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.
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 \
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
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 \
$(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) \
language_asm, /* Assembly language */
language_pascal, /* Pascal */
language_ada, /* Ada */
+ language_scm, /* Guile Scheme */
language_minimal, /* All other languages, minimal support only */
nr_languages
};
--- /dev/null
+/* 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;
+}
--- /dev/null
+/* 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);
+}
--- /dev/null
+/* 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);
--- /dev/null
+/* 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.
+ */
+\f
+
+/** This file defines the format of SCM values and cons pairs.
+ ** It is here that tag bits are assigned for various purposes.
+ **/
+\f
+
+/* 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.
+ */
+\f
+
+
+
+
+#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
+\f
+
+
+/* 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 */
+\f
+
+
+/* Immediate? Predicates
+ */
+#define SCM_IMP(x) (6 & (int)(x))
+#define SCM_NIMP(x) (!SCM_IMP(x))
+\f
+
+
+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)
+\f
+
+
+/* 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))
+\f
+
+/* 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)
+\f
+
+
+/* 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))
+\f
+
+
+#define SCM_UNBNDP(x) (SCM_UNDEFINED==(x))
+\f
+
+
+/* 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)
+\f
+
+/* 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))
+\f
+
+/* Two slightly extensible types: smobs and ptobs.
+
+ */
+#define SCM_SMOBNUM(x) (0x0ff & (CAR(x)>>8));
+#define SCM_PTOBNUM(x) (0x0ff & (CAR(x)>>8));
+\f
+
+
+
+#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)))
+\f
+
+
+/* Lvectors
+ */
+#define SCM_LVECTORP(x) (TYP7(x)==tc7_lvector)
+\f
+
+#if 0
+\f
+/* 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)
+\f
+
+
+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)
+\f
+
+#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
+\f
+
+#define SCM_FREEP(x) (CAR(x)==tc_free_cell)
+#define SCM_NFREEP(x) (!FREEP(x))
+\f
+#endif /* 0 */
+\f
+
+#endif /* TAGSH */
--- /dev/null
+/* 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));
+}
projects / binutils-gdb.git / commitdiff