+++ /dev/null
-/* Scheme/Guile language support routines for GDB, the GNU debugger.
-
- Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2005, 2007, 2008, 2009,
- 2010 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 3 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, see <http://www.gnu.org/licenses/>. */
-
-#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"
-#include "objfiles.h"
-
-static void scm_ipruk (char *, struct type *, LONGEST, struct ui_file *);
-static void scm_scmval_print (struct type *, LONGEST, struct ui_file *,
- int, const struct value_print_options *);
-static void scm_scmlist_print (struct type *, LONGEST, struct ui_file *,
- int, const struct value_print_options *);
-static int scm_inferior_print (struct type *, LONGEST, struct ui_file *,
- int, const struct value_print_options *);
-
-/* 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 (struct type *type, LONGEST value, struct ui_file *stream,
- int recurse, const struct value_print_options *options)
-{
- 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", NULL);
- arg = value_from_longest (type, 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, VAR_DOMAIN);
- gdb_output_len_sym =
- lookup_symbol_global ("gdb_output_length", NULL, VAR_DOMAIN);
-
- 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 (type,
- 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 (struct type *type, LONGEST svalue,
- struct ui_file *stream, int recurse,
- const struct value_print_options *options)
-{
-#define SCM_SIZE (TYPE_LENGTH (type))
-#define SCM_BYTE_ORDER (gdbarch_byte_order (get_type_arch (type)))
- unsigned int more = options->print_max;
-
- if (recurse > 6)
- {
- fputs_filtered ("...", stream);
- return;
- }
- scm_scmval_print (type, SCM_CAR (svalue), stream, recurse + 1, options);
- 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 (type, SCM_CAR (svalue), stream, recurse + 1, options);
- }
- if (SCM_NNULLP (svalue))
- {
- fputs_filtered (" . ", stream);
- scm_scmval_print (type, svalue, stream, recurse + 1, options);
- }
-#undef SCM_BYTE_ORDER
-#undef SCM_SIZE
-}
-
-static void
-scm_ipruk (char *hdr, struct type *type, LONGEST ptr,
- struct ui_file *stream)
-{
-#define SCM_SIZE (TYPE_LENGTH (type))
-#define SCM_BYTE_ORDER (gdbarch_byte_order (get_type_arch (type)))
- fprintf_filtered (stream, "#<unknown-%s", hdr);
- if (SCM_CELLP (ptr))
- fprintf_filtered (stream, " (0x%lx . 0x%lx) @",
- (long) SCM_CAR (ptr), (long) SCM_CDR (ptr));
- fprintf_filtered (stream, " 0x%s>", phex_nz (ptr, SCM_SIZE));
-#undef SCM_BYTE_ORDER
-#undef SCM_SIZE
-}
-
-static void
-scm_scmval_print (struct type *type, LONGEST svalue,
- struct ui_file *stream, int recurse,
- const struct value_print_options *options)
-{
- struct gdbarch *gdbarch = get_type_arch (type);
-
-#define SCM_SIZE (TYPE_LENGTH (type))
-#define SCM_BYTE_ORDER (gdbarch_byte_order (gdbarch))
-taloop:
- switch (7 & (int) svalue)
- {
- case 2:
- case 6:
- print_longest (stream,
- options->format ? options->format : 'd',
- 1, svalue >> 2);
- break;
- case 4:
- if (SCM_ICHRP (svalue))
- {
- svalue = SCM_ICHR (svalue);
- scm_printchar (svalue, builtin_type (gdbarch)->builtin_char,
- 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", type, 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>", phex_nz (svalue, SCM_SIZE));
- break;
- }
- case scm_tcs_cons_imcar:
- case scm_tcs_cons_nimcar:
- fputs_filtered ("(", stream);
- scm_scmlist_print (type, svalue, stream, recurse + 1, options);
- fputs_filtered (")", stream);
- break;
- case scm_tcs_closures:
- fputs_filtered ("#<CLOSURE ", stream);
- scm_scmlist_print (type, SCM_CODE (svalue), stream,
- recurse + 1, options);
- 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 = options->print_max && len > (int) options->print_max;
- if (truncate)
- len = options->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);
- LONGEST val;
-
- fputs_filtered ("#(", stream);
- for (i = 0; i < len; ++i)
- {
- if (i > 0)
- fputs_filtered (" ", stream);
- val = scm_get_field (elements, i, SCM_SIZE, SCM_BYTE_ORDER);
- scm_scmval_print (type, val, stream, recurse + 1, options);
- }
- 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", type, svalue, stream);
- }
- break;
- }
-#undef SCM_BYTE_ORDER
-#undef SCM_SIZE
-}
-
-int
-scm_val_print (struct type *type, const gdb_byte *valaddr,
- int embedded_offset, CORE_ADDR address,
- struct ui_file *stream, int recurse,
- const struct value *val,
- const struct value_print_options *options)
-{
- if (is_scmvalue_type (type)
- && value_bits_valid (val, TARGET_CHAR_BIT * embedded_offset,
- TARGET_CHAR_BIT * TYPE_LENGTH (type)))
- {
- enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
- LONGEST svalue
- = extract_signed_integer (valaddr, TYPE_LENGTH (type), byte_order);
-
- if (scm_inferior_print (type, svalue, stream, recurse, options) >= 0)
- {
- }
- else
- {
- scm_scmval_print (type, svalue, stream, recurse, options);
- }
-
- gdb_flush (stream);
- return (0);
- }
- else
- {
- return c_val_print (type, valaddr, 0, address, stream, recurse,
- val, options);
- }
-}
-
-int
-scm_value_print (struct value *val, struct ui_file *stream,
- const struct value_print_options *options)
-{
- struct value_print_options opts = *options;
-
- opts.deref_ref = 1;
- return (common_val_print (val, stream, 0, &opts, current_language));
-}
projects / thirdparty / binutils-gdb.git / blobdiff