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windows_sdk.cpp
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/*
* Copyright (c) 2018 Andrew Kelley
*
* This file is part of zig, which is MIT licensed.
* See http://opensource.org/licenses/MIT
*/
#include "windows_sdk.h"
#if defined(_WIN32)
#include "windows_com.hpp"
#include <inttypes.h>
#include <assert.h>
const char *ZIG_WINDOWS_KIT_REG_KEY = "SOFTWARE\\Microsoft\\Windows Kits\\Installed Roots";
struct ZigWindowsSDKPrivate {
ZigWindowsSDK base;
};
enum NativeArch {
NativeArchArm,
NativeArchi386,
NativeArchx86_64,
};
#if defined(_M_ARM) || defined(__arm_)
static const NativeArch native_arch = NativeArchArm;
#endif
#if defined(_M_IX86) || defined(__i386__)
static const NativeArch native_arch = NativeArchi386;
#endif
#if defined(_M_X64) || defined(__x86_64__)
static const NativeArch native_arch = NativeArchx86_64;
#endif
void zig_free_windows_sdk(struct ZigWindowsSDK *sdk) {
if (sdk == nullptr) {
return;
}
free((void*)sdk->path10_ptr);
free((void*)sdk->version10_ptr);
free((void*)sdk->path81_ptr);
free((void*)sdk->version81_ptr);
free((void*)sdk->msvc_lib_dir_ptr);
}
static ZigFindWindowsSdkError find_msvc_lib_dir(ZigWindowsSDKPrivate *priv) {
//COM Smart Pointers requires explicit scope
{
HRESULT rc = CoInitializeEx(NULL, COINIT_MULTITHREADED);
if (rc != S_OK && rc != S_FALSE) {
goto com_done;
}
//This COM class is installed when a VS2017
ISetupConfigurationPtr setup_config;
rc = setup_config.CreateInstance(__uuidof(SetupConfiguration));
if (rc != S_OK) {
goto com_done;
}
IEnumSetupInstancesPtr all_instances;
rc = setup_config->EnumInstances(&all_instances);
if (rc != S_OK) {
goto com_done;
}
ISetupInstance* curr_instance;
ULONG found_inst;
while ((rc = all_instances->Next(1, &curr_instance, &found_inst) == S_OK)) {
BSTR bstr_inst_path;
rc = curr_instance->GetInstallationPath(&bstr_inst_path);
if (rc != S_OK) {
goto com_done;
}
//BSTRs are UTF-16 encoded, so we need to convert the string & adjust the length
//TODO call an actual function to do this
UINT bstr_path_len = *((UINT*)bstr_inst_path - 1);
ULONG tmp_path_len = bstr_path_len / 2 + 1;
char* conv_path = (char*)bstr_inst_path;
// TODO don't use alloca
char *tmp_path = (char*)alloca(tmp_path_len);
memset(tmp_path, 0, tmp_path_len);
uint32_t c = 0;
for (uint32_t i = 0; i < bstr_path_len; i += 2) {
tmp_path[c] = conv_path[i];
++c;
assert(c != tmp_path_len);
}
char output_path[4096];
output_path[0] = 0;
char *out_append_ptr = output_path;
out_append_ptr += sprintf(out_append_ptr, "%s\\", tmp_path);
char tmp_buf[4096];
sprintf(tmp_buf, "%s%s", output_path, "VC\\Auxiliary\\Build\\Microsoft.VCToolsVersion.default.txt");
FILE* tools_file = fopen(tmp_buf, "rb");
if (!tools_file) {
goto com_done;
}
memset(tmp_path, 0, tmp_path_len);
fgets(tmp_path, tmp_path_len, tools_file);
strtok(tmp_path, " \r\n");
fclose(tools_file);
out_append_ptr += sprintf(out_append_ptr, "VC\\Tools\\MSVC\\%s\\lib\\", tmp_path);
switch (native_arch) {
case NativeArchi386:
out_append_ptr += sprintf(out_append_ptr, "x86\\");
break;
case NativeArchx86_64:
out_append_ptr += sprintf(out_append_ptr, "x64\\");
break;
case NativeArchArm:
out_append_ptr += sprintf(out_append_ptr, "arm\\");
break;
}
sprintf(tmp_buf, "%s%s", output_path, "vcruntime.lib");
if (GetFileAttributesA(tmp_buf) != INVALID_FILE_ATTRIBUTES) {
priv->base.msvc_lib_dir_ptr = strdup(output_path);
if (priv->base.msvc_lib_dir_ptr == nullptr) {
return ZigFindWindowsSdkErrorOutOfMemory;
}
