kgdb.c File Reference

#include <linux/kgdb.h>
#include <linux/kdebug.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <asm/cacheflush.h>
#include <asm/traps.h>

Go to the source code of this file.

Macros
#define	OPCODE_BT(op)   (((op) & 0xff00) == 0x8900)
#define	OPCODE_BF(op)   (((op) & 0xff00) == 0x8b00)
#define	OPCODE_BTF_DISP(op)
#define	OPCODE_BFS(op)   (((op) & 0xff00) == 0x8f00)
#define	OPCODE_BTS(op)   (((op) & 0xff00) == 0x8d00)
#define	OPCODE_BRA(op)   (((op) & 0xf000) == 0xa000)
#define	OPCODE_BRA_DISP(op)
#define	OPCODE_BRAF(op)   (((op) & 0xf0ff) == 0x0023)
#define	OPCODE_BRAF_REG(op)   (((op) & 0x0f00) >> 8)
#define	OPCODE_BSR(op)   (((op) & 0xf000) == 0xb000)
#define	OPCODE_BSR_DISP(op)
#define	OPCODE_BSRF(op)   (((op) & 0xf0ff) == 0x0003)
#define	OPCODE_BSRF_REG(op)   (((op) >> 8) & 0xf)
#define	OPCODE_JMP(op)   (((op) & 0xf0ff) == 0x402b)
#define	OPCODE_JMP_REG(op)   (((op) >> 8) & 0xf)
#define	OPCODE_JSR(op)   (((op) & 0xf0ff) == 0x400b)
#define	OPCODE_JSR_REG(op)   (((op) >> 8) & 0xf)
#define	OPCODE_RTS(op)   ((op) == 0xb)
#define	OPCODE_RTE(op)   ((op) == 0x2b)
#define	SR_T_BIT_MASK   0x1
#define	STEP_OPCODE   0xc33d

Functions
int	dbg_set_reg (int regno, void *mem, struct pt_regs *regs)
char *	dbg_get_reg (int regno, void *mem, struct pt_regs *regs)
void	sleeping_thread_to_gdb_regs (unsigned long *gdb_regs, struct task_struct *p)
int	kgdb_arch_handle_exception (int e_vector, int signo, int err_code, char *remcomInBuffer, char *remcomOutBuffer, struct pt_regs *linux_regs)
unsigned long	kgdb_arch_pc (int exception, struct pt_regs *regs)
void	kgdb_arch_set_pc (struct pt_regs *regs, unsigned long ip)
	BUILD_TRAP_HANDLER (singlestep)
void	kgdb_roundup_cpus (unsigned long flags)
int	kgdb_arch_init (void)
void	kgdb_arch_exit (void)

Variables
struct dbg_reg_def_t	dbg_reg_def [DBG_MAX_REG_NUM]
struct kgdb_arch	arch_kgdb_ops

Macro Definition Documentation

#define OPCODE_BF

(

op

)

(((op) & 0xff00) == 0x8b00)

Definition at line 21 of file kgdb.c.

#define OPCODE_BFS

(

op

)

(((op) & 0xff00) == 0x8f00)

Definition at line 24 of file kgdb.c.

#define OPCODE_BRA

(

op

)

(((op) & 0xf000) == 0xa000)

Definition at line 26 of file kgdb.c.

#define OPCODE_BRA_DISP

(

op

)

Value:

(((op) & 0x800) ? (((op) | 0xfffff800) << 1) : \
                 (((op) & 0x7ff) << 1))

Definition at line 27 of file kgdb.c.

#define OPCODE_BRAF

(

op

)

(((op) & 0xf0ff) == 0x0023)

Definition at line 29 of file kgdb.c.

#define OPCODE_BRAF_REG

(

op

)

(((op) & 0x0f00) >> 8)

Definition at line 30 of file kgdb.c.

#define OPCODE_BSR

(

op

)

(((op) & 0xf000) == 0xb000)

Definition at line 31 of file kgdb.c.

#define OPCODE_BSR_DISP

(

op

)

Value:

(((op) & 0x800) ? (((op) | 0xfffff800) << 1) : \
                 (((op) & 0x7ff) << 1))

Definition at line 32 of file kgdb.c.

#define OPCODE_BSRF

(

op

)

(((op) & 0xf0ff) == 0x0003)

Definition at line 34 of file kgdb.c.

#define OPCODE_BSRF_REG

(

op

)

(((op) >> 8) & 0xf)

Definition at line 35 of file kgdb.c.

#define OPCODE_BT

(

op

)

(((op) & 0xff00) == 0x8900)

Definition at line 20 of file kgdb.c.

#define OPCODE_BTF_DISP

(

op

)

Value:

(((op) & 0x80) ? (((op) | 0xffffff80) << 1) : \
                 (((op) & 0x7f ) << 1))

Definition at line 22 of file kgdb.c.

#define OPCODE_BTS

(

op

)

(((op) & 0xff00) == 0x8d00)

Definition at line 25 of file kgdb.c.

#define OPCODE_JMP

(

op

)

(((op) & 0xf0ff) == 0x402b)

Definition at line 36 of file kgdb.c.

