From: Will Deacon <will.deacon@arm.com>
To: AKASHI Takahiro <takahiro.akashi@linaro.org>
Cc: "rostedt@goodmis.org" <rostedt@goodmis.org>,
"fweisbec@gmail.com" <fweisbec@gmail.com>,
"mingo@redhat.com" <mingo@redhat.com>,
Catalin Marinas <Catalin.Marinas@arm.com>,
"tim.bird@sonymobile.com" <tim.bird@sonymobile.com>,
"gkulkarni@caviumnetworks.com" <gkulkarni@caviumnetworks.com>,
"dsaxena@linaro.org" <dsaxena@linaro.org>,
"arndb@arndb.de" <arndb@arndb.de>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linaro-kernel@lists.linaro.org" <linaro-kernel@lists.linaro.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v7 3/7] ftrace: Add arm64 support to recordmcount
Date: Wed, 16 Apr 2014 14:31:45 +0100 [thread overview]
Message-ID: <20140416133145.GC1001@arm.com> (raw)
In-Reply-To: <1394862048-28758-4-git-send-email-takahiro.akashi@linaro.org>
On Sat, Mar 15, 2014 at 05:40:44AM +0000, AKASHI Takahiro wrote:
> Recordmcount utility under scripts is run, after compiling each object,
> to find out all the locations of calling _mcount() and put them into
> specific seciton named __mcount_loc.
> Then linker collects all such information into a table in the kernel image
> (between __start_mcount_loc and __stop_mcount_loc) for later use by ftrace.
>
> This patch adds arm64 specific definitions to identify such locations.
> There are two types of implementation, C and Perl. On arm64, only C version
> is used to build the kernel now that CONFIG_HAVE_C_RECORDMCOUNT is on.
> But Perl version is also maintained.
>
> This patch also contains a workaround just in case where a header file,
> elf.h, on host machine doesn't have definitions of EM_AARCH64 nor
> R_AARCH64_ABS64. Without them, compiling C version of recordmcount will
> fail.
>
> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Will
WARNING: multiple messages have this Message-ID (diff)
From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v7 3/7] ftrace: Add arm64 support to recordmcount
Date: Wed, 16 Apr 2014 14:31:45 +0100 [thread overview]
Message-ID: <20140416133145.GC1001@arm.com> (raw)
In-Reply-To: <1394862048-28758-4-git-send-email-takahiro.akashi@linaro.org>
On Sat, Mar 15, 2014 at 05:40:44AM +0000, AKASHI Takahiro wrote:
> Recordmcount utility under scripts is run, after compiling each object,
> to find out all the locations of calling _mcount() and put them into
> specific seciton named __mcount_loc.
> Then linker collects all such information into a table in the kernel image
> (between __start_mcount_loc and __stop_mcount_loc) for later use by ftrace.
>
> This patch adds arm64 specific definitions to identify such locations.
> There are two types of implementation, C and Perl. On arm64, only C version
> is used to build the kernel now that CONFIG_HAVE_C_RECORDMCOUNT is on.
> But Perl version is also maintained.
>
> This patch also contains a workaround just in case where a header file,
> elf.h, on host machine doesn't have definitions of EM_AARCH64 nor
> R_AARCH64_ABS64. Without them, compiling C version of recordmcount will
> fail.
