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authorAlan Modra <amodra@gmail.com>2002-11-30 08:39:46 +0000
committerAlan Modra <amodra@gmail.com>2002-11-30 08:39:46 +0000
commitb34976b65aea8f33690229600bbf4527ec3118e1 (patch)
tree6411348664ef81ca2aa2e3ff325116e6e6502edf /opcodes/arm-dis.c
parent583d52d728c60410c0d39bae68ee536a7b9e7a6c (diff)
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s/boolean/bfd_boolean/ s/true/TRUE/ s/false/FALSE/. Simplify
comparisons of bfd_boolean vars with TRUE/FALSE. Formatting.
Diffstat (limited to 'opcodes/arm-dis.c')
-rw-r--r--opcodes/arm-dis.c177
1 files changed, 91 insertions, 86 deletions
diff --git a/opcodes/arm-dis.c b/opcodes/arm-dis.c
index f3785f2..ff351d0 100644
--- a/opcodes/arm-dis.c
+++ b/opcodes/arm-dis.c
@@ -4,17 +4,17 @@
Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
Modification by James G. Smith (jsmith@cygnus.co.uk)
-This file is part of libopcodes.
+This file is part of libopcodes.
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your option)
-any later version.
+any later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-more details.
+more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
@@ -79,20 +79,25 @@ static unsigned int regname_selected = 1;
#define NUM_ARM_REGNAMES NUM_ELEM (regnames)
#define arm_regnames regnames[regname_selected].reg_names
-static boolean force_thumb = false;
+static bfd_boolean force_thumb = FALSE;
static char * arm_fp_const[] =
{"0.0", "1.0", "2.0", "3.0", "4.0", "5.0", "0.5", "10.0"};
-static char * arm_shift[] =
+static char * arm_shift[] =
{"lsl", "lsr", "asr", "ror"};
/* Forward declarations. */
-static void arm_decode_shift PARAMS ((long, fprintf_ftype, void *));
-static int print_insn_arm PARAMS ((bfd_vma, struct disassemble_info *, long));
-static int print_insn_thumb PARAMS ((bfd_vma, struct disassemble_info *, long));
-static void parse_disassembler_options PARAMS ((char *));
-static int print_insn PARAMS ((bfd_vma, struct disassemble_info *, boolean));
+static void arm_decode_shift
+ PARAMS ((long, fprintf_ftype, void *));
+static int print_insn_arm
+ PARAMS ((bfd_vma, struct disassemble_info *, long));
+static int print_insn_thumb
+ PARAMS ((bfd_vma, struct disassemble_info *, long));
+static void parse_disassembler_options
+ PARAMS ((char *));
+static int print_insn
+ PARAMS ((bfd_vma, struct disassemble_info *, bfd_boolean));
int get_arm_regname_num_options (void);
int set_arm_regname_option (int option);
int get_arm_regnames (int option, const char **setname,
@@ -135,14 +140,14 @@ arm_decode_shift (given, func, stream)
void * stream;
{
func (stream, "%s", arm_regnames[given & 0xf]);
-
+
if ((given & 0xff0) != 0)
{
if ((given & 0x10) == 0)
{
int amount = (given & 0xf80) >> 7;
int shift = (given & 0x60) >> 5;
-
+
if (amount == 0)
{
if (shift == 3)
@@ -150,10 +155,10 @@ arm_decode_shift (given, func, stream)
func (stream, ", rrx");
return;
}
-
+
amount = 32;
}
-
+
func (stream, ", %s #%d", arm_shift[shift], amount);
}
else
@@ -180,7 +185,7 @@ print_insn_arm (pc, info, given)
