Set up a frame pointer on interrupt entry, to improve backtraces of

[pintos-anon] / src / threads / intr-stubs.h

diff --git a/src/threads/intr-stubs.h b/src/threads/intr-stubs.h
index 116b637e3cd0b7560f4a5d3dae57b475f80ba0db..9ceba157e27e57d74a9096a2f35f0ff3008ffb10 100644 (file)
--- a/src/threads/intr-stubs.h
+++ b/src/threads/intr-stubs.h
@@ -4,10 +4,9 @@
 /* Interrupt stubs.
 
    These are little snippets of code in intr-stubs.S, one for
-   each of the 256 possible x86 interrupts.  They just push the
-   interrupt vector number on the stack (and, for interrupts that
-   don't have an error code, a fake error code), then jump to
-   intr_entry().
+   each of the 256 possible x86 interrupts.  Each one does a
+   little bit of stack manipulation, then jumps to intr_entry().
+   See intr-stubs.S for more information.
 
    This array points to each of the interrupt stub entry points
    so that intr_init() can easily find them. */