X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/b26d3165c52589d1f8de37bf0df27ad96f460f47..1fe5f5eb5378a47bf0f3451762743c162e40faad:/lunaix-os/kernel/process/sched.c diff --git a/lunaix-os/kernel/process/sched.c b/lunaix-os/kernel/process/sched.c index ec5d6c0..651ab0e 100644 --- a/lunaix-os/kernel/process/sched.c +++ b/lunaix-os/kernel/process/sched.c @@ -1,8 +1,9 @@ #include #include +#include -#include #include +#include #include #include @@ -79,20 +80,8 @@ run(struct proc_info* proc) { proc->state = PS_RUNNING; - /* - 将tss.esp0设置为上次调度前的esp值。 - 当处理信号时,上下文信息是不会恢复的,而是保存在用户栈中,然后直接跳转进位于用户空间的sig_wrapper进行 - 信号的处理。当用户自定义的信号处理函数返回时,sigreturn的系统调用才开始进行上下文的恢复(或者说是进行 - 另一次调度。 - 由于这中间没有进行地址空间的交换,所以第二次跳转使用的是同一个内核栈,而之前默认tss.esp0的值是永远指向最顶部 - 这样一来就有可能会覆盖更早的上下文信息(比如嵌套的信号捕获函数) - */ - - apic_done_servicing(); - - asm volatile("pushl %0\n" - "jmp switch_to\n" ::"r"(proc) - : "memory"); // kernel/asm/x86/interrupt.S + intc_notify_eos(0); + switch_context(proc); } int @@ -221,6 +210,9 @@ __DEFINE_LXSYSCALL1(unsigned int, sleep, unsigned int, seconds) return 0; } +// FIXME issue with alarm, paused parent process never got wake up, check what +// has been fucked up by refactoring. + __DEFINE_LXSYSCALL1(unsigned int, alarm, unsigned int, seconds) { time_t prev_ddl = __current->sleep.alarm_time;