2009-05-28 17:55:04 +00:00
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#include "util.h"
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#include "../perf.h"
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2009-06-01 20:50:19 +00:00
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#include "string.h"
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2009-05-28 17:55:04 +00:00
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#include "symbol.h"
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#include <libelf.h>
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#include <gelf.h>
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#include <elf.h>
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perf_counter tools: Add 'perf annotate' feature
Add new perf sub-command to display annotated source code:
$ perf annotate decode_tree_entry
------------------------------------------------
Percent | Source code & Disassembly of /home/mingo/git/git
------------------------------------------------
:
: /home/mingo/git/git: file format elf64-x86-64
:
:
: Disassembly of section .text:
:
: 00000000004a0da0 <decode_tree_entry>:
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
3.82 : 4a0da0: 41 54 push %r12
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.17 : 4a0da2: 48 83 fa 17 cmp $0x17,%rdx
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
0.00 : 4a0da6: 49 89 fc mov %rdi,%r12
0.00 : 4a0da9: 55 push %rbp
3.37 : 4a0daa: 53 push %rbx
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.08 : 4a0dab: 76 73 jbe 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dad: 80 7c 16 eb 00 cmpb $0x0,-0x15(%rsi,%rdx,1)
3.48 : 4a0db2: 75 6c jne 4a0e20 <decode_tree_entry+0x80>
: static const char *get_mode(const char *str, unsigned int *modep)
: {
: unsigned char c;
: unsigned int mode = 0;
:
: if (*str == ' ')
1.94 : 4a0db4: 0f b6 06 movzbl (%rsi),%eax
0.39 : 4a0db7: 3c 20 cmp $0x20,%al
0.00 : 4a0db9: 74 65 je 4a0e20 <decode_tree_entry+0x80>
: return NULL;
:
: while ((c = *str++) != ' ') {
0.06 : 4a0dbb: 89 c2 mov %eax,%edx
: if (c < '0' || c > '7')
1.99 : 4a0dbd: 31 ed xor %ebp,%ebp
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
1.74 : 4a0dbf: 48 8d 5e 01 lea 0x1(%rsi),%rbx
: if (c < '0' || c > '7')
0.00 : 4a0dc3: 8d 42 d0 lea -0x30(%rdx),%eax
0.17 : 4a0dc6: 3c 07 cmp $0x7,%al
0.00 : 4a0dc8: 76 0d jbe 4a0dd7 <decode_tree_entry+0x37>
0.00 : 4a0dca: eb 54 jmp 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dcc: 0f 1f 40 00 nopl 0x0(%rax)
16.57 : 4a0dd0: 8d 42 d0 lea -0x30(%rdx),%eax
0.14 : 4a0dd3: 3c 07 cmp $0x7,%al
0.00 : 4a0dd5: 77 49 ja 4a0e20 <decode_tree_entry+0x80>
: return NULL;
: mode = (mode << 3) + (c - '0');
3.12 : 4a0dd7: 0f b6 c2 movzbl %dl,%eax
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
0.00 : 4a0dda: 0f b6 13 movzbl (%rbx),%edx
16.74 : 4a0ddd: 48 83 c3 01 add $0x1,%rbx
: if (c < '0' || c > '7')
: return NULL;
: mode = (mode << 3) + (c - '0');
The first column is the percentage of samples that arrived on that
particular line - relative to the total cost of the function.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 13:48:52 +00:00
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const char *sym_hist_filter;
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2009-05-28 17:55:04 +00:00
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static struct symbol *symbol__new(uint64_t start, uint64_t len,
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perf_counter tools: Add 'perf annotate' feature
Add new perf sub-command to display annotated source code:
$ perf annotate decode_tree_entry
------------------------------------------------
Percent | Source code & Disassembly of /home/mingo/git/git
------------------------------------------------
:
: /home/mingo/git/git: file format elf64-x86-64
:
:
: Disassembly of section .text:
:
: 00000000004a0da0 <decode_tree_entry>:
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
3.82 : 4a0da0: 41 54 push %r12
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.17 : 4a0da2: 48 83 fa 17 cmp $0x17,%rdx
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
0.00 : 4a0da6: 49 89 fc mov %rdi,%r12
0.00 : 4a0da9: 55 push %rbp
3.37 : 4a0daa: 53 push %rbx
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.08 : 4a0dab: 76 73 jbe 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dad: 80 7c 16 eb 00 cmpb $0x0,-0x15(%rsi,%rdx,1)
3.48 : 4a0db2: 75 6c jne 4a0e20 <decode_tree_entry+0x80>
: static const char *get_mode(const char *str, unsigned int *modep)
: {
: unsigned char c;
: unsigned int mode = 0;
:
: if (*str == ' ')
1.94 : 4a0db4: 0f b6 06 movzbl (%rsi),%eax
0.39 : 4a0db7: 3c 20 cmp $0x20,%al
0.00 : 4a0db9: 74 65 je 4a0e20 <decode_tree_entry+0x80>
: return NULL;
:
: while ((c = *str++) != ' ') {
0.06 : 4a0dbb: 89 c2 mov %eax,%edx
: if (c < '0' || c > '7')
1.99 : 4a0dbd: 31 ed xor %ebp,%ebp
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
1.74 : 4a0dbf: 48 8d 5e 01 lea 0x1(%rsi),%rbx
: if (c < '0' || c > '7')
0.00 : 4a0dc3: 8d 42 d0 lea -0x30(%rdx),%eax
0.17 : 4a0dc6: 3c 07 cmp $0x7,%al
0.00 : 4a0dc8: 76 0d jbe 4a0dd7 <decode_tree_entry+0x37>
0.00 : 4a0dca: eb 54 jmp 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dcc: 0f 1f 40 00 nopl 0x0(%rax)
16.57 : 4a0dd0: 8d 42 d0 lea -0x30(%rdx),%eax
0.14 : 4a0dd3: 3c 07 cmp $0x7,%al
0.00 : 4a0dd5: 77 49 ja 4a0e20 <decode_tree_entry+0x80>
: return NULL;
: mode = (mode << 3) + (c - '0');
3.12 : 4a0dd7: 0f b6 c2 movzbl %dl,%eax
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
0.00 : 4a0dda: 0f b6 13 movzbl (%rbx),%edx
16.74 : 4a0ddd: 48 83 c3 01 add $0x1,%rbx
: if (c < '0' || c > '7')
: return NULL;
: mode = (mode << 3) + (c - '0');
The first column is the percentage of samples that arrived on that
particular line - relative to the total cost of the function.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 13:48:52 +00:00
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const char *name, unsigned int priv_size,
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uint64_t obj_start, int verbose)
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2009-05-28 17:55:04 +00:00
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{
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2009-05-28 17:55:13 +00:00
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size_t namelen = strlen(name) + 1;
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perf_counter tools: Add 'perf annotate' feature
Add new perf sub-command to display annotated source code:
$ perf annotate decode_tree_entry
------------------------------------------------
Percent | Source code & Disassembly of /home/mingo/git/git
------------------------------------------------
:
: /home/mingo/git/git: file format elf64-x86-64
:
:
: Disassembly of section .text:
:
: 00000000004a0da0 <decode_tree_entry>:
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
3.82 : 4a0da0: 41 54 push %r12
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.17 : 4a0da2: 48 83 fa 17 cmp $0x17,%rdx
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
0.00 : 4a0da6: 49 89 fc mov %rdi,%r12
0.00 : 4a0da9: 55 push %rbp
3.37 : 4a0daa: 53 push %rbx
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.08 : 4a0dab: 76 73 jbe 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dad: 80 7c 16 eb 00 cmpb $0x0,-0x15(%rsi,%rdx,1)
3.48 : 4a0db2: 75 6c jne 4a0e20 <decode_tree_entry+0x80>
