CMake/testDynamicLoader.cxx
KWSys Upstream 773b36e5d4 KWSys 2016-11-09 (18c65411)
Code extracted from:

    http://public.kitware.com/KWSys.git

at commit 18c654114de3aa65429542f95308720bc68f9231 (master).

Upstream Shortlog
-----------------

Brad King (14):
      37306a1c FStream: Quiet unused argument warning
      15e90a3c Sort includes to stabilize include order w.r.t. clang-format
      26509227 Copyright.txt: Add notice of copyright by contributors
      fc42d3f2 Add temporary script to filter license notices
      c41c1bc4 Simplify KWSys per-source license notices
      1d4c0b4a Remove temporary script that filtered license notices
      a4f5ef79 SystemInformation: Remove stray comment
      8649a886 kwsysPrivate: Protect KWSYS_HEADER macro from clang-format
      89b98af5 Configure clang-format for KWSys source tree
      547dacad Add a script to run clang-format on the entire source tree
      aa94be0c CONTRIBUTING: Add a section on coding style
      6604c4b6 Empty commit at end of history preceding clang-format style transition
      2b3e2b1c Tell Git to not export 'clang-format' infrastructure
      18c65411 FStream: Include Configure.hxx before other headers

Kitware Robot (1):
      6c973b46 Revise C++ coding style using clang-format
2016-11-09 09:22:56 -05:00

118 lines
3.7 KiB
C++

/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing#kwsys for details. */
#include "kwsysPrivate.h"
#include KWSYS_HEADER(DynamicLoader.hxx)
#if defined(__BEOS__) || defined(__HAIKU__)
#include <be/kernel/OS.h> /* disable_debugger() API. */
#endif
// Work-around CMake dependency scanning limitation. This must
// duplicate the above list of headers.
#if 0
#include "DynamicLoader.hxx.in"
#endif
#include <iostream>
#include <string>
// Include with <> instead of "" to avoid getting any in-source copy
// left on disk.
#include <testSystemTools.h>
static std::string GetLibName(const char* lname)
{
// Construct proper name of lib
std::string slname;
slname = EXECUTABLE_OUTPUT_PATH;
#ifdef CMAKE_INTDIR
slname += "/";
slname += CMAKE_INTDIR;
#endif
slname += "/";
slname += kwsys::DynamicLoader::LibPrefix();
slname += lname;
slname += kwsys::DynamicLoader::LibExtension();
return slname;
}
/* libname = Library name (proper prefix, proper extension)
* System = symbol to lookup in libname
* r1: should OpenLibrary succeed ?
* r2: should GetSymbolAddress succeed ?
* r3: should CloseLibrary succeed ?
*/
static int TestDynamicLoader(const char* libname, const char* symbol, int r1,
int r2, int r3)
{
std::cerr << "Testing: " << libname << std::endl;
kwsys::DynamicLoader::LibraryHandle l =
kwsys::DynamicLoader::OpenLibrary(libname);
// If result is incompatible with expectation just fails (xor):
if ((r1 && !l) || (!r1 && l)) {
std::cerr << kwsys::DynamicLoader::LastError() << std::endl;
return 1;
}
kwsys::DynamicLoader::SymbolPointer f =
kwsys::DynamicLoader::GetSymbolAddress(l, symbol);
if ((r2 && !f) || (!r2 && f)) {
std::cerr << kwsys::DynamicLoader::LastError() << std::endl;
return 1;
}
#ifndef __APPLE__
int s = kwsys::DynamicLoader::CloseLibrary(l);
if ((r3 && !s) || (!r3 && s)) {
std::cerr << kwsys::DynamicLoader::LastError() << std::endl;
return 1;
}
#else
(void)r3;
#endif
return 0;
}
int testDynamicLoader(int argc, char* argv[])
{
#if defined(_WIN32)
SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX);
#elif defined(__BEOS__) || defined(__HAIKU__)
disable_debugger(1);
#endif
int res = 0;
if (argc == 3) {
// User specify a libname and symbol to check.
res = TestDynamicLoader(argv[1], argv[2], 1, 1, 1);
return res;
}
// dlopen() on Syllable before 11/22/2007 doesn't return 0 on error
#ifndef __SYLLABLE__
// Make sure that inexistent lib is giving correct result
res += TestDynamicLoader("azerty_", "foo_bar", 0, 0, 0);
// Make sure that random binary file cannot be assimilated as dylib
res += TestDynamicLoader(TEST_SYSTEMTOOLS_SOURCE_DIR "/testSystemTools.bin",
"wp", 0, 0, 0);
#endif
#ifdef __linux__
// This one is actually fun to test, since dlopen is by default
// loaded...wonder why :)
res += TestDynamicLoader("foobar.lib", "dlopen", 0, 1, 0);
res += TestDynamicLoader("libdl.so", "dlopen", 1, 1, 1);
res += TestDynamicLoader("libdl.so", "TestDynamicLoader", 1, 0, 1);
#endif
// Now try on the generated library
std::string libname = GetLibName(KWSYS_NAMESPACE_STRING "TestDynload");
res += TestDynamicLoader(libname.c_str(), "dummy", 1, 0, 1);
res += TestDynamicLoader(libname.c_str(), "TestDynamicLoaderSymbolPointer",
1, 1, 1);
res += TestDynamicLoader(libname.c_str(), "_TestDynamicLoaderSymbolPointer",
1, 0, 1);
res += TestDynamicLoader(libname.c_str(), "TestDynamicLoaderData", 1, 1, 1);
res += TestDynamicLoader(libname.c_str(), "_TestDynamicLoaderData", 1, 0, 1);
return res;
}