testing/test-cases/crt-vars-libSystem.dtest/main.c

   1
   2 // BUILD:  $CC main.c            -o $BUILD_DIR/crt-vars-libSystem.exe
   3
   4 // RUN:  ./crt-vars-libSystem.exe
   5
   6 #include <stdio.h>
   7 #include <dlfcn.h>
   8 #include <string.h>
   9 #include <crt_externs.h>
  10 #include <mach-o/ldsyms.h>
  11
  12 // This struct is passed as fifth parameter to libSystem.dylib's initializer so it record
  13 // the address of crt global variables.
  14 struct ProgramVars
  15 {
  16     const void*        mh;
  17     int*               NXArgcPtr;
  18     char***            NXArgvPtr;
  19     char***            environPtr;
  20     char**             __prognamePtr;
  21 };
  22
  23
  24 // global variables defeined in crt1.o
  25 extern char**  NXArgv;
  26 extern int     NXArgc;
  27 extern char**  environ;
  28 extern char*   __progname;
  29
  30
  31 static const struct ProgramVars* sVars;
  32
  33 void __attribute__((constructor))
  34 myInit(int argc, const char* argv[], const char* envp[], const char* apple[], const struct ProgramVars* vars)
  35 {
  36     sVars = vars;
  37 }
  38
  39
  40 int main(int argc, const char* argv[])
  41 {
  42     printf("[BEGIN] crt-vars-libSystem\n");
  43     bool success = true;
  44
  45     if ( _NSGetArgv() != &NXArgv ) {
  46         printf("[FAIL] crt-libSystem: _NSGetArgv() != &NXArgv (%p!=%p) for %s", _NSGetArgv(), &NXArgv, argv[0]);
  47         success = false;
  48     }
  49
  50     if ( _NSGetArgc() != &NXArgc ) {
  51         printf("[FAIL] crt-libSystem: _NSGetArgc() != &NXArgc (%p!=%p) for %s", _NSGetArgc(), &NXArgc, argv[0]);
  52         success = false;
  53     }
  54
  55     if ( _NSGetEnviron() != &environ ) {
  56         printf("[FAIL] crt-libSystem: _NSGetEnviron() != &environv (%p!=%p) for %s", _NSGetEnviron(), &environ, argv[0]);
  57         success = false;
  58     }
  59
  60     if ( _NSGetProgname() != &__progname ) {
  61         printf("[FAIL] crt-libSystem: _NSGetProgname() != &__progname (%p!=%p) for %s", _NSGetProgname(), &__progname, argv[0]);
  62         success = false;
  63     }
  64
  65     if ( _NSGetMachExecuteHeader() != &_mh_execute_header ) {
  66         printf("[FAIL] crt-libSystem: _NSGetMachExecuteHeader() != &_mh_execute_headerv (%p!=%p) for %s", _NSGetMachExecuteHeader(), &_mh_execute_header, argv[0]);
  67         success = false;
  68     }
  69
  70     if ( sVars->NXArgvPtr != &NXArgv ) {
  71         printf("[FAIL] crt-libSystem: sVars->NXArgvPtr != &NXArg (%p!=%p) for %s", sVars->NXArgvPtr, &NXArgv, argv[0]);
  72         success = false;
  73     }
  74
  75     if ( sVars->NXArgcPtr != &NXArgc ) {
  76         printf("[FAIL] crt-libSystem: sVars->NXArgcPtr != &NXArgc (%p!=%p) for %s", sVars->NXArgcPtr, &NXArgc, argv[0]);
  77         success = false;
  78     }
  79
  80     if ( sVars->environPtr != &environ ) {
  81         printf("[FAIL] crt-libSystem: sVars->environPtr != &environ (%p!=%p) for %s", sVars->environPtr, &environ, argv[0]);
  82         success = false;
  83     }
  84
  85     if ( sVars->__prognamePtr != &__progname ) {
  86         printf("[FAIL] crt-libSystem: sVars->__prognamePtr != &__progname (%p!=%p) for %s", sVars->__prognamePtr, &__progname, argv[0]);
  87         success = false;
  88     }
  89
  90     if ( sVars->mh != &_mh_execute_header ) {
  91         printf("[FAIL] crt-libSystem: sVars->mh != &_mh_execute_header (%p!=%p) for %s", sVars->mh, &_mh_execute_header, argv[0]);
  92         success = false;
  93     }
  94
  95     if ( success )
  96         printf("[PASS] crt-vars-libSystem\n");
  97
  98     return 0;
  99 }
 100