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From: Ard Biesheuvel <ardb@kernel.org>
To: linux@armlinux.org.uk, linux-arm-kernel@lists.infradead.org
Cc: Ard Biesheuvel <ardb@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
	Linus Walleij <linus.walleij@linaro.org>,
	Nick Desaulniers <ndesaulniers@google.com>
Subject: [PATCH 0/8] ARM: ftrace fixes and cleanups
Date: Tue, 25 Jan 2022 16:36:48 +0100	[thread overview]
Message-ID: <20220125153656.1802079-1-ardb@kernel.org> (raw)

This series addresses a number of issues in the ARM support code for
ftrace, mostly related to Thumb2 but affecting other configurations as
well.

Cc: Russell King <linux@armlinux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>

Ard Biesheuvel (8):
  ARM: ftrace: ensure that ADR take Thumb bit into account
  ARM: ftrace: use ADD not POP to counter PUSH at entry
  ARM: ftrace: use trampolines to keep .init.text in branching range
  ARM: ftrace: avoid redundant loads or clobbering IP
  ARM: ftrace: avoid unnecessary literal loads
  ARM: ftrace: enable HAVE_FUNCTION_GRAPH_FP_TEST
  ARM: unwind: track location of LR value in stack frame
  ARM: ftrace: enable the graph tracer with the EABI unwinder

 arch/arm/Kconfig                  |   2 +-
 arch/arm/Kconfig.debug            |   2 +-
 arch/arm/include/asm/ftrace.h     |  20 +--
 arch/arm/include/asm/stacktrace.h |   2 +
 arch/arm/kernel/Makefile          |   6 +-
 arch/arm/kernel/entry-ftrace.S    | 128 +++++++++++---------
 arch/arm/kernel/ftrace.c          |  47 ++++++-
 arch/arm/kernel/unwind.c          |   7 +-
 8 files changed, 125 insertions(+), 89 deletions(-)

-- 
2.30.2


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             reply	other threads:[~2022-01-25 15:45 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-25 15:36 Ard Biesheuvel [this message]
2022-01-25 15:36 ` [PATCH 1/8] ARM: ftrace: ensure that ADR take Thumb bit into account Ard Biesheuvel
2022-01-25 19:14   ` Nick Desaulniers
2022-02-02 23:53   ` Linus Walleij
2022-01-25 15:36 ` [PATCH 2/8] ARM: ftrace: use ADD not POP to counter PUSH at entry Ard Biesheuvel
2022-01-25 19:23   ` Nick Desaulniers
2022-02-02 23:59   ` Linus Walleij
2022-01-25 15:36 ` [PATCH 3/8] ARM: ftrace: use trampolines to keep .init.text in branching range Ard Biesheuvel
2022-01-25 20:20   ` Nick Desaulniers
2022-02-03  0:12   ` Linus Walleij
2022-01-25 15:36 ` [PATCH 4/8] ARM: ftrace: avoid redundant loads or clobbering IP Ard Biesheuvel
2022-01-25 15:36 ` [PATCH 5/8] ARM: ftrace: avoid unnecessary literal loads Ard Biesheuvel
2022-01-25 20:27   ` Nick Desaulniers
2022-01-25 15:36 ` [PATCH 6/8] ARM: ftrace: enable HAVE_FUNCTION_GRAPH_FP_TEST Ard Biesheuvel
2022-01-25 15:36 ` [PATCH 7/8] ARM: unwind: track location of LR value in stack frame Ard Biesheuvel
2022-01-25 15:36 ` [PATCH 8/8] ARM: ftrace: enable the graph tracer with the EABI unwinder Ard Biesheuvel

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