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#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <setjmp.h>
#include "debug.h"
#include "box64context.h"
#include "dynarec.h"
#include "emu/x64emu_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"
#include "dynarec_next.h"
#endif
#ifdef HAVE_TRACE
#include "elfloader.h"
#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)
{
int is32bits = (R_CS == 0x23);
#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/%s)\n", x2-4, db, db?(void*)getX64Address(db, (uintptr_t)x2-4):NULL, db?getAddrFunctionName(getX64Address(db, (uintptr_t)x2-4)):"(nil)");
} else if(addr<0x10000) {
dynablock_t* db = FindDynablockFromNativeAddress(x2-4);
printf_log(LOG_NONE, "Warning, jumping to low address %p from %p (db=%p, x64addr=%p/%s)\n", (void*)addr, x2-4, db, db?(void*)getX64Address(db, (uintptr_t)x2-4):NULL, db?getAddrFunctionName(getX64Address(db, (uintptr_t)x2-4)):"(nil)");
}
#endif
void * jblock;
dynablock_t* block = NULL;
if(hasAlternate((void*)addr)) {
printf_log(LOG_DEBUG, "Jmp address has alternate: %p", (void*)addr);
if(box64_log<LOG_DEBUG) dynarec_log(LOG_INFO, "Jmp address has alternate: %p", (void*)addr);
uintptr_t old_addr = 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 = DBAlternateBlock(emu, old_addr, addr, is32bits);
} else
block = DBGetBlock(emu, addr, 1, is32bits);
if(!block) {
#ifdef HAVE_TRACE
if(LOG_INFO<=box64_dynarec_log) {
dynablock_t* db = FindDynablockFromNativeAddress(x2-4);
elfheader_t* h = FindElfAddress(my_context, (uintptr_t)x2-4);
dynarec_log(LOG_INFO, "Warning, jumping to a no-block address %p from %p (db=%p, x64addr=%p(elf=%s), RIP=%p)\n", (void*)addr, x2-4, db, db?(void*)getX64Address(db, (uintptr_t)x2-4):NULL, h?ElfName(h):"(none)", (void*)*x3);
}
#endif
//tableupdate(native_epilog, addr, table);
return native_epilog;
}
if(!block->done) {
// not finished yet... leave linker
#ifdef HAVE_TRACE
if(box64_dynarec_log && !block->isize) {
dynablock_t* db = FindDynablockFromNativeAddress(x2-4);
printf_log(LOG_NONE, "Warning, NULL block at %p from %p (db=%p, x64addr=%p/%s)\n", (void*)addr, x2-4, db, db?(void*)getX64Address(db, (uintptr_t)x2-4):NULL, db?getAddrFunctionName(getX64Address(db, (uintptr_t)x2-4)):"(nil)");
}
#endif
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
void DynaCall(x64emu_t* emu, uintptr_t addr)
{
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;
// save defered flags
deferred_flags_t old_df = emu->df;
multiuint_t old_op1 = emu->op1;
multiuint_t old_op2 = emu->op2;
multiuint_t old_res = emu->res;
multiuint_t old_op1_sav= emu->op1_sav;
multiuint_t old_res_sav= emu->res_sav;
deferred_flags_t old_df_sav= emu->df_sav;
// uc_link
x64_ucontext_t* old_uc_link = emu->uc_link;
emu->uc_link = NULL;
PushExit(emu);
R_RIP = addr;
emu->df = d_none;
DynaRun(emu);
emu->quit = 0; // reset Quit flags...
emu->df = d_none;
emu->uc_link = old_uc_link;
if(emu->flags.quitonlongjmp && emu->flags.longjmp) {
if(emu->flags.quitonlongjmp==1)
emu->flags.longjmp = 0; // don't change anything because of the longjmp
} else {
// restore defered flags
emu->df = old_df;
emu->op1 = old_op1;
emu->op2 = old_op2;
emu->res = old_res;
emu->op1_sav = old_op1_sav;
emu->res_sav = old_res_sav;
emu->df_sav = old_df_sav;
// and the old registers
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
}
}
int my_setcontext(x64emu_t* emu, void* ucp);
void DynaRun(x64emu_t* emu)
{
// prepare setjump for signal handling
JUMPBUFF jmpbuf[1] = {0};
int skip = 0;
JUMPBUFF *old_jmpbuf = emu->jmpbuf;
#ifdef RV64
uintptr_t old_savesp = emu->xSPSave;
#endif
emu->flags.jmpbuf_ready = 0;
while(!(emu->quit)) {
if(!emu->jmpbuf || (emu->flags.need_jmpbuf && emu->jmpbuf!=jmpbuf)) {
emu->jmpbuf = jmpbuf;
#ifdef RV64
emu->old_savedsp = emu->xSPSave;
#endif
emu->flags.jmpbuf_ready = 1;
#ifdef ANDROID
if((skip=sigsetjmp(*(JUMPBUFF*)emu->jmpbuf, 1)))
#else
if((skip=sigsetjmp(emu->jmpbuf, 1)))
#endif
{
printf_log(LOG_DEBUG, "Setjmp DynaRun, fs=0x%x\n", emu->segs[_FS]);
#ifdef DYNAREC
if(box64_dynarec_test) {
if(emu->test.clean)
x64test_check(emu, R_RIP);
emu->test.clean = 0;
}
#endif
}
}
if(emu->flags.need_jmpbuf)
emu->flags.need_jmpbuf = 0;
#ifdef DYNAREC
if(!box64_dynarec)
#endif
Run(emu, 0);
#ifdef DYNAREC
else {
int is32bits = (emu->segs[_CS]==0x23);
dynablock_t* block = (skip)?NULL:DBGetBlock(emu, R_RIP, 1, is32bits);
if(!block || !block->block || !block->done || ACCESS_FLAG(F_TF)) {
skip = 0;
// 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 Interpreter @%p, emu=%p\n", GetTID(), (void*)R_RIP, emu);
if(box64_dynarec_test)
emu->test.clean = 0;
Run(emu, 1);
} else {
dynarec_log(LOG_DEBUG, "%04d|Running DynaRec Block @%p (%p) of %d x64 insts (hash=0x%x) emu=%p\n", GetTID(), (void*)R_RIP, block->block, block->isize, block->hash, emu);
// block is here, let's run it!
native_prolog(emu, block->block);
extern int running32bits;
if(emu->segs[_CS]==0x23)
running32bits = 1;
}
if(emu->fork) {
int forktype = emu->fork;
emu->quit = 0;
emu->fork = 0;
emu = x64emu_fork(emu, forktype);
}
if(emu->quit && emu->uc_link) {
emu->quit = 0;
my_setcontext(emu, emu->uc_link);
}
}
#endif
if(emu->flags.need_jmpbuf)
emu->quit = 0;
}
// clear the setjmp
emu->jmpbuf = old_jmpbuf;
#ifdef RV64
emu->xSPSave = old_savesp;
#endif
}
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