[U-Boot] [PATCH] MIPS: Introduce --gc-sections for MIPS
daniel.schwierzeck at googlemail.com
daniel.schwierzeck at googlemail.com
Fri Apr 15 17:16:44 CEST 2011
All architectures but MIPS are using --gc-sections on final linking.
This patch introduces that feature for MIPS to reduce the memory and
flash footprint.
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck at googlemail.com>
Cc: Shinya Kuribayashi <skuribay at pobox.com>
Cc: Wolfgang Denk <wd at denx.de>
Cc: Stefan Roese <sr at denx.de>
Cc: Thomas Lange <thomas at corelatus.se>
Cc: Vlad Lungu <vlad.lungu at windriver.com>
---
Tested with ELDK-4.1 and self-built gcc-4.3.3/binutils-2.19.1 on my
boards. I could not test the other boards so I would appreciate it if
the maintainers in CC could do a quick test on their boards.
arch/mips/config.mk | 2 ++
board/dbau1x00/u-boot.lds | 10 +++++-----
board/gth2/u-boot.lds | 10 +++++-----
board/incaip/u-boot.lds | 10 +++++-----
board/micronas/vct/u-boot.lds | 10 +++++-----
board/pb1x00/u-boot.lds | 10 +++++-----
board/qemu-mips/u-boot.lds | 10 +++++-----
board/tb0229/u-boot.lds | 10 +++++-----
examples/standalone/mips.lds | 10 +++++-----
9 files changed, 42 insertions(+), 40 deletions(-)
diff --git a/arch/mips/config.mk b/arch/mips/config.mk
index 318d34b..6ab8acd 100644
--- a/arch/mips/config.mk
+++ b/arch/mips/config.mk
@@ -50,3 +50,5 @@ PLATFORM_CPPFLAGS += -DCONFIG_MIPS -D__MIPS__
PLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic
PLATFORM_CPPFLAGS += -msoft-float
PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib
+PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
+LDFLAGS_FINAL += --gc-sections
diff --git a/board/dbau1x00/u-boot.lds b/board/dbau1x00/u-boot.lds
index 3c4fbe3..4a59cea 100644
--- a/board/dbau1x00/u-boot.lds
+++ b/board/dbau1x00/u-boot.lds
@@ -34,14 +34,14 @@ SECTIONS
. = ALIGN(4);
.text :
{
- *(.text)
+ *(.text*)
}
. = ALIGN(4);
.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
. = ALIGN(4);
- .data : { *(.data) }
+ .data : { *(.data*) }
. = .;
_gp = ALIGN(16) + 0x7ff0;
@@ -52,7 +52,7 @@ SECTIONS
__got_end = .;
}
- .sdata : { *(.sdata) }
+ .sdata : { *(.sdata*) }
.u_boot_cmd : {
__u_boot_cmd_start = .;
@@ -64,7 +64,7 @@ SECTIONS
num_got_entries = (__got_end - __got_start) >> 2;
. = ALIGN(4);
- .sbss (NOLOAD) : { *(.sbss) }
- .bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
+ .sbss (NOLOAD) : { *(.sbss*) }
+ .bss (NOLOAD) : { *(.bss*) . = ALIGN(4); }
uboot_end = .;
}
diff --git a/board/gth2/u-boot.lds b/board/gth2/u-boot.lds
index aeb0fcc..9fc417f 100644
--- a/board/gth2/u-boot.lds
+++ b/board/gth2/u-boot.lds
@@ -34,14 +34,14 @@ SECTIONS
. = ALIGN(4);
.text :
{
- *(.text)
+ *(.text*)
}
. = ALIGN(4);
.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
. = ALIGN(4);
- .data : { *(.data) }
+ .data : { *(.data*) }
. = .;
_gp = ALIGN(16) + 0x7ff0;
@@ -52,7 +52,7 @@ SECTIONS
__got_end = .;
}
- .sdata : { *(.sdata) }
+ .sdata : { *(.sdata*) }
.u_boot_cmd : {
__u_boot_cmd_start = .;
@@ -64,7 +64,7 @@ SECTIONS
num_got_entries = (__got_end - __got_start) >> 2;
. = ALIGN(4);
- .sbss (NOLOAD) : { *(.sbss) }
- .bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
+ .sbss (NOLOAD) : { *(.sbss*) }
+ .bss (NOLOAD) : { *(.bss*) . = ALIGN(4); }
uboot_end = .;
}
diff --git a/board/incaip/u-boot.lds b/board/incaip/u-boot.lds
index 3c4fbe3..4a59cea 100644
--- a/board/incaip/u-boot.lds
+++ b/board/incaip/u-boot.lds
@@ -34,14 +34,14 @@ SECTIONS
. = ALIGN(4);
.text :
{
- *(.text)
+ *(.text*)
}
. = ALIGN(4);
.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
. = ALIGN(4);
- .data : { *(.data) }
+ .data : { *(.data*) }
. = .;
_gp = ALIGN(16) + 0x7ff0;
@@ -52,7 +52,7 @@ SECTIONS
__got_end = .;
}
- .sdata : { *(.sdata) }
+ .sdata : { *(.sdata*) }
.u_boot_cmd : {
__u_boot_cmd_start = .;
@@ -64,7 +64,7 @@ SECTIONS
num_got_entries = (__got_end - __got_start) >> 2;
. = ALIGN(4);
- .sbss (NOLOAD) : { *(.sbss) }
- .bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
+ .sbss (NOLOAD) : { *(.sbss*) }
