annotate.c 39.8 KB
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/*
 * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
 *
 * Parts came from builtin-annotate.c, see those files for further
 * copyright notes.
 *
 * Released under the GPL v2. (and only v2, not any later version)
 */

#include "util.h"
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#include "ui/ui.h"
#include "sort.h"
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#include "build-id.h"
#include "color.h"
#include "cache.h"
#include "symbol.h"
#include "debug.h"
#include "annotate.h"
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#include "evsel.h"
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#include <regex.h>
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#include <pthread.h>
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#include <linux/bitops.h>
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const char 	*disassembler_style;
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const char	*objdump_path;
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static regex_t	 file_lineno;
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static struct ins *ins__find(const char *name);
static int disasm_line__parse(char *line, char **namep, char **rawp);

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static void ins__delete(struct ins_operands *ops)
{
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	if (ops == NULL)
		return;
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	zfree(&ops->source.raw);
	zfree(&ops->source.name);
	zfree(&ops->target.raw);
	zfree(&ops->target.name);
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}

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static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size,
			      struct ins_operands *ops)
{
	return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->raw);
}

int ins__scnprintf(struct ins *ins, char *bf, size_t size,
		  struct ins_operands *ops)
{
	if (ins->ops->scnprintf)
		return ins->ops->scnprintf(ins, bf, size, ops);

	return ins__raw_scnprintf(ins, bf, size, ops);
}

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static int call__parse(struct ins_operands *ops)
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{
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	char *endptr, *tok, *name;

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	ops->target.addr = strtoull(ops->raw, &endptr, 16);
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	name = strchr(endptr, '<');
	if (name == NULL)
		goto indirect_call;

	name++;

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#ifdef __arm__
	if (strchr(name, '+'))
		return -1;
#endif

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	tok = strchr(name, '>');
	if (tok == NULL)
		return -1;

	*tok = '\0';
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	ops->target.name = strdup(name);
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	*tok = '>';

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	return ops->target.name == NULL ? -1 : 0;
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indirect_call:
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	tok = strchr(endptr, '(');
	if (tok != NULL) {
		ops->target.addr = 0;
		return 0;
	}

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	tok = strchr(endptr, '*');
	if (tok == NULL)
		return -1;

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	ops->target.addr = strtoull(tok + 1, NULL, 16);
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	return 0;
}

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static int call__scnprintf(struct ins *ins, char *bf, size_t size,
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			   struct ins_operands *ops)
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{
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	if (ops->target.name)
		return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->target.name);
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	if (ops->target.addr == 0)
		return ins__raw_scnprintf(ins, bf, size, ops);

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	return scnprintf(bf, size, "%-6.6s *%" PRIx64, ins->name, ops->target.addr);
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}

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static struct ins_ops call_ops = {
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	.parse	   = call__parse,
	.scnprintf = call__scnprintf,
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};

bool ins__is_call(const struct ins *ins)
{
	return ins->ops == &call_ops;
}

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static int jump__parse(struct ins_operands *ops)
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{
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	const char *s = strchr(ops->raw, '+');
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	ops->target.addr = strtoull(ops->raw, NULL, 16);
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	if (s++ != NULL)
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		ops->target.offset = strtoull(s, NULL, 16);
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	else
		ops->target.offset = UINT64_MAX;
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	return 0;
}

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static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
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			   struct ins_operands *ops)
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{
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	return scnprintf(bf, size, "%-6.6s %" PRIx64, ins->name, ops->target.offset);
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}

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static struct ins_ops jump_ops = {
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	.parse	   = jump__parse,
	.scnprintf = jump__scnprintf,
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};

bool ins__is_jump(const struct ins *ins)
{
	return ins->ops == &jump_ops;
}

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static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep)
{
	char *endptr, *name, *t;

	if (strstr(raw, "(%rip)") == NULL)
		return 0;

	*addrp = strtoull(comment, &endptr, 16);
	name = strchr(endptr, '<');
	if (name == NULL)
		return -1;

	name++;

	t = strchr(name, '>');
	if (t == NULL)
		return 0;

	*t = '\0';
	*namep = strdup(name);
	*t = '>';

	return 0;
}

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static int lock__parse(struct ins_operands *ops)
{
	char *name;

	ops->locked.ops = zalloc(sizeof(*ops->locked.ops));
	if (ops->locked.ops == NULL)
		return 0;

	if (disasm_line__parse(ops->raw, &name, &ops->locked.ops->raw) < 0)
		goto out_free_ops;

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	ops->locked.ins = ins__find(name);
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	free(name);

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	if (ops->locked.ins == NULL)
		goto out_free_ops;
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	if (!ops->locked.ins->ops)
		return 0;
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	if (ops->locked.ins->ops->parse &&
	    ops->locked.ins->ops->parse(ops->locked.ops) < 0)
		goto out_free_ops;
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	return 0;

out_free_ops:
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	zfree(&ops->locked.ops);
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	return 0;
}

static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
			   struct ins_operands *ops)
{
	int printed;

	if (ops->locked.ins == NULL)
		return ins__raw_scnprintf(ins, bf, size, ops);

	printed = scnprintf(bf, size, "%-6.6s ", ins->name);
	return printed + ins__scnprintf(ops->locked.ins, bf + printed,
					size - printed, ops->locked.ops);
}

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static void lock__delete(struct ins_operands *ops)
{
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	struct ins *ins = ops->locked.ins;

	if (ins && ins->ops->free)
		ins->ops->free(ops->locked.ops);
	else
		ins__delete(ops->locked.ops);

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	zfree(&ops->locked.ops);
	zfree(&ops->target.raw);
	zfree(&ops->target.name);
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}

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static struct ins_ops lock_ops = {
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	.free	   = lock__delete,
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	.parse	   = lock__parse,
	.scnprintf = lock__scnprintf,
};

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static int mov__parse(struct ins_operands *ops)
{
	char *s = strchr(ops->raw, ','), *target, *comment, prev;

	if (s == NULL)
		return -1;

	*s = '\0';
	ops->source.raw = strdup(ops->raw);
	*s = ',';
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	if (ops->source.raw == NULL)
		return -1;

	target = ++s;
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#ifdef __arm__
	comment = strchr(s, ';');
#else
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	comment = strchr(s, '#');
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#endif
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	if (comment != NULL)
		s = comment - 1;
	else
		s = strchr(s, '\0') - 1;
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	while (s > target && isspace(s[0]))
		--s;
	s++;
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	prev = *s;
	*s = '\0';

	ops->target.raw = strdup(target);
	*s = prev;

	if (ops->target.raw == NULL)
		goto out_free_source;

	if (comment == NULL)
		return 0;

	while (comment[0] != '\0' && isspace(comment[0]))
		++comment;

	comment__symbol(ops->source.raw, comment, &ops->source.addr, &ops->source.name);
	comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);

	return 0;

out_free_source:
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	zfree(&ops->source.raw);
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	return -1;
}

static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
			   struct ins_operands *ops)
{
	return scnprintf(bf, size, "%-6.6s %s,%s", ins->name,
			 ops->source.name ?: ops->source.raw,
			 ops->target.name ?: ops->target.raw);
}

static struct ins_ops mov_ops = {
	.parse	   = mov__parse,
	.scnprintf = mov__scnprintf,
};

