Kerrisk <mtk.manpages@gmail.com>,
	Joel Fernandes <joelaf@google.com>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Subject: [PATCH for 5.2 00/12] Restartable Sequences selftests updates
Date: Mon, 29 Apr 2019 11:27:51 -0400	[thread overview]
Message-ID: <20190429152803.7719-1-mathieu.desnoyers@efficios.com> (raw)

Those rseq selftests updates are hereby submitted to Shuah Khan,
maintainer of kernel selftests, for the next merge window (5.2).

They change the per-architecture pre-abort signatures to ensure those
are valid trap instructions.

The way exit points are presented to debuggers is enhanced, ensuring
all exit points are present, so debuggers don't have to disassemble
rseq critical section to properly skip over them.

Discussions with the glibc community is reaching a concensus of exposing
a __rseq_handled symbol from glibc to coexist with rseq early adopters.
Update the rseq selftest code to expose and use this symbol.

Support for compiling asm goto with clang is added with the
"-no-integrated-as" compiler switch, similarly to the toplevel kernel
Makefile.

Thanks,

Mathieu

Martin Schwidefsky (1):
  rseq/selftests: s390: use trap4 for RSEQ_SIG

Mathieu Desnoyers (11):
  rseq/selftests: x86: Work-around bogus gcc-8 optimisation
  rseq/selftests: Add __rseq_exit_point_array section for debuggers
  rseq/selftests: Introduce __rseq_cs_ptr_array, rename __rseq_table to
    __rseq_cs
  rseq/selftests: Use __rseq_handled symbol to coexist with glibc
  rseq/selftests: s390: use jg instruction for jumps outside of the asm
  rseq/selftests: x86: use ud1 instruction as RSEQ_SIG opcode
  rseq/selftests: arm: use udf instruction for RSEQ_SIG
  rseq/selftests: aarch64 code signature: handle big-endian environment
  rseq/selftests: powerpc code signature: generate valid instructions
  rseq/selftests: mips: use break instruction for RSEQ_SIG
  rseq/selftests: add -no-integrated-as for clang

 tools/testing/selftests/rseq/Makefile     |   8 +-
 tools/testing/selftests/rseq/rseq-arm.h   | 132 +++++++++++++--
 tools/testing/selftests/rseq/rseq-arm64.h |  74 ++++++++-
 tools/testing/selftests/rseq/rseq-mips.h  | 115 +++++++++++--
 tools/testing/selftests/rseq/rseq-ppc.h   |  90 +++++++++-
 tools/testing/selftests/rseq/rseq-s390.h  |  78 ++++++++-
 tools/testing/selftests/rseq/rseq-x86.h   | 264 +++++++++++++++++++++---------
 tools/testing/selftests/rseq/rseq.c       |  55 ++++++-
 tools/testing/selftests/rseq/rseq.h       |   1 +
 9 files changed, 688 insertions(+), 129 deletions(-)

-- 
2.11.0


             reply	other threads:[~2019-04-29 15:29 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-29 15:27 Mathieu Desnoyers [this message]
2019-04-29 15:27 ` [PATCH for 5.2 01/12] rseq/selftests: x86: Work-around bogus gcc-8 optimisation Mathieu Desnoyers
2019-04-29 15:27 ` [PATCH for 5.2 02/12] rseq/selftests: Add __rseq_exit_point_array section for debuggers Mathieu Desnoyers
2019-04-29 15:27 ` [PATCH for 5.2 03/12] rseq/selftests: Introduce __rseq_cs_ptr_array, rename __rseq_table to __rseq_cs Mathieu Desnoyers
2019-04-29 15:27 ` [PATCH for 5.2 04/12] rseq/selftests: Use __rseq_handled symbol to coexist with glibc Mathieu Desnoyers
2019-04-29 15:27 ` [PATCH for 5.2 05/12] rseq/selftests: s390: use jg instruction for jumps outside of the asm Mathieu Desnoyers
2019-04-29 15:27 ` [PATCH for 5.2 06/12] rseq/selftests: x86: use ud1 instruction as RSEQ_SIG opcode Mathieu Desnoyers
2019-04-29 15:27 ` [PATCH for 5.2 07/12] rseq/selftests: s390: use trap4 for RSEQ_SIG Mathieu Desnoyers
2019-05-16 20:39   ` shuah
2019-05-16 20:49     ` Mathieu Desnoyers
2019-04-29 15:27 ` [PATCH for 5.2 08/12] rseq/selftests: arm: use udf instruction " Mathieu Desnoyers
2019-05-03 19:38   ` [PATCH v2 " Mathieu Desnoyers
2019-06-06 18:02     ` Mathieu Desnoyers
2019-06-08 15:52       ` Mathieu Desnoyers
2019-04-29 15:28 ` [PATCH for 5.2 09/12] rseq/selftests: aarch64 code signature: handle big-endian environment Mathieu Desnoyers
2019-04-29 15:28 ` [PATCH for 5.2 10/12] rseq/selftests: powerpc code signature: generate valid instructions Mathieu Desnoyers
2019-04-29 15:28 ` [PATCH for 5.2 11/12] rseq/selftests: mips: use break instruction for RSEQ_SIG Mathieu Desnoyers
2019-04-29 15:28 ` [PATCH for 5.2 12/12] rseq/selftests: add -no-integrated-as for clang Mathieu Desnoyers
2019-04-29 17:03   ` Nick Desaulniers
2019-04-29 20:28     ` Mathieu Desnoyers
2019-04-29 20:30       ` Nick Desaulniers
2019-05-03 18:36 ` [PATCH for 5.2 00/12] Restartable Sequences selftests updates Mathieu Desnoyers
2019-05-03 18:53   ` shuah
2019-05-03 19:22     ` Mathieu Desnoyers
2019-05-03 21:46       ` Joe Perches
2019-05-03 22:59       ` shuah

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