From: Darius Augulis <augulis.darius@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] arm: add ELF relocation support to rest of cpus
Date: Fri, 26 Nov 2010 20:04:02 +0200 [thread overview]
Message-ID: <4CEFF692.7060908@gmail.com> (raw)
In-Reply-To: <1290721502-410-1-git-send-email-albert.aribaud@free.fr>
Hi Albert,
On 11/25/2010 11:45 PM, Albert Aribaud wrote:
> bulk addition of ELF relocation support to ARM cpus
> arm946es, arm720t,arm920t, arm925t, arm_intcm, ixp,
> lh7a40x, s3c44b0, and sa1100.
>
> Signed-off-by: Albert Aribaud<albert.aribaud@free.fr>
> ---
> arch/arm/cpu/arm720t/start.S | 119 +++++++++++++++++----------------
> arch/arm/cpu/arm720t/u-boot.lds | 39 +++++++----
> arch/arm/cpu/arm920t/start.S | 125 ++++++++++++++++++-----------------
> arch/arm/cpu/arm920t/u-boot.lds | 38 +++++++----
> arch/arm/cpu/arm925t/start.S | 127 +++++++++++++++++++-----------------
> arch/arm/cpu/arm925t/u-boot.lds | 38 +++++++----
> arch/arm/cpu/arm946es/start.S | 123 ++++++++++++++++++-----------------
> arch/arm/cpu/arm946es/u-boot.lds | 38 +++++++----
> arch/arm/cpu/arm_intcm/start.S | 127 +++++++++++++++++++----------------
> arch/arm/cpu/arm_intcm/u-boot.lds | 38 +++++++----
> arch/arm/cpu/ixp/start.S | 118 +++++++++++++++++----------------
> arch/arm/cpu/ixp/u-boot.lds | 38 +++++++----
> arch/arm/cpu/lh7a40x/start.S | 119 +++++++++++++++++----------------
> arch/arm/cpu/lh7a40x/u-boot.lds | 38 +++++++----
> arch/arm/cpu/s3c44b0/start.S | 131 +++++++++++++++++--------------------
> arch/arm/cpu/s3c44b0/u-boot.lds | 38 +++++++----
> arch/arm/cpu/sa1100/start.S | 119 +++++++++++++++++----------------
> arch/arm/cpu/sa1100/u-boot.lds | 38 +++++++----
> 18 files changed, 785 insertions(+), 666 deletions(-)
>
how about arm1136 and arm1176? Perhaps they both have relocation code
but also they try to use _datarel_* which are not exported by linker
anymore.
I have my own local patches but I think would be better if you change it
together with all other cpus.
> diff --git a/arch/arm/cpu/arm720t/start.S b/arch/arm/cpu/arm720t/start.S
> index 8cd267b..46050da 100644
> --- a/arch/arm/cpu/arm720t/start.S
> +++ b/arch/arm/cpu/arm720t/start.S
> @@ -81,14 +81,17 @@ _TEXT_BASE:
>
> /*
> * These are defined in the board-specific linker script.
> + * Subtracting _start from them lets the linker put their
> + * relative position in the executable instead of leaving
> + * them null.
> */
> -.globl _bss_start
> -_bss_start:
> - .word __bss_start
> +.globl _bss_start_ofs
> +_bss_start_ofs:
> + .word __bss_start - _start
>
> -.globl _bss_end
> -_bss_end:
> - .word _end
> +.globl _bss_end_ofs
> +_bss_end_ofs:
> + .word _end - _start
>
> #ifdef CONFIG_USE_IRQ
> /* IRQ stack memory (calculated at run-time) */
> @@ -107,30 +110,6 @@ FIQ_STACK_START:
> IRQ_STACK_START_IN:
> .word 0x0badc0de
>
> -.globl _datarel_start
> -_datarel_start:
> - .word __datarel_start
> -
> -.globl _datarelrolocal_start
> -_datarelrolocal_start:
> - .word __datarelrolocal_start
> -
> -.globl _datarellocal_start
> -_datarellocal_start:
> - .word __datarellocal_start
> -
> -.globl _datarelro_start
> -_datarelro_start:
> - .word __datarelro_start
> -
> -.globl _got_start
> -_got_start:
> - .word __got_start
> -
> -.globl _got_end
> -_got_end:
> - .word __got_end
> -
> /*
> * the actual reset code
> */
> @@ -184,9 +163,8 @@ stack_setup:
>
> adr r0, _start
> ldr r2, _TEXT_BASE
> - ldr r3, _bss_start
> - sub r2, r3, r2 /* r2<- size of armboot */
> - add r2, r0, r2 /* r2<- source end address */
> + ldr r3, _bss_start_ofs
> + add r2, r0, r3 /* r2<- source end address */
> cmp r0, r6
> beq clear_bss
>
> @@ -197,35 +175,53 @@ copy_loop:
> blo copy_loop
>
> #ifndef CONFIG_PRELOADER
> - /* fix got entries */
> - ldr r1, _TEXT_BASE /* Text base */
> - mov r0, r7 /* reloc addr */
> - ldr r2, _got_start /* addr in Flash */
> - ldr r3, _got_end /* addr in Flash */
> - sub r3, r3, r1
> - add r3, r3, r0
> - sub r2, r2, r1
> - add r2, r2, r0
> -
> + /*
> + * fix .rel.dyn relocations
> + */
