mirror of
https://github.com/bluekitchen/btstack.git
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227 lines
12 KiB
C++
227 lines
12 KiB
C++
#ifndef SUBSTRATE_H_
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#define SUBSTRATE_H_
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#ifdef __APPLE__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <mach-o/nlist.h>
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#ifdef __cplusplus
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}
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#endif
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#include <objc/runtime.h>
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#include <objc/message.h>
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#endif
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#include <dlfcn.h>
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#define _finline \
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inline __attribute__((always_inline))
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#define _disused \
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__attribute__((unused))
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#ifdef __cplusplus
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#define _default(value) = value
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#else
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#define _default(value)
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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void MSHookFunction(void *symbol, void *replace, void **result);
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#ifdef __APPLE__
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IMP MSHookMessage(Class _class, SEL sel, IMP imp, const char *prefix _default(NULL));
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void MSHookMessageEx(Class _class, SEL sel, IMP imp, IMP *result);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#ifdef __cplusplus
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#ifdef __APPLE__
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namespace etl {
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template <unsigned Case_>
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struct Case {
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static char value[Case_ + 1];
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};
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typedef Case<true> Yes;
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typedef Case<false> No;
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namespace be {
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template <typename Checked_>
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static Yes CheckClass_(void (Checked_::*)());
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template <typename Checked_>
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static No CheckClass_(...);
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}
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template <typename Type_>
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struct IsClass {
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void gcc32();
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static const bool value = (sizeof(be::CheckClass_<Type_>(0).value) == sizeof(Yes::value));
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};
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}
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template <typename Type_>
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static inline Type_ *MSHookMessage(Class _class, SEL sel, Type_ *imp, const char *prefix = NULL) {
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return reinterpret_cast<Type_ *>(MSHookMessage(_class, sel, reinterpret_cast<IMP>(imp), prefix));
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}
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template <typename Type_>
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static inline void MSHookMessage(Class _class, SEL sel, Type_ *imp, Type_ **result) {
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return MSHookMessageEx(_class, sel, reinterpret_cast<IMP>(imp), reinterpret_cast<IMP *>(result));
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}
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template <typename Type_>
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static inline Type_ &MSHookIvar(id self, const char *name) {
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Ivar ivar(class_getInstanceVariable(object_getClass(self), name));
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void *pointer(ivar == NULL ? NULL : reinterpret_cast<char *>(self) + ivar_getOffset(ivar));
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return *reinterpret_cast<Type_ *>(pointer);
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}
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#define MSHookMessage0(_class, arg0) \
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MSHookMessage($ ## _class, @selector(arg0), MSHake(_class ## $ ## arg0))
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#define MSHookMessage1(_class, arg0) \
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MSHookMessage($ ## _class, @selector(arg0:), MSHake(_class ## $ ## arg0 ## $))
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#define MSHookMessage2(_class, arg0, arg1) \
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MSHookMessage($ ## _class, @selector(arg0:arg1:), MSHake(_class ## $ ## arg0 ## $ ## arg1 ## $))
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#define MSHookMessage3(_class, arg0, arg1, arg2) \
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MSHookMessage($ ## _class, @selector(arg0:arg1:arg2:), MSHake(_class ## $ ## arg0 ## $ ## arg1 ## $ ## arg2 ## $))
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#define MSHookMessage4(_class, arg0, arg1, arg2, arg3) \
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MSHookMessage($ ## _class, @selector(arg0:arg1:arg2:arg3:), MSHake(_class ## $ ## arg0 ## $ ## arg1 ## $ ## arg2 ## $ ## arg3 ## $))
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#define MSHookMessage5(_class, arg0, arg1, arg2, arg3, arg4) \
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MSHookMessage($ ## _class, @selector(arg0:arg1:arg2:arg3:arg4:), MSHake(_class ## $ ## arg0 ## $ ## arg1 ## $ ## arg2 ## $ ## arg3 ## $ ## arg4 ## $))
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#define MSHookMessage6(_class, arg0, arg1, arg2, arg3, arg4, arg5) \
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MSHookMessage($ ## _class, @selector(arg0:arg1:arg2:arg3:arg4:arg5:), MSHake(_class ## $ ## arg0 ## $ ## arg1 ## $ ## arg2 ## $ ## arg3 ## $ ## arg4 ## $ ## arg5 ## $))
