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Diffstat (limited to 'gnu/usr.bin/binutils/opcodes/i386-dis.c')
-rw-r--r--gnu/usr.bin/binutils/opcodes/i386-dis.c227
1 files changed, 146 insertions, 81 deletions
diff --git a/gnu/usr.bin/binutils/opcodes/i386-dis.c b/gnu/usr.bin/binutils/opcodes/i386-dis.c
index b8c11cf887a..4e1024d6270 100644
--- a/gnu/usr.bin/binutils/opcodes/i386-dis.c
+++ b/gnu/usr.bin/binutils/opcodes/i386-dis.c
@@ -97,7 +97,9 @@ fetch_data (info, addr)
#define Iw OP_I, w_mode
#define Jb OP_J, b_mode
#define Jv OP_J, v_mode
+#if 0
#define ONE OP_ONE, 0
+#endif
#define Cd OP_C, d_mode
#define Dd OP_D, d_mode
#define Td OP_T, d_mode
@@ -139,13 +141,22 @@ fetch_data (info, addr)
#define fs OP_REG, fs_reg
#define gs OP_REG, gs_reg
-int OP_E(), OP_indirE(), OP_G(), OP_I(), OP_sI(), OP_REG();
-int OP_J(), OP_SEG();
-int OP_DIR(), OP_OFF(), OP_DSSI(), OP_ESDI(), OP_ONE(), OP_C();
-int OP_D(), OP_T(), OP_rm();
+typedef int op_rtn PARAMS ((int bytemode, int aflag, int dflag));
-static void dofloat (), putop (), append_prefix (), set_op ();
-static int get16 (), get32 ();
+static op_rtn OP_E, OP_G, OP_I, OP_indirE, OP_sI, OP_REG, OP_J, OP_DIR, OP_OFF;
+static op_rtn OP_ESDI, OP_DSSI, OP_SEG, OP_C, OP_D, OP_T, OP_rm, OP_ST;
+static op_rtn OP_STi;
+#if 0
+static op_rtn OP_ONE;
+#endif
+
+static void append_prefix PARAMS ((void));
+static void set_op PARAMS ((int op));
+static void putop PARAMS ((char *template, int aflag, int dflag));
+static void dofloat PARAMS ((int aflag, int dflag));
+static int get16 PARAMS ((void));
+static int get32 PARAMS ((void));
+static void ckprefix PARAMS ((void));
#define b_mode 1
#define v_mode 2
@@ -212,15 +223,15 @@ static int get16 (), get32 ();
struct dis386 {
char *name;
- int (*op1)();
+ op_rtn *op1;
int bytemode1;
- int (*op2)();
+ op_rtn *op2;
int bytemode2;
- int (*op3)();
+ op_rtn *op3;
int bytemode3;
};
-struct dis386 dis386[] = {
+static struct dis386 dis386[] = {
/* 00 */
{ "addb", Eb, Gb },
{ "addS", Ev, Gv },
@@ -511,7 +522,7 @@ struct dis386 dis386[] = {
{ GRP5 },
};
-struct dis386 dis386_twobyte[] = {
+static struct dis386 dis386_twobyte[] = {
/* 00 */
{ GRP6 },
{ GRP7 },
@@ -732,7 +743,7 @@ static disassemble_info *the_info;
static int mod;
static int rm;
static int reg;
-static void oappend ();
+static void oappend PARAMS ((char *s));
static char *names32[]={
"%eax","%ecx","%edx","%ebx", "%esp","%ebp","%esi","%edi",
@@ -750,7 +761,7 @@ static char *index16[] = {
"bx+si","bx+di","bp+si","bp+di","si","di","bp","bx"
};
-struct dis386 grps[][8] = {
+static struct dis386 grps[][8] = {
/* GRP1b */
{
{ "addb", Eb, Ib },
@@ -1007,9 +1018,6 @@ ckprefix ()
}
}
-static int dflag;
-static int aflag;
-
static char op1out[100], op2out[100], op3out[100];
static int op_address[3], op_ad, op_index[3];
static int start_pc;
@@ -1024,11 +1032,26 @@ static int start_pc;
* The function returns the length of this instruction in bytes.
