testing/test-cases/env-DYLD_VERSIONED_LIBRARY_PATH-missing-dylibs.dtest/main.c

   1 // This tests DYLD_VERSIONED_LIBRARY_PATH where the library we are doing a versioned check against is only in the shared
   2 // cache and not on disk.  This is the case when macOS moves to MRM.
   3
   4 // libz.1.dylib was chosen as (on 10.15) it had a current version of 1.2.11 so we can write test dylibs with higer/lower versions
   5
   6 // BUILD(macos):  $CC foo.c -dynamiclib -DRESULT="1.0.0"  -current_version 1.0.0  -install_name /usr/lib/libz.1.dylib -o $BUILD_DIR/alt-1.0.0/libz.1.dylib
   7 // BUILD(macos):  $CC foo.c -dynamiclib -DRESULT="2000.0.0"  -current_version 2000.0.0  -install_name /usr/lib/libz.1.dylib -o $BUILD_DIR/alt-2000.0.0/libz.1.dylib
   8
   9 // BUILD(macos):  $CC main.c            -o $BUILD_DIR/env-DYLD_VERSIONED_LIBRARY_PATH-missing-dylibs.exe -lz
  10 // BUILD(macos):  $CC main.c            -o $BUILD_DIR/env-DYLD_VERSIONED_LIBRARY_PATH-1.0.0.exe -lz -Wl,-dyld_env,DYLD_VERSIONED_LIBRARY_PATH=@loader_path/alt-1.0.0
  11 // BUILD(macos):  $CC main.c            -o $BUILD_DIR/env-DYLD_VERSIONED_LIBRARY_PATH-2000.0.0.exe -lz -Wl,-dyld_env,DYLD_VERSIONED_LIBRARY_PATH=@loader_path/alt-2000.0.0
  12 // BUILD(macos):  $CC main.c            -o $BUILD_DIR/env-DYLD_VERSIONED_LIBRARY_PATH-missing-dylibs-dlopen.exe -DUSE_DLOPEN
  13
  14 // BUILD(macos):  $DYLD_ENV_VARS_ENABLE $BUILD_DIR/env-DYLD_VERSIONED_LIBRARY_PATH-missing-dylibs.exe
  15 // BUILD(macos):  $DYLD_ENV_VARS_ENABLE $BUILD_DIR/env-DYLD_VERSIONED_LIBRARY_PATH-missing-dylibs-dlopen.exe
  16
  17 // BUILD(ios,tvos,watchos,bridgeos):
  18
  19 // Use the host when we have no ENV variable, or we check against the 1.0.0 test dylib which is lower than the host
  20 // RUN: ./env-DYLD_VERSIONED_LIBRARY_PATH-missing-dylibs.exe "host"
  21 // RUN: DYLD_VERSIONED_LIBRARY_PATH=$RUN_DIR/alt-1.0.0 ./env-DYLD_VERSIONED_LIBRARY_PATH-missing-dylibs.exe "host"
  22 // RUN: ./env-DYLD_VERSIONED_LIBRARY_PATH-1.0.0.exe "host"
  23 // RUN: ./env-DYLD_VERSIONED_LIBRARY_PATH-missing-dylibs-dlopen.exe "host"
  24 // RUN: DYLD_VERSIONED_LIBRARY_PATH=$RUN_DIR/alt-1.0.0 ./env-DYLD_VERSIONED_LIBRARY_PATH-missing-dylibs-dlopen.exe "host"
  25
  26 // Use the 2000.0.0 dylib when its present
  27 // RUN: DYLD_VERSIONED_LIBRARY_PATH=$RUN_DIR/alt-2000.0.0 ./env-DYLD_VERSIONED_LIBRARY_PATH-missing-dylibs.exe "2000.0.0"
  28 // RUN: DYLD_VERSIONED_LIBRARY_PATH=$RUN_DIR/alt-2000.0.0 ./env-DYLD_VERSIONED_LIBRARY_PATH-1.0.0.exe "2000.0.0"
  29 // RUN: ./env-DYLD_VERSIONED_LIBRARY_PATH-2000.0.0.exe "2000.0.0"
  30 // RUN: DYLD_VERSIONED_LIBRARY_PATH=$RUN_DIR/alt-2000.0.0 ./env-DYLD_VERSIONED_LIBRARY_PATH-missing-dylibs-dlopen.exe "2000.0.0"
  31
  32 // 2000.0.0 should also override the 1.0.0 version if we specify both (in either order)
  33 // RUN: DYLD_VERSIONED_LIBRARY_PATH=$RUN_DIR/alt-1.0.0:$RUN_DIR/alt-2000.0.0 ./env-DYLD_VERSIONED_LIBRARY_PATH-missing-dylibs.exe "2000.0.0"
  34 // RUN: DYLD_VERSIONED_LIBRARY_PATH=$RUN_DIR/alt-2000.0.0:$RUN_DIR/alt-1.0.0 ./env-DYLD_VERSIONED_LIBRARY_PATH-missing-dylibs.exe "2000.0.0"
  35 // RUN: DYLD_VERSIONED_LIBRARY_PATH=$RUN_DIR/alt-1.0.0:$RUN_DIR/alt-2000.0.0 ./env-DYLD_VERSIONED_LIBRARY_PATH-missing-dylibs-dlopen.exe "2000.0.0"
  36 // RUN: DYLD_VERSIONED_LIBRARY_PATH=$RUN_DIR/alt-2000.0.0:$RUN_DIR/alt-1.0.0 ./env-DYLD_VERSIONED_LIBRARY_PATH-missing-dylibs-dlopen.exe "2000.0.0"
  37
  38 #include <stdio.h>  // fprintf(), NULL
  39 #include <stdlib.h> // exit(), EXIT_SUCCESS
  40 #include <string.h>
  41 #include <stdlib.h> // for atoi()
  42
  43 #include "test_support.h"
  44
  45 #if USE_DLOPEN
  46 #include <dlfcn.h>
  47 #else
  48 extern const char* zlibVersion(); // returns "1.2.11" on the host dylib
  49 #endif
  50
  51 int main(int argc, const char* argv[])
  52 {
  53         const char* expectedResult = argv[1];
  54
  55 #if USE_DLOPEN
  56     void * handle = dlopen("/usr/lib/libz.1.dylib", RTLD_LAZY);
  57     if (!handle) {
  58         FAIL("dlopen(\"%s\") failed with error \"%s\"", "/usr/lib/libz.1.dylib", dlerror());
  59     }
  60     const char* (*zlibVersion)() = dlsym(handle, "zlibVersion");
  61     if (!zlibVersion) {
  62         FAIL("dlsym(\"zlibVersion\") failed with error \"%s\"", dlerror());
  63     }
  64 #endif
  65
  66     const char* actualResult = zlibVersion();
  67     if ( !strcmp(expectedResult, "host") ) {
  68         // We don't know what the host version is, but we know we wanted it instead of the test dylibs
  69         if ( !strcmp(actualResult, "1.0.0") ) {
  70             FAIL("Using wrong dylib. zlibVersion() returned %s, expected host version", actualResult);
  71         } else {
  72             PASS("Success");
  73         }
  74     } else {
  75         if ( strcmp(actualResult, expectedResult) ) {
  76             FAIL("Using wrong dylib. zlibVersion() returned %s, expected %s", actualResult, expectedResult);
  77         } else {
  78             PASS("Success");
  79         }
  80     }
  81         return 0;
  82 }
  83