src/functional/tls_local_exec.c

   1 #include <stdint.h>
   2 #include <string.h>
   3 #include <pthread.h>
   4 #include "test.h"
   5
   6 static __thread char d1 = 11;
   7 static __thread char d64 __attribute__ ((aligned(64))) = 22;
   8 static __thread char d4096 __attribute__ ((aligned(4096))) = 33;
   9 static __thread char z1 = 0;
  10 static __thread char z64 __attribute__ ((aligned(64))) = 0;
  11 static __thread char z4096 __attribute__ ((aligned(4096))) = 0;
  12 static __thread const char *s1 = "s1";
  13
  14 static int tnum;
  15
  16 #define CHECK(c, fmt, ...) do{ \
  17         if (!(c)) \
  18                 t_error("[thread %d]: "#c" failed"fmt".\n", tnum, __VA_ARGS__); \
  19 }while(0)
  20
  21 static unsigned ptrmod(void *p, unsigned m)
  22 {
  23         volatile unsigned n = (uintptr_t)p;
  24         return n % m;
  25 }
  26
  27 static void *check(void *arg)
  28 {
  29         tnum++;
  30
  31         CHECK(d1 == 11, " want 11 got %d", d1);
  32         CHECK(d64 == 22, " want 22 got %d", d64);
  33         CHECK(d4096 == 33, " want 33 got %d", d4096);
  34
  35         CHECK(ptrmod(&d64, 64) == 0, " address is %p, want 64 byte alignment", &d64);
  36         CHECK(ptrmod(&d4096, 4096) == 0, " address is %p, want 4096 byte alignment", &d4096);
  37
  38         CHECK(z1 == 0, " want 0 got %d", z1);
  39         CHECK(z64 == 0, " want 0 got %d", z64);
  40         CHECK(z4096 == 0, " want 0 got %d", z4096);
  41
  42         CHECK(ptrmod(&z64, 64) == 0, " address is %p, want 64 byte alignment", &z64);
  43         CHECK(ptrmod(&z4096, 4096) == 0, " address is %p, want 4096 byte alignment", &z4096);
  44
  45         CHECK(!strcmp(s1, "s1"), " want s1 got %s", s1);
  46         return 0;
  47 }
  48
  49 int main()
  50 {
  51         pthread_t td;
  52
  53         check(0);
  54         CHECK(pthread_create(&td, 0, check, 0) == 0, "", "");
  55         CHECK(pthread_join(td, 0) == 0, "", "");
  56
  57         return t_status;
  58 }