From cd619a1eec451f440c109122cd41790e0a3f70ee Mon Sep 17 00:00:00 2001
From: Holger Lubitz
Date: Thu, 2 Aug 2007 00:27:54 +0200
Subject: define __pure and __const

---
 src/include/compiler.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/include/compiler.h')

diff --git a/src/include/compiler.h b/src/include/compiler.h
index b130f28fd..e79f9fb2d 100644
--- a/src/include/compiler.h
+++ b/src/include/compiler.h
@@ -279,6 +279,18 @@ extern void dbg_hex_dump_da ( unsigned long dispaddr,
 /** Apply standard C calling conventions */
 #define __cdecl __attribute__ (( cdecl , regparm(0) ))
 
+/**
+ * Declare a function as pure - i.e. without side effects
+ */
+#define __pure __attribute__ (( pure ))
+
+/**
+ * Declare a function as const - i.e. it does not access global memory
+ * (including dereferencing pointers passed to it) at all.
+ * Must also not call any non-const functions.
+ */
+#define __const __attribute__ (( const ))
+
 /**
  * Declare a function as used.
  *
-- 
cgit v1.2.3-55-g7522


From e3d10ac6734833e94d329c517c868223d530a955 Mon Sep 17 00:00:00 2001
From: Holger Lubitz
Date: Thu, 2 Aug 2007 01:01:01 +0200
Subject: define __nonnull

---
 src/include/compiler.h | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/include/compiler.h')

diff --git a/src/include/compiler.h b/src/include/compiler.h
index e79f9fb2d..32416a561 100644
--- a/src/include/compiler.h
+++ b/src/include/compiler.h
@@ -291,6 +291,13 @@ extern void dbg_hex_dump_da ( unsigned long dispaddr,
  */
 #define __const __attribute__ (( const ))
 
+/**
+ * Declare a function's pointer parameters as non-null - i.e. force
+ * compiler to check pointers at compile time and enable possible
+ * optimizations based on that fact
+ */
+#define __nonnull __attribute__ (( nonnull ))
+
 /**
  * Declare a function as used.
  *
-- 
cgit v1.2.3-55-g7522


From 2220e1a676fd46286f48aa193d70fe5197629f49 Mon Sep 17 00:00:00 2001
From: Holger Lubitz
Date: Mon, 20 Aug 2007 20:28:11 +0200
Subject: define malloc attribute

---
 src/include/compiler.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src/include/compiler.h')

diff --git a/src/include/compiler.h b/src/include/compiler.h
index 32416a561..15efb709e 100644
--- a/src/include/compiler.h
+++ b/src/include/compiler.h
@@ -298,6 +298,12 @@ extern void dbg_hex_dump_da ( unsigned long dispaddr,
  */
 #define __nonnull __attribute__ (( nonnull ))
 
+/**
+ * Declare a pointer returned by a function as a unique memory address
+ * as returned by malloc-type functions.
+ */
+#define __malloc __attribute__ (( malloc ))
+
 /**
  * Declare a function as used.
  *
-- 
cgit v1.2.3-55-g7522