>
> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Will
next prev parent reply other threads:[~2014-04-16 13:38 UTC|newest]
Thread overview: 235+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-24 7:08 [PATCH v2 0/6] arm64: Add ftrace support AKASHI Takahiro
2013-10-24 7:08 ` [PATCH v2 1/6] " AKASHI Takahiro
2013-10-24 7:08 ` [PATCH v2 2/6] arm64: ftrace: Add dynamic " AKASHI Takahiro
2013-10-24 7:08 ` [PATCH v2 3/6] arm64: ftrace: Add CALLER_ADDRx macros AKASHI Takahiro
2013-10-24 7:08 ` [PATCH v2 4/6] ftrace: Add arm64 support to recordmcount AKASHI Takahiro
2013-10-24 7:08 ` [PATCH v2 5/6] arm64: ftrace: Add system call tracepoint AKASHI Takahiro
2013-10-24 7:08 ` [PATCH v2 6/6] arm64: Add 'notrace' attribute to unwind_frame() for ftrace AKASHI Takahiro
2014-02-07 10:18 ` [PATCH v3 0/6] arm64: Add ftrace support AKASHI Takahiro
2014-02-07 10:18 ` AKASHI Takahiro
2014-02-07 10:18 ` [PATCH v3 1/6] " AKASHI Takahiro
2014-02-07 10:18 ` AKASHI Takahiro
2014-02-10 15:03 ` Arnd Bergmann
2014-02-10 15:03 ` Arnd Bergmann
2014-02-10 15:19 ` Steven Rostedt
2014-02-10 15:19 ` Steven Rostedt
[not found] ` <CAB5YjtCr2KL_q1FF8kO_VKe+feg7f9qFRKtwf3xj2h0ENwuB5g@mail.gmail.com>
2014-02-12 11:03 ` Arnd Bergmann
2014-02-12 11:03 ` Arnd Bergmann
2014-02-17 18:12 ` Will Deacon
2014-02-17 18:12 ` Will Deacon
2014-02-19 10:46 ` AKASHI Takahiro
2014-02-19 10:46 ` AKASHI Takahiro
2014-02-07 10:18 ` [PATCH v3 2/6] arm64: ftrace: Add dynamic " AKASHI Takahiro
2014-02-07 10:18 ` AKASHI Takahiro
2014-02-07 10:18 ` [PATCH v3 3/6] arm64: ftrace: Add CALLER_ADDRx macros AKASHI Takahiro
2014-02-07 10:18 ` AKASHI Takahiro
2014-02-07 10:18 ` [PATCH v3 4/6] ftrace: Add arm64 support to recordmcount AKASHI Takahiro
2014-02-07 10:18 ` AKASHI Takahiro
2014-02-07 10:18 ` [PATCH v3 5/6] arm64: ftrace: Add system call tracepoint AKASHI Takahiro
2014-02-07 10:18 ` AKASHI Takahiro
2014-02-17 19:29 ` Will Deacon
2014-02-17 19:29 ` Will Deacon
2014-02-19 10:48 ` AKASHI Takahiro
2014-02-19 10:48 ` AKASHI Takahiro
2014-02-07 10:18 ` [PATCH v3 6/6] arm64: Add 'notrace' attribute to unwind_frame() for ftrace AKASHI Takahiro
2014-02-07 10:18 ` AKASHI Takahiro
2014-02-10 14:21 ` [PATCH v3 0/6] arm64: Add ftrace support Kulkarni, Ganapatrao
2014-02-10 14:21 ` Kulkarni, Ganapatrao
2014-02-25 9:23 ` [PATCH v4 0/7] " AKASHI Takahiro
2014-02-25 9:23 ` AKASHI Takahiro
2014-02-25 9:23 ` [PATCH v4 1/7] " AKASHI Takahiro
2014-02-25 9:23 ` AKASHI Takahiro
2014-02-25 15:38 ` Kulkarni, Ganapatrao
2014-02-25 15:38 ` Kulkarni, Ganapatrao
2014-02-28 5:06 ` AKASHI Takahiro
2014-02-28 5:06 ` AKASHI Takahiro
2014-02-25 9:23 ` [PATCH v4 2/7] arm64: ftrace: Add dynamic " AKASHI Takahiro
2014-02-25 9:23 ` AKASHI Takahiro
2014-02-25 9:23 ` [PATCH v4 3/7] arm64: ftrace: Add CALLER_ADDRx macros AKASHI Takahiro
2014-02-25 9:23 ` AKASHI Takahiro