> + ldr r0, _TEXT_BASE /* r0<- Text base */
> + sub r9, r7, r0 /* r9<- relocation offset */
> + ldr r10, _dynsym_start_ofs /* r10<- sym table ofs */
> + add r10, r10, r0 /* r10<- sym table in FLASH */
> + ldr r2, _rel_dyn_start_ofs /* r2<- rel dyn start ofs */
> + add r2, r2, r0 /* r2<- rel dyn start in FLASH */
> + ldr r3, _rel_dyn_end_ofs /* r3<- rel dyn end ofs */
> + add r3, r3, r0 /* r3<- rel dyn end in FLASH */
> fixloop:
> - ldr r4, [r2]
> - sub r4, r4, r1
> - add r4, r4, r0
> - str r4, [r2]
> - add r2, r2, #4
> + ldr r0, [r2] /* r0<- location to fix up, IN FLASH! */
> + add r0, r0, r9 /* r0<- location to fix up in RAM */
> + ldr r1, [r2, #4]
> + and r8, r1, #0xff
> + cmp r8, #23 /* relative fixup? */
> + beq fixrel
> + cmp r8, #2 /* absolute fixup? */
> + beq fixabs
> + /* ignore unknown type of fixup */
> + b fixnext
> +fixabs:
> + /* absolute fix: set location to (offset) symbol value */
> + mov r1, r1, LSR #4 /* r1<- symbol index in .dynsym */
> + add r1, r10, r1 /* r1<- address of symbol in table */
> + ldr r1, [r1, #4] /* r1<- symbol value */
> + add r1, r9 /* r1<- relocated sym addr */
> + b fixnext
> +fixrel:
> + /* relative fix: increase location by offset */
> + ldr r1, [r0]
> + add r1, r1, r9
> +fixnext:
> + str r1, [r0]
> + add r2, r2, #8 /* each rel.dyn entry is 8 bytes */
> cmp r2, r3
> blo fixloop
> #endif
>
> clear_bss:
> #ifndef CONFIG_PRELOADER
> - ldr r0, _bss_start
> - ldr r1, _bss_end
> + ldr r0, _bss_start_ofs
> + ldr r1, _bss_end_ofs
> ldr r3, _TEXT_BASE /* Text base */
> mov r4, r7 /* reloc addr */
> - sub r0, r0, r3
> add r0, r0, r4
> - sub r1, r1, r3
> add r1, r1, r4
> mov r2, #0x00000000 /* clear */
>
> @@ -242,18 +238,25 @@ clbss_l:str r2, [r0] /* clear loop... */
> * We are done. Do not return, instead branch to second part of board
> * initialization, now running from RAM.
> */
> - ldr r0, _TEXT_BASE
> - ldr r2, _board_init_r
> - sub r2, r2, r0
> - add r2, r2, r7 /* position from board_init_r in RAM */
> + ldr r0, _board_init_r_ofs
> + adr r1, _start
> + add lr, r0, r1
> + add lr, lr, r9
> /* setup parameters for board_init_r */
> mov r0, r5 /* gd_t */
> mov r1, r7 /* dest_addr */
> /* jump to it ... */
> - mov lr, r2
> mov pc, lr
>
> -_board_init_r: .word board_init_r
> +_board_init_r_ofs:
> + .word board_init_r - _start
> +
> +_rel_dyn_start_ofs:
> + .word __rel_dyn_start - _start
> +_rel_dyn_end_ofs:
> + .word __rel_dyn_end - _start
> +_dynsym_start_ofs:
> + .word __dynsym_start - _start
>
> /*
> *************************************************************************
> diff --git a/arch/arm/cpu/arm720t/u-boot.lds b/arch/arm/cpu/arm720t/u-boot.lds
> index 4a0bc70..0686e42 100644
> --- a/arch/arm/cpu/arm720t/u-boot.lds
> +++ b/arch/arm/cpu/arm720t/u-boot.lds
> @@ -40,29 +40,38 @@ SECTIONS
>
> . = ALIGN(4);
> .data : {
> - *(.data)
> - __datarel_start = .;
> - *(.data.rel)
> - __datarelrolocal_start = .;
> - *(.data.rel.ro.local)
> - __datarellocal_start = .;
> - *(.data.rel.local)
> - __datarelro_start = .;
> - *(.data.rel.ro)
> }
>
> - __got_start = .;
> . = ALIGN(4);
> - .got : { *(.got) }
>
> - __got_end = .;
> . = .;
> __u_boot_cmd_start = .;
> .u_boot_cmd : { *(.u_boot_cmd) }
> __u_boot_cmd_end = .;
>
> . = ALIGN(4);
> - __bss_start = .;
> - .bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
> - _end = .;
> +
> + .rel.dyn : {
> + __rel_dyn_start = .;
> + *(.rel*)
> + __rel_dyn_end = .;
> + }
> +
> + .dynsym : {
> + __dynsym_start = .;
> + *(.dynsym)
> + }
> +
> + .bss __rel_dyn_start (OVERLAY) : {
> + __bss_start = .;
> + *(.bss)
> + . = ALIGN(4);
> + _end = .;
> + }
> +
> + /DISCARD/ : { *(.dynstr*) }
> + /DISCARD/ : { *(.dynamic*) }
> + /DISCARD/ : { *(.plt*) }
> + /DISCARD/ : { *(.interp*) }
> + /DISCARD/ : { *(.gnu*) }
> }
> diff --git a/arch/arm/cpu/arm920t/start.S b/arch/arm/cpu/arm920t/start.S
> index d4edde7..01edb9b 100644
> --- a/arch/arm/cpu/arm920t/start.S
> +++ b/arch/arm/cpu/arm920t/start.S
> @@ -77,14 +77,17 @@ _TEXT_BASE:
>
> /*
> * These are defined in the board-specific linker script.
