92c48fc5e7
* guile/scm-arch.c (arscm_mark_arch_smob): * guile/scm-block.c (bkscm_mark_block_smob) (bkscm_mark_block_syms_progress_smob): * guile/scm-breakpoint.c (bpscm_mark_breakpoint_smob): * guile/scm-exception.c (exscm_mark_exception_smob): * guile/scm-frame.c (frscm_mark_frame_smob): * guile/scm-iterator.c (itscm_mark_iterator_smob): * guile/scm-lazy-string.c (lsscm_mark_lazy_string_smob): * guile/scm-objfile.c (ofscm_mark_objfile_smob): * guile/scm-pretty-print.c (ppscm_mark_pretty_printer_smob) (ppscm_mark_pretty_printer_worker_smob): * guile/scm-symbol.c (syscm_mark_symbol_smob): * guile/scm-symtab.c (stscm_mark_symtab_smob, stscm_mark_sal_smob): * guile/scm-type.c (tyscm_mark_type_smob, tyscm_mark_field_smob): * guile/scm-value.c (vlscm_mark_value_smob): Remove unnecessary mark functions. * guile/scm-symtab.c (stscm_free_sal_smob): Remove unnecessary free function.
802 lines
21 KiB
C
802 lines
21 KiB
C
/* Scheme interface to blocks.
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Copyright (C) 2008-2014 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* See README file in this directory for implementation notes, coding
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conventions, et.al. */
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#include "defs.h"
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#include "block.h"
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#include "dictionary.h"
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#include "objfiles.h"
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#include "source.h"
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#include "symtab.h"
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#include "guile-internal.h"
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/* A smob describing a gdb block. */
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typedef struct _block_smob
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{
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/* This always appears first.
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We want blocks to be eq?-able. And we need to be able to invalidate
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blocks when the associated objfile is deleted. */
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eqable_gdb_smob base;
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/* The GDB block structure that represents a frame's code block. */
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const struct block *block;
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/* The backing object file. There is no direct relationship in GDB
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between a block and an object file. When a block is created also
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store a pointer to the object file for later use. */
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struct objfile *objfile;
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} block_smob;
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/* To iterate over block symbols from Scheme we need to store
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struct block_iterator somewhere. This is stored in the "progress" field
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of <gdb:iterator>. We store the block object in iterator_smob.object,
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so we don't store it here.
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Remember: While iterating over block symbols, you must continually check
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whether the block is still valid. */
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typedef struct
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{
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/* This always appears first. */
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gdb_smob base;
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/* The iterator for that block. */
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struct block_iterator iter;
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/* Has the iterator been initialized flag. */
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int initialized_p;
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} block_syms_progress_smob;
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static const char block_smob_name[] = "gdb:block";
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static const char block_syms_progress_smob_name[] = "gdb:block-symbols-iterator";
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/* The tag Guile knows the block smobs by. */
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static scm_t_bits block_smob_tag;
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static scm_t_bits block_syms_progress_smob_tag;
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/* The "next!" block syms iterator method. */
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static SCM bkscm_next_symbol_x_proc;
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static const struct objfile_data *bkscm_objfile_data_key;
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/* Administrivia for block smobs. */
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/* Helper function to hash a block_smob. */
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static hashval_t
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bkscm_hash_block_smob (const void *p)
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{
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const block_smob *b_smob = p;
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return htab_hash_pointer (b_smob->block);
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}
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/* Helper function to compute equality of block_smobs. */
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static int
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bkscm_eq_block_smob (const void *ap, const void *bp)
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{
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const block_smob *a = ap;
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const block_smob *b = bp;
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return (a->block == b->block
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&& a->block != NULL);
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}
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/* Return the struct block pointer -> SCM mapping table.
