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Add renaming of PDB files to avoid blocking them

This commit is contained in:
DmitriySalnikov 2024-01-11 15:33:35 +03:00
parent f6a78f83aa
commit b73e740786
18 changed files with 411 additions and 77 deletions
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61
core/extension/gdextension.cpp
View File

@ -729,53 +729,18 @@ GDExtensionInterfaceFunctionPtr GDExtension::get_interface_function(const String
Error GDExtension::open_library(const String &p_path, const String &p_entry_symbol) {
String abs_path = ProjectSettings::get_singleton()->globalize_path(p_path);
#if defined(WINDOWS_ENABLED) && defined(TOOLS_ENABLED)
// If running on the editor on Windows, we copy the library and open the copy.
// This is so the original file isn't locked and can be updated by a compiler.
bool library_copied = false;
if (Engine::get_singleton()->is_editor_hint()) {
if (!FileAccess::exists(abs_path)) {
ERR_PRINT("GDExtension library not found: " + abs_path);
return ERR_FILE_NOT_FOUND;
}
String actual_lib_path;
Error err = OS::get_singleton()->open_dynamic_library(abs_path, library, true, &actual_lib_path, Engine::get_singleton()->is_editor_hint());
// Copy the file to the same directory as the original with a prefix in the name.
// This is so relative path to dependencies are satisfied.
String copy_path = abs_path.get_base_dir().path_join("~" + abs_path.get_file());
// If there's a left-over copy (possibly from a crash) then delete it first.
if (FileAccess::exists(copy_path)) {
DirAccess::remove_absolute(copy_path);
}
Error copy_err = DirAccess::copy_absolute(abs_path, copy_path);
if (copy_err) {
ERR_PRINT("Error copying GDExtension library: " + abs_path);
return ERR_CANT_CREATE;
}
FileAccess::set_hidden_attribute(copy_path, true);
library_copied = true;
// Save the copied path so it can be deleted later.
temp_lib_path = copy_path;
// Use the copy to open the library.
abs_path = copy_path;
if (actual_lib_path.get_file() != abs_path.get_file()) {
// If temporary files are generated, let's change the library path to point at the original,
// because that's what we want to check to see if it's changed.
library_path = actual_lib_path.get_base_dir().path_join(p_path.get_file());
}
#endif
Error err = OS::get_singleton()->open_dynamic_library(abs_path, library, true, &library_path);
ERR_FAIL_COND_V_MSG(err == ERR_FILE_NOT_FOUND, err, "GDExtension dynamic library not found: " + abs_path);
ERR_FAIL_COND_V_MSG(err != OK, err, "Can't open GDExtension dynamic library: " + abs_path);
#if defined(WINDOWS_ENABLED) && defined(TOOLS_ENABLED)
// If we copied the file, let's change the library path to point at the original,
// because that's what we want to check to see if it's changed.
if (library_copied) {
library_path = library_path.get_base_dir() + "\\" + p_path.get_file();
}
#endif
void *entry_funcptr = nullptr;
err = OS::get_singleton()->get_dynamic_library_symbol_handle(library, p_entry_symbol, entry_funcptr, false);
@ -803,13 +768,6 @@ void GDExtension::close_library() {
ERR_FAIL_NULL(library);
OS::get_singleton()->close_dynamic_library(library);
#if defined(TOOLS_ENABLED) && defined(WINDOWS_ENABLED)
// Delete temporary copy of library if it exists.
if (!temp_lib_path.is_empty() && Engine::get_singleton()->is_editor_hint()) {
DirAccess::remove_absolute(temp_lib_path);
}
#endif
library = nullptr;
class_icon_paths.clear();
@ -1014,13 +972,6 @@ Error GDExtensionResourceLoader::load_gdextension_resource(const String &p_path,
err = p_extension->open_library(is_static_library ? String() : library_path, entry_symbol);
if (err != OK) {
#if defined(WINDOWS_ENABLED) && defined(TOOLS_ENABLED)
// If the DLL fails to load, make sure that temporary DLL copies are cleaned up.
if (Engine::get_singleton()->is_editor_hint()) {
DirAccess::remove_absolute(p_extension->get_temp_library_path());
}
#endif
// Unreference the extension so that this loading can be considered a failure.
p_extension.unref();