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static int dec__parse(struct ins_operands *ops)
{
	char *target, *comment, *s, prev;

	target = s = ops->raw;

	while (s[0] != '\0' && !isspace(s[0]))
		++s;
	prev = *s;
	*s = '\0';

	ops->target.raw = strdup(target);
	*s = prev;

	if (ops->target.raw == NULL)
		return -1;

	comment = strchr(s, '#');
	if (comment == NULL)
		return 0;

	while (comment[0] != '\0' && isspace(comment[0]))
		++comment;

	comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);

	return 0;
}

static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
			   struct ins_operands *ops)
{
	return scnprintf(bf, size, "%-6.6s %s", ins->name,
			 ops->target.name ?: ops->target.raw);
}

static struct ins_ops dec_ops = {
	.parse	   = dec__parse,
	.scnprintf = dec__scnprintf,
};

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static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size,
			  struct ins_operands *ops __maybe_unused)
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{
	return scnprintf(bf, size, "%-6.6s", "nop");
}

static struct ins_ops nop_ops = {
	.scnprintf = nop__scnprintf,
};

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static struct ins instructions[] = {
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	{ .name = "add",   .ops  = &mov_ops, },
	{ .name = "addl",  .ops  = &mov_ops, },
	{ .name = "addq",  .ops  = &mov_ops, },
	{ .name = "addw",  .ops  = &mov_ops, },
	{ .name = "and",   .ops  = &mov_ops, },
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#ifdef __arm__
	{ .name = "b",     .ops  = &jump_ops, }, // might also be a call
	{ .name = "bcc",   .ops  = &jump_ops, },
	{ .name = "bcs",   .ops  = &jump_ops, },
	{ .name = "beq",   .ops  = &jump_ops, },
	{ .name = "bge",   .ops  = &jump_ops, },
	{ .name = "bgt",   .ops  = &jump_ops, },
	{ .name = "bhi",   .ops  = &jump_ops, },
	{ .name = "bl",    .ops  = &call_ops, },
	{ .name = "bls",   .ops  = &jump_ops, },
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	{ .name = "blt",   .ops  = &jump_ops, },
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	{ .name = "blx",   .ops  = &call_ops, },
	{ .name = "bne",   .ops  = &jump_ops, },
#endif
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	{ .name = "bts",   .ops  = &mov_ops, },
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	{ .name = "call",  .ops  = &call_ops, },
	{ .name = "callq", .ops  = &call_ops, },
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	{ .name = "cmp",   .ops  = &mov_ops, },
	{ .name = "cmpb",  .ops  = &mov_ops, },
	{ .name = "cmpl",  .ops  = &mov_ops, },
	{ .name = "cmpq",  .ops  = &mov_ops, },
	{ .name = "cmpw",  .ops  = &mov_ops, },
	{ .name = "cmpxch", .ops  = &mov_ops, },
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	{ .name = "dec",   .ops  = &dec_ops, },
	{ .name = "decl",  .ops  = &dec_ops, },
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	{ .name = "imul",  .ops  = &mov_ops, },
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	{ .name = "inc",   .ops  = &dec_ops, },
	{ .name = "incl",  .ops  = &dec_ops, },
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	{ .name = "ja",	   .ops  = &jump_ops, },
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	{ .name = "jae",   .ops  = &jump_ops, },
	{ .name = "jb",	   .ops  = &jump_ops, },
	{ .name = "jbe",   .ops  = &jump_ops, },
	{ .name = "jc",	   .ops  = &jump_ops, },
	{ .name = "jcxz",  .ops  = &jump_ops, },
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	{ .name = "je",	   .ops  = &jump_ops, },
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	{ .name = "jecxz", .ops  = &jump_ops, },
	{ .name = "jg",	   .ops  = &jump_ops, },
	{ .name = "jge",   .ops  = &jump_ops, },
	{ .name = "jl",    .ops  = &jump_ops, },
	{ .name = "jle",   .ops  = &jump_ops, },
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	{ .name = "jmp",   .ops  = &jump_ops, },
	{ .name = "jmpq",  .ops  = &jump_ops, },
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	{ .name = "jna",   .ops  = &jump_ops, },
	{ .name = "jnae",  .ops  = &jump_ops, },
	{ .name = "jnb",   .ops  = &jump_ops, },
	{ .name = "jnbe",  .ops  = &jump_ops, },
	{ .name = "jnc",   .ops  = &jump_ops, },
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	{ .name = "jne",   .ops  = &jump_ops, },
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	{ .name = "jng",   .ops  = &jump_ops, },
	{ .name = "jnge",  .ops  = &jump_ops, },
	{ .name = "jnl",   .ops  = &jump_ops, },
	{ .name = "jnle",  .ops  = &jump_ops, },
	{ .name = "jno",   .ops  = &jump_ops, },
	{ .name = "jnp",   .ops  = &jump_ops, },
	{ .name = "jns",   .ops  = &jump_ops, },
	{ .name = "jnz",   .ops  = &jump_ops, },
	{ .name = "jo",	   .ops  = &jump_ops, },
	{ .name = "jp",	   .ops  = &jump_ops, },
	{ .name = "jpe",   .ops  = &jump_ops, },
	{ .name = "jpo",   .ops  = &jump_ops, },
	{ .name = "jrcxz", .ops  = &jump_ops, },
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	{ .name = "js",	   .ops  = &jump_ops, },
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	{ .name = "jz",	   .ops  = &jump_ops, },
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	{ .name = "lea",   .ops  = &mov_ops, },
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	{ .name = "lock",  .ops  = &lock_ops, },
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	{ .name = "mov",   .ops  = &mov_ops, },
	{ .name = "movb",  .ops  = &mov_ops, },
	{ .name = "movdqa",.ops  = &mov_ops, },
	{ .name = "movl",  .ops  = &mov_ops, },
	{ .name = "movq",  .ops  = &mov_ops, },
	{ .name = "movslq", .ops  = &mov_ops, },
	{ .name = "movzbl", .ops  = &mov_ops, },
	{ .name = "movzwl", .ops  = &mov_ops, },
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	{ .name = "nop",   .ops  = &nop_ops, },
	{ .name = "nopl",  .ops  = &nop_ops, },
	{ .name = "nopw",  .ops  = &nop_ops, },
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	{ .name = "or",    .ops  = &mov_ops, },
	{ .name = "orl",   .ops  = &mov_ops, },
	{ .name = "test",  .ops  = &mov_ops, },
	{ .name = "testb", .ops  = &mov_ops, },
	{ .name = "testl", .ops  = &mov_ops, },
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	{ .name = "xadd",  .ops  = &mov_ops, },
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	{ .name = "xbeginl", .ops  = &jump_ops, },
	{ .name = "xbeginq", .ops  = &jump_ops, },
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};

