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Unify setting segment base

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momo5502
2025-03-29 08:04:56 +01:00
parent dec66f051d
commit af6492be6d
7 changed files with 102 additions and 30 deletions
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33
src/unicorn-emulator/unicorn_x64_emulator.cpp
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@@ -302,6 +302,39 @@ namespace unicorn
uce(uc_emu_stop(*this));
}
void set_segment_base(const x64_register base, const pointer_type value) override
{
constexpr auto IA32_FS_BASE_MSR = 0xC0000100;
constexpr auto IA32_GS_BASE_MSR = 0xC0000101;
struct msr_value
{
uint32_t id;
uint64_t value;
};
msr_value msr_val{
.id = 0,
.value = value,
};
switch (base)
{
case x64_register::fs:
case x64_register::fs_base:
msr_val.id = IA32_FS_BASE_MSR;
break;
case x64_register::gs:
case x64_register::gs_base:
msr_val.id = IA32_GS_BASE_MSR;
break;
default:
return;
}
this->write_register(x64_register::msr, &msr_val, sizeof(msr_val));
}
size_t write_raw_register(const int reg, const void* value, const size_t size) override
{
auto result_size = size;