7
core/extension/gdextension.h
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@ -47,9 +47,6 @@ class GDExtension : public Resource {
void *library = nullptr; // pointer if valid,
String library_path;
#if defined(WINDOWS_ENABLED) && defined(TOOLS_ENABLED)
String temp_lib_path;
#endif
bool reloadable = false;
struct Extension {
@ -130,10 +127,6 @@ public:
Error open_library(const String &p_path, const String &p_entry_symbol);
void close_library();
#if defined(WINDOWS_ENABLED) && defined(TOOLS_ENABLED)
String get_temp_library_path() const { return temp_lib_path; }
#endif
enum InitializationLevel {
INITIALIZATION_LEVEL_CORE = GDEXTENSION_INITIALIZATION_CORE,
INITIALIZATION_LEVEL_SERVERS = GDEXTENSION_INITIALIZATION_SERVERS,

2
core/os/os.h
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@ -153,7 +153,7 @@ public:
virtual void alert(const String &p_alert, const String &p_title = "ALERT!");
virtual Error open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr) { return ERR_UNAVAILABLE; }
virtual Error open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr, bool p_generate_temp_files = false) { return ERR_UNAVAILABLE; }
virtual Error close_dynamic_library(void *p_library_handle) { return ERR_UNAVAILABLE; }
virtual Error get_dynamic_library_symbol_handle(void *p_library_handle, const String &p_name, void *&p_symbol_handle, bool p_optional = false) { return ERR_UNAVAILABLE; }

2
drivers/unix/os_unix.cpp
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@ -741,7 +741,7 @@ String OS_Unix::get_locale() const {
return locale;
}
Error OS_Unix::open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path, String *r_resolved_path) {
Error OS_Unix::open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path, String *r_resolved_path, bool p_generate_temp_files) {
String path = p_path;
if (FileAccess::exists(path) && path.is_relative_path()) {

2
drivers/unix/os_unix.h
View File

@ -55,7 +55,7 @@ public:
virtual Error get_entropy(uint8_t *r_buffer, int p_bytes) override;
virtual Error open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr) override;
virtual Error open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr, bool p_generate_temp_files = false) override;
virtual Error close_dynamic_library(void *p_library_handle) override;
virtual Error get_dynamic_library_symbol_handle(void *p_library_handle, const String &p_name, void *&p_symbol_handle, bool p_optional = false) override;

2
platform/android/os_android.cpp
View File

@ -162,7 +162,7 @@ Vector<String> OS_Android::get_granted_permissions() const {
return godot_java->get_granted_permissions();
}
Error OS_Android::open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path, String *r_resolved_path) {
Error OS_Android::open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path, String *r_resolved_path, bool p_generate_temp_files) {
String path = p_path;
bool so_file_exists = true;
if (!FileAccess::exists(path)) {

2
platform/android/os_android.h
View File

@ -113,7 +113,7 @@ public:
virtual void alert(const String &p_alert, const String &p_title) override;
virtual Error open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr) override;
virtual Error open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr, bool p_generate_temp_files = false) override;
virtual String get_name() const override;
virtual String get_distribution_name() const override;

2
platform/ios/os_ios.h
View File

@ -103,7 +103,7 @@ public:
virtual Vector<String> get_system_font_path_for_text(const String &p_font_name, const String &p_text, const String &p_locale = String(), const String &p_script = String(), int p_weight = 400, int p_stretch = 100, bool p_italic = false) const override;
virtual String get_system_font_path(const String &p_font_name, int p_weight = 400, int p_stretch = 100, bool p_italic = false) const override;
virtual Error open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr) override;
virtual Error open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr, bool p_generate_temp_files = false) override;
virtual Error close_dynamic_library(void *p_library_handle) override;
virtual Error get_dynamic_library_symbol_handle(void *p_library_handle, const String &p_name, void *&p_symbol_handle, bool p_optional = false) override;