priv->base.msvc_lib_dir_len = strlen(priv->base.msvc_lib_dir_ptr);
return ZigFindWindowsSdkErrorNone;
}
}
}
com_done:;
HKEY key;
HRESULT rc = RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\VisualStudio\\SxS\\VS7", 0,
KEY_QUERY_VALUE | KEY_WOW64_32KEY, &key);
if (rc != ERROR_SUCCESS) {
return ZigFindWindowsSdkErrorNotFound;
}
DWORD dw_type = 0;
DWORD cb_data = 0;
rc = RegQueryValueEx(key, "14.0", NULL, &dw_type, NULL, &cb_data);
if ((rc == ERROR_FILE_NOT_FOUND) || (REG_SZ != dw_type)) {
return ZigFindWindowsSdkErrorNotFound;
}
char tmp_buf[4096];
RegQueryValueExA(key, "14.0", NULL, NULL, (LPBYTE)tmp_buf, &cb_data);
// RegQueryValueExA returns the length of the string INCLUDING the null terminator
char *tmp_buf_append_ptr = tmp_buf + (cb_data - 1);
tmp_buf_append_ptr += sprintf(tmp_buf_append_ptr, "VC\\Lib\\");
switch (native_arch) {
case NativeArchi386:
//x86 is in the root of the Lib folder
break;
case NativeArchx86_64:
tmp_buf_append_ptr += sprintf(tmp_buf_append_ptr, "amd64\\");
break;
case NativeArchArm:
tmp_buf_append_ptr += sprintf(tmp_buf_append_ptr, "arm\\");
break;
}
char *output_path = strdup(tmp_buf);
if (output_path == nullptr) {
return ZigFindWindowsSdkErrorOutOfMemory;
}
tmp_buf_append_ptr += sprintf(tmp_buf_append_ptr, "vcruntime.lib");
if (GetFileAttributesA(tmp_buf) != INVALID_FILE_ATTRIBUTES) {
priv->base.msvc_lib_dir_ptr = output_path;
priv->base.msvc_lib_dir_len = strlen(output_path);
return ZigFindWindowsSdkErrorNone;
} else {
free(output_path);
return ZigFindWindowsSdkErrorNotFound;
}
}
static ZigFindWindowsSdkError find_10_version(ZigWindowsSDKPrivate *priv) {
if (priv->base.path10_ptr == nullptr) {
return ZigFindWindowsSdkErrorNone;
}
char reg_query[MAX_PATH] = { 0 };
int n = snprintf(reg_query, MAX_PATH, "%s\\%s.0\\Installed Options", ZIG_WINDOWS_KIT_REG_KEY, priv->base.version10_ptr);
if (n < 0 || n >= MAX_PATH) {
return ZigFindWindowsSdkErrorPathTooLong;
}
HKEY options_key;
HRESULT rc;
rc = RegOpenKeyEx(HKEY_LOCAL_MACHINE, reg_query, 0,
KEY_QUERY_VALUE | KEY_WOW64_32KEY | KEY_ENUMERATE_SUB_KEYS, &options_key);
if (rc != ERROR_SUCCESS) {
return ZigFindWindowsSdkErrorNotFound;
}
const char *option_name = nullptr;
switch (native_arch) {
case NativeArchArm:
option_name = "OptionId.DesktopCPParm";
break;
case NativeArchx86_64:
option_name = "OptionId.DesktopCPPx64";
break;
case NativeArchi386:
option_name = "OptionId.DesktopCPPx86";
break;
default:
return ZigFindWindowsSdkErrorNotFound;
}
DWORD val_sz = sizeof(DWORD);
DWORD reg_val = 0;
DWORD type = REG_DWORD;
rc = RegQueryValueEx(options_key, option_name, NULL, &type, (LPBYTE)®_val, &val_sz);
if (rc != ERROR_SUCCESS || reg_val != 1) {
return ZigFindWindowsSdkErrorNotFound;
}
return ZigFindWindowsSdkErrorNone;
}
static ZigFindWindowsSdkError find_81_version(ZigWindowsSDKPrivate *priv) {
if (priv->base.path81_ptr == nullptr) {
return ZigFindWindowsSdkErrorNone;
}
char sdk_lib_dir[4096];
int n = snprintf(sdk_lib_dir, 4096, "%s\\Lib\\winv*", priv->base.path81_ptr);
if (n < 0 || n >= 4096) {
return ZigFindWindowsSdkErrorPathTooLong;
}
// enumerate files in sdk path looking for latest version
WIN32_FIND_DATA ffd;
HANDLE hFind = FindFirstFileA(sdk_lib_dir, &ffd);
if (hFind == INVALID_HANDLE_VALUE) {
return ZigFindWindowsSdkErrorNotFound;
}
int v0 = 0, v1 = 0;
for (;;) {
if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
int c0 = 0, c1 = 0;
sscanf(ffd.cFileName, "winv%d.%d", &c0, &c1);
if ( (c0 > v0) || (c0 == v0 && c1 > v1) ) {
v0 = c0, v1 = c1;
free((void*)priv->base.version81_ptr);
