wip checkin

This commit is contained in:
Eyck-Alexander Jentzsch 2024-04-30 19:21:27 +02:00
parent 9fdbc3ff38
commit ad79a28705
4 changed files with 837 additions and 1202 deletions

View File

@ -79,21 +79,36 @@ public:
}
protected:
using vm_base<ARCH>::get_reg_ptr;
using super::get_ptr_for;
using super::get_reg;
using super::get_reg_for;
using super::load_reg_from_mem;
using super::write_reg_to_mem;
using super::gen_ext;
using super::gen_read_mem;
using super::gen_write_mem;
using super::gen_wait;
using super::gen_leave;
using super::gen_operation;
using this_class = vm_impl<ARCH>;
using compile_func = continuation_e (this_class::*)(virt_addr_t&, code_word_t, jit_holder&);
continuation_e gen_single_inst_behavior(virt_addr_t&, unsigned int &, jit_holder&) override;
void gen_block_prologue(jit_holder& jh) override;
void gen_block_epilogue(jit_holder& jh) override;
inline const char *name(size_t index){return traits::reg_aliases.at(index);}
void gen_instr_prologue(jit_holder& jh);
void gen_instr_epilogue(jit_holder& jh);
inline void gen_raise(jit_holder& jh, uint16_t trap_id, uint16_t cause);
template<unsigned W, typename U, typename S = typename std::make_signed<U>::type>
inline S sext(U from) {
auto mask = (1ULL<<W) - 1;
auto sign_mask = 1ULL<<(W-1);
return (from & mask) | ((from & sign_mask) ? ~mask : 0);
}
#include <vm/asmjit/helper_func.h>
private:
/****************************************************************************
* start opcode definitions
@ -139,12 +154,14 @@ private:
}
x86::Compiler& cc = jh.cc;
cc.comment(fmt::format("\\n${instr.name}_{:#x}:",pc.val).c_str());
cc.comment(fmt::format("${instr.name}_{:#x}:",pc.val).c_str());
this->gen_sync(jh, PRE_SYNC, ${idx});
pc=pc+ ${instr.length/8};
gen_instr_prologue(jh, pc.val);
cc.comment("\\n//behavior:");
cc.mov(jh.pc, pc.val);
pc = pc+${instr.length/8};
cc.mov(jh.next_pc, pc.val);
gen_instr_prologue(jh);
cc.comment("//behavior:");
/*generate behavior*/
<%instr.behavior.eachLine{%>${it}
<%}%>
@ -214,11 +231,6 @@ private:
}
};
template <typename CODE_WORD> void debug_fn(CODE_WORD instr) {
volatile CODE_WORD x = instr;
instr = 2 * x;
}
template <typename ARCH> vm_impl<ARCH>::vm_impl() { this(new ARCH()); }
template <typename ARCH>
@ -232,8 +244,7 @@ vm_impl<ARCH>::vm_impl(ARCH &core, unsigned core_id, unsigned cluster_id)
}
template <typename ARCH>
continuation_e
vm_impl<ARCH>::gen_single_inst_behavior(virt_addr_t &pc, unsigned int &inst_cnt, jit_holder& jh) {
continuation_e vm_impl<ARCH>::gen_single_inst_behavior(virt_addr_t &pc, unsigned int &inst_cnt, jit_holder& jh) {
enum {TRAP_ID=1<<16};
code_word_t instr = 0;
phys_addr_t paddr(pc);
@ -251,10 +262,90 @@ vm_impl<ARCH>::gen_single_inst_behavior(virt_addr_t &pc, unsigned int &inst_cnt,
f = &this_class::illegal_intruction;
return (this->*f)(pc, instr, jh);
}
template <typename ARCH>
void vm_impl<ARCH>::gen_instr_prologue(jit_holder& jh) {
auto& cc = jh.cc;
cc.comment("//(*icount)++;");
cc.inc(get_ptr_for(jh, traits::ICOUNT));
cc.comment("//*trap_state=*pending_trap;");
x86::Gp current_trap_state = get_reg_for(jh, traits::TRAP_STATE);