2
platform/ios/os_ios.mm
View File

@ -219,7 +219,7 @@ _FORCE_INLINE_ String OS_IOS::get_framework_executable(const String &p_path) {
return p_path;
}
Error OS_IOS::open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path, String *r_resolved_path) {
Error OS_IOS::open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path, String *r_resolved_path, bool p_generate_temp_files) {
if (p_path.length() == 0) {
// Static xcframework.
p_library_handle = RTLD_SELF;

2
platform/macos/os_macos.h
View File

@ -85,7 +85,7 @@ public:
virtual void alert(const String &p_alert, const String &p_title = "ALERT!") override;
virtual Error open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr) override;
virtual Error open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr, bool p_generate_temp_files = false) override;
virtual MainLoop *get_main_loop() const override;

2
platform/macos/os_macos.mm
View File

@ -217,7 +217,7 @@ _FORCE_INLINE_ String OS_MacOS::get_framework_executable(const String &p_path) {
return p_path;
}
Error OS_MacOS::open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path, String *r_resolved_path) {
Error OS_MacOS::open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path, String *r_resolved_path, bool p_generate_temp_files) {
String path = get_framework_executable(p_path);
if (!FileAccess::exists(path)) {

2
platform/web/os_web.cpp
View File

@ -243,7 +243,7 @@ bool OS_Web::is_userfs_persistent() const {
return idb_available;
}
Error OS_Web::open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path, String *r_resolved_path) {
Error OS_Web::open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path, String *r_resolved_path, bool p_generate_temp_files) {
String path = p_path.get_file();
p_library_handle = dlopen(path.utf8().get_data(), RTLD_NOW);
ERR_FAIL_NULL_V_MSG(p_library_handle, ERR_CANT_OPEN, vformat("Can't open dynamic library: %s. Error: %s.", p_path, dlerror()));

2
platform/web/os_web.h
View File

@ -108,7 +108,7 @@ public:
void alert(const String &p_alert, const String &p_title = "ALERT!") override;
Error open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr) override;
Error open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr, bool p_generate_temp_files = false) override;
void resume_audio();

1
platform/windows/SCsub
View File

@ -17,6 +17,7 @@ common_win = [
"joypad_windows.cpp",
"tts_windows.cpp",
"windows_terminal_logger.cpp",
"windows_utils.cpp",
"native_menu_windows.cpp",
"gl_manager_windows_native.cpp",
"gl_manager_windows_angle.cpp",

