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Implement dynamic stack growth #54

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td1223 merged 14 commits from ethan-stack-growth into virtual-memory 2024-11-30 23:21:34 +00:00
Conversation 3 Commits 14 Files Changed 7 +256 -868
28 changed files with 256 additions and 868 deletions
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8
src/userprog/exception.c
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@@ -145,6 +145,14 @@ page_fault (struct intr_frame *f)
write = (f->error_code & PF_W) != 0; write = (f->error_code & PF_W) != 0;
user = (f->error_code & PF_U) != 0; user = (f->error_code & PF_U) != 0;
/* Kernel page fault is further handled by the kernel itself. */
if (!user)
{
f->eip = (void *)f->eax;
f->eax = 0xffffffff;
return;
}
/* To implement virtual memory, delete the rest of the function /* To implement virtual memory, delete the rest of the function
body, and replace it with code that brings in the page to body, and replace it with code that brings in the page to
which fault_addr refers. */ which fault_addr refers. */