1e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include <linux/types.h> 2e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "event.h" 3e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "debug.h" 4e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "machine.h" 5e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "sort.h" 6e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "string.h" 7e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "strlist.h" 8e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "thread.h" 9e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "thread_map.h" 10e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 11e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic const char *perf_event__names[] = { 12e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng [0] = "TOTAL", 13e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng [PERF_RECORD_MMAP] = "MMAP", 14e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng [PERF_RECORD_MMAP2] = "MMAP2", 15e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng [PERF_RECORD_LOST] = "LOST", 16e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng [PERF_RECORD_COMM] = "COMM", 17e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng [PERF_RECORD_EXIT] = "EXIT", 18e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng [PERF_RECORD_THROTTLE] = "THROTTLE", 19e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE", 20e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng [PERF_RECORD_FORK] = "FORK", 21e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng [PERF_RECORD_READ] = "READ", 22e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng [PERF_RECORD_SAMPLE] = "SAMPLE", 23e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng [PERF_RECORD_HEADER_ATTR] = "ATTR", 24e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE", 25e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA", 26e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID", 27e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND", 28e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 29e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 30e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengconst char *perf_event__name(unsigned int id) 31e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 32e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (id >= ARRAY_SIZE(perf_event__names)) 33e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return "INVALID"; 34e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!perf_event__names[id]) 35e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return "UNKNOWN"; 36e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return perf_event__names[id]; 37e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 38e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 39e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic struct perf_sample synth_sample = { 40e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .pid = -1, 41e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .tid = -1, 42e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .time = -1, 43e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .stream_id = -1, 44e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .cpu = -1, 45e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .period = 1, 46e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 47e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 48e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic pid_t perf_event__get_comm_tgid(pid_t pid, char *comm, size_t len) 49e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 50e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char filename[PATH_MAX]; 51e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char bf[BUFSIZ]; 52e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng FILE *fp; 53e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size_t size = 0; 54e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pid_t tgid = -1; 55e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 56e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng snprintf(filename, sizeof(filename), "/proc/%d/status", pid); 57e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 58e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng fp = fopen(filename, "r"); 59e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (fp == NULL) { 60e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_debug("couldn't open %s\n", filename); 61e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 62e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 63e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 64e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng while (!comm[0] || (tgid < 0)) { 65e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (fgets(bf, sizeof(bf), fp) == NULL) { 66e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_warning("couldn't get COMM and pgid, malformed %s\n", 67e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng filename); 68e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 69e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 70e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 71e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (memcmp(bf, "Name:", 5) == 0) { 72e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char *name = bf + 5; 73e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng while (*name && isspace(*name)) 74e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ++name; 75e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size = strlen(name) - 1; 76e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (size >= len) 77e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size = len - 1; 78e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng memcpy(comm, name, size); 79e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng comm[size] = '\0'; 80e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 81e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else if (memcmp(bf, "Tgid:", 5) == 0) { 82e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char *tgids = bf + 5; 83e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng while (*tgids && isspace(*tgids)) 84e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ++tgids; 85e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng tgid = atoi(tgids); 86e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 87e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 88e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 89e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng fclose(fp); 90e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 91e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return tgid; 92e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 93e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 94e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic pid_t perf_event__synthesize_comm(struct perf_tool *tool, 95e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *event, pid_t pid, 96e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int full, 97e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_event__handler_t process, 98e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine) 99e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 100e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char filename[PATH_MAX]; 101e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size_t size; 102e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng DIR *tasks; 103e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct dirent dirent, *next; 104e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pid_t tgid; 105e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 106e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng memset(&event->comm, 0, sizeof(event->comm)); 107e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 108e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng tgid = perf_event__get_comm_tgid(pid, event->comm.comm, 109e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sizeof(event->comm.comm)); 110e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (tgid < 0) 111e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 112e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 113e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->comm.pid = tgid; 114e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->comm.header.type = PERF_RECORD_COMM; 115e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 116e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size = strlen(event->comm.comm) + 1; 117e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size = PERF_ALIGN(size, sizeof(u64)); 118e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng memset(event->comm.comm + size, 0, machine->id_hdr_size); 119e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->comm.header.size = (sizeof(event->comm) - 120e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (sizeof(event->comm.comm) - size) + 121e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng machine->id_hdr_size); 122e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!full) { 123e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->comm.tid = pid; 124e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 125e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (process(tool, event, &synth_sample, machine) != 0) 126e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -1; 127e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 128e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 129e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 130e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 131e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng snprintf(filename, sizeof(filename), "/proc/%d/task", pid); 132e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 133e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng tasks = opendir(filename); 134e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (tasks == NULL) { 135e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_debug("couldn't open %s\n", filename); 136e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 137e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 138e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 139e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng while (!readdir_r(tasks, &dirent, &next) && next) { 140e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char *end; 141e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pid = strtol(dirent.d_name, &end, 10); 142e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (*end) 143e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng continue; 144e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 145e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* already have tgid; jut want to update the comm */ 146e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (void) perf_event__get_comm_tgid(pid, event->comm.comm, 147e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sizeof(event->comm.comm)); 148e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 149e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size = strlen(event->comm.comm) + 1; 150e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size = PERF_ALIGN(size, sizeof(u64)); 151e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng memset(event->comm.comm + size, 0, machine->id_hdr_size); 152e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->comm.header.size = (sizeof(event->comm) - 153e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (sizeof(event->comm.comm) - size) + 154e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng machine->id_hdr_size); 155e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 156e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->comm.tid = pid; 157e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 158e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (process(tool, event, &synth_sample, machine) != 0) { 159e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng tgid = -1; 160e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 161e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 162e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 163e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 164e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng closedir(tasks); 165e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengout: 166e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return tgid; 167e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 168e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 169e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int perf_event__synthesize_mmap_events(struct perf_tool *tool, 170e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *event, 171e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pid_t pid, pid_t tgid, 172e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_event__handler_t process, 173e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine) 174e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 175e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char filename[PATH_MAX]; 176e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng FILE *fp; 177e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int rc = 0; 178e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 179e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng snprintf(filename, sizeof(filename), "/proc/%d/maps", pid); 180e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 181e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng fp = fopen(filename, "r"); 182e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (fp == NULL) { 183e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 184e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * We raced with a task exiting - just return: 185e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 186e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_debug("couldn't open %s\n", filename); 187e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -1; 188e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 189e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 190e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->header.type = PERF_RECORD_MMAP; 191e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 192e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c 193e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 194e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->header.misc = PERF_RECORD_MISC_USER; 195e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 196e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng while (1) { 197e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char bf[BUFSIZ]; 198e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char prot[5]; 199e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char execname[PATH_MAX]; 200e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char anonstr[] = "//anon"; 201e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size_t size; 202e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ssize_t n; 203e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 204e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (fgets(bf, sizeof(bf), fp) == NULL) 205e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 206e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 207e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* ensure null termination since stack will be reused. */ 208e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng strcpy(execname, ""); 209e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 210e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */ 211e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %*x:%*x %*u %s\n", 212e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng &event->mmap.start, &event->mmap.len, prot, 213e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng &event->mmap.pgoff, 214e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng execname); 215f0ccdc5a2da8301af17b902901255002b59115ffElliott Hughes /* 216f0ccdc5a2da8301af17b902901255002b59115ffElliott Hughes * Anon maps don't have the execname. 217f0ccdc5a2da8301af17b902901255002b59115ffElliott Hughes */ 218f0ccdc5a2da8301af17b902901255002b59115ffElliott Hughes if (n < 4) 219e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng continue; 220e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 221e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (prot[2] != 'x') 222e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng continue; 223e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 224e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!strcmp(execname, "")) 225e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng strcpy(execname, anonstr); 226e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 227e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size = strlen(execname) + 1; 228e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng memcpy(event->mmap.filename, execname, size); 229e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size = PERF_ALIGN(size, sizeof(u64)); 230e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.len -= event->mmap.start; 231e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.header.size = (sizeof(event->mmap) - 232e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (sizeof(event->mmap.filename) - size)); 233e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng memset(event->mmap.filename + size, 0, machine->id_hdr_size); 234e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.header.size += machine->id_hdr_size; 235e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.pid = tgid; 236e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.tid = pid; 237e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 238e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (process(tool, event, &synth_sample, machine) != 0) { 239e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rc = -1; 240e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 241e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 242e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 243e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 244e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng fclose(fp); 245e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return rc; 246e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 247e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 248e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint perf_event__synthesize_modules(struct perf_tool *tool, 249e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_event__handler_t process, 250e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine) 251e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 252e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int rc = 0; 253e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct rb_node *nd; 254e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct map_groups *kmaps = &machine->kmaps; 255e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *event = zalloc((sizeof(event->mmap) + 256e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng machine->id_hdr_size)); 257e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (event == NULL) { 258e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_debug("Not enough memory synthesizing mmap event " 259e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "for kernel modules\n"); 260e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -1; 261e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 262e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 263e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->header.type = PERF_RECORD_MMAP; 264e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 