Changeset 7a0359b in mainline for kernel/arch/sparc64/include/sun4u/asm.h

Timestamp:

2010-07-02T15:42:19Z (14 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

bbfdf62

Parents:

e3ee9b9

Message:

improve kernel function tracing

• add support for more generic kernel sources
• replace attribute((no_instrument_function)) with NO_TRACE macro (shorter and for future compatibility with different compilers)
• to be on the safe side, do not instrument most of the inline and static functions (plus some specific non-static functions)

collateral code cleanup (no change in functionality)

File:

• kernel/arch/sparc64/include/sun4u/asm.h (modified) (2 diffs)

kernel/arch/sparc64/include/sun4u/asm.h

@@ -27 +27 @@
  */
 
-/** @addtogroup sparc64 
+/** @addtogroup sparc64
  * @{
  */
@@ -36 +36 @@
 #define KERN_sparc64_sun4u_ASM_H_
 
-extern uint64_t read_from_ag_g7(void);
-extern void write_to_ag_g6(uint64_t val);
-extern void write_to_ag_g7(uint64_t val);
-extern void write_to_ig_g6(uint64_t val);
-
+#include <trace.h>
 
 /** Read Version Register.
  *
  * @return Value of VER register.
+ *
  */
-static inline uint64_t ver_read(void)
+NO_TRACE static inline uint64_t ver_read(void)
 {
         uint64_t v;
         
-        asm volatile ("rdpr %%ver, %0\n" : "=r" (v));
+        asm volatile (
+                "rdpr %%ver, %[v]\n"
+                : [v] "=r" (v)
+        );
         
         return v;
 }
+
+extern uint64_t read_from_ag_g7(void);
+extern void write_to_ag_g6(uint64_t);
+extern void write_to_ag_g7(uint64_t);
+extern void write_to_ig_g6(uint64_t);
 
 #endif