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Revert SGDT hooking support

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It's useless
This commit is contained in:
momo5502
2025-08-24 13:49:46 +02:00
parent 4c81c6355d
commit 037f078302
4 changed files with 1 additions and 29 deletions
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2
deps/unicorn vendored

Submodule deps/unicorn updated: 2b224aebf8...6d9cc93779

13
src/analyzer/main.cpp
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@@ -473,19 +473,6 @@ namespace
const auto concise_logging = !options.verbose_logging;
win_emu->emu().hook_instruction(x86_hookable_instructions::sgdt, [&](const uint64_t) {
const auto rip = win_emu->emu().read_instruction_pointer();
const auto mod = get_module_if_interesting(win_emu->mod_manager, options.modules, rip);
if (mod.has_value())
{
win_emu->log.print(color::blue, "Executing SGDT instruction at 0x%" PRIx64 " (%s)\n", rip,
(*mod) ? (*mod)->name.c_str() : "<N/A>");
}
return instruction_hook_continuation::run_instruction;
});
win_emu->emu().hook_instruction(x86_hookable_instructions::cpuid, [&] {
const auto rip = win_emu->emu().read_instruction_pointer();
const auto mod = get_module_if_interesting(win_emu->mod_manager, options.modules, rip);

14
src/backends/unicorn-emulator/unicorn_x86_64_emulator.cpp
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@@ -33,8 +33,6 @@ namespace unicorn
return UC_X86_INS_RDTSC;
case x86_hookable_instructions::rdtscp:
return UC_X86_INS_RDTSCP;
case x86_hookable_instructions::sgdt:
return UC_X86_INS_SGDT;
default:
throw std::runtime_error("Bad instruction for mapping");
}
@@ -401,18 +399,6 @@ namespace unicorn
container->add(std::move(wrapper), std::move(hook));
}
else if (inst_type == x86_hookable_instructions::sgdt)
{
function_wrapper<int, uc_engine*, uint64_t> wrapper([c = std::move(callback)](uc_engine*, const uint64_t data) {
return (c(data) == instruction_hook_continuation::skip_instruction) ? 1 : 0;
});
const auto uc_instruction = map_hookable_instruction(inst_type);
uce(uc_hook_add(*this, hook.make_reference(), UC_HOOK_INSN, wrapper.get_function(), wrapper.get_user_data(), 0,
std::numeric_limits<pointer_type>::max(), uc_instruction));
container->add(std::move(wrapper), std::move(hook));
}
else
{
function_wrapper<int, uc_engine*> wrapper([c = std::move(callback)](uc_engine*) {

1
src/emulator/arch_emulator.hpp
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@@ -50,7 +50,6 @@ enum class x86_hookable_instructions
cpuid,
rdtsc,
rdtscp,
sgdt,
};
// --[x86_64]-------------------------------------------------------------------------