*/
+int print_insn_x86 PARAMS ((bfd_vma pc, disassemble_info *info, int aflag,
+ int dflag));
int
print_insn_i386 (pc, info)
bfd_vma pc;
disassemble_info *info;
{
+ if (info->mach == bfd_mach_i386_i386)
+ return print_insn_x86 (pc, info, 1, 1);
+ else if (info->mach == bfd_mach_i386_i8086)
+ return print_insn_x86 (pc, info, 0, 0);
+ else
+ abort ();
+}
+
+int
+print_insn_x86 (pc, info, aflag, dflag)
+ bfd_vma pc;
+ disassemble_info *info;
+{
struct dis386 *dp;
int i;
int enter_instruction;
@@ -1083,10 +1106,6 @@ print_insn_i386 (pc, info)
return (1);
}
- /* these would be initialized to 0 if disassembling for 8086 or 286 */
- dflag = 1;
- aflag = 1;
-
if (prefixes & PREFIX_DATA)
dflag ^= 1;
@@ -1119,29 +1138,29 @@ print_insn_i386 (pc, info)
if (dp->name == NULL && dp->bytemode1 == FLOATCODE)
{
- dofloat ();
+ dofloat (aflag, dflag);
}
else
{
if (dp->name == NULL)
dp = &grps[dp->bytemode1][reg];
- putop (dp->name);
+ putop (dp->name, aflag, dflag);
obufp = op1out;
op_ad = 2;
if (dp->op1)
- (*dp->op1)(dp->bytemode1);
+ (*dp->op1)(dp->bytemode1, aflag, dflag);
obufp = op2out;
op_ad = 1;
if (dp->op2)
- (*dp->op2)(dp->bytemode2);
+ (*dp->op2)(dp->bytemode2, aflag, dflag);
obufp = op3out;
op_ad = 0;
if (dp->op3)
- (*dp->op3)(dp->bytemode3);
+ (*dp->op3)(dp->bytemode3, aflag, dflag);
}
obufp = obuf + strlen (obuf);
@@ -1200,7 +1219,7 @@ print_insn_i386 (pc, info)
return (codep - inbuf);
}
-char *float_mem[] = {
+static char *float_mem[] = {
/* d8 */
"fadds",
"fmuls",
@@ -1277,7 +1296,6 @@ char *float_mem[] = {
#define ST OP_ST, 0
#define STi OP_STi, 0
-int OP_ST(), OP_STi();
#define FGRPd9_2 NULL, NULL, 0
#define FGRPd9_4 NULL, NULL, 1
@@ -1289,7 +1307,7 @@ int OP_ST(), OP_STi();
#define FGRPde_3 NULL, NULL, 7
#define FGRPdf_4 NULL, NULL, 8
-struct dis386 float_reg[][8] = {
+static struct dis386 float_reg[][8] = {
/* d8 */
{
{ "fadd", ST, STi },
@@ -1381,7 +1399,7 @@ struct dis386 float_reg[][8] = {
};
-char *fgrps[][8] = {
+static char *fgrps[][8] = {
/* d9_2 0 */
{
"fnop","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
@@ -1430,7 +1448,9 @@ char *fgrps[][8] = {
};
static void
-dofloat ()
+dofloat (aflag, dflag)
+ int aflag;
+ int dflag;
{
struct dis386 *dp;
unsigned char floatop;
@@ -1439,9 +1459,9 @@ dofloat ()
if (mod != 3)
{
- putop (float_mem[(floatop - 0xd8) * 8 + reg]);
+ putop (float_mem[(floatop - 0xd8) * 8 + reg], aflag, dflag);
obufp = op1out;
- OP_E (v_mode);
+ OP_E (v_mode, aflag, dflag);
return;
}
codep++;
@@ -1449,7 +1469,7 @@ dofloat ()
dp = &float_reg[floatop - 0xd8][reg];
if (dp->name == NULL)
{
- putop (fgrps[dp->bytemode1][rm]);
+ putop (fgrps[dp->bytemode1][rm], aflag, dflag);
/* instruction fnstsw is only one with strange arg */
if (floatop == 0xdf
&& FETCH_DATA (the_info, codep + 1)
@@ -1458,29 +1478,33 @@ dofloat ()
}
else
{
- putop (dp->name);
+ putop (dp->name, aflag, dflag);
obufp = op1out;
if (dp->op1)
- (*dp->op1)(dp->bytemode1);
+ (*dp->op1)(dp->bytemode1, aflag, dflag);
obufp = op2out;
if (dp->op2)
- (*dp->op2)(dp->bytemode2);
+ (*dp->op2)(dp->bytemode2, aflag, dflag);
}
}
/* ARGSUSED */
-int
-OP_ST (ignore)
+static int
+OP_ST (ignore, aflag, dflag)
int ignore;
+ int aflag;
+ int dflag;
{
oappend ("%st");
return (0);
}
/* ARGSUSED */
-int
-OP_STi (ignore)
+static int
+OP_STi (ignore, aflag, dflag)
int ignore;
+ int aflag;
+ int dflag;
{
sprintf (scratchbuf, "%%st(%d)", rm);
oappend (scratchbuf);
@@ -1490,8 +1514,10 @@ OP_STi (ignore)
/* capital letters in template are macros */
static void
-putop (template)
