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Make REM Usable as static a library

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Xphalnos
2025-06-19 19:16:09 +02:00
parent fb9d980777
commit cf9cff6039
3 changed files with 104 additions and 93 deletions
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src/export.cpp
-93
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@@ -1,93 +0,0 @@
#include "emulator/aarch64/aarch64_context_offsets.h"
#include "emulator/guest_process.h"
#include "emulator/ssa_emit_context.h"
#if defined (__linux__) || defined (__APPLE__)
#define EXPORT __attribute__((visibility("default")))
#elif (defined _WIN32)
#define EXPORT __declspec(dllexport)
#endif
struct external_context
{
guest_process process;
jit_context memory;
};
static void* base_plus_va(void* context, uint64_t virtual_address)
{
return (char*)context + virtual_address;
}
static void base_plus_va_jit(void* memory, ssa_emit_context* ir, ir_operand destination, ir_operand source)
{
ir_operation_block* ctx = ir->ir;
ir_operation_block::emitds(ctx, ir_add, destination, source, ir->memory_base);
}
extern "C"
{
EXPORT void* create_rem_context(void* memory, aarch64_context_offsets* context_offsets, void* svc, void* counter, void* undefined_instruction)
{
external_context* result = new external_context;
result->process.log_native = nullptr;
jit_context::create(&result->memory, 5ULL * 1024 * 1024 * 1024, get_abi());
guest_memory guest_memory_context = {memory, base_plus_va, base_plus_va_jit};
guest_process::create_guest_process(&result->process, guest_memory_context, &result->memory, context_offsets, sizeof(aarch64_context_offsets), cpu_type::arm, cpu_size::_64_bit, memory_order::little_endian);
result->process.undefined_instruction = undefined_instruction;
result->process.svc_function = svc;
result->process.counter_function = counter;
return result;
}
EXPORT void set_log_native(external_context* context, void* log_native)
{
context->process.log_native = log_native;
}
EXPORT void destroy_rem_context(external_context* context)
{
jit_context::destroy(&context->memory);
delete context;
}
EXPORT uint64_t interperate_until_long_jump(external_context* context, uint64_t virtual_address, void* guest_context, bool* is_running)
{
return guest_process::interperate_function(&context->process, virtual_address, guest_context, is_running);
}
EXPORT uint64_t jit_until_long_jump(external_context* context, uint64_t virtual_address, void* guest_context, bool* is_running, void* log_native)
{
context->process.log_native = log_native;
while (*is_running)
{
virtual_address = guest_process::jit_function(&context->process, virtual_address, guest_context);
}
return virtual_address;
}
EXPORT void invalidate_jit_region(external_context* context, uint64_t address, uint64_t size)
{
context->process.guest_functions.main_translate_lock.lock();
for (uint64_t i = 0; i < size; i += 4)
{
uint64_t working_address = address + i;
fast_function_table::insert_function(&context->process.guest_functions.native_function_table, working_address, -1);
context->process.guest_functions.functions.erase(working_address);
}
context->process.guest_functions.main_translate_lock.unlock();
}
}
src/rem.cpp
+77
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@@ -0,0 +1,77 @@
#include "rem.h"
void* base_plus_va(void* context, uint64_t virtual_address)
{
return (char*)context + virtual_address;
}
void base_plus_va_jit(void* memory, ssa_emit_context* ir, ir_operand destination, ir_operand source)
{
ir_operation_block* ctx = ir->ir;
ir_operation_block::emitds(ctx, ir_add, destination, source, ir->memory_base);
}
void* create_rem_context(void* memory, aarch64_context_offsets* context_offsets, void* svc, void* counter, void* undefined_instruction)
{
external_context* result = new external_context;
result->process.log_native = nullptr;
jit_context::create(&result->memory, 5ULL * 1024 * 1024 * 1024, get_abi());
guest_memory guest_memory_context = {memory, base_plus_va, base_plus_va_jit};
guest_process::create_guest_process(&result->process, guest_memory_context, &result->memory, context_offsets, sizeof(aarch64_context_offsets), cpu_type::arm, cpu_size::_64_bit, memory_order::little_endian);
result->process.undefined_instruction = undefined_instruction;
result->process.svc_function = svc;
result->process.counter_function = counter;
return result;
}
void set_log_native(external_context* context, void* log_native)
{
context->process.log_native = log_native;
}
void destroy_rem_context(external_context* context)
{
jit_context::destroy(&context->memory);
delete context;
}
uint64_t interperate_until_long_jump(external_context* context, uint64_t virtual_address, void* guest_context, bool* is_running)
{
return guest_process::interperate_function(&context->process, virtual_address, guest_context, is_running);
}
uint64_t jit_until_long_jump(external_context* context, uint64_t virtual_address, void* guest_context, bool* is_running, void* log_native)
{
context->process.log_native = log_native;
while (*is_running)
{
virtual_address = guest_process::jit_function(&context->process, virtual_address, guest_context);
}
return virtual_address;
}
void invalidate_jit_region(external_context* context, uint64_t address, uint64_t size)
{
context->process.guest_functions.main_translate_lock.lock();
for (uint64_t i = 0; i < size; i += 4)
{
uint64_t working_address = address + i;
fast_function_table::insert_function(&context->process.guest_functions.native_function_table, working_address, -1);
context->process.guest_functions.functions.erase(working_address);
}
context->process.guest_functions.main_translate_lock.unlock();
}
src/rem.h
+27
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@@ -0,0 +1,27 @@
#include "emulator/aarch64/aarch64_context_offsets.h"
#include "emulator/guest_process.h"
#include "emulator/ssa_emit_context.h"
#pragma once
struct external_context
{
guest_process process;
jit_context memory;
};
extern void* base_plus_va(void* context, uint64_t virtual_address);
extern void base_plus_va_jit(void* memory, ssa_emit_context* ir, ir_operand destination, ir_operand source);
extern void* create_rem_context(void* memory, aarch64_context_offsets* context_offsets, void* svc, void* counter, void* undefined_instruction);
extern void set_log_native(external_context* context, void* log_native);
extern void destroy_rem_context(external_context* context);
extern uint64_t interperate_until_long_jump(external_context* context, uint64_t virtual_address, void* guest_context, bool* is_running);
extern uint64_t jit_until_long_jump(external_context* context, uint64_t virtual_address, void* guest_context, bool* is_running, void* log_native);
extern void invalidate_jit_region(external_context* context, uint64_t address, uint64_t size);