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Experiment msvc

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This commit is contained in:
Christoffer Lerno
2024-06-09 23:28:49 +02:00
parent 8e0dfab67e
commit 5787752e54
2 changed files with 84 additions and 261 deletions
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1
src/compiler/windows_support.c
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@@ -17,7 +17,6 @@ static WindowsSDK *sdk = NULL;
#if PLATFORM_WINDOWS #if PLATFORM_WINDOWS
WindowsSDK get_windows_link_paths(void); WindowsSDK get_windows_link_paths(void);
void free_windows_link_paths(WindowsSDK* obj);
static WindowsSDK loaded; static WindowsSDK loaded;
WindowsSDK *windows_get_sdk(void) WindowsSDK *windows_get_sdk(void)

344
src/utils/find_msvc.c
View File

@@ -1,6 +1,6 @@
#include "lib.h" #include "lib.h"
#if PLATFORM_WINDOWS || 1 #if PLATFORM_WINDOWS
#include <windows.h> #include <windows.h>
#include <string.h> #include <string.h>
@@ -9,268 +9,34 @@
#include <stdbool.h> #include <stdbool.h>
#include <io.h> // For _get_osfhandle #include <io.h> // For _get_osfhandle
void free_windows_link_paths(WindowsSDK *obj) static char *find_visual_studio(void);
{ static char *find_windows_kit_root(void);
free(obj->vs_library_path);
free(obj->windows_sdk_ucrt_library_path);
free(obj->windows_sdk_um_library_path);
}
typedef struct
{
int windows_sdk_version; // Zero if no Windows SDK found.
wchar_t *windows_sdk_root;
wchar_t *windows_sdk_um_library_path;
wchar_t *windows_sdk_ucrt_library_path;
char *vs_library_path;
} Find_Result;
Find_Result find_visual_studio_and_windows_sdk();
void free_resources(Find_Result* result);
WindowsSDK get_windows_link_paths() WindowsSDK get_windows_link_paths()
{ {
Find_Result paths = find_visual_studio_and_windows_sdk();
WindowsSDK out = {0}; WindowsSDK out = {0};
// note: WideCharToMultiByte doesn't seem to do null termination. char *path = find_windows_kit_root();
// I'm wary of manually adding a null terminator, so hopefully this is reliable.
// This wouldn't be a problem if windows used UTF-8 like the rest of the world >:( if (!path)
out.windows_sdk_um_library_path = win_utf16to8(paths.windows_sdk_um_library_path); {
out.windows_sdk_ucrt_library_path = win_utf16to8(paths.windows_sdk_ucrt_library_path); error_exit("Failed to find windows kit root.");
out.vs_library_path = paths.vs_library_path; }
free_resources(&paths);
out.windows_sdk_um_library_path = str_printf("%s\\um\\x64", path);
out.windows_sdk_ucrt_library_path = str_printf("%s\\ucrt\\x64", path);
out.vs_library_path = find_visual_studio();
return out; return out;
} }
// Everything past here is taken from microsoft_craziness.h: static char *find_visual_studio(void)
// https://gist.github.com/ActuallyaDeviloper/cd25b190743234d58079d6b08a8631e3
// Retrieved 2021-11-25
//
// Credit to Jonathan Blow, Kalinovcic, and ActuallyaDeviloper.
void free_resources(Find_Result *result)
{
free(result->windows_sdk_root);
free(result->windows_sdk_um_library_path);
free(result->windows_sdk_ucrt_library_path);
free(result->vs_library_path);
}
typedef struct
{
int32_t best_version[4]; // For Windows 8 versions, only two of these numbers are used.
wchar_t *best_name;
} Version_Data;
bool os_file_exists(wchar_t* name)
{
// @Robustness: What flags do we really want to check here?
DWORD attrib = GetFileAttributesW(name);
if (attrib == INVALID_FILE_ATTRIBUTES) return false;
if (attrib & FILE_ATTRIBUTE_DIRECTORY) return false;
return true;
}
#define concat2(a, b) concat(a, b, NULL, NULL)
#define concat3(a, b, c) concat(a, b, c, NULL)
#define concat4(a, b, c, d) concat(a, b, c, d)
wchar_t* concat(wchar_t* a, wchar_t* b, wchar_t* c, wchar_t* d) {
// Concatenate up to 4 wide strings together. Allocated with malloc.
