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extdebug.h
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1993-08-15
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/* This is file EXTDEBUG.H */
/*
** Copyright (C) 1993 DJ Delorie, 24 Kirsten Ave, Rochester NH 03867-2954
**
** This file is distributed under the terms listed in the document
** "copying.dj", available from DJ Delorie at the address above.
** A copy of "copying.dj" should accompany this file; if not, a copy
** should be available from where this file was obtained. This file
** may not be distributed without a verbatim copy of "copying.dj".
**
** This file is distributed WITHOUT ANY WARRANTY; without even the implied
** warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef _EXTDEBUG_H_
#define _EXTDEBUG_H_
/* This file defines the interface that go32 exports to external debuggers */
typedef struct {
word16 version; /* set to version number of interface */
word16 a_tss_ofs; /* pointer to TSS for debugged program */
word16 a_tss_seg;
word16 filename_ofs; /* points to name of file being debugged */
word16 filename_seg;
word16 filename_len;
word16 areas_ofs; /* from paging.c */
word16 areas_seg;
/* 4-byte align required here */
word32 app_base; /* linear base address of application */
word32 dr[8]; /* debug registers, set when a_tss runs */
word32 ansi_mode; /* if set, OK to emit ansi control codes */
} ExternalDebuggerInfo;
#define EXTERNAL_DEBUGGER_VERSION 1 /* this is version 1 */
/* These codes are passed in %al when %ah == 0xfe for int 0x21 */
#define EXTERNAL_DEBUGGER_EXECUTE 0 /* runs a_tss until stop */
#define EXTERNAL_DEBUGGER_GETINFOPTR 1 /* returns seg:ofs of info struct in edx:eax */
#ifndef __GO32__ /* These are internal to go32 */
extern int using_external_debugger;
extern void load_external_debugger(char *filename, char *running_fname, char *argv0);
extern int external_debugger_handler(void);
extern word16 external_debugger_cs;
extern word16 external_debugger_ds;
void set_break_DPMI(void);
void clear_break_DPMI(void);
#endif
#endif