/* * linux/arch/h8300/kernel/ptrace_h8s.c * ptrace cpu depend helper functions * * Yoshinori Sato <ysato@users.sourceforge.jp> * * This file is subject to the terms and conditions of the GNU General * Public License. See the file COPYING in the main directory of * this archive for more details. */ #include <linux/linkage.h> #include <linux/sched/signal.h> #include <linux/errno.h> #include <asm/ptrace.h> #define CCR_MASK 0x6f #define EXR_TRACE 0x80 /* disable singlestep */ void user_disable_single_step(struct task_struct *child) { unsigned char exr; exr = h8300_get_reg(child, PT_EXR); exr &= ~EXR_TRACE; h8300_put_reg(child, PT_EXR, exr); } /* enable singlestep */ void user_enable_single_step(struct task_struct *child) { unsigned char exr; exr = h8300_get_reg(child, PT_EXR); exr |= EXR_TRACE; h8300_put_reg(child, PT_EXR, exr); } asmlinkage void trace_trap(unsigned long bp) { (void)bp; force_sig(SIGTRAP); }