mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-11-25 13:09:48 +00:00
86 lines
3.1 KiB
C
86 lines
3.1 KiB
C
/* Support for dumping and reloading various pieces of GDB's internal state.
|
|
Copyright 1992 Free Software Foundation, Inc.
|
|
Contributed by Cygnus Support, using pieces from other GDB modules.
|
|
|
|
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|
|
|
/* This file provides definitions used for reading and writing gdb
|
|
state files. State files have a fairly simple form which is intended
|
|
to be easily extensible. See state.c for further documentation. */
|
|
|
|
#if !defined (_STATE_H)
|
|
#define _STATE_H
|
|
|
|
/* State file-header */
|
|
|
|
typedef struct {
|
|
unsigned char sf_mag0; /* Magic number byte 0 */
|
|
unsigned char sf_mag1; /* Magic number byte 1 */
|
|
unsigned char sf_mag2; /* Magic number byte 2 */
|
|
unsigned char sf_mag3; /* Magic number byte 3 */
|
|
unsigned long sf_ftoff; /* File offset to start of form-tree */
|
|
unsigned long sf_ftsize; /* Size of the form-tree, in bytes */
|
|
} sf_hdr;
|
|
|
|
|
|
#define SF_MAG0 'g' /* Magic number byte 0 value */
|
|
#define SF_MAG1 'd' /* Magic number byte 1 value */
|
|
#define SF_MAG2 'b' /* Magic number byte 2 value */
|
|
#define SF_MAG3 '\000' /* Magic number byte 3 value */
|
|
|
|
#define SF_GOOD_MAGIC(asfd) ((asfd) -> hdr.sf_mag0 == SF_MAG0 && \
|
|
(asfd) -> hdr.sf_mag1 == SF_MAG1 && \
|
|
(asfd) -> hdr.sf_mag2 == SF_MAG2 && \
|
|
(asfd) -> hdr.sf_mag3 == SF_MAG3)
|
|
|
|
/* The internal form-tree is formed from nodes that contain pointers
|
|
to the first sibling, the first child, a backpointer to the parent,
|
|
and a pointer to the actual data for the node. This allows all
|
|
tree nodes to have the same sized structure, but support variable
|
|
numbers of child nodes per parent node. The backpointer for the
|
|
parent is required for simplier tree walks. */
|
|
|
|
struct formnode
|
|
{
|
|
struct formnode *sibling; /* Pointer to first sibling */
|
|
struct formnode *child; /* Pointer to first child */
|
|
struct formnode *parent; /* Backpointer to parent */
|
|
char *nodedata; /* Pointer to the nodes data */
|
|
unsigned long treesize; /* Size of subtree rooted here */
|
|
};
|
|
|
|
/* A state file descriptor is defined by the following structure. */
|
|
|
|
typedef struct
|
|
{
|
|
char *filename; /* Full pathname of the state file */
|
|
FILE *fp; /* Open file pointer for the state file */
|
|
sf_hdr hdr; /* Copy of the state file-header */
|
|
char *formtree; /* Pointer to in-memory copy of form-tree */
|
|
} sfd;
|
|
|
|
extern sfd *
|
|
sfd_fopen PARAMS ((char *, char *));
|
|
|
|
extern void
|
|
sfd_fclose PARAMS ((sfd *));
|
|
|
|
extern struct objfile *
|
|
objfile_from_statefile PARAMS ((sfd *));
|
|
|
|
#endif /* !defined (_STATE_H) */
|