: static const char *get_mode(const char *str, unsigned int *modep)
: {
: unsigned char c;
: unsigned int mode = 0;
:
: if (*str == ' ')
1.94 : 4a0db4: 0f b6 06 movzbl (%rsi),%eax
0.39 : 4a0db7: 3c 20 cmp $0x20,%al
0.00 : 4a0db9: 74 65 je 4a0e20 <decode_tree_entry+0x80>
: return NULL;
:
: while ((c = *str++) != ' ') {
0.06 : 4a0dbb: 89 c2 mov %eax,%edx
: if (c < '0' || c > '7')
1.99 : 4a0dbd: 31 ed xor %ebp,%ebp
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
1.74 : 4a0dbf: 48 8d 5e 01 lea 0x1(%rsi),%rbx
: if (c < '0' || c > '7')
0.00 : 4a0dc3: 8d 42 d0 lea -0x30(%rdx),%eax
0.17 : 4a0dc6: 3c 07 cmp $0x7,%al
0.00 : 4a0dc8: 76 0d jbe 4a0dd7 <decode_tree_entry+0x37>
0.00 : 4a0dca: eb 54 jmp 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dcc: 0f 1f 40 00 nopl 0x0(%rax)
16.57 : 4a0dd0: 8d 42 d0 lea -0x30(%rdx),%eax
0.14 : 4a0dd3: 3c 07 cmp $0x7,%al
0.00 : 4a0dd5: 77 49 ja 4a0e20 <decode_tree_entry+0x80>
: return NULL;
: mode = (mode << 3) + (c - '0');
3.12 : 4a0dd7: 0f b6 c2 movzbl %dl,%eax
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
0.00 : 4a0dda: 0f b6 13 movzbl (%rbx),%edx
16.74 : 4a0ddd: 48 83 c3 01 add $0x1,%rbx
: if (c < '0' || c > '7')
: return NULL;
: mode = (mode << 3) + (c - '0');
The first column is the percentage of samples that arrived on that
particular line - relative to the total cost of the function.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 13:48:52 +00:00
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struct symbol *self = calloc(1, priv_size + sizeof(*self) + namelen);
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2009-05-28 17:55:04 +00:00
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perf_counter tools: Add 'perf annotate' feature
Add new perf sub-command to display annotated source code:
$ perf annotate decode_tree_entry
------------------------------------------------
Percent | Source code & Disassembly of /home/mingo/git/git
------------------------------------------------
:
: /home/mingo/git/git: file format elf64-x86-64
:
:
: Disassembly of section .text:
:
: 00000000004a0da0 <decode_tree_entry>:
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
3.82 : 4a0da0: 41 54 push %r12
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.17 : 4a0da2: 48 83 fa 17 cmp $0x17,%rdx
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
0.00 : 4a0da6: 49 89 fc mov %rdi,%r12
0.00 : 4a0da9: 55 push %rbp
3.37 : 4a0daa: 53 push %rbx
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.08 : 4a0dab: 76 73 jbe 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dad: 80 7c 16 eb 00 cmpb $0x0,-0x15(%rsi,%rdx,1)
3.48 : 4a0db2: 75 6c jne 4a0e20 <decode_tree_entry+0x80>
: static const char *get_mode(const char *str, unsigned int *modep)
: {
: unsigned char c;
: unsigned int mode = 0;
:
: if (*str == ' ')
1.94 : 4a0db4: 0f b6 06 movzbl (%rsi),%eax
0.39 : 4a0db7: 3c 20 cmp $0x20,%al
0.00 : 4a0db9: 74 65 je 4a0e20 <decode_tree_entry+0x80>
: return NULL;
:
: while ((c = *str++) != ' ') {
0.06 : 4a0dbb: 89 c2 mov %eax,%edx
: if (c < '0' || c > '7')
1.99 : 4a0dbd: 31 ed xor %ebp,%ebp
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
1.74 : 4a0dbf: 48 8d 5e 01 lea 0x1(%rsi),%rbx
: if (c < '0' || c > '7')
0.00 : 4a0dc3: 8d 42 d0 lea -0x30(%rdx),%eax
0.17 : 4a0dc6: 3c 07 cmp $0x7,%al
0.00 : 4a0dc8: 76 0d jbe 4a0dd7 <decode_tree_entry+0x37>
0.00 : 4a0dca: eb 54 jmp 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dcc: 0f 1f 40 00 nopl 0x0(%rax)
16.57 : 4a0dd0: 8d 42 d0 lea -0x30(%rdx),%eax
0.14 : 4a0dd3: 3c 07 cmp $0x7,%al
0.00 : 4a0dd5: 77 49 ja 4a0e20 <decode_tree_entry+0x80>
: return NULL;
: mode = (mode << 3) + (c - '0');
3.12 : 4a0dd7: 0f b6 c2 movzbl %dl,%eax
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
0.00 : 4a0dda: 0f b6 13 movzbl (%rbx),%edx
16.74 : 4a0ddd: 48 83 c3 01 add $0x1,%rbx
: if (c < '0' || c > '7')
: return NULL;
: mode = (mode << 3) + (c - '0');
The first column is the percentage of samples that arrived on that
particular line - relative to the total cost of the function.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 13:48:52 +00:00
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if (!self)
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return NULL;
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if (verbose >= 2)
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printf("new symbol: %016Lx [%08lx]: %s, hist: %p, obj_start: %p\n",
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2009-06-06 18:36:38 +00:00
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(__u64)start, (unsigned long)len, name, self->hist, (void *)(unsigned long)obj_start);
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perf_counter tools: Add 'perf annotate' feature
Add new perf sub-command to display annotated source code:
$ perf annotate decode_tree_entry
------------------------------------------------
Percent | Source code & Disassembly of /home/mingo/git/git
------------------------------------------------
:
: /home/mingo/git/git: file format elf64-x86-64
:
:
: Disassembly of section .text:
:
: 00000000004a0da0 <decode_tree_entry>:
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
3.82 : 4a0da0: 41 54 push %r12
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.17 : 4a0da2: 48 83 fa 17 cmp $0x17,%rdx
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
0.00 : 4a0da6: 49 89 fc mov %rdi,%r12
0.00 : 4a0da9: 55 push %rbp
3.37 : 4a0daa: 53 push %rbx
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.08 : 4a0dab: 76 73 jbe 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dad: 80 7c 16 eb 00 cmpb $0x0,-0x15(%rsi,%rdx,1)
3.48 : 4a0db2: 75 6c jne 4a0e20 <decode_tree_entry+0x80>
: static const char *get_mode(const char *str, unsigned int *modep)
: {
: unsigned char c;
: unsigned int mode = 0;
:
: if (*str == ' ')
1.94 : 4a0db4: 0f b6 06 movzbl (%rsi),%eax
0.39 : 4a0db7: 3c 20 cmp $0x20,%al
0.00 : 4a0db9: 74 65 je 4a0e20 <decode_tree_entry+0x80>
: return NULL;
:
: while ((c = *str++) != ' ') {
0.06 : 4a0dbb: 89 c2 mov %eax,%edx
: if (c < '0' || c > '7')
1.99 : 4a0dbd: 31 ed xor %ebp,%ebp
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
1.74 : 4a0dbf: 48 8d 5e 01 lea 0x1(%rsi),%rbx
: if (c < '0' || c > '7')
0.00 : 4a0dc3: 8d 42 d0 lea -0x30(%rdx),%eax
0.17 : 4a0dc6: 3c 07 cmp $0x7,%al
0.00 : 4a0dc8: 76 0d jbe 4a0dd7 <decode_tree_entry+0x37>
0.00 : 4a0dca: eb 54 jmp 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dcc: 0f 1f 40 00 nopl 0x0(%rax)
16.57 : 4a0dd0: 8d 42 d0 lea -0x30(%rdx),%eax
0.14 : 4a0dd3: 3c 07 cmp $0x7,%al
0.00 : 4a0dd5: 77 49 ja 4a0e20 <decode_tree_entry+0x80>
: return NULL;
: mode = (mode << 3) + (c - '0');
3.12 : 4a0dd7: 0f b6 c2 movzbl %dl,%eax
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
0.00 : 4a0dda: 0f b6 13 movzbl (%rbx),%edx
16.74 : 4a0ddd: 48 83 c3 01 add $0x1,%rbx
: if (c < '0' || c > '7')
: return NULL;
: mode = (mode << 3) + (c - '0');
The first column is the percentage of samples that arrived on that
particular line - relative to the total cost of the function.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 13:48:52 +00:00
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self->obj_start= obj_start;
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self->hist = NULL;
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self->hist_sum = 0;
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if (sym_hist_filter && !strcmp(name, sym_hist_filter))
