* [PATCH] UML - Implement current_text_addr
@ 2004-09-23 2:23 Jeff Dike
0 siblings, 0 replies; only message in thread
From: Jeff Dike @ 2004-09-23 2:23 UTC (permalink / raw)
To: akpm; +Cc: linux-kernel, blaisorblade_spam
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Index: linux-2.6.9-rc2-mm1-orig/include/asm-um/processor-generic.h
===================================================================
--- linux-2.6.9-rc2-mm1-orig.orig/include/asm-um/processor-generic.h 2004-09-22 19:51:02.000000000 -0400
+++ linux-2.6.9-rc2-mm1-orig/include/asm-um/processor-generic.h 2004-09-22 20:29:01.000000000 -0400
@@ -16,8 +16,6 @@
struct mm_struct;
-#define current_text_addr() ((void *) 0)
-
#define cpu_relax() barrier()
struct thread_struct {
Index: linux-2.6.9-rc2-mm1-orig/include/asm-um/processor-i386.h
===================================================================
--- linux-2.6.9-rc2-mm1-orig.orig/include/asm-um/processor-i386.h 2004-09-22 19:51:02.000000000 -0400
+++ linux-2.6.9-rc2-mm1-orig/include/asm-um/processor-i386.h 2004-09-22 20:29:01.000000000 -0400
@@ -19,6 +19,13 @@
#include "asm/arch/user.h"
+/*
+ * Default implementation of macro that returns current
+ * instruction pointer ("program counter"). Stolen
+ * from asm-i386/processor.h
+ */
+#define current_text_addr() ({ void *pc; __asm__("movl $1f,%0\n1:":"=g" (pc)); pc; })
+
#include "asm/processor-generic.h"
#endif
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2004-09-23 2:23 [PATCH] UML - Implement current_text_addr Jeff Dike
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