arch/mips/kernel/asm-offsets.c

Source file repositories/reference/linux-study-clean/arch/mips/kernel/asm-offsets.c

File Facts

System
Linux kernel
Corpus path
arch/mips/kernel/asm-offsets.c
Extension
.c
Size
14276 bytes
Lines
428
Domain
Architecture Layer
Bucket
arch/mips
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

// SPDX-License-Identifier: GPL-2.0
/*
 * asm-offsets.c: Calculate pt_regs and task_struct offsets.
 *
 * Copyright (C) 1996 David S. Miller
 * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Ralf Baechle
 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
 *
 * Kevin Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
 * Copyright (C) 2000 MIPS Technologies, Inc.
 */
#define COMPILE_OFFSETS

#include <linux/compat.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/kbuild.h>
#include <linux/suspend.h>
#include <asm/cpu-info.h>
#include <asm/pm.h>
#include <asm/ptrace.h>
#include <asm/processor.h>
#include <asm/smp-cps.h>

#include <linux/kvm_host.h>

void output_ptreg_defines(void);
void output_ptreg_defines(void)
{
	COMMENT("MIPS pt_regs offsets.");
#ifdef CONFIG_32BIT
	OFFSET(PT_ARG4, pt_regs, args[4]);
	OFFSET(PT_ARG5, pt_regs, args[5]);
	OFFSET(PT_ARG6, pt_regs, args[6]);
	OFFSET(PT_ARG7, pt_regs, args[7]);
#endif
	OFFSET(PT_R0, pt_regs, regs[0]);
	OFFSET(PT_R1, pt_regs, regs[1]);
	OFFSET(PT_R2, pt_regs, regs[2]);
	OFFSET(PT_R3, pt_regs, regs[3]);
	OFFSET(PT_R4, pt_regs, regs[4]);
	OFFSET(PT_R5, pt_regs, regs[5]);
	OFFSET(PT_R6, pt_regs, regs[6]);
	OFFSET(PT_R7, pt_regs, regs[7]);
	OFFSET(PT_R8, pt_regs, regs[8]);
	OFFSET(PT_R9, pt_regs, regs[9]);
	OFFSET(PT_R10, pt_regs, regs[10]);
	OFFSET(PT_R11, pt_regs, regs[11]);
	OFFSET(PT_R12, pt_regs, regs[12]);
	OFFSET(PT_R13, pt_regs, regs[13]);
	OFFSET(PT_R14, pt_regs, regs[14]);
	OFFSET(PT_R15, pt_regs, regs[15]);
	OFFSET(PT_R16, pt_regs, regs[16]);
	OFFSET(PT_R17, pt_regs, regs[17]);
	OFFSET(PT_R18, pt_regs, regs[18]);
	OFFSET(PT_R19, pt_regs, regs[19]);
	OFFSET(PT_R20, pt_regs, regs[20]);
	OFFSET(PT_R21, pt_regs, regs[21]);
	OFFSET(PT_R22, pt_regs, regs[22]);
	OFFSET(PT_R23, pt_regs, regs[23]);
	OFFSET(PT_R24, pt_regs, regs[24]);
	OFFSET(PT_R25, pt_regs, regs[25]);
	OFFSET(PT_R26, pt_regs, regs[26]);
	OFFSET(PT_R27, pt_regs, regs[27]);
	OFFSET(PT_R28, pt_regs, regs[28]);
	OFFSET(PT_R29, pt_regs, regs[29]);
	OFFSET(PT_R30, pt_regs, regs[30]);
	OFFSET(PT_R31, pt_regs, regs[31]);
	OFFSET(PT_LO, pt_regs, lo);
	OFFSET(PT_HI, pt_regs, hi);
#ifdef CONFIG_CPU_HAS_SMARTMIPS
	OFFSET(PT_ACX, pt_regs, acx);
#endif
	OFFSET(PT_EPC, pt_regs, cp0_epc);
	OFFSET(PT_BVADDR, pt_regs, cp0_badvaddr);
	OFFSET(PT_STATUS, pt_regs, cp0_status);
	OFFSET(PT_CAUSE, pt_regs, cp0_cause);
#ifdef CONFIG_CPU_CAVIUM_OCTEON
	OFFSET(PT_MPL, pt_regs, mpl);
	OFFSET(PT_MTP, pt_regs, mtp);
#endif /* CONFIG_CPU_CAVIUM_OCTEON */
	DEFINE(PT_SIZE, sizeof(struct pt_regs));
	BLANK();
}

void output_task_defines(void);
void output_task_defines(void)
{
	COMMENT("MIPS task_struct offsets.");

Annotation

Implementation Notes