kProfiler2/tst.c

   1 #include <stdio.h>
   2
   3 #ifdef _MSC_VER
   4 void __cdecl _penter(void);
   5 void __cdecl _pexit(void);
   6 __declspec(naked) int  naked(void)
   7 {
   8     __asm
   9     {
  10         call    _penter
  11         call    _pexit
  12         xor     eax, eax
  13         ret
  14     }
  15 }
  16
  17 #endif
  18
  19 int bar(void)
  20 {
  21     unsigned i;
  22     for (i = 0; i < 1000; i += 7)
  23         i += i & 1;
  24     return i;
  25 }
  26
  27 int foo(void)
  28 {
  29     unsigned i, rc = 0;
  30     for (i = 0; i < 1000; i++)
  31         rc += bar();
  32 #ifdef _MSC_VER
  33     for (; i < 2000; i++)
  34         rc += naked();
  35 #endif
  36     return i;
  37 }
  38
  39 int main()
  40 {
  41     int rc;
  42     printf("hello");
  43     fflush(stdout);
  44     rc = foo();
  45     printf("world\n");
  46     return rc;
  47 }
  48