// If you don't like that, use a programming language that actually
// helps you with using custom allocators. Or just edit the code.
size_t len_a = wcslen(a);
size_t len_b = wcslen(b);
size_t len_c = 0;
if (c) len_c = wcslen(c);
size_t len_d = 0;
if (d) len_d = wcslen(d);
wchar_t* result = (wchar_t*)malloc((len_a + len_b + len_c + len_d + 1) * 2);
memcpy(result, a, len_a * 2);
memcpy(result + len_a, b, len_b * 2);
if (c) memcpy(result + len_a + len_b, c, len_c * 2);
if (d) memcpy(result + len_a + len_b + len_c, d, len_d * 2);
result[len_a + len_b + len_c + len_d] = 0;
return result;
}
typedef void (*Visit_Proc_W)(wchar_t* short_name, wchar_t* full_name, Version_Data* data);
bool visit_files_w(wchar_t *dir_name, Version_Data *data, Visit_Proc_W proc)
{
// Visit everything in one folder (non-recursively). If it's a directory
// that doesn't start with ".", call the visit proc on it. The visit proc
// will see if the filename conforms to the expected versioning pattern.
WIN32_FIND_DATAW find_data;
wchar_t *wildcard_name = concat2(dir_name, L"\\*");
HANDLE handle = FindFirstFileW(wildcard_name, &find_data);
free(wildcard_name);
if (handle == INVALID_HANDLE_VALUE) return false;
while (true)
{
if ((find_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && (find_data.cFileName[0] != '.'))
{
wchar_t *full_name = concat3(dir_name, L"\\", find_data.cFileName);
proc(find_data.cFileName, full_name, data);
free(full_name);
}
BOOL success = FindNextFileW(handle, &find_data);
if (!success) break;
}
FindClose(handle);
return true;
}
void win10_best(wchar_t* short_name, wchar_t* full_name, Version_Data* data)
{
// Find the Windows 10 subdirectory with the highest version number.
int i0, i1, i2, i3;
int success = swscanf_s(short_name, L"%d.%d.%d.%d", &i0, &i1, &i2, &i3);
if (success < 4) return;
if (i0 < data->best_version[0]) return;
else if (i0 == data->best_version[0]) {
if (i1 < data->best_version[1]) return;
else if (i1 == data->best_version[1]) {
if (i2 < data->best_version[2]) return;
else if (i2 == data->best_version[2]) {
if (i3 < data->best_version[3]) return;
}
}
}
// we have to copy_string and free here because visit_files free's the full_name string
// after we execute this function, so Win*_Data would contain an invalid pointer.
if (data->best_name) free(data->best_name);
data->best_name = _wcsdup(full_name);
if (data->best_name)
{
data->best_version[0] = i0;
data->best_version[1] = i1;
data->best_version[2] = i2;
data->best_version[3] = i3;
}
}
bool find_windows_kit_root(Find_Result* result)
{
// Information about the Windows 10 and Windows 8 development kits
// is stored in the same place in the registry. We open a key
// to that place, first checking preferntially for a Windows 10 kit,
// then, if that's not found, a Windows 8 kit.
HKEY main_key;
LSTATUS rc = RegOpenKeyExW(HKEY_LOCAL_MACHINE, L"SOFTWARE\\Microsoft\\Windows Kits\\Installed Roots",
0, KEY_QUERY_VALUE | KEY_WOW64_32KEY | KEY_ENUMERATE_SUB_KEYS, &main_key);
if (rc != S_OK) return false;
// Look for a Windows 10 entry.
DWORD required_length;
rc = RegQueryValueExW(main_key, L"KitsRoot10", NULL, NULL, NULL, &required_length);
if (rc != S_OK) return false;
DWORD length = required_length + 1; // The +2 is for the maybe optional zero later on. Probably we are over-allocating.
uint16_t *value = (uint16_t *)cmalloc(length * 2);
if (!value) return false;
rc = RegQueryValueExW(main_key, L"KitsRoot10", NULL, NULL, (LPBYTE)value, &required_length); // We know that version is zero-terminated...
