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view uprogs/initcode.S @ 0:c450faca55f4
Init
author | Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp> |
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date | Sun, 22 Oct 2017 18:25:39 +0900 |
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# Initial process execs /init. #include "syscall.h" #include "traps.h" # exec(init, argv) .globl start start: push {lr} ldr r0, =argv push {r0} ldr r0, =init push {r0} mov r0, #SYS_exec swi #T_SYSCALL pop {lr} pop {lr} pop {lr} bx lr # for(;;) exit(); exit: mov r11, #SYS_exit swi #T_SYSCALL bl exit # char init[] = "/init\0"; init: .string "/init\0" # char *argv[] = { init, 0 }; .p2align 2 argv: .long init .long 0