cc.mov(current_trap_state, get_ptr_for(jh, traits::TRAP_STATE));
cc.mov(get_ptr_for(jh, traits::PENDING_TRAP), current_trap_state);
} // namespace ${coreDef.name.toLowerCase()}
}
template <typename ARCH>
void vm_impl<ARCH>::gen_instr_epilogue(jit_holder& jh) {
auto& cc = jh.cc;
cc.comment("//if(*trap_state!=0) goto trap_entry;");
x86::Gp current_trap_state = get_reg_for(jh, traits::TRAP_STATE);
cc.mov(current_trap_state, get_ptr_for(jh, traits::TRAP_STATE));
cc.cmp(current_trap_state, 0);
cc.jne(jh.trap_entry);
// TODO: Does not need to be done for every instruction, only when needed (by plugin)
cc.comment("//write back regs to mem");
write_reg_to_mem(jh, jh.pc, traits::PC);
write_reg_to_mem(jh, jh.next_pc, traits::NEXT_PC);
}
template <typename ARCH>
void vm_impl<ARCH>::gen_block_prologue(jit_holder& jh){
jh.pc = load_reg_from_mem(jh, traits::PC);
jh.next_pc = load_reg_from_mem(jh, traits::NEXT_PC);
}
template <typename ARCH>
void vm_impl<ARCH>::gen_block_epilogue(jit_holder& jh){
x86::Compiler& cc = jh.cc;
cc.comment("//return *next_pc;");
cc.ret(jh.next_pc);
cc.bind(jh.trap_entry);
cc.comment("//Prepare for enter_trap;");
// Make sure cached values are written back
cc.comment("//write back regs to mem");
write_reg_to_mem(jh, jh.pc, traits::PC);
write_reg_to_mem(jh, jh.next_pc, traits::NEXT_PC);
this->gen_sync(jh, POST_SYNC, -1);
x86::Gp current_trap_state = get_reg_for(jh, traits::TRAP_STATE);
cc.mov(current_trap_state, get_ptr_for(jh, traits::TRAP_STATE));
x86::Gp current_pc = get_reg_for(jh, traits::PC);
cc.mov(current_pc, get_ptr_for(jh, traits::PC));
x86::Gp instr = cc.newInt32("instr");
cc.mov(instr, 0); // this is not correct
cc.comment("//enter trap call;");
InvokeNode* call_enter_trap;
cc.invoke(&call_enter_trap, &enter_trap, FuncSignatureT<uint64_t, void*, uint64_t, uint64_t, uint64_t>());
call_enter_trap->setArg(0, jh.arch_if_ptr);
call_enter_trap->setArg(1, current_trap_state);
call_enter_trap->setArg(2, current_pc);
call_enter_trap->setArg(3, instr);
x86::Gp current_next_pc = get_reg_for(jh, traits::NEXT_PC);
cc.mov(current_next_pc, get_ptr_for(jh, traits::NEXT_PC));
cc.mov(jh.next_pc, current_next_pc);
cc.comment("//*last_branch = std::numeric_limits<uint32_t>::max();");
cc.mov(get_ptr_for(jh, traits::LAST_BRANCH), std::numeric_limits<uint32_t>::max());
cc.comment("//return *next_pc;");
cc.ret(jh.next_pc);
}
template <typename ARCH>
inline void vm_impl<ARCH>:: gen_raise(jit_holder& jh, uint16_t trap_id, uint16_t cause) {
auto& cc = jh.cc;
cc.comment("//gen_raise");
auto tmp1 = get_reg_for(jh, traits::TRAP_STATE);
cc.mov(tmp1, 0x80ULL << 24 | (cause << 16) | trap_id);
cc.mov(get_ptr_for(jh, traits::TRAP_STATE), tmp1);
cc.mov(jh.next_pc, std::numeric_limits<uint32_t>::max());
}
} // namespace tgc5c
template <>
std::unique_ptr<vm_if> create<arch::${coreDef.name.toLowerCase()}>(arch::${coreDef.name.toLowerCase()} *core, unsigned short port, bool dump) {
@ -265,9 +356,9 @@ std::unique_ptr<vm_if> create<arch::${coreDef.name.toLowerCase()}>(arch::${coreD
} // namespace asmjit
} // namespace iss
#include <iss/factory.h>