if ((given & insn->mask) == insn->value)
{
char * c;
-
+
for (c = insn->assembler; *c; c++)
{
if (*c == '%')
@@ -196,14 +201,14 @@ print_insn_arm (pc, info, given)
&& ((given & 0x02000000) == 0))
{
int offset = given & 0xfff;
-
+
func (stream, "[pc");
-
+
if (given & 0x01000000)
{
if ((given & 0x00800000) == 0)
offset = - offset;
-
+
/* Pre-indexed. */
func (stream, ", #%d]", offset);
@@ -224,13 +229,13 @@ print_insn_arm (pc, info, given)
/* ie ignore the offset. */
offset = pc + 8;
}
-
+
func (stream, "\t; ");
info->print_address_func (offset, info);
}
else
{
- func (stream, "[%s",
+ func (stream, "[%s",
arm_regnames[(given >> 16) & 0xf]);
if ((given & 0x01000000) != 0)
{
@@ -250,7 +255,7 @@ print_insn_arm (pc, info, given)
arm_decode_shift (given, func, stream);
}
- func (stream, "]%s",
+ func (stream, "]%s",
((given & 0x00200000) != 0) ? "!" : "");
}
else
@@ -262,13 +267,13 @@ print_insn_arm (pc, info, given)
func (stream, "], %s#%d",
(((given & 0x00800000) == 0)
? "-" : ""), offset);
- else
+ else
func (stream, "]");
}
else
{
func (stream, "], %s",
- (((given & 0x00800000) == 0)
+ (((given & 0x00800000) == 0)
? "-" : ""));
arm_decode_shift (given, func, stream);
}
@@ -281,18 +286,18 @@ print_insn_arm (pc, info, given)
{
/* PC relative with immediate offset. */
int offset = ((given & 0xf00) >> 4) | (given & 0xf);
-
+
if ((given & 0x00800000) == 0)
offset = -offset;
-
+
func (stream, "[pc, #%d]\t; ", offset);
-
+
(*info->print_address_func)
(offset + pc + 8, info);
}
else
{
- func (stream, "[%s",
+ func (stream, "[%s",
arm_regnames[(given >> 16) & 0xf]);
if ((given & 0x01000000) != 0)
{
@@ -315,7 +320,7 @@ print_insn_arm (pc, info, given)
arm_regnames[given & 0xf]);
}
- func (stream, "]%s",
+ func (stream, "]%s",
((given & 0x00200000) != 0) ? "!" : "");
}
else
@@ -329,7 +334,7 @@ print_insn_arm (pc, info, given)
func (stream, "], %s#%d",
(((given & 0x00800000) == 0)
? "-" : ""), offset);
- else
+ else
func (stream, "]");
}
else
@@ -343,7 +348,7 @@ print_insn_arm (pc, info, given)
}
}
break;
-
+
case 'b':
(*info->print_address_func)
(BDISP (given) * 4 + pc + 8, info);
@@ -425,7 +430,7 @@ print_insn_arm (pc, info, given)
{
bfd_vma address;
bfd_vma offset = 0;
-
+
if (given & 0x00800000)
/* Is signed, hi bits should be ones. */
offset = (-1) ^ 0x00ffffff;
@@ -434,7 +439,7 @@ print_insn_arm (pc, info, given)
offset += given & 0x00ffffff;
offset <<= 2;
address = offset + pc + 8;
-
+
if (given & 0x01000000)
/* H bit allows addressing to 2-byte boundaries. */
address += 2;
@@ -490,7 +495,7 @@ print_insn_arm (pc, info, given)
func (stream, "3");
}
break;
-
+
case 'P':
switch (given & 0x00080080)
{
@@ -542,7 +547,7 @@ print_insn_arm (pc, info, given)
}
break;
- case '0': case '1': case '2': case '3': case '4':
+ case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
{
int bitstart = *c++ - '0';
@@ -554,44 +559,44 @@ print_insn_arm (pc, info, given)
{
case '-':
c++;
-
+
while (*c >= '0' && *c <= '9')
bitend = (bitend * 10) + *c++ - '0';
-
+
if (!bitend)
abort ();
-
+
switch (*c)
{
case 'r':
{
long reg;
-
+