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static int ins__key_cmp(const void *name, const void *insp)
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{
	const struct ins *ins = insp;

	return strcmp(name, ins->name);
}

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static int ins__cmp(const void *a, const void *b)
{
	const struct ins *ia = a;
	const struct ins *ib = b;

	return strcmp(ia->name, ib->name);
}

static void ins__sort(void)
{
	const int nmemb = ARRAY_SIZE(instructions);

	qsort(instructions, nmemb, sizeof(struct ins), ins__cmp);
}

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static struct ins *ins__find(const char *name)
{
	const int nmemb = ARRAY_SIZE(instructions);
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	static bool sorted;

	if (!sorted) {
		ins__sort();
		sorted = true;
	}
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	return bsearch(name, instructions, nmemb, sizeof(struct ins), ins__key_cmp);
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}

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int symbol__annotate_init(struct map *map __maybe_unused, struct symbol *sym)
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{
	struct annotation *notes = symbol__annotation(sym);
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	pthread_mutex_init(&notes->lock, NULL);
	return 0;
}
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int symbol__alloc_hist(struct symbol *sym)
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{
	struct annotation *notes = symbol__annotation(sym);
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	const size_t size = symbol__size(sym);
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	size_t sizeof_sym_hist;

	/* Check for overflow when calculating sizeof_sym_hist */
	if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(u64))
		return -1;

	sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(u64));

	/* Check for overflow in zalloc argument */
	if (sizeof_sym_hist > (SIZE_MAX - sizeof(*notes->src))
				/ symbol_conf.nr_events)
		return -1;
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	notes->src = zalloc(sizeof(*notes->src) + symbol_conf.nr_events * sizeof_sym_hist);
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	if (notes->src == NULL)
		return -1;
	notes->src->sizeof_sym_hist = sizeof_sym_hist;
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	notes->src->nr_histograms   = symbol_conf.nr_events;
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	INIT_LIST_HEAD(&notes->src->source);
	return 0;
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}

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/* The cycles histogram is lazily allocated. */
static int symbol__alloc_hist_cycles(struct symbol *sym)
{
	struct annotation *notes = symbol__annotation(sym);
	const size_t size = symbol__size(sym);

	notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist));
	if (notes->src->cycles_hist == NULL)
		return -1;
	return 0;
}

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void symbol__annotate_zero_histograms(struct symbol *sym)
{
	struct annotation *notes = symbol__annotation(sym);

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	pthread_mutex_lock(&notes->lock);
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	if (notes->src != NULL) {
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		memset(notes->src->histograms, 0,
		       notes->src->nr_histograms * notes->src->sizeof_sym_hist);
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		if (notes->src->cycles_hist)
			memset(notes->src->cycles_hist, 0,
				symbol__size(sym) * sizeof(struct cyc_hist));
	}
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	pthread_mutex_unlock(&notes->lock);
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}

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static int __symbol__account_cycles(struct annotation *notes,
				    u64 start,
				    unsigned offset, unsigned cycles,
				    unsigned have_start)
{
	struct cyc_hist *ch;

	ch = notes->src->cycles_hist;
	/*
	 * For now we can only account one basic block per
	 * final jump. But multiple could be overlapping.
	 * Always account the longest one. So when
	 * a shorter one has been already seen throw it away.
	 *
	 * We separately always account the full cycles.
	 */
	ch[offset].num_aggr++;
	ch[offset].cycles_aggr += cycles;

	if (!have_start && ch[offset].have_start)
		return 0;
	if (ch[offset].num) {
		if (have_start && (!ch[offset].have_start ||
				   ch[offset].start > start)) {
			ch[offset].have_start = 0;
			ch[offset].cycles = 0;
			ch[offset].num = 0;
			if (ch[offset].reset < 0xffff)
				ch[offset].reset++;
		} else if (have_start &&
			   ch[offset].start < start)
			return 0;
	}
	ch[offset].have_start = have_start;
	ch[offset].start = start;
	ch[offset].cycles += cycles;
	ch[offset].num++;
	return 0;
}

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static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
				      struct annotation *notes, int evidx, u64 addr)
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{
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	unsigned offset;
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	struct sym_hist *h;

	pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr));

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	if (addr < sym->start || addr >= sym->end) {
		pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n",
		       __func__, __LINE__, sym->name, sym->start, addr, sym->end);
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		return -ERANGE;
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	}
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	offset = addr - sym->start;
	h = annotation__histogram(notes, evidx);
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	h->sum++;
	h->addr[offset]++;

	pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
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		  ", evidx=%d] => %" PRIu64 "\n", sym->start, sym->name,
		  addr, addr - sym->start, evidx, h->addr[offset]);
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	return 0;
}

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static struct annotation *symbol__get_annotation(struct symbol *sym, bool cycles)
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{
	struct annotation *notes = symbol__annotation(sym);

	if (notes->src == NULL) {
		if (symbol__alloc_hist(sym) < 0)
			return NULL;
	}
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	if (!notes->src->cycles_hist && cycles) {
		if (symbol__alloc_hist_cycles(sym) < 0)
			return NULL;
	}
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	return notes;
}

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static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
				    int evidx, u64 addr)
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{
	struct annotation *notes;

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	if (sym == NULL)
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		return 0;
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	notes = symbol__get_annotation(sym, false);
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	if (notes == NULL)
		return -ENOMEM;
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	return __symbol__inc_addr_samples(sym, map, notes, evidx, addr);
}

637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667
static int symbol__account_cycles(u64 addr, u64 start,
				  struct symbol *sym, unsigned cycles)
{
	struct annotation *notes;
	unsigned offset;

	if (sym == NULL)
		return 0;
	notes = symbol__get_annotation(sym, true);
	if (notes == NULL)
		return -ENOMEM;
	if (addr < sym->start || addr >= sym->end)
		return -ERANGE;

	if (start) {
		if (start < sym->start || start >= sym->end)
			return -ERANGE;
		if (start >= addr)
			start = 0;
	}
	offset = addr - sym->start;
	return __symbol__account_cycles(notes,
					start ? start - sym->start : 0,
					offset, cycles,
					!!start);
}

int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
				    struct addr_map_symbol *start,
				    unsigned cycles)
{
668
	u64 saddr = 0;
669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686
	int err;

	if (!cycles)
		return 0;