if (rc != S_OK) return false;
value[required_length / 2] = 0;
puts("Convert");
char *root = win_utf16to8(value);
printf("Now: %s\n", root);
scratch_buffer_clear();
scratch_buffer_append(root);
scratch_buffer_append("Lib\\*");
printf("Grabbing %s\n", scratch_buffer_to_string());
puts("Find first");
WIN32_FIND_DATAW find_data;
uint16_t *wildcard_name = win_utf8to16(scratch_buffer_to_string());
HANDLE handle = FindFirstFileW(wildcard_name, &find_data);
free(wildcard_name);
if (handle == INVALID_HANDLE_VALUE) return false;
char *best_file = NULL;
long long best = 0;
do
{
if (!(find_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) continue;
int i0, i1, i2, i3;
int success = swscanf_s(find_data.cFileName, L"%d.%d.%d.%d", &i0, &i1, &i2, &i3);
if (success < 4) continue;
long long ver = i0 * 0x1000000000000LL
+ i1 * 0x100000000LL
+ i2 * 0x10000LL
+ i3;
printf("%lld\n", ver);
if (ver > best)
{
best = ver;
if (best_file) free(best_file);
best_file = win_utf16to8(find_data.cFileName);
printf("Best now %s\n", best_file);
}
}
while (FindNextFileW(handle, &find_data));
FindClose(handle);
if (!best_file) return false;
printf("Best was %s\n", best_file);
error_exit("Ok bye");
if (root) {
wchar_t* windows10_lib = concat2(value, L"Lib");
free(root);
Version_Data data = { 0 };
visit_files_w(windows10_lib, &data, win10_best);
free(windows10_lib);
if (data.best_name) {
result->windows_sdk_version = 10;
result->windows_sdk_root = data.best_name;
RegCloseKey(main_key);
return true;
}
}
return false;
}
bool find_visual_studio(Find_Result* result)
{ {
// Let's locate vswhere.exe // Let's locate vswhere.exe
char *path = win_utf16to8(_wgetenv(L"ProgramFiles(x86)")); char *path = win_utf16to8(_wgetenv(L"ProgramFiles(x86)"));
scratch_buffer_clear(); scratch_buffer_clear();
DEBUG_LOG("Program files path: %s", path);
scratch_buffer_printf("\"%s\\Microsoft Visual Studio\\Installer\\vswhere.exe\" -latest -prerelease -property installationPath", path); scratch_buffer_printf("\"%s\\Microsoft Visual Studio\\Installer\\vswhere.exe\" -latest -prerelease -property installationPath", path);
const char *install_path = NULL; const char *install_path = NULL;
@@ -296,29 +62,87 @@ bool find_visual_studio(Find_Result* result)
// We have the version, so we're done with the path: // We have the version, so we're done with the path:
scratch_buffer_clear(); scratch_buffer_clear();
scratch_buffer_printf("%s\\VC\\Tools\\MSVC\\%s\\lib\\x64", install_path, version); scratch_buffer_printf("%s\\VC\\Tools\\MSVC\\%s\\lib\\x64", install_path, version);
result->vs_library_path = scratch_buffer_copy(); return scratch_buffer_copy();
return true;
} }
Find_Result find_visual_studio_and_windows_sdk() static char *find_windows_kit_root(void)
{ {
Find_Result result = {0}; HKEY main_key;
LSTATUS rc = RegOpenKeyExW(HKEY_LOCAL_MACHINE, L"SOFTWARE\\Microsoft\\Windows Kits\\Installed Roots",
0, KEY_QUERY_VALUE | KEY_WOW64_32KEY | KEY_ENUMERATE_SUB_KEYS, &main_key);
if (rc != S_OK) return NULL;
if (!find_windows_kit_root(&result)) // Look for a Windows 10 entry.
DWORD required_length;
rc = RegQueryValueExW(main_key, L"KitsRoot10", NULL, NULL, NULL, &required_length);
if (rc != S_OK) return NULL;
DWORD length = required_length + 1; // The +2 is for the maybe optional zero later on. Probably we are over-allocating.
uint16_t *value = (uint16_t *)cmalloc(length * 2);
if (!value) return NULL;
rc = RegQueryValueExW(main_key, L"KitsRoot10", NULL, NULL, (LPBYTE)value, &required_length); // We know that version is zero-terminated...
if (rc != S_OK)
{ {
error_exit("Failed to find windows kit root."); free(value);
return NULL;
} }
value[required_length / 2] = 0;
if (result.windows_sdk_root) // The key is found, so let's search the directory.
char *root = win_utf16to8(value);
free(value);
scratch_buffer_clear();
scratch_buffer_append(root);
scratch_buffer_append("Lib\\*");
WIN32_FIND_DATAW find_data;
uint16_t *wildcard_name = win_utf8to16(scratch_buffer_to_string());
HANDLE handle = FindFirstFileW(wildcard_name, &find_data);
free(wildcard_name);
if (handle == INVALID_HANDLE_VALUE) goto SEARCH_FAILED;
char *best_file = NULL;
long long best = 0;
do
{ {
result.windows_sdk_um_library_path = concat2(result.windows_sdk_root, L"\\um\\x64");
result.windows_sdk_ucrt_library_path = concat2(result.windows_sdk_root, L"\\ucrt\\x64"); if (!(find_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) continue;
int i0, i1, i2, i3;
int success = swscanf_s(find_data.cFileName, L"%d.%d.%d.%d", &i0, &i1, &i2, &i3);
if (success < 4) continue;
long long ver = i0 * 0x1000000000000LL
+ i1 * 0x100000000LL
+ i2 * 0x10000LL
+ i3;
if (ver > best)
{
best = ver;
if (best_file) free(best_file);
best_file = win_utf16to8(find_data.cFileName);
} }
}
while (FindNextFileW(handle, &find_data));
FindClose(handle);
find_visual_studio(&result); if (!best_file) goto SEARCH_FAILED;;
return result; scratch_buffer_clear();
scratch_buffer_append(root);
scratch_buffer_append("Lib\\");
scratch_buffer_append(best_file);
free(root);
free(best_file);
return scratch_buffer_to_string();
SEARCH_FAILED:
free(root);
return NULL;
} }
#endif #endif