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self->hist = calloc(sizeof(__u64), len);
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if (priv_size) {
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memset(self, 0, priv_size);
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self = ((void *)self) + priv_size;
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2009-05-28 17:55:04 +00:00
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}
|
perf_counter tools: Add 'perf annotate' feature
Add new perf sub-command to display annotated source code:
$ perf annotate decode_tree_entry
------------------------------------------------
Percent | Source code & Disassembly of /home/mingo/git/git
------------------------------------------------
:
: /home/mingo/git/git: file format elf64-x86-64
:
:
: Disassembly of section .text:
:
: 00000000004a0da0 <decode_tree_entry>:
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
3.82 : 4a0da0: 41 54 push %r12
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.17 : 4a0da2: 48 83 fa 17 cmp $0x17,%rdx
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
0.00 : 4a0da6: 49 89 fc mov %rdi,%r12
0.00 : 4a0da9: 55 push %rbp
3.37 : 4a0daa: 53 push %rbx
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.08 : 4a0dab: 76 73 jbe 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dad: 80 7c 16 eb 00 cmpb $0x0,-0x15(%rsi,%rdx,1)
3.48 : 4a0db2: 75 6c jne 4a0e20 <decode_tree_entry+0x80>
: static const char *get_mode(const char *str, unsigned int *modep)
: {
: unsigned char c;
: unsigned int mode = 0;
:
: if (*str == ' ')
1.94 : 4a0db4: 0f b6 06 movzbl (%rsi),%eax
0.39 : 4a0db7: 3c 20 cmp $0x20,%al
0.00 : 4a0db9: 74 65 je 4a0e20 <decode_tree_entry+0x80>
: return NULL;
:
: while ((c = *str++) != ' ') {
0.06 : 4a0dbb: 89 c2 mov %eax,%edx
: if (c < '0' || c > '7')
1.99 : 4a0dbd: 31 ed xor %ebp,%ebp
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
1.74 : 4a0dbf: 48 8d 5e 01 lea 0x1(%rsi),%rbx
: if (c < '0' || c > '7')
0.00 : 4a0dc3: 8d 42 d0 lea -0x30(%rdx),%eax
0.17 : 4a0dc6: 3c 07 cmp $0x7,%al
0.00 : 4a0dc8: 76 0d jbe 4a0dd7 <decode_tree_entry+0x37>
0.00 : 4a0dca: eb 54 jmp 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dcc: 0f 1f 40 00 nopl 0x0(%rax)
16.57 : 4a0dd0: 8d 42 d0 lea -0x30(%rdx),%eax
0.14 : 4a0dd3: 3c 07 cmp $0x7,%al
0.00 : 4a0dd5: 77 49 ja 4a0e20 <decode_tree_entry+0x80>
: return NULL;
: mode = (mode << 3) + (c - '0');
3.12 : 4a0dd7: 0f b6 c2 movzbl %dl,%eax
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
0.00 : 4a0dda: 0f b6 13 movzbl (%rbx),%edx
16.74 : 4a0ddd: 48 83 c3 01 add $0x1,%rbx
: if (c < '0' || c > '7')
: return NULL;
: mode = (mode << 3) + (c - '0');
The first column is the percentage of samples that arrived on that
particular line - relative to the total cost of the function.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 13:48:52 +00:00
|
|
|
self->start = start;
|
|
|
|
self->end = start + len - 1;
|
|
|
|
memcpy(self->name, name, namelen);
|
2009-05-28 17:55:04 +00:00
|
|
|
|
|
|
|
return self;
|
|
|
|
}
|
|
|
|
|
2009-05-28 17:55:13 +00:00
|
|
|
static void symbol__delete(struct symbol *self, unsigned int priv_size)
|
2009-05-28 17:55:04 +00:00
|
|
|
{
|
2009-05-28 17:55:13 +00:00
|
|
|
free(((void *)self) - priv_size);
|
2009-05-28 17:55:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static size_t symbol__fprintf(struct symbol *self, FILE *fp)
|
|
|
|
{
|
|
|
|
return fprintf(fp, " %llx-%llx %s\n",
|
|
|
|
self->start, self->end, self->name);
|
|
|
|
}
|
|
|
|
|
2009-05-28 17:55:13 +00:00
|
|
|
struct dso *dso__new(const char *name, unsigned int sym_priv_size)
|
2009-05-28 17:55:04 +00:00
|
|
|
{
|
|
|
|
struct dso *self = malloc(sizeof(*self) + strlen(name) + 1);
|
|
|
|
|
|
|
|
if (self != NULL) {
|
|
|
|
strcpy(self->name, name);
|
|
|
|
self->syms = RB_ROOT;
|
2009-05-28 17:55:13 +00:00
|
|
|
self->sym_priv_size = sym_priv_size;
|
2009-06-05 12:04:59 +00:00
|
|
|
self->find_symbol = dso__find_symbol;
|
2009-05-28 17:55:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return self;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dso__delete_symbols(struct dso *self)
|
|
|
|
{
|
|
|
|
struct symbol *pos;
|
|
|
|
struct rb_node *next = rb_first(&self->syms);
|
|
|
|
|
|
|
|
while (next) {
|
|
|
|
pos = rb_entry(next, struct symbol, rb_node);
|
|
|
|
next = rb_next(&pos->rb_node);
|
2009-06-01 20:50:57 +00:00
|
|
|
rb_erase(&pos->rb_node, &self->syms);
|
2009-05-28 17:55:13 +00:00
|
|
|
symbol__delete(pos, self->sym_priv_size);
|
2009-05-28 17:55:04 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void dso__delete(struct dso *self)
|
|
|
|
{
|
|
|
|
dso__delete_symbols(self);
|
|
|
|
free(self);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dso__insert_symbol(struct dso *self, struct symbol *sym)
|
|
|
|
{
|
|
|
|
struct rb_node **p = &self->syms.rb_node;
|
|
|
|
struct rb_node *parent = NULL;
|
|
|
|
const uint64_t ip = sym->start;
|
|
|
|
struct symbol *s;
|
|
|
|
|
|
|
|
while (*p != NULL) {
|
|
|
|
parent = *p;
|
|
|
|
s = rb_entry(parent, struct symbol, rb_node);
|
|
|
|
if (ip < s->start)
|
|
|
|
p = &(*p)->rb_left;
|
|
|
|
else
|
|
|
|
p = &(*p)->rb_right;
|
|
|
|
}
|
|
|
|
rb_link_node(&sym->rb_node, parent, p);
|
|
|
|
rb_insert_color(&sym->rb_node, &self->syms);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct symbol *dso__find_symbol(struct dso *self, uint64_t ip)
|
|
|
|
{
|
|
|
|
struct rb_node *n;
|
|
|
|
|
|
|
|
if (self == NULL)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
n = self->syms.rb_node;
|
|
|
|
|
|
|
|
while (n) {
|
|
|
|
struct symbol *s = rb_entry(n, struct symbol, rb_node);
|
|
|
|
|
|
|
|
if (ip < s->start)
|
|
|
|
n = n->rb_left;
|
|
|
|
else if (ip > s->end)
|
|
|
|
n = n->rb_right;
|
|
|
|
else
|
|
|
|
return s;
|
|
|
|
}
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
size_t dso__fprintf(struct dso *self, FILE *fp)
|
|
|
|
{
|
|
|
|
size_t ret = fprintf(fp, "dso: %s\n", self->name);
|
|
|
|
|
|
|
|
struct rb_node *nd;
|
|
|
|
for (nd = rb_first(&self->syms); nd; nd = rb_next(nd)) {
|
|
|
|
struct symbol *pos = rb_entry(nd, struct symbol, rb_node);
|
|
|
|
ret += symbol__fprintf(pos, fp);
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2009-06-04 12:13:04 +00:00
|
|
|
static int dso__load_kallsyms(struct dso *self, symbol_filter_t filter, int verbose)
|
2009-05-28 17:55:04 +00:00
|
|
|
{
|
|
|
|
struct rb_node *nd, *prevnd;
|
|
|
|
char *line = NULL;
|
|
|
|
size_t n;
|
|
|
|
FILE *file = fopen("/proc/kallsyms", "r");
|
|
|
|
|
|
|
|
if (file == NULL)
|
|
|
|
goto out_failure;
|
|
|
|
|
|
|
|
while (!feof(file)) {
|
2009-06-01 20:50:19 +00:00
|
|
|
__u64 start;
|
2009-05-28 17:55:04 +00:00
|
|
|
struct symbol *sym;
|
|
|
|
int line_len, len;
|
|
|
|
char symbol_type;
|
|
|
|
|
|
|
|
line_len = getline(&line, &n, file);
|
|
|
|
if (line_len < 0)
|
|
|
|
break;
|
|
|
|
|
|
|
|
if (!line)
|
|
|
|
goto out_failure;
|
|
|
|
|
|
|
|
line[--line_len] = '\0'; /* \n */
|
|
|
|
|
2009-06-01 20:50:19 +00:00
|
|
|
len = hex2u64(line, &start);
|
2009-05-28 17:55:04 +00:00
|
|
|
|
|
|
|
len++;
|
|
|
|
if (len + 2 >= line_len)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
symbol_type = toupper(line[len]);
|
|
|
|
/*
|
|
|
|
* We're interested only in code ('T'ext)
|
|
|
|
*/
|
|
|
|
if (symbol_type != 'T' && symbol_type != 'W')
|
|
|
|
continue;
|
|
|
|
/*
|
|
|
|
* Well fix up the end later, when we have all sorted.