	/*
	 * Only set start when IPC can be computed. We can only
	 * compute it when the basic block is completely in a single
	 * function.
	 * Special case the case when the jump is elsewhere, but
	 * it starts on the function start.
	 */
	if (start &&
		(start->sym == ams->sym ||
		 (ams->sym &&
		   start->addr == ams->sym->start + ams->map->start)))
		saddr = start->al_addr;
	if (saddr == 0)
687
		pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n",
688 689 690 691 692 693 694 695 696 697
			ams->addr,
			start ? start->addr : 0,
			ams->sym ? ams->sym->start + ams->map->start : 0,
			saddr);
	err = symbol__account_cycles(ams->al_addr, saddr, ams->sym, cycles);
	if (err)
		pr_debug2("account_cycles failed %d\n", err);
	return err;
}

698 699 700 701 702
int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, int evidx)
{
	return symbol__inc_addr_samples(ams->sym, ams->map, evidx, ams->al_addr);
}

703 704 705 706 707
int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 ip)
{
	return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evidx, ip);
}

708 709 710 711 712 713 714 715 716 717
static void disasm_line__init_ins(struct disasm_line *dl)
{
	dl->ins = ins__find(dl->name);

	if (dl->ins == NULL)
		return;

	if (!dl->ins->ops)
		return;

718 719
	if (dl->ins->ops->parse && dl->ins->ops->parse(&dl->ops) < 0)
		dl->ins = NULL;
720 721
}

722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754
static int disasm_line__parse(char *line, char **namep, char **rawp)
{
	char *name = line, tmp;

	while (isspace(name[0]))
		++name;

	if (name[0] == '\0')
		return -1;

	*rawp = name + 1;

	while ((*rawp)[0] != '\0' && !isspace((*rawp)[0]))
		++*rawp;

	tmp = (*rawp)[0];
	(*rawp)[0] = '\0';
	*namep = strdup(name);

	if (*namep == NULL)
		goto out_free_name;

	(*rawp)[0] = tmp;

	if ((*rawp)[0] != '\0') {
		(*rawp)++;
		while (isspace((*rawp)[0]))
			++(*rawp);
	}

	return 0;

out_free_name:
755
	zfree(namep);
756 757 758
	return -1;
}

759 760
static struct disasm_line *disasm_line__new(s64 offset, char *line,
					size_t privsize, int line_nr)
761
{
762
	struct disasm_line *dl = zalloc(sizeof(*dl) + privsize);
763

764 765 766
	if (dl != NULL) {
		dl->offset = offset;
		dl->line = strdup(line);
767
		dl->line_nr = line_nr;
768
		if (dl->line == NULL)
769
			goto out_delete;
770 771

		if (offset != -1) {
772
			if (disasm_line__parse(dl->line, &dl->name, &dl->ops.raw) < 0)
773 774
				goto out_free_line;

775
			disasm_line__init_ins(dl);
776
		}
777 778
	}

779
	return dl;
780 781

out_free_line:
782
	zfree(&dl->line);
783
out_delete:
784
	free(dl);
785
	return NULL;
786 787
}

788
void disasm_line__free(struct disasm_line *dl)
789
{
790 791
	zfree(&dl->line);
	zfree(&dl->name);
792 793 794 795
	if (dl->ins && dl->ins->ops->free)
		dl->ins->ops->free(&dl->ops);
	else
		ins__delete(&dl->ops);
796
	free(dl);
797 798
}

799 800 801 802 803 804 805 806
int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw)
{
	if (raw || !dl->ins)
		return scnprintf(bf, size, "%-6.6s %s", dl->name, dl->ops.raw);

	return ins__scnprintf(dl->ins, bf, size, &dl->ops);
}

807
static void disasm__add(struct list_head *head, struct disasm_line *line)
808 809 810 811
{
	list_add_tail(&line->node, head);
}

812
struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disasm_line *pos)
813 814 815 816 817 818 819 820
{
	list_for_each_entry_continue(pos, head, node)
		if (pos->offset >= 0)
			return pos;

	return NULL;
}

821
double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset,
822
			    s64 end, const char **path, u64 *nr_samples)
823 824 825
{
	struct source_line *src_line = notes->src->lines;
	double percent = 0.0;
826
	*nr_samples = 0;
827

828
	if (src_line) {
829
		size_t sizeof_src_line = sizeof(*src_line) +
830
				sizeof(src_line->samples) * (src_line->nr_pcnt - 1);
831

832
		while (offset < end) {
833 834 835
			src_line = (void *)notes->src->lines +
					(sizeof_src_line * offset);

836
			if (*path == NULL)
837
				*path = src_line->path;
838

839 840
			percent += src_line->samples[evidx].percent;
			*nr_samples += src_line->samples[evidx].nr;
841
			offset++;
842 843
		}
	} else {
844 845 846
		struct sym_hist *h = annotation__histogram(notes, evidx);
		unsigned int hits = 0;

847 848
		while (offset < end)
			hits += h->addr[offset++];
849

850 851
		if (h->sum) {
			*nr_samples = hits;
852
			percent = 100.0 * hits / h->sum;
853
		}
854
	}
855 856 857 858

	return percent;
}

859
static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 start,
860
		      struct perf_evsel *evsel, u64 len, int min_pcnt, int printed,
861
		      int max_lines, struct disasm_line *queue)
862 863 864 865
{
	static const char *prev_line;
	static const char *prev_color;

866
	if (dl->offset != -1) {
867
		const char *path = NULL;
868
		u64 nr_samples;
869 870
		double percent, max_percent = 0.0;
		double *ppercents = &percent;
871
		u64 *psamples = &nr_samples;
872
		int i, nr_percent = 1;
873 874
		const char *color;
		struct annotation *notes = symbol__annotation(sym);
875
		s64 offset = dl->offset;
876
		const u64 addr = start + offset;
877
		struct disasm_line *next;
878

879
		next = disasm__get_next_ip_line(&notes->src->source, dl);
880

881
		if (perf_evsel__is_group_event(evsel)) {
882 883
			nr_percent = evsel->nr_members;
			ppercents = calloc(nr_percent, sizeof(double));
884 885
			psamples = calloc(nr_percent, sizeof(u64));
			if (ppercents == NULL || psamples == NULL) {
886
				return -1;
887
			}
888 889 890 891
		}

		for (i = 0; i < nr_percent; i++) {
			percent = disasm__calc_percent(notes,
892 893 894
					notes->src->lines ? i : evsel->idx + i,
					offset,
					next ? next->offset : (s64) len,
895
					&path, &nr_samples);
896 897

			ppercents[i] = percent;
898
			psamples[i] = nr_samples;
899 900 901 902 903
			if (percent > max_percent)
				max_percent = percent;
		}

		if (max_percent < min_pcnt)
904 905
			return -1;

