mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-11-24 20:49:43 +00:00
* ppc-opc.c: Remove NULL pointer checks. Formatting. Remove
extraneous ATTRIBUTE_UNUSED. * ppc-dis.c (print_insn_powerpc): Always pass a valid address to operand->extract.
This commit is contained in:
Alan Modra
parent
503e66900f
commit
8427c42425
@ -1,3 +1,10 @@
|
||||
2003-07-07 Alan Modra <amodra@bigpond.net.au>
|
||||
|
||||
* ppc-opc.c: Remove NULL pointer checks. Formatting. Remove
|
||||
extraneous ATTRIBUTE_UNUSED.
|
||||
* ppc-dis.c (print_insn_powerpc): Always pass a valid address to
|
||||
operand->extract.
|
||||
|
||||
2003-07-04 Alan Modra <amodra@bigpond.net.au>
|
||||
|
||||
* ppc-opc.c: Convert to C90, removing unnecessary prototypes and
|
||||
|
||||
@ -1,5 +1,6 @@
|
||||
/* ppc-dis.c -- Disassemble PowerPC instructions
|
||||
Copyright 1994, 1995, 2000, 2001, 2002 Free Software Foundation, Inc.
|
||||
Copyright 1994, 1995, 2000, 2001, 2002, 2003
|
||||
Free Software Foundation, Inc.
|
||||
Written by Ian Lance Taylor, Cygnus Support
|
||||
|
||||
This file is part of GDB, GAS, and the GNU binutils.
|
||||
@ -214,7 +215,7 @@ print_insn_powerpc (memaddr, info, bigendian, dialect)
|
||||
|
||||
/* Extract the value from the instruction. */
|
||||
if (operand->extract)
|
||||
value = (*operand->extract) (insn, dialect, (int *) NULL);
|
||||
value = (*operand->extract) (insn, dialect, &invalid);
|
||||
else
|
||||
{
|
||||
value = (insn >> operand->shift) & ((1 << operand->bits) - 1);
|
||||
|
||||
@ -563,8 +563,7 @@ extract_bat (unsigned long insn,
|
||||
int dialect ATTRIBUTE_UNUSED,
|
||||
int *invalid)
|
||||
{
|
||||
if (invalid != NULL
|
||||
&& ((insn >> 21) & 0x1f) != ((insn >> 16) & 0x1f))
|
||||
if (((insn >> 21) & 0x1f) != ((insn >> 16) & 0x1f))
|
||||
*invalid = 1;
|
||||
return 0;
|
||||
}
|
||||
@ -590,8 +589,7 @@ extract_bba (unsigned long insn,
|
||||
int dialect ATTRIBUTE_UNUSED,
|
||||
int *invalid)
|
||||
{
|
||||
if (invalid != NULL
|
||||
&& ((insn >> 16) & 0x1f) != ((insn >> 11) & 0x1f))
|
||||
if (((insn >> 16) & 0x1f) != ((insn >> 11) & 0x1f))
|
||||
*invalid = 1;
|
||||
return 0;
|
||||
}
|
||||
@ -658,20 +656,18 @@ extract_bdm (unsigned long insn,
|
||||
int dialect,
|
||||
int *invalid)
|
||||
{
|
||||
if (invalid != NULL)
|
||||
if ((dialect & PPC_OPCODE_POWER4) == 0)
|
||||
{
|
||||
if ((dialect & PPC_OPCODE_POWER4) == 0)
|
||||
{
|
||||
if (((insn & (1 << 21)) == 0) != ((insn & (1 << 15)) == 0))
|
||||
*invalid = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
if ((insn & (0x17 << 21)) != (0x06 << 21)
|
||||
&& (insn & (0x1d << 21)) != (0x18 << 21))
|
||||
*invalid = 1;
|
||||
}
|
||||
if (((insn & (1 << 21)) == 0) != ((insn & (1 << 15)) == 0))
|
||||
*invalid = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
if ((insn & (0x17 << 21)) != (0x06 << 21)