265e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 266e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * kernel uses 0 for user space maps, see kernel/perf_event.c 267e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * __perf_event_mmap 268e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 269e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (machine__is_host(machine)) 270e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->header.misc = PERF_RECORD_MISC_KERNEL; 271e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else 272e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; 273e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 274e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (nd = rb_first(&kmaps->maps[MAP__FUNCTION]); 275e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng nd; nd = rb_next(nd)) { 276e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size_t size; 277e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct map *pos = rb_entry(nd, struct map, rb_node); 278e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 279e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (pos->dso->kernel) 280e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng continue; 281e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 282e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size = PERF_ALIGN(pos->dso->long_name_len + 1, sizeof(u64)); 283e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.header.type = PERF_RECORD_MMAP; 284e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.header.size = (sizeof(event->mmap) - 285e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (sizeof(event->mmap.filename) - size)); 286e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng memset(event->mmap.filename + size, 0, machine->id_hdr_size); 287e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.header.size += machine->id_hdr_size; 288e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.start = pos->start; 289e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.len = pos->end - pos->start; 290e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.pid = machine->pid; 291e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 292e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng memcpy(event->mmap.filename, pos->dso->long_name, 293e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pos->dso->long_name_len + 1); 294e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (process(tool, event, &synth_sample, machine) != 0) { 295e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rc = -1; 296e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 297e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 298e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 299e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 300e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng free(event); 301e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return rc; 302e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 303e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 304e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int __event__synthesize_thread(union perf_event *comm_event, 305e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *mmap_event, 306e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pid_t pid, int full, 307e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_event__handler_t process, 308e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_tool *tool, 309e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine) 310e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 311e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pid_t tgid = perf_event__synthesize_comm(tool, comm_event, pid, full, 312e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng process, machine); 313e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (tgid == -1) 314e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -1; 315e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, 316e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng process, machine); 317e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 318e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 319e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint perf_event__synthesize_thread_map(struct perf_tool *tool, 320e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct thread_map *threads, 321e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_event__handler_t process, 322e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine) 323e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 324e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *comm_event, *mmap_event; 325e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int err = -1, thread, j; 326e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 327e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); 328e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (comm_event == NULL) 329e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 330e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 331e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng mmap_event = malloc(sizeof(mmap_event->mmap) + machine->id_hdr_size); 332e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (mmap_event == NULL) 333e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out_free_comm; 334e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 335e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = 0; 336e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (thread = 0; thread < threads->nr; ++thread) { 337e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (__event__synthesize_thread(comm_event, mmap_event, 338e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng threads->map[thread], 0, 339e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng process, tool, machine)) { 340e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = -1; 341e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 342e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 343e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 344e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 345e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * comm.pid is set to thread group id by 346e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * perf_event__synthesize_comm 347e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 348e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if ((int) comm_event->comm.pid != threads->map[thread]) { 349e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng bool need_leader = true; 350e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 351e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* is thread group leader in thread_map? */ 352e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (j = 0; j < threads->nr; ++j) { 353e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if ((int) comm_event->comm.pid == threads->map[j]) { 354e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng need_leader = false; 355e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 356e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 357e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 358e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 359e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* if not, generate events for it */ 360e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (need_leader && 361e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng __event__synthesize_thread(comm_event, 362e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng mmap_event, 363e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng comm_event->comm.pid, 0, 364e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng process, tool, machine)) { 365e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = -1; 366e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 367e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 368e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 369e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 370e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng free(mmap_event); 371e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengout_free_comm: 372e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng free(comm_event); 373e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengout: 374e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return err; 375e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 376e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 377e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint perf_event__synthesize_threads(struct perf_tool *tool, 378e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_event__handler_t process, 379e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine) 380e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 381e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng DIR *proc; 382e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct dirent dirent, *next; 383e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *comm_event, *mmap_event; 384e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int err = -1; 385e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 386e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); 387e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (comm_event == NULL) 388e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 389e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 390e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng mmap_event = malloc(sizeof(mmap_event->mmap) + machine->id_hdr_size); 391e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (mmap_event == NULL) 392e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out_free_comm; 393e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 394e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng proc = opendir("/proc"); 395e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (proc == NULL) 396e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out_free_mmap; 397e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 398e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng while (!readdir_r(proc, &dirent, &next) && next) { 399e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char *end; 400e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pid_t pid = strtol(dirent.d_name, &end, 10); 401e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 402e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (*end) /* only interested in proper numerical dirents */ 403e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng continue; 404e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 405e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * We may race with exiting thread, so don't stop just because 406e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * one thread couldn't be synthesized. 