2014-02-25 9:23 ` [PATCH v4 4/7] ftrace: Add arm64 support to recordmcount AKASHI Takahiro
2014-02-25 9:23 ` AKASHI Takahiro
2014-02-25 9:23 ` [PATCH v4 5/7] arm64: ftrace: Add system call tracepoint AKASHI Takahiro
2014-02-25 9:23 ` AKASHI Takahiro
2014-02-25 9:23 ` [PATCH v4 6/7] arm64: Add 'notrace' attribute to unwind_frame() for ftrace AKASHI Takahiro
2014-02-25 9:23 ` AKASHI Takahiro
2014-02-25 9:23 ` [PATCH v4 7/7] arm64: add __ASSEMBLY__ in asm/insn.h AKASHI Takahiro
2014-02-25 9:23 ` AKASHI Takahiro
2014-02-28 5:18 ` [PATCH v5 0/7] arm64: Add ftrace support AKASHI Takahiro
2014-02-28 5:18 ` AKASHI Takahiro
2014-02-28 5:18 ` [PATCH v5 1/7] " AKASHI Takahiro
2014-02-28 5:18 ` AKASHI Takahiro
2014-02-28 5:18 ` [PATCH v5 2/7] arm64: ftrace: Add dynamic " AKASHI Takahiro
2014-02-28 5:18 ` AKASHI Takahiro
2014-02-28 5:18 ` [PATCH v5 3/7] arm64: ftrace: Add CALLER_ADDRx macros AKASHI Takahiro
2014-02-28 5:18 ` AKASHI Takahiro
2014-02-28 5:18 ` [PATCH v5 4/7] ftrace: Add arm64 support to recordmcount AKASHI Takahiro
2014-02-28 5:18 ` AKASHI Takahiro
2014-02-28 5:18 ` [PATCH v5 5/7] arm64: ftrace: Add system call tracepoint AKASHI Takahiro
2014-02-28 5:18 ` AKASHI Takahiro
2014-02-28 5:18 ` [PATCH v5 6/7] arm64: Add 'notrace' attribute to unwind_frame() for ftrace AKASHI Takahiro
2014-02-28 5:18 ` AKASHI Takahiro
2014-02-28 5:18 ` [PATCH v5 7/7] arm64: add __ASSEMBLY__ in asm/insn.h AKASHI Takahiro
2014-02-28 5:18 ` AKASHI Takahiro
2014-03-11 14:35 ` [PATCH v5 0/7] arm64: Add ftrace support Will Deacon
2014-03-11 14:35 ` Will Deacon
2014-03-12 1:47 ` AKASHI Takahiro
2014-03-12 1:47 ` AKASHI Takahiro
2014-03-12 1:58 ` Steven Rostedt
2014-03-12 1:58 ` Steven Rostedt
2014-03-12 2:02 ` Steven Rostedt
2014-03-12 2:02 ` Steven Rostedt
2014-03-13 10:13 ` [PATCH v6 " AKASHI Takahiro
2014-03-13 10:13 ` AKASHI Takahiro
2014-03-13 10:13 ` [PATCH v6 1/7] arm64: add __ASSEMBLY__ in asm/insn.h AKASHI Takahiro
2014-03-13 10:13 ` AKASHI Takahiro
2014-03-13 12:19 ` Will Deacon
2014-03-13 12:19 ` Will Deacon
2014-03-13 10:13 ` [PATCH v6 2/7] arm64: Add 'notrace' attribute to unwind_frame() for ftrace AKASHI Takahiro
2014-03-13 10:13 ` AKASHI Takahiro
2014-03-13 12:19 ` Will Deacon
2014-03-13 12:19 ` Will Deacon
2014-03-13 10:13 ` [PATCH v6 3/7] ftrace: Add arm64 support to recordmcount AKASHI Takahiro
2014-03-13 10:13 ` AKASHI Takahiro
2014-03-13 12:38 ` Will Deacon
2014-03-13 12:38 ` Will Deacon
2014-03-13 14:57 ` AKASHI Takahiro
2014-03-13 14:57 ` AKASHI Takahiro
2014-03-13 16:05 ` Will Deacon
2014-03-13 16:05 ` Will Deacon
2014-03-13 10:13 ` [PATCH v6 4/7] arm64: Add ftrace support AKASHI Takahiro
2014-03-13 10:13 ` AKASHI Takahiro
2014-03-13 17:08 ` Will Deacon
2014-03-13 17:08 ` Will Deacon
2014-03-13 18:27 ` Steven Rostedt
2014-03-13 18:27 ` Steven Rostedt
