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perf callchain: Move callchain specific routines from util.[ch]

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Where they belong, no point in leaving those in the generic "util"
files.

Link: http://lkml.kernel.org/n/tip-ljx3iiip1hlfa7a7apjem7ph@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2017-04-19 18:38:33 -03:00
parent 611f0afee0
commit 56e2e05644
4 changed files with 116 additions and 108 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

103
tools/perf/util/callchain.c
View File

@ -24,6 +24,21 @@
#include "machine.h"
#include "callchain.h"
#define CALLCHAIN_PARAM_DEFAULT \
.mode = CHAIN_GRAPH_ABS, \
.min_percent = 0.5, \
.order = ORDER_CALLEE, \
.key = CCKEY_FUNCTION, \
.value = CCVAL_PERCENT, \
struct callchain_param callchain_param = {
CALLCHAIN_PARAM_DEFAULT
};
struct callchain_param callchain_param_default = {
CALLCHAIN_PARAM_DEFAULT
};
__thread struct callchain_cursor callchain_cursor;
int parse_callchain_record_opt(const char *arg, struct callchain_param *param)
@ -113,6 +128,32 @@ static int parse_callchain_value(const char *value)
return -1;
}
static int get_stack_size(const char *str, unsigned long *_size)
{
char *endptr;
unsigned long size;
unsigned long max_size = round_down(USHRT_MAX, sizeof(u64));
size = strtoul(str, &endptr, 0);
do {
if (*endptr)
break;
size = round_up(size, sizeof(u64));
if (!size || size > max_size)
break;
*_size = size;
return 0;
} while (0);
pr_err("callchain: Incorrect stack dump size (max %ld): %s\n",
max_size, str);
return -1;
}
static int
__parse_callchain_report_opt(const char *arg, bool allow_record_opt)
{
@ -196,6 +237,68 @@ int parse_callchain_top_opt(const char *arg)
return __parse_callchain_report_opt(arg, true);
}
int parse_callchain_record(const char *arg, struct callchain_param *param)
{
char *tok, *name, *saveptr = NULL;
char *buf;
int ret = -1;
/* We need buffer that we know we can write to. */
buf = malloc(strlen(arg) + 1);
if (!buf)
return -ENOMEM;
strcpy(buf, arg);
tok = strtok_r((char *)buf, ",", &saveptr);
name = tok ? : (char *)buf;
do {
/* Framepointer style */
if (!strncmp(name, "fp", sizeof("fp"))) {
if (!strtok_r(NULL, ",", &saveptr)) {
param->record_mode = CALLCHAIN_FP;
ret = 0;
} else
pr_err("callchain: No more arguments "
"needed for --call-graph fp\n");
break;
/* Dwarf style */
} else if (!strncmp(name, "dwarf", sizeof("dwarf"))) {
const unsigned long default_stack_dump_size = 8192;
ret = 0;
param->record_mode = CALLCHAIN_DWARF;
param->dump_size = default_stack_dump_size;
tok = strtok_r(NULL, ",", &saveptr);
if (tok) {
unsigned long size = 0;
ret = get_stack_size(tok, &size);
param->dump_size = size;
}
} else if (!strncmp(name, "lbr", sizeof("lbr"))) {
if (!strtok_r(NULL, ",", &saveptr)) {
param->record_mode = CALLCHAIN_LBR;
ret = 0;
} else
pr_err("callchain: No more arguments "
"needed for --call-graph lbr\n");
break;
} else {
pr_err("callchain: Unknown --call-graph option "
"value: %s\n", arg);
break;
}
} while (0);
free(buf);
return ret;
}
int perf_callchain_config(const char *var, const char *value)
{
char *endptr;

13
tools/perf/util/python.c
View File

@ -4,12 +4,25 @@
#include <poll.h>
#include <linux/err.h>
#include "evlist.h"
#include "callchain.h"
#include "evsel.h"
#include "event.h"
#include "cpumap.h"
#include "print_binary.h"
#include "thread_map.h"
/*
* Provide these two so that we don't have to link against callchain.c and
* start dragging hist.c, etc.
*/
struct callchain_param callchain_param;
int parse_callchain_record(const char *arg __maybe_unused,
struct callchain_param *param __maybe_unused)
{
return 0;
}
/*
* Support debug printing even though util/debug.c is not linked. That means
* implementing 'verbose' and 'eprintf'.

