From 7086e91b0e9930139e703c8f9f857b52baf2bef4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Beno=C3=AEt=20Th=C3=A9baudeau?= Date: Thu, 11 Apr 2013 09:35:46 +0000 Subject: arm: relocate_code(): Use __image_copy_end for end of relocation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use __image_copy_end instead of __bss_start for the end of the image to relocate. This is the same as commit 033ca72, but applied to all ARM start.S. This is a more appropriate symbol naming for an image copy & relocate feature, and this also saves a useless copy of data put between __image_copy_end and __bss_start in linker scripts (e.g. relocation information, or MMU initialization tables used only before jumping to the relocated image). Signed-off-by: Benoît Thébaudeau --- arch/arm/cpu/arm1136/start.S | 4 ++-- arch/arm/cpu/arm1176/start.S | 6 +++++- arch/arm/cpu/arm720t/start.S | 6 +++++- arch/arm/cpu/arm920t/ep93xx/u-boot.lds | 3 +++ arch/arm/cpu/arm920t/start.S | 6 +++++- arch/arm/cpu/arm925t/start.S | 6 +++++- arch/arm/cpu/arm926ejs/start.S | 6 +++++- arch/arm/cpu/arm946es/start.S | 6 +++++- arch/arm/cpu/arm_intcm/start.S | 6 +++++- arch/arm/cpu/armv7/start.S | 4 ++-- arch/arm/cpu/ixp/start.S | 6 +++++- arch/arm/cpu/ixp/u-boot.lds | 2 ++ arch/arm/cpu/pxa/start.S | 6 +++++- arch/arm/cpu/s3c44b0/start.S | 6 +++++- arch/arm/cpu/sa1100/start.S | 6 +++++- 15 files changed, 64 insertions(+), 15 deletions(-) (limited to 'arch') diff --git a/arch/arm/cpu/arm1136/start.S b/arch/arm/cpu/arm1136/start.S index 67fcc4f687..e36d7d32b9 100644 --- a/arch/arm/cpu/arm1136/start.S +++ b/arch/arm/cpu/arm1136/start.S @@ -104,9 +104,9 @@ _TEXT_BASE: _bss_start_ofs: .word __bss_start - _start -.global _image_copy_end_ofs +.globl _image_copy_end_ofs _image_copy_end_ofs: - .word __image_copy_end - _start + .word __image_copy_end - _start .globl _bss_end_ofs _bss_end_ofs: diff --git a/arch/arm/cpu/arm1176/start.S b/arch/arm/cpu/arm1176/start.S index 17b12777c9..0b570d599b 100644 --- a/arch/arm/cpu/arm1176/start.S +++ b/arch/arm/cpu/arm1176/start.S @@ -127,6 +127,10 @@ _TEXT_PHY_BASE: _bss_start_ofs: .word __bss_start - _start +.globl _image_copy_end_ofs +_image_copy_end_ofs: + .word __image_copy_end - _start + .globl _bss_end_ofs _bss_end_ofs: .word __bss_end - _start @@ -251,7 +255,7 @@ relocate_code: subs r9, r6, r0 /* r9 <- relocation offset */ beq relocate_done /* skip relocation */ mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs + ldr r3, _image_copy_end_ofs add r2, r0, r3 /* r2 <- source end address */ copy_loop: diff --git a/arch/arm/cpu/arm720t/start.S b/arch/arm/cpu/arm720t/start.S index 95f4447c3a..a640eaaa3b 100644 --- a/arch/arm/cpu/arm720t/start.S +++ b/arch/arm/cpu/arm720t/start.S @@ -101,6 +101,10 @@ _TEXT_BASE: _bss_start_ofs: .word __bss_start - _start +.globl _image_copy_end_ofs +_image_copy_end_ofs: + .word __image_copy_end - _start + .globl _bss_end_ofs _bss_end_ofs: .word __bss_end - _start @@ -166,7 +170,7 @@ relocate_code: subs r9, r6, r0 /* r9 <- relocation offset */ beq relocate_done /* skip relocation */ mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs + ldr r3, _image_copy_end_ofs add r2, r0, r3 /* r2 <- source end address */ copy_loop: diff --git a/arch/arm/cpu/arm920t/ep93xx/u-boot.lds b/arch/arm/cpu/arm920t/ep93xx/u-boot.lds index e483820f3f..d0b1ada8c6 100644 --- a/arch/arm/cpu/arm920t/ep93xx/u-boot.lds +++ b/arch/arm/cpu/arm920t/ep93xx/u-boot.lds @@ -55,6 +55,9 @@ SECTIONS } . = ALIGN(4); + + __image_copy_end = .; + __bss_start = .; .bss : { *(.bss) } __bss_end = .; diff --git a/arch/arm/cpu/arm920t/start.S b/arch/arm/cpu/arm920t/start.S index cd8c8db1a9..940ce729b8 100644 --- a/arch/arm/cpu/arm920t/start.S +++ b/arch/arm/cpu/arm920t/start.S @@ -89,6 +89,10 @@ _TEXT_BASE: _bss_start_ofs: .word __bss_start - _start +.globl _image_copy_end_ofs +_image_copy_end_ofs: + .word __image_copy_end - _start + .globl _bss_end_ofs _bss_end_ofs: .word __bss_end - _start @@ -205,7 +209,7 @@ relocate_code: subs r9, r6, r0 /* r9 <- relocation offset */ beq relocate_done /* skip relocation */ mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs + ldr r3, _image_copy_end_ofs add r2, r0, r3 /* r2 <- source end address */ copy_loop: diff --git a/arch/arm/cpu/arm925t/start.S b/arch/arm/cpu/arm925t/start.S index 9358f3e45f..ed683b44d5 100644 --- a/arch/arm/cpu/arm925t/start.S +++ b/arch/arm/cpu/arm925t/start.S @@ -95,6 +95,10 @@ _TEXT_BASE: _bss_start_ofs: .word __bss_start - _start +.globl _image_copy_end_ofs +_image_copy_end_ofs: + .word __image_copy_end - _start + .globl _bss_end_ofs _bss_end_ofs: .word __bss_end - _start @@ -195,7 +199,7 @@ relocate_code: subs r9, r6, r0 /* r9 <- relocation offset */ beq relocate_done /* skip relocation */ mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs + ldr r3, _image_copy_end_ofs add r2, r0, r3 /* r2 <- source end address */ copy_loop: diff --git a/arch/arm/cpu/arm926ejs/start.S b/arch/arm/cpu/arm926ejs/start.S index 6949645d1a..552279feee 100644 --- a/arch/arm/cpu/arm926ejs/start.S +++ b/arch/arm/cpu/arm926ejs/start.S @@ -140,6 +140,10 @@ _TEXT_BASE: _bss_start_ofs: .word __bss_start - _start +.globl _image_copy_end_ofs +_image_copy_end_ofs: + .word __image_copy_end - _start + .globl _bss_end_ofs _bss_end_ofs: .word __bss_end - _start @@ -212,7 +216,7 @@ relocate_code: subs r9, r6, r0 /* r9 <- relocation offset */ beq relocate_done /* skip relocation */ mov r1, r6 /* r1 <- scratch for copy loop */ - ldr r3, _bss_start_ofs + ldr r3, _image_copy_end_ofs add r2, r0, r3 /* r2 <- source end address */ copy_loop: diff --git a/arch/arm/cpu/arm946es/start.S b/arch/arm/cpu/arm946es/start.S index 90c15f25c9..2dd1fa3407 100644 --- a/arch/arm/cpu/arm946es/start.S +++ b/arch/arm/cpu/arm946es/start.S @@ -105,6 +105,10 @@ _TEXT_BASE: _bss_start_ofs: .word __bss_start - _start +.globl _image_copy_end_ofs +_image_copy_end_ofs: + .word __image_copy_end - _start + .globl _bss_end_ofs _bss_end_ofs: .word __bss_end - _start @@ -170,7 +174,7 @@ relocate_code: subs r9, r6, r0 /* r9 <- relocation offset */ beq relocate_done /* skip relocation */ mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs + ldr r3, _image_copy_end_ofs add r2, r0, r3 /* r2 <- source end address */ copy_loop: diff --git a/arch/arm/cpu/arm_intcm/start.S b/arch/arm/cpu/arm_intcm/start.S index a6e08ab5cd..cc054e8c28 100644 --- a/arch/arm/cpu/arm_intcm/start.S +++ b/arch/arm/cpu/arm_intcm/start.S @@ -101,6 +101,10 @@ _TEXT_BASE: _bss_start_ofs: .word __bss_start - _start +.globl _image_copy_end_ofs +_image_copy_end_ofs: + .word __image_copy_end - _start + .globl _bss_end_ofs _bss_end_ofs: .word __bss_end - _start @@ -166,7 +170,7 @@ relocate_code: subs r9, r6, r0 /* r9 <- relocation offset */ beq relocate_done /* skip relocation */ mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs + ldr