|
|
|
|
*/
|
2009-05-28 17:55:13 +00:00
|
|
|
sym = symbol__new(start, 0xdead, line + len + 2,
|
perf_counter tools: Add 'perf annotate' feature
Add new perf sub-command to display annotated source code:
$ perf annotate decode_tree_entry
------------------------------------------------
Percent | Source code & Disassembly of /home/mingo/git/git
------------------------------------------------
:
: /home/mingo/git/git: file format elf64-x86-64
:
:
: Disassembly of section .text:
:
: 00000000004a0da0 <decode_tree_entry>:
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
3.82 : 4a0da0: 41 54 push %r12
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.17 : 4a0da2: 48 83 fa 17 cmp $0x17,%rdx
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
0.00 : 4a0da6: 49 89 fc mov %rdi,%r12
0.00 : 4a0da9: 55 push %rbp
3.37 : 4a0daa: 53 push %rbx
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.08 : 4a0dab: 76 73 jbe 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dad: 80 7c 16 eb 00 cmpb $0x0,-0x15(%rsi,%rdx,1)
3.48 : 4a0db2: 75 6c jne 4a0e20 <decode_tree_entry+0x80>
: static const char *get_mode(const char *str, unsigned int *modep)
: {
: unsigned char c;
: unsigned int mode = 0;
:
: if (*str == ' ')
1.94 : 4a0db4: 0f b6 06 movzbl (%rsi),%eax
0.39 : 4a0db7: 3c 20 cmp $0x20,%al
0.00 : 4a0db9: 74 65 je 4a0e20 <decode_tree_entry+0x80>
: return NULL;
:
: while ((c = *str++) != ' ') {
0.06 : 4a0dbb: 89 c2 mov %eax,%edx
: if (c < '0' || c > '7')
1.99 : 4a0dbd: 31 ed xor %ebp,%ebp
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
1.74 : 4a0dbf: 48 8d 5e 01 lea 0x1(%rsi),%rbx
: if (c < '0' || c > '7')
0.00 : 4a0dc3: 8d 42 d0 lea -0x30(%rdx),%eax
0.17 : 4a0dc6: 3c 07 cmp $0x7,%al
0.00 : 4a0dc8: 76 0d jbe 4a0dd7 <decode_tree_entry+0x37>
0.00 : 4a0dca: eb 54 jmp 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dcc: 0f 1f 40 00 nopl 0x0(%rax)
16.57 : 4a0dd0: 8d 42 d0 lea -0x30(%rdx),%eax
0.14 : 4a0dd3: 3c 07 cmp $0x7,%al
0.00 : 4a0dd5: 77 49 ja 4a0e20 <decode_tree_entry+0x80>
: return NULL;
: mode = (mode << 3) + (c - '0');
3.12 : 4a0dd7: 0f b6 c2 movzbl %dl,%eax
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
0.00 : 4a0dda: 0f b6 13 movzbl (%rbx),%edx
16.74 : 4a0ddd: 48 83 c3 01 add $0x1,%rbx
: if (c < '0' || c > '7')
: return NULL;
: mode = (mode << 3) + (c - '0');
The first column is the percentage of samples that arrived on that
particular line - relative to the total cost of the function.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 13:48:52 +00:00
|
|
|
self->sym_priv_size, 0, verbose);
|
2009-05-28 17:55:04 +00:00
|
|
|
|
|
|
|
if (sym == NULL)
|
|
|
|
goto out_delete_line;
|
|
|
|
|
2009-05-28 17:55:26 +00:00
|
|
|
if (filter && filter(self, sym))
|
|
|
|
symbol__delete(sym, self->sym_priv_size);
|
|
|
|
else
|
|
|
|
dso__insert_symbol(self, sym);
|
2009-05-28 17:55:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Now that we have all sorted out, just set the ->end of all
|
|
|
|
* symbols
|
|
|
|
*/
|
|
|
|
prevnd = rb_first(&self->syms);
|
|
|
|
|
|
|
|
if (prevnd == NULL)
|
|
|
|
goto out_delete_line;
|
|
|
|
|
|
|
|
for (nd = rb_next(prevnd); nd; nd = rb_next(nd)) {
|
|
|
|
struct symbol *prev = rb_entry(prevnd, struct symbol, rb_node),
|
|
|
|
*curr = rb_entry(nd, struct symbol, rb_node);
|
|
|
|
|
|
|
|
prev->end = curr->start - 1;
|
|
|
|
prevnd = nd;
|
|
|
|
}
|
|
|
|
|
|
|
|
free(line);
|
|
|
|
fclose(file);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
out_delete_line:
|
|
|
|
free(line);
|
|
|
|
out_failure:
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2009-06-08 18:12:48 +00:00
|
|
|
static int dso__load_perf_map(struct dso *self, symbol_filter_t filter, int verbose)
|
|
|
|
{
|
|
|
|
char *line = NULL;
|
|
|
|
size_t n;
|
|
|
|
FILE *file;
|
|
|
|
int nr_syms = 0;
|
|
|
|
|
|
|
|
file = fopen(self->name, "r");
|
|
|
|
if (file == NULL)
|
|
|
|
goto out_failure;
|
|
|
|
|
|
|
|
while (!feof(file)) {
|
|
|
|
__u64 start, size;
|
|
|
|
struct symbol *sym;
|
|
|
|
int line_len, len;
|
|
|
|
|
|
|
|
line_len = getline(&line, &n, file);
|
|
|
|
if (line_len < 0)
|
|
|
|
break;
|
|
|
|
|
|
|
|
if (!line)
|
|
|
|
goto out_failure;
|
|
|
|
|
|
|
|
line[--line_len] = '\0'; /* \n */
|
|
|
|
|
|
|
|
len = hex2u64(line, &start);
|
|
|
|
|
|
|
|
len++;
|
|
|
|
if (len + 2 >= line_len)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
len += hex2u64(line + len, &size);
|
|
|
|
|
|
|
|
len++;
|
|
|
|
if (len + 2 >= line_len)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
sym = symbol__new(start, size, line + len,
|
|
|
|
self->sym_priv_size, start, verbose);
|
|
|
|
|
|
|
|
if (sym == NULL)
|
|
|
|
goto out_delete_line;
|
|
|
|
|
|
|
|
if (filter && filter(self, sym))
|
|
|
|
symbol__delete(sym, self->sym_priv_size);
|
|
|
|
else {
|
|
|
|
dso__insert_symbol(self, sym);
|
|
|
|
nr_syms++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
free(line);
|
|
|
|
fclose(file);
|
|
|
|
|
|
|
|
return nr_syms;
|
|
|
|
|
|
|
|
out_delete_line:
|
|
|
|
free(line);
|
|
|
|
out_failure:
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2009-05-28 17:55:04 +00:00
|
|
|
/**
|
|
|
|
* elf_symtab__for_each_symbol - iterate thru all the symbols
|
|
|
|
*
|
|
|
|
* @self: struct elf_symtab instance to iterate
|
|
|
|
* @index: uint32_t index
|
|
|
|
* @sym: GElf_Sym iterator
|
|
|
|
*/
|
|
|
|
#define elf_symtab__for_each_symbol(syms, nr_syms, index, sym) \
|
|
|
|
for (index = 0, gelf_getsym(syms, index, &sym);\
|
|
|
|
index < nr_syms; \
|
|
|
|
index++, gelf_getsym(syms, index, &sym))
|
|
|
|
|
|
|
|
static inline uint8_t elf_sym__type(const GElf_Sym *sym)
|
|
|
|
{
|
|
|
|
return GELF_ST_TYPE(sym->st_info);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline int elf_sym__is_function(const GElf_Sym *sym)
|
|
|
|
{
|
|
|
|
return elf_sym__type(sym) == STT_FUNC &&
|
|
|
|
sym->st_name != 0 &&
|
|
|
|
sym->st_shndx != SHN_UNDEF &&
|
|
|
|
sym->st_size != 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline const char *elf_sym__name(const GElf_Sym *sym,
|
|
|
|
const Elf_Data *symstrs)
|
|
|
|
{
|
|
|
|
return symstrs->d_buf + sym->st_name;
|
|
|
|
}
|
|
|
|
|
|
|
|
static Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep,
|
|
|
|
GElf_Shdr *shp, const char *name,
|
|
|
|
size_t *index)
|
|
|
|
{
|
|
|
|
Elf_Scn *sec = NULL;
|
|
|
|
size_t cnt = 1;
|
|
|
|
|
|
|
|
while ((sec = elf_nextscn(elf, sec)) != NULL) {
|
|
|
|
char *str;
|
|
|
|
|
|
|
|
gelf_getshdr(sec, shp);
|
|
|
|
str = elf_strptr(elf, ep->e_shstrndx, shp->sh_name);
|
|
|
|
if (!strcmp(name, str)) {
|
|
|
|
if (index)
|
|
|
|
*index = cnt;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
++cnt;
|
|
|
|
}
|
|
|
|
|
|
|
|
return sec;
|
|
|
|
}
|
|
|
|
|
2009-06-03 03:54:33 +00:00
|
|
|
#define elf_section__for_each_rel(reldata, pos, pos_mem, idx, nr_entries) \
|
|
|
|
