mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-23 08:00:20 +00:00
6e19ab2bbc
We have a new, improved string type coming up in AK (OOM aware, no null state), and while it's going to use UTF-8, the name UTF8String is a mouthful - so let's free up the String name by renaming the existing class. Making the old one have an annoying name will hopefully also help with quick adoption :^)
85 lines
1.9 KiB
C++
85 lines
1.9 KiB
C++
/*
|
|
* Copyright (c) 2021, Gunnar Beutner <gunnar@beutner.name>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/DeprecatedString.h>
|
|
#include <AK/Types.h>
|
|
#include <bits/dlfcn_integration.h>
|
|
#include <dlfcn.h>
|
|
#include <string.h>
|
|
|
|
// These are filled in by the dynamic loader.
|
|
DlCloseFunction __dlclose;
|
|
DlOpenFunction __dlopen;
|
|
DlSymFunction __dlsym;
|
|
DlAddrFunction __dladdr;
|
|
|
|
// FIXME: use thread_local and a String once TLS works
|
|
#ifdef NO_TLS
|
|
char* s_dlerror_text = NULL;
|
|
bool s_dlerror_retrieved = false;
|
|
#else
|
|
__thread char* s_dlerror_text = NULL;
|
|
__thread bool s_dlerror_retrieved = false;
|
|
#endif
|
|
|
|
static void store_error(DeprecatedString const& error)
|
|
{
|
|
free(s_dlerror_text);
|
|
s_dlerror_text = strdup(error.characters());
|
|
s_dlerror_retrieved = false;
|
|
}
|
|
|
|
int dlclose(void* handle)
|
|
{
|
|
auto result = __dlclose(handle);
|
|
if (result.is_error()) {
|
|
store_error(result.error().text);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
char* dlerror()
|
|
{
|
|
if (s_dlerror_retrieved) {
|
|
free(s_dlerror_text);
|
|
s_dlerror_text = nullptr;
|
|
}
|
|
s_dlerror_retrieved = true;
|
|
return const_cast<char*>(s_dlerror_text);
|
|
}
|
|
|
|
void* dlopen(char const* filename, int flags)
|
|
{
|
|
auto result = __dlopen(filename, flags);
|
|
if (result.is_error()) {
|
|
store_error(result.error().text);
|
|
return nullptr;
|
|
}
|
|
return result.value();
|
|
}
|
|
|
|
void* dlsym(void* handle, char const* symbol_name)
|
|
{
|
|
auto result = __dlsym(handle, symbol_name);
|
|
if (result.is_error()) {
|
|
store_error(result.error().text);
|
|
return nullptr;
|
|
}
|
|
return result.value();
|
|
}
|
|
|
|
int dladdr(void* addr, Dl_info* info)
|
|
{
|
|
auto result = __dladdr(addr, info);
|
|
if (result.is_error()) {
|
|
// FIXME: According to the man page glibc does _not_ make the error
|
|
// available via dlerror(), however we do. Does this break anything?
|
|
store_error(result.error().text);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|