63
platform/windows/os_windows.cpp
View File

@ -34,6 +34,7 @@
#include "joypad_windows.h"
#include "lang_table.h"
#include "windows_terminal_logger.h"
#include "windows_utils.h"
#include "core/debugger/engine_debugger.h"
#include "core/debugger/script_debugger.h"
@ -269,6 +270,10 @@ void OS_Windows::finalize() {
}
void OS_Windows::finalize_core() {
while (!temp_libraries.is_empty()) {
_remove_temp_library(temp_libraries.last()->key);
}
FileAccessWindows::finalize();
timeEndPeriod(1);
@ -354,7 +359,7 @@ void debug_dynamic_library_check_dependencies(const String &p_root_path, const S
}
#endif
Error OS_Windows::open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path, String *r_resolved_path) {
Error OS_Windows::open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path, String *r_resolved_path, bool p_generate_temp_files) {
String path = p_path.replace("/", "\\");
if (!FileAccess::exists(path)) {
@ -364,6 +369,35 @@ Error OS_Windows::open_dynamic_library(const String &p_path, void *&p_library_ha
ERR_FAIL_COND_V(!FileAccess::exists(path), ERR_FILE_NOT_FOUND);
// Here we want a copy to be loaded.
// This is so the original file isn't locked and can be updated by a compiler.
if (p_generate_temp_files) {
// Copy the file to the same directory as the original with a prefix in the name.
// This is so relative path to dependencies are satisfied.
String copy_path = path.get_base_dir().path_join("~" + path.get_file());
// If there's a left-over copy (possibly from a crash) then delete it first.
if (FileAccess::exists(copy_path)) {
DirAccess::remove_absolute(copy_path);
}
Error copy_err = DirAccess::copy_absolute(path, copy_path);
if (copy_err) {
ERR_PRINT("Error copying library: " + path);
return ERR_CANT_CREATE;
}
FileAccess::set_hidden_attribute(copy_path, true);
// Save the copied path so it can be deleted later.
path = copy_path;
Error pdb_err = WindowsUtils::copy_and_rename_pdb(path);
if (pdb_err != OK && pdb_err != ERR_SKIP) {
WARN_PRINT(vformat("Failed to rename the PDB file. The original PDB file for '%s' will be loaded.", path));
}
}
typedef DLL_DIRECTORY_COOKIE(WINAPI * PAddDllDirectory)(PCWSTR);
typedef BOOL(WINAPI * PRemoveDllDirectory)(DLL_DIRECTORY_COOKIE);
@ -378,8 +412,12 @@ Error OS_Windows::open_dynamic_library(const String &p_path, void *&p_library_ha
}
p_library_handle = (void *)LoadLibraryExW((LPCWSTR)(path.utf16().get_data()), nullptr, (p_also_set_library_path && has_dll_directory_api) ? LOAD_LIBRARY_SEARCH_DEFAULT_DIRS : 0);
#ifdef DEBUG_ENABLED
if (!p_library_handle) {
if (p_generate_temp_files) {
DirAccess::remove_absolute(path);
}
#ifdef DEBUG_ENABLED
DWORD err_code = GetLastError();
HashSet<String> checekd_libs;
@ -397,8 +435,10 @@ Error OS_Windows::open_dynamic_library(const String &p_path, void *&p_library_ha
} else {
ERR_FAIL_V_MSG(ERR_CANT_OPEN, vformat("Can't open dynamic library: %s. Error: %s.", p_path, format_error_message(err_code)));
}
#endif
}
#else
#ifndef DEBUG_ENABLED
ERR_FAIL_NULL_V_MSG(p_library_handle, ERR_CANT_OPEN, vformat("Can't open dynamic library: %s. Error: %s.", p_path, format_error_message(GetLastError())));
#endif
@ -410,6 +450,10 @@ Error OS_Windows::open_dynamic_library(const String &p_path, void *&p_library_ha
*r_resolved_path = path;
}
if (p_generate_temp_files) {
temp_libraries[p_library_handle] = path;
}
return OK;
}
@ -417,9 +461,22 @@ Error OS_Windows::close_dynamic_library(void *p_library_handle) {
if (!FreeLibrary((HMODULE)p_library_handle)) {
return FAILED;
}
// Delete temporary copy of library if it exists.
_remove_temp_library(p_library_handle);
return OK;
}
void OS_Windows::_remove_temp_library(void *p_library_handle) {
if (temp_libraries.has(p_library_handle)) {
String path = temp_libraries[p_library_handle];
DirAccess::remove_absolute(path);
WindowsUtils::remove_temp_pdbs(path);
temp_libraries.erase(p_library_handle);
}
}
Error OS_Windows::get_dynamic_library_symbol_handle(void *p_library_handle, const String &p_name, void *&p_symbol_handle, bool p_optional) {
p_symbol_handle = (void *)GetProcAddress((HMODULE)p_library_handle, p_name.utf8().get_data());
if (!p_symbol_handle) {

5
platform/windows/os_windows.h
View File

@ -127,6 +127,9 @@ class OS_Windows : public OS {
bool dwrite_init = false;
bool dwrite2_init = false;
HashMap<void *, String> temp_libraries;
void _remove_temp_library(void *p_library_handle);
String _get_default_fontname(const String &p_font_name) const;
DWRITE_FONT_WEIGHT _weight_to_dw(int p_weight) const;
DWRITE_FONT_STRETCH _stretch_to_dw(int p_stretch) const;
@ -155,7 +158,7 @@ public:
virtual Error get_entropy(uint8_t *r_buffer, int p_bytes) override;
virtual Error open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr) override;
virtual Error open_dynamic_library(const String &p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr, bool p_generate_temp_files = false) override;
virtual Error close_dynamic_library(void *p_library_handle) override;
virtual Error get_dynamic_library_symbol_handle(void *p_library_handle, const String &p_name, void *&p_symbol_handle, bool p_optional = false) override;