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It is created if necessary. */
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static htab_t
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bkscm_objfile_block_map (struct objfile *objfile)
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{
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htab_t htab = objfile_data (objfile, bkscm_objfile_data_key);
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if (htab == NULL)
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{
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htab = gdbscm_create_eqable_gsmob_ptr_map (bkscm_hash_block_smob,
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bkscm_eq_block_smob);
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set_objfile_data (objfile, bkscm_objfile_data_key, htab);
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}
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return htab;
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}
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/* The smob "free" function for <gdb:block>. */
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static size_t
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bkscm_free_block_smob (SCM self)
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{
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block_smob *b_smob = (block_smob *) SCM_SMOB_DATA (self);
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if (b_smob->block != NULL)
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{
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htab_t htab = bkscm_objfile_block_map (b_smob->objfile);
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gdbscm_clear_eqable_gsmob_ptr_slot (htab, &b_smob->base);
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}
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/* Not necessary, done to catch bugs. */
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b_smob->block = NULL;
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b_smob->objfile = NULL;
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return 0;
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}
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/* The smob "print" function for <gdb:block>. */
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static int
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bkscm_print_block_smob (SCM self, SCM port, scm_print_state *pstate)
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{
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block_smob *b_smob = (block_smob *) SCM_SMOB_DATA (self);
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const struct block *b = b_smob->block;
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gdbscm_printf (port, "#<%s", block_smob_name);
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if (BLOCK_SUPERBLOCK (b) == NULL)
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gdbscm_printf (port, " global");
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else if (BLOCK_SUPERBLOCK (BLOCK_SUPERBLOCK (b)) == NULL)
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gdbscm_printf (port, " static");
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if (BLOCK_FUNCTION (b) != NULL)
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gdbscm_printf (port, " %s", SYMBOL_PRINT_NAME (BLOCK_FUNCTION (b)));
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gdbscm_printf (port, " %s-%s",
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hex_string (BLOCK_START (b)), hex_string (BLOCK_END (b)));
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scm_puts (">", port);
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scm_remember_upto_here_1 (self);
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/* Non-zero means success. */
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return 1;
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}
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/* Low level routine to create a <gdb:block> object. */
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static SCM
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bkscm_make_block_smob (void)
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{
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block_smob *b_smob = (block_smob *)
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scm_gc_malloc (sizeof (block_smob), block_smob_name);
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SCM b_scm;
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b_smob->block = NULL;
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b_smob->objfile = NULL;
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b_scm = scm_new_smob (block_smob_tag, (scm_t_bits) b_smob);
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gdbscm_init_eqable_gsmob (&b_smob->base, b_scm);
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return b_scm;
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}
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/* Returns non-zero if SCM is a <gdb:block> object. */
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static int
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bkscm_is_block (SCM scm)
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{
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return SCM_SMOB_PREDICATE (block_smob_tag, scm);
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}
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/* (block? scm) -> boolean */
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static SCM
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gdbscm_block_p (SCM scm)
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{
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return scm_from_bool (bkscm_is_block (scm));
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}
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/* Return the existing object that encapsulates BLOCK, or create a new
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<gdb:block> object. */
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SCM
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bkscm_scm_from_block (const struct block *block, struct objfile *objfile)
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{
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htab_t htab;
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eqable_gdb_smob **slot;
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block_smob *b_smob, b_smob_for_lookup;
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SCM b_scm;
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/* If we've already created a gsmob for this block, return it.
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This makes blocks eq?-able. */
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htab = bkscm_objfile_block_map (objfile);
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b_smob_for_lookup.block = block;
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slot = gdbscm_find_eqable_gsmob_ptr_slot (htab, &b_smob_for_lookup.base);
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if (*slot != NULL)
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return (*slot)->containing_scm;
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b_scm = bkscm_make_block_smob ();
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b_smob = (block_smob *) SCM_SMOB_DATA (b_scm);
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b_smob->block = block;
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b_smob->objfile = objfile;
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gdbscm_fill_eqable_gsmob_ptr_slot (slot, &b_smob->base);
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return b_scm;
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}
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/* Returns the <gdb:block> object in SELF.
