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-rw-r--r--tools/perf/Documentation/perf-report.txt6
-rw-r--r--tools/perf/Documentation/perf-script.txt7
-rw-r--r--tools/perf/arch/powerpc/Makefile1
-rw-r--r--tools/perf/arch/powerpc/util/header.c36
-rw-r--r--tools/perf/arch/x86/Makefile1
-rw-r--r--tools/perf/arch/x86/util/header.c59
-rw-r--r--tools/perf/builtin-record.c15
-rw-r--r--tools/perf/builtin-report.c6
-rw-r--r--tools/perf/builtin-script.c6
-rw-r--r--tools/perf/builtin.h1
-rw-r--r--tools/perf/perf.h11
-rw-r--r--tools/perf/util/header.c1145
-rw-r--r--tools/perf/util/header.h29
-rw-r--r--tools/perf/util/session.c19
-rw-r--r--tools/perf/util/session.h1
15 files changed, 1308 insertions, 35 deletions
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 4e82c19cbbb..4ed17072ea8 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -139,6 +139,12 @@ OPTIONS
--show-total-period:: Show a column with the sum of periods.
+-I::
+--show-info::
+ Display extended information about the perf.data file. This adds
+ information which may be very large and thus may clutter the display.
+ It currently includes: cpu and numa topology of the host system.
+
SEE ALSO
--------
linkperf:perf-stat[1]
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index db017867d9e..dec87ecb530 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -188,6 +188,13 @@ OPTIONS
CPUs are specified with -: 0-2. Default is to report samples on all
CPUs.
+-I::
+--show-info::
+ Display extended information about the perf.data file. This adds
+ information which may be very large and thus may clutter the display.
+ It currently includes: cpu and numa topology of the host system.
+ It can only be used with the perf script report mode.
+
SEE ALSO
--------
linkperf:perf-record[1], linkperf:perf-script-perl[1],
diff --git a/tools/perf/arch/powerpc/Makefile b/tools/perf/arch/powerpc/Makefile
index 15130b50dfe..744e629797b 100644
--- a/tools/perf/arch/powerpc/Makefile
+++ b/tools/perf/arch/powerpc/Makefile
@@ -2,3 +2,4 @@ ifndef NO_DWARF
PERF_HAVE_DWARF_REGS := 1
LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
endif
+LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/header.o
diff --git a/tools/perf/arch/powerpc/util/header.c b/tools/perf/arch/powerpc/util/header.c
new file mode 100644
index 00000000000..eba80c29294
--- /dev/null
+++ b/tools/perf/arch/powerpc/util/header.c
@@ -0,0 +1,36 @@
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../../util/header.h"
+
+#define __stringify_1(x) #x
+#define __stringify(x) __stringify_1(x)
+
+#define mfspr(rn) ({unsigned long rval; \
+ asm volatile("mfspr %0," __stringify(rn) \
+ : "=r" (rval)); rval; })
+
+#define SPRN_PVR 0x11F /* Processor Version Register */
+#define PVR_VER(pvr) (((pvr) >> 16) & 0xFFFF) /* Version field */
+#define PVR_REV(pvr) (((pvr) >> 0) & 0xFFFF) /* Revison field */
+
+int
+get_cpuid(char *buffer, size_t sz)
+{
+ unsigned long pvr;
+ int nb;
+
+ pvr = mfspr(SPRN_PVR);
+
+ nb = snprintf(buffer, sz, "%lu,%lu$", PVR_VER(pvr), PVR_REV(pvr));
+
+ /* look for end marker to ensure the entire data fit */
+ if (strchr(buffer, '$')) {
+ buffer[nb-1] = '\0';
+ return 0;
+ }
+ return -1;
+}
diff --git a/tools/perf/arch/x86/Makefile b/tools/perf/arch/x86/Makefile
index 15130b50dfe..744e629797b 100644
--- a/tools/perf/arch/x86/Makefile
+++ b/tools/perf/arch/x86/Makefile
@@ -2,3 +2,4 @@ ifndef NO_DWARF
PERF_HAVE_DWARF_REGS := 1
LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
endif
+LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/header.o
diff --git a/tools/perf/arch/x86/util/header.c b/tools/perf/arch/x86/util/header.c
new file mode 100644
index 00000000000..f94006068d2
--- /dev/null
+++ b/tools/perf/arch/x86/util/header.c
@@ -0,0 +1,59 @@
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../../util/header.h"
+
+static inline void
+cpuid(unsigned int op, unsigned int *a, unsigned int *b, unsigned int *c,
+ unsigned int *d)
+{
+ __asm__ __volatile__ (".byte 0x53\n\tcpuid\n\t"
+ "movl %%ebx, %%esi\n\t.byte 0x5b"
+ : "=a" (*a),
+ "=S" (*b),
+ "=c" (*c),
+ "=d" (*d)
+ : "a" (op));
+}
+
+int
+get_cpuid(char *buffer, size_t sz)
+{
+ unsigned int a, b, c, d, lvl;
+ int family = -1, model = -1, step = -1;
+ int nb;
+ char vendor[16];
+
+ cpuid(0, &lvl, &b, &c, &d);
+ strncpy(&vendor[0], (char *)(&b), 4);
+ strncpy(&vendor[4], (char *)(&d), 4);
+ strncpy(&vendor[8], (char *)(&c), 4);
+ vendor[12] = '\0';
+
+ if (lvl >= 1) {
+ cpuid(1, &a, &b, &c, &d);
+
+ family = (a >> 8) & 0xf; /* bits 11 - 8 */
+ model = (a >> 4) & 0xf; /* Bits 7 - 4 */
+ step = a & 0xf;
+
+ /* extended family */
+ if (family == 0xf)
+ family += (a >> 20) & 0xff;
+
+ /* extended model */
+ if (family >= 0x6)
+ model += ((a >> 16) & 0xf) << 4;
+ }
+ nb = snprintf(buffer, sz, "%s,%u,%u,%u$", vendor, family, model, step);
+
+ /* look for end marker to ensure the entire data fit */
+ if (strchr(buffer, '$')) {
+ buffer[nb-1] = '\0';
+ return 0;
+ }
+ return -1;
+}
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index dd6467872f6..f82480fa7f2 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -529,6 +529,19 @@ static int __cmd_record(int argc, const char **argv)