2014-03-13 18:37 ` Will Deacon
2014-03-13 18:37 ` Will Deacon
2014-03-13 18:49 ` Steven Rostedt
2014-03-13 18:49 ` Steven Rostedt
2014-03-14 4:45 ` AKASHI Takahiro
2014-03-14 4:45 ` AKASHI Takahiro
2014-03-14 10:07 ` Will Deacon
2014-03-14 10:07 ` Will Deacon
2014-03-14 16:13 ` AKASHI Takahiro
2014-03-14 16:13 ` AKASHI Takahiro
2014-03-13 10:13 ` [PATCH v6 5/7] arm64: ftrace: Add dynamic " AKASHI Takahiro
2014-03-13 10:13 ` AKASHI Takahiro
2014-03-13 18:10 ` Will Deacon
2014-03-13 18:10 ` Will Deacon
2014-03-13 18:33 ` Steven Rostedt
2014-03-13 18:33 ` Steven Rostedt
2014-03-14 5:28 ` AKASHI Takahiro
2014-03-14 5:28 ` AKASHI Takahiro
2014-03-14 5:26 ` AKASHI Takahiro
2014-03-14 5:26 ` AKASHI Takahiro
2014-03-13 10:13 ` [PATCH v6 6/7] arm64: ftrace: Add CALLER_ADDRx macros AKASHI Takahiro
2014-03-13 10:13 ` AKASHI Takahiro
2014-03-13 15:54 ` Will Deacon
2014-03-13 15:54 ` Will Deacon
2014-03-13 18:07 ` Steven Rostedt
2014-03-13 18:07 ` Steven Rostedt
2014-03-14 4:55 ` AKASHI Takahiro
2014-03-14 4:55 ` AKASHI Takahiro
2014-03-14 3:00 ` AKASHI Takahiro
2014-03-14 3:00 ` AKASHI Takahiro
2014-03-14 10:09 ` Will Deacon
2014-03-14 10:09 ` Will Deacon
2014-03-14 16:15 ` AKASHI Takahiro
2014-03-14 16:15 ` AKASHI Takahiro
2014-03-13 10:13 ` [PATCH v6 7/7] arm64: ftrace: Add system call tracepoint AKASHI Takahiro
2014-03-13 10:13 ` AKASHI Takahiro
2014-03-13 16:25 ` Will Deacon
2014-03-13 16:25 ` Will Deacon
2014-03-14 3:50 ` AKASHI Takahiro
2014-03-14 3:50 ` AKASHI Takahiro
2014-03-15 5:40 ` [PATCH v7 0/7] arm64: Add ftrace support AKASHI Takahiro
2014-03-15 5:40 ` AKASHI Takahiro
2014-03-15 5:40 ` [PATCH v7 1/7] arm64: add __ASSEMBLY__ in asm/insn.h AKASHI Takahiro
2014-03-15 5:40 ` AKASHI Takahiro
2014-03-15 5:40 ` [PATCH v7 2/7] arm64: Add 'notrace' attribute to unwind_frame() for ftrace AKASHI Takahiro
2014-03-15 5:40 ` AKASHI Takahiro
2014-03-15 5:40 ` [PATCH v7 3/7] ftrace: Add arm64 support to recordmcount AKASHI Takahiro
2014-03-15 5:40 ` AKASHI Takahiro
2014-04-16 13:31 ` Will Deacon [this message]
2014-04-16 13:31 ` Will Deacon
2014-04-30 9:54 ` [PATCH v8 0/8] arm64: Add ftrace support AKASHI Takahiro
2014-04-30 9:54 ` AKASHI Takahiro
2014-04-30 9:54 ` [PATCH v8 1/8] ftrace: make CALLER_ADDRx macros more generic AKASHI Takahiro
2014-04-30 9:54 ` AKASHI Takahiro
2014-05-02 18:13 ` Will Deacon
2014-05-02 18:13 ` Will Deacon
2014-05-02 19:02 ` Steven Rostedt
2014-05-02 19:02 ` Steven Rostedt
2014-05-02 19:03 ` Steven Rostedt
2014-05-02 19:03 ` Steven Rostedt
2014-05-02 19:19 ` Steven Rostedt
2014-05-02 19:19 ` Steven Rostedt
2014-05-12 15:58 ` Will Deacon
2014-05-12 15:58 ` Will Deacon
2014-05-12 16:05 ` Steven Rostedt
2014-05-12 16:05 ` Steven Rostedt
2014-05-12 16:12 ` Will Deacon
2014-05-12 16:12 ` Will Deacon
2014-05-12 17:23 ` Steven Rostedt
2014-05-12 17:23 ` Steven Rostedt
