From: Albert ARIBAUD Date: Tue, 11 Jun 2013 12:17:33 +0000 (+0200) Subject: arm: make __image_copy_{start, end} compiler-generated X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=d026dec8751378473b4f12eb87717c8059472b3e;p=u-boot.git arm: make __image_copy_{start, end} compiler-generated This change is only done where needed: some linker scripts may contain __image_copy_{start,end} yet remain unchanged. Also, __image_copy_end needs its own section; putting it in relocation sections changes their flags and makes relocation break. Signed-off-by: Albert ARIBAUD Tested-by: Lubomir Popov Tested-by: Jeroen Hofstee Reviewed-by: Benoît Thébaudeau --- diff --git a/arch/arm/cpu/arm920t/ep93xx/u-boot.lds b/arch/arm/cpu/arm920t/ep93xx/u-boot.lds index cf55bf7d4d..367c805e38 100644 --- a/arch/arm/cpu/arm920t/ep93xx/u-boot.lds +++ b/arch/arm/cpu/arm920t/ep93xx/u-boot.lds @@ -31,6 +31,7 @@ SECTIONS . = ALIGN(4); .text : { + *(.__image_copy_start) arch/arm/cpu/arm920t/start.o (.text*) /* the EP93xx expects to find the pattern 'CRUS' at 0x1000 */ . = 0x1000; @@ -56,7 +57,10 @@ SECTIONS . = ALIGN(4); - __image_copy_end = .; + .image_copy_end : + { + *(.__image_copy_end) + } __bss_start = .; .bss : { *(.bss*) } diff --git a/arch/arm/cpu/ixp/u-boot.lds b/arch/arm/cpu/ixp/u-boot.lds index 5cfff68e05..9141199bed 100644 --- a/arch/arm/cpu/ixp/u-boot.lds +++ b/arch/arm/cpu/ixp/u-boot.lds @@ -31,6 +31,7 @@ SECTIONS . = ALIGN(4); .text : { + *(.__image_copy_start) arch/arm/cpu/ixp/start.o(.text*) *(.text*) } @@ -54,7 +55,10 @@ SECTIONS . = ALIGN(4); - __image_copy_end = .; + .image_copy_end : + { + *(.__image_copy_end) + } .rel.dyn : { __rel_dyn_start = .; diff --git a/arch/arm/cpu/u-boot.lds b/arch/arm/cpu/u-boot.lds index fe2ca98176..d7adf90daf 100644 --- a/arch/arm/cpu/u-boot.lds +++ b/arch/arm/cpu/u-boot.lds @@ -33,7 +33,7 @@ SECTIONS . = ALIGN(4); .text : { - __image_copy_start = .; + *(.__image_copy_start) CPUDIR/start.o (.text*) *(.text*) } @@ -57,7 +57,10 @@ SECTIONS . = ALIGN(4); - __image_copy_end = .; + .image_copy_end : + { + *(.__image_copy_end) + } .rel.dyn : { __rel_dyn_start = .; diff --git a/arch/arm/lib/relocate.S b/arch/arm/lib/relocate.S index 7a7c4c085e..3767a9550c 100644 --- a/arch/arm/lib/relocate.S +++ b/arch/arm/lib/relocate.S @@ -39,13 +39,12 @@ ENTRY(relocate_code) mov r6, r0 /* save addr of destination */ - ldr r0, =_start /* r0 <- SRC &_start */ + ldr r0, =__image_copy_start /* r0 <- SRC &__image_copy_start */ subs r9, r6, r0 /* r9 <- relocation offset */ beq relocate_done /* skip relocation */ mov r1, r6 /* r1 <- scratch for copy loop */ adr r7, relocate_code /* r7 <- SRC &relocate_code */ - ldr r3, _image_copy_end_ofs /* r3 <- __image_copy_end local ofs */ - add r2, r7, r3 /* r2 <- SRC &__image_copy_end */ + ldr r2, =__image_copy_end /* r2 <- SRC &__image_copy_end */ copy_loop: ldmia r0!, {r10-r11} /* copy from source address [r0] */ @@ -89,8 +88,6 @@ relocate_done: bx lr #endif -_image_copy_end_ofs: - .word __image_copy_end - relocate_code _rel_dyn_start_ofs: .word __rel_dyn_start - relocate_code _rel_dyn_end_ofs: diff --git a/arch/arm/lib/sections.c b/arch/arm/lib/sections.c index e52fec9333..03e846fa25 100644 --- a/arch/arm/lib/sections.c +++ b/arch/arm/lib/sections.c @@ -37,3 +37,5 @@ char __bss_start[0] __attribute__((section(".