diff options
Diffstat (limited to 'libs/usvfs/src/thooklib/udis86wrapper.cpp')
| -rw-r--r-- | libs/usvfs/src/thooklib/udis86wrapper.cpp | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/libs/usvfs/src/thooklib/udis86wrapper.cpp b/libs/usvfs/src/thooklib/udis86wrapper.cpp deleted file mode 100644 index 1ac7332..0000000 --- a/libs/usvfs/src/thooklib/udis86wrapper.cpp +++ /dev/null @@ -1,102 +0,0 @@ -/* -Userspace Virtual Filesystem - -Copyright (C) 2015 Sebastian Herbord. All rights reserved. - -This file is part of usvfs. - -usvfs is free software: you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation, either version 3 of the License, or -(at your option) any later version. - -usvfs is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with usvfs. If not, see <http://www.gnu.org/licenses/>. -*/ -#include "udis86wrapper.h" -#include "pch.h" -#include <boost/predef.h> -#include <shmlogger.h> -#include <stdexcept> - -namespace HookLib -{ - -UDis86Wrapper::UDis86Wrapper() -{ - ud_init(&m_Obj); - ud_set_syntax(&m_Obj, UD_SYN_INTEL); -#if BOOST_ARCH_X86_64 - ud_set_mode(&m_Obj, 64); -#else - ud_set_mode(&m_Obj, 32); -#endif -} - -void UDis86Wrapper::setInputBuffer(const uint8_t* buffer, size_t size) -{ - m_Buffer = buffer; - ud_set_input_buffer(&m_Obj, buffer, size); - ud_set_pc(&m_Obj, reinterpret_cast<uint64_t>(m_Buffer)); -} - -ud_t& UDis86Wrapper::obj() -{ - return m_Obj; -} - -bool UDis86Wrapper::isRelativeJump() -{ - ud_mnemonic_code code = ud_insn_mnemonic(&m_Obj); - // all conditional jumps and loops are relative, as are unconditional jumps with an - // offset operand - return (code == UD_Ijo) || (code == UD_Ijno) || (code == UD_Ijb) || - (code == UD_Ijae) || (code == UD_Ijz) || (code == UD_Ijnz) || - (code == UD_Ijbe) || (code == UD_Ija) || (code == UD_Ijs) || - (code == UD_Ijns) || (code == UD_Ijp) || (code == UD_Ijnp) || - (code == UD_Ijl) || (code == UD_Ijge) || (code == UD_Ijle) || - (code == UD_Ijg) || (code == UD_Ijcxz) || (code == UD_Ijecxz) || - (code == UD_Ijrcxz) || (code == UD_Iloop) || (code == UD_Iloope) || - (code == UD_Iloopne) || - ((code == UD_Icall) && (ud_insn_opr(&m_Obj, 0)->type == UD_OP_JIMM)) || - ((code == UD_Ijmp) && (ud_insn_opr(&m_Obj, 0)->type == UD_OP_JIMM)); -} - -intptr_t UDis86Wrapper::jumpOffset() -{ - const ud_operand_t* op = ud_insn_opr(&m_Obj, 0); - switch (op->size) { - case 8: - return static_cast<intptr_t>(op->lval.sbyte); - case 16: - return static_cast<intptr_t>(op->lval.sword); - case 32: - return static_cast<intptr_t>(op->lval.sdword); - case 64: - return static_cast<intptr_t>(op->lval.sqword); - default: - throw std::runtime_error("unsupported jump size"); - } -} - -uint64_t UDis86Wrapper::jumpTarget() -{ - // TODO: assert we're actually on a jump - - uint64_t res = ud_insn_off(&m_Obj) + ud_insn_len(&m_Obj); - - res += jumpOffset(); - - if (ud_insn_opr(&m_Obj, 0)->base == UD_R_RIP) { - res = *reinterpret_cast<uintptr_t*>(res); - } - - return res; -} - -} // namespace HookLib |