|
||||
&& (insn & (0x1d << 21)) != (0x18 << 21))
|
||||
*invalid = 1;
|
||||
}
|
||||
|
||||
return ((insn & 0xfffc) ^ 0x8000) - 0x8000;
|
||||
}
|
||||
|
||||
@ -706,20 +702,18 @@ extract_bdp (unsigned long insn,
|
||||
int dialect,
|
||||
int *invalid)
|
||||
{
|
||||
if (invalid != NULL)
|
||||
if ((dialect & PPC_OPCODE_POWER4) == 0)
|
||||
{
|
||||
if ((dialect & PPC_OPCODE_POWER4) == 0)
|
||||
{
|
||||
if (((insn & (1 << 21)) == 0) == ((insn & (1 << 15)) == 0))
|
||||
*invalid = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
if ((insn & (0x17 << 21)) != (0x07 << 21)
|
||||
&& (insn & (0x1d << 21)) != (0x19 << 21))
|
||||
*invalid = 1;
|
||||
}
|
||||
if (((insn & (1 << 21)) == 0) == ((insn & (1 << 15)) == 0))
|
||||
*invalid = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
if ((insn & (0x17 << 21)) != (0x07 << 21)
|
||||
&& (insn & (0x1d << 21)) != (0x19 << 21))
|
||||
*invalid = 1;
|
||||
}
|
||||
|
||||
return ((insn & 0xfffc) ^ 0x8000) - 0x8000;
|
||||
}
|
||||
|
||||
@ -783,8 +777,7 @@ insert_bo (unsigned long insn,
|
||||
int dialect,
|
||||
const char **errmsg)
|
||||
{
|
||||
if (errmsg != NULL
|
||||
&& ! valid_bo (value, dialect))
|
||||
if (!valid_bo (value, dialect))
|
||||
*errmsg = _("invalid conditional option");
|
||||
return insn | ((value & 0x1f) << 21);
|
||||
}
|
||||
@ -797,8 +790,7 @@ extract_bo (unsigned long insn,
|
||||
long value;
|
||||
|
||||
value = (insn >> 21) & 0x1f;
|
||||
if (invalid != NULL
|
||||
&& ! valid_bo (value, dialect))
|
||||
if (!valid_bo (value, dialect))
|
||||
*invalid = 1;
|
||||
return value;
|
||||
}
|
||||
@ -813,13 +805,11 @@ insert_boe (unsigned long insn,
|
||||
int dialect,
|
||||
const char **errmsg)
|
||||
{
|
||||
if (errmsg != NULL)
|
||||
{
|
||||
if (! valid_bo (value, dialect))
|
||||
*errmsg = _("invalid conditional option");
|
||||
else if ((value & 1) != 0)
|
||||
*errmsg = _("attempt to set y bit when using + or - modifier");
|
||||
}
|
||||
if (!valid_bo (value, dialect))
|
||||
*errmsg = _("invalid conditional option");
|
||||
else if ((value & 1) != 0)
|
||||
*errmsg = _("attempt to set y bit when using + or - modifier");
|
||||
|
||||
return insn | ((value & 0x1f) << 21);
|
||||
}
|
||||
|
||||
@ -831,23 +821,22 @@ extract_boe (unsigned long insn,
|
||||
long value;
|
||||
|
||||
value = (insn >> 21) & 0x1f;
|
||||
if (invalid != NULL
|
||||
&& ! valid_bo (value, dialect))
|
||||
if (!valid_bo (value, dialect))
|
||||
*invalid = 1;
|
||||
return value & 0x1e;
|
||||
}
|
||||
|
||||
/* The DQ field in a DQ form instruction. This is like D, but the
|
||||
lower four bits are forced to zero. */
|
||||
/* The DQ field in a DQ form instruction. This is like D, but the
|
||||
lower four bits are forced to zero. */
|
||||
|
||||
/*ARGSUSED*/
|
||||
static unsigned long
|
||||
insert_dq (unsigned long insn,
