1#include "mmu.h" 2 3 # vectors.S sends all traps here. 4.globl alltraps 5alltraps: 6 # Build trap frame. 7 pushl %ds 8 pushl %es 9 pushl %fs 10 pushl %gs 11 pushal 12 13 # Set up data and per-cpu segments. 14 movw $(SEG_KDATA<<3), %ax 15 movw %ax, %ds 16 movw %ax, %es 17 18 # Call trap(tf), where tf=%esp 19 pushl %esp 20 call trap 21 addl $4, %esp 22 23 # Return falls through to trapret... 24.globl trapret 25trapret: 26 popal 27 popl %gs 28 popl %fs 29 popl %es 30 popl %ds 31 addl $0x8, %esp # trapno and errcode 32 iret 33