+ .bss (NOLOAD) : { *(.bss*) . = ALIGN(4); }
uboot_end = .;
}
diff --git a/board/micronas/vct/u-boot.lds b/board/micronas/vct/u-boot.lds
index b90b186..3a05ef9 100644
--- a/board/micronas/vct/u-boot.lds
+++ b/board/micronas/vct/u-boot.lds
@@ -31,14 +31,14 @@ SECTIONS
. = ALIGN(4);
.text :
{
- *(.text)
+ *(.text*)
}
. = ALIGN(4);
.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
. = ALIGN(4);
- .data : { *(.data) }
+ .data : { *(.data*) }
. = .;
_gp = ALIGN(16) + 0x7ff0;
@@ -50,7 +50,7 @@ SECTIONS
}
. = ALIGN(4);
- .sdata : { *(.sdata) }
+ .sdata : { *(.sdata*) }
. = ALIGN(4);
.u_boot_cmd : {
@@ -64,8 +64,8 @@ SECTIONS
num_got_entries = (__got_end - __got_start) >> 2;
. = ALIGN(4);
- .sbss (NOLOAD) : { *(.sbss) }
+ .sbss (NOLOAD) : { *(.sbss*) }
. = ALIGN(4);
- .bss (NOLOAD) : { *(.bss) }
+ .bss (NOLOAD) : { *(.bss*) }
uboot_end = .;
}
diff --git a/board/pb1x00/u-boot.lds b/board/pb1x00/u-boot.lds
index 358cc54..bd0dee1 100644
--- a/board/pb1x00/u-boot.lds
+++ b/board/pb1x00/u-boot.lds
@@ -34,14 +34,14 @@ SECTIONS
. = ALIGN(4);
.text :
{
- *(.text)
+ *(.text*)
}
. = ALIGN(4);
.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
. = ALIGN(4);
- .data : { *(.data) }
+ .data : { *(.data*) }
. = .;
_gp = ALIGN(16) + 0x7ff0;
@@ -52,7 +52,7 @@ SECTIONS
__got_end = .;
}
- .sdata : { *(.sdata) }
+ .sdata : { *(.sdata*) }
.u_boot_cmd : {
__u_boot_cmd_start = .;
@@ -64,7 +64,7 @@ SECTIONS
num_got_entries = (__got_end - __got_start) >> 2;
. = ALIGN(4);
- .sbss (NOLOAD) : { *(.sbss) }
- .bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
+ .sbss (NOLOAD) : { *(.sbss*) }
+ .bss (NOLOAD) : { *(.bss*) . = ALIGN(4); }
uboot_end = .;
}
diff --git a/board/qemu-mips/u-boot.lds b/board/qemu-mips/u-boot.lds
index bd16786..9460b20 100644
--- a/board/qemu-mips/u-boot.lds
+++ b/board/qemu-mips/u-boot.lds
@@ -34,14 +34,14 @@ SECTIONS
. = ALIGN(4);
.text :
{
- *(.text)
+ *(.text*)
}
. = ALIGN(4);
.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
. = ALIGN(4);
- .data : { *(.data) }
+ .data : { *(.data*) }
. = .;
_gp = ALIGN(16) +0x7ff0;
@@ -53,7 +53,7 @@ SECTIONS
}
. = ALIGN(4);
- .sdata : { *(.sdata) }
+ .sdata : { *(.sdata*) }
. = .;
.u_boot_cmd : {
@@ -66,7 +66,7 @@ SECTIONS
num_got_entries = (__got_end - __got_start) >> 2;
. = ALIGN(4);
- .sbss : { *(.sbss) }
- .bss : { *(.bss) . = ALIGN(4); }
+ .sbss : { *(.sbss*) }
+ .bss : { *(.bss*) . = ALIGN(4); }
uboot_end = .;
}
diff --git a/board/tb0229/u-boot.lds b/board/tb0229/u-boot.lds
index 56d7c25..5ea1094 100644
--- a/board/tb0229/u-boot.lds
+++ b/board/tb0229/u-boot.lds
@@ -34,14 +34,14 @@ SECTIONS
. = ALIGN(4);
.text :
{
- *(.text)
+ *(.text*)
}
. = ALIGN(4);
.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
. = ALIGN(4);
- .data : { *(.data) }
+ .data : { *(.data*) }
. = .;
_gp = ALIGN(16) + 0x7ff0;
@@ -52,7 +52,7 @@ SECTIONS
__got_end = .;
}
- .sdata : { *(.sdata) }
+ .sdata : { *(.sdata*) }
.u_boot_cmd : {
__u_boot_cmd_start = .;
@@ -64,7 +64,7 @@ SECTIONS
num_got_entries = (__got_end - __got_start) >> 2;
. = ALIGN(4);
- .sbss (NOLOAD) : { *(.sbss) }
- .bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
+ .sbss (NOLOAD) : { *(.sbss*) }
+ .bss (NOLOAD) : { *(.bss*) . = ALIGN(4); }
uboot_end = .;
}
diff --git a/examples/standalone/mips.lds b/examples/standalone/mips.lds
index 63a1c92..5f766ed 100644
--- a/examples/standalone/mips.lds
+++ b/examples/standalone/mips.lds
@@ -30,14 +30,14 @@ SECTIONS
{
.text :
{
- *(.text)
+ *(.text*)
}
. = ALIGN(4);
.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
. = ALIGN(4);
- .data : { *(.data) }
+ .data : { *(.data*) }
. = .;
_gp = ALIGN(16) + 0x7ff0;
@@ -48,12 +48,12 @@ SECTIONS
__got_end = .;
}
- .sdata : { *(.sdata) }
+ .sdata : { *(.sdata*) }
. = ALIGN(4);
__bss_start = .;
- .sbss (NOLOAD) : { *(.sbss) }
- .bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
+ .sbss (NOLOAD) : { *(.sbss*) }
+ .bss (NOLOAD) : { *(.bss*) . = ALIGN(4); }
_end = .;
}
--
1.7.4.3
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