104
tools/perf/util/util.c
View File

@ -17,24 +17,8 @@
#include <linux/log2.h>
#include <linux/time64.h>
#include <unistd.h>
#include "callchain.h"
#include "strlist.h"
#define CALLCHAIN_PARAM_DEFAULT \
.mode = CHAIN_GRAPH_ABS, \
.min_percent = 0.5, \
.order = ORDER_CALLEE, \
.key = CCKEY_FUNCTION, \
.value = CCVAL_PERCENT, \
struct callchain_param callchain_param = {
CALLCHAIN_PARAM_DEFAULT
};
struct callchain_param callchain_param_default = {
CALLCHAIN_PARAM_DEFAULT
};
/*
* XXX We need to find a better place for these things...
*/
@ -377,94 +361,6 @@ unsigned long parse_tag_value(const char *str, struct parse_tag *tags)
return (unsigned long) -1;
}
int get_stack_size(const char *str, unsigned long *_size)
{
char *endptr;
unsigned long size;
unsigned long max_size = round_down(USHRT_MAX, sizeof(u64));
size = strtoul(str, &endptr, 0);
do {
if (*endptr)
break;
size = round_up(size, sizeof(u64));
if (!size || size > max_size)
break;
*_size = size;
return 0;
} while (0);
pr_err("callchain: Incorrect stack dump size (max %ld): %s\n",
max_size, str);
return -1;
}
int parse_callchain_record(const char *arg, struct callchain_param *param)
{
char *tok, *name, *saveptr = NULL;
char *buf;
int ret = -1;
/* We need buffer that we know we can write to. */
buf = malloc(strlen(arg) + 1);
if (!buf)
return -ENOMEM;
strcpy(buf, arg);
tok = strtok_r((char *)buf, ",", &saveptr);
name = tok ? : (char *)buf;
do {
/* Framepointer style */
if (!strncmp(name, "fp", sizeof("fp"))) {
if (!strtok_r(NULL, ",", &saveptr)) {
param->record_mode = CALLCHAIN_FP;
ret = 0;
} else
pr_err("callchain: No more arguments "
"needed for --call-graph fp\n");
break;
/* Dwarf style */
} else if (!strncmp(name, "dwarf", sizeof("dwarf"))) {
const unsigned long default_stack_dump_size = 8192;
ret = 0;
param->record_mode = CALLCHAIN_DWARF;
param->dump_size = default_stack_dump_size;
tok = strtok_r(NULL, ",", &saveptr);
if (tok) {
unsigned long size = 0;
ret = get_stack_size(tok, &size);
param->dump_size = size;
}
} else if (!strncmp(name, "lbr", sizeof("lbr"))) {
if (!strtok_r(NULL, ",", &saveptr)) {
param->record_mode = CALLCHAIN_LBR;
ret = 0;
} else
pr_err("callchain: No more arguments "
"needed for --call-graph lbr\n");
break;
} else {
pr_err("callchain: Unknown --call-graph option "
"value: %s\n", arg);
break;
}
} while (0);
free(buf);
return ret;
}
int perf_event_paranoid(void)
{
int value;

4
tools/perf/util/util.h
View File

@ -17,7 +17,6 @@
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <limits.h>
#include <sys/param.h>
#include <sys/types.h>
#include <assert.h>
@ -25,7 +24,6 @@
#include <poll.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <linux/kernel.h>
#include <linux/types.h>
extern char buildid_dir[];
@ -99,8 +97,6 @@ void mem_bswap_32(void *src, int byte_size);
bool find_process(const char *name);
int get_stack_size(const char *str, unsigned long *_size);
int fetch_kernel_version(unsigned int *puint,
char *str, size_t str_sz);
#define KVER_VERSION(x) (((x) >> 16) & 0xff)