#include "platform.h"

#include "path.h"

#include "tinyxml2.h"

#include <cstdlib>

#include <cstring>

#include <limits>

#include <vector>

cppcheck::Platform::Platform()

{

// This assumes the code you are checking is for the same architecture this is compiled on.

#if defined(_WIN64)

platform(Win64);

#elif defined(_WIN32)

platform(Win32A);

#else

platform(Native);

#endif

}

bool cppcheck::Platform::platform(cppcheck::Platform::PlatformType type)

{

switch (type) {

case Unspecified: // unknown type sizes (sizes etc are set but are not known)

case Native: // same as system this code was compile on

platformType = type;

sizeof_bool = sizeof(bool);

sizeof_short = sizeof(short);

sizeof_int = sizeof(int);

sizeof_long = sizeof(long);

sizeof_long_long = sizeof(long long);

sizeof_float = sizeof(float);

sizeof_double = sizeof(double);

sizeof_long_double = sizeof(long double);

sizeof_wchar_t = sizeof(wchar_t);

sizeof_size_t = sizeof(std::size_t);

sizeof_pointer = sizeof(void *);

if (type == Unspecified) {

defaultSign = '\0';

} else {

defaultSign = (std::numeric_limits<char>::is_signed) ? 's' : 'u';

}

char_bit = 8;

short_bit = char_bit * sizeof_short;

int_bit = char_bit * sizeof_int;

long_bit = char_bit * sizeof_long;

long_long_bit = char_bit * sizeof_long_long;

return true;

case Win32W:

case Win32A:

platformType = type;

sizeof_bool = 1; // 4 in Visual C++ 4.2

sizeof_short = 2;

sizeof_int = 4;

sizeof_long = 4;

sizeof_long_long = 8;

sizeof_float = 4;

sizeof_double = 8;

sizeof_long_double = 8;

sizeof_wchar_t = 2;

sizeof_size_t = 4;

sizeof_pointer = 4;

defaultSign = '\0';

char_bit = 8;

short_bit = char_bit * sizeof_short;

int_bit = char_bit * sizeof_int;

long_bit = char_bit * sizeof_long;

long_long_bit = char_bit * sizeof_long_long;

return true;

case Win64:

platformType = type;

sizeof_bool = 1;

sizeof_short = 2;

sizeof_int = 4;

sizeof_long = 4;

sizeof_long_long = 8;

sizeof_float = 4;

sizeof_double = 8;

sizeof_long_double = 8;

sizeof_wchar_t = 2;

sizeof_size_t = 8;

sizeof_pointer = 8;

defaultSign = '\0';

char_bit = 8;

short_bit = char_bit * sizeof_short;

int_bit = char_bit * sizeof_int;

long_bit = char_bit * sizeof_long;

long_long_bit = char_bit * sizeof_long_long;

return true;

case Unix32:

platformType = type;

sizeof_bool = 1;

sizeof_short = 2;

sizeof_int = 4;

sizeof_long = 4;

sizeof_long_long = 8;

sizeof_float = 4;

sizeof_double = 8;

sizeof_long_double = 12;

sizeof_wchar_t = 4;

sizeof_size_t = 4;

sizeof_pointer = 4;

defaultSign = '\0';

char_bit = 8;

short_bit = char_bit * sizeof_short;

int_bit = char_bit * sizeof_int;

long_bit = char_bit * sizeof_long;

long_long_bit = char_bit * sizeof_long_long;

return true;

case Unix64:

platformType = type;

sizeof_bool = 1;

sizeof_short = 2;

sizeof_int = 4;

sizeof_long = 8;

sizeof_long_long = 8;

sizeof_float = 4;

sizeof_double = 8;

sizeof_long_double = 16;

sizeof_wchar_t = 4;

sizeof_size_t = 8;

sizeof_pointer = 8;

defaultSign = '\0';

char_bit = 8;

short_bit = char_bit * sizeof_short;

int_bit = char_bit * sizeof_int;

long_bit = char_bit * sizeof_long;

long_long_bit = char_bit * sizeof_long_long;

return true;

case PlatformFile:

// sizes are not set.

return false;

}

// unsupported platform

return false;

}

bool cppcheck::Platform::loadPlatformFile(const char exename[], const std::string &filename)

{

// open file..

tinyxml2::XMLDocument doc;

if (doc.LoadFile(filename.c_str()) != tinyxml2::XML_SUCCESS) {

std::vector<std::string> filenames;

filenames.push_back(filename + ".xml");

if (exename && (std::string::npos != Path::fromNativeSeparators(exename).find('/'))) {

filenames.push_back(Path::getPathFromFilename(Path::fromNativeSeparators(exename)) + "platforms/" + filename);

filenames.push_back(Path::getPathFromFilename(Path::fromNativeSeparators(exename)) + "platforms/" + filename + ".xml");

}

#ifdef FILESDIR

std::string filesdir = FILESDIR;

if (!filesdir.empty() && filesdir[filesdir.size()-1] != '/')

filesdir += '/';

filenames.push_back(filesdir + ("platforms/" + filename));

filenames.push_back(filesdir + ("platforms/" + filename + ".xml"));

#endif

bool success = false;

for (const std::string & f : filenames) {

if (doc.LoadFile(f.c_str()) == tinyxml2::XML_SUCCESS) {

success = true;

break;

}

}

if (!success)

return false;

}

return loadFromXmlDocument(&doc);

}

bool cppcheck::Platform::loadFromXmlDocument(const tinyxml2::XMLDocument *doc)

{

const tinyxml2::XMLElement * const rootnode = doc->FirstChildElement();

if (!rootnode || std::strcmp(rootnode->Name(), "platform") != 0)

return false;

for (const tinyxml2::XMLElement *node = rootnode->FirstChildElement(); node; node = node->NextSiblingElement()) {

if (std::strcmp(node->Name(), "default-sign") == 0)

defaultSign = *node->GetText();

else if (std::strcmp(node->Name(), "char_bit") == 0)

char_bit = std::atoi(node->GetText());

else if (std::strcmp(node->Name(), "sizeof") == 0) {

for (const tinyxml2::XMLElement *sz = node->FirstChildElement(); sz; sz = sz->NextSiblingElement()) {

if (std::strcmp(sz->Name(), "short") == 0)

sizeof_short = std::atoi(sz->GetText());

else if (std::strcmp(sz->Name(), "bool") == 0)

sizeof_bool = std::atoi(sz->GetText());

else if (std::strcmp(sz->Name(), "int") == 0)

sizeof_int = std::atoi(sz->GetText());

else if (std::strcmp(sz->Name(), "long") == 0)

sizeof_long = std::atoi(sz->GetText());

else if (std::strcmp(sz->Name(), "long-long") == 0)

sizeof_long_long = std::atoi(sz->GetText());

else if (std::strcmp(sz->Name(), "float") == 0)

sizeof_float = std::atoi(sz->GetText());

else if (std::strcmp(sz->Name(), "double") == 0)

sizeof_double = std::atoi(sz->GetText());

else if (std::strcmp(sz->Name(), "long-double") == 0)

sizeof_long_double = std::atoi(sz->GetText());

else if (std::strcmp(sz->Name(), "pointer") == 0)

sizeof_pointer = std::atoi(sz->GetText());

else if (std::strcmp(sz->Name(), "size_t") == 0)

sizeof_size_t = std::atoi(sz->GetText());

else if (std::strcmp(sz->Name(), "wchar_t") == 0)

sizeof_wchar_t = std::atoi(sz->GetText());

}

}

}

short_bit = char_bit * sizeof_short;

int_bit = char_bit * sizeof_int;

long_bit = char_bit * sizeof_long;

long_long_bit = char_bit * sizeof_long_long;

platformType = PlatformFile;

return true;

}