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From: duwe@lst.de (Torsten Duwe)
To: Mark Rutland <mark.rutland@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Julien Thierry <julien.thierry@arm.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Josh Poimboeuf <jpoimboe@redhat.com>,
	Ingo Molnar <mingo@redhat.com>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Arnd Bergmann <arnd@arndb.de>,
	AKASHI Takahiro <takahiro.akashi@linaro.org>,
	Amit Daniel Kachhap <amit.kachhap@arm.com>
Cc: live-patching@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v8 0/5] arm64: ftrace with regs
Date: Fri,  8 Feb 2019 16:08:26 +0100 (CET)
Message-ID: <20190208150826.44EBC68DD2@newverein.lst.de> (raw)

Patch series v8, as discussed.
The whole series applies cleanly on 5.0-rc5

---
 arch/arm64/Kconfig                    |    4 +
 arch/arm64/Makefile                   |   10 ++
 arch/arm64/include/asm/ftrace.h       |   16 ++++
 arch/arm64/include/asm/module.h       |    3 
 arch/arm64/kernel/Makefile            |   12 +--
 arch/arm64/kernel/entry-ftrace.S      |  125 ++++++++++++++++++++++++++++++++--
 arch/arm64/kernel/ftrace.c            |  117 ++++++++++++++++++++++++-------
 arch/arm64/kernel/module-plts.c       |    3 
 arch/arm64/kernel/module.c            |    2 
 arch/arm64/lib/Makefile               |    4 -
 drivers/firmware/efi/libstub/Makefile |   12 +--
 include/asm-generic/vmlinux.lds.h     |    2 
 include/linux/compiler_types.h        |    4 +
 kernel/module.c                       |   14 +++
 mm/kasan/Makefile                     |    8 +-
 15 files changed, 281 insertions(+), 55 deletions(-)
---
changes since v7:

* -pg -> $(CC_FLAGS_FTRACE) cleanup now split according to subtree
  maintainership.

* REC_IP_BRANCH_OFFSET is gone, the functionality went into
  ftrace_call_adjust(), where it belongs.

* MOV_X9_X30 macro is gone (why did we argue about its name anyway?);
  it is only used once now in the initial ftrace_make_nop new helper
  function ftrace_setup_lr_saver(), suggested by Julien.

* call site processing was missing for modules. Fixed.

changes since v6:

* change the stack layout once more; I hope I have it the "standard" way now.
  And yes, it looks simpler and cleaner; thanks, Mark, for nagging.

* split out the independent Kconfig and Makefile changes

* fixed style issues

* s/fp/x29/g

* MCOUNT_ADDR is now merely a 64-bit magic, as this is totally sufficient.

* QUICK_LR_SAVE renamed back to MOV_X9_X30.

* place MOV_X9_X30 insns on bootup, and only flip b <-> nop at runtime

* graph tracer "ifdeffery" reshuffle

	Torsten
  

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Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-08 15:08 duwe [this message]
2019-02-08 15:10 ` [PATCH v8 1/5] arm64: replace -pg with CC_FLAGS_FTRACE in arm64 Makefiles duwe
2019-02-11 11:53   ` Mark Rutland
2019-02-08 15:10 ` [PATCH v8 2/5] arm64: replace -pg with CC_FLAGS_FTRACE in efi Makefiles duwe
2019-02-11 11:59   ` Mark Rutland
2019-04-08 15:23   ` Mark Rutland
2019-04-08 20:49     ` Ard Biesheuvel
2019-02-08 15:10 ` [PATCH v8 3/5] arm64: replace -pg with CC_FLAGS_FTRACE in mm/kasan Makefile duwe
2019-02-11 11:55   ` Mark Rutland
2019-02-11 11:56   ` Mark Rutland
2019-04-08 15:25   ` Mark Rutland
2019-04-08 15:35   ` Andrey Ryabinin
2019-02-08 15:10 ` [PATCH v8 4/5] arm64: implement ftrace with regs duwe
2019-02-13 10:30   ` Julien Thierry
2019-02-08 15:10 ` [PATCH v8 5/5] arm64: use -fpatchable-function-entry if available duwe
2019-02-13 11:11 ` [PATCH v8 0/5] arm64: ftrace with regs Julien Thierry
2019-03-11 11:49   ` Torsten Duwe
2019-03-11 12:18     ` Mark Rutland
2019-03-29 10:18       ` Torsten Duwe
2019-04-08 15:36     ` Mark Rutland
2019-04-09 17:52       ` Will Deacon
2019-07-10 12:27         ` Ruslan Bilovol
2019-07-24 16:15           ` Mark Rutland
2019-10-16 11:42             ` Jiri Kosina
2019-10-16 17:58               ` Mark Rutland
2019-10-18 17:41                 ` Mark Rutland
2019-10-19 11:01                   ` Torsten Duwe
2019-10-21 11:37                     ` Mark Rutland
2019-10-21 13:20                     ` Josh Poimboeuf

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