for (idx = 0, pos = gelf_getrel(reldata, 0, &pos_mem); \
|
|
|
|
idx < nr_entries; \
|
|
|
|
++idx, pos = gelf_getrel(reldata, idx, &pos_mem))
|
|
|
|
|
|
|
|
#define elf_section__for_each_rela(reldata, pos, pos_mem, idx, nr_entries) \
|
|
|
|
for (idx = 0, pos = gelf_getrela(reldata, 0, &pos_mem); \
|
|
|
|
idx < nr_entries; \
|
|
|
|
++idx, pos = gelf_getrela(reldata, idx, &pos_mem))
|
|
|
|
|
|
|
|
static int dso__synthesize_plt_symbols(struct dso *self, Elf *elf,
|
|
|
|
GElf_Ehdr *ehdr, Elf_Scn *scn_dynsym,
|
|
|
|
GElf_Shdr *shdr_dynsym,
|
perf_counter tools: Add 'perf annotate' feature
Add new perf sub-command to display annotated source code:
$ perf annotate decode_tree_entry
------------------------------------------------
Percent | Source code & Disassembly of /home/mingo/git/git
------------------------------------------------
:
: /home/mingo/git/git: file format elf64-x86-64
:
:
: Disassembly of section .text:
:
: 00000000004a0da0 <decode_tree_entry>:
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
3.82 : 4a0da0: 41 54 push %r12
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.17 : 4a0da2: 48 83 fa 17 cmp $0x17,%rdx
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
0.00 : 4a0da6: 49 89 fc mov %rdi,%r12
0.00 : 4a0da9: 55 push %rbp
3.37 : 4a0daa: 53 push %rbx
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.08 : 4a0dab: 76 73 jbe 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dad: 80 7c 16 eb 00 cmpb $0x0,-0x15(%rsi,%rdx,1)
3.48 : 4a0db2: 75 6c jne 4a0e20 <decode_tree_entry+0x80>
: static const char *get_mode(const char *str, unsigned int *modep)
: {
: unsigned char c;
: unsigned int mode = 0;
:
: if (*str == ' ')
1.94 : 4a0db4: 0f b6 06 movzbl (%rsi),%eax
0.39 : 4a0db7: 3c 20 cmp $0x20,%al
0.00 : 4a0db9: 74 65 je 4a0e20 <decode_tree_entry+0x80>
: return NULL;
:
: while ((c = *str++) != ' ') {
0.06 : 4a0dbb: 89 c2 mov %eax,%edx
: if (c < '0' || c > '7')
1.99 : 4a0dbd: 31 ed xor %ebp,%ebp
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
1.74 : 4a0dbf: 48 8d 5e 01 lea 0x1(%rsi),%rbx
: if (c < '0' || c > '7')
0.00 : 4a0dc3: 8d 42 d0 lea -0x30(%rdx),%eax
0.17 : 4a0dc6: 3c 07 cmp $0x7,%al
0.00 : 4a0dc8: 76 0d jbe 4a0dd7 <decode_tree_entry+0x37>
0.00 : 4a0dca: eb 54 jmp 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dcc: 0f 1f 40 00 nopl 0x0(%rax)
16.57 : 4a0dd0: 8d 42 d0 lea -0x30(%rdx),%eax
0.14 : 4a0dd3: 3c 07 cmp $0x7,%al
0.00 : 4a0dd5: 77 49 ja 4a0e20 <decode_tree_entry+0x80>
: return NULL;
: mode = (mode << 3) + (c - '0');
3.12 : 4a0dd7: 0f b6 c2 movzbl %dl,%eax
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
0.00 : 4a0dda: 0f b6 13 movzbl (%rbx),%edx
16.74 : 4a0ddd: 48 83 c3 01 add $0x1,%rbx
: if (c < '0' || c > '7')
: return NULL;
: mode = (mode << 3) + (c - '0');
The first column is the percentage of samples that arrived on that
particular line - relative to the total cost of the function.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 13:48:52 +00:00
|
|
|
size_t dynsym_idx, int verbose)
|
2009-06-03 03:54:33 +00:00
|
|
|
{
|
|
|
|
uint32_t nr_rel_entries, idx;
|
|
|
|
GElf_Sym sym;
|
|
|
|
__u64 plt_offset;
|
|
|
|
GElf_Shdr shdr_plt;
|
|
|
|
struct symbol *f;
|
|
|
|
GElf_Shdr shdr_rel_plt;
|
|
|
|
Elf_Data *reldata, *syms, *symstrs;
|
|
|
|
Elf_Scn *scn_plt_rel, *scn_symstrs;
|
|
|
|
char sympltname[1024];
|
|
|
|
int nr = 0, symidx;
|
|
|
|
|
|
|
|
scn_plt_rel = elf_section_by_name(elf, ehdr, &shdr_rel_plt,
|
|
|
|
".rela.plt", NULL);
|
|
|
|
if (scn_plt_rel == NULL) {
|
|
|
|
scn_plt_rel = elf_section_by_name(elf, ehdr, &shdr_rel_plt,
|
|
|
|
".rel.plt", NULL);
|
|
|
|
if (scn_plt_rel == NULL)
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (shdr_rel_plt.sh_link != dynsym_idx)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (elf_section_by_name(elf, ehdr, &shdr_plt, ".plt", NULL) == NULL)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Fetch the relocation section to find the indexes to the GOT
|
|
|
|
* and the symbols in the .dynsym they refer to.
|
|
|
|
*/
|
|
|
|
reldata = elf_getdata(scn_plt_rel, NULL);
|
|
|
|
if (reldata == NULL)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
syms = elf_getdata(scn_dynsym, NULL);
|
|
|
|
if (syms == NULL)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
scn_symstrs = elf_getscn(elf, shdr_dynsym->sh_link);
|
|
|
|
if (scn_symstrs == NULL)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
symstrs = elf_getdata(scn_symstrs, NULL);
|
|
|
|
if (symstrs == NULL)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
nr_rel_entries = shdr_rel_plt.sh_size / shdr_rel_plt.sh_entsize;
|
|
|
|
plt_offset = shdr_plt.sh_offset;
|
|
|
|
|
|
|
|
if (shdr_rel_plt.sh_type == SHT_RELA) {
|
|
|
|
GElf_Rela pos_mem, *pos;
|
|
|
|
|
|
|
|
elf_section__for_each_rela(reldata, pos, pos_mem, idx,
|
|
|
|
nr_rel_entries) {
|
|
|
|
symidx = GELF_R_SYM(pos->r_info);
|
|
|
|
plt_offset += shdr_plt.sh_entsize;
|
|
|
|
gelf_getsym(syms, symidx, &sym);
|
|
|
|
snprintf(sympltname, sizeof(sympltname),
|
|
|
|
"%s@plt", elf_sym__name(&sym, symstrs));
|
|
|
|
|
|
|
|
f = symbol__new(plt_offset, shdr_plt.sh_entsize,
|
perf_counter tools: Add 'perf annotate' feature
Add new perf sub-command to display annotated source code:
$ perf annotate decode_tree_entry
------------------------------------------------
Percent | Source code & Disassembly of /home/mingo/git/git
------------------------------------------------
:
: /home/mingo/git/git: file format elf64-x86-64
:
:
: Disassembly of section .text:
:
: 00000000004a0da0 <decode_tree_entry>:
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
3.82 : 4a0da0: 41 54 push %r12
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.17 : 4a0da2: 48 83 fa 17 cmp $0x17,%rdx
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
0.00 : 4a0da6: 49 89 fc mov %rdi,%r12
0.00 : 4a0da9: 55 push %rbp
3.37 : 4a0daa: 53 push %rbx
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.08 : 4a0dab: 76 73 jbe 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dad: 80 7c 16 eb 00 cmpb $0x0,-0x15(%rsi,%rdx,1)
3.48 : 4a0db2: 75 6c jne 4a0e20 <decode_tree_entry+0x80>
: static const char *get_mode(const char *str, unsigned int *modep)
: {
: unsigned char c;
: unsigned int mode = 0;
:
: if (*str == ' ')
1.94 : 4a0db4: 0f b6 06 movzbl (%rsi),%eax
0.39 : 4a0db7: 3c 20 cmp $0x20,%al
0.00 : 4a0db9: 74 65 je 4a0e20 <decode_tree_entry+0x80>
: return NULL;
:
: while ((c = *str++) != ' ') {
0.06 : 4a0dbb: 89 c2 mov %eax,%edx
: if (c < '0' || c > '7')
1.99 : 4a0dbd: 31 ed xor %ebp,%ebp
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
1.74 : 4a0dbf: 48 8d 5e 01 lea 0x1(%rsi),%rbx
: if (c < '0' || c > '7')
0.00 : 4a0dc3: 8d 42 d0 lea -0x30(%rdx),%eax
0.17 : 4a0dc6: 3c 07 cmp $0x7,%al
0.00 : 4a0dc8: 76 0d jbe 4a0dd7 <decode_tree_entry+0x37>
