diff options
Diffstat (limited to 'tools/perf/util')
38 files changed, 2750 insertions, 972 deletions
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index e01af2b1a46..bc8f4773d4d 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -16,6 +16,8 @@ #include "annotate.h" #include <pthread.h> +const char *disassembler_style; + int symbol__annotate_init(struct map *map __used, struct symbol *sym) { struct annotation *notes = symbol__annotation(sym); @@ -323,10 +325,15 @@ fallback: dso, dso->long_name, sym, sym->name); snprintf(command, sizeof(command), - "objdump --start-address=0x%016" PRIx64 - " --stop-address=0x%016" PRIx64 " -dS -C %s|grep -v %s|expand", + "objdump %s%s --start-address=0x%016" PRIx64 + " --stop-address=0x%016" PRIx64 + " -d %s %s -C %s|grep -v %s|expand", + disassembler_style ? "-M " : "", + disassembler_style ? disassembler_style : "", map__rip_2objdump(map, sym->start), map__rip_2objdump(map, sym->end), + symbol_conf.annotate_asm_raw ? "" : "--no-show-raw", + symbol_conf.annotate_src ? "-S" : "", symfs_filename, filename); pr_debug("Executing: %s\n", command); diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h index c2c28689680..d9072523d34 100644 --- a/tools/perf/util/annotate.h +++ b/tools/perf/util/annotate.h @@ -91,13 +91,18 @@ int symbol__tty_annotate(struct symbol *sym, struct map *map, int evidx, #ifdef NO_NEWT_SUPPORT static inline int symbol__tui_annotate(struct symbol *sym __used, struct map *map __used, - int evidx __used, int refresh __used) + int evidx __used, + void(*timer)(void *arg) __used, + void *arg __used, int delay_secs __used) { return 0; } #else int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx, - int refresh); + int nr_events, void(*timer)(void *arg), void *arg, + int delay_secs); #endif +extern const char *disassembler_style; + #endif /* __PERF_ANNOTATE_H */ diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c index e191eb9a667..521c38a7919 100644 --- a/tools/perf/util/color.c +++ b/tools/perf/util/color.c @@ -200,7 +200,7 @@ static int __color_vfprintf(FILE *fp, const char *color, const char *fmt, * Auto-detect: */ if (perf_use_color_default < 0) { - if (isatty(1) || pager_in_use()) + if (isatty(fileno(fp)) || pager_in_use()) perf_use_color_default = 1; else perf_use_color_default = 0; diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c index fe02903f7d0..80d9598db31 100644 --- a/tools/perf/util/config.c +++ b/tools/perf/util/config.c @@ -341,7 +341,7 @@ const char *perf_config_dirname(const char *name, const char *value) static int perf_default_core_config(const char *var __used, const char *value __used) { - /* Add other config variables here and to Documentation/config.txt. */ + /* Add other config variables here. */ return 0; } @@ -350,7 +350,7 @@ int perf_default_config(const char *var, const char *value, void *dummy __used) if (!prefixcmp(var, "core.")) return perf_default_core_config(var, value); - /* Add other config variables here and to Documentation/config.txt. */ + /* Add other config variables here. */ return 0; } diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index 3c1b8a63210..437f8ca679a 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -169,12 +169,17 @@ static int perf_event__synthesize_mmap_events(union perf_event *event, continue; pbf += n + 3; if (*pbf == 'x') { /* vm_exec */ + char anonstr[] = "//anon\n"; char *execname = strchr(bf, '/'); /* Catch VDSO */ if (execname == NULL) execname = strstr(bf, "[vdso]"); + /* Catch anonymous mmaps */ + if ((execname == NULL) && !strstr(bf, "[")) + execname = anonstr; + if (execname == NULL) continue; diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h index 1d7f66488a8..357a85b8524 100644 --- a/tools/perf/util/event.h +++ b/tools/perf/util/event.h @@ -186,6 +186,6 @@ const char *perf_event__name(unsigned int id); int perf_event__parse_sample(const union perf_event *event, u64 type, int sample_size, bool sample_id_all, - struct perf_sample *sample); + struct perf_sample *sample, bool swapped); #endif /* __PERF_RECORD_H */ diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index c12bd476c6f..2f6bc89027d 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -113,6 +113,19 @@ void perf_evlist__disable(struct perf_evlist *evlist) } } +void perf_evlist__enable(struct