#import <wtf/Assertions.h>
#import <dlfcn.h>
#define SOFT_LINK_LIBRARY(lib) \
static void* lib##Library() \
{ \
static void* dylib = dlopen("/usr/lib/" #lib ".dylib", RTLD_NOW); \
ASSERT_WITH_MESSAGE(dylib, "%s", dlerror()); \
return dylib; \
}
#define SOFT_LINK_FRAMEWORK(framework) \
static void* framework##Library() \
{ \
static void* frameworkLibrary = dlopen("/System/Library/Frameworks/" #framework ".framework/" #framework, RTLD_NOW); \
ASSERT_WITH_MESSAGE(frameworkLibrary, "%s", dlerror()); \
return frameworkLibrary; \
}
#define SOFT_LINK_FRAMEWORK_OPTIONAL(framework) \
static void* framework##Library() \
{ \
static void* frameworkLibrary = dlopen("/System/Library/Frameworks/" #framework ".framework/" #framework, RTLD_NOW); \
return frameworkLibrary; \
}
#define SOFT_LINK_STAGED_FRAMEWORK(framework, unstagedLocation, version) \
static void* framework##Library() \
{ \
static void* frameworkLibrary = ^{ \
void* result = dlopen("/System/Library/" #unstagedLocation "/" #framework ".framework/Versions/" #version "/" #framework, RTLD_LAZY); \
if (!result) \
result = dlopen("/System/Library/StagedFrameworks/Safari/" #framework ".framework/Versions/" #version "/" #framework, RTLD_LAZY); \
return result; \
}(); \
ASSERT_WITH_MESSAGE(frameworkLibrary, "%s", dlerror()); \
return frameworkLibrary; \
}
#define SOFT_LINK_FRAMEWORK_IN_UMBRELLA(umbrella, framework) \
static void* framework##Library() \
{ \
static void* frameworkLibrary = dlopen("/System/Library/Frameworks/" #umbrella ".framework/Frameworks/" #framework ".framework/" #framework, RTLD_NOW); \
ASSERT_WITH_MESSAGE(frameworkLibrary, "%s", dlerror()); \
return frameworkLibrary; \
}
#define SOFT_LINK(framework, functionName, resultType, parameterDeclarations, parameterNames) \
static resultType init##functionName parameterDeclarations; \
static resultType (*softLink##functionName) parameterDeclarations = init##functionName; \
\
static resultType init##functionName parameterDeclarations \
{ \
softLink##functionName = (resultType (*) parameterDeclarations) dlsym(framework##Library(), #functionName); \
ASSERT_WITH_MESSAGE(softLink##functionName, "%s", dlerror()); \
return softLink##functionName parameterNames; \
}\
\
inline resultType functionName parameterDeclarations \
{\
return softLink##functionName parameterNames; \
}
#define SOFT_LINK_OPTIONAL(framework, functionName, resultType, callingConvention, parameterDeclarations) \
typedef resultType (*functionName##PtrType) parameterDeclarations; \
\
static functionName##PtrType functionName##Ptr() \
{ \
static functionName##PtrType ptr = reinterpret_cast<functionName##PtrType>(dlsym(framework##Library(), #functionName)); \
return ptr; \
}
#define SOFT_LINK_CLASS(framework, className) \
static Class init##className(); \
static Class (*get##className##Class)() = init##className; \
static Class class##className; \
\
static Class className##Function() \
{ \
return class##className; \
}\
\
static Class init##className() \
{ \
framework##Library(); \
class##className = objc_getClass(#className); \
ASSERT(class##className); \
get##className##Class = className##Function; \
return class##className; \
}
#define SOFT_LINK_POINTER(framework, name, type) \
static type init##name(); \
static type (*get##name)() = init##name; \
static type pointer##name; \
\
static type name##Function() \
{ \
return pointer##name; \
}\
\
static type init##name() \
{ \
void** pointer = static_cast<void**>(dlsym(framework##Library(), #name)); \
ASSERT_WITH_MESSAGE(pointer, "%s", dlerror()); \
pointer##name = static_cast<type>(*pointer); \
get##name = name##Function; \
return pointer##name; \
}
#define SOFT_LINK_POINTER_OPTIONAL(framework, name, type) \
static type init##name(); \
static type (*get##name)() = init##name; \
static type pointer##name; \
\
static type name##Function() \
{ \
return pointer##name; \
}\
\
static type init##name() \
{ \
void** pointer = static_cast<void**>(dlsym(framework##Library(), #name)); \
if (pointer) \
pointer##name = static_cast<type>(*pointer); \
get##name = name##Function; \
return pointer##name; \
}
#define SOFT_LINK_CONSTANT(framework, name, type) \
static type init##name(); \
static type (*get##name)() = init##name; \
static type constant##name; \
\
static type name##Function() \
{ \
return constant##name; \
}\
\
static type init##name() \
{ \
void* constant = dlsym(framework##Library(), #name); \
ASSERT_WITH_MESSAGE(constant, "%s", dlerror()); \
constant##name = *static_cast<type*>(constant); \
get##name = name##Function; \
return constant##name; \
}