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#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#include <errno.h>
#include <setjmp.h>
#include "debug.h"
#include "box64context.h"
#include "dynarec.h"
#include "emu/x64emu_private.h"
#include "tools/bridge_private.h"
#include "x64run.h"
#include "x64emu.h"
#include "box64stack.h"
#include "callback.h"
#include "emu/x64run_private.h"
#include "x64trace.h"
#include "threads.h"
#ifdef DYNAREC
#include "dynablock.h"
#include "dynablock_private.h"
#include "bridge.h"
#endif
#ifdef DYNAREC
#ifdef ARM64
void arm64_prolog(x64emu_t* emu, void* addr) EXPORTDYN;
void arm64_epilog() EXPORTDYN;
#define native_prolog arm64_prolog
#define native_epilog arm64_epilog
#elif defined(LA464)
void la464_prolog(x64emu_t* emu, void* addr) EXPORTDYN;
void la464_epilog() EXPORTDYN;
#define native_prolog la464_prolog
#define native_epilog la464_epilog
#else
#error Unsupported architecture
#endif
#endif
#ifdef DYNAREC
uintptr_t getX64Address(dynablock_t* db, uintptr_t arm_addr);
void* LinkNext(x64emu_t* emu, uintptr_t addr, void* x2, uintptr_t* x3)
{
#ifdef HAVE_TRACE
if(!addr) {
dynablock_t* db = FindDynablockFromNativeAddress(x2-4);
printf_log(LOG_NONE, "Warning, jumping to NULL address from %p (db=%p, x64addr=%p)\n", x2-4, db, db?(void*)getX64Address(db, (uintptr_t)x2-4):NULL);
}
#endif
dynablock_t* current = NULL;
void * jblock;
dynablock_t* block = DBGetBlock(emu, addr, 1, ¤t);
if(!block) {
// no block, let link table as is...
if(hasAlternate((void*)addr)) {
printf_log(LOG_DEBUG, "Jmp address has alternate: %p", (void*)addr);
addr = (uintptr_t)getAlternate((void*)addr); // set new address
R_RIP = addr; // but also new RIP!
*x3 = addr; // and the RIP in x27 register
printf_log(LOG_DEBUG, " -> %p\n", (void*)addr);
block = DBGetBlock(emu, addr, 1, ¤t);
}
if(!block) {
#ifdef HAVE_TRACE
dynablock_t* db = FindDynablockFromNativeAddress(x2-4);
dynarec_log(LOG_INFO, "Warning, jumping to a no-block address %p from %p (db=%p, x64addr=%p)\n", (void*)addr, x2-4, db, db?(void*)getX64Address(db, (uintptr_t)x2-4):NULL);
#endif
//tableupdate(native_epilog, addr, table);
return native_epilog;
}
}
if(!block->done) {
// not finished yet... leave linker
return native_epilog;
}
if(!(jblock=block->block)) {
// null block, but done: go to epilog, no linker here
return native_epilog;
}
//dynablock_t *father = block->father?block->father:block;
return jblock;
}
#endif
#ifdef __GNUC__
// Disable "clobbered" warnings
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wclobbered"
#endif
void DynaCall(x64emu_t* emu, uintptr_t addr)
{
// prepare setjump for signal handling
emu_jmpbuf_t *ejb = NULL;
int jmpbuf_reset = 0;
if(emu->type == EMUTYPE_MAIN) {
ejb = GetJmpBuf();
if(!ejb->jmpbuf_ok) {
ejb->emu = emu;
ejb->jmpbuf_ok = 1;
jmpbuf_reset = 1;
if(sigsetjmp((struct __jmp_buf_tag*)ejb->jmpbuf, 1)) {
printf_log(LOG_DEBUG, "Setjmp DynaCall, fs=0x%x\n", ejb->emu->segs[_FS]);
addr = R_RIP; // not sure if it should still be inside DynaCall!
}
}
}
#ifdef DYNAREC
if(!box64_dynarec)
#endif
EmuCall(emu, addr);
#ifdef DYNAREC
else {
uint64_t old_rsp = R_RSP;
uint64_t old_rbx = R_RBX;
uint64_t old_rdi = R_RDI;
uint64_t old_rsi = R_RSI;
uint64_t old_rbp = R_RBP;
uint64_t old_rip = R_RIP;
PushExit(emu);
R_RIP = addr;
emu->df = d_none;
dynablock_t* current = NULL;
dynablock_t* block = DBGetBlock(emu, R_RIP, 1, ¤t);
current = block;
while(!emu->quit) {
if(!block || !block->block || !block->done) {
// no block, of block doesn't have DynaRec content (yet, temp is not null)
// Use interpreter (should use single instruction step...)