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#define MSRegister_(name, dollar, colon) \
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static class C_$ ## name ## $ ## dollar { public: _finline C_$ ## name ## $ ##dollar() { \
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MSHookMessage($ ## name, @selector(colon), MSHake(name ## $ ## dollar)); \
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} } V_$ ## dollar; \
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#define MSIgnore_(name, dollar, colon)
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#define MSMessage_(extra, type, _class, name, dollar, colon, call, args...) \
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static type _$ ## name ## $ ## dollar(Class _cls, type (*_old)(_class, SEL, ## args), type (*_spr)(struct objc_super *, SEL, ## args), _class self, SEL _cmd, ## args); \
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MSFunction(type, name ## $ ## dollar, _class self, SEL _cmd, ## args) { \
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Class const _cls($ ## name); \
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type (* const _old)(_class, SEL, ## args) = _ ## name ## $ ## dollar; \
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typedef type (*msgSendSuper_t)(struct objc_super *, SEL, ## args); \
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msgSendSuper_t const _spr(::etl::IsClass<type>::value ? reinterpret_cast<msgSendSuper_t>(&objc_msgSendSuper_stret) : reinterpret_cast<msgSendSuper_t>(&objc_msgSendSuper)); \
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return _$ ## name ## $ ## dollar call; \
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} \
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extra(name, dollar, colon) \
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static _finline type _$ ## name ## $ ## dollar(Class _cls, type (*_old)(_class, SEL, ## args), type (*_spr)(struct objc_super *, SEL, ## args), _class self, SEL _cmd, ## args)
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/* for((x=1;x!=7;++x)){ echo -n "#define MSMessage${x}_(extra, type, _class, name";for((y=0;y!=x;++y));do echo -n ", sel$y";done;for((y=0;y!=x;++y));do echo -n ", type$y, arg$y";done;echo ") \\";echo -n " MSMessage_(extra, type, _class, name,";for((y=0;y!=x;++y));do if [[ $y -ne 0 ]];then echo -n " ##";fi;echo -n " sel$y ## $";done;echo -n ", ";for((y=0;y!=x;++y));do echo -n "sel$y:";done;echo -n ", (_cls, _old, _spr, self, _cmd";for((y=0;y!=x;++y));do echo -n ", arg$y";done;echo -n ")";for((y=0;y!=x;++y));do echo -n ", type$y arg$y";done;echo ")";} */
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#define MSMessage0_(extra, type, _class, name, sel0) \
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MSMessage_(extra, type, _class, name, sel0, sel0, (_cls, _old, _spr, self, _cmd))
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#define MSMessage1_(extra, type, _class, name, sel0, type0, arg0) \
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MSMessage_(extra, type, _class, name, sel0 ## $, sel0:, (_cls, _old, _spr, self, _cmd, arg0), type0 arg0)
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#define MSMessage2_(extra, type, _class, name, sel0, sel1, type0, arg0, type1, arg1) \
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MSMessage_(extra, type, _class, name, sel0 ## $ ## sel1 ## $, sel0:sel1:, (_cls, _old, _spr, self, _cmd, arg0, arg1), type0 arg0, type1 arg1)
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#define MSMessage3_(extra, type, _class, name, sel0, sel1, sel2, type0, arg0, type1, arg1, type2, arg2) \
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MSMessage_(extra, type, _class, name, sel0 ## $ ## sel1 ## $ ## sel2 ## $, sel0:sel1:sel2:, (_cls, _old, _spr, self, _cmd, arg0, arg1, arg2), type0 arg0, type1 arg1, type2 arg2)
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#define MSMessage4_(extra, type, _class, name, sel0, sel1, sel2, sel3, type0, arg0, type1, arg1, type2, arg2, type3, arg3) \
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MSMessage_(extra, type, _class, name, sel0 ## $ ## sel1 ## $ ## sel2 ## $ ## sel3 ## $, sel0:sel1:sel2:sel3:, (_cls, _old, _spr, self, _cmd, arg0, arg1, arg2, arg3), type0 arg0, type1 arg1, type2 arg2, type3 arg3)
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#define MSMessage5_(extra, type, _class, name, sel0, sel1, sel2, sel3, sel4, type0, arg0, type1, arg1, type2, arg2, type3, arg3, type4, arg4) \
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MSMessage_(extra, type, _class, name, sel0 ## $ ## sel1 ## $ ## sel2 ## $ ## sel3 ## $ ## sel4 ## $, sel0:sel1:sel2:sel3:sel4:, (_cls, _old, _spr, self, _cmd, arg0, arg1, arg2, arg3, arg4), type0 arg0, type1 arg1, type2 arg2, type3 arg3, type4 arg4)
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#define MSMessage6_(extra, type, _class, name, sel0, sel1, sel2, sel3, sel4, sel5, type0, arg0, type1, arg1, type2, arg2, type3, arg3, type4, arg4, type5, arg5) \
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MSMessage_(extra, type, _class, name, sel0 ## $ ## sel1 ## $ ## sel2 ## $ ## sel3 ## $ ## sel4 ## $ ## sel5 ## $, sel0:sel1:sel2:sel3:sel4:sel5:, (_cls, _old, _spr, self, _cmd, arg0, arg1, arg2, arg3, arg4, arg5), type0 arg0, type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)
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#define MSInstanceMessage0(type, _class, args...) MSMessage0_(MSIgnore_, type, _class *, _class, ## args)
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#define MSInstanceMessage1(type, _class, args...) MSMessage1_(MSIgnore_, type, _class *, _class, ## args)
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#define MSInstanceMessage2(type, _class, args...) MSMessage2_(MSIgnore_, type, _class *, _class, ## args)
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#define MSInstanceMessage3(type, _class, args...) MSMessage3_(MSIgnore_, type, _class *, _class, ## args)
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#define MSInstanceMessage4(type, _class, args...) MSMessage4_(MSIgnore_, type, _class *, _class, ## args)
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#define MSInstanceMessage5(type, _class, args...) MSMessage5_(MSIgnore_, type, _class *, _class, ## args)
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#define MSInstanceMessage6(type, _class, args...) MSMessage6_(MSIgnore_, type, _class *, _class, ## args)
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#define MSClassMessage0(type, _class, args...) MSMessage0_(MSIgnore_, type, Class, $ ## _class, ## args)