r3, _image_copy_end_ofs add r2, r0, r3 /* r2 <- source end address */ copy_loop: diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S index 222b5050b1..d0b17c9abf 100644 --- a/arch/arm/cpu/armv7/start.S +++ b/arch/arm/cpu/armv7/start.S @@ -94,9 +94,9 @@ _TEXT_BASE: _bss_start_ofs: .word __bss_start - _start -.global _image_copy_end_ofs +.globl _image_copy_end_ofs _image_copy_end_ofs: - .word __image_copy_end - _start + .word __image_copy_end - _start .globl _bss_end_ofs _bss_end_ofs: diff --git a/arch/arm/cpu/ixp/start.S b/arch/arm/cpu/ixp/start.S index 3a1253dbe9..a305ff5e0a 100644 --- a/arch/arm/cpu/ixp/start.S +++ b/arch/arm/cpu/ixp/start.S @@ -114,6 +114,10 @@ _TEXT_BASE: _bss_start_ofs: .word __bss_start - _start +.globl _image_copy_end_ofs +_image_copy_end_ofs: + .word __image_copy_end - _start + .globl _bss_end_ofs _bss_end_ofs: .word __bss_end - _start @@ -268,7 +272,7 @@ relocate_code: subs r9, r6, r0 /* r9 <- relocation offset */ beq relocate_done /* skip relocation */ mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs + ldr r3, _image_copy_end_ofs add r2, r0, r3 /* r2 <- source end address */ copy_loop: diff --git a/arch/arm/cpu/ixp/u-boot.lds b/arch/arm/cpu/ixp/u-boot.lds index 8345b55032..388a67f101 100644 --- a/arch/arm/cpu/ixp/u-boot.lds +++ b/arch/arm/cpu/ixp/u-boot.lds @@ -54,6 +54,8 @@ SECTIONS . = ALIGN(4); + __image_copy_end = .; + .rel.dyn : { __rel_dyn_start = .; *(.rel*) diff --git a/arch/arm/cpu/pxa/start.S b/arch/arm/cpu/pxa/start.S index d8072417d8..cd88af8456 100644 --- a/arch/arm/cpu/pxa/start.S +++ b/arch/arm/cpu/pxa/start.S @@ -118,6 +118,10 @@ _TEXT_BASE: _bss_start_ofs: .word __bss_start - _start +.globl _image_copy_end_ofs +_image_copy_end_ofs: + .word __image_copy_end - _start + .globl _bss_end_ofs _bss_end_ofs: .word __bss_end - _start @@ -190,7 +194,7 @@ relocate_code: subs r9, r6, r0 /* r9 <- relocation offset */ beq relocate_done /* skip relocation */ mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs + ldr r3, _image_copy_end_ofs add r2, r0, r3 /* r2 <- source end address */ copy_loop: diff --git a/arch/arm/cpu/s3c44b0/start.S b/arch/arm/cpu/s3c44b0/start.S index 8cd4a5bda6..579f6e2fa1 100644 --- a/arch/arm/cpu/s3c44b0/start.S +++ b/arch/arm/cpu/s3c44b0/start.S @@ -80,6 +80,10 @@ _TEXT_BASE: _bss_start_ofs: .word __bss_start - _start +.globl _image_copy_end_ofs +_image_copy_end_ofs: + .word __image_copy_end - _start + .globl _bss_end_ofs _bss_end_ofs: .word __bss_end - _start @@ -151,7 +155,7 @@ relocate_code: subs r9, r6, r0 /* r9 <- relocation offset */ beq relocate_done /* skip relocation */ mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs + ldr r3, _image_copy_end_ofs add r2, r0, r3 /* r2 <- source end address */ copy_loop: diff --git a/arch/arm/cpu/sa1100/start.S b/arch/arm/cpu/sa1100/start.S index 508c21e305..13cf13226a 100644 --- a/arch/arm/cpu/sa1100/start.S +++ b/arch/arm/cpu/sa1100/start.S @@ -90,6 +90,10 @@ _TEXT_BASE: _bss_start_ofs: .word __bss_start - _start +.globl _image_copy_end_ofs +_image_copy_end_ofs: + .word __image_copy_end - _start + .globl _bss_end_ofs _bss_end_ofs: .word __bss_end - _start @@ -155,7 +159,7 @@ relocate_code: subs r9, r6, r0 /* r9 <- relocation offset */ beq relocate_done /* skip relocation */ mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs + ldr r3, _image_copy_end_ofs add r2, r0, r3 /* r2 <- source end address */ copy_loop: -- cgit v1.2.1