dynarec_log(LOG_DEBUG, "%04d|Calling Interpretor @%p, emu=%p\n", GetTID(), (void*)R_RIP, emu);
Run(emu, 1);
block = DBGetBlock(emu, R_RIP, 1, ¤t);
current = block;
} else {
dynarec_log(LOG_DEBUG, "%04d|Calling DynaRec Block @%p (%p) of %d x64 instructions (father=%p) emu=%p\n", GetTID(), (void*)R_RIP, block->block, block->isize ,block->father, emu);
CHECK_FLAGS(emu);
// block is here, let's run it!
native_prolog(emu, block->block);
block = NULL;
}
if(emu->fork) {
int forktype = emu->fork;
emu->quit = 0;
emu->fork = 0;
emu = x64emu_fork(emu, forktype);
if(emu->type == EMUTYPE_MAIN) {
ejb = GetJmpBuf();
ejb->emu = emu;
ejb->jmpbuf_ok = 1;
jmpbuf_reset = 1;
if(sigsetjmp((struct __jmp_buf_tag*)ejb->jmpbuf, 1)) {
printf_log(LOG_DEBUG, "Setjmp inner DynaCall, fs=0x%x\n", ejb->emu->segs[_FS]);
addr = R_RIP;
}
}
}
}
emu->quit = 0; // reset Quit flags...
emu->df = d_none;
if(emu->quitonlongjmp && emu->longjmp) {
if(emu->quitonlongjmp==1)
emu->longjmp = 0; // don't change anything because of the longjmp
} else {
R_RBX = old_rbx;
R_RDI = old_rdi;
R_RSI = old_rsi;
R_RBP = old_rbp;
R_RSP = old_rsp;
R_RIP = old_rip; // and set back instruction pointer
}
}
#endif
// clear the setjmp
if(ejb && jmpbuf_reset)
ejb->jmpbuf_ok = 0;
}
int DynaRun(x64emu_t* emu)
{
// prepare setjump for signal handling
emu_jmpbuf_t *ejb = NULL;
#ifdef DYNAREC
int jmpbuf_reset = 1;
#endif
if(emu->type == EMUTYPE_MAIN) {
ejb = GetJmpBuf();
if(!ejb->jmpbuf_ok) {
ejb->emu = emu;
ejb->jmpbuf_ok = 1;
#ifdef DYNAREC
jmpbuf_reset = 1;
#endif
if(sigsetjmp((struct __jmp_buf_tag*)ejb->jmpbuf, 1))
printf_log(LOG_DEBUG, "Setjmp DynaRun, fs=0x%x\n", ejb->emu->segs[_FS]);
}
}
#ifdef DYNAREC
if(!box64_dynarec)
#endif
return Run(emu, 0);
#ifdef DYNAREC
else {
dynablock_t* current = NULL;
dynablock_t* block = DBGetBlock(emu, R_RIP, 1, ¤t);;
current = block;
while(!emu->quit) {
if(!block || !block->block || !block->done) {
// no block, of block doesn't have DynaRec content (yet, temp is not null)
// Use interpreter (should use single instruction step...)
dynarec_log(LOG_DEBUG, "%04d|Running Interpretor @%p, emu=%p\n", GetTID(), (void*)R_RIP, emu);
Run(emu, 1);
block = DBGetBlock(emu, R_RIP, 1, ¤t);
current = block;
} else {
dynarec_log(LOG_DEBUG, "%04d|Running DynaRec Block @%p (%p) of %d x64 insts (father=%p) emu=%p\n", GetTID(), (void*)R_RIP, block->block, block->isize, block->father, emu);
// block is here, let's run it!
native_prolog(emu, block->block);
block = NULL;
}
if(emu->fork) {
int forktype = emu->fork;
emu->quit = 0;
emu->fork = 0;
emu = x64emu_fork(emu, forktype);
if(emu->type == EMUTYPE_MAIN) {
ejb = GetJmpBuf();
ejb->emu = emu;
ejb->jmpbuf_ok = 1;
jmpbuf_reset = 1;
if(sigsetjmp((struct __jmp_buf_tag*)ejb->jmpbuf, 1))
printf_log(LOG_DEBUG, "Setjmp inner DynaRun, fs=0x%x\n", ejb->emu->segs[_FS]);
}
}
}
}
// clear the setjmp
if(ejb && jmpbuf_reset)
ejb->jmpbuf_ok = 0;
return 0;
#endif
}
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
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