84 void die(struct pt_regs *regs, const char *str)  in die()  argument
97 	show_regs(regs);  in die()
98 	show_stack(current, (unsigned long *)regs->regs[4], KERN_INFO);  in die()
100 	ret = notify_die(DIE_OOPS, str, regs, 0, trap_no(regs), SIGSEGV);  in die()
115 void do_trap(struct pt_regs *regs, int signo, int code, unsigned long addr)  in do_trap()  argument
123 		print_vma_addr(KERN_CONT " in ", instruction_pointer(regs));  in do_trap()
125 		show_regs(regs);  in do_trap()
131 static void do_trap_error(struct pt_regs *regs, int signo, int code,  in do_trap_error()  argument
134 	current->thread.trap_no = trap_no(regs);  in do_trap_error()
136 	if (user_mode(regs)) {  in do_trap_error()
137 		do_trap(regs, signo, code, addr);  in do_trap_error()
139 		if (!fixup_exception(regs))  in do_trap_error()
140 			die(regs, str);  in do_trap_error()
145 asmlinkage __visible void name(struct pt_regs *regs)			\
147 	do_trap_error(regs, signo, code, regs->pc, "Oops - " str);	\
157 asmlinkage void do_trap_misaligned(struct pt_regs *regs)  in do_trap_misaligned()  argument
160 	csky_alignment(regs);  in do_trap_misaligned()
162 	current->thread.trap_no = trap_no(regs);  in do_trap_misaligned()
163 	do_trap_error(regs, SIGBUS, BUS_ADRALN, regs->pc,  in do_trap_misaligned()
168 asmlinkage void do_trap_bkpt(struct pt_regs *regs)  in do_trap_bkpt()  argument
171 	if (kprobe_single_step_handler(regs))  in do_trap_bkpt()
175 	if (uprobe_single_step_handler(regs))  in do_trap_bkpt()
178 	if (user_mode(regs)) {  in do_trap_bkpt()
183 	do_trap_error(regs, SIGILL, ILL_ILLTRP, regs->pc,  in do_trap_bkpt()
187 asmlinkage void do_trap_illinsn(struct pt_regs *regs)  in do_trap_illinsn()  argument
189 	current->thread.trap_no = trap_no(regs);  in do_trap_illinsn()
192 	if (kprobe_breakpoint_handler(regs))  in do_trap_illinsn()
196 	if (uprobe_breakpoint_handler(regs))  in do_trap_illinsn()
200 	if (*(uint16_t *)instruction_pointer(regs) != USR_BKPT) {  in do_trap_illinsn()
206 	do_trap_error(regs, SIGILL, ILL_ILLOPC, regs->pc,  in do_trap_illinsn()
210 asmlinkage void do_trap_fpe(struct pt_regs *regs)  in do_trap_fpe()  argument
213 	return fpu_fpe(regs);  in do_trap_fpe()
215 	do_trap_error(regs, SIGILL, ILL_ILLOPC, regs->pc,  in do_trap_fpe()
220 asmlinkage void do_trap_priv(struct pt_regs *regs)  in do_trap_priv()  argument
223 	if (user_mode(regs) && fpu_libc_helper(regs))  in do_trap_priv()
226 	do_trap_error(regs, SIGILL, ILL_PRVOPC, regs->pc,  in do_trap_priv()
230 asmlinkage void trap_c(struct pt_regs *regs)  in trap_c()  argument
232 	switch (trap_no(regs)) {  in trap_c()
234 		do_trap_zdiv(regs);  in trap_c()
237 		do_trap_bkpt(regs);  in trap_c()
240 		do_trap_illinsn(regs);  in trap_c()
244 		do_trap_bkpt(regs);  in trap_c()
247 		do_trap_buserr(regs);  in trap_c()
250 		do_trap_misaligned(regs);  in trap_c()
253 		do_trap_fpe(regs);  in trap_c()
256 		do_trap_priv(regs);  in trap_c()
259 		do_trap_unknown(regs);  in trap_c()