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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file LICENSE.rst or https://cmake.org/licensing for details. */
#include "cmBinUtilsWindowsPELinker.h"
#include <algorithm>
#include <iterator>
#include <sstream>
#include <utility>
#include <vector>
#include <cm/memory>
#include "cmBinUtilsWindowsPEDumpbinGetRuntimeDependenciesTool.h"
#include "cmBinUtilsWindowsPEObjdumpGetRuntimeDependenciesTool.h"
#include "cmRuntimeDependencyArchive.h"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
#ifdef _WIN32
# include <windows.h>
# include "cmsys/Encoding.hxx"
#endif
#ifdef _WIN32
namespace {
void ReplaceWithActualNameCasing(std::string& path)
{
WIN32_FIND_DATAW findData;
HANDLE hFind = ::FindFirstFileW(
cmsys::Encoding::ToWindowsExtendedPath(path).c_str(), &findData);
if (hFind != INVALID_HANDLE_VALUE) {
auto onDiskName = cmsys::Encoding::ToNarrow(findData.cFileName);
::FindClose(hFind);
path.replace(path.end() - onDiskName.size(), path.end(), onDiskName);
}
}
}
#endif
cmBinUtilsWindowsPELinker::cmBinUtilsWindowsPELinker(
cmRuntimeDependencyArchive* archive)
: cmBinUtilsLinker(archive)
{
}
bool cmBinUtilsWindowsPELinker::Prepare()
{
std::string tool = this->Archive->GetGetRuntimeDependenciesTool();
if (tool.empty()) {
std::vector<std::string> command;
if (this->Archive->GetGetRuntimeDependenciesCommand("dumpbin", command)) {
tool = "dumpbin";
} else {
tool = "objdump";
}
}
if (tool == "dumpbin") {
this->Tool =
cm::make_unique<cmBinUtilsWindowsPEDumpbinGetRuntimeDependenciesTool>(
this->Archive);
} else if (tool == "objdump") {
this->Tool =
cm::make_unique<cmBinUtilsWindowsPEObjdumpGetRuntimeDependenciesTool>(
this->Archive);
} else {
std::ostringstream e;
e << "Invalid value for CMAKE_GET_RUNTIME_DEPENDENCIES_TOOL: " << tool;
this->SetError(e.str());
return false;
}
return true;
}
bool cmBinUtilsWindowsPELinker::ScanDependencies(
std::string const& file, cmStateEnums::TargetType /* unused */)
{
std::vector<std::string> needed;
if (!this->Tool->GetFileInfo(file, needed)) {
return false;
}
struct WinPEDependency
{
WinPEDependency(std::string o)
: Original(std::move(o))
, LowerCase(cmSystemTools::LowerCase(Original))
{
}
std::string const Original;
std::string const LowerCase;
};
std::vector<WinPEDependency> depends;
depends.reserve(needed.size());
std::move(needed.begin(), needed.end(), std::back_inserter(depends));
std::string origin = cmSystemTools::GetFilenamePath(file);
for (auto const& lib : depends) {
if (!this->Archive->IsPreExcluded(lib.LowerCase)) {
std::string path;
bool resolved = false;
if (!this->ResolveDependency(lib.LowerCase, origin, path, resolved)) {
return false;
}
if (resolved) {
if (!this->Archive->IsPostExcluded(path)) {
#ifdef _WIN32
ReplaceWithActualNameCasing(path);
#else
path.replace(path.end() - lib.Original.size(), path.end(),
lib.Original);
#endif
bool unique;
this->Archive->AddResolvedPath(lib.Original, path, unique);
if (unique &&
!this->ScanDependencies(path, cmStateEnums::SHARED_LIBRARY)) {
return false;
}
}
} else {
this->Archive->AddUnresolvedPath(lib.Original);
}
}
}
return true;
}
bool cmBinUtilsWindowsPELinker::ResolveDependency(std::string const& name,
std::string const& origin,
std::string& path,
bool& resolved)
{
auto dirs = this->Archive->GetSearchDirectories();
#ifdef _WIN32
char buf[MAX_PATH];
unsigned int len;
if ((len = GetWindowsDirectoryA(buf, MAX_PATH)) > 0) {
dirs.insert(dirs.begin(), std::string(buf, len));
}
if ((len = GetSystemDirectoryA(buf, MAX_PATH)) > 0) {
dirs.insert(dirs.begin(), std::string(buf, len));
}
#endif
dirs.insert(dirs.begin(), origin);
for (auto const& searchPath : dirs) {
path = cmStrCat(searchPath, '/', name);
if (cmSystemTools::PathExists(path)) {
resolved = true;
return true;
}
}
resolved = false;
return true;
}
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