hello/hello.c

   1 #include <stdio.h>
   2 #include <unistd.h>
   3 #include <sys/mman.h>
   4
   5 #include "../libmarkers/marker.h"
   6 #include "usterr.h"
   7 #include "tracer.h"
   8
   9 void probe(const struct marker *mdata,
  10                 void *probe_private, void *call_private,
  11                 const char *fmt, va_list *args)
  12 {
  13         printf("In probe\n");
  14 }
  15
  16 //ust// void try_map()
  17 //ust// {
  18 //ust//         char *m;
  19 //ust//
  20 //ust//         /* maybe add MAP_LOCKED */
  21 //ust//         m = mmap(NULL, 4096, PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_POPULATE , -1, 0);
  22 //ust//         if(m == (char*)-1) {
  23 //ust//                 perror("mmap");
  24 //ust//                 return;
  25 //ust//         }
  26 //ust//
  27 //ust//         printf("The mapping is at %p.\n", m);
  28 //ust//         strcpy(m, "Hello, Mapping!");
  29 //ust// }
  30
  31 int main()
  32 {
  33         int result;
  34
  35         init_ustrelay_transport();
  36
  37         char trace_name[] = "theusttrace";
  38         char trace_type[] = "usttrace";
  39
  40         marker_probe_register("abc", "testmark", "", probe, NULL);
  41         marker_probe_register("metadata", "core_marker_id", "channel %s name %s event_id %hu int #1u%zu long #1u%zu pointer #1u%zu size_t #1u%zu alignment #1u%u", probe, NULL);
  42
  43         result = ltt_trace_setup(trace_name);
  44         if(result < 0) {
  45                 ERR("ltt_trace_setup failed");
  46                 return 1;
  47         }
  48
  49 //ust// result = ltt_trace_set_type(trace_name, trace_type);
  50 //ust// if(result < 0) {
  51 //ust//         ERR("ltt_trace_set_type failed");
  52 //ust//         return 1;
  53 //ust// }
  54
  55         result = ltt_trace_alloc(trace_name);
  56         if(result < 0) {
  57                 ERR("ltt_trace_alloc failed");
  58                 return 1;
  59         }
  60
  61 //      try_map();
  62
  63         printf("Hello, World!\n");
  64
  65
  66         trace_mark(abc, testmark, "", MARK_NOARGS);
  67
  68         scanf("%*s");
  69
  70         return 0;
  71 }