diff options
| author | vaxerski <43317083+vaxerski@users.noreply.github.com> | 2023-02-27 19:47:42 +0000 |
|---|---|---|
| committer | vaxerski <43317083+vaxerski@users.noreply.github.com> | 2023-02-27 19:47:42 +0000 |
| commit | 18229043fa85bdf96a9d829c1e61d0f524a1966a (patch) | |
| tree | f243fbd30fa122a42817dcc6a152f320d8f29728 /src/plugins/HookSystem.cpp | |
| parent | 03d7651916304e35a7f47027e7f1b58f618ed05d (diff) | |
Remove useless rax preserve across callq
Diffstat (limited to 'src/plugins/HookSystem.cpp')
| -rw-r--r-- | src/plugins/HookSystem.cpp | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/src/plugins/HookSystem.cpp b/src/plugins/HookSystem.cpp index ce53d653..afae69a4 100644 --- a/src/plugins/HookSystem.cpp +++ b/src/plugins/HookSystem.cpp @@ -82,15 +82,13 @@ bool CFunctionHook::hook() { // nop static constexpr uint8_t NOP = 0x90; /* - pushq %rax movabs $0,%rax callq *%rax - popq %rax offset for addr: 3 */ - static constexpr uint8_t CALL_WITH_RAX[] = {0x50, 0x48, 0xB8, 0xEF, 0xBE, 0xAD, 0xDE, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x10, 0x58}; - static constexpr size_t CALL_WITH_RAX_ADDRESS_OFFSET = 3; + static constexpr uint8_t CALL_WITH_RAX[] = {0x48, 0xB8, 0xEF, 0xBE, 0xAD, 0xDE, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x10}; + static constexpr size_t CALL_WITH_RAX_ADDRESS_OFFSET = 2; // get minimum size to overwrite const auto HOOKSIZE = probeMinimumJumpSize(m_pSource, sizeof(ABSOLUTE_JMP_ADDRESS) + sizeof(PUSH_RAX) + sizeof(POP_RAX)); |