#include <iss/arch/riscv_hart_m_p.h>
#include <iss/arch/riscv_hart_mu_p.h>
#include <iss/factory.h>
namespace iss {
namespace {
volatile std::array<bool, 2> dummy = {

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@ -75,7 +75,7 @@ int main(int argc, char* argv[]) {
("elf,f", po::value<std::vector<std::string>>(), "ELF file(s) to load")
("mem,m", po::value<std::string>(), "the memory input file")
("plugin,p", po::value<std::vector<std::string>>(), "plugin to activate")
("backend", po::value<std::string>()->default_value("interp"), "the ISS backend to use, options are: interp, tcc")
("backend", po::value<std::string>()->default_value("interp"), "the ISS backend to use, options are: interp, llvm, tcc, asmjit")
("isa", po::value<std::string>()->default_value("tgc5c"), "core or isa name to use for simulation, use '?' to get list");
// clang-format on
auto parsed = po::command_line_parser(argc, argv).options(desc).allow_unregistered().run();

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@ -1,539 +0,0 @@
#include <asmjit/asmjit.h>
#include <iss/asmjit/jit_helper.h>
x86::Mem get_reg_ptr(jit_holder& jh, unsigned idx) {
x86::Gp tmp_ptr = jh.cc.newUIntPtr("tmp_ptr");
jh.cc.mov(tmp_ptr, jh.regs_base_ptr);
jh.cc.add(tmp_ptr, traits::reg_byte_offsets[idx]);
switch(traits::reg_bit_widths[idx]) {
case 8:
return x86::ptr_8(tmp_ptr);
case 16:
return x86::ptr_16(tmp_ptr);
case 32:
return x86::ptr_32(tmp_ptr);
case 64:
return x86::ptr_64(tmp_ptr);
default:
throw std::runtime_error("Invalid reg size in get_reg_ptr");
}
}
x86::Gp get_reg_for(jit_holder& jh, unsigned idx) {
// TODO can check for regs in jh and return them instead of creating new ones
switch(traits::reg_bit_widths[idx]) {
case 8:
return jh.cc.newInt8();
case 16:
return jh.cc.newInt16();
case 32:
return jh.cc.newInt32();
case 64:
return jh.cc.newInt64();
default:
throw std::runtime_error("Invalid reg size in get_reg_ptr");
}
}
x86::Gp get_reg_for(jit_holder& jh, unsigned size, bool is_signed) {
if(is_signed)
switch(size) {
case 8:
return jh.cc.newInt8();
case 16:
return jh.cc.newInt16();
case 32:
return jh.cc.newInt32();
case 64:
return jh.cc.newInt64();
default:
throw std::runtime_error("Invalid reg size in get_reg_ptr");
}
else
switch(size) {
case 8:
return jh.cc.newUInt8();
case 16:
return jh.cc.newUInt16();
case 32:
return jh.cc.newUInt32();
case 64:
return jh.cc.newUInt64();
default:
throw std::runtime_error("Invalid reg size in get_reg_ptr");
}
}
inline x86::Gp load_reg_from_mem(jit_holder& jh, unsigned idx) {
auto ptr = get_reg_ptr(jh, idx);
auto reg = get_reg_for(jh, idx);
jh.cc.mov(reg, ptr);
return reg;
}
inline void write_reg_to_mem(jit_holder& jh, x86::Gp reg, unsigned idx) {
auto ptr = get_reg_ptr(jh, idx);
jh.cc.mov(ptr, reg);
}
void gen_instr_prologue(jit_holder& jh, addr_t pc) {
auto& cc = jh.cc;
cc.mov(jh.pc, pc);
cc.comment("\n//(*icount)++;");
cc.inc(get_reg_ptr(jh, traits::ICOUNT));
cc.comment("\n//*pc=*next_pc;");
cc.mov(get_reg_ptr(jh, traits::PC), jh.next_pc);
cc.comment("\n//*trap_state=*pending_trap;");
x86::Gp current_trap_state = get_reg_for(jh, traits::TRAP_STATE);
