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// Copyright (c) 1997,1998 Albrecht Kleine All rights reserved
// Copyright (c) 1998 Artur Biesiadowski, Rene Schmit, Olivier Refalo
//
// tya file version #300
#include "tyaconfig.h"
#include <stdio.h>
#ifdef USE_SYSLOG
#include <syslog.h>
#endif
#include <native.h>
#include <monitor.h>
#include <time.h>
#include "tya.h"
#ifdef VERBOSE_ASM86
const char* rname[] =
{
"eax", "ecx", "edx", "ebx", "esp", "ebp","esi", "edi"
};
const char* rname8[] =
{
"al","cl","dl","bl","ah","ch","dh","bh"
};
int decode_sib_scale[] =
{
1, 2 , 4 ,8
};
// utility function do decode sib encodings
const char * sibdecode( int sibbyte )
{
static char answer[20];
int regscaled;
int regoffset;
int scale;
regoffset = sibbyte & 0x07;
regscaled = (sibbyte & 0x38) >> 3;
scale = decode_sib_scale[ (sibbyte & 0xc0)>>6];
sprintf( answer, "%s+%d*%s", rname[regoffset], scale, rname[regscaled]);
return answer;
}
//----------------utility functions to decode bytecode--------------------
int readU2(unsigned char *p)
{
int x;
x =*(p)<<8;
p++;
x+=*p;
return x;
}
int readU4(unsigned char *p)
{
int x;
x =*(p)<<24;
p++;
x+=*(p)<<16;
p++;
x+=*(p)<<8;
p++;
x+=*p;
return x;
}
int oneParamByte(unsigned char *code)
{
char b=*code;
iprintf("%d",b);
return 1;
}
int twoParamByte(unsigned char *code)
{
char b,c;
b=*code;
c=*(code+1);
iprintf("%d %d",b,c);
return 2;
}
int newArrayParam(unsigned char *code)
{
char c;
iprintf("%d",readU2(code));
c=*(code+2);
iprintf(" %d",c);
return 3;
}
int oneParamLong(unsigned char *code)
{
iprintf("%d",readU4(code));
return 4;
}
int oneParamShort(unsigned char *code)
{
iprintf("%d",readU2(code) );
return 2;
}
int interfaceParam(unsigned char *code)
{
char c;
iprintf("%d",readU2(code));
c=*code;
iprintf("%d",c);
return 4;
}
int nopParam(unsigned char *code)
{
return 1;
}
struct java_opcodes
{
char *name; /* opcode name */
int (*print_param)(unsigned char *code); /* function to print its parameters */
};
struct java_opcodes opcodes[256] = {
{ "nop", nopParam },
{ "aconst_null", NULL },
{ "iconst_m1", NULL },
{ "iconst_0", NULL },
{ "iconst_1", NULL },
{ "iconst_2", NULL },
{ "iconst_3", NULL },
{ "iconst_4", NULL },
{ "iconst_5", NULL },
{ "lconst_0", NULL },
{ "lconst_1", NULL },
{ "fconst_0", NULL },
{ "fconst_1", NULL },
{ "fconst_2", NULL },
{ "dconst_0", NULL },
{ "dconst_1",NULL },
{ "bipush", oneParamByte },
{ "sipush", oneParamShort },
{ "ldc" , oneParamByte },
{ "ldc_w", oneParamShort },
{ "ldc2_w", oneParamShort },
{ "iload", oneParamByte },
{ "lload", oneParamByte },
{ "fload", oneParamByte },
{ "dload", oneParamByte },
{ "aload", oneParamByte },
{ "iload_0",NULL },
{ "iload_1",NULL },
{ "iload_2",NULL },
{ "iload_3",NULL },
{ "lload_0",NULL },
{ "lload_1",NULL },
{ "lload_2",NULL },
{ "lload_3",NULL },
{ "fload_0",NULL },
{ "fload_1",NULL },
{ "fload_2",NULL },
{ "fload_3",NULL },
{ "dload_0",NULL },
{ "dload_1",NULL },
{ "dload_2",NULL },
{ "dload_3",NULL },
{ "aload_0",NULL },
{ "aload_1",NULL },
{ "aload_2",NULL },
{ "aload_3",NULL },
{ "iaload", NULL },
{ "laload", NULL },
{ "faload", NULL },
{ "daload", NULL },
{ "aaload", NULL },
{ "baload", NULL },
{ "caload", NULL },
{ "saload", NULL },
{ "istore", oneParamByte },
{ "lstore", oneParamByte },
{ "fstore", oneParamByte },
{ "dstore", oneParamByte },
{ "astore", oneParamByte },
{ "istore_0", NULL },
{ "istore_1", NULL },
{ "istore_2", NULL },
{ "istore_3", NULL },
{ "lstore_0", NULL },
{ "lstore_1", NULL },
{ "lstore_2", NULL },
{ "lstore_3", NULL },
{ "fstore_0", NULL },
{ "fstore_1", NULL },
{ "fstore_2", NULL },
{ "fstore_3", NULL },
{ "dstore_0", NULL },
{ "dstore_1", NULL },
{ "dstore_2", NULL },
{ "dstore_3", NULL },
{ "astore_0", NULL },
{ "astore_1", NULL },
{ "astore_2", NULL },
{ "astore_3", NULL },
