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fork(): preliminary version (no wait()/waitpid() support yet)

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Balazs Gerofi bgerofi@riken.jp
2014-04-02 14:07:38 +09:00
parent 391b69e8c4
commit cf442e6a14
7 changed files with 321 additions and 42 deletions
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9
executer/kernel/syscall.c
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@ -1126,10 +1126,11 @@ static void clear_pte_range(uintptr_t start, uintptr_t len)
}
if (addr < end) {
zap_vma_ptes(vma, addr, end-addr);
dprintk("clear_pte_range() 0x%lx - 0x%lx OK\n",
vma->vm_start, vma->vm_end);
}
addr = end;
}
up_read(&mm->mmap_sem);
return;
}
@ -1138,6 +1139,7 @@ int __do_in_kernel_syscall(ihk_os_t os, struct mcctrl_channel *c, struct syscall
{
int error;
long ret = -1;
struct mcctrl_usrdata *usrdata = ihk_host_os_get_usrdata(os);
dprintk("__do_in_kernel_syscall(%p,%p,%ld %lx)\n", os, c, sc->number, sc->args[0]);
switch (sc->number) {
@ -1146,6 +1148,11 @@ int __do_in_kernel_syscall(ihk_os_t os, struct mcctrl_channel *c, struct syscall
break;
case __NR_munmap:
/* Set new remote page table if not zero */
if (sc->args[2]) {
usrdata->rpgtable = sc->args[2];
}
clear_pte_range(sc->args[0], sc->args[1]);
ret = 0;
break;