407e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 408e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng __event__synthesize_thread(comm_event, mmap_event, pid, 1, 409e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng process, tool, machine); 410e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 411e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 412e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = 0; 413e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng closedir(proc); 414e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengout_free_mmap: 415e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng free(mmap_event); 416e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengout_free_comm: 417e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng free(comm_event); 418e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengout: 419e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return err; 420e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 421e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 422e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstruct process_symbol_args { 423e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *name; 424e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng u64 start; 425e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 426e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 427e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int find_symbol_cb(void *arg, const char *name, char type, 428e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng u64 start) 429e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 430e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct process_symbol_args *args = arg; 431e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 432e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 433e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * Must be a function or at least an alias, as in PARISC64, where "_text" is 434e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * an 'A' to the same address as "_stext". 435e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 436e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!(symbol_type__is_a(type, MAP__FUNCTION) || 437e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng type == 'A') || strcmp(name, args->name)) 438e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 439e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 440e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng args->start = start; 441e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 1; 442e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 443e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 444e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint perf_event__synthesize_kernel_mmap(struct perf_tool *tool, 445e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_event__handler_t process, 446e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine, 447e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *symbol_name) 448e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 449e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size_t size; 450e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *filename, *mmap_name; 451e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char path[PATH_MAX]; 452e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char name_buff[PATH_MAX]; 453e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct map *map; 454e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int err; 455e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 456e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * We should get this from /sys/kernel/sections/.text, but till that is 457e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * available use this, and after it is use this as a fallback for older 458e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * kernels. 459e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 460e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct process_symbol_args args = { .name = symbol_name, }; 461e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *event = zalloc((sizeof(event->mmap) + 462e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng machine->id_hdr_size)); 463e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (event == NULL) { 464e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_debug("Not enough memory synthesizing mmap event " 465e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "for kernel modules\n"); 466e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -1; 467e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 468e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 469e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng mmap_name = machine__mmap_name(machine, name_buff, sizeof(name_buff)); 470e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (machine__is_host(machine)) { 471e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 472e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * kernel uses PERF_RECORD_MISC_USER for user space maps, 473e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * see kernel/perf_event.c __perf_event_mmap 474e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 475e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->header.misc = PERF_RECORD_MISC_KERNEL; 476e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng filename = "/proc/kallsyms"; 477e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else { 478e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; 479e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (machine__is_default_guest(machine)) 480e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng filename = (char *) symbol_conf.default_guest_kallsyms; 481e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else { 482e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sprintf(path, "%s/proc/kallsyms", machine->root_dir); 483e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng filename = path; 484e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 485e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 486e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 487e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kallsyms__parse(filename, &args, find_symbol_cb) <= 0) { 488e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng free(event); 489e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -ENOENT; 490e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 491e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 492e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng map = machine->vmlinux_maps[MAP__FUNCTION]; 493e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size = snprintf(event->mmap.filename, sizeof(event->mmap.filename), 494e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "%s%s", mmap_name, symbol_name) + 1; 495e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size = PERF_ALIGN(size, sizeof(u64)); 496e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.header.type = PERF_RECORD_MMAP; 497e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.header.size = (sizeof(event->mmap) - 498e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (sizeof(event->mmap.filename) - size) + machine->id_hdr_size); 499e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.pgoff = args.start; 500e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.start = map->start; 501e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.len = map->end - event->mmap.start; 502e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.pid = machine->pid; 503e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 504e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = process(tool, event, &synth_sample, machine); 505e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng free(event); 506e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 507e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return err; 508e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 509e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 510e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengsize_t perf_event__fprintf_comm(union perf_event *event, FILE *fp) 511e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 512e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return fprintf(fp, ": %s:%d\n", event->comm.comm, event->comm.tid); 513e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 514e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 515e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint perf_event__process_comm(struct perf_tool *tool __maybe_unused, 516e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *event, 517e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample __maybe_unused, 518e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine) 519e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 520e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return