#include "debug.h"
#include <api/fs/fs.h>
#include <sys/mman.h>
+#include <sys/stat.h>
#include <sys/utsname.h>
-#ifdef HAVE_BACKTRACE_SUPPORT
-#include <execinfo.h>
-#endif
#include <dirent.h>
#include <inttypes.h>
#include <signal.h>
#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...
*/
return copyfile_mode(from, to, 0755);
}
-unsigned long convert_unit(unsigned long value, char *unit)
-{
- *unit = ' ';
-
- if (value > 1000) {
- value /= 1000;
- *unit = 'K';
- }
-
- if (value > 1000) {
- value /= 1000;
- *unit = 'M';
- }
-
- if (value > 1000) {
- value /= 1000;
- *unit = 'G';
- }
-
- return value;
-}
-
static ssize_t ion(bool is_read, int fd, void *buf, size_t n)
{
void *buf_start = buf;
return p - ptr;
}
-/* Obtain a backtrace and print it to stdout. */
-#ifdef HAVE_BACKTRACE_SUPPORT
-void dump_stack(void)
-{
- void *array[16];
- size_t size = backtrace(array, ARRAY_SIZE(array));
- char **strings = backtrace_symbols(array, size);
- size_t i;
-
- printf("Obtained %zd stack frames.\n", size);
-
- for (i = 0; i < size; i++)
- printf("%s\n", strings[i]);
-
- free(strings);
-}
-#else
-void dump_stack(void) {}
-#endif
-
-void sighandler_dump_stack(int sig)
-{
- psignal(sig, "perf");
- dump_stack();
- signal(sig, SIG_DFL);
- raise(sig);
-}
-
-int timestamp__scnprintf_usec(u64 timestamp, char *buf, size_t sz)
-{
- u64 sec = timestamp / NSEC_PER_SEC;
- u64 usec = (timestamp % NSEC_PER_SEC) / NSEC_PER_USEC;
-
- return scnprintf(buf, sz, "%"PRIu64".%06"PRIu64, sec, usec);
-}
-
unsigned long parse_tag_value(const char *str, struct parse_tag *tags)
{
struct parse_tag *i = 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;
-}
-
-const char *get_filename_for_perf_kvm(void)
-{
- const char *filename;
-
- if (perf_host && !perf_guest)
- filename = strdup("perf.data.host");
- else if (!perf_host && perf_guest)
- filename = strdup("perf.data.guest");
- else
- filename = strdup("perf.data.kvm");
-
- return filename;
-}
-
int perf_event_paranoid(void)
{
int value;
return tip;
}
-
-int fetch_current_timestamp(char *buf, size_t sz)
-{
- struct timeval tv;
- struct tm tm;
- char dt[32];
-
- if (gettimeofday(&tv, NULL) || !localtime_r(&tv.tv_sec, &tm))
- return -1;
-
- if (!strftime(dt, sizeof(dt), "%Y%m%d%H%M%S", &tm))
- return -1;
-
- scnprintf(buf, sz, "%s%02u", dt, (unsigned)tv.tv_usec / 10000);
-
- return 0;
-}
-
-int unit_number__scnprintf(char *buf, size_t size, u64 n)
-{
- char unit[4] = "BKMG";
- int i = 0;
-
- while (((n / 1024) > 1) && (i < 3)) {
- n /= 1024;
- i++;
- }
-
- return scnprintf(buf, size, "%" PRIu64 "%c", n, unit[i]);
-}
projects / karo-tx-linux.git / blobdiff