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Throws an exception if SELF is not a <gdb:block> object. */
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static SCM
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bkscm_get_block_arg_unsafe (SCM self, int arg_pos, const char *func_name)
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{
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SCM_ASSERT_TYPE (bkscm_is_block (self), self, arg_pos, func_name,
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block_smob_name);
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return self;
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}
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/* Returns a pointer to the block smob of SELF.
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Throws an exception if SELF is not a <gdb:block> object. */
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static block_smob *
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bkscm_get_block_smob_arg_unsafe (SCM self, int arg_pos, const char *func_name)
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{
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SCM b_scm = bkscm_get_block_arg_unsafe (self, arg_pos, func_name);
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block_smob *b_smob = (block_smob *) SCM_SMOB_DATA (b_scm);
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return b_smob;
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}
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/* Returns non-zero if block B_SMOB is valid. */
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static int
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bkscm_is_valid (block_smob *b_smob)
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{
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return b_smob->block != NULL;
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}
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/* Returns the block smob in SELF, verifying it's valid.
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Throws an exception if SELF is not a <gdb:block> object or is invalid. */
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static block_smob *
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bkscm_get_valid_block_smob_arg_unsafe (SCM self, int arg_pos,
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const char *func_name)
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{
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block_smob *b_smob
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= bkscm_get_block_smob_arg_unsafe (self, arg_pos, func_name);
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if (!bkscm_is_valid (b_smob))
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{
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gdbscm_invalid_object_error (func_name, arg_pos, self,
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_("<gdb:block>"));
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}
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return b_smob;
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}
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/* Returns the block smob contained in SCM or NULL if SCM is not a
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<gdb:block> object.
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If there is an error a <gdb:exception> object is stored in *EXCP. */
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static block_smob *
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bkscm_get_valid_block (SCM scm, int arg_pos, const char *func_name, SCM *excp)
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{
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block_smob *b_smob;
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if (!bkscm_is_block (scm))
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{
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*excp = gdbscm_make_type_error (func_name, arg_pos, scm,
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block_smob_name);
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return NULL;
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}
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b_smob = (block_smob *) SCM_SMOB_DATA (scm);
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if (!bkscm_is_valid (b_smob))
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{
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*excp = gdbscm_make_invalid_object_error (func_name, arg_pos, scm,
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_("<gdb:block>"));
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return NULL;
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}
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return b_smob;
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}
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/* Returns the struct block that is wrapped by BLOCK_SCM.
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If BLOCK_SCM is not a block, or is an invalid block, then NULL is returned
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and a <gdb:exception> object is stored in *EXCP. */
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const struct block *
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bkscm_scm_to_block (SCM block_scm, int arg_pos, const char *func_name,
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SCM *excp)
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{
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block_smob *b_smob;
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b_smob = bkscm_get_valid_block (block_scm, arg_pos, func_name, excp);
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if (b_smob != NULL)
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return b_smob->block;
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return NULL;
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}
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/* Helper function for bkscm_del_objfile_blocks to mark the block
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as invalid. */
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static int
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bkscm_mark_block_invalid (void **slot, void *info)
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{
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block_smob *b_smob = (block_smob *) *slot;
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b_smob->block = NULL;
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b_smob->objfile = NULL;
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return 1;
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}
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/* This function is called when an objfile is about to be freed.
