sigsetjmp asm for mips

src/signal/mips/sigsetjmp.s

+.set noreorder
+
+.global sigsetjmp
+.type sigsetjmp,@function
+sigsetjmp:
+	lui $gp, %hi(_gp_disp)
+	addiu $gp, %lo(_gp_disp)
+	beq $5, $0, 1f
+	addu $gp, $gp, $25
+	subu $sp, $sp, 32
+	sw $4, 20($sp)
+	sw $ra, 24($sp)
+	sw $gp, 28($sp)
+	addu $6, $4, 124
+	li $5, 0
+	li $4, 1
+	sw $4, -4($6)
+	lw $25, %call16(sigprocmask)($gp)
+	jalr $25
+	nop
+	lw $gp, 28($sp)
+	lw $ra, 24($sp)
+	lw $4, 20($sp)
+	addu $sp, $sp, 32
+1:	lw $25, %call16(setjmp)($gp)
+	jr $25
+	nop