Commit aa23aa55 authored by Mao Han's avatar Mao Han Committed by Arnaldo Carvalho de Melo
Browse files

perf annotate: Add csky support 



This patch add basic arch initialization and instruction associate
support for the csky CPU architecture.

E.g.:

  $ perf annotate --stdio2
  Samples: 161  of event 'cpu-clock:pppH', 4000 Hz, Event count (approx.):
  40250000, [percent: local period]
  test_4() /usr/lib/perf-test/callchain_test
  Percent

              Disassembly of section .text:

              00008420 <test_4>:
            test_4():
                subi  sp, sp, 4
                st.w  r8, (sp, 0x0)
                mov   r8, sp
                subi  sp, sp, 8
                subi  r3, r8, 4
                movi  r2, 0
                st.w  r2, (r3, 0x0)
              ↓ br    2e
  100.00  14:   subi  r3, r8, 4
                ld.w  r2, (r3, 0x0)
                subi  r3, r8, 8
                st.w  r2, (r3, 0x0)
                subi  r3, r8, 4
                ld.w  r3, (r3, 0x0)
                addi  r2, r3, 1
                subi  r3, r8, 4
                st.w  r2, (r3, 0x0)
          2e:   subi  r3, r8, 4
                ld.w  r2, (r3, 0x0)
                lrw   r3, 0x98967f    // 8598 <main+0x28>
                cmplt r3, r2
              ↑ bf    14
                mov   r0, r0
                mov   r0, r0
                mov   sp, r8
                ld.w  r8, (sp, 0x0)
                addi  sp, sp, 4
              ← rts

Signed-off-by: default avatarMao Han <han_mao@c-sky.com>
Acked-by: default avatarGuo Ren <guoren@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-csky@vger.kernel.org
Link: http://lkml.kernel.org/r/d874d7782d9acdad5d98f2f5c4a6fb26fbe41c5d.1561531557.git.han_mao@c-sky.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent e3a94273

tools/perf/arch/csky/annotate/instructions.c

0 → 100644
+48 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd.



#include <linux/compiler.h>



static struct ins_ops *csky__associate_ins_ops(struct arch *arch,

					       const char *name)

{

	struct ins_ops *ops = NULL;



	/* catch all kind of jumps */

	if (!strcmp(name, "bt") ||

	    !strcmp(name, "bf") ||

	    !strcmp(name, "bez") ||

	    !strcmp(name, "bnez") ||

	    !strcmp(name, "bnezad") ||

	    !strcmp(name, "bhsz") ||

	    !strcmp(name, "bhz") ||

	    !strcmp(name, "blsz") ||

	    !strcmp(name, "blz") ||

	    !strcmp(name, "br") ||

	    !strcmp(name, "jmpi") ||

	    !strcmp(name, "jmp"))

		ops = &jump_ops;



	/* catch function call */

	if (!strcmp(name, "bsr") ||

	    !strcmp(name, "jsri") ||

	    !strcmp(name, "jsr"))

		ops = &call_ops;



	/* catch function return */

	if (!strcmp(name, "rts"))

		ops = &ret_ops;



	if (ops)

		arch__associate_ins_ops(arch, name, ops);

	return ops;

}



static int csky__annotate_init(struct arch *arch, char *cpuid __maybe_unused)

{

	arch->initialized = true;

	arch->objdump.comment_char = '/';

	arch->associate_instruction_ops = csky__associate_ins_ops;



	return 0;

}

tools/perf/util/annotate.c

+5 −0
Original line number Diff line number Diff line
@@ -145,6 +145,7 @@ static int arch__associate_ins_ops(struct arch* arch, const char *name, struct i 
#include "arch/arc/annotate/instructions.c"

#include "arch/arm/annotate/instructions.c"

#include "arch/arm64/annotate/instructions.c"

#include "arch/csky/annotate/instructions.c"

#include "arch/x86/annotate/instructions.c"

#include "arch/powerpc/annotate/instructions.c"

#include "arch/s390/annotate/instructions.c"
@@ -163,6 +164,10 @@ static struct arch architectures[] = { 
		.name = "arm64",

		.init = arm64__annotate_init,

	},

	{

		.name = "csky",

		.init = csky__annotate_init,

	},

	{

		.name = "x86",

		.init = x86__annotate_init,

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