old-cross-binutils/gdb/scm-valprint.c

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/* Scheme/Guile language support routines for GDB, the GNU debugger.
Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2005, 2007, 2008
Free Software Foundation, Inc.
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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 3 of the License, or
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(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, see <http://www.gnu.org/licenses/>. */
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#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 =
* language.h (struct language_defn): Remove SYMTAB parameter from la_lookup_symbol_nonlocal callback function pointer. * ada-lang.h (ada_lookup_encoded_symbol): Remove SYMTAB parameter. (ada_lookup_encoded_symbol): Likewise. * ada-lang.c (ada_lookup_encoded_symbol): Remove SYMTAB parameter. Always call fixup_symbol_section. (ada_lookup_symbol): Remove SYMTAB parameter. (ada_lookup_symbol_nonlocal): Likewise. * ada-exp.y (write_object_renaming): Update. (find_primitive_type): Likewise. * cp-support.h (cp_lookup_symbol_nonlocal): Remove SYMTAB parameter. (cp_lookup_symbol_namespace): Likewise. * cp-namespace.c (lookup_namespace_scope): Remove SYMTAB parameter. (lookup_symbol_file): Likewise. (lookup_possible_namespace_symbol): Likewise. (cp_lookup_symbol_nonlocal): Likewise. (cp_lookup_symbol_namespace): Likewise. (cp_lookup_nested_type): Update. * scm-valprint.c (scm_inferior_print): Update. * valops.c (value_maybe_namespace_elt): Update. * solist.h (struct target_so_ops): Remove SYMTAB parameter from lookup_lib_global_symbol callback function pointer. (solib_global_lookup): Remove SYMTAB parameter. * solib.c (solib_global_lookup): Remove SYMTAB parameter. * solib-svr4.c (elf_lookup_lib_symbol): Likewise. * symtab.h (basic_lookup_symbol_nonlocal): Remove SYMTAB parameter. (lookup_symbol_static): Likewise. (lookup_symbol_global): Likewise. (lookup_symbol_aux_block): Likewise. (lookup_global_symbol_from_objfile): Likewise. * symtab.c (lookup_symbol_aux): Remove SYMTAB parameter. (lookup_symbol_aux_local): Likewise. (lookup_symbol_aux_block): Likewise. (lookup_symbol_aux_symtabs): Likewise. (lookup_symbol_aux_psymtabs): Likewise. (lookup_global_symbol_from_objfile): Likewise. (basic_lookup_symbol_nonlocal): Likewise. (lookup_symbol_static): Likewise. (lookup_symbol_global): Likewise. (lookup_symbol_in_language): Do not pass SYMTAB to lookup_symbol_aux.
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lookup_symbol_global ("gdb_output", NULL, NULL, VAR_DOMAIN);
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gdb_output_len_sym =
* language.h (struct language_defn): Remove SYMTAB parameter from la_lookup_symbol_nonlocal callback function pointer. * ada-lang.h (ada_lookup_encoded_symbol): Remove SYMTAB parameter. (ada_lookup_encoded_symbol): Likewise. * ada-lang.c (ada_lookup_encoded_symbol): Remove SYMTAB parameter. Always call fixup_symbol_section. (ada_lookup_symbol): Remove SYMTAB parameter. (ada_lookup_symbol_nonlocal): Likewise. * ada-exp.y (write_object_renaming): Update. (find_primitive_type): Likewise. * cp-support.h (cp_lookup_symbol_nonlocal): Remove SYMTAB parameter. (cp_lookup_symbol_namespace): Likewise. * cp-namespace.c (lookup_namespace_scope): Remove SYMTAB parameter. (lookup_symbol_file): Likewise. (lookup_possible_namespace_symbol): Likewise. (cp_lookup_symbol_nonlocal): Likewise. (cp_lookup_symbol_namespace): Likewise. (cp_lookup_nested_type): Update. * scm-valprint.c (scm_inferior_print): Update. * valops.c (value_maybe_namespace_elt): Update. * solist.h (struct target_so_ops): Remove SYMTAB parameter from lookup_lib_global_symbol callback function pointer. (solib_global_lookup): Remove SYMTAB parameter. * solib.c (solib_global_lookup): Remove SYMTAB parameter. * solib-svr4.c (elf_lookup_lib_symbol): Likewise. * symtab.h (basic_lookup_symbol_nonlocal): Remove SYMTAB parameter. (lookup_symbol_static): Likewise. (lookup_symbol_global): Likewise. (lookup_symbol_aux_block): Likewise. (lookup_global_symbol_from_objfile): Likewise. * symtab.c (lookup_symbol_aux): Remove SYMTAB parameter. (lookup_symbol_aux_local): Likewise. (lookup_symbol_aux_block): Likewise. (lookup_symbol_aux_symtabs): Likewise. (lookup_symbol_aux_psymtabs): Likewise. (lookup_global_symbol_from_objfile): Likewise. (basic_lookup_symbol_nonlocal): Likewise. (lookup_symbol_static): Likewise. (lookup_symbol_global): Likewise. (lookup_symbol_in_language): Do not pass SYMTAB to lookup_symbol_aux.
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lookup_symbol_global ("gdb_output_length", NULL, NULL, VAR_DOMAIN);
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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,
current_language));
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}