{ "iastore", NULL },
{ "lastore", NULL },
{ "fastore", NULL },
{ "dastore", NULL },
{ "aastore", NULL },
{ "bastore", NULL },
{ "castore", NULL },
{ "sastore", NULL },
{ "pop", NULL },
{ "pop2", NULL },
{ "dup", NULL },
{ "dup_x1", NULL },
{ "dup_x2", NULL },
{ "dup2", NULL },
{ "dup2_x1", NULL },
{ "dup2_x2", NULL },
{ "swap", NULL},
{ "iadd", NULL },
{ "ladd", NULL },
{ "fadd", NULL },
{ "dadd", NULL},
{ "isub", NULL },
{ "lsub", NULL },
{ "fsub", NULL },
{ "dsub", NULL },
{ "imul", NULL },
{ "lmul", NULL },
{ "fmul", NULL },
{ "dmul", NULL },
{ "idiv", NULL },
{ "ldiv", NULL },
{ "fdiv", NULL },
{ "ddiv", NULL },
{ "irem", NULL },
{ "lrem", NULL },
{ "frem", NULL },
{ "drem", NULL },
{ "ineg", NULL },
{ "lneg", NULL },
{ "fneg", NULL },
{ "dneg", NULL },
{ "ishl", NULL },
{ "lshl", NULL },
{ "ishr", NULL },
{ "lshr", NULL },
{ "iushr", NULL },
{ "lushr", NULL },
{ "iand", NULL },
{ "land", NULL },
{ "ior", NULL },
{ "lor", NULL },
{ "ixor", NULL },
{ "lxor", NULL },
{ "iinc", twoParamByte },
{ "i2l", NULL },
{ "i2f", NULL },
{ "i2d", NULL },
{ "l2i", NULL },
{ "l2f", NULL },
{ "l2d", NULL },
{ "f2i", NULL },
{ "f2l", NULL },
{ "f2d", NULL },
{ "d2i", NULL },
{ "d2l", NULL },
{ "d2f", NULL },
{ "i2b", NULL },
{ "i2c", NULL },
{ "i2s", NULL },
{ "lcmp", oneParamShort },
{ "fcmpl", oneParamShort },
{ "fcmpg", oneParamShort },
{ "dcmpl", oneParamShort },
{ "dcmpg", oneParamShort },
{ "ifeq", oneParamShort },
{ "ifne", oneParamShort },
{ "iflt", oneParamShort },
{ "ifge", oneParamShort },
{ "ifgt", oneParamShort },
{ "ifle", oneParamShort },
{ "if_icmpeq",oneParamShort },
{ "if_icmpne",oneParamShort },
{ "if_icmplt",oneParamShort },
{ "if_icmpge",oneParamShort },
{ "if_icmpgt",oneParamShort },
{ "if_icmple",oneParamShort },
{ "if_acmpeq",oneParamShort },
{ "if_acmpne",oneParamShort },
{ "goto",oneParamShort },
{ "jsr",oneParamShort },
{ "ret", oneParamByte },
{ "tableswitch", NULL },
{ "lookupswitch", NULL },
{ "ireturn",NULL },
{ "lreturn",NULL },
{ "freturn",NULL },
{ "dreturn",NULL },
{ "areturn",NULL },
{ "return" ,NULL },
{ "getstatic",oneParamShort },
{ "putstatic",oneParamShort },
{ "getfield",oneParamShort },
{ "putfield",oneParamShort },
{ "invokevirtual", oneParamShort },
{ "invokespecial", oneParamShort },
{ "invokestatic", oneParamShort },
{ "invokeinterface", interfaceParam},
{ "unknown",NULL },
{ "new", oneParamShort },
{ "newarray", oneParamByte },
{ "anewarray", oneParamShort },
{ "arraylength",NULL },
{ "athrow", NULL },
{ "checkcast", oneParamShort },
{ "instanceof", oneParamShort },
{ "monitorenter",NULL },
{ "monitorexit",NULL },
{ "wide",NULL },
{ "multianewarray", newArrayParam },
{ "ifnull", oneParamShort },
{ "ifnonnull", oneParamShort },
{ "goto_w", oneParamLong },
{ "jsr_w" , oneParamLong },
{ "breakpoint", NULL },
{ "ldc_quick", oneParamByte }, /*203*/
{ "unknown" ,NULL },
{ "ldc2w_quick" , oneParamShort },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "ret_w" ,NULL },
{ "getstatic_quick" ,oneParamShort },
{ "putstatic_quick" ,oneParamShort }, /*211*/
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "invokenonvirtual_quick" ,oneParamShort },
{ "unknown" ,NULL },
{ "invokestatic_quick" ,oneParamShort }, /*217*/
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "undocumented_invoke" ,oneParamShort }, /*220*/
{ "new_quick" ,oneParamShort },
{ "newarray_quick" ,oneParamShort },
{ "unknown" ,NULL },
{ "checkcast_quick" ,oneParamShort }, /*224*/
{ "instanceof_quick" ,oneParamShort },
{ "invokevirtual_quick" ,oneParamShort },
{ "getfield_quick_w" ,oneParamShort },
{ "putfield_quick_w" ,oneParamShort },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "unknown" ,NULL },
{ "impdep1" ,NULL },
{ "impdep2" ,NULL },
};
/*
print on stderr the bytecode pointed by p
returns the number of bytes read.