machine__process_comm_event(machine, event); 521e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 522e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 523e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint perf_event__process_lost(struct perf_tool *tool __maybe_unused, 524e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *event, 525e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample __maybe_unused, 526e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine) 527e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 528e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return machine__process_lost_event(machine, event); 529e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 530e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 531e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengsize_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp) 532e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 533e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %s\n", 534e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.pid, event->mmap.tid, event->mmap.start, 535e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap.len, event->mmap.pgoff, event->mmap.filename); 536e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 537e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 538e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengsize_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp) 539e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 540e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 541e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng " %02x:%02x %"PRIu64" %"PRIu64"]: %s\n", 542e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap2.pid, event->mmap2.tid, event->mmap2.start, 543e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj, 544e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap2.min, event->mmap2.ino, 545e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap2.ino_generation, 546e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->mmap2.filename); 547e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 548e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 549e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint perf_event__process_mmap(struct perf_tool *tool __maybe_unused, 550e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *event, 551e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample __maybe_unused, 552e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine) 553e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 554e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return machine__process_mmap_event(machine, event); 555e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 556e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 557e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint perf_event__process_mmap2(struct perf_tool *tool __maybe_unused, 558e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *event, 559e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample __maybe_unused, 560e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine) 561e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 562e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return machine__process_mmap2_event(machine, event); 563e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 564e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 565e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengsize_t perf_event__fprintf_task(union perf_event *event, FILE *fp) 566e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 567e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return fprintf(fp, "(%d:%d):(%d:%d)\n", 568e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->fork.pid, event->fork.tid, 569e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->fork.ppid, event->fork.ptid); 570e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 571e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 572e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint perf_event__process_fork(struct perf_tool *tool __maybe_unused, 573e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *event, 574e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample __maybe_unused, 575e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine) 576e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 577e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return machine__process_fork_event(machine, event); 578e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 579e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 580e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint perf_event__process_exit(struct perf_tool *tool __maybe_unused, 581e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *event, 582e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample __maybe_unused, 583e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine) 584e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 585e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return machine__process_exit_event(machine, event); 586e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 587e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 588e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengsize_t perf_event__fprintf(union perf_event *event, FILE *fp) 589e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 590e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng size_t ret = fprintf(fp, "PERF_RECORD_%s", 591e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_event__name(event->header.type)); 592e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 593e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng switch (event->header.type) { 594e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng case PERF_RECORD_COMM: 595e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ret += perf_event__fprintf_comm(event, fp); 596e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 597e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng case PERF_RECORD_FORK: 598e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng case PERF_RECORD_EXIT: 599e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ret += perf_event__fprintf_task(event, fp); 600e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 601e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng case PERF_RECORD_MMAP: 602e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ret += perf_event__fprintf_mmap(event, fp); 603e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 604e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng case PERF_RECORD_MMAP2: 605e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ret += perf_event__fprintf_mmap2(event, fp); 606e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 607e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng default: 608e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ret += fprintf(fp, "\n"); 609e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 610e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 611e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return ret; 612e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 613e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 614e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint perf_event__process(struct perf_tool *tool __maybe_unused, 615e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *event, 616e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample __maybe_unused, 617e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine) 618e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 619e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return machine__process_event(machine, event); 620e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 621e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 622e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengvoid thread__find_addr_map(struct thread *self, 623e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine, u8 cpumode, 624e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng enum map_type type, u64 addr, 625e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct addr_location *al) 626e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 627e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct map_groups *mg = &self->mg; 628e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng bool load_map = false; 629e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 630e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->thread = self; 631e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->addr = addr; 632e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->cpumode = cpumode; 633e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->filtered = false; 634e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 635e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (machine == NULL) { 636e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->map = NULL; 637e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return; 638e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 639e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 640e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) { 641e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->level = 'k'; 642e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng mg = &machine->kmaps; 643e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng load_map = true; 644e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) { 645e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->level = '.'; 646e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { 647e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->level = 'g'; 648e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng mg = &machine->kmaps; 649e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng load_map = true; 650e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else { 651e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 652e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * 'u' means guest os user space. 