906
		if (max_lines && printed >= max_lines)
907
			return 1;
908

909 910
		if (queue != NULL) {
			list_for_each_entry_from(queue, &notes->src->source, node) {
911
				if (queue == dl)
912
					break;
913
				disasm_line__print(queue, sym, start, evsel, len,
914 915 916 917
						    0, 0, 1, NULL);
			}
		}

918
		color = get_percent_color(max_percent);
919 920 921 922 923 924 925 926 927 928 929 930 931 932 933

		/*
		 * Also color the filename and line if needed, with
		 * the same color than the percentage. Don't print it
		 * twice for close colored addr with the same filename:line
		 */
		if (path) {
			if (!prev_line || strcmp(prev_line, path)
				       || color != prev_color) {
				color_fprintf(stdout, color, " %s", path);
				prev_line = path;
				prev_color = color;
			}
		}

934 935
		for (i = 0; i < nr_percent; i++) {
			percent = ppercents[i];
936
			nr_samples = psamples[i];
937
			color = get_percent_color(percent);
938 939 940 941 942 943

			if (symbol_conf.show_total_period)
				color_fprintf(stdout, color, " %7" PRIu64,
					      nr_samples);
			else
				color_fprintf(stdout, color, " %7.2f", percent);
944 945
		}

946
		printf(" :	");
947
		color_fprintf(stdout, PERF_COLOR_MAGENTA, "  %" PRIx64 ":", addr);
948
		color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", dl->line);
949 950 951 952

		if (ppercents != &percent)
			free(ppercents);

953 954 955
		if (psamples != &nr_samples)
			free(psamples);

956
	} else if (max_lines && printed >= max_lines)
957 958
		return 1;
	else {
959 960
		int width = 8;

961 962 963
		if (queue)
			return -1;

964
		if (perf_evsel__is_group_event(evsel))
965 966
			width *= evsel->nr_members;

967
		if (!*dl->line)
968
			printf(" %*s:\n", width, " ");
969
		else
970
			printf(" %*s:	%s\n", width, " ", dl->line);
971
	}
972 973

	return 0;
974 975
}

976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995
/*
 * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
 * which looks like following
 *
 *  0000000000415500 <_init>:
 *    415500:       sub    $0x8,%rsp
 *    415504:       mov    0x2f5ad5(%rip),%rax        # 70afe0 <_DYNAMIC+0x2f8>
 *    41550b:       test   %rax,%rax
 *    41550e:       je     415515 <_init+0x15>
 *    415510:       callq  416e70 <__gmon_start__@plt>
 *    415515:       add    $0x8,%rsp
 *    415519:       retq
 *
 * it will be parsed and saved into struct disasm_line as
 *  <offset>       <name>  <ops.raw>
 *
 * The offset will be a relative offset from the start of the symbol and -1
 * means that it's not a disassembly line so should be treated differently.
 * The ops.raw part will be parsed further according to type of the instruction.
 */
996
static int symbol__parse_objdump_line(struct symbol *sym, struct map *map,
997 998
				      FILE *file, size_t privsize,
				      int *line_nr)
999
{
1000
	struct annotation *notes = symbol__annotation(sym);
1001
	struct disasm_line *dl;
1002
	char *line = NULL, *parsed_line, *tmp, *tmp2, *c;
1003 1004
	size_t line_len;
	s64 line_ip, offset = -1;
1005
	regmatch_t match[2];
1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020

	if (getline(&line, &line_len, file) < 0)
		return -1;

	if (!line)
		return -1;

	while (line_len != 0 && isspace(line[line_len - 1]))
		line[--line_len] = '\0';

	c = strchr(line, '\n');
	if (c)
		*c = 0;

	line_ip = -1;
N
Namhyung Kim 已提交
1021
	parsed_line = line;
1022

1023 1024 1025 1026 1027 1028
	/* /filename:linenr ? Save line number and ignore. */
	if (regexec(&file_lineno, line, 2, match, 0) == 0) {
		*line_nr = atoi(line + match[1].rm_so);
		return 0;
	}

1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052
	/*
	 * Strip leading spaces:
	 */
	tmp = line;
	while (*tmp) {
		if (*tmp != ' ')
			break;
		tmp++;
	}

	if (*tmp) {
		/*
		 * Parse hexa addresses followed by ':'
		 */
		line_ip = strtoull(tmp, &tmp2, 16);
		if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0')
			line_ip = -1;
	}

	if (line_ip != -1) {
		u64 start = map__rip_2objdump(map, sym->start),
		    end = map__rip_2objdump(map, sym->end);

		offset = line_ip - start;
1053
		if ((u64)line_ip < start || (u64)line_ip >= end)
1054
			offset = -1;
1055 1056
		else
			parsed_line = tmp2 + 1;
N
Namhyung Kim 已提交
1057
	}
1058

1059
	dl = disasm_line__new(offset, parsed_line, privsize, *line_nr);
1060
	free(line);
1061
	(*line_nr)++;
1062

1063
	if (dl == NULL)
1064
		return -1;
1065

1066 1067 1068 1069
	if (dl->ops.target.offset == UINT64_MAX)
		dl->ops.target.offset = dl->ops.target.addr -
					map__rip_2objdump(map, sym->start);

1070
	/* kcore has no symbols, so add the call target name */
1071
	if (dl->ins && ins__is_call(dl->ins) && !dl->ops.target.name) {
1072 1073 1074 1075 1076 1077 1078 1079
		struct addr_map_symbol target = {
			.map = map,
			.addr = dl->ops.target.addr,
		};

		if (!map_groups__find_ams(&target, NULL) &&
		    target.sym->start == target.al_addr)
			dl->ops.target.name = strdup(target.sym->name);
1080 1081
	}

1082
	disasm__add(&notes->src->source, dl);
1083 1084 1085 1086

	return 0;
}

1087 1088 1089 1090 1091
static __attribute__((constructor)) void symbol__init_regexpr(void)
{
	regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED);
}

