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Re-instated Guile/Scheme support.

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This commit is contained in:
Ludovic Courtès 2007-08-09 23:01:17 +00:00
parent 57da77961a
commit d4310edb35
8 changed files with 1690 additions and 0 deletions
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6
gdb/ChangeLog
View file

@ -1,5 +1,11 @@
2007-08-10 Ludovic Courtès <ludo@gnu.org>
* Makefile.in (SFILES): Add scm-{exp,lang,valprint}.c.
(scm_lang_h, scm_tags_h): New.
(COMMON_OBS): Add scm-{exp,lang,valprint}.o.
(scm-exp.o, scm-lang.o, scm-valprint.o): New targets.
* defs.h (enum language): Add `language_scm'.
* MAINTAINERS: Add Emacs local variables to use UTF-8 upon
opening.

13
gdb/Makefile.in
View file

@ -555,6 +555,7 @@ SFILES = ada-exp.y ada-lang.c ada-typeprint.c ada-valprint.c \
p-exp.y p-lang.c p-typeprint.c p-valprint.c parse.c printcmd.c \
prologue-value.c \
regcache.c reggroups.c remote.c remote-fileio.c \
scm-exp.c scm-lang.c scm-valprint.c \
sentinel-frame.c \
serial.c ser-base.c ser-unix.c \
solib.c solib-null.c source.c \
@ -787,6 +788,8 @@ remote_fileio_h = remote-fileio.h
remote_h = remote.h
rs6000_tdep_h = rs6000-tdep.h $(defs_h)
s390_tdep_h = s390-tdep.h
scm_lang_h = scm-lang.h $(scm_tags_h)
scm_tags_h = scm-tags.h
score_tdep_h = score-tdep.h
sentinel_frame_h = sentinel-frame.h
serial_h = serial.h
@ -958,6 +961,7 @@ COMMON_OBS = $(DEPFILES) $(CONFIG_OBS) $(YYOBJ) \
varobj.o vec.o wrapper.o \
jv-lang.o jv-valprint.o jv-typeprint.o \
m2-lang.o p-lang.o p-typeprint.o p-valprint.o \
scm-exp.o scm-lang.o scm-valprint.o \
sentinel-frame.o \
complaints.o typeprint.o \
ada-typeprint.o c-typeprint.o f-typeprint.o m2-typeprint.o \
@ -2534,6 +2538,15 @@ s390-tdep.o: s390-tdep.c $(defs_h) $(arch_utils_h) $(frame_h) $(inferior_h) \
$(frame_unwind_h) $(dwarf2_frame_h) $(reggroups_h) $(regset_h) \
$(value_h) $(gdb_assert_h) $(dis_asm_h) $(solib_svr4_h) \
$(prologue_value_h) $(s390_tdep_h)
scm-exp.o: scm-exp.c $(defs_h) $(symtab_h) $(gdbtypes_h) $(expression_h) \
$(parser_defs_h) $(language_h) $(value_h) $(c_lang_h) $(scm_lang_h) \
$(scm_tags_h)
scm-lang.o: scm-lang.c $(defs_h) $(symtab_h) $(gdbtypes_h) $(expression_h) \
$(parser_defs_h) $(language_h) $(value_h) $(c_lang_h) $(scm_lang_h) \
$(scm_tags_h) $(source_h) $(gdb_string_h) $(gdbcore_h) $(infcall_h)
scm-valprint.o: scm-valprint.c $(defs_h) $(symtab_h) $(gdbtypes_h) \
$(expression_h) $(parser_defs_h) $(language_h) $(value_h) \
$(scm_lang_h) $(valprint_h) $(gdbcore_h) $(c_lang_h)
score-tdep.o: score-tdep.c $(defs_h) $(gdb_assert_h) $(inferior_h) \
$(symtab_h) $(objfiles_h) $(gdbcore_h) $(target_h) \
$(arch_utils_h) $(regcache_h) $(dis_asm_h) $(frame_unwind_h) \

1
gdb/defs.h
View file

@ -212,6 +212,7 @@ enum language
language_asm, /* Assembly language */
language_pascal, /* Pascal */
language_ada, /* Ada */
language_scm, /* Guile Scheme */
language_minimal, /* All other languages, minimal support only */
nr_languages
};

497
gdb/scm-exp.c Normal file
View file

@ -0,0 +1,497 @@
/* Scheme/Guile language support routines for GDB, the GNU debugger.
Copyright (C) 1995, 1996, 2000, 2003, 2005 Free Software Foundation,
Inc.
This file is part of GDB.
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.
