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From: Josh Poimboeuf <jpoimboe@redhat.com>
To: x86@kernel.org
Cc: linux-kernel@vger.kernel.org,
	Peter Zijlstra <peterz@infradead.org>,
	Song Liu <songliubraving@fb.com>, Kairui Song <kasong@redhat.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Borislav Petkov <bp@alien8.de>, Ingo Molnar <mingo@kernel.org>
Subject: [PATCH v3 0/4] x86: bpf unwinder fixes
Date: Wed, 26 Jun 2019 19:33:51 -0500	[thread overview]
Message-ID: <cover.1561595111.git.jpoimboe@redhat.com> (raw)

v3:

- Drop even more NACKed BPF changes.

- Coincidentally, a separate fix has already been merged for JIT frame
  pointers:

    fe8d9571dc50 ("bpf, x64: fix stack layout of JITed bpf code")

- 32-bit JIT frame pointers are still broken.  I have a small patch
  which should fix it, if anybody wants to try interacting with the
  maintainer.

- Split the objtool jump table detection feature into a separate patch
  to clarify that it's a generic objtool feature.

Josh Poimboeuf (3):
  objtool: Add support for C jump tables
  bpf: Fix ORC unwinding in non-JIT BPF code
  x86/unwind/orc: Fall back to using frame pointers for generated code

Song Liu (1):
  perf/x86: Always store regs->ip in perf_callchain_kernel()

 arch/x86/events/core.c       | 10 +++++-----
 arch/x86/kernel/unwind_orc.c | 26 ++++++++++++++++++++++----
 kernel/bpf/core.c            |  5 ++---
 tools/objtool/check.c        | 16 ++++++++++++++--
 4 files changed, 43 insertions(+), 14 deletions(-)

-- 
2.20.1


             reply	other threads:[~2019-06-27  0:35 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-27  0:33 Josh Poimboeuf [this message]
2019-06-27  0:33 ` [PATCH v3 1/4] perf/x86: Always store regs->ip in perf_callchain_kernel() Josh Poimboeuf
2019-06-27 22:22   ` [tip:x86/urgent] " tip-bot for Song Liu
2019-06-27  0:33 ` [PATCH v3 2/4] objtool: Add support for C jump tables Josh Poimboeuf
2019-06-27  1:42   ` Alexei Starovoitov
2019-06-27  2:47     ` Josh Poimboeuf
2019-06-27  2:54       ` Alexei Starovoitov
2019-06-27  3:44         ` Josh Poimboeuf
2019-06-27  3:56           ` Josh Poimboeuf
2019-06-27  4:38             ` Alexei Starovoitov
2019-06-27 12:58       ` Steven Rostedt
2019-06-27  0:33 ` [PATCH v3 3/4] bpf: Fix ORC unwinding in non-JIT BPF code Josh Poimboeuf
2019-06-27  0:57   ` Alexei Starovoitov
2019-06-27  1:06     ` Josh Poimboeuf
2019-06-27  1:22       ` Alexei Starovoitov
2019-06-27  1:30         ` Josh Poimboeuf
2019-06-27  0:33 ` [PATCH v3 4/4] x86/unwind/orc: Fall back to using frame pointers for generated code Josh Poimboeuf
2019-06-27 22:22   ` [tip:x86/urgent] " tip-bot for Josh Poimboeuf

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