1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115
static void delete_last_nop(struct symbol *sym)
{
	struct annotation *notes = symbol__annotation(sym);
	struct list_head *list = &notes->src->source;
	struct disasm_line *dl;

	while (!list_empty(list)) {
		dl = list_entry(list->prev, struct disasm_line, node);

		if (dl->ins && dl->ins->ops) {
			if (dl->ins->ops != &nop_ops)
				return;
		} else {
			if (!strstr(dl->line, " nop ") &&
			    !strstr(dl->line, " nopl ") &&
			    !strstr(dl->line, " nopw "))
				return;
		}

		list_del(&dl->node);
		disasm_line__free(dl);
	}
}

1116
int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize)
1117 1118 1119 1120 1121 1122 1123 1124
{
	struct dso *dso = map->dso;
	char *filename = dso__build_id_filename(dso, NULL, 0);
	bool free_filename = true;
	char command[PATH_MAX * 2];
	FILE *file;
	int err = 0;
	char symfs_filename[PATH_MAX];
1125 1126
	struct kcore_extract kce;
	bool delete_extract = false;
1127
	int lineno = 0;
1128
	int nline;
1129

1130 1131
	if (filename)
		symbol__join_symfs(symfs_filename, filename);
1132 1133 1134 1135 1136 1137 1138 1139

	if (filename == NULL) {
		if (dso->has_build_id) {
			pr_err("Can't annotate %s: not enough memory\n",
			       sym->name);
			return -ENOMEM;
		}
		goto fallback;
1140 1141
	} else if (dso__is_kcore(dso)) {
		goto fallback;
1142
	} else if (readlink(symfs_filename, command, sizeof(command)) < 0 ||
1143
		   strstr(command, DSO__NAME_KALLSYMS) ||
1144 1145 1146 1147 1148 1149 1150 1151
		   access(symfs_filename, R_OK)) {
		free(filename);
fallback:
		/*
		 * If we don't have build-ids or the build-id file isn't in the
		 * cache, or is just a kallsyms file, well, lets hope that this
		 * DSO is the same as when 'perf record' ran.
		 */
1152
		filename = (char *)dso->long_name;
1153
		symbol__join_symfs(symfs_filename, filename);
1154 1155 1156
		free_filename = false;
	}

1157 1158
	if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
	    !dso__is_kcore(dso)) {
1159
		char bf[SBUILD_ID_SIZE + 15] = " with build id ";
1160 1161
		char *build_id_msg = NULL;

1162 1163
		if (dso->annotate_warned)
			goto out_free_filename;
1164 1165 1166 1167 1168 1169

		if (dso->has_build_id) {
			build_id__sprintf(dso->build_id,
					  sizeof(dso->build_id), bf + 15);
			build_id_msg = bf;
		}
1170 1171
		err = -ENOENT;
		dso->annotate_warned = 1;
1172 1173
		pr_err("Can't annotate %s:\n\n"
		       "No vmlinux file%s\nwas found in the path.\n\n"
1174
		       "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n"
1175
		       "Please use:\n\n"
1176
		       "  perf buildid-cache -vu vmlinux\n\n"
1177
		       "or:\n\n"
1178
		       "  --vmlinux vmlinux\n",
1179
		       sym->name, build_id_msg ?: "");
1180 1181 1182 1183 1184 1185 1186 1187 1188 1189
		goto out_free_filename;
	}

	pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
		 filename, sym->name, map->unmap_ip(map, sym->start),
		 map->unmap_ip(map, sym->end));

	pr_debug("annotating [%p] %30s : [%p] %30s\n",
		 dso, dso->long_name, sym, sym->name);

1190 1191 1192 1193
	if (dso__is_kcore(dso)) {
		kce.kcore_filename = symfs_filename;
		kce.addr = map__rip_2objdump(map, sym->start);
		kce.offs = sym->start;
1194
		kce.len = sym->end - sym->start;
1195 1196 1197 1198 1199 1200 1201 1202 1203 1204
		if (!kcore_extract__create(&kce)) {
			delete_extract = true;
			strlcpy(symfs_filename, kce.extract_filename,
				sizeof(symfs_filename));
			if (free_filename) {
				free(filename);
				free_filename = false;
			}
			filename = symfs_filename;
		}
1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223
	} else if (dso__needs_decompress(dso)) {
		char tmp[PATH_MAX];
		struct kmod_path m;
		int fd;
		bool ret;

		if (kmod_path__parse_ext(&m, symfs_filename))
			goto out_free_filename;

		snprintf(tmp, PATH_MAX, "/tmp/perf-kmod-XXXXXX");

		fd = mkstemp(tmp);
		if (fd < 0) {
			free(m.ext);
			goto out_free_filename;
		}

		ret = decompress_to_file(m.ext, symfs_filename, fd);

1224 1225 1226
		if (ret)
			pr_err("Cannot decompress %s %s\n", m.ext, symfs_filename);

1227 1228 1229 1230 1231 1232 1233
		free(m.ext);
		close(fd);

		if (!ret)
			goto out_free_filename;

		strcpy(symfs_filename, tmp);
1234 1235
	}

1236
	snprintf(command, sizeof(command),
1237
		 "%s %s%s --start-address=0x%016" PRIx64
1238
		 " --stop-address=0x%016" PRIx64
1239
		 " -l -d %s %s -C %s 2>/dev/null|grep -v %s|expand",
1240
		 objdump_path ? objdump_path : "objdump",
1241 1242
		 disassembler_style ? "-M " : "",
		 disassembler_style ? disassembler_style : "",
1243
		 map__rip_2objdump(map, sym->start),
1244
		 map__rip_2objdump(map, sym->end),
1245 1246
		 symbol_conf.annotate_asm_raw ? "" : "--no-show-raw",
		 symbol_conf.annotate_src ? "-S" : "",
1247 1248 1249 1250 1251
		 symfs_filename, filename);

	pr_debug("Executing: %s\n", command);

	file = popen(command, "r");
1252 1253 1254 1255 1256 1257
	if (!file) {
		pr_err("Failure running %s\n", command);
		/*
		 * If we were using debug info should retry with
		 * original binary.
		 */
1258
		goto out_remove_tmp;
1259
	}
1260

1261 1262
	nline = 0;
	while (!feof(file)) {
1263 1264
		if (symbol__parse_objdump_line(sym, map, file, privsize,
			    &lineno) < 0)
1265
			break;
1266 1267 1268 1269 1270
		nline++;
	}

	if (nline == 0)
		pr_err("No output from %s\n", command);
1271

1272 1273 1274 1275 1276 1277 1278
	/*
	 * kallsyms does not have symbol sizes so there may a nop at the end.
	 * Remove it.
	 */
	if (dso__is_kcore(dso))
		delete_last_nop(sym);