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Invalidate the block as further actions on the block would result
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in bad data. All access to b_smob->block should be gated by
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checks to ensure the block is (still) valid. */
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static void
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bkscm_del_objfile_blocks (struct objfile *objfile, void *datum)
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{
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htab_t htab = datum;
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if (htab != NULL)
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{
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htab_traverse_noresize (htab, bkscm_mark_block_invalid, NULL);
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htab_delete (htab);
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}
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}
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/* Block methods. */
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/* (block-valid? <gdb:block>) -> boolean
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Returns #t if SELF still exists in GDB. */
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static SCM
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gdbscm_block_valid_p (SCM self)
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{
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block_smob *b_smob
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= bkscm_get_block_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
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return scm_from_bool (bkscm_is_valid (b_smob));
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}
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/* (block-start <gdb:block>) -> address */
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static SCM
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gdbscm_block_start (SCM self)
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{
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block_smob *b_smob
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= bkscm_get_valid_block_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
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const struct block *block = b_smob->block;
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return gdbscm_scm_from_ulongest (BLOCK_START (block));
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}
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/* (block-end <gdb:block>) -> address */
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static SCM
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gdbscm_block_end (SCM self)
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{
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block_smob *b_smob
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= bkscm_get_valid_block_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
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const struct block *block = b_smob->block;
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return gdbscm_scm_from_ulongest (BLOCK_END (block));
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}
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/* (block-function <gdb:block>) -> <gdb:symbol> */
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static SCM
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gdbscm_block_function (SCM self)
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{
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block_smob *b_smob
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= bkscm_get_valid_block_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
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const struct block *block = b_smob->block;
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struct symbol *sym;
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sym = BLOCK_FUNCTION (block);
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if (sym != NULL)
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return syscm_scm_from_symbol (sym);
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return SCM_BOOL_F;
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}
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/* (block-superblock <gdb:block>) -> <gdb:block> */
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static SCM
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gdbscm_block_superblock (SCM self)
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{
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block_smob *b_smob
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= bkscm_get_valid_block_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
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const struct block *block = b_smob->block;
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const struct block *super_block;
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super_block = BLOCK_SUPERBLOCK (block);
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if (super_block)
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return bkscm_scm_from_block (super_block, b_smob->objfile);
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return SCM_BOOL_F;
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}
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/* (block-global-block <gdb:block>) -> <gdb:block>
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Returns the global block associated to this block. */
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static SCM
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gdbscm_block_global_block (SCM self)
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{
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block_smob *b_smob
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= bkscm_get_valid_block_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
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const struct block *block = b_smob->block;
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const struct block *global_block;
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global_block = block_global_block (block);
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return bkscm_scm_from_block (global_block, b_smob->objfile);
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}
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/* (block-static-block <gdb:block>) -> <gdb:block>