280
platform/windows/windows_utils.cpp Normal file
View File

@ -0,0 +1,280 @@
/**************************************************************************/
/* windows_utils.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "windows_utils.h"
#ifdef WINDOWS_ENABLED
#include "core/error/error_macros.h"
#include "core/io/dir_access.h"
#include "core/io/file_access.h"
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#undef FAILED // Overrides Error::FAILED
// dbghelp is linked only in DEBUG_ENABLED builds.
#ifdef DEBUG_ENABLED
#include <dbghelp.h>
#endif
#include <winnt.h>
HashMap<String, Vector<String>> WindowsUtils::temp_pdbs;
Error WindowsUtils::copy_and_rename_pdb(const String &p_dll_path) {
#ifdef DEBUG_ENABLED
// 1000 ought to be enough for anybody, in case the debugger does not unblock previous PDBs.
// Usually no more than 2 will be used.
const int max_pdb_names = 1000;
struct PDBResourceInfo {
uint32_t address = 0;
String path;
} pdb_info;
// Open and read the PDB information if available.
{
ULONG dbg_info_size = 0;
DWORD dbg_info_position = 0;
{
// The custom LoadLibraryExW is used instead of open_dynamic_library
// to avoid loading the original PDB into the debugger.
HMODULE library_ptr = LoadLibraryExW((LPCWSTR)(p_dll_path.utf16().get_data()), NULL, LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE);
ERR_FAIL_NULL_V_MSG(library_ptr, ERR_FILE_CANT_OPEN, vformat("Failed to load library '%s'.", p_dll_path));
IMAGE_DEBUG_DIRECTORY *dbg_dir = (IMAGE_DEBUG_DIRECTORY *)ImageDirectoryEntryToDataEx(library_ptr, FALSE, IMAGE_DIRECTORY_ENTRY_DEBUG, &dbg_info_size, NULL);
bool has_debug = dbg_dir && dbg_dir->Type == IMAGE_DEBUG_TYPE_CODEVIEW;
if (has_debug) {
dbg_info_position = dbg_dir->PointerToRawData;
dbg_info_size = dbg_dir->SizeOfData;
}
ERR_FAIL_COND_V_MSG(!FreeLibrary((HMODULE)library_ptr), FAILED, vformat("Failed to free library '%s'.", p_dll_path));
if (!has_debug) {
// Skip with no debugging symbols.
return ERR_SKIP;
}
}
struct CV_HEADER {
DWORD Signature;
DWORD Offset;
};
const DWORD nb10_magic = '01BN';
struct CV_INFO_PDB20 {
CV_HEADER CvHeader; // CvHeader.Signature = "NB10"
DWORD Signature;
DWORD Age;
BYTE PdbFileName[1];
};
const DWORD rsds_magic = 'SDSR';
struct CV_INFO_PDB70 {
DWORD Signature; // "RSDS"
BYTE Guid[16];
DWORD Age;
BYTE PdbFileName[1];
};
Vector<uint8_t> dll_data;
{
Error err = OK;
Ref<FileAccess> file = FileAccess::open(p_dll_path, FileAccess::READ, &err);
ERR_FAIL_COND_V_MSG(err != OK, err, vformat("Failed to read library '%s'.", p_dll_path));
file->seek(dbg_info_position);
dll_data = file->get_buffer(dbg_info_size);
ERR_FAIL_COND_V_MSG(file->get_error() != OK, file->get_error(), vformat("Failed to read data from library '%s'.", p_dll_path));
}
const char *raw_pdb_path = nullptr;
int raw_pdb_offset = 0;
DWORD *pdb_info_signature = (DWORD *)dll_data.ptr();
if (*pdb_info_signature == rsds_magic) {
raw_pdb_path = (const char *)(((CV_INFO_PDB70 *)pdb_info_signature)->PdbFileName);
raw_pdb_offset = offsetof(CV_INFO_PDB70, PdbFileName);
} else if (*pdb_info_signature == nb10_magic) {
// Not even sure if this format still exists anywhere...
raw_pdb_path = (const char *)(((CV_INFO_PDB20 *)pdb_info_signature)->PdbFileName);