653e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * TODO: We don't support guest user space. Might support late. 654e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 655e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) 656e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->level = 'u'; 657e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else 658e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->level = 'H'; 659e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->map = NULL; 660e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 661e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if ((cpumode == PERF_RECORD_MISC_GUEST_USER || 662e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng cpumode == PERF_RECORD_MISC_GUEST_KERNEL) && 663e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng !perf_guest) 664e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->filtered = true; 665e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if ((cpumode == PERF_RECORD_MISC_USER || 666e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng cpumode == PERF_RECORD_MISC_KERNEL) && 667e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng !perf_host) 668e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->filtered = true; 669e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 670e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return; 671e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 672e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengtry_again: 673e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->map = map_groups__find(mg, type, al->addr); 674e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (al->map == NULL) { 675e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 676e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * If this is outside of all known maps, and is a negative 677e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * address, try to look it up in the kernel dso, as it might be 678e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * a vsyscall or vdso (which executes in user-mode). 679e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * 680e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * XXX This is nasty, we should have a symbol list in the 681e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * "[vdso]" dso, but for now lets use the old trick of looking 682e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * in the whole kernel symbol list. 683e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 684e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if ((long long)al->addr < 0 && 685e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng cpumode == PERF_RECORD_MISC_USER && 686e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng machine && mg != &machine->kmaps) { 687e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng mg = &machine->kmaps; 688e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto try_again; 689e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 690e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else { 691e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 692e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * Kernel maps might be changed when loading symbols so loading 693e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * must be done prior to using kernel maps. 694e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 695e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (load_map) 696e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng map__load(al->map, machine->symbol_filter); 697e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->addr = al->map->map_ip(al->map, al->addr); 698e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 699e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 700e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 701e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengvoid thread__find_addr_location(struct thread *thread, struct machine *machine, 702e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng u8 cpumode, enum map_type type, u64 addr, 703e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct addr_location *al) 704e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 705e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng thread__find_addr_map(thread, machine, cpumode, type, addr, al); 706e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (al->map != NULL) 707e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->sym = map__find_symbol(al->map, al->addr, 708e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng machine->symbol_filter); 709e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else 710e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->sym = NULL; 711e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 712e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 713e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint perf_event__preprocess_sample(const union perf_event *event, 714e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine, 715e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct addr_location *al, 716e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample) 717e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 718e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 719e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct thread *thread = machine__findnew_thread(machine, sample->pid, 720e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sample->pid); 721e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 722e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (thread == NULL) 723e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -1; 724e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 725e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (symbol_conf.comm_list && 726e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng !strlist__has_entry(symbol_conf.comm_list, thread->comm)) 727e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out_filtered; 728e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 729e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng dump_printf(" ... thread: %s:%d\n", thread->comm, thread->tid); 730e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 731e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * Have we already created the kernel maps for this machine? 732e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * 733e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * This should have happened earlier, when we processed the kernel MMAP 734e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * events, but for older perf.data files there was no such thing, so do 735e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * it now. 736e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 737e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (cpumode == PERF_RECORD_MISC_KERNEL && 738e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng machine->vmlinux_maps[MAP__FUNCTION] == NULL) 739e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng machine__create_kernel_maps(machine); 740e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 741e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION, 742e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sample->ip, al); 743e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng dump_printf(" ...... dso: %s\n", 744e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->map ? al->map->dso->long_name : 745e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->level == 'H' ? "[hypervisor]" : "<not found>"); 746e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->sym = NULL; 747e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->cpu = sample->cpu; 748e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 749e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (al->map) { 750e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct dso *dso = al->map->dso; 751e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 752e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (symbol_conf.dso_list && 753e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (!dso || !(strlist__has_entry(symbol_conf.dso_list, 754e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng dso->short_name) || 755e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (dso->short_name != dso->long_name && 756e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng strlist__has_entry(symbol_conf.dso_list, 757e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng dso->long_name))))) 758e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out_filtered; 759e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 760e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->sym = map__find_symbol(al->map, al->addr, 761e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng machine->symbol_filter); 762e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 763e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 764e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (symbol_conf.sym_list && 765e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (!al->sym || !strlist__has_entry(symbol_conf.sym_list, 766e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->sym->name))) 767e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out_filtered; 768e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 769e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 770e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 771e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengout_filtered: 772e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng al->filtered = true; 773e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 774e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 775