1279
	pclose(file);
1280 1281 1282 1283

out_remove_tmp:
	if (dso__needs_decompress(dso))
		unlink(symfs_filename);
1284
out_free_filename:
1285 1286
	if (delete_extract)
		kcore_extract__delete(&kce);
1287 1288 1289 1290 1291 1292 1293 1294 1295 1296
	if (free_filename)
		free(filename);
	return err;
}

static void insert_source_line(struct rb_root *root, struct source_line *src_line)
{
	struct source_line *iter;
	struct rb_node **p = &root->rb_node;
	struct rb_node *parent = NULL;
1297
	int i, ret;
1298 1299 1300 1301 1302

	while (*p != NULL) {
		parent = *p;
		iter = rb_entry(parent, struct source_line, node);

1303 1304
		ret = strcmp(iter->path, src_line->path);
		if (ret == 0) {
1305
			for (i = 0; i < src_line->nr_pcnt; i++)
1306
				iter->samples[i].percent_sum += src_line->samples[i].percent;
1307 1308 1309 1310 1311 1312 1313 1314 1315
			return;
		}

		if (ret < 0)
			p = &(*p)->rb_left;
		else
			p = &(*p)->rb_right;
	}

1316
	for (i = 0; i < src_line->nr_pcnt; i++)
1317
		src_line->samples[i].percent_sum = src_line->samples[i].percent;
1318 1319 1320 1321 1322

	rb_link_node(&src_line->node, parent, p);
	rb_insert_color(&src_line->node, root);
}

1323 1324 1325 1326 1327
static int cmp_source_line(struct source_line *a, struct source_line *b)
{
	int i;

	for (i = 0; i < a->nr_pcnt; i++) {
1328
		if (a->samples[i].percent_sum == b->samples[i].percent_sum)
1329
			continue;
1330
		return a->samples[i].percent_sum > b->samples[i].percent_sum;
1331 1332 1333 1334 1335
	}

	return 0;
}

1336 1337 1338 1339 1340 1341 1342 1343 1344 1345
static void __resort_source_line(struct rb_root *root, struct source_line *src_line)
{
	struct source_line *iter;
	struct rb_node **p = &root->rb_node;
	struct rb_node *parent = NULL;

	while (*p != NULL) {
		parent = *p;
		iter = rb_entry(parent, struct source_line, node);

1346
		if (cmp_source_line(src_line, iter))
1347 1348 1349 1350 1351 1352 1353 1354 1355
			p = &(*p)->rb_left;
		else
			p = &(*p)->rb_right;
	}

	rb_link_node(&src_line->node, parent, p);
	rb_insert_color(&src_line->node, root);
}

1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373
static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
{
	struct source_line *src_line;
	struct rb_node *node;

	node = rb_first(src_root);
	while (node) {
		struct rb_node *next;

		src_line = rb_entry(node, struct source_line, node);
		next = rb_next(node);
		rb_erase(node, src_root);

		__resort_source_line(dest_root, src_line);
		node = next;
	}
}

1374 1375 1376
static void symbol__free_source_line(struct symbol *sym, int len)
{
	struct annotation *notes = symbol__annotation(sym);
1377
	struct source_line *src_line = notes->src->lines;
1378
	size_t sizeof_src_line;
1379 1380
	int i;

1381
	sizeof_src_line = sizeof(*src_line) +
1382
			  (sizeof(src_line->samples) * (src_line->nr_pcnt - 1));
1383

1384
	for (i = 0; i < len; i++) {
1385
		free_srcline(src_line->path);
1386 1387 1388
		src_line = (void *)src_line + sizeof_src_line;
	}

1389
	zfree(&notes->src->lines);
1390 1391 1392 1393
}

/* Get the filename:line for the colored entries */
static int symbol__get_source_line(struct symbol *sym, struct map *map,
1394
				   struct perf_evsel *evsel,
1395
				   struct rb_root *root, int len)
1396 1397
{
	u64 start;
1398 1399
	int i, k;
	int evidx = evsel->idx;
1400 1401
	struct source_line *src_line;
	struct annotation *notes = symbol__annotation(sym);
1402
	struct sym_hist *h = annotation__histogram(notes, evidx);
1403
	struct rb_root tmp_root = RB_ROOT;
1404 1405 1406 1407 1408 1409 1410 1411 1412 1413
	int nr_pcnt = 1;
	u64 h_sum = h->sum;
	size_t sizeof_src_line = sizeof(struct source_line);

	if (perf_evsel__is_group_event(evsel)) {
		for (i = 1; i < evsel->nr_members; i++) {
			h = annotation__histogram(notes, evidx + i);
			h_sum += h->sum;
		}
		nr_pcnt = evsel->nr_members;
1414
		sizeof_src_line += (nr_pcnt - 1) * sizeof(src_line->samples);
1415
	}
1416

1417
	if (!h_sum)
1418 1419
		return 0;

1420
	src_line = notes->src->lines = calloc(len, sizeof_src_line);
1421
	if (!notes->src->lines)
1422 1423
		return -1;

1424
	start = map__rip_2objdump(map, sym->start);
1425 1426 1427

	for (i = 0; i < len; i++) {
		u64 offset;
1428
		double percent_max = 0.0;
1429

1430 1431 1432 1433
		src_line->nr_pcnt = nr_pcnt;

		for (k = 0; k < nr_pcnt; k++) {
			h = annotation__histogram(notes, evidx + k);
1434
			src_line->samples[k].percent = 100.0 * h->addr[i] / h->sum;
1435

1436 1437
			if (src_line->samples[k].percent > percent_max)
				percent_max = src_line->samples[k].percent;
1438 1439 1440 1441
		}

		if (percent_max <= 0.5)
			goto next;
1442 1443

		offset = start + i;
1444
		src_line->path = get_srcline(map->dso, offset, NULL, false);
1445
		insert_source_line(&tmp_root, src_line);
1446

1447 1448
	next:
		src_line = (void *)src_line + sizeof_src_line;
1449 1450
	}

1451
	resort_source_line(root, &tmp_root);
1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469
	return 0;
}

static void print_summary(struct rb_root *root, const char *filename)
{
	struct source_line *src_line;
	struct rb_node *node;

	printf("\nSorted summary for file %s\n", filename);
	printf("----------------------------------------------\n\n");

	if (RB_EMPTY_ROOT(root)) {
		printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
		return;
	}

	node = rb_first(root);
	while (node) {
1470
		double percent, percent_max = 0.0;
1471 1472
		const char *color;
		char *path;
1473
		int i;
1474 1475

		src_line = rb_entry(node, struct source_line, node);
1476
		for (i = 0; i < src_line->nr_pcnt; i++) {
1477
			percent = src_line->samples[i].percent_sum;
1478 1479 1480 1481 1482 1483 1484
			color = get_percent_color(percent);
			color_fprintf(stdout, color, " %7.2f", percent);

			if (percent > percent_max)
				percent_max = percent;
		}

1485
		path = src_line->path;
1486
		color = get_percent_color(percent_max);
1487
		color_fprintf(stdout, color, " %s\n", path);
1488 1489 1490 1491 1492

		node = rb_next(node);
	}
}

1493
static void symbol__annotate_hits(struct symbol *sym, struct perf_evsel *evsel)
1494 1495
{
	struct annotation *notes = symbol__annotation(sym);
1496
	struct sym_hist *h = annotation__histogram(notes, evsel->idx);
1497
	u64 len = symbol__size(sym), offset;
1498 1499 1500 1501 1502 1503 1504 1505

	for (offset = 0; offset < len; ++offset)
		if (h->addr[offset] != 0)
			printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
			       sym->start + offset, h->addr[offset]);
	printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum);
}