raw_pdb_offset = offsetof(CV_INFO_PDB20, PdbFileName);
} else {
ERR_FAIL_V_MSG(FAILED, vformat("Unknown PDB format in '%s'.", p_dll_path));
}
String utf_path;
Error err = utf_path.parse_utf8(raw_pdb_path);
ERR_FAIL_COND_V_MSG(err != OK, err, vformat("Failed to read PDB path from '%s'.", p_dll_path));
pdb_info.path = utf_path;
pdb_info.address = dbg_info_position + raw_pdb_offset;
}
String dll_base_dir = p_dll_path.get_base_dir();
String copy_pdb_path = pdb_info.path;
// Attempting to find the PDB by absolute and relative paths.
if (copy_pdb_path.is_relative_path()) {
copy_pdb_path = dll_base_dir.path_join(copy_pdb_path);
if (!FileAccess::exists(copy_pdb_path)) {
copy_pdb_path = dll_base_dir.path_join(copy_pdb_path.get_file());
}
} else if (!FileAccess::exists(copy_pdb_path)) {
copy_pdb_path = dll_base_dir.path_join(copy_pdb_path.get_file());
}
ERR_FAIL_COND_V_MSG(!FileAccess::exists(copy_pdb_path), FAILED, vformat("File '%s' does not exist.", copy_pdb_path));
String new_pdb_base_name = p_dll_path.get_file().get_basename() + "_";
// Checking the available space for the updated string
// and trying to shorten it if there is not much space.
{
// e.g. 999.pdb
const uint8_t suffix_size = String::num_characters((int64_t)max_pdb_names - 1) + 4;
// e.g. ~lib_ + 1 for the \0
const uint8_t min_base_size = 5 + 1;
int original_path_size = pdb_info.path.utf8().length();
CharString utf8_name = new_pdb_base_name.utf8();
int new_expected_buffer_size = utf8_name.length() + suffix_size;
// Since we have limited space inside the DLL to patch the path to the PDB,
// it is necessary to limit the size based on the number of bytes occupied by the string.
if (new_expected_buffer_size > original_path_size) {
ERR_FAIL_COND_V_MSG(original_path_size < min_base_size + suffix_size, FAILED, vformat("The original PDB path size in bytes is too small: '%s'. Expected size: %d or more bytes, but available %d.", pdb_info.path, min_base_size + suffix_size, original_path_size));
utf8_name.resize(original_path_size - suffix_size + 1); // +1 for the \0
utf8_name[utf8_name.size() - 1] = '\0';
new_pdb_base_name.parse_utf8(utf8_name);
new_pdb_base_name[new_pdb_base_name.length() - 1] = '_'; // Restore the last '_'
WARN_PRINT(vformat("The original path size of '%s' in bytes was too small to fit the new name, so it was shortened to '%s%d.pdb'.", pdb_info.path, new_pdb_base_name, max_pdb_names - 1));
}
}
// Delete old PDB files.
for (const String &file : DirAccess::get_files_at(dll_base_dir)) {
if (file.begins_with(new_pdb_base_name) && file.ends_with(".pdb")) {
String path = dll_base_dir.path_join(file);
// Just try to delete without showing any errors.
Error err = DirAccess::remove_absolute(path);
if (err == OK && temp_pdbs[p_dll_path].has(path)) {
temp_pdbs[p_dll_path].erase(path);
}
}
}
// Try to copy PDB with new name and patch DLL.
Ref<DirAccess> d = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
for (int i = 0; i < max_pdb_names; i++) {
String new_pdb_name = vformat("%s%d.pdb", new_pdb_base_name, i);
String new_pdb_path = dll_base_dir.path_join(new_pdb_name);
Error err = OK;