priv->base.version81_ptr = strdup(ffd.cFileName);
if (priv->base.version81_ptr == nullptr) {
FindClose(hFind);
return ZigFindWindowsSdkErrorOutOfMemory;
}
}
}
if (FindNextFile(hFind, &ffd) == 0) {
FindClose(hFind);
break;
}
}
priv->base.version81_len = strlen(priv->base.version81_ptr);
return ZigFindWindowsSdkErrorNone;
}
ZigFindWindowsSdkError zig_find_windows_sdk(struct ZigWindowsSDK **out_sdk) {
ZigWindowsSDKPrivate *priv = (ZigWindowsSDKPrivate*)calloc(1, sizeof(ZigWindowsSDKPrivate));
if (priv == nullptr) {
return ZigFindWindowsSdkErrorOutOfMemory;
}
HRESULT rc;
//note(dimenus): If this key doesn't exist, neither the Win 8 SDK nor the Win 10 SDK is installed
HKEY roots_key;
rc = RegOpenKeyEx(HKEY_LOCAL_MACHINE, ZIG_WINDOWS_KIT_REG_KEY, 0,
KEY_QUERY_VALUE | KEY_WOW64_32KEY | KEY_ENUMERATE_SUB_KEYS, &roots_key);
if (rc != ERROR_SUCCESS) {
zig_free_windows_sdk(&priv->base);
return ZigFindWindowsSdkErrorNotFound;
}
{
HKEY v10_key;
rc = RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Microsoft SDKs\\Windows\\v10.0", 0,
KEY_QUERY_VALUE | KEY_WOW64_32KEY | KEY_ENUMERATE_SUB_KEYS, &v10_key);
if (rc != ERROR_SUCCESS) {
goto find_win10_sdk_done;
}
DWORD tmp_buf_len = MAX_PATH;
priv->base.path10_ptr = (const char *)calloc(tmp_buf_len, 1);
if (priv->base.path10_ptr == nullptr) {
zig_free_windows_sdk(&priv->base);
return ZigFindWindowsSdkErrorOutOfMemory;
}
rc = RegQueryValueEx(v10_key, "InstallationFolder", NULL, NULL, (LPBYTE)priv->base.path10_ptr, &tmp_buf_len);
if (rc == ERROR_SUCCESS) {
priv->base.path10_len = tmp_buf_len - 1;
if (priv->base.path10_ptr[priv->base.path10_len - 1] == '\\') {
priv->base.path10_len -= 1;
}
} else {
free((void*)priv->base.path10_ptr);
priv->base.path10_ptr = nullptr;
}
priv->base.version10_ptr = (const char*)calloc(tmp_buf_len, 1);
rc = RegQueryValueEx(v10_key, "ProductVersion", NULL, NULL, (LPBYTE)priv->base.version10_ptr, &tmp_buf_len);
if (rc == ERROR_SUCCESS) {
snprintf((char*)priv->base.version10_ptr, MAX_PATH, "%s.0", priv->base.version10_ptr);
priv->base.version10_len = tmp_buf_len - 1 + 2; // note(dimenus): Microsoft doesn't include the .0 in the ProductVersion key....
} else {
free((void*)priv->base.version10_ptr);
priv->base.version10_ptr = nullptr;
}
}
find_win10_sdk_done:
{
DWORD tmp_buf_len = MAX_PATH;
priv->base.path81_ptr = (const char *)calloc(tmp_buf_len, 1);
if (priv->base.path81_ptr == nullptr) {
zig_free_windows_sdk(&priv->base);
return ZigFindWindowsSdkErrorOutOfMemory;
}
rc = RegQueryValueEx(roots_key, "KitsRoot81", NULL, NULL, (LPBYTE)priv->base.path81_ptr, &tmp_buf_len);
if (rc == ERROR_SUCCESS) {
priv->base.path81_len = tmp_buf_len - 1;
if (priv->base.path81_ptr[priv->base.path81_len - 1] == '\\') {
priv->base.path81_len -= 1;
}
} else {
free((void*)priv->base.path81_ptr);
priv->base.path81_ptr = nullptr;
}
}
{
ZigFindWindowsSdkError err = find_10_version(priv);
if (err == ZigFindWindowsSdkErrorOutOfMemory) {
zig_free_windows_sdk(&priv->base);
return err;
}
}
{
ZigFindWindowsSdkError err = find_81_version(priv);
if (err == ZigFindWindowsSdkErrorOutOfMemory) {
zig_free_windows_sdk(&priv->base);
return err;
}
}
{
ZigFindWindowsSdkError err = find_msvc_lib_dir(priv);
if (err == ZigFindWindowsSdkErrorOutOfMemory) {
zig_free_windows_sdk(&priv->base);
return err;
}
}
*out_sdk = &priv->base;
return ZigFindWindowsSdkErrorNone;
}
#else
void zig_free_windows_sdk(struct ZigWindowsSDK *sdk) {}
ZigFindWindowsSdkError zig_find_windows_sdk(struct ZigWindowsSDK **out_sdk) {
return ZigFindWindowsSdkErrorNotFound;
}
#endif