#define OPCODE_JMP_REG

(

op

)

(((op) >> 8) & 0xf)

Definition at line 37 of file kgdb.c.

#define OPCODE_JSR

(

op

)

(((op) & 0xf0ff) == 0x400b)

Definition at line 38 of file kgdb.c.

#define OPCODE_JSR_REG

(

op

)

(((op) >> 8) & 0xf)

Definition at line 39 of file kgdb.c.

#define OPCODE_RTE

(

op

)

((op) == 0x2b)

Definition at line 41 of file kgdb.c.

#define OPCODE_RTS

(

op

)

((op) == 0xb)

Definition at line 40 of file kgdb.c.

#define SR_T_BIT_MASK   0x1

Definition at line 43 of file kgdb.c.

#define STEP_OPCODE   0xc33d

Definition at line 44 of file kgdb.c.

Function Documentation

BUILD_TRAP_HANDLER

(

singlestep

)

Definition at line 303 of file kgdb.c.

char* dbg_get_reg	(	int	regno,
		void *	mem,
		struct pt_regs *	regs
	)

Definition at line 205 of file kgdb.c.

int dbg_set_reg	(	int	regno,
		void *	mem,
		struct pt_regs *	regs
	)

Definition at line 193 of file kgdb.c.

void kgdb_arch_exit

(

void

)

Definition at line 377 of file kgdb.c.

int kgdb_arch_handle_exception	(	int	e_vector,
		int	signo,
		int	err_code,
		char *	remcomInBuffer,
		char *	remcomOutBuffer,
		struct pt_regs *	linux_regs
	)

Definition at line 252 of file kgdb.c.

int kgdb_arch_init

(

void

)

Definition at line 372 of file kgdb.c.

unsigned long kgdb_arch_pc	(	int	exception,
		struct pt_regs *	regs
	)

Definition at line 288 of file kgdb.c.

void kgdb_arch_set_pc	(	struct pt_regs *	regs,
		unsigned long	ip
	)

Definition at line 295 of file kgdb.c.

void kgdb_roundup_cpus

(

unsigned long

flags

)

Definition at line 319 of file kgdb.c.

void sleeping_thread_to_gdb_regs	(	unsigned long *	gdb_regs,
		struct task_struct *	p
	)

Definition at line 223 of file kgdb.c.

Variable Documentation

struct kgdb_arch arch_kgdb_ops

Initial value:

= {
    



    .gdb_bpt_instr      = { 0xc3, 0x3c },

}

Definition at line 382 of file kgdb.c.

struct dbg_reg_def_t dbg_reg_def[DBG_MAX_REG_NUM]

Initial value:

= {
    { "r0",     GDB_SIZEOF_REG, offsetof(struct pt_regs, regs[0]) },
    { "r1",     GDB_SIZEOF_REG, offsetof(struct pt_regs, regs[1]) },
    { "r2",     GDB_SIZEOF_REG, offsetof(struct pt_regs, regs[2]) },
    { "r3",     GDB_SIZEOF_REG, offsetof(struct pt_regs, regs[3]) },
    { "r4",     GDB_SIZEOF_REG, offsetof(struct pt_regs, regs[4]) },
    { "r5",     GDB_SIZEOF_REG, offsetof(struct pt_regs, regs[5]) },
    { "r6",     GDB_SIZEOF_REG, offsetof(struct pt_regs, regs[6]) },
    { "r7",     GDB_SIZEOF_REG, offsetof(struct pt_regs, regs[7]) },
    { "r8",     GDB_SIZEOF_REG, offsetof(struct pt_regs, regs[8]) },
    { "r9",     GDB_SIZEOF_REG, offsetof(struct pt_regs, regs[9]) },
    { "r10",    GDB_SIZEOF_REG, offsetof(struct pt_regs, regs[10]) },
    { "r11",    GDB_SIZEOF_REG, offsetof(struct pt_regs, regs[11]) },
    { "r12",    GDB_SIZEOF_REG, offsetof(struct pt_regs, regs[12]) },
    { "r13",    GDB_SIZEOF_REG, offsetof(struct pt_regs, regs[13]) },
    { "r14",    GDB_SIZEOF_REG, offsetof(struct pt_regs, regs[14]) },
    { "r15",    GDB_SIZEOF_REG, offsetof(struct pt_regs, regs[15]) },
    { "pc",     GDB_SIZEOF_REG, offsetof(struct pt_regs, pc) },
    { "pr",     GDB_SIZEOF_REG, offsetof(struct pt_regs, pr) },
    { "sr",     GDB_SIZEOF_REG, offsetof(struct pt_regs, sr) },
    { "gbr",    GDB_SIZEOF_REG, offsetof(struct pt_regs, gbr) },
    { "mach",   GDB_SIZEOF_REG, offsetof(struct pt_regs, mach) },
    { "macl",   GDB_SIZEOF_REG, offsetof(struct pt_regs, macl) },
    { "vbr",    GDB_SIZEOF_REG, -1 },
}

Definition at line 167 of file kgdb.c.