reg = given >> bitstart;
reg &= (2 << (bitend - bitstart)) - 1;
-
+
func (stream, "%s", arm_regnames[reg]);
}
break;
case 'd':
{
long reg;
-
+
reg = given >> bitstart;
reg &= (2 << (bitend - bitstart)) - 1;
-
+
func (stream, "%d", reg);
}
break;
case 'x':
{
long reg;
-
+
reg = given >> bitstart;
reg &= (2 << (bitend - bitstart)) - 1;
-
+
func (stream, "0x%08x", reg);
-
+
/* Some SWI instructions have special
meanings. */
if ((given & 0x0fffffff) == 0x0FF00000)
@@ -603,20 +608,20 @@ print_insn_arm (pc, info, given)
case 'X':
{
long reg;
-
+
reg = given >> bitstart;
reg &= (2 << (bitend - bitstart)) - 1;
-
+
func (stream, "%01x", reg & 0xf);
}
break;
case 'f':
{
long reg;
-
+
reg = given >> bitstart;
reg &= (2 << (bitend - bitstart)) - 1;
-
+
if (reg > 7)
func (stream, "#%s",
arm_fp_const[reg & 7]);
@@ -677,7 +682,7 @@ print_insn_arm (pc, info, given)
}
break;
-
+
default:
abort ();
}
@@ -766,7 +771,7 @@ print_insn_thumb (pc, info, given)
if (!*c) /* Check for empty (not NULL) assembler string. */
{
long offset;
-
+
info->bytes_per_chunk = 4;
info->bytes_per_line = 4;
@@ -788,16 +793,16 @@ print_insn_thumb (pc, info, given)
{
info->bytes_per_chunk = 2;
info->bytes_per_line = 4;
-
+
given &= 0xffff;
-
+
for (; *c; c++)
{
if (*c == '%')
{
int domaskpc = 0;
int domasklr = 0;
-
+
switch (*++c)
{
case '%':
@@ -807,11 +812,11 @@ print_insn_thumb (pc, info, given)
case 'S':
{
long reg;
-
+
reg = (given >> 3) & 0x7;
if (given & (1 << 6))
reg += 8;
-
+
func (stream, "%s", arm_regnames[reg]);
}
break;
@@ -819,11 +824,11 @@ print_insn_thumb (pc, info, given)
case 'D':
{
long reg;
-
+
reg = given & 0x7;
if (given & (1 << 7))
reg += 8;
-
+
func (stream, "%s", arm_regnames[reg]);
}
break;
@@ -845,9 +850,9 @@ print_insn_thumb (pc, info, given)
{
int started = 0;
int reg;
-
+
func (stream, "{");
-
+
/* It would be nice if we could spot
ranges, and generate the rS-rE format: */
for (reg = 0; (reg < 8); reg++)
@@ -879,12 +884,12 @@ print_insn_thumb (pc, info, given)
break;
- case '0': case '1': case '2': case '3': case '4':
+ case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
{
int bitstart = *c++ - '0';
int bitend = 0;
-
+
while (*c >= '0' && *c <= '9')
bitstart = (bitstart * 10) + *c++ - '0';
@@ -893,7 +898,7 @@ print_insn_thumb (pc, info, given)
case '-':
{
long reg;
-
+
c++;
while (*c >= '0' && *c <= '9')
bitend = (bitend * 10) + *c++ - '0';
@@ -992,11 +997,11 @@ parse_arm_disassembler_option (option)
{
if (option == NULL)
return;
-
+
if (strneq (option, "reg-names-", 10))
{
int i;
-
+
option += 10;
for (i = NUM_ARM_REGNAMES; i--;)
@@ -1005,7 +1010,7 @@ parse_arm_disassembler_option (option)
regname_selected = i;
break;
}
-
+
if (i < 0)
fprintf (stderr, _("Unrecognised register name set: %s\n"), option);
}
@@ -1015,7 +1020,7 @@ parse_arm_disassembler_option (option)
force_thumb = 0;
else
fprintf (stderr, _("Unrecognised disassembler option: %s\n"), option);
-
+
return;
}
@@ -1026,7 +1031,7 @@ parse_disassembler_options (options)
char * options;
{
char * space;
-
+
if (options == NULL)
return;
@@ -1054,7 +1059,7 @@ static int
