arch/nios2/include/asm/kgdb.h

Source file repositories/reference/linux-study-clean/arch/nios2/include/asm/kgdb.h

File Facts

System
Linux kernel
Corpus path
arch/nios2/include/asm/kgdb.h
Extension
.h
Size
1325 bytes
Lines
81
Domain
Architecture Layer
Bucket
arch/nios2
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _ASM_NIOS2_KGDB_H
#define _ASM_NIOS2_KGDB_H

#define CACHE_FLUSH_IS_SAFE	1
#define BUFMAX			2048

enum regnames {
	GDB_R0 = 0,
	GDB_AT,
	GDB_R2,
	GDB_R3,
	GDB_R4,
	GDB_R5,
	GDB_R6,
	GDB_R7,
	GDB_R8,
	GDB_R9,
	GDB_R10,
	GDB_R11,
	GDB_R12,
	GDB_R13,
	GDB_R14,
	GDB_R15,
	GDB_R16,
	GDB_R17,
	GDB_R18,
	GDB_R19,
	GDB_R20,
	GDB_R21,
	GDB_R22,
	GDB_R23,
	GDB_ET,
	GDB_BT,
	GDB_GP,
	GDB_SP,
	GDB_FP,
	GDB_EA,
	GDB_BA,
	GDB_RA,
	GDB_PC,
	GDB_STATUS,
	GDB_ESTATUS,
	GDB_BSTATUS,
	GDB_IENABLE,
	GDB_IPENDING,
	GDB_CPUID,
	GDB_CTL6,
	GDB_EXCEPTION,
	GDB_PTEADDR,
	GDB_TLBACC,
	GDB_TLBMISC,
	GDB_ECCINJ,
	GDB_BADADDR,
	GDB_CONFIG,
	GDB_MPUBASE,
	GDB_MPUACC,
	/* do not change the last entry or anything below! */
	GDB_NUMREGBYTES		/* number of registers */
};

#define GDB_SIZEOF_REG		sizeof(u32)
#define DBG_MAX_REG_NUM	(49)
#define NUMREGBYTES		(DBG_MAX_REG_NUM * sizeof(GDB_SIZEOF_REG))

#define BREAK_INSTR_SIZE	4
static inline void arch_kgdb_breakpoint(void)
{
	__asm__ __volatile__("trap 30\n");
}

#endif /* _ASM_NIOS2_KGDB_H */

Annotation

Implementation Notes