cc.mov(current_trap_state, get_reg_ptr(jh, traits::TRAP_STATE));
cc.mov(get_reg_ptr(jh, traits::PENDING_TRAP), current_trap_state);
cc.comment("\n//increment *next_pc");
cc.mov(jh.next_pc, pc);
}
void gen_instr_epilogue(jit_holder& jh) {
auto& cc = jh.cc;
cc.comment("\n//if(*trap_state!=0) goto trap_entry;");
x86::Gp current_trap_state = get_reg_for(jh, traits::TRAP_STATE);
cc.mov(current_trap_state, get_reg_ptr(jh, traits::TRAP_STATE));
cc.cmp(current_trap_state, 0);
cc.jne(jh.trap_entry);
// TODO: Does not need to be done for every instruction, only when needed
cc.comment("\n//write back regs to mem");
write_reg_to_mem(jh, jh.pc, traits::PC);
write_reg_to_mem(jh, jh.next_pc, traits::NEXT_PC);
}
void gen_block_prologue(jit_holder& jh) override {
jh.pc = load_reg_from_mem(jh, traits::PC);
jh.next_pc = load_reg_from_mem(jh, traits::NEXT_PC);
}
void gen_block_epilogue(jit_holder& jh) override {
x86::Compiler& cc = jh.cc;
cc.comment("\n//return *next_pc;");
cc.ret(jh.next_pc);
cc.bind(jh.trap_entry);
cc.comment("\n//Prepare for enter_trap;");
// Make sure cached values are written back
cc.comment("\n//write back regs to mem");
write_reg_to_mem(jh, jh.pc, traits::PC);
write_reg_to_mem(jh, jh.next_pc, traits::NEXT_PC);
this->gen_sync(jh, POST_SYNC, -1);
x86::Gp current_trap_state = get_reg_for(jh, traits::TRAP_STATE);
cc.mov(current_trap_state, get_reg_ptr(jh, traits::TRAP_STATE));
x86::Gp current_pc = get_reg_for(jh, traits::PC);
cc.mov(current_pc, get_reg_ptr(jh, traits::PC));
x86::Gp instr = cc.newInt32("instr");
cc.mov(instr, 0); // this is not correct
cc.comment("\n//enter trap call;");
InvokeNode* call_enter_trap;
cc.invoke(&call_enter_trap, &enter_trap, FuncSignatureT<uint64_t, void*, uint64_t, uint64_t, uint64_t>());
call_enter_trap->setArg(0, jh.arch_if_ptr);
call_enter_trap->setArg(1, current_trap_state);
call_enter_trap->setArg(2, current_pc);
call_enter_trap->setArg(3, instr);
x86::Gp current_next_pc = get_reg_for(jh, traits::NEXT_PC);
cc.mov(current_next_pc, get_reg_ptr(jh, traits::NEXT_PC));
cc.mov(jh.next_pc, current_next_pc);
cc.comment("\n//*last_branch = std::numeric_limits<uint32_t>::max();");
cc.mov(get_reg_ptr(jh, traits::LAST_BRANCH), std::numeric_limits<uint32_t>::max());
cc.comment("\n//return *next_pc;");
cc.ret(jh.next_pc);
}
/*
inline void raise(uint16_t trap_id, uint16_t cause){
auto trap_val = 0x80ULL << 24 | (cause << 16) | trap_id;
this->core.reg.trap_state = trap_val;
this->template get_reg<uint32_t>(traits::NEXT_PC) = std::numeric_limits<uint32_t>::max();
}
*/
inline void gen_raise(jit_holder& jh, uint16_t trap_id, uint16_t cause) {
auto& cc = jh.cc;
cc.comment("//gen_raise");
auto tmp1 = get_reg_for(jh, traits::TRAP_STATE);
cc.mov(tmp1, 0x80ULL << 24 | (cause << 16) | trap_id);
cc.mov(get_reg_ptr(jh, traits::TRAP_STATE), tmp1);
auto tmp2 = get_reg_for(jh, traits::NEXT_PC);
cc.mov(tmp2, std::numeric_limits<uint32_t>::max());
cc.mov(get_reg_ptr(jh, traits::NEXT_PC), tmp2);
}
inline void gen_wait(jit_holder& jh, unsigned type) { jh.cc.comment("//gen_wait"); }
inline void gen_leave(jit_holder& jh, unsigned lvl) { jh.cc.comment("//gen_leave"); }