0.00 : 4a0dca: eb 54 jmp 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dcc: 0f 1f 40 00 nopl 0x0(%rax)
16.57 : 4a0dd0: 8d 42 d0 lea -0x30(%rdx),%eax
0.14 : 4a0dd3: 3c 07 cmp $0x7,%al
0.00 : 4a0dd5: 77 49 ja 4a0e20 <decode_tree_entry+0x80>
: return NULL;
: mode = (mode << 3) + (c - '0');
3.12 : 4a0dd7: 0f b6 c2 movzbl %dl,%eax
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
0.00 : 4a0dda: 0f b6 13 movzbl (%rbx),%edx
16.74 : 4a0ddd: 48 83 c3 01 add $0x1,%rbx
: if (c < '0' || c > '7')
: return NULL;
: mode = (mode << 3) + (c - '0');
The first column is the percentage of samples that arrived on that
particular line - relative to the total cost of the function.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 13:48:52 +00:00
|
|
|
sympltname, self->sym_priv_size, 0, verbose);
|
2009-06-03 03:54:33 +00:00
|
|
|
if (!f)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
dso__insert_symbol(self, f);
|
|
|
|
++nr;
|
|
|
|
}
|
|
|
|
} else if (shdr_rel_plt.sh_type == SHT_REL) {
|
|
|
|
GElf_Rel pos_mem, *pos;
|
|
|
|
elf_section__for_each_rel(reldata, pos, pos_mem, idx,
|
|
|
|
nr_rel_entries) {
|
|
|
|
symidx = GELF_R_SYM(pos->r_info);
|
|
|
|
plt_offset += shdr_plt.sh_entsize;
|
|
|
|
gelf_getsym(syms, symidx, &sym);
|
|
|
|
snprintf(sympltname, sizeof(sympltname),
|
|
|
|
"%s@plt", elf_sym__name(&sym, symstrs));
|
|
|
|
|
|
|
|
f = symbol__new(plt_offset, shdr_plt.sh_entsize,
|
perf_counter tools: Add 'perf annotate' feature
Add new perf sub-command to display annotated source code:
$ perf annotate decode_tree_entry
------------------------------------------------
Percent | Source code & Disassembly of /home/mingo/git/git
------------------------------------------------
:
: /home/mingo/git/git: file format elf64-x86-64
:
:
: Disassembly of section .text:
:
: 00000000004a0da0 <decode_tree_entry>:
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
3.82 : 4a0da0: 41 54 push %r12
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.17 : 4a0da2: 48 83 fa 17 cmp $0x17,%rdx
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
0.00 : 4a0da6: 49 89 fc mov %rdi,%r12
0.00 : 4a0da9: 55 push %rbp
3.37 : 4a0daa: 53 push %rbx
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.08 : 4a0dab: 76 73 jbe 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dad: 80 7c 16 eb 00 cmpb $0x0,-0x15(%rsi,%rdx,1)
3.48 : 4a0db2: 75 6c jne 4a0e20 <decode_tree_entry+0x80>
: static const char *get_mode(const char *str, unsigned int *modep)
: {
: unsigned char c;
: unsigned int mode = 0;
:
: if (*str == ' ')
1.94 : 4a0db4: 0f b6 06 movzbl (%rsi),%eax
0.39 : 4a0db7: 3c 20 cmp $0x20,%al
0.00 : 4a0db9: 74 65 je 4a0e20 <decode_tree_entry+0x80>
: return NULL;
:
: while ((c = *str++) != ' ') {
0.06 : 4a0dbb: 89 c2 mov %eax,%edx
: if (c < '0' || c > '7')
1.99 : 4a0dbd: 31 ed xor %ebp,%ebp
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
1.74 : 4a0dbf: 48 8d 5e 01 lea 0x1(%rsi),%rbx
: if (c < '0' || c > '7')
0.00 : 4a0dc3: 8d 42 d0 lea -0x30(%rdx),%eax
0.17 : 4a0dc6: 3c 07 cmp $0x7,%al
0.00 : 4a0dc8: 76 0d jbe 4a0dd7 <decode_tree_entry+0x37>
0.00 : 4a0dca: eb 54 jmp 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dcc: 0f 1f 40 00 nopl 0x0(%rax)
16.57 : 4a0dd0: 8d 42 d0 lea -0x30(%rdx),%eax
0.14 : 4a0dd3: 3c 07 cmp $0x7,%al
0.00 : 4a0dd5: 77 49 ja 4a0e20 <decode_tree_entry+0x80>
: return NULL;
: mode = (mode << 3) + (c - '0');
3.12 : 4a0dd7: 0f b6 c2 movzbl %dl,%eax
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
0.00 : 4a0dda: 0f b6 13 movzbl (%rbx),%edx
16.74 : 4a0ddd: 48 83 c3 01 add $0x1,%rbx
: if (c < '0' || c > '7')
: return NULL;
: mode = (mode << 3) + (c - '0');
The first column is the percentage of samples that arrived on that
particular line - relative to the total cost of the function.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 13:48:52 +00:00
|
|
|
sympltname, self->sym_priv_size, 0, verbose);
|
2009-06-03 03:54:33 +00:00
|
|
|
if (!f)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
dso__insert_symbol(self, f);
|
|
|
|
++nr;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* TODO: There are still one more shdr_rel_plt.sh_type
|
|
|
|
* I have to investigate, but probably should be ignored.
|
|
|
|
*/
|
|
|
|
}
|
|
|
|
|
|
|
|
return nr;
|
|
|
|
}
|
|
|
|
|
2009-05-28 17:55:26 +00:00
|
|
|
static int dso__load_sym(struct dso *self, int fd, const char *name,
|
2009-06-04 12:13:04 +00:00
|
|
|
symbol_filter_t filter, int verbose)
|
2009-05-28 17:55:04 +00:00
|
|
|
{
|
|
|
|
Elf_Data *symstrs;
|
|
|
|
uint32_t nr_syms;
|
|
|
|
int err = -1;
|
|
|
|
uint32_t index;
|
|
|
|
GElf_Ehdr ehdr;
|
|
|
|
GElf_Shdr shdr;
|
|
|
|
Elf_Data *syms;
|
|
|
|
GElf_Sym sym;
|
2009-06-03 03:54:33 +00:00
|
|
|
Elf_Scn *sec, *sec_dynsym;
|
2009-05-28 17:55:04 +00:00
|
|
|
Elf *elf;
|
2009-06-03 03:54:33 +00:00
|
|
|
size_t dynsym_idx;
|
2009-05-28 17:55:04 +00:00
|
|
|
int nr = 0;
|
|
|
|
|
|
|
|
elf = elf_begin(fd, ELF_C_READ_MMAP, NULL);
|
|
|
|
if (elf == NULL) {
|
2009-06-04 12:13:04 +00:00
|
|
|
if (verbose)
|
|
|
|
fprintf(stderr, "%s: cannot read %s ELF file.\n",
|
|
|
|
__func__, name);
|
2009-05-28 17:55:04 +00:00
|
|
|
goto out_close;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (gelf_getehdr(elf, &ehdr) == NULL) {
|
2009-06-04 12:13:04 +00:00
|
|
|
if (verbose)
|
|
|
|
fprintf(stderr, "%s: cannot get elf header.\n", __func__);
|
2009-05-28 17:55:04 +00:00
|
|
|
goto out_elf_end;
|
|
|
|
}
|
|
|
|
|
2009-06-03 03:54:33 +00:00
|
|
|
/*
|
|
|
|
* We need to check if we have a .dynsym, so that we can handle the
|
|
|
|
* .plt, synthesizing its symbols, that aren't on the symtabs (be it
|
|
|
|
* .dynsym or .symtab)
|
|
|
|
*/
|
|
|
|
sec_dynsym = elf_section_by_name(elf, &ehdr, &shdr,
|
|
|
|
".dynsym", &dynsym_idx);
|
|
|
|
if (sec_dynsym != NULL) {
|
|
|
|
nr = dso__synthesize_plt_symbols(self, elf, &ehdr,
|
|
|
|
sec_dynsym, &shdr,
|
perf_counter tools: Add 'perf annotate' feature
Add new perf sub-command to display annotated source code:
$ perf annotate decode_tree_entry
------------------------------------------------
Percent | Source code & Disassembly of /home/mingo/git/git
------------------------------------------------
:
: /home/mingo/git/git: file format elf64-x86-64
:
:
: Disassembly of section .text:
:
: 00000000004a0da0 <decode_tree_entry>:
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
3.82 : 4a0da0: 41 54 push %r12
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.17 : 4a0da2: 48 83 fa 17 cmp $0x17,%rdx
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
0.00 : 4a0da6: 49 89 fc mov %rdi,%r12
0.00 : 4a0da9: 55 push %rbp
3.37 : 4a0daa: 53 push %rbx
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.08 : 4a0dab: 76 73 jbe 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dad: 80 7c 16 eb 00 cmpb $0x0,-0x15(%rsi,%rdx,1)
3.48 : 4a0db2: 75 6c jne 4a0e20 <decode_tree_entry+0x80>