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.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
#include "defs.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "parser-defs.h"
#include "language.h"
#include "value.h"
#include "c-lang.h"
#include "scm-lang.h"
#include "scm-tags.h"
#define USE_EXPRSTRING 0
static void scm_lreadparen (int);
static int scm_skip_ws (void);
static void scm_read_token (int, int);
static LONGEST scm_istring2number (char *, int, int);
static LONGEST scm_istr2int (char *, int, int);
static void scm_lreadr (int);
static LONGEST
scm_istr2int (char *str, int len, int radix)
{
int i = 0;
LONGEST inum = 0;
int c;
int sign = 0;
if (0 >= len)
return SCM_BOOL_F; /* zero scm_length */
switch (str[0])
{ /* leading sign */
case '-':
case '+':
sign = str[0];
if (++i == len)
return SCM_BOOL_F; /* bad if lone `+' or `-' */
}
do
{
switch (c = str[i++])
{
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
c = c - '0';
goto accumulate;
case 'A':
case 'B':
case 'C':
case 'D':
case 'E':
case 'F':
c = c - 'A' + 10;
goto accumulate;
case 'a':
case 'b':
case 'c':
case 'd':
case 'e':
case 'f':
c = c - 'a' + 10;
accumulate:
if (c >= radix)
return SCM_BOOL_F; /* bad digit for radix */
inum *= radix;
inum += c;
break;
default:
return SCM_BOOL_F; /* not a digit */
}
}
while (i < len);
if (sign == '-')
inum = -inum;
return SCM_MAKINUM (inum);
}
static LONGEST
scm_istring2number (char *str, int len, int radix)
{
int i = 0;
char ex = 0;
char ex_p = 0, rx_p = 0; /* Only allow 1 exactness and 1 radix prefix */
#if 0
SCM res;
#endif
if (len == 1)
if (*str == '+' || *str == '-') /* Catches lone `+' and `-' for speed */
return SCM_BOOL_F;
while ((len - i) >= 2 && str[i] == '#' && ++i)
switch (str[i++])
{
case 'b':
case 'B':
if (rx_p++)
return SCM_BOOL_F;
radix = 2;
break;
case 'o':
case 'O':
if (rx_p++)
return SCM_BOOL_F;
radix = 8;
break;
case 'd':
case 'D':
if (rx_p++)
return SCM_BOOL_F;
radix = 10;
break;
case 'x':
case 'X':
if (rx_p++)
return SCM_BOOL_F;
radix = 16;
break;
case 'i':
case 'I':
if (ex_p++)
return SCM_BOOL_F;
ex = 2;
break;
case 'e':
case 'E':
if (ex_p++)
return SCM_BOOL_F;
ex = 1;
break;
default:
return SCM_BOOL_F;
}
switch (ex)
{
case 1:
return scm_istr2int (&str[i], len - i, radix);
case 0:
return scm_istr2int (&str[i], len - i, radix);
#if 0
if NFALSEP
(res) return res;
#ifdef FLOATS
case 2:
return scm_istr2flo (&str[i], len - i, radix);
#endif
#endif
}
return SCM_BOOL_F;
}
static void
scm_read_token (int c, int weird)
{
while (1)
{
c = *lexptr++;
switch (c)
{
case '[':
case ']':
case '(':
case ')':
case '\"':
case ';':
case ' ':
case '\t':
case '\r':
case '\f':
case '\n':
if (weird)
goto default_case;
case '\0': /* End of line */
eof_case:
--lexptr;
return;
case '\\':
if (!weird)
goto default_case;
else
{
c = *lexptr++;
if (c == '\0')
goto eof_case;
else
goto default_case;
}
case '}':
if (!weird)
goto default_case;
c = *lexptr++;
if (c == '#')
return;
else
{
--lexptr;
c = '}';
goto default_case;
}
default:
default_case:
;
}
}
}
static int
scm_skip_ws (void)
{
int c;
while (1)
switch ((c = *lexptr++))
{
case '\0':
goteof:
return c;
case ';':
lp:
switch ((c = *lexptr++))
{
case '\0':
goto goteof;
default:
goto lp;
case '\n':
break;
}
case ' ':
case '\t':
case '\r':
case '\f':
case '\n':
break;
default:
return c;
}
}
static void
scm_lreadparen (int skipping)
{
for (;;)
{
int c = scm_skip_ws ();
if (')' == c || ']' == c)
return;
--lexptr;
if (c == '\0')
error ("missing close paren");
scm_lreadr (skipping);
}
}
static void
scm_lreadr (int skipping)
{
int c, j;
struct stoken str;
LONGEST svalue = 0;
tryagain:
c = *lexptr++;
switch (c)
{
case '\0':
lexptr--;
return;
case '[':
case '(':
scm_lreadparen (skipping);
return;
case ']':
case ')':
error ("unexpected #\\%c", c);
goto tryagain;
case '\'':
case '`':
str.ptr = lexptr - 1;
scm_lreadr (skipping);
if (!skipping)
{
struct value *val = scm_evaluate_string (str.ptr, lexptr - str.ptr);
if (!is_scmvalue_type (value_type (val)))
error ("quoted scm form yields non-SCM value");
svalue = extract_signed_integer (value_contents (val),
TYPE_LENGTH (value_type (val)));
goto handle_immediate;
}
return;
case ',':
c = *lexptr++;
if ('@' != c)
lexptr--;
scm_lreadr (skipping);
return;
case '#':
c = *lexptr++;
switch (c)
{
case '[':
case '(':
scm_lreadparen (skipping);
return;
case 't':
case 'T':
svalue = SCM_BOOL_T;
goto handle_immediate;
case 'f':
case 'F':
svalue = SCM_BOOL_F;
goto handle_immediate;
case 'b':
case 'B':
case 'o':
case 'O':
case 'd':
case 'D':
case 'x':
case 'X':
case 'i':
case 'I':
case 'e':
case 'E':
lexptr--;
c = '#';
goto num;
case '*': /* bitvector */
scm_read_token (c, 0);
return;
case '{':
scm_read_token (c, 1);
return;
case '\\': /* character */
c = *lexptr++;
scm_read_token (c, 0);
return;
case '|':
j = 1; /* here j is the comment nesting depth */
lp:
c = *lexptr++;
lpc:
switch (c)
{
case '\0':
error ("unbalanced comment");
default:
goto lp;
case '|':
if ('#' != (c = *lexptr++))
goto lpc;
if (--j)
goto lp;
break;
case '#':
if ('|' != (c = *lexptr++))
goto lpc;
++j;
goto lp;
}
goto tryagain;
case '.':
default:
#if 0
callshrp:
#endif
scm_lreadr (skipping);
return;
}
case '\"':
while ('\"' != (c = *lexptr++))
{
if (c == '\\')
switch (c = *lexptr++)
{
case '\0':
error ("non-terminated string literal");
case '\n':
continue;
case '0':
case 'f':
case 'n':
case 'r':
case 't':
case 'a':
case 'v':
break;
}
}
return;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case '.':
case '-':
case '+':
num:
{
str.ptr = lexptr - 1;
scm_read_token (c, 0);
if (!skipping)
{
svalue = scm_istring2number (str.ptr, lexptr - str.ptr, 10);
if (svalue != SCM_BOOL_F)
goto handle_immediate;
goto tok;
}
}
return;
case ':':
scm_read_token ('-', 0);
return;
#if 0
do_symbol:
#endif
default:
str.ptr = lexptr - 1;
scm_read_token (c, 0);
tok:
if (!skipping)
{
str.length = lexptr - str.ptr;
if (str.ptr[0] == '$')
{
write_dollar_variable (str);
return;
}
write_exp_elt_opcode (OP_NAME);
write_exp_string (str);
write_exp_elt_opcode (OP_NAME);
}
return;
}
handle_immediate:
if (!skipping)
{
write_exp_elt_opcode (OP_LONG);
write_exp_elt_type (builtin_type_scm);
write_exp_elt_longcst (svalue);
write_exp_elt_opcode (OP_LONG);
}
}
int
scm_parse (void)
{
char *start;
while (*lexptr == ' ')
lexptr++;
start = lexptr;
scm_lreadr (USE_EXPRSTRING);
#if USE_EXPRSTRING
str.length = lexptr - start;
str.ptr = start;
write_exp_elt_opcode (OP_EXPRSTRING);
write_exp_string (str);
write_exp_elt_opcode (OP_EXPRSTRING);
#endif
return 0;
}

283
gdb/scm-lang.c Normal file
View file

@ -0,0 +1,283 @@
/* Scheme/Guile language support routines for GDB, the GNU debugger.