enum operation { add, sub, band, bor, bxor, shl, sar, shr };
template <typename T, typename = std::enable_if_t<std::is_integral<T>::value || std::is_same<T, x86::Gp>::value>>
x86::Gp gen_operation(jit_holder& jh, operation op, x86::Gp a, T b) {
x86::Compiler& cc = jh.cc;
switch(op) {
case add: {
cc.add(a, b);
break;
}
case sub: {
cc.sub(a, b);
break;
}
case band: {
cc.and_(a, b);
break;
}
case bor: {
cc.or_(a, b);
break;
}
case bxor: {
cc.xor_(a, b);
break;
}
case shl: {
cc.shl(a, b);
break;
}
case sar: {
cc.sar(a, b);
break;
}
case shr: {
cc.shr(a, b);
break;
}
default:
throw std::runtime_error(fmt::format("Current operation {} not supported in gen_operation (operation)", op));
}
return a;
}
enum three_operand_operation { imul, mul, idiv, div, srem, urem };
x86::Gp gen_operation(jit_holder& jh, three_operand_operation op, x86::Gp a, x86::Gp b) {
x86::Compiler& cc = jh.cc;
switch(op) {
case imul: {
x86::Gp dummy = cc.newInt64();
cc.imul(dummy, a.r64(), b.r64());
return a;
}
case mul: {
x86::Gp dummy = cc.newInt64();
cc.mul(dummy, a.r64(), b.r64());
return a;
}
case idiv: {
x86::Gp dummy = cc.newInt64();
cc.mov(dummy, 0);
cc.idiv(dummy, a.r64(), b.r64());
return a;
}
case div: {
x86::Gp dummy = cc.newInt64();
cc.mov(dummy, 0);
cc.div(dummy, a.r64(), b.r64());
return a;
}
case srem: {
x86::Gp rem = cc.newInt32();
cc.mov(rem, 0);
auto a_reg = cc.newInt32();
cc.mov(a_reg, a.r32());
cc.idiv(rem, a_reg, b.r32());
return rem;
}
case urem: {
x86::Gp rem = cc.newInt32();
cc.mov(rem, 0);
auto a_reg = cc.newInt32();
cc.mov(a_reg, a.r32());
cc.div(rem, a_reg, b.r32());
return rem;
}
default:
throw std::runtime_error(fmt::format("Current operation {} not supported in gen_operation (three_operand)", op));
}
return a;
}
template <typename T, typename = std::enable_if_t<std::is_integral<T>::value>>
x86::Gp gen_operation(jit_holder& jh, three_operand_operation op, x86::Gp a, T b) {
x86::Gp b_reg = jh.cc.newInt32();
/* switch(a.size()){
case 1: b_reg = jh.cc.newInt8(); break;
case 2: b_reg = jh.cc.newInt16(); break;
case 4: b_reg = jh.cc.newInt32(); break;
case 8: b_reg = jh.cc.newInt64(); break;
default: throw std::runtime_error(fmt::format("Invalid size ({}) in gen operation", a.size()));
} */
jh.cc.mov(b_reg, b);
return gen_operation(jh, op, a, b_reg);
}
enum comparison_operation { land, lor, eq, ne, lt, ltu, gt, gtu, lte, lteu, gte, gteu };
template <typename T, typename = std::enable_if_t<std::is_integral<T>::value || std::is_same<T, x86::Gp>::value>>
x86::Gp gen_operation(jit_holder& jh, comparison_operation op, x86::Gp a, T b) {
x86::Compiler& cc = jh.cc;
x86::Gp tmp = cc.newInt8();
cc.mov(tmp, 1);
Label label_then = cc.newLabel();
cc.cmp(a, b);
switch(op) {
case eq:
cc.je(label_then);
break;
case ne:
cc.jne(label_then);
break;
case lt:
cc.jl(label_then);
break;
case ltu:
cc.jb(label_then);
break;
case gt:
cc.jg(label_then);
break;
case gtu:
cc.ja(label_then);
break;
case lte:
cc.jle(label_then);
break;
case lteu:
cc.jbe(label_then);
break;
case gte:
cc.jge(label_then);
break;
case gteu:
cc.jae(label_then);
break;
case land: {