if (have_tracepoints(&evsel_list->entries))
perf_header__set_feat(&session->header, HEADER_TRACE_INFO);
+ perf_header__set_feat(&session->header, HEADER_HOSTNAME);
+ perf_header__set_feat(&session->header, HEADER_OSRELEASE);
+ perf_header__set_feat(&session->header, HEADER_ARCH);
+ perf_header__set_feat(&session->header, HEADER_CPUDESC);
+ perf_header__set_feat(&session->header, HEADER_NRCPUS);
+ perf_header__set_feat(&session->header, HEADER_EVENT_DESC);
+ perf_header__set_feat(&session->header, HEADER_CMDLINE);
+ perf_header__set_feat(&session->header, HEADER_VERSION);
+ perf_header__set_feat(&session->header, HEADER_CPU_TOPOLOGY);
+ perf_header__set_feat(&session->header, HEADER_TOTAL_MEM);
+ perf_header__set_feat(&session->header, HEADER_NUMA_TOPOLOGY);
+ perf_header__set_feat(&session->header, HEADER_CPUID);
+
/* 512 kiB: default amount of unprivileged mlocked memory */
if (mmap_pages == UINT_MAX)
mmap_pages = (512 * 1024) / page_size;
@@ -800,6 +813,8 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
int err = -ENOMEM;
struct perf_evsel *pos;
+ perf_header__set_cmdline(argc, argv);
+
evsel_list = perf_evlist__new(NULL, NULL);
if (evsel_list == NULL)
return -ENOMEM;
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index e7140c6289b..66fe822b181 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -40,6 +40,7 @@ static char const *input_name = "perf.data";
static bool force, use_tui, use_stdio;
static bool hide_unresolved;
static bool dont_use_callchains;
+static bool show_full_info;
static bool show_threads;
static struct perf_read_values show_threads_values;
@@ -273,6 +274,9 @@ static int __cmd_report(void)
goto out_delete;
}
+ if (use_browser <= 0)
+ perf_session__fprintf_info(session, stdout, show_full_info);
+
if (show_threads)
perf_read_values_init(&show_threads_values);
@@ -485,6 +489,8 @@ static const struct option options[] = {
OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
"Look for files with symbols relative to this directory"),
OPT_STRING('c', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
+ OPT_BOOLEAN('I', "show-info", &show_full_info,
+ "Display extended information about perf.data file"),
OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
"Specify disassembler style (e.g. -M intel for intel syntax)"),
OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 09024ec2ab2..2f62a295226 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -22,6 +22,7 @@ static u64 last_timestamp;
static u64 nr_unordered;
extern const struct option record_options[];
static bool no_callchain;
+static bool show_full_info;
static const char *cpu_list;
static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
@@ -1083,7 +1084,8 @@ static const struct option options[] = {
"comma separated output fields prepend with 'type:'. Valid types: hw,sw,trace,raw. Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,addr",
parse_output_fields),
OPT_STRING('c', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
-
+ OPT_BOOLEAN('I', "show-info", &show_full_info,
+ "display extended information from perf.data file"),
OPT_END()
};
@@ -1268,6 +1270,8 @@ int cmd_script(int argc, const char **argv, const char *prefix __used)
return -1;
}
+ perf_session__fprintf_info(session, stdout, show_full_info);
+
if (!no_callchain)
symbol_conf.use_callchain = true;
else
diff --git a/tools/perf/builtin.h b/tools/perf/builtin.h
index 4702e2443a8..b382bd551aa 100644
--- a/tools/perf/builtin.h
+++ b/tools/perf/builtin.h
@@ -4,7 +4,6 @@
#include "util/util.h"
#include "util/strbuf.h"
-extern const char perf_version_string[];
extern const char perf_usage_string[];
extern const char perf_more_info_string[];
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index a5fc660c1f1..08b0b5e82a4 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -9,18 +9,21 @@ void get_term_dimensions(struct winsize *ws);
#include "../../arch/x86/include/asm/unistd.h"
#define rmb() asm volatile("lock; addl $0,0(%%esp)" ::: "memory")
#define cpu_relax() asm volatile("rep; nop" ::: "memory");
+#define CPUINFO_PROC "model name"
#endif
#if defined(__x86_64__)
#include "../../arch/x86/include/asm/unistd.h"
#define rmb() asm volatile("lfence" ::: "memory")
#define cpu_relax() asm volatile("rep; nop" ::: "memory");
+#define CPUINFO_PROC "model name"
#endif
#ifdef __powerpc__
#include "../../arch/powerpc/include/asm/unistd.h"
#define rmb() asm volatile ("sync" ::: "memory")
#define cpu_relax() asm volatile ("" ::: "memory");
+#define CPUINFO_PROC "cpu"
#endif
#ifdef __s390__
@@ -37,30 +40,35 @@ void get_term_dimensions(struct winsize *ws);
# define rmb() asm volatile("" ::: "memory")
#endif
#define cpu_relax() asm volatile("" ::: "memory")
+#define CPUINFO_PROC "cpu type"
#endif
#ifdef __hppa__
#include "../../arch/parisc/include/asm/unistd.h"
#define rmb() asm volatile("" ::: "memory")
#define cpu_relax() asm volatile("" ::: "memory");
+#define CPUINFO_PROC "cpu"
#endif
#ifdef __sparc__