+putop (template, aflag, dflag)
char *template;
+ int aflag;
+ int dflag;
{
char *p;
@@ -1548,17 +1574,21 @@ append_prefix ()
oappend ("%gs:");
}
-int
-OP_indirE (bytemode)
+static int
+OP_indirE (bytemode, aflag, dflag)
int bytemode;
+ int aflag;
+ int dflag;
{
oappend ("*");
- return OP_E (bytemode);
+ return OP_E (bytemode, aflag, dflag);
}
-int
-OP_E (bytemode)
+static int
+OP_E (bytemode, aflag, dflag)
int bytemode;
+ int aflag;
+ int dflag;
{
int disp;
@@ -1688,9 +1718,11 @@ OP_E (bytemode)
return 0;
}
-int
-OP_G (bytemode)
+static int
+OP_G (bytemode, aflag, dflag)
int bytemode;
+ int aflag;
+ int dflag;
{
switch (bytemode)
{
@@ -1748,9 +1780,11 @@ set_op (op)
op_address[op_ad] = op;
}
-int
-OP_REG (code)
+static int
+OP_REG (code, aflag, dflag)
int code;
+ int aflag;
+ int dflag;
{
char *s;
@@ -1784,9 +1818,11 @@ OP_REG (code)
return (0);
}
-int
-OP_I (bytemode)
+static int
+OP_I (bytemode, aflag, dflag)
int bytemode;
+ int aflag;
+ int dflag;
{
int op;
@@ -1814,9 +1850,11 @@ OP_I (bytemode)
return (0);
}
-int
-OP_sI (bytemode)
+static int
+OP_sI (bytemode, aflag, dflag)
int bytemode;
+ int aflag;
+ int dflag;
{
int op;
@@ -1844,9 +1882,11 @@ OP_sI (bytemode)
return (0);
}
-int
-OP_J (bytemode)
+static int
+OP_J (bytemode, aflag, dflag)
int bytemode;
+ int aflag;
+ int dflag;
{
int disp;
int mask = -1;
@@ -1881,9 +1921,11 @@ OP_J (bytemode)
}
/* ARGSUSED */
-int
-OP_SEG (dummy)
+static int
+OP_SEG (dummy, aflag, dflag)
int dummy;
+ int aflag;
+ int dflag;
{
static char *sreg[] = {
"%es","%cs","%ss","%ds","%fs","%gs","%?","%?",
@@ -1893,9 +1935,11 @@ OP_SEG (dummy)
return (0);
}
-int
-OP_DIR (size)
+static int
+OP_DIR (size, aflag, dflag)
int size;
+ int aflag;
+ int dflag;
{
int seg, offset;
@@ -1934,9 +1978,11 @@ OP_DIR (size)
}
/* ARGSUSED */
-int
-OP_OFF (bytemode)
+static int
+OP_OFF (bytemode, aflag, dflag)
int bytemode;
+ int aflag;
+ int dflag;
{
int off;
@@ -1953,9 +1999,11 @@ OP_OFF (bytemode)
}
/* ARGSUSED */
-int
-OP_ESDI (dummy)
- int dummy;
+static int
+OP_ESDI (dummy, aflag, dflag)
+ int dummy;
+ int aflag;
+ int dflag;
{
oappend ("%es:(");
oappend (aflag ? "%edi" : "%di");
@@ -1964,9 +2012,11 @@ OP_ESDI (dummy)
}
/* ARGSUSED */
-int
-OP_DSSI (dummy)
- int dummy;
+static int
+OP_DSSI (dummy, aflag, dflag)
+ int dummy;
+ int aflag;
+ int dflag;
{
oappend ("%ds:(");
oappend (aflag ? "%esi" : "%si");
@@ -1974,19 +2024,28 @@ OP_DSSI (dummy)
return (0);
}
+#if 0
+/* Not used. */
+
/* ARGSUSED */
-int
-OP_ONE (dummy)
- int dummy;
+static int
+OP_ONE (dummy, aflag, dflag)
+ int dummy;
+ int aflag;
+ int dflag;
{
oappend ("1");
return (0);
}
+#endif
+
/* ARGSUSED */
-int
-OP_C (dummy)
- int dummy;
+static int
+OP_C (dummy, aflag, dflag)
+ int dummy;
+ int aflag;
+ int dflag;
{
codep++; /* skip mod/rm */
sprintf (scratchbuf, "%%cr%d", reg);
@@ -1995,9 +2054,11 @@ OP_C (dummy)
}
/* ARGSUSED */
-int
-OP_D (dummy)
- int dummy;
+static int
+OP_D (dummy, aflag, dflag)
+ int dummy;
+ int aflag;
+ int dflag;
{
codep++; /* skip mod/rm */
sprintf (scratchbuf, "%%db%d", reg);
@@ -2006,9 +2067,11 @@ OP_D (dummy)
}
/* ARGSUSED */
-int
-OP_T (dummy)
+static int
+OP_T (dummy, aflag, dflag)
int dummy;
+ int aflag;
+ int dflag;
{
codep++; /* skip mod/rm */
sprintf (scratchbuf, "%%tr%d", reg);
@@ -2016,9 +2079,11 @@ OP_T (dummy)
return (0);
}
-int
-OP_rm (bytemode)
+static int
+OP_rm (bytemode, aflag, dflag)
int bytemode;
+ int aflag;
+ int dflag;
{
switch (bytemode)
{
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-14 13:25:07 +0000