Ref<FileAccess> test_pdb_is_locked = FileAccess::open(new_pdb_path, FileAccess::READ_WRITE, &err);
if (err == ERR_FILE_CANT_OPEN) {
// If the file is blocked, continue searching.
continue;
} else if (err != OK && err != ERR_FILE_NOT_FOUND) {
ERR_FAIL_V_MSG(err, vformat("Failed to open '%s' to check if it is locked.", new_pdb_path));
}
err = d->copy(copy_pdb_path, new_pdb_path);
ERR_FAIL_COND_V_MSG(err != OK, err, vformat("Failed to copy PDB from '%s' to '%s'.", copy_pdb_path, new_pdb_path));
temp_pdbs[p_dll_path].append(new_pdb_path);
Ref<FileAccess> file = FileAccess::open(p_dll_path, FileAccess::READ_WRITE, &err);
ERR_FAIL_COND_V_MSG(err != OK, err, vformat("Failed to open '%s' to patch the PDB path.", p_dll_path));
int original_path_size = pdb_info.path.utf8().length();
// Double-check file bounds.
ERR_FAIL_INDEX_V_MSG(pdb_info.address + original_path_size, file->get_length(), FAILED, vformat("Failed to write a new PDB path. Probably '%s' has been changed.", p_dll_path));
Vector<uint8_t> u8 = new_pdb_name.to_utf8_buffer();
file->seek(pdb_info.address);
file->store_buffer(u8);
// Terminate string and fill the remaining part of the original string with the '\0'.
// Can be replaced by file->store_8('\0');
Vector<uint8_t> padding_buffer;
padding_buffer.resize((int64_t)original_path_size - u8.size());
padding_buffer.fill('\0');
file->store_buffer(padding_buffer);
ERR_FAIL_COND_V_MSG(err != OK, err, vformat("Failed to write a new PDB path to '%s'.", p_dll_path));
return OK;
}
ERR_FAIL_V_MSG(FAILED, vformat("Failed to find an unblocked PDB name for '%s' among %d files.", p_dll_path, max_pdb_names));
#else
WARN_PRINT_ONCE("Renaming PDB files is only available in debug builds. If your libraries use PDB files, then the original ones will be used.");
return ERR_SKIP;
#endif
}
void WindowsUtils::remove_temp_pdbs(const String &p_dll_path) {
#ifdef DEBUG_ENABLED
if (temp_pdbs.has(p_dll_path)) {
Vector<String> removed;
int failed = 0;
const int failed_limit = 10;
for (const String &pdb : temp_pdbs[p_dll_path]) {
if (FileAccess::exists(pdb)) {
Error err = DirAccess::remove_absolute(pdb);
if (err == OK) {
removed.append(pdb);
} else {
failed++;
if (failed <= failed_limit) {
print_verbose("Failed to remove temp PDB: " + pdb);
}
}
} else {
removed.append(pdb);
}
}
if (failed > failed_limit) {
print_verbose(vformat("And %d more PDB files could not be removed....", failed - failed_limit));
}
for (const String &pdb : removed) {
temp_pdbs[p_dll_path].erase(pdb);
}
}
#endif
}
#endif // WINDOWS_ENABLED

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platform/windows/windows_utils.h Normal file
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/**************************************************************************/
/* windows_utils.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef WINDOWS_UTILS_H
#define WINDOWS_UTILS_H
#ifdef WINDOWS_ENABLED
#include "core/string/ustring.h"
#include "core/templates/hash_map.h"
class WindowsUtils {
static HashMap<String, Vector<String>> temp_pdbs;
public:
static Error copy_and_rename_pdb(const String &p_dll_path);
static void remove_temp_pdbs(const String &p_dll_path);
};
#endif // WINDOWS_ENABLED
#endif // WINDOWS_UTILS_H