#include "../../arch/sparc/include/asm/unistd.h"
#define rmb() asm volatile("":::"memory")
#define cpu_relax() asm volatile("":::"memory")
+#define CPUINFO_PROC "cpu"
#endif
#ifdef __alpha__
#include "../../arch/alpha/include/asm/unistd.h"
#define rmb() asm volatile("mb" ::: "memory")
#define cpu_relax() asm volatile("" ::: "memory")
+#define CPUINFO_PROC "cpu model"
#endif
#ifdef __ia64__
#include "../../arch/ia64/include/asm/unistd.h"
#define rmb() asm volatile ("mf" ::: "memory")
#define cpu_relax() asm volatile ("hint @pause" ::: "memory")
+#define CPUINFO_PROC "model name"
#endif
#ifdef __arm__
@@ -71,6 +79,7 @@ void get_term_dimensions(struct winsize *ws);
*/
#define rmb() ((void(*)(void))0xffff0fa0)()
#define cpu_relax() asm volatile("":::"memory")
+#define CPUINFO_PROC "Processor"
#endif
#ifdef __mips__
@@ -83,6 +92,7 @@ void get_term_dimensions(struct winsize *ws);
: /* no input */ \
: "memory")
#define cpu_relax() asm volatile("" ::: "memory")
+#define CPUINFO_PROC "cpu model"
#endif
#include <time.h>
@@ -171,5 +181,6 @@ struct ip_callchain {
};
extern bool perf_host, perf_guest;
+extern const char perf_version_string[];
#endif
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index b6c1ad123ca..f2ceb0f7d66 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -7,6 +7,7 @@
#include <stdlib.h>
#include <linux/list.h>
#include <linux/kernel.h>
+#include <sys/utsname.h>
#include "evlist.h"
#include "evsel.h"
@@ -17,12 +18,19 @@
#include "session.h"
#include "symbol.h"
#include "debug.h"
+#include "cpumap.h"
static bool no_buildid_cache = false;
static int event_count;
static struct perf_trace_event_type *events;
+static u32 header_argc;
+static const char **header_argv;
+
+static int dsos__write_buildid_table(struct perf_header *header, int fd);
+static int perf_session__cache_build_ids(struct perf_session *session);
+
int perf_header__push_event(u64 id, const char *name)
{
if (strlen(name) > MAX_EVENT_NAME)
@@ -110,6 +118,1020 @@ static int write_padded(int fd, const void *bf, size_t count,
return err;
}
+static int do_write_string(int fd, const char *str)
+{
+ u32 len, olen;
+ int ret;
+
+ olen = strlen(str) + 1;
+ len = ALIGN(olen, NAME_ALIGN);
+
+ /* write len, incl. \0 */
+ ret = do_write(fd, &len, sizeof(len));
+ if (ret < 0)
+ return ret;
+
+ return write_padded(fd, str, olen, len);
+}
+
+static char *do_read_string(int fd, struct perf_header *ph)
+{
+ ssize_t sz, ret;
+ u32 len;
+ char *buf;
+
+ sz = read(fd, &len, sizeof(len));
+ if (sz < (ssize_t)sizeof(len))
+ return NULL;
+
+ if (ph->needs_swap)
+ len = bswap_32(len);
+
+ buf = malloc(len);
+ if (!buf)
+ return NULL;
+
+ ret = read(fd, buf, len);
+ if (ret == (ssize_t)len) {
+ /*
+ * strings are padded by zeroes
+ * thus the actual strlen of buf
+ * may be less than len
+ */
+ return buf;
+ }
+
+ free(buf);
+ return NULL;
+}
+
+int
+perf_header__set_cmdline(int argc, const char **argv)
+{
+ int i;
+
+ header_argc = (u32)argc;
+
+ /* do not include NULL termination */
+ header_argv = calloc(argc, sizeof(char *));
+ if (!header_argv)
+ return -ENOMEM;
+
+ /*
+ * must copy argv contents because it gets moved
+ * around during option parsing
+ */
+ for (i = 0; i < argc ; i++)
+ header_argv[i] = argv[i];
+
+ return 0;
+}
+
+static int write_trace_info(int fd, struct perf_header *h __used,
+ struct perf_evlist *evlist)
+{
+ return read_tracing_data(fd, &evlist->entries);
+}
+
+
+static int write_build_id(int fd, struct perf_header *h,
+ struct perf_evlist *evlist __used)
+{
+ struct perf_session *session;
+ int err;
+
+ session = container_of(h, struct perf_session, header);
+
+ err = dsos__write_buildid_table(h, fd);
+ if (err < 0) {
+ pr_debug("failed to write buildid table\n");
+ return err;
+ }
+ if (!no_buildid_cache)
+ perf_session__cache_build_ids(session);
+
+ return 0;
+}
+
+static int write_hostname(int fd, struct perf_header *h __used,
+ struct perf_evlist *evlist __used)
+{
+ struct utsname uts;
+ int ret;
+
+ ret = uname(&uts);
+ if (ret < 0)
+ return -1;
+
+ return do_write_string(fd, uts.nodename);
+}
+
+static int write_osrelease(int fd, struct perf_header *h __used,
+ struct perf_evlist *evlist __used)
+{
+ struct utsname uts;
+ int ret;
+
+ ret = uname(&uts);
+ if (ret < 0)
+ return -1;
+
+ return do_write_string(fd, uts.release);
+}
+
+static int write_arch(int fd, struct perf_header *h __used,
+ struct perf_evlist *evlist __used)
+{
+ struct utsname uts;
+ int ret;
+
+ ret = uname(&uts);
+ if (ret < 0)
+ return -1;
+
+ return do_write_string(fd, uts.machine);
+}
+
+static int write_version(int fd, struct perf_header *h __used,
+ struct perf_evlist *evlist __used)
+{
+ return do_write_string(fd, perf_version_string);
+}
+
+static int write_cpudesc(int fd, struct perf_header *h __used,
+ struct perf_evlist *evlist __used)
+{
+#ifndef CPUINFO_PROC
+#define CPUINFO_PROC NULL
+#endif
+ FILE *file;
+ char *buf = NULL;
+ char *s, *p;
+ const char *search = CPUINFO_PROC;
+ size_t len = 0;
+ int ret = -1;
+
+ if (!search)
+ return -1;
+
+ file = fopen("/proc/cpuinfo", "r");
+ if (!file)
+ return -1;
+