: static const char *get_mode(const char *str, unsigned int *modep)
: {
: unsigned char c;
: unsigned int mode = 0;
:
: if (*str == ' ')
1.94 : 4a0db4: 0f b6 06 movzbl (%rsi),%eax
0.39 : 4a0db7: 3c 20 cmp $0x20,%al
0.00 : 4a0db9: 74 65 je 4a0e20 <decode_tree_entry+0x80>
: return NULL;
:
: while ((c = *str++) != ' ') {
0.06 : 4a0dbb: 89 c2 mov %eax,%edx
: if (c < '0' || c > '7')
1.99 : 4a0dbd: 31 ed xor %ebp,%ebp
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
1.74 : 4a0dbf: 48 8d 5e 01 lea 0x1(%rsi),%rbx
: if (c < '0' || c > '7')
0.00 : 4a0dc3: 8d 42 d0 lea -0x30(%rdx),%eax
0.17 : 4a0dc6: 3c 07 cmp $0x7,%al
0.00 : 4a0dc8: 76 0d jbe 4a0dd7 <decode_tree_entry+0x37>
0.00 : 4a0dca: eb 54 jmp 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dcc: 0f 1f 40 00 nopl 0x0(%rax)
16.57 : 4a0dd0: 8d 42 d0 lea -0x30(%rdx),%eax
0.14 : 4a0dd3: 3c 07 cmp $0x7,%al
0.00 : 4a0dd5: 77 49 ja 4a0e20 <decode_tree_entry+0x80>
: return NULL;
: mode = (mode << 3) + (c - '0');
3.12 : 4a0dd7: 0f b6 c2 movzbl %dl,%eax
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
0.00 : 4a0dda: 0f b6 13 movzbl (%rbx),%edx
16.74 : 4a0ddd: 48 83 c3 01 add $0x1,%rbx
: if (c < '0' || c > '7')
: return NULL;
: mode = (mode << 3) + (c - '0');
The first column is the percentage of samples that arrived on that
particular line - relative to the total cost of the function.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 13:48:52 +00:00
|
|
|
dynsym_idx, verbose);
|
2009-06-03 03:54:33 +00:00
|
|
|
if (nr < 0)
|
|
|
|
goto out_elf_end;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* But if we have a full .symtab (that is a superset of .dynsym) we
|
|
|
|
* should add the symbols not in the .dynsyn
|
|
|
|
*/
|
2009-05-28 17:55:04 +00:00
|
|
|
sec = elf_section_by_name(elf, &ehdr, &shdr, ".symtab", NULL);
|
2009-06-03 03:54:33 +00:00
|
|
|
if (sec == NULL) {
|
|
|
|
if (sec_dynsym == NULL)
|
|
|
|
goto out_elf_end;
|
2009-05-28 17:55:04 +00:00
|
|
|
|
2009-06-03 03:54:33 +00:00
|
|
|
sec = sec_dynsym;
|
|
|
|
gelf_getshdr(sec, &shdr);
|
|
|
|
}
|
2009-05-28 17:55:04 +00:00
|
|
|
|
|
|
|
syms = elf_getdata(sec, NULL);
|
|
|
|
if (syms == NULL)
|
|
|
|
goto out_elf_end;
|
|
|
|
|
|
|
|
sec = elf_getscn(elf, shdr.sh_link);
|
|
|
|
if (sec == NULL)
|
|
|
|
goto out_elf_end;
|
|
|
|
|
|
|
|
symstrs = elf_getdata(sec, NULL);
|
|
|
|
if (symstrs == NULL)
|
|
|
|
goto out_elf_end;
|
|
|
|
|
|
|
|
nr_syms = shdr.sh_size / shdr.sh_entsize;
|
|
|
|
|
2009-06-06 19:22:33 +00:00
|
|
|
memset(&sym, 0, sizeof(sym));
|
|
|
|
|
2009-05-28 17:55:04 +00:00
|
|
|
elf_symtab__for_each_symbol(syms, nr_syms, index, sym) {
|
|
|
|
struct symbol *f;
|
perf_counter tools: Add 'perf annotate' feature
Add new perf sub-command to display annotated source code:
$ perf annotate decode_tree_entry
------------------------------------------------
Percent | Source code & Disassembly of /home/mingo/git/git
------------------------------------------------
:
: /home/mingo/git/git: file format elf64-x86-64
:
:
: Disassembly of section .text:
:
: 00000000004a0da0 <decode_tree_entry>:
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
3.82 : 4a0da0: 41 54 push %r12
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.17 : 4a0da2: 48 83 fa 17 cmp $0x17,%rdx
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
0.00 : 4a0da6: 49 89 fc mov %rdi,%r12
0.00 : 4a0da9: 55 push %rbp
3.37 : 4a0daa: 53 push %rbx
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.08 : 4a0dab: 76 73 jbe 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dad: 80 7c 16 eb 00 cmpb $0x0,-0x15(%rsi,%rdx,1)
3.48 : 4a0db2: 75 6c jne 4a0e20 <decode_tree_entry+0x80>
: static const char *get_mode(const char *str, unsigned int *modep)
: {
: unsigned char c;
: unsigned int mode = 0;
:
: if (*str == ' ')
1.94 : 4a0db4: 0f b6 06 movzbl (%rsi),%eax
0.39 : 4a0db7: 3c 20 cmp $0x20,%al
0.00 : 4a0db9: 74 65 je 4a0e20 <decode_tree_entry+0x80>
: return NULL;
:
: while ((c = *str++) != ' ') {
0.06 : 4a0dbb: 89 c2 mov %eax,%edx
: if (c < '0' || c > '7')
1.99 : 4a0dbd: 31 ed xor %ebp,%ebp
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
1.74 : 4a0dbf: 48 8d 5e 01 lea 0x1(%rsi),%rbx
: if (c < '0' || c > '7')
0.00 : 4a0dc3: 8d 42 d0 lea -0x30(%rdx),%eax
0.17 : 4a0dc6: 3c 07 cmp $0x7,%al
0.00 : 4a0dc8: 76 0d jbe 4a0dd7 <decode_tree_entry+0x37>
0.00 : 4a0dca: eb 54 jmp 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dcc: 0f 1f 40 00 nopl 0x0(%rax)
16.57 : 4a0dd0: 8d 42 d0 lea -0x30(%rdx),%eax
0.14 : 4a0dd3: 3c 07 cmp $0x7,%al
0.00 : 4a0dd5: 77 49 ja 4a0e20 <decode_tree_entry+0x80>
: return NULL;
: mode = (mode << 3) + (c - '0');
3.12 : 4a0dd7: 0f b6 c2 movzbl %dl,%eax
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
0.00 : 4a0dda: 0f b6 13 movzbl (%rbx),%edx
16.74 : 4a0ddd: 48 83 c3 01 add $0x1,%rbx
: if (c < '0' || c > '7')
: return NULL;
: mode = (mode << 3) + (c - '0');
The first column is the percentage of samples that arrived on that
particular line - relative to the total cost of the function.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 13:48:52 +00:00
|
|
|
uint64_t obj_start;
|
2009-05-28 17:55:04 +00:00
|
|
|
|
|
|
|
if (!elf_sym__is_function(&sym))
|
|
|
|
continue;
|
|
|
|
|
|
|
|
sec = elf_getscn(elf, sym.st_shndx);
|
|
|
|
if (!sec)
|
|
|
|
goto out_elf_end;
|
|
|
|
|
|
|
|
gelf_getshdr(sec, &shdr);
|
perf_counter tools: Add 'perf annotate' feature
Add new perf sub-command to display annotated source code:
$ perf annotate decode_tree_entry
------------------------------------------------
Percent | Source code & Disassembly of /home/mingo/git/git
------------------------------------------------
:
: /home/mingo/git/git: file format elf64-x86-64
:
:
: Disassembly of section .text:
:
: 00000000004a0da0 <decode_tree_entry>:
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
3.82 : 4a0da0: 41 54 push %r12
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.17 : 4a0da2: 48 83 fa 17 cmp $0x17,%rdx
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
0.00 : 4a0da6: 49 89 fc mov %rdi,%r12
0.00 : 4a0da9: 55 push %rbp
3.37 : 4a0daa: 53 push %rbx
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.08 : 4a0dab: 76 73 jbe 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dad: 80 7c 16 eb 00 cmpb $0x0,-0x15(%rsi,%rdx,1)
3.48 : 4a0db2: 75 6c jne 4a0e20 <decode_tree_entry+0x80>
: static const char *get_mode(const char *str, unsigned int *modep)
: {
: unsigned char c;
: unsigned int mode = 0;
:
: if (*str == ' ')
1.94 : 4a0db4: 0f b6 06 movzbl (%rsi),%eax
0.39 : 4a0db7: 3c 20 cmp $0x20,%al
0.00 : 4a0db9: 74 65 je 4a0e20 <decode_tree_entry+0x80>
: return NULL;
:
: while ((c = *str++) != ' ') {
0.06 : 4a0dbb: 89 c2 mov %eax,%edx
: if (c < '0' || c > '7')
1.99 : 4a0dbd: 31 ed xor %ebp,%ebp
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
1.74 : 4a0dbf: 48 8d 5e 01 lea 0x1(%rsi),%rbx
