内核的汇编代码，头都大了。

__kernel_execve:
ldgp $29,0($27) /* we can be called from modules.  */
subq $30,16,$30
.frame $30,16,$26,0
stq $26,0($30)
stq $19,8($30)
.prologue 1
jsr $26,do_execve
bne $0,1f /* error! */
ldq $30,8($30)
br $31,ret_from_sys_call
1: ldq $26,0($30)
addq $30,16,$30
ret
.end __kernel_execve
什么意思呀。