2014-05-20 11:29 ` AKASHI Takahiro
2014-05-20 11:29 ` AKASHI Takahiro
2014-05-20 11:31 ` [PATCH v8_1] " AKASHI Takahiro
2014-05-20 11:31 ` AKASHI Takahiro
2014-06-11 12:34 ` [PATCH v8 1/8] " Geert Uytterhoeven
2014-06-11 12:34 ` Geert Uytterhoeven
2014-06-11 12:34 ` Geert Uytterhoeven
2014-06-11 13:23 ` [PATCH] arm/ftrace: Fix function_return_addr() to function_return_address() Steven Rostedt
2014-06-11 13:23 ` Steven Rostedt
2014-06-11 13:23 ` Steven Rostedt
2014-06-11 13:38 ` Geert Uytterhoeven
2014-06-11 13:38 ` Geert Uytterhoeven
2014-06-11 13:38 ` Geert Uytterhoeven
2014-06-11 13:44 ` Steven Rostedt
2014-06-11 13:44 ` Steven Rostedt
2014-06-11 13:44 ` Steven Rostedt
2014-04-30 9:54 ` [PATCH v8 2/8] arm64: add __ASSEMBLY__ in asm/insn.h AKASHI Takahiro
2014-04-30 9:54 ` AKASHI Takahiro
2014-04-30 9:54 ` [PATCH v8 3/8] arm64: Add 'notrace' attribute to unwind_frame() for ftrace AKASHI Takahiro
2014-04-30 9:54 ` AKASHI Takahiro
2014-04-30 9:54 ` [PATCH v8 4/8] ftrace: Add arm64 support to recordmcount AKASHI Takahiro
2014-04-30 9:54 ` AKASHI Takahiro
2014-04-30 9:54 ` [PATCH v8 5/8] arm64: Add ftrace support AKASHI Takahiro
2014-04-30 9:54 ` AKASHI Takahiro
2014-05-28 20:19 ` Mark Brown
2014-05-28 20:19 ` Mark Brown
2014-05-29 8:07 ` Will Deacon
2014-05-29 8:07 ` Will Deacon
2014-05-29 9:47 ` Mark Brown
2014-05-29 9:47 ` Mark Brown
2014-04-30 9:54 ` [PATCH v8 6/8] arm64: ftrace: Add dynamic " AKASHI Takahiro
2014-04-30 9:54 ` AKASHI Takahiro
2014-04-30 9:54 ` [PATCH v8 7/8] arm64: ftrace: Add CALLER_ADDRx macros AKASHI Takahiro
2014-04-30 9:54 ` AKASHI Takahiro
2014-04-30 9:54 ` [PATCH v8 8/8] arm64: ftrace: Add system call tracepoint AKASHI Takahiro
2014-04-30 9:54 ` AKASHI Takahiro
2014-03-15 5:45 ` [PATCH v7 4/7] arm64: Add ftrace support AKASHI Takahiro
2014-03-15 5:45 ` AKASHI Takahiro
2014-04-16 13:45 ` Will Deacon
2014-04-16 13:45 ` Will Deacon
2014-03-15 5:45 ` [PATCH v7 5/7] arm64: ftrace: Add dynamic " AKASHI Takahiro
2014-03-15 5:45 ` AKASHI Takahiro
2014-04-16 13:48 ` Will Deacon
2014-04-16 13:48 ` Will Deacon
2014-03-15 5:45 ` [PATCH v7 6/7] arm64: ftrace: Add CALLER_ADDRx macros AKASHI Takahiro
2014-03-15 5:45 ` AKASHI Takahiro
2014-04-16 13:52 ` Will Deacon
2014-04-16 13:52 ` Will Deacon
2014-04-28 10:41 ` AKASHI Takahiro
2014-04-28 10:41 ` AKASHI Takahiro
2014-05-27 13:10 ` [for-next][PATCH] ftrace: Make CALLER_ADDRx macros more generic Steven Rostedt
2014-05-27 13:10 ` Steven Rostedt
2014-05-27 18:49 ` Will Deacon
2014-05-27 18:49 ` Will Deacon
2014-05-29 5:27 ` AKASHI Takahiro
2014-05-29 5:27 ` AKASHI Takahiro
2014-05-29 8:10 ` Will Deacon
2014-05-29 8:10 ` Will Deacon
2014-03-15 5:45 ` [PATCH v7 7/7] arm64: ftrace: Add system call tracepoint AKASHI Takahiro
2014-03-15 5:45 ` AKASHI Takahiro
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