38 			"	sub	sp, sp, #0xff\n"
42 			"	add	r3, sp, #0xff\n"
51 			 * SP % 8 != 0 (SP % 4 == 0 should be ensured),
80 			"1:	.long 0\n"
83 			"2:	.long 0\n"
117  * kprobe in the address range. So always return 0.
121 	return 0;  in arch_check_optimized_kprobe()
124 /* Caller must ensure addr & 3 == 0 */
127 	if (kp->ainsn.stack_space < 0)  in can_optimize()
128 		return 0;  in can_optimize()
134 		return 0;  in can_optimize()
157 	regs->ARM_ORIG_r0 = ~0UL;  in optimized_callback()
203 	 *   31  28 27           24 23             0  in NOKPROBE_SYMBOL()
205 	 *  | cond | 1 | 0 | 1 | 0 |      imm24     |  in NOKPROBE_SYMBOL()
212 	 *   (0x007fffff << 2) = 0x01fffffc =  0x1fffffc  in NOKPROBE_SYMBOL()
214 	 *   (0xff800000 << 2) = 0xfe000000 = -0x2000000  in NOKPROBE_SYMBOL()
216 	 * We can simply check (rel & 0xfe000003):  in NOKPROBE_SYMBOL()
217 	 *  if rel is positive, (rel & 0xfe000000) shoule be 0  in NOKPROBE_SYMBOL()
218 	 *  if rel is negitive, (rel & 0xfe000000) should be 0xfe000000  in NOKPROBE_SYMBOL()
222 			(long)orig->addr + 8) & 0xfe000003;  in NOKPROBE_SYMBOL()
224 	if ((rel_chk != 0) && (rel_chk != 0xfe000000)) {  in NOKPROBE_SYMBOL()
230 		free_optinsn_slot(code, 0);  in NOKPROBE_SYMBOL()
239 	BUG_ON(orig->ainsn.stack_space < 0);  in NOKPROBE_SYMBOL()
247 	code[TMPL_SUB_SP] = __opcode_to_mem_arm(0xe24dd000 | stack_protect);  in NOKPROBE_SYMBOL()
249 	code[TMPL_ADD_SP] = __opcode_to_mem_arm(0xe28d3000 | stack_protect);  in NOKPROBE_SYMBOL()
265 		if (final_branch != 0) {  in NOKPROBE_SYMBOL()
270 			code[TMPL_RESTORE_BEGIN] = __opcode_to_mem_arm(0xe89d7fff);  in NOKPROBE_SYMBOL()
286 	return 0;  in NOKPROBE_SYMBOL()
306 		BUG_ON(insn == 0);  in arch_optimize_kprobes()
313 			  op->optinsn.copied_insn[0]) & 0xf0000000) |  in arch_optimize_kprobes()
314 			(insn & 0x0fffffff);  in arch_optimize_kprobes()