use -ffunction-sections / --gc-sections on IXP42x

Signed-off-by: Michael Schwingen <michael@schwingen.org>

use -ffunction-sections / --gc-sections on IXP42x
Signed-off-by: Michael Schwingen <michael@schwingen.org>
Michael Schwingen · Albert ARIBAUD
1 parent 363613a08d
Showing 2 changed files with 9 additions and 4 deletions Side-by-side Diff
arch/arm/cpu/ixp/config.mk
arch/arm/cpu/ixp/u-boot.lds
@@ -27,6 +27,11 @@
 PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float -mbig-endian
  
 PLATFORM_CPPFLAGS += -mbig-endian -march=armv5te -mtune=strongarm1100
+
+# -fdata-sections triggers "section .bss overlaps section .rel.dyn" linker error
+PLATFORM_RELFLAGS += -ffunction-sections
+LDFLAGS_u-boot += --gc-sections
+
 # =========================================================================
 #
 # Supply options according to compiler version
@@ -31,8 +31,8 @@
 	. = ALIGN(4);
 	.text :
 	{
-		arch/arm/cpu/ixp/start.o(.text)
-		*(.text)
+		arch/arm/cpu/ixp/start.o(.text*)
+		*(.text*)
 	}
  
 	. = ALIGN(4);
@@ -40,7 +40,7 @@
  
 	. = ALIGN(4);
 	.data : {
-		*(.data)
+		*(.data*)
 	}
  
 	. = ALIGN(4);
@@ -67,7 +67,7 @@
  
 	.bss __rel_dyn_start (OVERLAY) : {
 		__bss_start = .;
-		*(.bss)
+		*(.bss*)
 		 . = ALIGN(4);
 		__bss_end__ = .;
 	}
...	...	@@ -27,6 +27,11 @@
27	27	PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float -mbig-endian
28	28
29	29	PLATFORM_CPPFLAGS += -mbig-endian -march=armv5te -mtune=strongarm1100
	30	+
	31	+# -fdata-sections triggers "section .bss overlaps section .rel.dyn" linker error
	32	+PLATFORM_RELFLAGS += -ffunction-sections
	33	+LDFLAGS_u-boot += --gc-sections
	34	+
30	35	# =========================================================================
31	36	#
32	37	# Supply options according to compiler version
...	...	@@ -31,8 +31,8 @@
31	31	. = ALIGN(4);
32	32	.text :
33	33	{
34		- arch/arm/cpu/ixp/start.o(.text)
35		- *(.text)
	34	+ arch/arm/cpu/ixp/start.o(.text*)
	35	+ (.text)
36	36	}
37	37
38	38	. = ALIGN(4);
...	...	@@ -40,7 +40,7 @@
40	40
41	41	. = ALIGN(4);
42	42	.data : {
43		- *(.data)
	43	+ (.data)
44	44	}
45	45
46	46	. = ALIGN(4);
...	...	@@ -67,7 +67,7 @@
67	67
68	68	.bss __rel_dyn_start (OVERLAY) : {
69	69	__bss_start = .;
70		- *(.bss)
	70	+ (.bss)
71	71	. = ALIGN(4);
72	72	__bss_end__ = .;
73	73	}