85 void die(struct pt_regs *regs, const char *str)  in die()  argument
98 	show_regs(regs);  in die()
99 	show_stack(current, (unsigned long *)regs->regs[4], KERN_INFO);  in die()
101 	ret = notify_die(DIE_OOPS, str, regs, 0, trap_no(regs), SIGSEGV);  in die()
116 void do_trap(struct pt_regs *regs, int signo, int code, unsigned long addr)  in do_trap()  argument
124 		print_vma_addr(KERN_CONT " in ", instruction_pointer(regs));  in do_trap()
126 		show_regs(regs);  in do_trap()
132 static void do_trap_error(struct pt_regs *regs, int signo, int code,  in do_trap_error()  argument
135 	current->thread.trap_no = trap_no(regs);  in do_trap_error()
137 	if (user_mode(regs)) {  in do_trap_error()
138 		do_trap(regs, signo, code, addr);  in do_trap_error()
140 		if (!fixup_exception(regs))  in do_trap_error()
141 			die(regs, str);  in do_trap_error()
146 asmlinkage __visible void name(struct pt_regs *regs)			\
148 	do_trap_error(regs, signo, code, regs->pc, "Oops - " str);	\
158 asmlinkage void do_trap_misaligned(struct pt_regs *regs)  in do_trap_misaligned()  argument
161 	csky_alignment(regs);  in do_trap_misaligned()
163 	current->thread.trap_no = trap_no(regs);  in do_trap_misaligned()
164 	do_trap_error(regs, SIGBUS, BUS_ADRALN, regs->pc,  in do_trap_misaligned()
169 asmlinkage void do_trap_bkpt(struct pt_regs *regs)  in do_trap_bkpt()  argument
172 	if (kprobe_single_step_handler(regs))  in do_trap_bkpt()
176 	if (uprobe_single_step_handler(regs))  in do_trap_bkpt()
179 	if (user_mode(regs)) {  in do_trap_bkpt()
184 	do_trap_error(regs, SIGILL, ILL_ILLTRP, regs->pc,  in do_trap_bkpt()
188 asmlinkage void do_trap_illinsn(struct pt_regs *regs)  in do_trap_illinsn()  argument
190 	current->thread.trap_no = trap_no(regs);  in do_trap_illinsn()
193 	if (kprobe_breakpoint_handler(regs))  in do_trap_illinsn()
197 	if (uprobe_breakpoint_handler(regs))  in do_trap_illinsn()
201 	if (*(uint16_t *)instruction_pointer(regs) != USR_BKPT) {  in do_trap_illinsn()
207 	do_trap_error(regs, SIGILL, ILL_ILLOPC, regs->pc,  in do_trap_illinsn()
211 asmlinkage void do_trap_fpe(struct pt_regs *regs)  in do_trap_fpe()  argument
214 	return fpu_fpe(regs);  in do_trap_fpe()
216 	do_trap_error(regs, SIGILL, ILL_ILLOPC, regs->pc,  in do_trap_fpe()
221 asmlinkage void do_trap_priv(struct pt_regs *regs)  in do_trap_priv()  argument
224 	if (user_mode(regs) && fpu_libc_helper(regs))  in do_trap_priv()
227 	do_trap_error(regs, SIGILL, ILL_PRVOPC, regs->pc,  in do_trap_priv()
231 asmlinkage void trap_c(struct pt_regs *regs)  in trap_c()  argument
233 	switch (trap_no(regs)) {  in trap_c()
235 		do_trap_zdiv(regs);  in trap_c()
238 		do_trap_bkpt(regs);  in trap_c()
241 		do_trap_illinsn(regs);  in trap_c()
245 		do_trap_bkpt(regs);  in trap_c()
248 		do_trap_buserr(regs);  in trap_c()
251 		do_trap_misaligned(regs);  in trap_c()
254 		do_trap_fpe(regs);  in trap_c()
257 		do_trap_priv(regs);  in trap_c()
260 		do_trap_unknown(regs);  in trap_c()