: if (c < '0' || c > '7')
0.00 : 4a0dc3: 8d 42 d0 lea -0x30(%rdx),%eax
0.17 : 4a0dc6: 3c 07 cmp $0x7,%al
0.00 : 4a0dc8: 76 0d jbe 4a0dd7 <decode_tree_entry+0x37>
0.00 : 4a0dca: eb 54 jmp 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dcc: 0f 1f 40 00 nopl 0x0(%rax)
16.57 : 4a0dd0: 8d 42 d0 lea -0x30(%rdx),%eax
0.14 : 4a0dd3: 3c 07 cmp $0x7,%al
0.00 : 4a0dd5: 77 49 ja 4a0e20 <decode_tree_entry+0x80>
: return NULL;
: mode = (mode << 3) + (c - '0');
3.12 : 4a0dd7: 0f b6 c2 movzbl %dl,%eax
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
0.00 : 4a0dda: 0f b6 13 movzbl (%rbx),%edx
16.74 : 4a0ddd: 48 83 c3 01 add $0x1,%rbx
: if (c < '0' || c > '7')
: return NULL;
: mode = (mode << 3) + (c - '0');
The first column is the percentage of samples that arrived on that
particular line - relative to the total cost of the function.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 13:48:52 +00:00
|
|
|
obj_start = sym.st_value;
|
|
|
|
|
2009-05-28 17:55:04 +00:00
|
|
|
sym.st_value -= shdr.sh_addr - shdr.sh_offset;
|
|
|
|
|
|
|
|
f = symbol__new(sym.st_value, sym.st_size,
|
2009-05-28 17:55:13 +00:00
|
|
|
elf_sym__name(&sym, symstrs),
|
perf_counter tools: Add 'perf annotate' feature
Add new perf sub-command to display annotated source code:
$ perf annotate decode_tree_entry
------------------------------------------------
Percent | Source code & Disassembly of /home/mingo/git/git
------------------------------------------------
:
: /home/mingo/git/git: file format elf64-x86-64
:
:
: Disassembly of section .text:
:
: 00000000004a0da0 <decode_tree_entry>:
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
3.82 : 4a0da0: 41 54 push %r12
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.17 : 4a0da2: 48 83 fa 17 cmp $0x17,%rdx
: *modep = mode;
: return str;
: }
:
: static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
: {
0.00 : 4a0da6: 49 89 fc mov %rdi,%r12
0.00 : 4a0da9: 55 push %rbp
3.37 : 4a0daa: 53 push %rbx
: const char *path;
: unsigned int mode, len;
:
: if (size < 24 || buf[size - 21])
0.08 : 4a0dab: 76 73 jbe 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dad: 80 7c 16 eb 00 cmpb $0x0,-0x15(%rsi,%rdx,1)
3.48 : 4a0db2: 75 6c jne 4a0e20 <decode_tree_entry+0x80>
: static const char *get_mode(const char *str, unsigned int *modep)
: {
: unsigned char c;
: unsigned int mode = 0;
:
: if (*str == ' ')
1.94 : 4a0db4: 0f b6 06 movzbl (%rsi),%eax
0.39 : 4a0db7: 3c 20 cmp $0x20,%al
0.00 : 4a0db9: 74 65 je 4a0e20 <decode_tree_entry+0x80>
: return NULL;
:
: while ((c = *str++) != ' ') {
0.06 : 4a0dbb: 89 c2 mov %eax,%edx
: if (c < '0' || c > '7')
1.99 : 4a0dbd: 31 ed xor %ebp,%ebp
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
1.74 : 4a0dbf: 48 8d 5e 01 lea 0x1(%rsi),%rbx
: if (c < '0' || c > '7')
0.00 : 4a0dc3: 8d 42 d0 lea -0x30(%rdx),%eax
0.17 : 4a0dc6: 3c 07 cmp $0x7,%al
0.00 : 4a0dc8: 76 0d jbe 4a0dd7 <decode_tree_entry+0x37>
0.00 : 4a0dca: eb 54 jmp 4a0e20 <decode_tree_entry+0x80>
0.00 : 4a0dcc: 0f 1f 40 00 nopl 0x0(%rax)
16.57 : 4a0dd0: 8d 42 d0 lea -0x30(%rdx),%eax
0.14 : 4a0dd3: 3c 07 cmp $0x7,%al
0.00 : 4a0dd5: 77 49 ja 4a0e20 <decode_tree_entry+0x80>
: return NULL;
: mode = (mode << 3) + (c - '0');
3.12 : 4a0dd7: 0f b6 c2 movzbl %dl,%eax
: unsigned int mode = 0;
:
: if (*str == ' ')
: return NULL;
:
: while ((c = *str++) != ' ') {
0.00 : 4a0dda: 0f b6 13 movzbl (%rbx),%edx
16.74 : 4a0ddd: 48 83 c3 01 add $0x1,%rbx
: if (c < '0' || c > '7')
: return NULL;
: mode = (mode << 3) + (c - '0');
The first column is the percentage of samples that arrived on that
particular line - relative to the total cost of the function.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 13:48:52 +00:00
|
|
|
self->sym_priv_size, obj_start, verbose);
|
2009-05-28 17:55:04 +00:00
|
|
|
if (!f)
|
|
|
|
goto out_elf_end;
|
|
|
|
|
2009-05-28 17:55:26 +00:00
|
|
|
if (filter && filter(self, f))
|
|
|
|
symbol__delete(f, self->sym_priv_size);
|
|
|
|
else {
|
|
|
|
dso__insert_symbol(self, f);
|
|
|
|
nr++;
|
|
|
|
}
|
2009-05-28 17:55:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
err = nr;
|
|
|
|
out_elf_end:
|
|
|
|
elf_end(elf);
|
|
|
|
out_close:
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
2009-06-04 12:13:04 +00:00
|
|
|
int dso__load(struct dso *self, symbol_filter_t filter, int verbose)
|
2009-05-28 17:55:04 +00:00
|
|
|
{
|
|
|
|
int size = strlen(self->name) + sizeof("/usr/lib/debug%s.debug");
|
|
|
|
char *name = malloc(size);
|
|
|
|
int variant = 0;
|
|
|
|
int ret = -1;
|
|
|
|
int fd;
|
|
|
|
|
|
|
|
if (!name)
|
|
|
|
return -1;
|
|
|
|
|
2009-06-08 18:12:48 +00:00
|
|
|
if (strncmp(self->name, "/tmp/perf-", 10) == 0)
|
|
|
|
return dso__load_perf_map(self, filter, verbose);
|
|
|
|
|
2009-05-28 17:55:04 +00:00
|
|
|
more:
|
|
|
|
do {
|
|
|
|
switch (variant) {
|
|
|
|
case 0: /* Fedora */
|
|
|
|
snprintf(name, size, "/usr/lib/debug%s.debug", self->name);
|
|
|
|
break;
|
|
|
|
case 1: /* Ubuntu */
|
|
|
|
snprintf(name, size, "/usr/lib/debug%s", self->name);
|
|
|
|
break;
|
|
|
|
case 2: /* Sane people */
|
|
|
|
snprintf(name, size, "%s", self->name);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
variant++;
|
|
|
|
|
|
|
|
fd = open(name, O_RDONLY);
|
|
|
|
} while (fd < 0);
|
|
|
|
|
2009-06-04 12:13:04 +00:00
|
|
|
ret = dso__load_sym(self, fd, name, filter, verbose);
|
2009-05-28 17:55:04 +00:00
|
|
|
close(fd);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Some people seem to have debuginfo files _WITHOUT_ debug info!?!?
|
|
|
|
*/
|
|
|
|
if (!ret)
|
|
|
|
goto more;
|
|
|
|
|
|
|
|
out:
|
|
|
|
free(name);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2009-05-28 17:55:26 +00:00
|
|
|
static int dso__load_vmlinux(struct dso *self, const char *vmlinux,
|
2009-06-04 12:13:04 +00:00
|
|
|
symbol_filter_t filter, int verbose)
|
2009-05-28 17:55:04 +00:00
|
|
|
{
|
|
|
|
int err, fd = open(vmlinux, O_RDONLY);
|
|
|
|
|
|
|
|
if (fd < 0)
|
|
|
|
return -1;
|
|
|
|
|
2009-06-04 12:13:04 +00:00
|
|
|
err = dso__load_sym(self, fd, vmlinux, filter, verbose);
|
2009-05-28 17:55:04 +00:00
|
|
|
close(fd);
|
|
|
|
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
2009-06-04 12:13:04 +00:00
|
|
|
int dso__load_kernel(struct dso *self, const char *vmlinux,
|
|
|
|
symbol_filter_t filter, int verbose)
|
2009-05-28 17:55:19 +00:00
|
|
|
{
|
|
|
|
int err = -1;
|
|
|
|
|
|
|
|
if (vmlinux)
|
2009-06-04 12:13:04 +00:00
|
|
|
err = dso__load_vmlinux(self, vmlinux, filter, verbose);
|
2009-05-28 17:55:19 +00:00
|
|
|
|
|
|
|
if (err)
|
2009-06-04 12:13:04 +00:00
|
|
|
err = dso__load_kallsyms(self, filter, verbose);
|
2009-05-28 17:55:19 +00:00
|
|
|
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
2009-05-28 17:55:04 +00:00
|
|
|
void symbol__init(void)
|
|
|
|
{
|
|
|
|
elf_version(EV_CURRENT);
|
|
|
|
}
|