[1/3] powerpc: add _HEAD_GLOBAL to place functions in .text.head

[Milton Miller <miltonm@bga.com>]

This is the first step to moving the interrupt vectors to .text.head.

Rather than creating more repetition, factor out creating a function
descriptor, from declaring it to be global in a section.

The order of .globl and the symbol definitions is changed but is
a don't care.

Signed-off-by: Milton Miller <miltonm@bga.com>
---
I left the section in the macros, and added a new macro.   I didn't
want to hunt down other uses of _GLOBAL to audit the section, and _KPROBE
needs to set the section.


diff --git a/include/asm-powerpc/ppc_asm.h b/include/asm-powerpc/ppc_asm.h
index 0966899..cb5a4b0 100644
--- a/include/asm-powerpc/ppc_asm.h
+++ b/include/asm-powerpc/ppc_asm.h
@@ -178,11 +178,8 @@ END_FTR_SECTION_IFCLR(CPU_FTR_PURR);					\
 #define XGLUE(a,b) a##b
 #define GLUE(a,b) XGLUE(a,b)
 
-#define _GLOBAL(name) \
-	.section ".text"; \
+#define _FUNCTION(name) \
 	.align 2 ; \
-	.globl name; \
-	.globl GLUE(.,name); \
 	.section ".opd","aw"; \
 name: \
 	.quad GLUE(.,name); \
@@ -192,57 +189,41 @@ name: \
 	.type GLUE(.,name),@function; \
 GLUE(.,name):
 
+#define _GLOBAL(name) \
+	.section ".text"; \
+	.globl name; \
+	.globl GLUE(.,name); \
+	_FUNCTION(name)
+
 #define _INIT_GLOBAL(name) \
 	.section ".text.init.refok"; \
-	.align 2 ; \
 	.globl name; \
 	.globl GLUE(.,name); \
-	.section ".opd","aw"; \
-name: \
-	.quad GLUE(.,name); \
-	.quad .TOC.@tocbase; \
-	.quad 0; \
-	.previous; \
-	.type GLUE(.,name),@function; \
-GLUE(.,name):
+	_FUNCTION(name)
+
+#define _HEAD_GLOBAL(name) \
+	.section ".text.head"; \
+	.globl name; \
+	.globl GLUE(.,name); \
+	_FUNCTION(name)
 
 #define _KPROBE(name) \
 	.section ".kprobes.text","a"; \
-	.align 2 ; \
 	.globl name; \
 	.globl GLUE(.,name); \
-	.section ".opd","aw"; \
-name: \
-	.quad GLUE(.,name); \
-	.quad .TOC.@tocbase; \
-	.quad 0; \
-	.previous; \
-	.type GLUE(.,name),@function; \
-GLUE(.,name):
+	_FUNCTION(name)
 
 #define _STATIC(name) \
 	.section ".text"; \
-	.align 2 ; \
-	.section ".opd","aw"; \
-name: \
-	.quad GLUE(.,name); \
-	.quad .TOC.@tocbase; \
-	.quad 0; \
-	.previous; \
-	.type GLUE(.,name),@function; \
-GLUE(.,name):
+	_FUNCTION(name)
 
 #define _INIT_STATIC(name) \
 	.section ".text.init.refok"; \
-	.align 2 ; \
-	.section ".opd","aw"; \
-name: \
-	.quad GLUE(.,name); \
-	.quad .TOC.@tocbase; \
-	.quad 0; \
-	.previous; \
-	.type GLUE(.,name),@function; \
-GLUE(.,name):
+	_FUNCTION(name)
+
+#define _HEAD_STATIC(name) \
+	.section ".text.head"; \
+	_FUNCTION(name)
 
 #else /* 32-bit */