print_insn (pc, info, little)
bfd_vma pc;
struct disassemble_info * info;
- boolean little;
+ bfd_boolean little;
{
unsigned char b[4];
long given;
@@ -1064,19 +1069,19 @@ print_insn (pc, info, little)
if (info->disassembler_options)
{
parse_disassembler_options (info->disassembler_options);
-
+
/* To avoid repeated parsing of these options, we remove them here. */
info->disassembler_options = NULL;
}
-
+
is_thumb = force_thumb;
-
+
if (!is_thumb && info->symbols != NULL)
{
if (bfd_asymbol_flavour (*info->symbols) == bfd_target_coff_flavour)
{
coff_symbol_type * cs;
-
+
cs = coffsymbol (*info->symbols);
is_thumb = ( cs->native->u.syment.n_sclass == C_THUMBEXT
|| cs->native->u.syment.n_sclass == C_THUMBSTAT
@@ -1088,14 +1093,14 @@ print_insn (pc, info, little)
{
elf_symbol_type * es;
unsigned int type;
-
+
es = *(elf_symbol_type **)(info->symbols);
type = ELF_ST_TYPE (es->internal_elf_sym.st_info);
-
+
is_thumb = (type == STT_ARM_TFUNC) || (type == STT_ARM_16BIT);
}
}
-
+
info->bytes_per_chunk = 4;
info->display_endian = little ? BFD_ENDIAN_LITTLE : BFD_ENDIAN_BIG;
@@ -1105,17 +1110,17 @@ print_insn (pc, info, little)
if (status != 0 && is_thumb)
{
info->bytes_per_chunk = 2;
-
+
status = info->read_memory_func (pc, (bfd_byte *) b, 2, info);
b[3] = b[2] = 0;
}
-
+
if (status != 0)
{
info->memory_error_func (status, pc, info);
return -1;
}
-
+
given = (b[0]) | (b[1] << 8) | (b[2] << 16) | (b[3] << 24);
}
else
@@ -1127,13 +1132,13 @@ print_insn (pc, info, little)
info->memory_error_func (status, pc, info);
return -1;
}
-
+
if (is_thumb)
{
if (pc & 0x2)
{
given = (b[2] << 8) | b[3];
-
+
status = info->read_memory_func
((pc + 4) & ~ 0x3, (bfd_byte *) b, 4, info);
if (status != 0)
@@ -1141,7 +1146,7 @@ print_insn (pc, info, little)
info->memory_error_func (status, pc + 4, info);
return -1;
}
-
+
given |= (b[0] << 24) | (b[1] << 16);
}
else
@@ -1150,7 +1155,7 @@ print_insn (pc, info, little)
else
given = (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | (b[3]);
}
-
+
if (info->flags & INSN_HAS_RELOC)
/* If the instruction has a reloc associated with it, then
the offset field in the instruction will actually be the
@@ -1158,7 +1163,7 @@ print_insn (pc, info, little)
In such cases, we can ignore the pc when computing
addresses, since the addend is not currently pc-relative. */
pc = 0;
-
+
if (is_thumb)
status = print_insn_thumb (pc, info, given);
else
@@ -1172,7 +1177,7 @@ print_insn_big_arm (pc, info)
bfd_vma pc;
struct disassemble_info * info;
{
- return print_insn (pc, info, false);
+ return print_insn (pc, info, FALSE);
}
int
@@ -1180,7 +1185,7 @@ print_insn_little_arm (pc, info)
bfd_vma pc;
struct disassemble_info * info;
{
- return print_insn (pc, info, true);
+ return print_insn (pc, info, TRUE);
}
void
@@ -1191,7 +1196,7 @@ print_arm_disassembler_options (FILE * stream)
fprintf (stream, _("\n\
The following ARM specific disassembler options are supported for use with\n\
the -M switch:\n"));
-
+
for (i = NUM_ARM_REGNAMES; i--;)
fprintf (stream, " reg-names-%s %*c%s\n",
regnames[i].name,