Copyright (C) 1995, 1996, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2007 Free
Software Foundation, Inc.
This file is part of GDB.
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.
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.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
#include "defs.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "parser-defs.h"
#include "language.h"
#include "value.h"
#include "c-lang.h"
#include "scm-lang.h"
#include "scm-tags.h"
#include "source.h"
#include "gdb_string.h"
#include "gdbcore.h"
#include "infcall.h"
extern void _initialize_scheme_language (void);
static struct value *evaluate_subexp_scm (struct type *, struct expression *,
int *, enum noside);
static struct value *scm_lookup_name (char *);
static int in_eval_c (void);
struct type *builtin_type_scm;
void
scm_printchar (int c, struct ui_file *stream)
{
fprintf_filtered (stream, "#\\%c", c);
}
static void
scm_printstr (struct ui_file *stream, const gdb_byte *string,
unsigned int length, int width, int force_ellipses)
{
fprintf_filtered (stream, "\"%s\"", string);
}
int
is_scmvalue_type (struct type *type)
{
if (TYPE_NAME (type) && strcmp (TYPE_NAME (type), "SCM") == 0)
{
return 1;
}
return 0;
}
/* Get the INDEX'th SCM value, assuming SVALUE is the address
of the 0'th one. */
LONGEST
scm_get_field (LONGEST svalue, int index)
{
gdb_byte buffer[20];
read_memory (SCM2PTR (svalue) + index * TYPE_LENGTH (builtin_type_scm),
buffer, TYPE_LENGTH (builtin_type_scm));
return extract_signed_integer (buffer, TYPE_LENGTH (builtin_type_scm));
}
/* Unpack a value of type TYPE in buffer VALADDR as an integer
(if CONTEXT == TYPE_CODE_IN), a pointer (CONTEXT == TYPE_CODE_PTR),
or Boolean (CONTEXT == TYPE_CODE_BOOL). */
LONGEST
scm_unpack (struct type *type, const gdb_byte *valaddr, enum type_code context)
{
if (is_scmvalue_type (type))
{
LONGEST svalue = extract_signed_integer (valaddr, TYPE_LENGTH (type));
if (context == TYPE_CODE_BOOL)
{
if (svalue == SCM_BOOL_F)
return 0;
else
return 1;
}
switch (7 & (int) svalue)
{
case 2:
case 6: /* fixnum */
return svalue >> 2;
case 4: /* other immediate value */
if (SCM_ICHRP (svalue)) /* character */
return SCM_ICHR (svalue);
else if (SCM_IFLAGP (svalue))
{
switch ((int) svalue)
{
#ifndef SICP
case SCM_EOL:
#endif
case SCM_BOOL_F:
return 0;
case SCM_BOOL_T:
return 1;
}
}
error (_("Value can't be converted to integer."));
default:
return svalue;
}
}
else
return unpack_long (type, valaddr);
}
/* True if we're correctly in Guile's eval.c (the evaluator and apply). */
static int
in_eval_c (void)
{
struct symtab_and_line cursal = get_current_source_symtab_and_line ();
if (cursal.symtab && cursal.symtab->filename)
{
char *filename = cursal.symtab->filename;
int len = strlen (filename);
if (len >= 6 && strcmp (filename + len - 6, "eval.c") == 0)
return 1;
}
return 0;
}
/* Lookup a value for the variable named STR.
First lookup in Scheme context (using the scm_lookup_cstr inferior
function), then try lookup_symbol for compiled variables. */
static struct value *
scm_lookup_name (char *str)
{
struct value *args[3];
int len = strlen (str);
struct value *func;
struct value *val;
struct symbol *sym;
args[0] = value_allocate_space_in_inferior (len);
args[1] = value_from_longest (builtin_type_int, len);
write_memory (value_as_long (args[0]), (gdb_byte *) str, len);
if (in_eval_c ()
&& (sym = lookup_symbol ("env",
expression_context_block,
VAR_DOMAIN, (int *) NULL,
(struct symtab **) NULL)) != NULL)
args[2] = value_of_variable (sym, expression_context_block);
else
/* FIXME in this case, we should try lookup_symbol first */
args[2] = value_from_longest (builtin_type_scm, SCM_EOL);
func = find_function_in_inferior ("scm_lookup_cstr");
val = call_function_by_hand (func, 3, args);
if (!value_logical_not (val))
return value_ind (val);
sym = lookup_symbol (str,
expression_context_block,
VAR_DOMAIN, (int *) NULL,
(struct symtab **) NULL);
if (sym)
return value_of_variable (sym, NULL);
error (_("No symbol \"%s\" in current context."), str);
}
struct value *
scm_evaluate_string (char *str, int len)
{
struct value *func;
struct value *addr = value_allocate_space_in_inferior (len + 1);
LONGEST iaddr = value_as_long (addr);
write_memory (iaddr, (gdb_byte *) str, len);
/* FIXME - should find and pass env */
write_memory (iaddr + len, (gdb_byte *) "", 1);
func = find_function_in_inferior ("scm_evstr");
return call_function_by_hand (func, 1, &addr);
}
static struct value *
evaluate_exp (struct type *expect_type, struct expression *exp,
int *pos, enum noside noside)
{
enum exp_opcode op = exp->elts[*pos].opcode;
int len, pc;
char *str;
switch (op)
{
case OP_NAME:
pc = (*pos)++;
len = longest_to_int (exp->elts[pc + 1].longconst);
(*pos) += 3 + BYTES_TO_EXP_ELEM (len + 1);
if (noside == EVAL_SKIP)
goto nosideret;
str = &exp->elts[pc + 2].string;
return scm_lookup_name (str);
case OP_STRING:
pc = (*pos)++;
len = longest_to_int (exp->elts[pc + 1].longconst);
(*pos) += 3 + BYTES_TO_EXP_ELEM (len + 1);
if (noside == EVAL_SKIP)
goto nosideret;
str = &exp->elts[pc + 2].string;
