Changeset 40d4c1d in mainline for kernel/arch/amd64/include

Timestamp:

2010-01-08T22:13:34Z (16 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

234e39e

Parents:

eb0bc90 (diff), 6d7f9bfe (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge the stack tracing branch.

The merge includes generic and amd64 and ia32 support for kernel stack traces.
The kernel will now print a stack trace for each killed task and also for
each bad trap and panic. The rest of the architectures have dummy support,
i.e. they compile and run, but the kernel cannot print the stack trace.

Location:

kernel/arch/amd64/include

Files:

• context.h (modified) (1 diff)
• interrupt.h (modified) (3 diffs)

kernel/arch/amd64/include/context.h

@@ -46 +46 @@
 #define SP_DELTA     16
 
+#define context_set(c, _pc, stack, size) \
+        do { \
+                (c)->pc = (uintptr_t) (_pc); \
+                (c)->sp = ((uintptr_t) (stack)) + (size) - SP_DELTA; \
+                (c)->rbp = 0; \
+        } while (0)
+
 #endif /* KERNEL */
 

kernel/arch/amd64/include/interrupt.h

@@ -70 +70 @@
 
 /** This is passed to interrupt handlers */
-typedef struct {
+typedef struct istate {
         uint64_t rax;
         uint64_t rcx;
@@ -80 +80 @@
         uint64_t r10;
         uint64_t r11;
+        uint64_t rbp;
         uint64_t error_word;
         uint64_t rip;
@@ -101 +102 @@
         return istate->rip;
 }
+static inline unative_t istate_get_fp(istate_t *istate)
+{
+        return istate->rbp;
+}
 
 extern void (* disable_irqs_function)(uint16_t irqmask);