1506 1507 1508
int symbol__annotate_printf(struct symbol *sym, struct map *map,
			    struct perf_evsel *evsel, bool full_paths,
			    int min_pcnt, int max_lines, int context)
1509 1510
{
	struct dso *dso = map->dso;
1511 1512
	char *filename;
	const char *d_filename;
1513
	const char *evsel_name = perf_evsel__name(evsel);
1514
	struct annotation *notes = symbol__annotation(sym);
1515
	struct disasm_line *pos, *queue = NULL;
1516
	u64 start = map__rip_2objdump(map, sym->start);
1517
	int printed = 2, queue_len = 0;
1518
	int more = 0;
1519
	u64 len;
1520
	int width = 8;
1521
	int namelen, evsel_name_len, graph_dotted_len;
1522

1523 1524 1525 1526
	filename = strdup(dso->long_name);
	if (!filename)
		return -ENOMEM;

1527 1528 1529 1530 1531
	if (full_paths)
		d_filename = filename;
	else
		d_filename = basename(filename);

1532
	len = symbol__size(sym);
1533
	namelen = strlen(d_filename);
1534
	evsel_name_len = strlen(evsel_name);
1535

1536
	if (perf_evsel__is_group_event(evsel))
1537
		width *= evsel->nr_members;
1538

1539 1540 1541 1542 1543 1544
	printf(" %-*.*s|	Source code & Disassembly of %s for %s\n",
	       width, width, "Percent", d_filename, evsel_name);

	graph_dotted_len = width + namelen + evsel_name_len;
	printf("-%-*.*s-----------------------------------------\n",
	       graph_dotted_len, graph_dotted_len, graph_dotted_line);
1545 1546

	if (verbose)
1547
		symbol__annotate_hits(sym, evsel);
1548

1549
	list_for_each_entry(pos, &notes->src->source, node) {
1550 1551 1552 1553 1554
		if (context && queue == NULL) {
			queue = pos;
			queue_len = 0;
		}

1555
		switch (disasm_line__print(pos, sym, start, evsel, len,
1556 1557
					    min_pcnt, printed, max_lines,
					    queue)) {
1558 1559
		case 0:
			++printed;
1560 1561 1562 1563 1564
			if (context) {
				printed += queue_len;
				queue = NULL;
				queue_len = 0;
			}
1565 1566 1567 1568
			break;
		case 1:
			/* filtered by max_lines */
			++more;
1569
			break;
1570 1571
		case -1:
		default:
1572 1573 1574 1575 1576 1577 1578 1579 1580 1581
			/*
			 * Filtered by min_pcnt or non IP lines when
			 * context != 0
			 */
			if (!context)
				break;
			if (queue_len == context)
				queue = list_entry(queue->node.next, typeof(*queue), node);
			else
				++queue_len;
1582 1583 1584 1585
			break;
		}
	}

1586 1587
	free(filename);

1588 1589
	return more;
}
1590

1591 1592 1593 1594 1595
void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
{
	struct annotation *notes = symbol__annotation(sym);
	struct sym_hist *h = annotation__histogram(notes, evidx);

1596
	memset(h, 0, notes->src->sizeof_sym_hist);
1597 1598
}

1599
void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
1600 1601 1602
{
	struct annotation *notes = symbol__annotation(sym);
	struct sym_hist *h = annotation__histogram(notes, evidx);
1603
	int len = symbol__size(sym), offset;
1604 1605

	h->sum = 0;
1606 1607 1608
	for (offset = 0; offset < len; ++offset) {
		h->addr[offset] = h->addr[offset] * 7 / 8;
		h->sum += h->addr[offset];
1609 1610 1611
	}
}

1612
void disasm__purge(struct list_head *head)
1613
{
1614
	struct disasm_line *pos, *n;
1615 1616 1617

	list_for_each_entry_safe(pos, n, head, node) {
		list_del(&pos->node);
1618
		disasm_line__free(pos);
1619 1620 1621
	}
}

1622 1623 1624 1625 1626 1627 1628 1629 1630
static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
{
	size_t printed;

	if (dl->offset == -1)
		return fprintf(fp, "%s\n", dl->line);

	printed = fprintf(fp, "%#" PRIx64 " %s", dl->offset, dl->name);

1631
	if (dl->ops.raw[0] != '\0') {
1632
		printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
1633
				   dl->ops.raw);
1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649
	}

	return printed + fprintf(fp, "\n");
}

size_t disasm__fprintf(struct list_head *head, FILE *fp)
{
	struct disasm_line *pos;
	size_t printed = 0;

	list_for_each_entry(pos, head, node)
		printed += disasm_line__fprintf(pos, fp);

	return printed;
}

1650 1651 1652
int symbol__tty_annotate(struct symbol *sym, struct map *map,
			 struct perf_evsel *evsel, bool print_lines,
			 bool full_paths, int min_pcnt, int max_lines)
1653 1654 1655 1656 1657
{
	struct dso *dso = map->dso;
	struct rb_root source_line = RB_ROOT;
	u64 len;

1658
	if (symbol__annotate(sym, map, 0) < 0)
1659 1660
		return -1;

1661
	len = symbol__size(sym);
1662 1663

	if (print_lines) {
1664
		srcline_full_filename = full_paths;
1665 1666
		symbol__get_source_line(sym, map, evsel, &source_line, len);
		print_summary(&source_line, dso->long_name);
1667 1668
	}

1669
	symbol__annotate_printf(sym, map, evsel, full_paths,
1670
				min_pcnt, max_lines, 0);
1671 1672 1673
	if (print_lines)
		symbol__free_source_line(sym, len);

1674
	disasm__purge(&symbol__annotation(sym)->src->source);
1675

1676 1677
	return 0;
}
1678 1679 1680 1681 1682

int hist_entry__annotate(struct hist_entry *he, size_t privsize)
{
	return symbol__annotate(he->ms.sym, he->ms.map, privsize);
}
1683 1684 1685

bool ui__has_annotation(void)
{
1686
	return use_browser == 1 && perf_hpp_list.sym;
1687
}