1 //===-- ABIMacOSX_arm.h ----------------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef liblldb_ABIMacOSX_arm_h_ 11 #define liblldb_ABIMacOSX_arm_h_ 12 13 // C Includes 14 // C++ Includes 15 // Other libraries and framework includes 16 // Project includes 17 #include "lldb/lldb-private.h" 18 #include "lldb/Target/ABI.h" 19 20 class ABIMacOSX_arm : public lldb_private::ABI 21 { 22 public: 23 ~ABIMacOSX_arm() { } 24 25 virtual size_t 26 GetRedZoneSize () const; 27 28 virtual bool 29 PrepareTrivialCall (lldb_private::Thread &thread, 30 lldb::addr_t sp, 31 lldb::addr_t func_addr, 32 lldb::addr_t returnAddress, 33 lldb::addr_t *arg1_ptr = NULL, 34 lldb::addr_t *arg2_ptr = NULL, 35 lldb::addr_t *arg3_ptr = NULL, 36 lldb::addr_t *arg4_ptr = NULL, 37 lldb::addr_t *arg5_ptr = NULL, 38 lldb::addr_t *arg6_ptr = NULL) const; 39 40 virtual bool 41 GetArgumentValues (lldb_private::Thread &thread, 42 lldb_private::ValueList &values) const; 43 44 virtual lldb_private::Error 45 SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value); 46 47 protected: 48 virtual lldb::ValueObjectSP 49 GetReturnValueObjectImpl (lldb_private::Thread &thread, 50 lldb_private::ClangASTType &ast_type) const; 51 52 public: 53 virtual bool 54 CreateFunctionEntryUnwindPlan (lldb_private::UnwindPlan &unwind_plan); 55 56 virtual bool 57 CreateDefaultUnwindPlan (lldb_private::UnwindPlan &unwind_plan); 58 59 virtual bool 60 RegisterIsVolatile (const lldb_private::RegisterInfo *reg_info); 61 62 virtual bool 63 StackUsesFrames () 64 { 65 return true; 66 } 67 68 virtual bool 69 CallFrameAddressIsValid (lldb::addr_t cfa) 70 { 71 // Make sure the stack call frame addresses are are 4 byte aligned 72 if (cfa & (4ull - 1ull)) 73 return false; // Not 4 byte aligned 74 if (cfa == 0) 75 return false; // Zero is not a valid stack address 76 return true; 77 } 78 79 virtual bool 80 CodeAddressIsValid (lldb::addr_t pc) 81 { 82 // Just make sure the address is a valid 32 bit address. Bit zero 83 // might be set due to Thumb function calls, so don't enforce 2 byte 84 // alignment 85 return pc <= UINT32_MAX; 86 } 87 88 virtual lldb::addr_t 89 FixCodeAddress (lldb::addr_t pc) 90 { 91 // ARM uses bit zero to signify a code address is thumb, so we must 92 // strip bit zero in any code addresses. 93 return pc & ~(lldb::addr_t)1; 94 } 95 96 virtual bool 97 FunctionCallsChangeCFA () 98 { 99 return false; 100 } 101 102 virtual const lldb_private::RegisterInfo * 103 GetRegisterInfoArray (uint32_t &count); 104 105 //------------------------------------------------------------------ 106 // Static Functions 107 //------------------------------------------------------------------ 108 static void 109 Initialize(); 110 111 static void 112 Terminate(); 113 114 static lldb::ABISP 115 CreateInstance (const lldb_private::ArchSpec &arch); 116 117 static lldb_private::ConstString 118 GetPluginNameStatic(); 119 120 //------------------------------------------------------------------ 121 // PluginInterface protocol 122 //------------------------------------------------------------------ 123 virtual lldb_private::ConstString 124 GetPluginName(); 125 126 virtual uint32_t 127 GetPluginVersion(); 128 129 protected: 130 private: 131 ABIMacOSX_arm() : 132 lldb_private::ABI() 133 { 134 // Call CreateInstance instead. 135 } 136 }; 137 138 #endif // liblldb_ABIMacOSX_arm_h_ 139
