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yaml
---
r: 169518
b: refs/heads/master
c: db9f11e
h: refs/heads/master
v: v3
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Frederic Weisbecker authored and Ingo Molnar committed Oct 19, 2009
1 parent f6d2d26 commit fcf3354
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Showing 5 changed files with 21 additions and 23 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 2ba0825075e76236d22a20decd8e2346a99faabe
refs/heads/master: db9f11e36d0125a5e3e595ea9ef2e4b89f7e8737
22 changes: 9 additions & 13 deletions trunk/tools/perf/util/header.c
Original file line number Diff line number Diff line change
Expand Up @@ -8,8 +8,6 @@
#include "../perf.h"
#include "trace-event.h"

#include <linux/bitmap.h>

/*
* Create new perf.data header attribute:
*/
Expand Down Expand Up @@ -143,12 +141,12 @@ struct perf_file_header {
struct perf_file_section attrs;
struct perf_file_section data;
struct perf_file_section event_types;
feat_mask_t adds_features;
DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
};

void perf_header__feat_trace_info(struct perf_header *header)
{
set_bit(HEADER_TRACE_INFO, perf_header__adds_mask(header));
set_bit(HEADER_TRACE_INFO, header->adds_features);
}

static void do_write(int fd, void *buf, size_t size)
Expand All @@ -168,7 +166,7 @@ static void perf_header__adds_write(struct perf_header *self, int fd)
{
struct perf_file_section trace_sec;
u64 cur_offset = lseek(fd, 0, SEEK_CUR);
unsigned long *feat_mask = perf_header__adds_mask(self);
unsigned long *feat_mask = self->adds_features;

if (test_bit(HEADER_TRACE_INFO, feat_mask)) {
/* Write trace info */
Expand Down Expand Up @@ -250,7 +248,7 @@ void perf_header__write(struct perf_header *self, int fd)
},
};

memcpy(&f_header.adds_features, &self->adds_features, sizeof(feat_mask_t));
memcpy(&f_header.adds_features, &self->adds_features, sizeof(self->adds_features));

lseek(fd, 0, SEEK_SET);
do_write(fd, &f_header, sizeof(f_header));
Expand All @@ -276,7 +274,7 @@ static void do_read(int fd, void *buf, size_t size)

static void perf_header__adds_read(struct perf_header *self, int fd)
{
const unsigned long *feat_mask = perf_header__adds_mask(self);
const unsigned long *feat_mask = self->adds_features;

if (test_bit(HEADER_TRACE_INFO, feat_mask)) {
struct perf_file_section trace_sec;
Expand Down Expand Up @@ -306,11 +304,9 @@ struct perf_header *perf_header__read(int fd)

if (f_header.size != sizeof(f_header)) {
/* Support the previous format */
if (f_header.size == offsetof(typeof(f_header), adds_features)) {
unsigned long *mask = (unsigned long *)(void *)
&f_header.adds_features;
bitmap_zero(mask, HEADER_FEAT_BITS);
} else
if (f_header.size == offsetof(typeof(f_header), adds_features))
bitmap_zero(f_header.adds_features, HEADER_FEAT_BITS);
else
die("incompatible file format");
}
nr_attrs = f_header.attrs.size / sizeof(f_attr);
Expand Down Expand Up @@ -346,7 +342,7 @@ struct perf_header *perf_header__read(int fd)
event_count = f_header.event_types.size / sizeof(struct perf_trace_event_type);
}

memcpy(&self->adds_features, &f_header.adds_features, sizeof(feat_mask_t));
memcpy(&self->adds_features, &f_header.adds_features, sizeof(f_header.adds_features));

perf_header__adds_read(self, fd);

Expand Down
11 changes: 3 additions & 8 deletions trunk/tools/perf/util/header.h
Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,8 @@
#include <sys/types.h>
#include "types.h"

#include <linux/bitmap.h>

struct perf_header_attr {
struct perf_event_attr attr;
int ids, size;
Expand All @@ -16,8 +18,6 @@ struct perf_header_attr {

#define HEADER_FEAT_BITS 256

typedef typeof(u64[HEADER_FEAT_BITS / 8]) feat_mask_t;

struct perf_header {
int frozen;
int attrs, size;
Expand All @@ -27,14 +27,9 @@ struct perf_header {
u64 data_size;
u64 event_offset;
u64 event_size;
feat_mask_t adds_features;
DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
};

static inline unsigned long *perf_header__adds_mask(struct perf_header *self)
{
return (unsigned long *)(void *)&self->adds_features;
}

struct perf_header *perf_header__read(int fd);
void perf_header__write(struct perf_header *self, int fd);

Expand Down
1 change: 1 addition & 0 deletions trunk/tools/perf/util/include/asm/asm-offsets.h
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
/* stub */
8 changes: 7 additions & 1 deletion trunk/tools/perf/util/include/linux/types.h
Original file line number Diff line number Diff line change
@@ -1 +1,7 @@
/* stub */
#ifndef _PERF_LINUX_TYPES_H_
#define _PERF_LINUX_TYPES_H_

#define DECLARE_BITMAP(name,bits) \
unsigned long name[BITS_TO_LONGS(bits)]

#endif

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