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Returns the static block associated to this block.
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Returns #f if we cannot get the static block (this is the global block). */
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static SCM
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gdbscm_block_static_block (SCM self)
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{
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block_smob *b_smob
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= bkscm_get_valid_block_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
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const struct block *block = b_smob->block;
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const struct block *static_block;
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if (BLOCK_SUPERBLOCK (block) == NULL)
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return SCM_BOOL_F;
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static_block = block_static_block (block);
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return bkscm_scm_from_block (static_block, b_smob->objfile);
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}
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/* (block-global? <gdb:block>) -> boolean
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Returns #t if this block object is a global block. */
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static SCM
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gdbscm_block_global_p (SCM self)
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{
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block_smob *b_smob
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= bkscm_get_valid_block_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
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const struct block *block = b_smob->block;
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return scm_from_bool (BLOCK_SUPERBLOCK (block) == NULL);
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}
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/* (block-static? <gdb:block>) -> boolean
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Returns #t if this block object is a static block. */
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static SCM
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gdbscm_block_static_p (SCM self)
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{
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block_smob *b_smob
|
||
= bkscm_get_valid_block_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
const struct block *block = b_smob->block;
|
||
|
||
if (BLOCK_SUPERBLOCK (block) != NULL
|
||
&& BLOCK_SUPERBLOCK (BLOCK_SUPERBLOCK (block)) == NULL)
|
||
return SCM_BOOL_T;
|
||
return SCM_BOOL_F;
|
||
}
|
||
|
||
/* (block-symbols <gdb:block>) -> list of <gdb:symbol objects
|
||
Returns a list of symbols of the block. */
|
||
|
||
static SCM
|
||
gdbscm_block_symbols (SCM self)
|
||
{
|
||
block_smob *b_smob
|
||
= bkscm_get_valid_block_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
const struct block *block = b_smob->block;
|
||
struct block_iterator iter;
|
||
struct symbol *sym;
|
||
SCM result;
|
||
|
||
result = SCM_EOL;
|
||
|
||
sym = block_iterator_first (block, &iter);
|
||
|
||
while (sym != NULL)
|
||
{
|
||
SCM s_scm = syscm_scm_from_symbol (sym);
|
||
|
||
result = scm_cons (s_scm, result);
|
||
sym = block_iterator_next (&iter);
|
||
}
|
||
|
||
return scm_reverse_x (result, SCM_EOL);
|
||
}
|
||
|
||
/* The <gdb:block-symbols-iterator> object,
|
||
for iterating over all symbols in a block. */
|
||
|
||
/* The smob "print" function for <gdb:block-symbols-iterator>. */
|
||
|
||
static int
|
||
bkscm_print_block_syms_progress_smob (SCM self, SCM port,
|
||
scm_print_state *pstate)
|
||
{
|
||
block_syms_progress_smob *i_smob
|
||
= (block_syms_progress_smob *) SCM_SMOB_DATA (self);
|
||
|
||
gdbscm_printf (port, "#<%s", block_syms_progress_smob_name);
|
||
|
||
if (i_smob->initialized_p)
|
||
{
|
||
switch (i_smob->iter.which)
|
||
{
|
||
case GLOBAL_BLOCK:
|
||
case STATIC_BLOCK:
|
||
{
|
||
struct symtab *s;
|
||
|
||
gdbscm_printf (port, " %s",
|
||
i_smob->iter.which == GLOBAL_BLOCK
|
||
? "global" : "static");
|
||
if (i_smob->iter.idx != -1)
|
||
gdbscm_printf (port, " @%d", i_smob->iter.idx);
|
||
s = (i_smob->iter.idx == -1
|
||
? i_smob->iter.d.symtab
|
||
: i_smob->iter.d.symtab->includes[i_smob->iter.idx]);
|
||
gdbscm_printf (port, " %s", symtab_to_filename_for_display (s));
|
||
break;
|
||
}
|
||
case FIRST_LOCAL_BLOCK:
|
||
gdbscm_printf (port, " single block");
|
||
break;
|
||
}
|
||
}
|
||
else
|
||
gdbscm_printf (port, " !initialized");
|
||
|
||
scm_puts (">", port);
|
||
|
||
scm_remember_upto_here_1 (self);
|
||
|
||
/* Non-zero means success. */
|
||
return 1;
|
||
}
|
||
|
||
/* Low level routine to create a <gdb:block-symbols-progress> object. */
|
||
|
||
static SCM
|
||
bkscm_make_block_syms_progress_smob (void)
|
||
{
|
||
block_syms_progress_smob *i_smob = (block_syms_progress_smob *)
|
||
scm_gc_malloc (sizeof (block_syms_progress_smob),
|
||
block_syms_progress_smob_name);
|
||
SCM smob;
|
||
|
||
memset (&i_smob->iter, 0, sizeof (i_smob->iter));
|
||
i_smob->initialized_p = 0;
|
||
smob = scm_new_smob (block_syms_progress_smob_tag, (scm_t_bits) i_smob);
|
||
gdbscm_init_gsmob (&i_smob->base);
|
||
|
||
return smob;
|
||
}
|
||
|
||
/* Returns non-zero if SCM is a <gdb:block-symbols-progress> object. */
|
||
|
||
static int
|
||
bkscm_is_block_syms_progress (SCM scm)
|
||
{
|
||
return SCM_SMOB_PREDICATE (block_syms_progress_smob_tag, scm);
|
||
}
|
||
|
||
/* (block-symbols-progress? scm) -> boolean */
|
||
|
||
static SCM
|
||
bkscm_block_syms_progress_p (SCM scm)
|
||
{
|
||
return scm_from_bool (bkscm_is_block_syms_progress (scm));
|
||
}
|
||
|
||
/* (make-block-symbols-iterator <gdb:block>) -> <gdb:iterator>
|
||
Return a <gdb:iterator> object for iterating over the symbols of SELF. */
|
||
|
||
static SCM
|
||
gdbscm_make_block_syms_iter (SCM self)
|
||
{
|
||
block_smob *b_smob
|
||
= bkscm_get_valid_block_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
const struct block *block = b_smob->block;
|
||
SCM progress, iter;
|
||
|
||
progress = bkscm_make_block_syms_progress_smob ();
|
||
|
||
iter = gdbscm_make_iterator (self, progress, bkscm_next_symbol_x_proc);
|
||
|
||
return iter;
|
||
}
|
||
|
||
/* Returns the next symbol in the iteration through the block's dictionary,
|
||
or (end-of-iteration).
