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ABIMacOSX_i386.cpp
(14.53 KB)
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ABIMacOSX_i386.h
(3.44 KB)
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ABISysV_i386.cpp
(25.16 KB)
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ABISysV_i386.h
(3.6 KB)
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ABISysV_x86_64.cpp
(34.55 KB)
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ABISysV_x86_64.h
(3.51 KB)
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ABIWindows_x86_64.cpp
(28.09 KB)
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ABIWindows_x86_64.h
(3.19 KB)
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ABIX86.cpp
(1.63 KB)
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ABIX86.h
(727 B)
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ABIX86_64.h
(816 B)
Editing: ABISysV_x86_64.h
//===-- ABISysV_x86_64.h ----------------------------------------*- C++ -*-===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// #ifndef LLDB_SOURCE_PLUGINS_ABI_X86_ABISYSV_X86_64_H #define LLDB_SOURCE_PLUGINS_ABI_X86_ABISYSV_X86_64_H #include "Plugins/ABI/X86/ABIX86_64.h" class ABISysV_x86_64 : public ABIX86_64 { public: ~ABISysV_x86_64() override = default; size_t GetRedZoneSize() const override; bool PrepareTrivialCall(lldb_private::Thread &thread, lldb::addr_t sp, lldb::addr_t functionAddress, lldb::addr_t returnAddress, llvm::ArrayRef<lldb::addr_t> args) const override; bool GetArgumentValues(lldb_private::Thread &thread, lldb_private::ValueList &values) const override; lldb_private::Status SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value) override; lldb::ValueObjectSP GetReturnValueObjectImpl(lldb_private::Thread &thread, lldb_private::CompilerType &type) const override; bool CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override; bool CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override; bool RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override; // The SysV x86_64 ABI requires that stack frames be 16 byte aligned. // When there is a trap handler on the stack, e.g. _sigtramp in userland // code, we've seen that the stack pointer is often not aligned properly // before the handler is invoked. This means that lldb will stop the unwind // early -- before the function which caused the trap. // // To work around this, we relax that alignment to be just word-size // (8-bytes). // Allowing the trap handlers for user space would be easy (_sigtramp) but // in other environments there can be a large number of different functions // involved in async traps. bool CallFrameAddressIsValid(lldb::addr_t cfa) override { // Make sure the stack call frame addresses are 8 byte aligned if (cfa & (8ull - 1ull)) return false; // Not 8 byte aligned if (cfa == 0) return false; // Zero is not a valid stack address return true; } bool CodeAddressIsValid(lldb::addr_t pc) override { // We have a 64 bit address space, so anything is valid as opcodes // aren't fixed width... return true; } bool GetPointerReturnRegister(const char *&name) override; // Static Functions static void Initialize(); static void Terminate(); static lldb::ABISP CreateInstance(lldb::ProcessSP process_sp, const lldb_private::ArchSpec &arch); static lldb_private::ConstString GetPluginNameStatic(); // PluginInterface protocol lldb_private::ConstString GetPluginName() override; uint32_t GetPluginVersion() override; protected: void CreateRegisterMapIfNeeded(); lldb::ValueObjectSP GetReturnValueObjectSimple(lldb_private::Thread &thread, lldb_private::CompilerType &ast_type) const; bool RegisterIsCalleeSaved(const lldb_private::RegisterInfo *reg_info); uint32_t GetGenericNum(llvm::StringRef reg) override; private: using ABIX86_64::ABIX86_64; // Call CreateInstance instead. }; #endif // LLDB_SOURCE_PLUGINS_ABI_X86_ABISYSV_X86_64_H
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