From: Daniel Schwierzeck Date: Fri, 15 Apr 2011 15:16:44 +0000 (+0200) Subject: MIPS: Introduce --gc-sections for MIPS X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=660da0947abff3bc98bb0baa37a6db5050ff46d6;p=u-boot.git MIPS: Introduce --gc-sections for MIPS 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 Cc: Wolfgang Denk Cc: Stefan Roese Cc: Thomas Lange Cc: Vlad Lungu Signed-off-by: Shinya Kuribayashi --- diff --git a/arch/mips/config.mk b/arch/mips/config.mk index 318d34b1e6..6ab8acdb17 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 3c4fbe3ee9..4a59cea80f 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 aeb0fcc004..9fc417f3bc 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 3c4fbe3ee9..4a59cea80f 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 b90b186472..3a05ef9049 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 358cc54a8b..bd0dee1efb 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 bd16786cbc..9460b2010c 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 56d7c25448..5ea1094067 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 63a1c92ab6..5f766ed378 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 = .; }