Label label_false = cc.newLabel();
cc.cmp(a, 0);
cc.je(label_false);
auto b_reg = cc.newInt8();
cc.mov(b_reg, b);
cc.cmp(b_reg, 0);
cc.je(label_false);
cc.jmp(label_then);
cc.bind(label_false);
break;
}
case lor: {
cc.cmp(a, 0);
cc.jne(label_then);
auto b_reg = cc.newInt8();
cc.mov(b_reg, b);
cc.cmp(b_reg, 0);
cc.jne(label_then);
break;
}
default:
throw std::runtime_error(fmt::format("Current operation {} not supported in gen_operation (comparison)", op));
}
cc.mov(tmp, 0);
cc.bind(label_then);
return tmp;
}
enum binary_operation { lnot, inc, dec, bnot, neg };
x86::Gp gen_operation(jit_holder& jh, binary_operation op, x86::Gp a) {
x86::Compiler& cc = jh.cc;
switch(op) {
case lnot:
throw std::runtime_error("Current operation not supported in gen_operation(lnot)");
case inc: {
cc.inc(a);
break;
}
case dec: {
cc.dec(a);
break;
}
case bnot: {
cc.not_(a);
break;
}
case neg: {
cc.neg(a);
break;
}
default:
throw std::runtime_error(fmt::format("Current operation {} not supported in gen_operation (unary)", op));
}
return a;
}
template <typename T, typename = std::enable_if_t<std::is_integral<T>::value>>
inline x86::Gp gen_ext(jit_holder& jh, T val, unsigned size, bool is_signed) {
auto val_reg = get_reg_for(jh, sizeof(val) * 8, is_signed);
jh.cc.mov(val_reg, val);
return gen_ext(jh, val_reg, size, is_signed);
}
inline x86::Gp gen_ext(jit_holder& jh, x86::Gp val, unsigned size, bool is_signed) {
auto& cc = jh.cc;
if(is_signed) {
switch(val.size()) {
case 1:
cc.cbw(val);
break;
case 2:
cc.cwde(val);
break;
case 4:
cc.cdqe(val);
break;
case 8:
break;
default:
throw std::runtime_error("Invalid register size in gen_ext");
}
}
switch(size) {
case 8:
cc.and_(val, std::numeric_limits<uint8_t>::max());
return val.r8();
case 16:
cc.and_(val, std::numeric_limits<uint16_t>::max());
return val.r16();
case 32:
cc.and_(val, std::numeric_limits<uint32_t>::max());
return val.r32();
case 64:
cc.and_(val, std::numeric_limits<uint64_t>::max());
return val.r64();
case 128:
return val.r64();
default:
throw std::runtime_error("Invalid size in gen_ext");
}
}
inline x86::Gp gen_read_mem(jit_holder& jh, mem_type_e type, x86::Gp addr, uint32_t length) {
x86::Compiler& cc = jh.cc;
auto ret_reg = cc.newInt32();
auto mem_type_reg = cc.newInt32();
cc.mov(mem_type_reg, type);
auto space_reg = cc.newInt32();
cc.mov(space_reg, static_cast<uint16_t>(iss::address_type::VIRTUAL));
auto val_ptr = cc.newUIntPtr();
cc.mov(val_ptr, read_mem_buf);
InvokeNode* invokeNode;
uint64_t mask = 0;
x86::Gp val_reg = cc.newInt64();
switch(length) {
case 1: {
cc.invoke(&invokeNode, &read_mem1, FuncSignatureT<uint32_t, uint64_t, uint32_t, uint32_t, uint64_t, uintptr_t>());
mask = std::numeric_limits<uint8_t>::max();
break;
}
case 2: {
cc.invoke(&invokeNode, &read_mem2, FuncSignatureT<uint32_t, uint64_t, uint32_t, uint32_t, uint64_t, uintptr_t>());
mask = std::numeric_limits<uint16_t>::max();
break;
}
case 4: {
cc.invoke(&invokeNode, &read_mem4, FuncSignatureT<uint32_t, uint64_t, uint32_t, uint32_t, uint64_t, uintptr_t>());
mask = std::numeric_limits<uint32_t>::max();
break;
}
case 8: {