|
||||
long value,
|
||||
int dialect ATTRIBUTE_UNUSED,
|
||||
const char ** errmsg ATTRIBUTE_UNUSED)
|
||||
const char **errmsg)
|
||||
{
|
||||
if ((value & 0xf) != 0 && errmsg != NULL)
|
||||
if ((value & 0xf) != 0)
|
||||
*errmsg = _("offset not a multiple of 16");
|
||||
return insn | (value & 0xfff0);
|
||||
}
|
||||
@ -865,11 +854,11 @@ static unsigned long
|
||||
insert_ev2 (unsigned long insn,
|
||||
long value,
|
||||
int dialect ATTRIBUTE_UNUSED,
|
||||
const char ** errmsg ATTRIBUTE_UNUSED)
|
||||
const char **errmsg)
|
||||
{
|
||||
if ((value & 1) != 0 && errmsg != NULL)
|
||||
if ((value & 1) != 0)
|
||||
*errmsg = _("offset not a multiple of 2");
|
||||
if ((value > 62) != 0 && errmsg != NULL)
|
||||
if ((value > 62) != 0)
|
||||
*errmsg = _("offset greater than 62");
|
||||
return insn | ((value & 0x3e) << 10);
|
||||
}
|
||||
@ -886,11 +875,11 @@ static unsigned long
|
||||
insert_ev4 (unsigned long insn,
|
||||
long value,
|
||||
int dialect ATTRIBUTE_UNUSED,
|
||||
const char **errmsg ATTRIBUTE_UNUSED)
|
||||
const char **errmsg)
|
||||
{
|
||||
if ((value & 3) != 0 && errmsg != NULL)
|
||||
if ((value & 3) != 0)
|
||||
*errmsg = _("offset not a multiple of 4");
|
||||
if ((value > 124) != 0 && errmsg != NULL)
|
||||
if ((value > 124) != 0)
|
||||
*errmsg = _("offset greater than 124");
|
||||
return insn | ((value & 0x7c) << 9);
|
||||
}
|
||||
@ -907,11 +896,11 @@ static unsigned long
|
||||
insert_ev8 (unsigned long insn,
|
||||
long value,
|
||||
int dialect ATTRIBUTE_UNUSED,
|
||||
const char **errmsg ATTRIBUTE_UNUSED)
|
||||
const char **errmsg)
|
||||
{
|
||||
if ((value & 7) != 0 && errmsg != NULL)
|
||||
if ((value & 7) != 0)
|
||||
*errmsg = _("offset not a multiple of 8");
|
||||
if ((value > 248) != 0 && errmsg != NULL)
|
||||
if ((value > 248) != 0)
|
||||
*errmsg = _("offset greater than 248");
|
||||
return insn | ((value & 0xf8) << 8);
|
||||
}
|
||||
@ -919,7 +908,7 @@ insert_ev8 (unsigned long insn,
|
||||
static long
|
||||
extract_ev8 (unsigned long insn,
|
||||
int dialect ATTRIBUTE_UNUSED,
|
||||
int * invalid ATTRIBUTE_UNUSED)
|
||||
int *invalid ATTRIBUTE_UNUSED)
|
||||
{
|
||||
return (insn >> 8) & 0xf8;
|
||||
}
|
||||
@ -934,7 +923,7 @@ insert_ds (unsigned long insn,
|
||||
int dialect ATTRIBUTE_UNUSED,
|
||||
const char **errmsg)
|
||||
{
|
||||
if ((value & 3) != 0 && errmsg != NULL)
|
||||
if ((value & 3) != 0)
|
||||
*errmsg = _("offset not a multiple of 4");
|
||||
return insn | (value & 0xfffc);
|
||||
}
|
||||
@ -957,7 +946,7 @@ insert_de (unsigned long insn,
|
||||
int dialect ATTRIBUTE_UNUSED,
|
||||
const char **errmsg)
|
||||
{
|
||||
if ((value > 2047 || value < -2048) && errmsg != NULL)
|
||||
if (value > 2047 || value < -2048)
|
||||
*errmsg = _("offset not between -2048 and 2047");
|
||||