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#define MSClassMessage1(type, _class, args...) MSMessage1_(MSIgnore_, type, Class, $ ## _class, ## args)
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#define MSClassMessage2(type, _class, args...) MSMessage2_(MSIgnore_, type, Class, $ ## _class, ## args)
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#define MSClassMessage3(type, _class, args...) MSMessage3_(MSIgnore_, type, Class, $ ## _class, ## args)
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#define MSClassMessage4(type, _class, args...) MSMessage4_(MSIgnore_, type, Class, $ ## _class, ## args)
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#define MSClassMessage5(type, _class, args...) MSMessage5_(MSIgnore_, type, Class, $ ## _class, ## args)
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#define MSClassMessage6(type, _class, args...) MSMessage6_(MSIgnore_, type, Class, $ ## _class, ## args)
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#define MSInstanceMessageHook0(type, _class, args...) MSMessage0_(MSRegister_, type, _class *, _class, ## args)
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#define MSInstanceMessageHook1(type, _class, args...) MSMessage1_(MSRegister_, type, _class *, _class, ## args)
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#define MSInstanceMessageHook2(type, _class, args...) MSMessage2_(MSRegister_, type, _class *, _class, ## args)
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#define MSInstanceMessageHook3(type, _class, args...) MSMessage3_(MSRegister_, type, _class *, _class, ## args)
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#define MSInstanceMessageHook4(type, _class, args...) MSMessage4_(MSRegister_, type, _class *, _class, ## args)
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#define MSInstanceMessageHook5(type, _class, args...) MSMessage5_(MSRegister_, type, _class *, _class, ## args)
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#define MSInstanceMessageHook6(type, _class, args...) MSMessage6_(MSRegister_, type, _class *, _class, ## args)
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#define MSClassMessageHook0(type, _class, args...) MSMessage0_(MSRegister_, type, Class, $ ## _class, ## args)
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#define MSClassMessageHook1(type, _class, args...) MSMessage1_(MSRegister_, type, Class, $ ## _class, ## args)
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#define MSClassMessageHook2(type, _class, args...) MSMessage2_(MSRegister_, type, Class, $ ## _class, ## args)
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#define MSClassMessageHook3(type, _class, args...) MSMessage3_(MSRegister_, type, Class, $ ## _class, ## args)
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#define MSClassMessageHook4(type, _class, args...) MSMessage4_(MSRegister_, type, Class, $ ## _class, ## args)
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#define MSClassMessageHook5(type, _class, args...) MSMessage5_(MSRegister_, type, Class, $ ## _class, ## args)
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#define MSClassMessageHook6(type, _class, args...) MSMessage6_(MSRegister_, type, Class, $ ## _class, ## args)
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#define MSOldCall(args...) \
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_old(self, _cmd, ## args)
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#define MSSuperCall(args...) \
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_spr(& (struct objc_super) {self, class_getSuperclass(_cls)}, _cmd, ## args)
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#define MSIvarHook(type, name) \
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type &name(MSHookIvar<type>(self, #name))
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#define MSClassHook(name) \
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static Class $ ## name = objc_getClass(#name);
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#define MSMetaClassHook(name) \
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static Class $$ ## name = object_getClass($ ## name);
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#endif/*__APPLE__*/
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template <typename Type_>
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static inline void MSHookFunction(Type_ *symbol, Type_ *replace, Type_ **result) {
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return MSHookFunction(
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reinterpret_cast<void *>(symbol),
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reinterpret_cast<void *>(replace),
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reinterpret_cast<void **>(result)
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);
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}
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template <typename Type_>
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static inline void MSHookFunction(Type_ *symbol, Type_ *replace) {
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return MSHookFunction(symbol, replace, reinterpret_cast<Type_ **>(NULL));
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}
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template <typename Type_>
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static inline void MSHookSymbol(Type_ *&value, const char *name, void *handle = RTLD_DEFAULT) {
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value = reinterpret_cast<Type_ *>(dlsym(handle, name));
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}
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#endif
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#define MSFunction(type, name, args...) \
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_disused static type (*_ ## name)(args); \
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static type $ ## name(args)
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#define MSHook MSFunction
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#define MSHake(name) \
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&$ ## name, &_ ## name
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#define Foundation_f "/System/Library/Frameworks/Foundation.framework/Foundation"
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#define UIKit_f "/System/Library/Frameworks/UIKit.framework/UIKit"
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#define JavaScriptCore_f "/System/Library/PrivateFrameworks/JavaScriptCore.framework/JavaScriptCore"
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#define IOKit_f "/System/Library/Frameworks/IOKit.framework/IOKit"
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#endif//SUBSTRATE_H_
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