Commit 0ab41886 authored by David Miller's avatar David Miller Committed by Arnaldo Carvalho de Melo
Browse files

perf annotate: Add Sparc support 



E.g.:

  $ perf annotate --stdio2
  Samples: 7K of event 'cycles:ppp', 4000 Hz, Event count (approx.): 3086733887
  __gettimeofday  /lib32/libc-2.27.so [Percent: local period]
  Percent│
         │
         │
         │    Disassembly of section .text:
         │
         │    000a6fa0 <__gettimeofday@@GLIBC_2.0>:
    0.47 │      save   %sp, -96, %sp
    0.73 │      sethi  %hi(0xe9000), %l7
         │    → call   __frame_state_for@@GLIBC_2.0+0x480
    0.30 │      add    %l7, 0x58, %l7     ! e9058 <nftw64@@GLIBC_2.3.3+0x818>
    1.33 │      mov    %i0, %o0
         │      mov    %i1, %o1
    0.43 │      mov    0x74, %g1
         │      ta     0x10
   88.92 │    ↓ bcc    30
    2.95 │      clr    %g1
         │      neg    %o0
         │      mov    1, %g1
    0.31 │30:   cmp    %g1, 0
         │      bne,pn %icc, a6fe4 <__gettimeofday@@GLIBC_2.0+0x44>
         │      mov    %o0, %i0
    1.96 │    ← return %i7 + 8
    2.62 │      nop
         │      sethi  %hi(0), %g1
         │      neg    %o0, %g2
         │      add    %g1, 0x160, %g1
         │      ld     [ %l7 + %g1 ], %g1
         │      st     %g2, [ %g7 + %g1 ]
         │    ← return %i7 + 8
         │      mov    -1, %o0

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Link: http://lkml.kernel.org/r/20181016.205555.1070918198627611771.davem@davemloft.net


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent cf790516

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

0 → 100644
+169 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0



static int is_branch_cond(const char *cond)

{

	if (cond[0] == '\0')

		return 1;



	if (cond[0] == 'a' && cond[1] == '\0')

		return 1;



	if (cond[0] == 'c' &&

	    (cond[1] == 'c' || cond[1] == 's') &&

	    cond[2] == '\0')

		return 1;



	if (cond[0] == 'e' &&

	    (cond[1] == '\0' ||

	     (cond[1] == 'q' && cond[2] == '\0')))

		return 1;



	if (cond[0] == 'g' &&

	    (cond[1] == '\0' ||

	     (cond[1] == 't' && cond[2] == '\0') ||

	     (cond[1] == 'e' && cond[2] == '\0') ||

	     (cond[1] == 'e' && cond[2] == 'u' && cond[3] == '\0')))

		return 1;



	if (cond[0] == 'l' &&

	    (cond[1] == '\0' ||

	     (cond[1] == 't' && cond[2] == '\0') ||

	     (cond[1] == 'u' && cond[2] == '\0') ||

	     (cond[1] == 'e' && cond[2] == '\0') ||

	     (cond[1] == 'e' && cond[2] == 'u' && cond[3] == '\0')))

		return 1;



	if (cond[0] == 'n' &&

	    (cond[1] == '\0' ||

	     (cond[1] == 'e' && cond[2] == '\0') ||

	     (cond[1] == 'z' && cond[2] == '\0') ||

	     (cond[1] == 'e' && cond[2] == 'g' && cond[3] == '\0')))

		return 1;



	if (cond[0] == 'b' &&

	    cond[1] == 'p' &&

	    cond[2] == 'o' &&

	    cond[3] == 's' &&

	    cond[4] == '\0')

		return 1;



	if (cond[0] == 'v' &&

	    (cond[1] == 'c' || cond[1] == 's') &&

	    cond[2] == '\0')

		return 1;



	if (cond[0] == 'b' &&

	    cond[1] == 'z' &&

	    cond[2] == '\0')

		return 1;



	return 0;

}



static int is_branch_reg_cond(const char *cond)

{

	if ((cond[0] == 'n' || cond[0] == 'l') &&

	    cond[1] == 'z' &&

	    cond[2] == '\0')

		return 1;



	if (cond[0] == 'z' &&

	    cond[1] == '\0')

		return 1;



	if ((cond[0] == 'g' || cond[0] == 'l') &&

	    cond[1] == 'e' &&

	    cond[2] == 'z' &&

	    cond[3] == '\0')

		return 1;



	if (cond[0] == 'g' &&

	    cond[1] == 'z' &&

	    cond[2] == '\0')

		return 1;



	return 0;

}



static int is_branch_float_cond(const char *cond)

{

	if (cond[0] == '\0')

		return 1;



	if ((cond[0] == 'a' || cond[0] == 'e' ||

	     cond[0] == 'z' || cond[0] == 'g' ||

	     cond[0] == 'l' || cond[0] == 'n' ||

	     cond[0] == 'o' || cond[0] == 'u') &&

	    cond[1] == '\0')

		return 1;



	if (((cond[0] == 'g' && cond[1] == 'e') ||

	     (cond[0] == 'l' && (cond[1] == 'e' ||

				 cond[1] == 'g')) ||

	     (cond[0] == 'n' && (cond[1] == 'e' ||

				 cond[1] == 'z')) ||

	     (cond[0] == 'u' && (cond[1] == 'e' ||

				 cond[1] == 'g' ||

				 cond[1] == 'l'))) &&

	    cond[2] == '\0')

		return 1;



	if (cond[0] == 'u' &&

	    (cond[1] == 'g' || cond[1] == 'l') &&

	    cond[2] == 'e' &&

	    cond[3] == '\0')

		return 1;



	return 0;

}



static struct ins_ops *sparc__associate_instruction_ops(struct arch *arch, const char *name)

{

	struct ins_ops *ops = NULL;



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

	    !strcmp(name, "jmp") ||

	    !strcmp(name, "jmpl")) {

		ops = &call_ops;

	} else if (!strcmp(name, "ret") ||

		   !strcmp(name, "retl") ||

		   !strcmp(name, "return")) {

		ops = &ret_ops;

	} else if (!strcmp(name, "mov")) {

		ops = &mov_ops;

	} else {

		if (name[0] == 'c' &&

		    (name[1] == 'w' || name[1] == 'x'))

			name += 2;



		if (name[0] == 'b') {

			const char *cond = name + 1;



			if (cond[0] == 'r') {

				if (is_branch_reg_cond(cond + 1))

					ops = &jump_ops;

			} else if (is_branch_cond(cond)) {

				ops = &jump_ops;

			}

		} else if (name[0] == 'f' && name[1] == 'b') {

			if (is_branch_float_cond(name + 2))

				ops = &jump_ops;

		}

	}



	if (ops)

		arch__associate_ins_ops(arch, name, ops);



	return ops;

}



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

{

	if (!arch->initialized) {

		arch->initialized = true;

		arch->associate_instruction_ops = sparc__associate_instruction_ops;

		arch->objdump.comment_char = '#';

	}



	return 0;

}

tools/perf/util/annotate.c

+8 −0
Original line number Diff line number Diff line
@@ -139,6 +139,7 @@ static int arch__associate_ins_ops(struct arch* arch, const char *name, struct i 
#include "arch/x86/annotate/instructions.c"

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

#include "arch/s390/annotate/instructions.c"

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



static struct arch architectures[] = {

	{
@@ -170,6 +171,13 @@ static struct arch architectures[] = { 
			.comment_char = '#',

		},

	},

	{

		.name = "sparc",

		.init = sparc__annotate_init,

		.objdump = {

			.comment_char = '#',

		},

	},

};



static void ins__delete(struct ins_operands *ops)

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