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LAB 4 IS DONE.

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winPond
2019-07-06 10:39:40 +08:00
parent 21dd0e1a51
commit e78b336ba8
113 changed files with 11622 additions and 0 deletions
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11
lab/user/faultevilhandler.c Normal file
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// test evil pointer for user-level fault handler
#include <inc/lib.h>
void
umain(int argc, char **argv)
{
sys_page_alloc(0, (void*) (UXSTACKTOP - PGSIZE), PTE_P|PTE_U|PTE_W);
sys_env_set_pgfault_upcall(0, (void*) 0xF0100020);
*(int*)0 = 0;
}