__bss_start"))); char __bss_end[0] __attribute__((section(".__bss_end"))); +char __image_copy_start[0] __attribute__((section(".__image_copy_start"))); +char __image_copy_end[0] __attribute__((section(".__image_copy_end"))); diff --git a/board/actux1/u-boot.lds b/board/actux1/u-boot.lds index 989ad7121d..531e5986cb 100644 --- a/board/actux1/u-boot.lds +++ b/board/actux1/u-boot.lds @@ -30,6 +30,7 @@ SECTIONS . = ALIGN (4); .text : { + *(.__image_copy_start) arch/arm/cpu/ixp/start.o(.text*) net/libnet.o(.text*) board/actux1/libactux1.o(.text*) @@ -62,7 +63,10 @@ SECTIONS . = ALIGN (4); - __image_copy_end = .; + .image_copy_end : + { + *(.__image_copy_end) + } .rel.dyn : { __rel_dyn_start = .; diff --git a/board/actux2/u-boot.lds b/board/actux2/u-boot.lds index 0e206704ff..aff773ce9c 100644 --- a/board/actux2/u-boot.lds +++ b/board/actux2/u-boot.lds @@ -30,6 +30,7 @@ SECTIONS . = ALIGN (4); .text : { + *(.__image_copy_start) arch/arm/cpu/ixp/start.o(.text*) net/libnet.o(.text*) board/actux2/libactux2.o(.text*) @@ -62,7 +63,10 @@ SECTIONS . = ALIGN (4); - __image_copy_end = .; + .image_copy_end : + { + *(.__image_copy_end) + } .rel.dyn : { __rel_dyn_start = .; diff --git a/board/actux3/u-boot.lds b/board/actux3/u-boot.lds index b7d29b4afa..9d43e95284 100644 --- a/board/actux3/u-boot.lds +++ b/board/actux3/u-boot.lds @@ -30,6 +30,7 @@ SECTIONS . = ALIGN (4); .text : { + *(.__image_copy_start) arch/arm/cpu/ixp/start.o(.text*) net/libnet.o(.text*) board/actux3/libactux3.o(.text*) @@ -62,7 +63,10 @@ SECTIONS . = ALIGN (4); - __image_copy_end = .; + .image_copy_end : + { + *(.__image_copy_end) + } .rel.dyn : { __rel_dyn_start = .; diff --git a/board/dvlhost/u-boot.lds b/board/dvlhost/u-boot.lds index ecd9efe8fc..ee7219f7ec 100644 --- a/board/dvlhost/u-boot.lds +++ b/board/dvlhost/u-boot.lds @@ -30,6 +30,7 @@ SECTIONS . = ALIGN (4); .text : { + *(.__image_copy_start) arch/arm/cpu/ixp/start.o(.text*) net/libnet.o(.text*) board/dvlhost/libdvlhost.o(.text*) @@ -62,7 +63,10 @@ SECTIONS . = ALIGN (4); - __image_copy_end = .; + .image_copy_end : + { + *(.__image_copy_end) + } .rel.dyn : { __rel_dyn_start = .; diff --git a/board/freescale/mx31ads/u-boot.lds b/board/freescale/mx31ads/u-boot.lds index 2197883140..f8ef00c32d 100644 --- a/board/freescale/mx31ads/u-boot.lds +++ b/board/freescale/mx31ads/u-boot.lds @@ -34,6 +34,7 @@ SECTIONS . = ALIGN(4); .text : { + *(.__image_copy_start) /* WARNING - the following is hand-optimized to fit within */ /* the sector layout of our flash chips! XXX FIXME XXX */ @@ -65,7 +66,10 @@ SECTIONS . = ALIGN(4); - __image_copy_end = .; + .image_copy_end : + { + *(.__image_copy_end) + } .rel.dyn : { __rel_dyn_start = .;