return insn | ((value << 4) & 0xfff0);
|
||||
}
|
||||
@ -980,9 +969,9 @@ insert_des (unsigned long insn,
|
||||
int dialect ATTRIBUTE_UNUSED,
|
||||
const char **errmsg)
|
||||
{
|
||||
if ((value > 8191 || value < -8192) && errmsg != NULL)
|
||||
if (value > 8191 || value < -8192)
|
||||
*errmsg = _("offset not between -8192 and 8191");
|
||||
else if ((value & 3) != 0 && errmsg != NULL)
|
||||
else if ((value & 3) != 0)
|
||||
*errmsg = _("offset not a multiple of 4");
|
||||
return insn | ((value << 2) & 0xfff0);
|
||||
}
|
||||
@ -1019,8 +1008,7 @@ insert_fxm (unsigned long insn,
|
||||
/* Any other value on mfcr is an error. */
|
||||
else if ((insn & (0x3ff << 1)) == 19 << 1)
|
||||
{
|
||||
if (errmsg != NULL)
|
||||
*errmsg = _("ignoring invalid mfcr mask");
|
||||
*errmsg = _("ignoring invalid mfcr mask");
|
||||
value = 0;
|
||||
}
|
||||
|
||||
@ -1038,14 +1026,11 @@ extract_fxm (unsigned long insn,
|
||||
if ((insn & (1 << 20)) != 0)
|
||||
{
|
||||
if ((dialect & PPC_OPCODE_POWER4) == 0)
|
||||
{
|
||||
if (invalid != NULL)
|
||||
*invalid = 1;
|
||||
}
|
||||
*invalid = 1;
|
||||
else
|
||||
{
|
||||
/* Exactly one bit of MASK should be set. */
|
||||
if ((mask == 0 || (mask & -mask) != mask) && invalid != NULL)
|
||||
if (mask == 0 || (mask & -mask) != mask)
|
||||
*invalid = 1;
|
||||
}
|
||||
}
|
||||
@ -1053,7 +1038,7 @@ extract_fxm (unsigned long insn,
|
||||
/* Check that non-power4 form of mfcr has a zero MASK. */
|
||||
else if ((insn & (0x3ff << 1)) == 19 << 1)
|
||||
{
|
||||
if (mask != 0 && invalid != NULL)
|
||||
if (mask != 0)
|
||||
*invalid = 1;
|
||||
}
|
||||
|
||||
@ -1070,7 +1055,7 @@ insert_li (unsigned long insn,
|
||||
int dialect ATTRIBUTE_UNUSED,
|
||||
const char **errmsg)
|
||||
{
|
||||
if ((value & 3) != 0 && errmsg != NULL)
|
||||
if ((value & 3) != 0)
|
||||
*errmsg = _("ignoring least significant bits in branch offset");
|
||||
return insn | (value & 0x3fffffc);
|
||||
}
|
||||
@ -1102,8 +1087,7 @@ insert_mbe (unsigned long insn,
|
||||
|
||||
if (uval == 0)
|
||||
{
|
||||
if (errmsg != NULL)
|
||||
*errmsg = _("illegal bitmask");
|
||||
*errmsg = _("illegal bitmask");
|
||||
return insn;
|
||||
}
|
||||
|
||||
@ -1138,10 +1122,7 @@ insert_mbe (unsigned long insn,
|
||||
me = 32;
|
||||
|
||||
if (count != 2 && (count != 0 || ! last))
|
||||
{
|
||||
if (errmsg != NULL)
|
||||
*errmsg = _("illegal bitmask");
|
||||
}
|
||||
*errmsg = _("illegal bitmask");
|
||||
|
||||
return insn | (mb << 6) | ((me - 1) << 1);
|
||||
}
|
||||
@ -1155,8 +1136,7 @@ extract_mbe (unsigned long insn,
|
||||
int mb, me;
|
||||
int i;
|
||||
|
||||
if (invalid != NULL)
|
||||
*invalid = 1;
|
||||
*invalid = 1;
|
||||
|
||||
mb = (insn >> 6) & 0x1f;
|
||||
me = (insn >> 1) & 0x1f;
|
||||
@ -1167,12 +1147,12 @@ extract_mbe (unsigned long insn,
|
||||
ret |= 1 << (31 - i);