perf_evlist *evlist) +{ + int cpu, thread; + struct perf_evsel *pos; + + for (cpu = 0; cpu < evlist->cpus->nr; cpu++) { + list_for_each_entry(pos, &evlist->entries, node) { + for (thread = 0; thread < evlist->threads->nr; thread++) + ioctl(FD(pos, cpu, thread), PERF_EVENT_IOC_ENABLE); + } + } +} + int perf_evlist__alloc_pollfd(struct perf_evlist *evlist) { int nfds = evlist->cpus->nr * evlist->threads->nr * evlist->nr_entries; @@ -520,3 +533,9 @@ bool perf_evlist__sample_id_all(const struct perf_evlist *evlist) first = list_entry(evlist->entries.next, struct perf_evsel, node); return first->attr.sample_id_all; } + +void perf_evlist__set_selected(struct perf_evlist *evlist, + struct perf_evsel *evsel) +{ + evlist->selected = evsel; +} diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index ce85ae9ae57..6be71fc5779 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -25,6 +25,7 @@ struct perf_evlist { struct pollfd *pollfd; struct thread_map *threads; struct cpu_map *cpus; + struct perf_evsel *selected; }; struct perf_evsel; @@ -54,6 +55,10 @@ int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite); void perf_evlist__munmap(struct perf_evlist *evlist); void perf_evlist__disable(struct perf_evlist *evlist); +void perf_evlist__enable(struct perf_evlist *evlist); + +void perf_evlist__set_selected(struct perf_evlist *evlist, + struct perf_evsel *evsel); static inline void perf_evlist__set_maps(struct perf_evlist *evlist, struct cpu_map *cpus, diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index a03a36b7908..b46f6e4bff3 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -7,6 +7,8 @@ * Released under the GPL v2. (and only v2, not any later version) */ +#include <byteswap.h> +#include "asm/bug.h" #include "evsel.h" #include "evlist.h" #include "util.h" @@ -37,6 +39,7 @@ void perf_evsel__init(struct perf_evsel *evsel, evsel->idx = idx; evsel->attr = *attr; INIT_LIST_HEAD(&evsel->node); + hists__init(&evsel->hists); } struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx) @@ -342,10 +345,20 @@ static bool sample_overlap(const union perf_event *event, int perf_event__parse_sample(const union perf_event *event, u64 type, int sample_size, bool sample_id_all, - struct perf_sample *data) + struct perf_sample *data, bool swapped) { const u64 *array; + /* + * used for cross-endian analysis. See git commit 65014ab3 + * for why this goofiness is needed. + */ + union { + u64 val64; + u32 val32[2]; + } u; + + data->cpu = data->pid = data->tid = -1; data->stream_id = data->id = data->time = -1ULL; @@ -366,9 +379,16 @@ int perf_event__parse_sample(const union perf_event *event, u64 type, } if (type & PERF_SAMPLE_TID) { - u32 *p = (u32 *)array; - data->pid = p[0]; - data->tid = p[1]; + u.val64 = *array; + if (swapped) { + /* undo swap of u64, then swap on individual u32s */ + u.val64 = bswap_64(u.val64); + u.val32[0] = bswap_32(u.val32[0]); + u.val32[1] = bswap_32(u.val32[1]); + } + + data->pid = u.val32[0]; + data->tid = u.val32[1]; array++; } @@ -395,8 +415,15 @@ int perf_event__parse_sample(const union perf_event *event, u64 type, } if (type & PERF_SAMPLE_CPU) { - u32 *p = (u32 *)array; - data->cpu = *p; + + u.val64 = *array; + if (swapped) { + /* undo swap of u64, then swap on individual u32s */ + u.val64 = bswap_64(u.val64); + u.val32[0] = bswap_32(u.val32[0]); + } + + data->cpu = u.val32[0]; array++; } @@ -423,18 +450,27 @@ int perf_event__parse_sample(const union perf_event *event, u64 type, } if (type & PERF_SAMPLE_RAW) { - u32 *p = (u32 *)array; + const u64 *pdata; + + u.val64 = *array; + if (WARN_ONCE(swapped, + "Endianness of raw data not corrected!\n")) { + /* undo swap of u64, then swap on individual u32s */ + u.val64 = bswap_64(u.val64); + u.val32[0] = bswap_32(u.val32[0]); + u.val32[1] = bswap_32(u.val32[1]); + } if (sample_overlap(event, array, sizeof(u32))) return -EFAULT; - data->raw_size = *p; - p++; + data->raw_size = u.val32[0]; + pdata = (void *) array + sizeof(u32); - if (sample_overlap(event, p, data->raw_size)) + if (sample_overlap(event, pdata, data->raw_size)) return -EFAULT; - data->raw_data = p; + data->raw_data = (void *) pdata; } return 0; diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index b6c1ad123ca..76c0b2c49eb 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; |