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[gdb] Allow CPU architectures to omit support for GDB

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Move the <gdbmach.h> file to <bits/gdbmach.h>, and provide a common
dummy implementation for all architectures that have not yet
implemented support for GDB.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown 2024-09-04 13:29:30 +01:00
parent 804f35cb5a
commit 2b82007571
8 changed files with 7 additions and 99 deletions
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45
src/arch/arm64/include/gdbmach.h
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@ -1,45 +0,0 @@
#ifndef GDBMACH_H
#define GDBMACH_H
/** @file
*
* GDB architecture specifics
*
* This file declares functions for manipulating the machine state and
* debugging context.
*
*/
#include <stdint.h>
typedef unsigned long gdbreg_t;
/* Register snapshot */
enum {
/* Not yet implemented */
GDBMACH_NREGS,
};
#define GDBMACH_SIZEOF_REGS ( GDBMACH_NREGS * sizeof ( gdbreg_t ) )
static inline void gdbmach_set_pc ( gdbreg_t *regs, gdbreg_t pc ) {
/* Not yet implemented */
( void ) regs;
( void ) pc;
}
static inline void gdbmach_set_single_step ( gdbreg_t *regs, int step ) {
/* Not yet implemented */
( void ) regs;
( void ) step;
}
static inline void gdbmach_breakpoint ( void ) {
/* Not yet implemented */
}
extern int gdbmach_set_breakpoint ( int type, unsigned long addr, size_t len,
int enable );
extern void gdbmach_init ( void );
#endif /* GDBMACH_H */

0
src/arch/i386/include/gdbmach.h → src/arch/i386/include/bits/gdbmach.h
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45
src/arch/loong64/include/gdbmach.h
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@ -1,45 +0,0 @@
#ifndef GDBMACH_H
#define GDBMACH_H
/** @file
*
* GDB architecture specifics
*
* This file declares functions for manipulating the machine state and
* debugging context.
*
*/
#include <stdint.h>
typedef unsigned long gdbreg_t;
/* Register snapshot */
enum {
/* Not yet implemented */
GDBMACH_NREGS,
};
#define GDBMACH_SIZEOF_REGS ( GDBMACH_NREGS * sizeof ( gdbreg_t ) )
static inline void gdbmach_set_pc ( gdbreg_t *regs, gdbreg_t pc ) {
/* Not yet implemented */
( void ) regs;
( void ) pc;
}
static inline void gdbmach_set_single_step ( gdbreg_t *regs, int step ) {
/* Not yet implemented */
( void ) regs;
( void ) step;
}
static inline void gdbmach_breakpoint ( void ) {
/* Not yet implemented */
}
extern int gdbmach_set_breakpoint ( int type, unsigned long addr, size_t len,
int enable );
extern void gdbmach_init ( void );
#endif /* GDBMACH_H */

1
src/arch/x86/core/gdbmach.c
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@ -31,7 +31,6 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <ipxe/uaccess.h>
#include <ipxe/gdbstub.h>
#include <librm.h>
#include <gdbmach.h>
/** @file
*

0
src/arch/x86_64/include/gdbmach.h → src/arch/x86_64/include/bits/gdbmach.h
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1
src/core/gdbstub.c
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@ -36,7 +36,6 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <ctype.h>
#include <byteswap.h>
#include <ipxe/gdbstub.h>
#include "gdbmach.h"
enum {
POSIX_EINVAL = 0x1c, /* used to report bad arguments to GDB */

12
src/arch/arm32/include/gdbmach.h → src/include/bits/gdbmach.h
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@ -1,12 +1,12 @@
#ifndef GDBMACH_H
#define GDBMACH_H
#ifndef _BITS_GDBMACH_H
#define _BITS_GDBMACH_H
/** @file
*
* GDB architecture specifics
* Dummy GDB architecture specifics
*
* This file declares functions for manipulating the machine state and
* debugging context.
* This file is included only if the architecture does not provide its
* own version of this file.
*
*/
@ -42,4 +42,4 @@ extern int gdbmach_set_breakpoint ( int type, unsigned long addr, size_t len,
int enable );
extern void gdbmach_init ( void );
#endif /* GDBMACH_H */
#endif /* _BITS_GDBMACH_H */

2
src/include/ipxe/gdbstub.h
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@ -11,7 +11,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <stdint.h>
#include <ipxe/tables.h>
#include <gdbmach.h>
#include <bits/gdbmach.h>
/**
* A transport mechanism for the GDB protocol