|
||
This is the iterator_smob.next_x method. */
|
||
|
||
static SCM
|
||
gdbscm_block_next_symbol_x (SCM self)
|
||
{
|
||
SCM progress, iter_scm, block_scm;
|
||
iterator_smob *iter_smob;
|
||
block_smob *b_smob;
|
||
const struct block *block;
|
||
block_syms_progress_smob *p_smob;
|
||
struct symbol *sym;
|
||
|
||
iter_scm = itscm_get_iterator_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
iter_smob = (iterator_smob *) SCM_SMOB_DATA (iter_scm);
|
||
|
||
block_scm = itscm_iterator_smob_object (iter_smob);
|
||
b_smob = bkscm_get_valid_block_smob_arg_unsafe (block_scm,
|
||
SCM_ARG1, FUNC_NAME);
|
||
block = b_smob->block;
|
||
|
||
progress = itscm_iterator_smob_progress (iter_smob);
|
||
|
||
SCM_ASSERT_TYPE (bkscm_is_block_syms_progress (progress),
|
||
progress, SCM_ARG1, FUNC_NAME,
|
||
block_syms_progress_smob_name);
|
||
p_smob = (block_syms_progress_smob *) SCM_SMOB_DATA (progress);
|
||
|
||
if (!p_smob->initialized_p)
|
||
{
|
||
sym = block_iterator_first (block, &p_smob->iter);
|
||
p_smob->initialized_p = 1;
|
||
}
|
||
else
|
||
sym = block_iterator_next (&p_smob->iter);
|
||
|
||
if (sym == NULL)
|
||
return gdbscm_end_of_iteration ();
|
||
|
||
return syscm_scm_from_symbol (sym);
|
||
}
|
||
|
||
/* (lookup-block address) -> <gdb:block>
|
||
Returns the innermost lexical block containing the specified pc value,
|
||
or #f if there is none. */
|
||
|
||
static SCM
|
||
gdbscm_lookup_block (SCM pc_scm)
|
||
{
|
||
CORE_ADDR pc;
|
||
struct block *block = NULL;
|
||
struct obj_section *section = NULL;
|
||
struct symtab *symtab = NULL;
|
||
volatile struct gdb_exception except;
|
||
|
||
gdbscm_parse_function_args (FUNC_NAME, SCM_ARG1, NULL, "U", pc_scm, &pc);
|
||
|
||
TRY_CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
section = find_pc_mapped_section (pc);
|
||
symtab = find_pc_sect_symtab (pc, section);
|
||
|
||
if (symtab != NULL && symtab->objfile != NULL)
|
||
block = block_for_pc (pc);
|
||
}
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
|
||
if (symtab == NULL || symtab->objfile == NULL)
|
||
{
|
||
gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG1, pc_scm,
|
||
_("cannot locate object file for block"));
|
||
}
|
||
|
||
if (block != NULL)
|
||
return bkscm_scm_from_block (block, symtab->objfile);
|
||
return SCM_BOOL_F;
|
||
}
|
||
|
||
/* Initialize the Scheme block support. */
|
||
|
||
static const scheme_function block_functions[] =
|
||
{
|
||
{ "block?", 1, 0, 0, gdbscm_block_p,
|
||
"\
|
||
Return #t if the object is a <gdb:block> object." },
|
||
|
||
{ "block-valid?", 1, 0, 0, gdbscm_block_valid_p,
|
||
"\
|
||
Return #t if the block is valid.\n\
|
||
A block becomes invalid when its objfile is freed." },
|
||
|
||
{ "block-start", 1, 0, 0, gdbscm_block_start,
|
||
"\
|
||
Return the start address of the block." },
|