return scm_evaluate_string (str, len);
default:;
}
return evaluate_subexp_standard (expect_type, exp, pos, noside);
nosideret:
return value_from_longest (builtin_type_long, (LONGEST) 1);
}
const struct exp_descriptor exp_descriptor_scm =
{
print_subexp_standard,
operator_length_standard,
op_name_standard,
dump_subexp_body_standard,
evaluate_exp
};
const struct language_defn scm_language_defn =
{
"scheme", /* Language name */
language_scm,
NULL,
range_check_off,
type_check_off,
case_sensitive_off,
array_row_major,
&exp_descriptor_scm,
scm_parse,
c_error,
null_post_parser,
scm_printchar, /* Print a character constant */
scm_printstr, /* Function to print string constant */
NULL, /* Function to print a single character */
NULL, /* Create fundamental type in this language */
c_print_type, /* Print a type using appropriate syntax */
scm_val_print, /* Print a value using appropriate syntax */
scm_value_print, /* Print a top-level value */
NULL, /* Language specific skip_trampoline */
value_of_this, /* value_of_this */
basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
basic_lookup_transparent_type,/* lookup_transparent_type */
NULL, /* Language specific symbol demangler */
NULL, /* Language specific class_name_from_physname */
NULL, /* expression operators for printing */
1, /* c-style arrays */
0, /* String lower bound */
NULL,
default_word_break_characters,
c_language_arch_info,
default_print_array_index,
LANG_MAGIC
};
void
_initialize_scheme_language (void)
{
add_language (&scm_language_defn);
builtin_type_scm =
init_type (TYPE_CODE_INT,
gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
0, "SCM", (struct objfile *) NULL);
}

72
gdb/scm-lang.h Normal file
View file

@ -0,0 +1,72 @@
/* Scheme/Guile language support routines for GDB, the GNU debugger.
Copyright (C) 1995, 1996, 1998, 1999, 2000, 2003, 2005 Free Software
Foundation, Inc.
This file is part of GDB.
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.
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.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
#define SICP
#include "scm-tags.h"
#undef SCM_NCELLP
#define SCM_NCELLP(x) ((SCM_SIZE-1) & (int)(x))
#define SCM_ITAG8_DATA(X) ((X)>>8)
#define SCM_ICHR(x) ((unsigned char)SCM_ITAG8_DATA(x))
#define SCM_ICHRP(x) (SCM_ITAG8(x) == scm_tc8_char)
#define scm_tc8_char 0xf4
#define SCM_IFLAGP(n) ((0x87 & (int)(n))==4)
#define SCM_ISYMNUM(n) ((int)((n)>>9))
#define SCM_ISYMCHARS(n) (scm_isymnames[SCM_ISYMNUM(n)])
#define SCM_ILOCP(n) ((0xff & (int)(n))==0xfc)
#define SCM_ITAG8(X) ((int)(X) & 0xff)
#define SCM_TYP7(x) (0x7f & (int)SCM_CAR(x))
#define SCM_LENGTH(x) (((unsigned long)SCM_CAR(x))>>8)
#define SCM_NCONSP(x) (1 & (int)SCM_CAR(x))
#define SCM_NECONSP(x) (SCM_NCONSP(x) && (1 != SCM_TYP3(x)))
#define SCM_CAR(x) scm_get_field (x, 0)
#define SCM_CDR(x) scm_get_field (x, 1)
#define SCM_VELTS(x) ((SCM *)SCM_CDR(x))
#define SCM_CLOSCAR(x) (SCM_CAR(x)-scm_tc3_closure)
#define SCM_CODE(x) SCM_CAR(SCM_CLOSCAR (x))
#define SCM_MAKINUM(x) (((x)<<2)+2L)
/* Forward decls for prototypes */
struct value;
extern int scm_value_print (struct value *, struct ui_file *,
int, enum val_prettyprint);
extern int scm_val_print (struct type *, const gdb_byte *, int, CORE_ADDR,
struct ui_file *, int, int, int,
enum val_prettyprint);
extern LONGEST scm_get_field (LONGEST, int);
extern void scm_scmval_print (LONGEST, struct ui_file *, int, int, int,
enum val_prettyprint);
extern int is_scmvalue_type (struct type *);
extern void scm_printchar (int, struct ui_file *);
extern struct value *scm_evaluate_string (char *, int);
extern struct type *builtin_type_scm;
extern int scm_parse (void);
extern LONGEST scm_unpack (struct type *, const gdb_byte *, enum type_code);

380
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/* This is a minimally edited version of Guile's tags.h. */
/* classes: h_files */
#ifndef TAGSH
#define TAGSH
/* Copyright (C) 1995, 1999 Free Software Foundation, Inc.
* 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, or (at your option)
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* As a special exception, the Free Software Foundation gives permission
* for additional uses of the text contained in its release of GUILE.
*
* The exception is that, if you link the GUILE library with other files
* to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the GUILE library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the
* Free Software Foundation under the name GUILE. If you copy
* code from other Free Software Foundation releases into a copy of
* GUILE, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for GUILE, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*/
/** This file defines the format of SCM values and cons pairs.
** It is here that tag bits are assigned for various purposes.
**/
/* Three Bit Tags
* 000 -- a non-immediate value. Points into the pair heap.
*
* 001 -- a gloc (i.e., a resolved global variable in a CAR in a code graph)
* or the CAR of an object handle (i.e., the tagged pointer to the
* vtable part of a user-defined object).
