cregit-Linux how code gets into the kernel

Release 4.14 arch/hexagon/kernel/vm_events.c

/*
 * Mostly IRQ support for Hexagon
 *
 * Copyright (c) 2010-2012, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

#include <linux/kernel.h>
#include <linux/sched/debug.h>
#include <asm/registers.h>
#include <linux/irq.h>
#include <linux/hardirq.h>

/*
 * show_regs - print pt_regs structure
 * @regs: pointer to pt_regs
 *
 * To-do:  add all the accessor definitions to registers.h
 *
 * Will make this routine a lot easier to write.
 */

void show_regs(struct pt_regs *regs) { show_regs_print_info(KERN_EMERG); printk(KERN_EMERG "restart_r0: \t0x%08lx syscall_nr: %ld\n", regs->restart_r0, regs->syscall_nr); printk(KERN_EMERG "preds: \t\t0x%08lx\n", regs->preds); printk(KERN_EMERG "lc0: \t0x%08lx sa0: 0x%08lx m0: 0x%08lx\n", regs->lc0, regs->sa0, regs->m0); printk(KERN_EMERG "lc1: \t0x%08lx sa1: 0x%08lx m1: 0x%08lx\n", regs->lc1, regs->sa1, regs->m1); printk(KERN_EMERG "gp: \t0x%08lx ugp: 0x%08lx usr: 0x%08lx\n", regs->gp, regs->ugp, regs->usr); printk(KERN_EMERG "cs0: \t0x%08lx cs1: 0x%08lx\n", regs->cs0, regs->cs1); printk(KERN_EMERG "r0: \t0x%08lx %08lx %08lx %08lx\n", regs->r00, regs->r01, regs->r02, regs->r03); printk(KERN_EMERG "r4: \t0x%08lx %08lx %08lx %08lx\n", regs->r04, regs->r05, regs->r06, regs->r07); printk(KERN_EMERG "r8: \t0x%08lx %08lx %08lx %08lx\n", regs->r08, regs->r09, regs->r10, regs->r11); printk(KERN_EMERG "r12: \t0x%08lx %08lx %08lx %08lx\n", regs->r12, regs->r13, regs->r14, regs->r15); printk(KERN_EMERG "r16: \t0x%08lx %08lx %08lx %08lx\n", regs->r16, regs->r17, regs->r18, regs->r19); printk(KERN_EMERG "r20: \t0x%08lx %08lx %08lx %08lx\n", regs->r20, regs->r21, regs->r22, regs->r23); printk(KERN_EMERG "r24: \t0x%08lx %08lx %08lx %08lx\n", regs->r24, regs->r25, regs->r26, regs->r27); printk(KERN_EMERG "r28: \t0x%08lx %08lx %08lx %08lx\n", regs->r28, regs->r29, regs->r30, regs->r31); printk(KERN_EMERG "elr: \t0x%08lx cause: 0x%08lx user_mode: %d\n", pt_elr(regs), pt_cause(regs), user_mode(regs)); printk(KERN_EMERG "psp: \t0x%08lx badva: 0x%08lx int_enabled: %d\n", pt_psp(regs), pt_badva(regs), ints_enabled(regs)); }

Contributors

PersonTokensPropCommitsCommitProp
Richard Kuo32098.46%266.67%
Tejun Heo51.54%133.33%
Total325100.00%3100.00%


void dummy_handler(struct pt_regs *regs) { unsigned int elr = pt_elr(regs); printk(KERN_ERR "Unimplemented handler; ELR=0x%08x\n", elr); }

Contributors

PersonTokensPropCommitsCommitProp
Richard Kuo27100.00%1100.00%
Total27100.00%1100.00%


void arch_do_IRQ(struct pt_regs *regs) { int irq = pt_cause(regs); struct pt_regs *old_regs = set_irq_regs(regs); irq_enter(); generic_handle_irq(irq); irq_exit(); set_irq_regs(old_regs); }

Contributors

PersonTokensPropCommitsCommitProp
Richard Kuo44100.00%1100.00%
Total44100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Richard Kuo40598.06%360.00%
Tejun Heo51.21%120.00%
Ingo Molnar30.73%120.00%
Total413100.00%5100.00%
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