||
|
||
{ "block-end", 1, 0, 0, gdbscm_block_end,
|
||
"\
|
||
Return the end address of the block." },
|
||
|
||
{ "block-function", 1, 0, 0, gdbscm_block_function,
|
||
"\
|
||
Return the gdb:symbol object of the function containing the block\n\
|
||
or #f if the block does not live in any function." },
|
||
|
||
{ "block-superblock", 1, 0, 0, gdbscm_block_superblock,
|
||
"\
|
||
Return the superblock (parent block) of the block." },
|
||
|
||
{ "block-global-block", 1, 0, 0, gdbscm_block_global_block,
|
||
"\
|
||
Return the global block of the block." },
|
||
|
||
{ "block-static-block", 1, 0, 0, gdbscm_block_static_block,
|
||
"\
|
||
Return the static block of the block." },
|
||
|
||
{ "block-global?", 1, 0, 0, gdbscm_block_global_p,
|
||
"\
|
||
Return #t if block is a global block." },
|
||
|
||
{ "block-static?", 1, 0, 0, gdbscm_block_static_p,
|
||
"\
|
||
Return #t if block is a static block." },
|
||
|
||
{ "block-symbols", 1, 0, 0, gdbscm_block_symbols,
|
||
"\
|
||
Return a list of all symbols (as <gdb:symbol> objects) in the block." },
|
||
|
||
{ "make-block-symbols-iterator", 1, 0, 0, gdbscm_make_block_syms_iter,
|
||
"\
|
||
Return a <gdb:iterator> object for iterating over all symbols in the block." },
|
||
|
||
{ "block-symbols-progress?", 1, 0, 0, bkscm_block_syms_progress_p,
|
||
"\
|
||
Return #t if the object is a <gdb:block-symbols-progress> object." },
|
||
|
||
{ "lookup-block", 1, 0, 0, gdbscm_lookup_block,
|
||
"\
|
||
Return the innermost GDB block containing the address or #f if none found.\n\
|
||
\n\
|
||
Arguments:\n\
|
||
address: the address to lookup" },
|
||
|
||
END_FUNCTIONS
|
||
};
|
||
|
||
void
|
||
gdbscm_initialize_blocks (void)
|
||
{
|
||
block_smob_tag
|
||
= gdbscm_make_smob_type (block_smob_name, sizeof (block_smob));
|
||
scm_set_smob_free (block_smob_tag, bkscm_free_block_smob);
|
||
scm_set_smob_print (block_smob_tag, bkscm_print_block_smob);
|
||
|
||
block_syms_progress_smob_tag
|
||
= gdbscm_make_smob_type (block_syms_progress_smob_name,
|
||
sizeof (block_syms_progress_smob));
|
||
scm_set_smob_print (block_syms_progress_smob_tag,
|
||
bkscm_print_block_syms_progress_smob);
|
||
|
||
gdbscm_define_functions (block_functions, 1);
|
||
|
||
/* This function is "private". */
|
||
bkscm_next_symbol_x_proc
|
||
= scm_c_define_gsubr ("%block-next-symbol!", 1, 0, 0,
|
||
gdbscm_block_next_symbol_x);
|
||
scm_set_procedure_property_x (bkscm_next_symbol_x_proc,
|
||
gdbscm_documentation_symbol,
|
||
gdbscm_scm_from_c_string ("\
|
||
Internal function to assist the block symbols iterator."));
|
||
|
||
/* Register an objfile "free" callback so we can properly
|
||
invalidate blocks when an object file is about to be deleted. */
|
||
bkscm_objfile_data_key
|
||
= register_objfile_data_with_cleanup (NULL, bkscm_del_objfile_blocks);
|
||
}
|