+ while (getline(&buf, &len, file) > 0) {
+ ret = strncmp(buf, search, strlen(search));
+ if (!ret)
+ break;
+ }
+
+ if (ret)
+ goto done;
+
+ s = buf;
+
+ p = strchr(buf, ':');
+ if (p && *(p+1) == ' ' && *(p+2))
+ s = p + 2;
+ p = strchr(s, '\n');
+ if (p)
+ *p = '\0';
+
+ /* squash extra space characters (branding string) */
+ p = s;
+ while (*p) {
+ if (isspace(*p)) {
+ char *r = p + 1;
+ char *q = r;
+ *p = ' ';
+ while (*q && isspace(*q))
+ q++;
+ if (q != (p+1))
+ while ((*r++ = *q++));
+ }
+ p++;
+ }
+ ret = do_write_string(fd, s);
+done:
+ free(buf);
+ fclose(file);
+ return ret;
+}
+
+static int write_nrcpus(int fd, struct perf_header *h __used,
+ struct perf_evlist *evlist __used)
+{
+ long nr;
+ u32 nrc, nra;
+ int ret;
+
+ nr = sysconf(_SC_NPROCESSORS_CONF);
+ if (nr < 0)
+ return -1;
+
+ nrc = (u32)(nr & UINT_MAX);
+
+ nr = sysconf(_SC_NPROCESSORS_ONLN);
+ if (nr < 0)
+ return -1;
+
+ nra = (u32)(nr & UINT_MAX);
+
+ ret = do_write(fd, &nrc, sizeof(nrc));
+ if (ret < 0)
+ return ret;
+
+ return do_write(fd, &nra, sizeof(nra));
+}
+
+static int write_event_desc(int fd, struct perf_header *h __used,
+ struct perf_evlist *evlist)
+{
+ struct perf_evsel *attr;
+ u32 nre = 0, nri, sz;
+ int ret;
+
+ list_for_each_entry(attr, &evlist->entries, node)
+ nre++;
+
+ /*
+ * write number of events
+ */
+ ret = do_write(fd, &nre, sizeof(nre));
+ if (ret < 0)
+ return ret;
+
+ /*
+ * size of perf_event_attr struct
+ */
+ sz = (u32)sizeof(attr->attr);
+ ret = do_write(fd, &sz, sizeof(sz));
+ if (ret < 0)
+ return ret;
+
+ list_for_each_entry(attr, &evlist->entries, node) {
+
+ ret = do_write(fd, &attr->attr, sz);
+ if (ret < 0)
+ return ret;
+ /*
+ * write number of unique id per event
+ * there is one id per instance of an event
+ *
+ * copy into an nri to be independent of the
+ * type of ids,
+ */
+ nri = attr->ids;
+ ret = do_write(fd, &nri, sizeof(nri));
+ if (ret < 0)
+ return ret;
+
+ /*
+ * write event string as passed on cmdline
+ */
+ ret = do_write_string(fd, attr->name);
+ if (ret < 0)
+ return ret;
+ /*
+ * write unique ids for this event
+ */
+ ret = do_write(fd, attr->id, attr->ids * sizeof(u64));
+ if (ret < 0)
+ return ret;
+ }
+ return 0;
+}
+
+static int write_cmdline(int fd, struct perf_header *h __used,
+ struct perf_evlist *evlist __used)
+{
+ char buf[MAXPATHLEN];
+ char proc[32];
+ u32 i, n;
+ int ret;
+
+ /*
+ * actual atual path to perf binary
+ */
+ sprintf(proc, "/proc/%d/exe", getpid());
+ ret = readlink(proc, buf, sizeof(buf));
+ if (ret <= 0)
+ return -1;
+
+ /* readlink() does not add null termination */
+ buf[ret] = '\0';
+
+ /* account for binary path */
+ n = header_argc + 1;
+
+ ret = do_write(fd, &n, sizeof(n));
+ if (ret < 0)
+ return ret;
+
+ ret = do_write_string(fd, buf);
+ if (ret < 0)
+ return ret;
+
+ for (i = 0 ; i < header_argc; i++) {
+ ret = do_write_string(fd, header_argv[i]);
+ if (ret < 0)
+ return ret;
+ }
+ return 0;
+}
+
+#define CORE_SIB_FMT \
+ "/sys/devices/system/cpu/cpu%d/topology/core_siblings_list"
+#define THRD_SIB_FMT \
+ "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list"
+
+struct cpu_topo {
+ u32 core_sib;
+ u32 thread_sib;
+ char **core_siblings;
+ char **thread_siblings;
+};
+
+static int build_cpu_topo(struct cpu_topo *tp, int cpu)
+{
+ FILE *fp;
+ char filename[MAXPATHLEN];
+ char *buf = NULL, *p;
+ size_t len = 0;
+ u32 i = 0;
+ int ret = -1;
+
+ sprintf(filename, CORE_SIB_FMT, cpu);
+ fp = fopen(filename, "r");
+ if (!fp)
+ return -1;
+
+ if (getline(&buf, &len, fp) <= 0)
+ goto done;
+
+ fclose(fp);
+
+ p = strchr(buf, '\n');
+ if (p)
+ *p = '\0';
+
+ for (i = 0; i < tp->core_sib; i++) {
+ if (!strcmp(buf, tp->core_siblings[i]))
+ break;
+ }
+ if (i == tp->core_sib) {
+ tp->core_siblings[i] = buf;
+ tp->core_sib++;
+ buf = NULL;
+ len = 0;
+ }
+
+ sprintf(filename, THRD_SIB_FMT, cpu);
+ fp = fopen(filename, "r");
+ if (!fp)
+ goto done;
+
+ if (getline(&buf, &len, fp) <= 0)
+ goto done;
+
+ p = strchr(buf, '\n');
+ if (p)
+ *p = '\0';
+
+ for (i = 0; i < tp->thread_sib; i++) {
+ if (!strcmp(buf, tp->thread_siblings[i]))
+ break;
+ }
+ if (i == tp->thread_sib) {
+ tp->thread_siblings[i] = buf;
+ tp->thread_sib++;
+ buf = NULL;
+ }
+ ret = 0;
+done:
+ if(fp)
+ fclose(fp);
+ free(buf);
+ return ret;
+}
+
+static void free_cpu_topo(struct cpu_topo *tp)
+{
+ u32 i;
+
+ if (!tp)
+ return;
+
+ for (i = 0 ; i < tp->core_sib; i++)
+ free(tp->core_siblings[i]);
+
+ for (i = 0 ; i < tp->thread_sib; i++)
+ free(tp->thread_siblings[i]);
+
+ free(tp);
+}
+
+static struct cpu_topo *build_cpu_topology(void)
+{
+ struct cpu_topo *tp;
+ void *addr;
+ u32 nr, i;
+ size_t sz;
+ long ncpus;
+ int ret = -1;
+
+ ncpus = sysconf(_SC_NPROCESSORS_CONF);
+ if (ncpus < 0)
+ return NULL;
+
+ nr = (u32)(ncpus & UINT_MAX);
+
+ sz = nr * sizeof(char *);
+
+ addr = calloc(1, sizeof(*tp) + 2 * sz);
+ if (!addr)
+ return NULL;
+
+ tp = addr;
+
+ addr += sizeof(*tp);
+ tp->core_siblings = addr;
+ addr += sz;
+ tp->thread_siblings = addr;
+
+ for (i = 0; i < nr; i++) {
+ ret = build_cpu_topo(tp, i);
+ if (ret < 0)
+ break;
