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Update.
[pintos-anon]
/
src
/
threads
/
interrupt.h
diff --git
a/src/threads/interrupt.h
b/src/threads/interrupt.h
index 99abf8e3a92ddecff94064dd7bbaf5f0086e774d..b805671e626d6891f1b43aa06de64674f15a91d6 100644
(file)
--- a/
src/threads/interrupt.h
+++ b/
src/threads/interrupt.h
@@
-19,7
+19,7
@@
enum intr_level intr_disable (void);
/* Interrupt stack frame. */
struct intr_frame
{
/* Interrupt stack frame. */
struct intr_frame
{
- /* Pushed by intr_entry in intr-stubs.S
(see intr-stubs.pl)
.
+ /* Pushed by intr_entry in intr-stubs.S.
These are the interrupted task's saved registers. */
uint32_t edi; /* Saved EDI. */
uint32_t esi; /* Saved ESI. */
These are the interrupted task's saved registers. */
uint32_t edi; /* Saved EDI. */
uint32_t esi; /* Saved ESI. */
@@
-34,13
+34,18
@@
struct intr_frame
uint16_t es, :16; /* Saved ES segment register. */
uint16_t ds, :16; /* Saved DS segment register. */
uint16_t es, :16; /* Saved ES segment register. */
uint16_t ds, :16; /* Saved DS segment register. */
- /* Pushed by intr
XX_stub in intr-stubs.S (see intr-stubs.pl)
. */
+ /* Pushed by intr
NN_stub in intr-stubs.S
. */
uint32_t vec_no; /* Interrupt vector number. */
/* Sometimes pushed by the CPU,
uint32_t vec_no; /* Interrupt vector number. */
/* Sometimes pushed by the CPU,
- otherwise for consistency pushed as 0 by intrXX_stub. */
+ otherwise for consistency pushed as 0 by intrNN_stub.
+ The CPU puts it just under `eip', but we move it here. */
uint32_t error_code; /* Error code. */
uint32_t error_code; /* Error code. */
+ /* Pushed by intrNN_stub in intr-stubs.S.
+ This frame pointer eases interpretation of backtraces. */
+ void *frame_pointer; /* Saved EBP (frame pointer). */
+
/* Pushed by the CPU.
These are the interrupted task's saved registers. */
void (*eip) (void); /* Next instruction to execute. */
/* Pushed by the CPU.
These are the interrupted task's saved registers. */
void (*eip) (void); /* Next instruction to execute. */