*
* If X has this tag, the value at CDAR(X - 1) distinguishes
* glocs from object handles. The distinction only needs
* to be made in a few places. Only a few parts of the code know
* about glocs. In most cases, when a value in the CAR of a pair
* has the tag 001, it means that the pair is an object handle.
*
* 010 -- the tag for immediate, exact integers.
*
* 011 -- in the CAR of a pair, this tag indicates that the pair is a closure.
* The remaining bits of the CAR are a pointer into the pair heap
* to the code graph for the closure.
*
* 1xy -- an extension tag which means that there is a five or six bit
* tag to the left of the low three bits. See the nice diagrams
* in ../doc/code.doc if you want to know what the bits mean.
*/
#define scm_tc3_cons 0
#define scm_tc3_cons_gloc 1
#define scm_tc3_closure 3
#define scm_tc7_ssymbol 5
#define scm_tc7_msymbol 7
#define scm_tc7_string 13
#define scm_tc7_bvect 15
#define scm_tc7_vector 21
#define scm_tc7_lvector 23
#define scm_tc7_ivect 29
#define scm_tc7_uvect 31
/* spare 37 39 */
#define scm_tc7_fvect 45
#define scm_tc7_dvect 47
#define scm_tc7_cvect 53
#define scm_tc7_port 55
#define scm_tc7_contin 61
#define scm_tc7_cclo 63
/* spare 69 71 77 79 */
#define scm_tc7_subr_0 85
#define scm_tc7_subr_1 87
#define scm_tc7_cxr 93
#define scm_tc7_subr_3 95
#define scm_tc7_subr_2 101
#define scm_tc7_asubr 103
#define scm_tc7_subr_1o 109
#define scm_tc7_subr_2o 111
#define scm_tc7_lsubr_2 117
#define scm_tc7_lsubr 119
#define scm_tc7_rpsubr 125
#define scm_tc7_smob 127
#define scm_tc_free_cell 127
#define scm_tc16_flo 0x017f
#define scm_tc_flo 0x017fL
#define SCM_REAL_PART (1L<<16)
#define SCM_IMAG_PART (2L<<16)
#define scm_tc_dblr (scm_tc16_flo|REAL_PART)
#define scm_tc_dblc (scm_tc16_flo|REAL_PART|IMAG_PART)
#define scm_tc16_bigpos 0x027f
#define scm_tc16_bigneg 0x037f
#define scm_tc16_fport (scm_tc7_port + 0*256L)
#define scm_tc16_pipe (scm_tc7_port + 1*256L)
#define scm_tc16_strport (scm_tc7_port + 2*256L)
#define scm_tc16_sfport (scm_tc7_port + 3*256L)
/* For cons pairs with immediate values in the CAR */
#define scm_tcs_cons_imcar 2:case 4:case 6:case 10:\
case 12:case 14:case 18:case 20:\
case 22:case 26:case 28:case 30:\
case 34:case 36:case 38:case 42:\
case 44:case 46:case 50:case 52:\
case 54:case 58:case 60:case 62:\
case 66:case 68:case 70:case 74:\
case 76:case 78:case 82:case 84:\
case 86:case 90:case 92:case 94:\
case 98:case 100:case 102:case 106:\
case 108:case 110:case 114:case 116:\
case 118:case 122:case 124:case 126
/* For cons pairs with non-immediate values in the CAR */
#define scm_tcs_cons_nimcar 0:case 8:case 16:case 24:\
case 32:case 40:case 48:case 56:\
case 64:case 72:case 80:case 88:\
case 96:case 104:case 112:case 120
/* A CONS_GLOC occurs in code. It's CAR is a pointer to the
* CDR of a variable. The low order bits of the CAR are 001.
* The CDR of the gloc is the code continuation.
*/
#define scm_tcs_cons_gloc 1:case 9:case 17:case 25:\
case 33:case 41:case 49:case 57:\
case 65:case 73:case 81:case 89:\
case 97:case 105:case 113:case 121
#define scm_tcs_closures 3:case 11:case 19:case 27:\
case 35:case 43:case 51:case 59:\
case 67:case 75:case 83:case 91:\
case 99:case 107:case 115:case 123
#define scm_tcs_subrs scm_tc7_asubr:case scm_tc7_subr_0:case scm_tc7_subr_1:case scm_tc7_cxr:\
case scm_tc7_subr_3:case scm_tc7_subr_2:case scm_tc7_rpsubr:case scm_tc7_subr_1o:\
case scm_tc7_subr_2o:case scm_tc7_lsubr_2:case scm_tc7_lsubr
#define scm_tcs_symbols scm_tc7_ssymbol:case scm_tc7_msymbol
#define scm_tcs_bignums tc16_bigpos:case tc16_bigneg
/* References to objects are of type SCM. Values may be non-immediate
* (pointers) or immediate (encoded, immutable, scalar values that fit
* in an SCM variable).
*/
typedef long SCM;
/* Cray machines have pointers that are incremented once for each word,
* rather than each byte, the 3 most significant bits encode the byte
* within the word. The following macros deal with this by storing the
* native Cray pointers like the ones that looks like scm expects. This
* is done for any pointers that might appear in the car of a scm_cell, pointers
* to scm_vector elts, functions, &c are not munged.
*/
#ifdef _UNICOS
#define SCM2PTR(x) ((int)(x) >> 3)
#define PTR2SCM(x) (((SCM)(x)) << 3)
#define SCM_POINTERS_MUNGED
#else
#define SCM2PTR(x) (x)
#define PTR2SCM(x) ((SCM)(x))
#endif /* def _UNICOS */
/* Immediate? Predicates
*/
#define SCM_IMP(x) (6 & (int)(x))
#define SCM_NIMP(x) (!SCM_IMP(x))
enum scm_tags
{
scm_tc8_char = 0xf4
};
#define SCM_ITAG8(X) ((int)(X) & 0xff)
#define SCM_MAKE_ITAG8(X, TAG) (((X)<<8) + TAG)
#define SCM_ITAG8_DATA(X) ((X)>>8)
/* Local Environment Structure
*/
#define SCM_ILOCP(n) ((0xff & (int)(n))==0xfc)
#define SCM_ILOC00 (0x000000fcL)
#define SCM_IDINC (0x00100000L)
#define SCM_ICDR (0x00080000L)
#define SCM_IFRINC (0x00000100L)
#define SCM_IDSTMSK (-SCM_IDINC)
#define SCM_IFRAME(n) ((int)((SCM_ICDR-SCM_IFRINC)>>8) & ((int)(n)>>8))
#define SCM_IDIST(n) (((unsigned long)(n))>>20)
#define SCM_ICDRP(n) (SCM_ICDR & (n))
/* Immediate Symbols, Special Symbols, Flags (various constants).