*/
int decode_bytecode(unsigned char *code)
{
int (*param_ptr)(unsigned char *c);
int current_bytecode=0;
current_bytecode=(int)*code;
lprintf("%s ",opcodes[current_bytecode].name);
param_ptr=(opcodes[current_bytecode].print_param);
if(param_ptr!=NULL)
return 1+(*param_ptr)(code+1);
else
return 1;
}
#endif
//-----------------------------------------------------------------------------
// useful for special debugging
//
void printHexDump (unsigned char * p_Code,int p_Size, char * p_Label)
{
int l_Count = -1;
unsigned char * l_End = p_Code + p_Size;
iprintf("\n");
while (p_Code < l_End)
{
if (++l_Count % 20)
iprintf("%02x ",*p_Code++);
else
{
iprintf("\n%s %5d (%p) : %02x ", p_Label, l_Count, p_Code, *p_Code);
p_Code++;
}
}
iprintf ("\n");
fflush (stderr);
}
//-----------------------------------------------------------------
#ifndef USE_SYSLOG
static FILE *logfile = NULL;
#endif
void
lprintf(char *fmt, ...)
{
va_list ap;
#ifdef USE_SYSLOG
char buf [1024];
va_start (ap, fmt);
vsnprintf (buf, sizeof (buf), fmt, ap);
va_end (ap);
syslog (LOG_USER | LOG_NOTICE, "%s", buf);
#else
if(logfile == NULL)
return;
va_start(ap, fmt);
vfprintf(logfile, fmt, ap);
va_end(ap);
fflush(logfile);
#endif
}
#ifdef USE_SYSLOG
void iprintf (char *fmt, ...)
{
va_list ap;
char buf [1024];
va_start (ap, fmt);
vsnprintf (buf, sizeof (buf), fmt, ap);
va_end (ap);
syslog (LOG_USER | LOG_INFO, "%s", buf);
}
#ifdef DEBUG
void
dprintf (FILE *ignore, char *fmt, ...)
{
va_list ap;
char buf [1024];
va_start (ap, fmt);
vsnprintf (buf, sizeof (buf), fmt, ap);
va_end (ap);
syslog (LOG_USER | LOG_DEBUG, "%s", buf);
}
#endif
#endif
void
lopen(void)
{
time_t now;
char s[1024];
#ifdef USE_SYSLOG
openlog ("jit4java", LOG_PID, LOG_USER);
#else
char *logname;
if((logname = getenv("TYA_LOGFILE")) != NULL) {
if(*logname == '\0')
{
logfile = stderr;
return;
}
logfile = fopen(logname, "a");
}
if(logfile == NULL)
logfile = stderr;
else
#endif
{
now = time(NULL);
strftime(s, sizeof(s), "%Y.%m.%d-%H:%M:%S", localtime(&now));
lprintf("%s\n", s);
}
}
void
lclose(void)
{
#ifndef USE_SYSLOG
if(logfile != NULL && logfile != stderr)
fclose(logfile);
logfile = NULL;
#endif
}
#ifdef GATHER_STATS
void tyaprintstats()
{
printf("-----------------------------------------\n");
printf("invokevirtual: %-10d\n", stats_opcodes[0xB6]);
printf("invokeinterface: %-10d\n", stats_opcodes[0xB9]);
printf("invokespecial: %-10d\n", stats_opcodes[0xB7]);
printf("invokestatic: %-10d\n", stats_opcodes[0xB8]);
// interfaces/all
printf("checkcast(interf): %-10d(%d)\n",
stats_opcodes[0xC0], stats_checkcast_interface);
printf("newobj: %-10d\n", stats_opcodes[0xBB]);
printf("newarr(both): %-10d\n",
stats_opcodes[0xBC]+stats_opcodes[0xBD]);
printf("-----------------------------------------\n");
}
#endif
#if 0
// unused
unsigned int get87precision(void)
{
unsigned int cword87;
__asm__ ("fstcw %0" : "=m" (cword87) );
return (cword87 & 0x300) >>8;
}
// NOTE: for more similar stuff look in /usr/include/fpu_control.h
// example:
// __setfpucw (_FPU_DEFAULT & ~(_FPU_MASK_IM | _FPU_MASK_ZM | _FPU_MASK_OM));
// ...plus some nice macros..
#endif
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