dyld/unit-tests/test-cases/weak-external-reloc/realmain.c

   1
   2
   3 #include <stdio.h>  // fprintf(), NULL
   4 #include <stdlib.h> // exit(), EXIT_SUCCESS
   5
   6 #include "test.h" // PASS(), FAIL(), XPASS(), XFAIL()
   7
   8 // pfoo is in libfoo.dylib
   9 // libfoo.dylib also has weak foo[]
  10 // pfoo should be rebound to point into the foo[] in main
  11 int foo[] = { 5, 6, 7, 8 };
  12 extern int* pfoo;
  13
  14 // libfoo.dylib has a weak bar[]
  15 // libbar.dylib has a strong bar[]
  16 // at build  time linker  only sees weak bar in libfoo.dylib
  17 // at runtime, dyld uses strong bar in libbar.dylib
  18 extern int bar[];
  19 int* pbar = &bar[1];
  20
  21 // there is only one stuff, but it is weak
  22 // so we are testing the case when stuff is not overridden
  23 int __attribute__((weak)) stuff[] = { 1, 2, 3, 4, 5 };
  24 int* pstuff = &stuff[3];
  25
  26
  27 void realmain()
  28 {
  29         if ( *pfoo != 7 )
  30                 FAIL("weak-external-reloc, pfoo=%d", *pfoo);
  31         else if ( *pbar != 21 )
  32                 FAIL("weak-external-reloc, pbar=%d", *pbar);
  33         else if ( *pstuff != 4 )
  34                 FAIL("weak-external-reloc, pstuffr=%d", *pstuff);
  35         else
  36                 PASS("weak-external-reloc");
  37 }
  38
  39