*/
/* ISYMP tests for ISPCSYM and ISYM */
#define SCM_ISYMP(n) ((0x187 & (int)(n))==4)
/* IFLAGP tests for ISPCSYM, ISYM and IFLAG */
#define SCM_IFLAGP(n) ((0x87 & (int)(n))==4)
#define SCM_ISYMNUM(n) ((int)((n)>>9))
#define SCM_ISYMCHARS(n) (scm_isymnames[SCM_ISYMNUM(n)])
#define SCM_MAKSPCSYM(n) (((n)<<9)+((n)<<3)+4L)
#define SCM_MAKISYM(n) (((n)<<9)+0x74L)
#define SCM_MAKIFLAG(n) (((n)<<9)+0x174L)
/* This table must agree with the declarations
* in repl.c: {Names of immediate symbols}.
*
* These are used only in eval but their values
* have to be allocated here.
*
*/
#define SCM_IM_AND SCM_MAKSPCSYM(0)
#define SCM_IM_BEGIN SCM_MAKSPCSYM(1)
#define SCM_IM_CASE SCM_MAKSPCSYM(2)
#define SCM_IM_COND SCM_MAKSPCSYM(3)
#define SCM_IM_DO SCM_MAKSPCSYM(4)
#define SCM_IM_IF SCM_MAKSPCSYM(5)
#define SCM_IM_LAMBDA SCM_MAKSPCSYM(6)
#define SCM_IM_LET SCM_MAKSPCSYM(7)
#define SCM_IM_LETSTAR SCM_MAKSPCSYM(8)
#define SCM_IM_LETREC SCM_MAKSPCSYM(9)
#define SCM_IM_OR SCM_MAKSPCSYM(10)
#define SCM_IM_QUOTE SCM_MAKSPCSYM(11)
#define SCM_IM_SET SCM_MAKSPCSYM(12)
#define SCM_IM_DEFINE SCM_MAKSPCSYM(13)
#define SCM_IM_APPLY SCM_MAKISYM(14)
#define SCM_IM_CONT SCM_MAKISYM(15)
#define SCM_NUM_ISYMS 16
/* Important immediates
*/
#define SCM_BOOL_F SCM_MAKIFLAG(SCM_NUM_ISYMS+0)
#define SCM_BOOL_T SCM_MAKIFLAG(SCM_NUM_ISYMS+1)
#define SCM_UNDEFINED SCM_MAKIFLAG(SCM_NUM_ISYMS+2)
#define SCM_EOF_VAL SCM_MAKIFLAG(SCM_NUM_ISYMS+3)
#ifdef SICP
#define SCM_EOL SCM_BOOL_F
#else
#define SCM_EOL SCM_MAKIFLAG(SCM_NUM_ISYMS+4)
#endif
#define SCM_UNSPECIFIED SCM_MAKIFLAG(SCM_NUM_ISYMS+5)
/* Heap Pairs and the Empty List Predicates
*/
#define SCM_NULLP(x) (SCM_EOL == (x))
#define SCM_NNULLP(x) (SCM_EOL != (x))
#define SCM_CELLP(x) (!SCM_NCELLP(x))
#define SCM_NCELLP(x) ((sizeof(scm_cell)-1) & (int)(x))
#define SCM_UNBNDP(x) (SCM_UNDEFINED==(x))
/* Testing and Changing GC Marks in Various Standard Positions
*/
#define SCM_GCMARKP(x) (1 & (int)SCM_CDR(x))
#define SCM_GC8MARKP(x) (0x80 & (int)SCM_CAR(x))
#define SCM_SETGCMARK(x) (SCM_CDR(x) |= 1)
#define SCM_CLRGCMARK(x) (SCM_CDR(x) &= ~1L)
#define SCM_SETGC8MARK(x) (SCM_CAR(x) |= 0x80)
#define SCM_CLRGC8MARK(x) (SCM_CAR(x) &= ~0x80L)
/* Extracting Tag Bits, With or Without GC Safety and Optional Bits
*/
#define SCM_TYP3(x) (7 & (int)SCM_CAR(x))
#define SCM_TYP7(x) (0x7f & (int)SCM_CAR(x))
#define SCM_TYP7S(x) (0x7d & (int)SCM_CAR(x))
#define SCM_TYP16(x) (0xffff & (int)SCM_CAR(x))
#define SCM_TYP16S(x) (0xfeff & (int)SCM_CAR(x))
#define SCM_GCTYP16(x) (0xff7f & (int)SCM_CAR(x))
/* Two slightly extensible types: smobs and ptobs.
*/
#define SCM_SMOBNUM(x) (0x0ff & (CAR(x)>>8));
#define SCM_PTOBNUM(x) (0x0ff & (CAR(x)>>8));
#define SCM_DIRP(x) (SCM_NIMP(x) && (TYP16(x)==(scm_tc16_dir)))
#define SCM_OPDIRP(x) (SCM_NIMP(x) && (CAR(x)==(scm_tc16_dir | OPN)))
/* Lvectors
*/
#define SCM_LVECTORP(x) (TYP7(x)==tc7_lvector)
#if 0
/* Sockets
*/
#define tc_socket (tc7_port | OPN)
#define SCM_SOCKP(x) (((0x7f | OPN | RDNG | WRTNG) & CAR(x))==(tc_socket))
#define SCM_SOCKTYP(x) (CAR(x)>>24)
extern int scm_tc16_key_vector;
#define SCM_KEYVECP(X) (scm_tc16_key_vector == TYP16 (X))
#define SCM_KEYVECLEN(OBJ) (((unsigned long)CAR (obj)) >> 16)
#define SCM_MALLOCDATA(obj) ((char *)CDR(obj))
#define SCM_MALLOCLEN(obj) (((unsigned long)CAR (obj)) >> 16)
#define SCM_WORDDATA(obj) (CDR (obj))
#define SCM_BYTECODEP(X) ((TYP7 (X) == tc7_cclo) && (CCLO_SUBR (X) == rb_proc))
#define SCM_BYTECODE_CONSTANTS(X) (VELTS(X)[1])
#define SCM_BYTECODE_CODE(X) (VELTS(X)[2])
#define SCM_BYTECODE_NAME(X) (VELTS(X)[3])
#define SCM_BYTECODE_BCODE(X) (VELTS(X)[4])
#define SCM_BYTECODE_ELTS 5
#define SCM_FREEP(x) (CAR(x)==tc_free_cell)
#define SCM_NFREEP(x) (!FREEP(x))
#endif /* 0 */
#endif /* TAGSH */

438
gdb/scm-valprint.c Normal file
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@ -0,0 +1,438 @@
/* Scheme/Guile language support routines for GDB, the GNU debugger.
Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2005, 2007 Free Software
Foundation, Inc.
This file is part of GDB.
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.
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.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
#include "defs.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "parser-defs.h"
#include "language.h"
#include "value.h"
#include "scm-lang.h"
#include "valprint.h"
#include "gdbcore.h"
#include "c-lang.h"
#include "infcall.h"
static void scm_ipruk (char *, LONGEST, struct ui_file *);
static void scm_scmlist_print (LONGEST, struct ui_file *, int, int,
int, enum val_prettyprint);
static int scm_inferior_print (LONGEST, struct ui_file *, int, int,
int, enum val_prettyprint);
/* Prints the SCM value VALUE by invoking the inferior, if appropraite.
Returns >= 0 on success; return -1 if the inferior cannot/should not
print VALUE. */
static int
scm_inferior_print (LONGEST value, struct ui_file *stream, int format,
int deref_ref, int recurse, enum val_prettyprint pretty)
{
struct value *func, *arg, *result;
struct symbol *gdb_output_sym, *gdb_output_len_sym;
char *output;
int ret, output_len;
func = find_function_in_inferior ("gdb_print");
arg = value_from_longest (builtin_type_CORE_ADDR, value);
result = call_function_by_hand (func, 1, &arg);
ret = (int) value_as_long (result);
if (ret == 0)
{
/* XXX: Should we cache these symbols? */
gdb_output_sym =
lookup_symbol_global ("gdb_output", NULL, NULL,
VAR_DOMAIN,
(struct symtab **) NULL);
gdb_output_len_sym =
lookup_symbol_global ("gdb_output_length", NULL, NULL,
VAR_DOMAIN,
(struct symtab **) NULL);
if ((gdb_output_sym == NULL) || (gdb_output_len_sym == NULL))
ret = -1;
else
{
struct value *remote_buffer;
read_memory (SYMBOL_VALUE_ADDRESS (gdb_output_len_sym),
(char *) &output_len, sizeof (output_len));
output = (char *) alloca (output_len);
remote_buffer = value_at (builtin_type_CORE_ADDR,
SYMBOL_VALUE_ADDRESS (gdb_output_sym));
read_memory (value_as_address (remote_buffer),
output, output_len);
ui_file_write (stream, output, output_len);
}
}
return ret;
}
/* {Names of immediate symbols}
* This table must agree with the declarations in scm.h: {Immediate Symbols}.*/
static char *scm_isymnames[] =
{
/* This table must agree with the declarations */
"and",
"begin",
"case",
"cond",
"do",
"if",
"lambda",
"let",
"let*",
"letrec",
"or",
"quote",
"set!",
"define",
#if 0
"literal-variable-ref",
"literal-variable-set!",
#endif
"apply",
"call-with-current-continuation",
/* user visible ISYMS */
/* other keywords */
/* Flags */
"#f",
"#t",
"#<undefined>",
"#<eof>",
"()",
"#<unspecified>"
};
static void
scm_scmlist_print (LONGEST svalue, struct ui_file *stream, int format,
int deref_ref, int recurse, enum val_prettyprint pretty)
{
unsigned int more = print_max;
if (recurse > 6)
{
fputs_filtered ("...", stream);
return;
}
scm_scmval_print (SCM_CAR (svalue), stream, format,
deref_ref, recurse + 1, pretty);
svalue = SCM_CDR (svalue);
for (; SCM_NIMP (svalue); svalue = SCM_CDR (svalue))
{
if (SCM_NECONSP (svalue))
break;
fputs_filtered (" ", stream);
if (--more == 0)
{
fputs_filtered ("...", stream);
return;
}
scm_scmval_print (SCM_CAR (svalue), stream, format,
deref_ref, recurse + 1, pretty);
}
if (SCM_NNULLP (svalue))
{
fputs_filtered (" . ", stream);
scm_scmval_print (svalue, stream, format,
deref_ref, recurse + 1, pretty);
}
}
static void
scm_ipruk (char *hdr, LONGEST ptr, struct ui_file *stream)
{
fprintf_filtered (stream, "#<unknown-%s", hdr);
#define SCM_SIZE TYPE_LENGTH (builtin_type_scm)
if (SCM_CELLP (ptr))
fprintf_filtered (stream, " (0x%lx . 0x%lx) @",
(long) SCM_CAR (ptr), (long) SCM_CDR (ptr));
fprintf_filtered (stream, " 0x%s>", paddr_nz (ptr));
}
void
scm_scmval_print (LONGEST svalue, struct ui_file *stream, int format,
int deref_ref, int recurse, enum val_prettyprint pretty)
{
taloop:
switch (7 & (int) svalue)
{
case 2:
case 6:
print_longest (stream, format ? format : 'd', 1, svalue >> 2);
break;
case 4:
if (SCM_ICHRP (svalue))
{
svalue = SCM_ICHR (svalue);
scm_printchar (svalue, stream);
break;
}
else if (SCM_IFLAGP (svalue)
&& (SCM_ISYMNUM (svalue)
< (sizeof scm_isymnames / sizeof (char *))))
{
fputs_filtered (SCM_ISYMCHARS (svalue), stream);
break;
}
else if (SCM_ILOCP (svalue))
{
fprintf_filtered (stream, "#@%ld%c%ld",
(long) SCM_IFRAME (svalue),
SCM_ICDRP (svalue) ? '-' : '+',
(long) SCM_IDIST (svalue));
