86 void die(struct pt_regs *regs, const char *str)  in die()  argument
99 	show_regs(regs);  in die()
100 	show_stack(current, (unsigned long *)regs->regs[4], KERN_INFO);  in die()
102 	ret = notify_die(DIE_OOPS, str, regs, 0, trap_no(regs), SIGSEGV);  in die()
117 void do_trap(struct pt_regs *regs, int signo, int code, unsigned long addr)  in do_trap()  argument
125 		print_vma_addr(KERN_CONT " in ", instruction_pointer(regs));  in do_trap()
127 		show_regs(regs);  in do_trap()
133 static void do_trap_error(struct pt_regs *regs, int signo, int code,  in do_trap_error()  argument
136 	current->thread.trap_no = trap_no(regs);  in do_trap_error()
138 	if (user_mode(regs)) {  in do_trap_error()
139 		do_trap(regs, signo, code, addr);  in do_trap_error()
141 		if (!fixup_exception(regs))  in do_trap_error()
142 			die(regs, str);  in do_trap_error()
147 asmlinkage __visible void name(struct pt_regs *regs)			\
149 	do_trap_error(regs, signo, code, regs->pc, "Oops - " str);	\
159 asmlinkage void do_trap_misaligned(struct pt_regs *regs)  in do_trap_misaligned()  argument
162 	csky_alignment(regs);  in do_trap_misaligned()
164 	current->thread.trap_no = trap_no(regs);  in do_trap_misaligned()
165 	do_trap_error(regs, SIGBUS, BUS_ADRALN, regs->pc,  in do_trap_misaligned()
170 asmlinkage void do_trap_bkpt(struct pt_regs *regs)  in do_trap_bkpt()  argument
173 	if (kprobe_single_step_handler(regs))  in do_trap_bkpt()
177 	if (uprobe_single_step_handler(regs))  in do_trap_bkpt()
180 	if (user_mode(regs)) {  in do_trap_bkpt()
185 	do_trap_error(regs, SIGILL, ILL_ILLTRP, regs->pc,  in do_trap_bkpt()
189 asmlinkage void do_trap_illinsn(struct pt_regs *regs)  in do_trap_illinsn()  argument
191 	current->thread.trap_no = trap_no(regs);  in do_trap_illinsn()
194 	if (kprobe_breakpoint_handler(regs))  in do_trap_illinsn()
198 	if (uprobe_breakpoint_handler(regs))  in do_trap_illinsn()
202 	if (*(uint16_t *)instruction_pointer(regs) != USR_BKPT) {  in do_trap_illinsn()
208 	do_trap_error(regs, SIGILL, ILL_ILLOPC, regs->pc,  in do_trap_illinsn()
212 asmlinkage void do_trap_fpe(struct pt_regs *regs)  in do_trap_fpe()  argument
215 	return fpu_fpe(regs);  in do_trap_fpe()
217 	do_trap_error(regs, SIGILL, ILL_ILLOPC, regs->pc,  in do_trap_fpe()
222 asmlinkage void do_trap_priv(struct pt_regs *regs)  in do_trap_priv()  argument
225 	if (user_mode(regs) && fpu_libc_helper(regs))  in do_trap_priv()
228 	do_trap_error(regs, SIGILL, ILL_PRVOPC, regs->pc,  in do_trap_priv()
232 asmlinkage void trap_c(struct pt_regs *regs)  in trap_c()  argument
234 	switch (trap_no(regs)) {  in trap_c()
236 		do_trap_zdiv(regs);  in trap_c()
239 		do_trap_bkpt(regs);  in trap_c()
242 		do_trap_illinsn(regs);  in trap_c()
246 		do_trap_bkpt(regs);  in trap_c()
249 		do_trap_buserr(regs);  in trap_c()
252 		do_trap_misaligned(regs);  in trap_c()
255 		do_trap_fpe(regs);  in trap_c()
258 		do_trap_priv(regs);  in trap_c()
261 		do_trap_unknown(regs);  in trap_c()