mirror of
https://github.com/torvalds/linux.git
synced 2024-12-26 12:52:30 +00:00
ebc0c74e76
Order of registers has changed in GDB moving from 6.8 to 7.5. This patch updates KGDB to work properly with GDB 7.5, though makes it incompatible with 6.8. Signed-off-by: Anton Kolesov <Anton.Kolesov@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: <stable@vger.kernel.org> #3.10, 3.12, 3.14, 3.16
64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
/*
|
|
* kgdb support for ARC
|
|
*
|
|
* Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef __ARC_KGDB_H__
|
|
#define __ARC_KGDB_H__
|
|
|
|
#ifdef CONFIG_KGDB
|
|
|
|
#include <asm/ptrace.h>
|
|
|
|
/* to ensure compatibility with Linux 2.6.35, we don't implement the get/set
|
|
* register API yet */
|
|
#undef DBG_MAX_REG_NUM
|
|
|
|
#define GDB_MAX_REGS 87
|
|
|
|
#define BREAK_INSTR_SIZE 2
|
|
#define CACHE_FLUSH_IS_SAFE 1
|
|
#define NUMREGBYTES (GDB_MAX_REGS * 4)
|
|
#define BUFMAX 2048
|
|
|
|
static inline void arch_kgdb_breakpoint(void)
|
|
{
|
|
__asm__ __volatile__ ("trap_s 0x4\n");
|
|
}
|
|
|
|
extern void kgdb_trap(struct pt_regs *regs);
|
|
|
|
/* This is the numbering of registers according to the GDB. See GDB's
|
|
* arc-tdep.h for details.
|
|
*
|
|
* Registers are ordered for GDB 7.5. It is incompatible with GDB 6.8. */
|
|
enum arc_linux_regnums {
|
|
_R0 = 0,
|
|
_R1, _R2, _R3, _R4, _R5, _R6, _R7, _R8, _R9, _R10, _R11, _R12, _R13,
|
|
_R14, _R15, _R16, _R17, _R18, _R19, _R20, _R21, _R22, _R23, _R24,
|
|
_R25, _R26,
|
|
_FP = 27,
|
|
__SP = 28,
|
|
_R30 = 30,
|
|
_BLINK = 31,
|
|
_LP_COUNT = 60,
|
|
_STOP_PC = 64,
|
|
_RET = 64,
|
|
_LP_START = 65,
|
|
_LP_END = 66,
|
|
_STATUS32 = 67,
|
|
_ECR = 76,
|
|
_BTA = 82,
|
|
};
|
|
|
|
#else
|
|
#define kgdb_trap(regs)
|
|
#endif
|
|
|
|
#endif /* __ARC_KGDB_H__ */
|