|
||||
}
|
||||
else if (mb == me + 1)
|
||||
ret = -1;
|
||||
ret = ~0;
|
||||
else /* (mb > me + 1) */
|
||||
{
|
||||
ret = ~0;
|
||||
for (i = me + 1; i < mb; i++)
|
||||
ret &= ~ (1 << (31 - i));
|
||||
ret &= ~(1 << (31 - i));
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
@ -1249,8 +1229,7 @@ extract_nsi (unsigned long insn,
|
||||
int dialect ATTRIBUTE_UNUSED,
|
||||
int *invalid)
|
||||
{
|
||||
if (invalid != NULL)
|
||||
*invalid = 1;
|
||||
*invalid = 1;
|
||||
return -(((insn & 0xffff) ^ 0x8000) - 0x8000);
|
||||
}
|
||||
|
||||
@ -1284,8 +1263,8 @@ insert_ram (unsigned long insn,
|
||||
return insn | ((value & 0x1f) << 16);
|
||||
}
|
||||
|
||||
/* The RA field in the DQ form lq instruction, which has special
|
||||
value restrictions. */
|
||||
/* The RA field in the DQ form lq instruction, which has special
|
||||
value restrictions. */
|
||||
|
||||
/*ARGSUSED*/
|
||||
static unsigned long
|
||||
@ -1296,7 +1275,7 @@ insert_raq (unsigned long insn,
|
||||
{
|
||||
long rtvalue = (insn & RT_MASK) >> 21;
|
||||
|
||||
if (value == rtvalue && errmsg != NULL)
|
||||
if (value == rtvalue)
|
||||
*errmsg = _("source and target register operands must be different");
|
||||
return insn | ((value & 0x1f) << 16);
|
||||
}
|
||||
@ -1337,14 +1316,13 @@ extract_rbs (unsigned long insn,
|
||||
int dialect ATTRIBUTE_UNUSED,
|
||||
int *invalid)
|
||||
{
|
||||
if (invalid != NULL
|
||||
&& ((insn >> 21) & 0x1f) != ((insn >> 11) & 0x1f))
|
||||
if (((insn >> 21) & 0x1f) != ((insn >> 11) & 0x1f))
|
||||
*invalid = 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* The RT field of the DQ form lq instruction, which has special
|
||||
value restrictions. */
|
||||
/* The RT field of the DQ form lq instruction, which has special
|
||||
value restrictions. */
|
||||
|
||||
/*ARGSUSED*/
|
||||
static unsigned long
|
||||
@ -1353,13 +1331,13 @@ insert_rtq (unsigned long insn,
|
||||
int dialect ATTRIBUTE_UNUSED,
|
||||
const char **errmsg)
|
||||
{
|
||||
if ((value & 1) != 0 && errmsg != NULL)
|
||||
if ((value & 1) != 0)
|
||||
*errmsg = _("target register operand must be even");
|
||||
return insn | ((value & 0x1f) << 21);
|
||||
}
|
||||
|
||||
/* The RS field of the DS form stq instruction, which has special
|
||||
value restrictions. */
|
||||
/* The RS field of the DS form stq instruction, which has special
|
||||
value restrictions. */
|
||||
|
||||
/*ARGSUSED*/
|
||||
static unsigned long
|
||||
@ -1368,7 +1346,7 @@ insert_rsq (unsigned long insn,
|
||||
int dialect ATTRIBUTE_UNUSED,
|
||||
const char **errmsg)
|
||||
{
|
||||
if ((value & 1) != 0 && errmsg != NULL)
|
||||
if ((value & 1) != 0)
|
||||
*errmsg = _("source register operand must be even");
|
||||
return insn | ((value & 0x1f) << 21);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user