+ }
+ if (ret) {
+ free_cpu_topo(tp);
+ tp = NULL;
+ }
+ return tp;
+}
+
+static int write_cpu_topology(int fd, struct perf_header *h __used,
+ struct perf_evlist *evlist __used)
+{
+ struct cpu_topo *tp;
+ u32 i;
+ int ret;
+
+ tp = build_cpu_topology();
+ if (!tp)
+ return -1;
+
+ ret = do_write(fd, &tp->core_sib, sizeof(tp->core_sib));
+ if (ret < 0)
+ goto done;
+
+ for (i = 0; i < tp->core_sib; i++) {
+ ret = do_write_string(fd, tp->core_siblings[i]);
+ if (ret < 0)
+ goto done;
+ }
+ ret = do_write(fd, &tp->thread_sib, sizeof(tp->thread_sib));
+ if (ret < 0)
+ goto done;
+
+ for (i = 0; i < tp->thread_sib; i++) {
+ ret = do_write_string(fd, tp->thread_siblings[i]);
+ if (ret < 0)
+ break;
+ }
+done:
+ free_cpu_topo(tp);
+ return ret;
+}
+
+
+
+static int write_total_mem(int fd, struct perf_header *h __used,
+ struct perf_evlist *evlist __used)
+{
+ char *buf = NULL;
+ FILE *fp;
+ size_t len = 0;
+ int ret = -1, n;
+ uint64_t mem;
+
+ fp = fopen("/proc/meminfo", "r");
+ if (!fp)
+ return -1;
+
+ while (getline(&buf, &len, fp) > 0) {
+ ret = strncmp(buf, "MemTotal:", 9);
+ if (!ret)
+ break;
+ }
+ if (!ret) {
+ n = sscanf(buf, "%*s %"PRIu64, &mem);
+ if (n == 1)
+ ret = do_write(fd, &mem, sizeof(mem));
+ }
+ free(buf);
+ fclose(fp);
+ return ret;
+}
+
+static int write_topo_node(int fd, int node)
+{
+ char str[MAXPATHLEN];
+ char field[32];
+ char *buf = NULL, *p;
+ size_t len = 0;
+ FILE *fp;
+ u64 mem_total, mem_free, mem;
+ int ret = -1;
+
+ sprintf(str, "/sys/devices/system/node/node%d/meminfo", node);
+ fp = fopen(str, "r");
+ if (!fp)
+ return -1;
+
+ while (getline(&buf, &len, fp) > 0) {
+ /* skip over invalid lines */
+ if (!strchr(buf, ':'))
+ continue;
+ if (sscanf(buf, "%*s %*d %s %"PRIu64, field, &mem) != 2)
+ goto done;
+ if (!strcmp(field, "MemTotal:"))
+ mem_total = mem;
+ if (!strcmp(field, "MemFree:"))
+ mem_free = mem;
+ }
+
+ fclose(fp);
+
+ ret = do_write(fd, &mem_total, sizeof(u64));
+ if (ret)
+ goto done;
+
+ ret = do_write(fd, &mem_free, sizeof(u64));
+ if (ret)
+ goto done;
+
+ ret = -1;
+ sprintf(str, "/sys/devices/system/node/node%d/cpulist", node);
+
+ fp = fopen(str, "r");
+ if (!fp)
+ goto done;
+
+ if (getline(&buf, &len, fp) <= 0)
+ goto done;
+
+ p = strchr(buf, '\n');
+ if (p)
+ *p = '\0';
+
+ ret = do_write_string(fd, buf);
+done:
+ free(buf);
+ fclose(fp);
+ return ret;
+}
+
+static int write_numa_topology(int fd, struct perf_header *h __used,
+ struct perf_evlist *evlist __used)
+{
+ char *buf = NULL;
+ size_t len = 0;
+ FILE *fp;
+ struct cpu_map *node_map = NULL;
+ char *c;
+ u32 nr, i, j;
+ int ret = -1;
+
+ fp = fopen("/sys/devices/system/node/online", "r");
+ if (!fp)
+ return -1;
+
+ if (getline(&buf, &len, fp) <= 0)
+ goto done;
+
+ c = strchr(buf, '\n');
+ if (c)
+ *c = '\0';
+
+ node_map = cpu_map__new(buf);
+ if (!node_map)
+ goto done;
+
+ nr = (u32)node_map->nr;
+
+ ret = do_write(fd, &nr, sizeof(nr));
+ if (ret < 0)
+ goto done;
+
+ for (i = 0; i < nr; i++) {
+ j = (u32)node_map->map[i];
+ ret = do_write(fd, &j, sizeof(j));
+ if (ret < 0)
+ break;
+
+ ret = write_topo_node(fd, i);
+ if (ret < 0)
+ break;
+ }
+done:
+ free(buf);
+ fclose(fp);
+ free(node_map);
+ return ret;
+}
+
+/*
+ * default get_cpuid(): nothing gets recorded
+ * actual implementation must be in arch/$(ARCH)/util/header.c
+ */
+int __attribute__((weak)) get_cpuid(char *buffer __used, size_t sz __used)
+{
+ return -1;
+}
+
+static int write_cpuid(int fd, struct perf_header *h __used,
+ struct perf_evlist *evlist __used)
+{
+ char buffer[64];
+ int ret;
+
+ ret = get_cpuid(buffer, sizeof(buffer));
+ if (!ret)
+ goto write_it;
+
+ return -1;
+write_it:
+ return do_write_string(fd, buffer);
+}
+
+static void print_hostname(struct perf_header *ph, int fd, FILE *fp)
+{
+ char *str = do_read_string(fd, ph);
+ fprintf(fp, "# hostname : %s\n", str);
+ free(str);
+}
+
+static void print_osrelease(struct perf_header *ph, int fd, FILE *fp)
+{
+ char *str = do_read_string(fd, ph);
+ fprintf(fp, "# os release : %s\n", str);
+ free(str);
+}
+
+static void print_arch(struct perf_header *ph, int fd, FILE *fp)
+{
+ char *str = do_read_string(fd, ph);
+ fprintf(fp, "# arch : %s\n", str);
+ free(str);
+}
+
+static void print_cpudesc(struct perf_header *ph, int fd, FILE *fp)
+{
+ char *str = do_read_string(fd, ph);
+ fprintf(fp, "# cpudesc : %s\n", str);
+ free(str);
+}
+
+static void print_nrcpus(struct perf_header *ph, int fd, FILE *fp)
+{
+ ssize_t ret;
+ u32 nr;
+
+ ret = read(fd, &nr, sizeof(nr));
+ if (ret != (ssize_t)sizeof(nr))
+ nr = -1; /* interpreted as error */
+
+ if (ph->needs_swap)
+ nr = bswap_32(nr);
+
+ fprintf(fp, "# nrcpus online : %u\n", nr);
+
+ ret = read(fd, &nr, sizeof(nr));
+ if (ret != (ssize_t)sizeof(nr))
+ nr = -1; /* interpreted as error */
+
+ if (ph->needs_swap)
+ nr = bswap_32(nr);
+
+ fprintf(fp, "# nrcpus avail : %u\n", nr);
+}
+
+static void print_version(struct perf_header *ph, int fd, FILE *fp)
+{
+ char *str = do_read_string(fd, ph);
+ fprintf(fp, "# perf version : %s\n", str);
+ free(str);
+}
+
