xnu-4570.1.46.tar.gz

[apple/xnu.git] / tools / stackshot / stackshot.c

diff --git a/tools/stackshot/stackshot.c b/tools/stackshot/stackshot.c
deleted file mode 100644 (file)
index 854e00a..0000000
--- a/tools/stackshot/stackshot.c
+++ /dev/null
@@ -1,192 +0,0 @@
-
-#include <stdio.h>
-#include <dispatch/dispatch.h>
-#include <sysexits.h>
-#include <inttypes.h>
-#include <string.h>
-#include <stdlib.h>
-#include <sys/syscall.h>
-#include <sys/wait.h>
-#include <mach/mach_time.h>
-#include <sys/stackshot.h>
-#include <sys/types.h>
-#include <kern/debug.h>
-#include <unistd.h>
-#include <assert.h>
-
-#include <kern/kcdata.h>
-
-#define        STACKSHOT_TAILSPIN (0x80000)
-
-uint64_t
-stackshot_get_mach_absolute_time(void *buffer, uint32_t size)
-{
-    kcdata_iter_t iter = kcdata_iter_find_type(kcdata_iter(buffer, size), KCDATA_TYPE_MACH_ABSOLUTE_TIME);
-    if (!kcdata_iter_valid(iter) || kcdata_iter_size(iter) < sizeof(uint64_t)) {
-        fprintf(stderr, "bad kcdata\n");
-        exit(1);
-    }
-    return *(uint64_t *)kcdata_iter_payload(iter);
-}
-
-static void usage(char **argv)
-{
-       fprintf (stderr, "usage: %s [-d] [-t] >file\n", argv[0]);
-    fprintf (stderr, "    -d      : take delta stackshot\n");
-    fprintf (stderr, "    -b      : get bootprofile\n");
-    fprintf (stderr, "    -t      : enable tailspin mode\n");
-    fprintf (stderr, "    -s      : fork a sleep process\n");
-    fprintf (stderr, "    -L      : disable loadinfo\n");
-    fprintf (stderr, "    -k      : active kernel threads only\n");
-    fprintf (stderr, "    -I      : disable io statistics\n");
-    fprintf (stderr, "    -p PID  : target a pid\n");
-       exit(1);
-}
-
-void forksleep() {
-    pid_t pid = fork();
-    if (pid < 0) {
-        perror("fork");
-        exit(1);
-    }
-
-    if (pid == 0) {
-        execlp("sleep", "sleep", "30", NULL);
-        perror("execlp");
-        exit(1);
-    }
-}
-
-
-int main(int argc, char **argv) {
-
-    uint32_t iostats = 0;
-    uint32_t active_kernel_threads_only = 0;
-    uint32_t tailspin = 0;
-    uint32_t bootprofile = 0;
-    uint32_t loadinfo = STACKSHOT_SAVE_LOADINFO | STACKSHOT_SAVE_KEXT_LOADINFO;
-    boolean_t delta = FALSE;
-    boolean_t sleep = FALSE;
-    pid_t pid = -1;
-    int c;
-
-    while ((c = getopt(argc, argv, "IkbLdtsp:")) != EOF) {
-        switch(c) {
-        case 'I':
-            iostats |= STACKSHOT_NO_IO_STATS;
-            break;
-        case 'k':
-            active_kernel_threads_only |= STACKSHOT_ACTIVE_KERNEL_THREADS_ONLY;
-            loadinfo &= ~STACKSHOT_SAVE_LOADINFO;
-            break;
-        case 'b':
-            bootprofile |= STACKSHOT_GET_BOOT_PROFILE;
-            break;
-        case 'L':
-            loadinfo = 0;
-            break;
-        case 't':
-            tailspin |= STACKSHOT_TAILSPIN;
-            break;
-        case 'd':
-            delta = TRUE;
-            break;
-        case 's':
-            sleep = TRUE;
-            break;
-        case 'p':
-            pid = atoi(optarg);
-            break;
-        case '?':
-        case 'h':
-        default:
-            usage(argv);
-            break;
-        }
-    }
-
-    if (optind < argc)
-    {
-        usage(argv);
-    }
-
-    void * config = stackshot_config_create();
-    if (!config) {
-        perror("stackshot_config_create");
-        return 1;
-    }
-    uint32_t flags =  loadinfo | STACKSHOT_SAVE_IMP_DONATION_PIDS | STACKSHOT_GET_DQ | STACKSHOT_KCDATA_FORMAT |
-        tailspin | bootprofile | active_kernel_threads_only | iostats;
-
-    int err = stackshot_config_set_flags(config, flags);
-    if (err != 0) {
-        perror("stackshot_config_set_flags");
-        return 1;
-    }
-
-    if (pid != -1) {
-        int err = stackshot_config_set_pid(config, pid);
-        if (err != 0) {
-            perror("stackshot_config_set_flags");
-            return 1;
-        }
-    }
-
-    err = stackshot_capture_with_config(config);
-    if (err != 0) {
-        perror("stackshot_capture_with_config");
-        return 1;
-    }
-
-    void *buf = stackshot_config_get_stackshot_buffer(config);
-    if (!buf) {
-        perror("stackshot_config_get_stackshot_buffer");
-        return 1;
-    }
-
-    uint32_t size = stackshot_config_get_stackshot_size(config);
-
-    if (delta) {
-        // output the original somewhere?
-
-        uint64_t time = stackshot_get_mach_absolute_time(buf, size);
-
-        err = stackshot_config_dealloc_buffer(config);
-        assert(!err);
-
-        flags |= STACKSHOT_COLLECT_DELTA_SNAPSHOT;
-        int err = stackshot_config_set_flags(config, flags);
-        if (err != 0) {
-            perror("stackshot_config_set_flags");
-            return 1;
-        }
-
-        err = stackshot_config_set_delta_timestamp(config, time);
-        if (err != 0) {
-            perror("stackshot_config_delta_timestamp");
-            return 1;
-        }
-
-        if (sleep) {
-            forksleep();
-        }
-        usleep(10000);
-
-        err = stackshot_capture_with_config(config);
-        if (err != 0) {
-            perror("stackshot_capture_with_config");
-            return 1;
-        }
-
-        buf = stackshot_config_get_stackshot_buffer(config);
-        if (!buf) {
-            perror("stackshot_config_get_stackshot_buffer");
-            return 1;
-        }
-
-        size = stackshot_config_get_stackshot_size(config);
-
-    }
-
-    fwrite(buf, size, 1, stdout);
-}