cc.invoke(&invokeNode, &read_mem8, FuncSignatureT<uint32_t, uint64_t, uint32_t, uint32_t, uint64_t, uintptr_t>());
mask = std::numeric_limits<uint64_t>::max();
break;
}
default:
throw std::runtime_error(fmt::format("Invalid length ({}) in gen_read_mem", length));
}
invokeNode->setRet(0, ret_reg);
invokeNode->setArg(0, jh.arch_if_ptr);
invokeNode->setArg(1, space_reg);
invokeNode->setArg(2, mem_type_reg);
invokeNode->setArg(3, addr);
invokeNode->setArg(4, val_ptr);
cc.cmp(ret_reg, 0);
cc.jne(jh.trap_entry);
cc.mov(val_reg, x86::ptr_64(val_ptr));
cc.and_(val_reg, mask);
return val_reg;
}
inline x86::Gp gen_read_mem(jit_holder& jh, mem_type_e type, x86::Gp addr, x86::Gp length) {
throw std::runtime_error("Invalid gen_read_mem");
}
inline x86::Gp gen_read_mem(jit_holder& jh, mem_type_e type, uint64_t addr, x86::Gp length) {
throw std::runtime_error("Invalid gen_read_mem");
}
inline x86::Gp gen_read_mem(jit_holder& jh, mem_type_e type, uint64_t addr, uint32_t length) {
auto addr_reg = jh.cc.newInt64();
jh.cc.mov(addr_reg, addr);
return gen_read_mem(jh, type, addr_reg, length);
}
inline void gen_write_mem(jit_holder& jh, mem_type_e type, x86::Gp addr, int64_t val, uint32_t length) {
auto val_reg = get_reg_for(jh, length * 8, true);
jh.cc.mov(val_reg, val);
gen_write_mem(jh, type, addr, val_reg, length);
}
inline void gen_write_mem(jit_holder& jh, mem_type_e type, x86::Gp addr, x86::Gp val, uint32_t length) {
x86::Compiler& cc = jh.cc;
assert(val.size() == length);
auto mem_type_reg = cc.newInt32();
jh.cc.mov(mem_type_reg, type);
auto space_reg = cc.newInt32();
jh.cc.mov(space_reg, static_cast<uint16_t>(iss::address_type::VIRTUAL));
auto ret_reg = cc.newInt32();
InvokeNode* invokeNode;
switch(length) {
case 1:
cc.invoke(&invokeNode, &write_mem1, FuncSignatureT<uint32_t, uint64_t, uint32_t, uint32_t, uint64_t, uint8_t>());
break;
case 2:
cc.invoke(&invokeNode, &write_mem2, FuncSignatureT<uint32_t, uint64_t, uint32_t, uint32_t, uint64_t, uint16_t>());
break;
case 4:
cc.invoke(&invokeNode, &write_mem4, FuncSignatureT<uint32_t, uint64_t, uint32_t, uint32_t, uint64_t, uint32_t>());
break;
case 8:
cc.invoke(&invokeNode, &write_mem8, FuncSignatureT<uint32_t, uint64_t, uint32_t, uint32_t, uint64_t, uint64_t>());
break;
default:
throw std::runtime_error("Invalid register size in gen_ext");
}
invokeNode->setRet(0, ret_reg);
invokeNode->setArg(0, jh.arch_if_ptr);
invokeNode->setArg(1, space_reg);
invokeNode->setArg(2, mem_type_reg);
invokeNode->setArg(3, addr);
invokeNode->setArg(4, val);
cc.cmp(ret_reg, 0);
cc.jne(jh.trap_entry);
}
inline void gen_write_mem(jit_holder& jh, mem_type_e type, uint64_t addr, x86::Gp val, uint32_t length) {
auto addr_reg = jh.cc.newUInt64();
jh.cc.mov(addr_reg, addr);
gen_write_mem(jh, type, addr_reg, val, length);
}
inline void gen_write_mem(jit_holder& jh, mem_type_e type, uint64_t addr, int64_t val, uint32_t length) {
auto val_reg = get_reg_for(jh, length * 8, true);
jh.cc.mov(val_reg, val);
auto addr_reg = jh.cc.newUInt64();
jh.cc.mov(addr_reg, addr);
gen_write_mem(jh, type, addr_reg, val_reg, length);
}

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