+static void print_cmdline(struct perf_header *ph, int fd, FILE *fp)
+{
+ ssize_t ret;
+ char *str;
+ u32 nr, i;
+
+ ret = read(fd, &nr, sizeof(nr));
+ if (ret != (ssize_t)sizeof(nr))
+ return;
+
+ if (ph->needs_swap)
+ nr = bswap_32(nr);
+
+ fprintf(fp, "# cmdline : ");
+
+ for (i = 0; i < nr; i++) {
+ str = do_read_string(fd, ph);
+ fprintf(fp, "%s ", str);
+ free(str);
+ }
+ fputc('\n', fp);
+}
+
+static void print_cpu_topology(struct perf_header *ph, int fd, FILE *fp)
+{
+ ssize_t ret;
+ u32 nr, i;
+ char *str;
+
+ ret = read(fd, &nr, sizeof(nr));
+ if (ret != (ssize_t)sizeof(nr))
+ return;
+
+ if (ph->needs_swap)
+ nr = bswap_32(nr);
+
+ for (i = 0; i < nr; i++) {
+ str = do_read_string(fd, ph);
+ fprintf(fp, "# sibling cores : %s\n", str);
+ free(str);
+ }
+
+ ret = read(fd, &nr, sizeof(nr));
+ if (ret != (ssize_t)sizeof(nr))
+ return;
+
+ if (ph->needs_swap)
+ nr = bswap_32(nr);
+
+ for (i = 0; i < nr; i++) {
+ str = do_read_string(fd, ph);
+ fprintf(fp, "# sibling threads : %s\n", str);
+ free(str);
+ }
+}
+
+static void print_event_desc(struct perf_header *ph, int fd, FILE *fp)
+{
+ struct perf_event_attr attr;
+ uint64_t id;
+ void *buf = NULL;
+ char *str;
+ u32 nre, sz, nr, i, j, msz;
+ int ret;
+
+ /* number of events */
+ ret = read(fd, &nre, sizeof(nre));
+ if (ret != (ssize_t)sizeof(nre))
+ goto error;
+
+ if (ph->needs_swap)
+ nre = bswap_32(nre);
+
+ ret = read(fd, &sz, sizeof(sz));
+ if (ret != (ssize_t)sizeof(sz))
+ goto error;
+
+ if (ph->needs_swap)
+ sz = bswap_32(sz);
+
+ /*
+ * ensure it is at least to our ABI rev
+ */
+ if (sz < (u32)sizeof(attr))
+ goto error;
+
+ memset(&attr, 0, sizeof(attr));
+
+ /* read entire region to sync up to next field */
+ buf = malloc(sz);
+ if (!buf)
+ goto error;
+
+ msz = sizeof(attr);
+ if (sz < msz)
+ msz = sz;
+
+ for (i = 0 ; i < nre; i++) {
+
+ ret = read(fd, buf, sz);
+ if (ret != (ssize_t)sz)
+ goto error;
+
+ if (ph->needs_swap)
+ perf_event__attr_swap(buf);
+
+ memcpy(&attr, buf, msz);
+
+ ret = read(fd, &nr, sizeof(nr));
+ if (ret != (ssize_t)sizeof(nr))
+ goto error;
+
+ if (ph->needs_swap)
+ nr = bswap_32(nr);
+
+ str = do_read_string(fd, ph);
+ fprintf(fp, "# event : name = %s, ", str);
+ free(str);
+
+ fprintf(fp, "type = %d, config = 0x%"PRIx64
+ ", config1 = 0x%"PRIx64", config2 = 0x%"PRIx64,
+ attr.type,
+ (u64)attr.config,
+ (u64)attr.config1,
+ (u64)attr.config2);
+
+ fprintf(fp, ", excl_usr = %d, excl_kern = %d",
+ attr.exclude_user,
+ attr.exclude_kernel);
+
+ if (nr)
+ fprintf(fp, ", id = {");
+
+ for (j = 0 ; j < nr; j++) {
+ ret = read(fd, &id, sizeof(id));
+ if (ret != (ssize_t)sizeof(id))
+ goto error;
+
+ if (ph->needs_swap)
+ id = bswap_64(id);
+
+ if (j)
+ fputc(',', fp);
+
+ fprintf(fp, " %"PRIu64, id);
+ }
+ if (nr && j == nr)
+ fprintf(fp, " }");
+ fputc('\n', fp);
+ }
+ free(buf);
+ return;
+error:
+ fprintf(fp, "# event desc: not available or unable to read\n");
+}
+
+static void print_total_mem(struct perf_header *h __used, int fd, FILE *fp)
+{
+ uint64_t mem;
+ ssize_t ret;
+
+ ret = read(fd, &mem, sizeof(mem));
+ if (ret != sizeof(mem))
+ goto error;
+
+ if (h->needs_swap)
+ mem = bswap_64(mem);
+
+ fprintf(fp, "# total memory : %"PRIu64" kB\n", mem);
+ return;
+error:
+ fprintf(fp, "# total memory : unknown\n");
+}
+
+static void print_numa_topology(struct perf_header *h __used, int fd, FILE *fp)
+{
+ ssize_t ret;
+ u32 nr, c, i;
+ char *str;
+ uint64_t mem_total, mem_free;
+
+ /* nr nodes */
+ ret = read(fd, &nr, sizeof(nr));
+ if (ret != (ssize_t)sizeof(nr))
+ goto error;
+
+ if (h->needs_swap)
+ nr = bswap_32(nr);
+
+ for (i = 0; i < nr; i++) {
+
+ /* node number */
+ ret = read(fd, &c, sizeof(c));
+ if (ret != (ssize_t)sizeof(c))
+ goto error;
+
+ if (h->needs_swap)
+ c = bswap_32(c);
+
+ ret = read(fd, &mem_total, sizeof(u64));
+ if (ret != sizeof(u64))
+ goto error;
+
+ ret = read(fd, &mem_free, sizeof(u64));
+ if (ret != sizeof(u64))
+ goto error;
+
+ if (h->needs_swap) {
+ mem_total = bswap_64(mem_total);
+ mem_free = bswap_64(mem_free);
+ }
+
+ fprintf(fp, "# node%u meminfo : total = %"PRIu64" kB,"
+ " free = %"PRIu64" kB\n",
+ c,
+ mem_total,
+ mem_free);
+
+ str = do_read_string(fd, h);
+ fprintf(fp, "# node%u cpu list : %s\n", c, str);
+ free(str);
+ }
+ return;
+error:
+ fprintf(fp, "# numa topology : not available\n");
+}
+
+static void print_cpuid(struct perf_header *ph, int fd, FILE *fp)
+{
+ char *str = do_read_string(fd, ph);
+ fprintf(fp, "# cpuid : %s\n", str);
+ free(str);
+}
+
+struct feature_ops {
+ int (*write)(int fd, struct perf_header *h, struct perf_evlist *evlist);
+ void (*print)(struct perf_header *h, int fd, FILE *fp);
+ const char *name;
+ bool full_only;
+};
+
+#define FEAT_OPA(n, w, p) \
+ [n] = { .name = #n, .write = w, .print = p }
+#define FEAT_OPF(n, w, p) \
+ [n] = { .name = #n, .write = w, .print = p, .full_only = true }
+
+static const struct feature_ops feat_ops[HEADER_LAST_FEATURE] = {
+ FEAT_OPA(HEADER_TRACE_INFO, write_trace_info, NULL),
+ FEAT_OPA(HEADER_BUILD_ID, write_build_id, NULL),
+ FEAT_OPA(HEADER_HOSTNAME, write_hostname, print_hostname),