break;
}
else
goto idef;
break;
case 1:
/* gloc */
svalue = SCM_CAR (svalue - 1);
goto taloop;
default:
idef:
scm_ipruk ("immediate", svalue, stream);
break;
case 0:
switch (SCM_TYP7 (svalue))
{
case scm_tcs_cons_gloc:
if (SCM_CDR (SCM_CAR (svalue) - 1L) == 0)
{
#if 0
SCM name;
#endif
fputs_filtered ("#<latte ", stream);
#if 1
fputs_filtered ("???", stream);
#else
name = ((SCM n *) (STRUCT_TYPE (exp)))[struct_i_name];
scm_lfwrite (CHARS (name),
(sizet) sizeof (char),
(sizet) LENGTH (name),
port);
#endif
fprintf_filtered (stream, " #X%s>", paddr_nz (svalue));
break;
}
case scm_tcs_cons_imcar:
case scm_tcs_cons_nimcar:
fputs_filtered ("(", stream);
scm_scmlist_print (svalue, stream, format,
deref_ref, recurse + 1, pretty);
fputs_filtered (")", stream);
break;
case scm_tcs_closures:
fputs_filtered ("#<CLOSURE ", stream);
scm_scmlist_print (SCM_CODE (svalue), stream, format,
deref_ref, recurse + 1, pretty);
fputs_filtered (">", stream);
break;
case scm_tc7_string:
{
int len = SCM_LENGTH (svalue);
CORE_ADDR addr = (CORE_ADDR) SCM_CDR (svalue);
int i;
int done = 0;
int buf_size;
gdb_byte buffer[64];
int truncate = print_max && len > (int) print_max;
if (truncate)
len = print_max;
fputs_filtered ("\"", stream);
for (; done < len; done += buf_size)
{
buf_size = min (len - done, 64);
read_memory (addr + done, buffer, buf_size);
for (i = 0; i < buf_size; ++i)
switch (buffer[i])
{
case '\"':
case '\\':
fputs_filtered ("\\", stream);
default:
fprintf_filtered (stream, "%c", buffer[i]);
}
}
fputs_filtered (truncate ? "...\"" : "\"", stream);
break;
}
break;
case scm_tcs_symbols:
{
int len = SCM_LENGTH (svalue);
char *str = alloca (len);
read_memory (SCM_CDR (svalue), (gdb_byte *) str, len + 1);
/* Should handle weird characters FIXME */
str[len] = '\0';
fputs_filtered (str, stream);
break;
}
case scm_tc7_vector:
{
int len = SCM_LENGTH (svalue);
int i;
LONGEST elements = SCM_CDR (svalue);
fputs_filtered ("#(", stream);
for (i = 0; i < len; ++i)
{
if (i > 0)
fputs_filtered (" ", stream);
scm_scmval_print (scm_get_field (elements, i), stream, format,
deref_ref, recurse + 1, pretty);
}
fputs_filtered (")", stream);
}
break;
#if 0
case tc7_lvector:
{
SCM result;
SCM hook;
hook = scm_get_lvector_hook (exp, LV_PRINT_FN);
if (hook == BOOL_F)
{
scm_puts ("#<locked-vector ", port);
scm_intprint (CDR (exp), 16, port);
scm_puts (">", port);
}
else
{
result
= scm_apply (hook,
scm_listify (exp, port,
(writing ? BOOL_T : BOOL_F),
SCM_UNDEFINED),
EOL);
if (result == BOOL_F)
goto punk;
}
break;
}
break;
case tc7_bvect:
case tc7_ivect:
case tc7_uvect:
case tc7_fvect:
case tc7_dvect:
case tc7_cvect:
scm_raprin1 (exp, port, writing);
break;
#endif
case scm_tcs_subrs:
{
int index = SCM_CAR (svalue) >> 8;
#if 1
char str[20];
sprintf (str, "#%d", index);
#else
char *str = index ? SCM_CHARS (scm_heap_org + index) : "";
#define SCM_CHARS(x) ((char *)(SCM_CDR(x)))
char *str = CHARS (SNAME (exp));
#endif
fprintf_filtered (stream, "#<primitive-procedure %s>",
str);
}
break;
#if 0
#ifdef CCLO
case tc7_cclo:
scm_puts ("#<compiled-closure ", port);
scm_iprin1 (CCLO_SUBR (exp), port, writing);
scm_putc ('>', port);
break;
#endif
case tc7_contin:
fprintf_filtered (stream, "#<continuation %d @ #X%lx >",
LENGTH (svalue),
(long) CHARS (svalue));
break;
case tc7_port:
i = PTOBNUM (exp);
if (i < scm_numptob
&& scm_ptobs[i].print
&& (scm_ptobs[i].print) (exp, port, writing))
break;
goto punk;
case tc7_smob:
i = SMOBNUM (exp);
if (i < scm_numsmob && scm_smobs[i].print
&& (scm_smobs[i].print) (exp, port, writing))
break;
goto punk;
#endif
default:
#if 0
punk:
#endif
scm_ipruk ("type", svalue, stream);
}
break;
}
}
int
scm_val_print (struct type *type, const gdb_byte *valaddr,
int embedded_offset, CORE_ADDR address,
struct ui_file *stream, int format, int deref_ref,
int recurse, enum val_prettyprint pretty)
{
if (is_scmvalue_type (type))
{
LONGEST svalue = extract_signed_integer (valaddr, TYPE_LENGTH (type));
if (scm_inferior_print (svalue, stream, format,
deref_ref, recurse, pretty) >= 0)
{
}
else
{
scm_scmval_print (svalue, stream, format,
deref_ref, recurse, pretty);
}
gdb_flush (stream);
return (0);
}
else
{
return c_val_print (type, valaddr, 0, address, stream, format,
deref_ref, recurse, pretty);
}
}
int
scm_value_print (struct value *val, struct ui_file *stream, int format,
enum val_prettyprint pretty)
{
return (common_val_print (val, stream, format, 1, 0, pretty));
}