[U-Boot] [PATCH 1/2] Blackfin: stick ins/outs funcs into their own .text section

Mike Frysinger vapier at gentoo.org
Mon Nov 15 20:40:56 CET 2010


This lets the linker garbage collect these functions when they aren't
actually used by placing them into the standard .text.<func> section.

Signed-off-by: Mike Frysinger <vapier at gentoo.org>
---
 arch/blackfin/lib/ins.S  |    1 +
 arch/blackfin/lib/outs.S |    4 ++++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/blackfin/lib/ins.S b/arch/blackfin/lib/ins.S
index 4519596..3ac6d84 100644
--- a/arch/blackfin/lib/ins.S
+++ b/arch/blackfin/lib/ins.S
@@ -71,6 +71,7 @@
  */
 
 #define COMMON_INS(func, ops) \
+.section .text._ins##func; \
 ENTRY(_ins##func) \
 	P0 = R0;	/* P0 = port */ \
 	CLI_OUTER;	/* 3 instructions before first read access */ \
diff --git a/arch/blackfin/lib/outs.S b/arch/blackfin/lib/outs.S
index 90c6033..253d4c3 100644
--- a/arch/blackfin/lib/outs.S
+++ b/arch/blackfin/lib/outs.S
@@ -12,6 +12,7 @@
 
 .align 2
 
+.section .text._outsl
 ENTRY(_outsl)
 	P0 = R0;	/* P0 = port */
 	P1 = R1;	/* P1 = address */
@@ -23,6 +24,7 @@ ENTRY(_outsl)
 	RTS;
 ENDPROC(_outsl)
 
+.section .text._outsw
 ENTRY(_outsw)
 	P0 = R0;	/* P0 = port */
 	P1 = R1;	/* P1 = address */
@@ -34,6 +36,7 @@ ENTRY(_outsw)
 	RTS;
 ENDPROC(_outsw)
 
+.section .text._outsb
 ENTRY(_outsb)
 	P0 = R0;	/* P0 = port */
 	P1 = R1;	/* P1 = address */
@@ -45,6 +48,7 @@ ENTRY(_outsb)
 	RTS;
 ENDPROC(_outsb)
 
+.section .text._outsw_8
 ENTRY(_outsw_8)
 	P0 = R0;	/* P0 = port */
 	P1 = R1;	/* P1 = address */
-- 
1.7.3.2



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