+ FEAT_OPA(HEADER_OSRELEASE, write_osrelease, print_osrelease),
+ FEAT_OPA(HEADER_VERSION, write_version, print_version),
+ FEAT_OPA(HEADER_ARCH, write_arch, print_arch),
+ FEAT_OPA(HEADER_NRCPUS, write_nrcpus, print_nrcpus),
+ FEAT_OPA(HEADER_CPUDESC, write_cpudesc, print_cpudesc),
+ FEAT_OPA(HEADER_CPUID, write_cpuid, print_cpuid),
+ FEAT_OPA(HEADER_TOTAL_MEM, write_total_mem, print_total_mem),
+ FEAT_OPA(HEADER_EVENT_DESC, write_event_desc, print_event_desc),
+ FEAT_OPA(HEADER_CMDLINE, write_cmdline, print_cmdline),
+ FEAT_OPF(HEADER_CPU_TOPOLOGY, write_cpu_topology, print_cpu_topology),
+ FEAT_OPF(HEADER_NUMA_TOPOLOGY, write_numa_topology, print_numa_topology),
+};
+
+struct header_print_data {
+ FILE *fp;
+ bool full; /* extended list of headers */
+};
+
+static int perf_file_section__fprintf_info(struct perf_file_section *section,
+ struct perf_header *ph,
+ int feat, int fd, void *data)
+{
+ struct header_print_data *hd = data;
+
+ if (lseek(fd, section->offset, SEEK_SET) == (off_t)-1) {
+ pr_debug("Failed to lseek to %" PRIu64 " offset for feature "
+ "%d, continuing...\n", section->offset, feat);
+ return 0;
+ }
+ if (feat < HEADER_TRACE_INFO || feat >= HEADER_LAST_FEATURE) {
+ pr_warning("unknown feature %d\n", feat);
+ return -1;
+ }
+ if (!feat_ops[feat].print)
+ return 0;
+
+ if (!feat_ops[feat].full_only || hd->full)
+ feat_ops[feat].print(ph, fd, hd->fp);
+ else
+ fprintf(hd->fp, "# %s info available, use -I to display\n",
+ feat_ops[feat].name);
+
+ return 0;
+}
+
+int perf_header__fprintf_info(struct perf_session *session, FILE *fp, bool full)
+{
+ struct header_print_data hd;
+ struct perf_header *header = &session->header;
+ int fd = session->fd;
+ hd.fp = fp;
+ hd.full = full;
+
+ perf_header__process_sections(header, fd, &hd,
+ perf_file_section__fprintf_info);
+ return 0;
+}
+
#define dsos__for_each_with_build_id(pos, head) \
list_for_each_entry(pos, head, node) \
if (!pos->has_build_id) \
@@ -356,15 +1378,41 @@ static bool perf_session__read_build_ids(struct perf_session *session, bool with
return ret;
}
+static int do_write_feat(int fd, struct perf_header *h, int type,
+ struct perf_file_section **p,
+ struct perf_evlist *evlist)
+{
+ int err;
+ int ret = 0;
+
+ if (perf_header__has_feat(h, type)) {
+
+ (*p)->offset = lseek(fd, 0, SEEK_CUR);
+
+ err = feat_ops[type].write(fd, h, evlist);
+ if (err < 0) {
+ pr_debug("failed to write feature %d\n", type);
+
+ /* undo anything written */
+ lseek(fd, (*p)->offset, SEEK_SET);
+
+ return -1;
+ }
+ (*p)->size = lseek(fd, 0, SEEK_CUR) - (*p)->offset;
+ (*p)++;
+ }
+ return ret;
+}
+
static int perf_header__adds_write(struct perf_header *header,
struct perf_evlist *evlist, int fd)
{
int nr_sections;
struct perf_session *session;
- struct perf_file_section *feat_sec;
+ struct perf_file_section *feat_sec, *p;
int sec_size;
u64 sec_start;
- int idx = 0, err;
+ int err;
session = container_of(header, struct perf_session, header);
@@ -376,7 +1424,7 @@ static int perf_header__adds_write(struct perf_header *header,
if (!nr_sections)
return 0;
- feat_sec = calloc(sizeof(*feat_sec), nr_sections);
+ feat_sec = p = calloc(sizeof(*feat_sec), nr_sections);
if (feat_sec == NULL)
return -ENOMEM;
@@ -385,36 +1433,69 @@ static int perf_header__adds_write(struct perf_header *header,
sec_start = header->data_offset + header->data_size;
lseek(fd, sec_start + sec_size, SEEK_SET);
- if (perf_header__has_feat(header, HEADER_TRACE_INFO)) {
- struct perf_file_section *trace_sec;
-
- trace_sec = &feat_sec[idx++];
+ err = do_write_feat(fd, header, HEADER_TRACE_INFO, &p, evlist);
+ if (err)
+ goto out_free;
- /* Write trace info */
- trace_sec->offset = lseek(fd, 0, SEEK_CUR);
- read_tracing_data(fd, &evlist->entries);
- trace_sec->size = lseek(fd, 0, SEEK_CUR) - trace_sec->offset;
+ err = do_write_feat(fd, header, HEADER_BUILD_ID, &p, evlist);
+ if (err) {
+ perf_header__clear_feat(header, HEADER_BUILD_ID);
+ goto out_free;
}
- if (perf_header__has_feat(header, HEADER_BUILD_ID)) {
- struct perf_file_section *buildid_sec;
+ err = do_write_feat(fd, header, HEADER_HOSTNAME, &p, evlist);
+ if (err)
+ perf_header__clear_feat(header, HEADER_HOSTNAME);
- buildid_sec = &feat_sec[idx++];
+ err = do_write_feat(fd, header, HEADER_OSRELEASE, &p, evlist);
+ if (err)
+ perf_header__clear_feat(header, HEADER_OSRELEASE);
- /* Write build-ids */
- buildid_sec->offset = lseek(fd, 0, SEEK_CUR);
- err = dsos__write_buildid_table(header, fd);
- if (err < 0) {
- pr_debug("failed to write buildid table\n");
- goto out_free;
- }
- buildid_sec->size = lseek(fd, 0, SEEK_CUR) -
- buildid_sec->offset;
- if (!no_buildid_cache)
- perf_session__cache_build_ids(session);
- }
+ err = do_write_feat(fd, header, HEADER_VERSION, &p, evlist);
+ if (err)
+ perf_header__clear_feat(header, HEADER_VERSION);
+
+ err = do_write_feat(fd, header, HEADER_ARCH, &p, evlist);
+ if (err)
+ perf_header__clear_feat(header, HEADER_ARCH);
+
+ err = do_write_feat(fd, header, HEADER_NRCPUS, &p, evlist);
+ if (err)
+ perf_header__clear_feat(header, HEADER_NRCPUS);
+
+ err = do_write_feat(fd, header, HEADER_CPUDESC, &p, evlist);
+ if (err)
+ perf_header__clear_feat(header, HEADER_CPUDESC);
+
+ err = do_write_feat(fd, header, HEADER_CPUID, &p, evlist);
+ if (err)
+ perf_header__clear_feat(header, HEADER_CPUID);
+
+ err = do_write_feat(fd, header, HEADER_TOTAL_MEM, &p, evlist);
+ if (err)
+ perf_header__clear_feat(header, HEADER_TOTAL_MEM);
+
+ err = do_write_feat(fd, header, HEADER_CMDLINE, &p, evlist);
+ if (err)
+ perf_header__clear_feat(header, HEADER_CMDLINE);
+
+ err = do_write_feat(fd, header, HEADER_EVENT_DESC, &p, evlist);
+ if (err)
+ perf_header__clear_feat(header, HEADER_EVENT_DESC);
+
+ err = do_write_feat(fd, header, HEADER_CPU_TOPOLOGY, &p, evlist);
+ if (err)
+ perf_header__clear_feat(header, HEADER_CPU_TOPOLOGY);
+
+ err = do_write_feat(fd, header, HEADER_NUMA_TOPOLOGY, &p, evlist);
+ if (err)
+ perf_header__clear_feat(header, HEADER_NUMA_TOPOLOGY);
lseek(fd, sec_start, SEEK_SET);
+ /*
+ * may write more than needed due to dropped feature, but
+ * this is okay, reader will skip the mising entries
+ */
err = do_write(fd, feat_sec, sec_size);
if (err < 0)
pr_debug("failed to write feature section\n");
@@ -554,9 +1635,10 @@ static int perf_header__getbuffer64(struct perf_header *header,
}
int perf_header__process_sections(struct perf_header *header, int fd,
+ void *data,
int (*process)(struct perf_file_section *section,
- struct perf_header *ph,
- int feat, int fd))
+ struct perf_header *ph,
+ int feat, int fd, void *data))
{
struct perf_file_section *feat_sec;
int nr_sections;
@@ -584,7 +1666,7 @@ int perf_header__process_sections(struct perf_header *header, int fd,
if (perf_header__has_feat(header, feat)) {
struct perf_file_section *sec = &feat_sec[idx++];
- err = process(sec, header, feat, fd);
+ err = process(sec, header, feat, fd, data);
if (err < 0)
break;
}
@@ -796,7 +1878,7 @@ out:
static int perf_file_section__process(struct perf_file_section *section,
struct perf_header *ph,
- int feat, int fd)
+ int feat, int fd, void *data __used)
{
if (lseek(fd, section->offset, SEEK_SET) == (off_t)-1) {
pr_debug("Failed to lseek to %" PRIu64 " offset for feature "
@@ -935,7 +2017,8 @@ int perf_session__read_header(struct perf_session *session, int fd)
event_count = f_header.event_types.size / sizeof(struct perf_trace_event_type);
}
- perf_header__process_sections(header, fd, perf_file_section__process);
+ perf_header__process_sections(header, fd, NULL,
+ perf_file_section__process);
lseek(fd, header->data_offset, SEEK_SET);
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index 1886256768a..3d5a742f4a2 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -12,6 +12,20 @@
enum {
HEADER_TRACE_INFO = 1,
HEADER_BUILD_ID,
+
+ HEADER_HOSTNAME,
+ HEADER_OSRELEASE,
+ HEADER_VERSION,
+ HEADER_ARCH,
+ HEADER_NRCPUS,
+ HEADER_CPUDESC,
+ HEADER_CPUID,
+ HEADER_TOTAL_MEM,
+ HEADER_CMDLINE,
+ HEADER_EVENT_DESC,
+ HEADER_CPU_TOPOLOGY,
+ HEADER_NUMA_TOPOLOGY,
+
HEADER_LAST_FEATURE,
};
@@ -68,10 +82,15 @@ void perf_header__set_feat(struct perf_header *header, int feat);
void perf_header__clear_feat(struct perf_header *header, int feat);
bool perf_header__has_feat(const struct perf_header *header, int feat);
+int perf_header__set_cmdline(int argc, const char **argv);
+
int perf_header__process_sections(struct perf_header *header, int fd,
+ void *data,
int (*process)(struct perf_file_section *section,
- struct perf_header *ph,
- int feat, int fd));
+ struct perf_header *ph,
+ int feat, int fd, void *data));
+
+int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full);
int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
const char *name, bool is_kallsyms);
@@ -104,4 +123,10 @@ int perf_event__synthesize_build_id(struct dso *pos, u16 misc,
struct perf_session *session);
int perf_event__process_build_id(union perf_event *event,
struct perf_session *session);
+
+/*
+ * arch specific callback
+ */
+int get_cpuid(char *buffer, size_t sz);
+
#endif /* __PERF_HEADER_H */
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 72458d9da5b..20e011c99a9 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1326,3 +1326,22 @@ int perf_session__cpu_bitmap(struct perf_session *session,
return 0;
}
+
+void perf_session__fprintf_info(struct perf_session *session, FILE *fp,
+ bool full)
+{
+ struct stat st;
+ int ret;
+
+ if (session == NULL || fp == NULL)
+ return;
+
+ ret = fstat(session->fd, &st);
+ if (ret == -1)
+ return;
+
+ fprintf(fp, "# ========\n");
+ fprintf(fp, "# captured on: %s", ctime(&st.st_ctime));
+ perf_header__fprintf_info(session, fp, full);
+ fprintf(fp, "# ========\n#\n");
+}
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 974d0cbee5e..514b06d41f0 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -177,4 +177,5 @@ void perf_session__print_ip(union perf_event *event,
int perf_session__cpu_bitmap(struct perf_session *session,
const char *cpu_list, unsigned long *cpu_bitmap);
+void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
#endif /* __PERF_SESSION_H */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-12 20:10:28 +0000