> + * Subtracting _start from them lets the linker put their
> + * relative position in the executable instead of leaving
> + * them null.
> */
> -.globl _bss_start
> -_bss_start:
> - .word __bss_start
> +.globl _bss_start_ofs
> +_bss_start_ofs:
> + .word __bss_start - _start
>
> -.globl _bss_end
> -_bss_end:
> - .word _end
> +.globl _bss_end_ofs
> +_bss_end_ofs:
> + .word _end - _start
>
> #ifdef CONFIG_USE_IRQ
> /* IRQ stack memory (calculated at run-time) */
> @@ -103,30 +106,6 @@ FIQ_STACK_START:
> IRQ_STACK_START_IN:
> .word 0x0badc0de
>
> -.globl _datarel_start
> -_datarel_start:
> - .word __datarel_start
> -
> -.globl _datarelrolocal_start
> -_datarelrolocal_start:
> - .word __datarelrolocal_start
> -
> -.globl _datarellocal_start
> -_datarellocal_start:
> - .word __datarellocal_start
> -
> -.globl _datarelro_start
> -_datarelro_start:
> - .word __datarelro_start
> -
> -.globl _got_start
> -_got_start:
> - .word __got_start
> -
> -.globl _got_end
> -_got_end:
> - .word __got_end
> -
> /*
> * the actual start code
> */
> @@ -230,9 +209,8 @@ stack_setup:
>
> adr r0, _start
> ldr r2, _TEXT_BASE
> - ldr r3, _bss_start
> - sub r2, r3, r2 /* r2<- size of armboot */
> - add r2, r0, r2 /* r2<- source end address */
> + ldr r3, _bss_start_ofs
> + add r2, r0, r3 /* r2<- source end address */
> cmp r0, r6
> beq clear_bss
>
> @@ -243,35 +221,53 @@ copy_loop:
> blo copy_loop
>
> #ifndef CONFIG_PRELOADER
> - /* fix got entries */
> - ldr r1, _TEXT_BASE /* Text base */
> - mov r0, r7 /* reloc addr */
> - ldr r2, _got_start /* addr in Flash */
> - ldr r3, _got_end /* addr in Flash */
> - sub r3, r3, r1
> - add r3, r3, r0
> - sub r2, r2, r1
> - add r2, r2, r0
> -
> + /*
> + * fix .rel.dyn relocations
> + */
> + ldr r0, _TEXT_BASE /* r0<- Text base */
> + sub r9, r7, r0 /* r9<- relocation offset */
> + ldr r10, _dynsym_start_ofs /* r10<- sym table ofs */
> + add r10, r10, r0 /* r10<- sym table in FLASH */
> + ldr r2, _rel_dyn_start_ofs /* r2<- rel dyn start ofs */
> + add r2, r2, r0 /* r2<- rel dyn start in FLASH */
> + ldr r3, _rel_dyn_end_ofs /* r3<- rel dyn end ofs */
> + add r3, r3, r0 /* r3<- rel dyn end in FLASH */
> fixloop:
> - ldr r4, [r2]
> - sub r4, r4, r1
> - add r4, r4, r0
> - str r4, [r2]
> - add r2, r2, #4
> + ldr r0, [r2] /* r0<- location to fix up, IN FLASH! */
> + add r0, r0, r9 /* r0<- location to fix up in RAM */
> + ldr r1, [r2, #4]
> + and r8, r1, #0xff
> + cmp r8, #23 /* relative fixup? */
> + beq fixrel
> + cmp r8, #2 /* absolute fixup? */
> + beq fixabs
> + /* ignore unknown type of fixup */
> + b fixnext
> +fixabs:
> + /* absolute fix: set location to (offset) symbol value */
> + mov r1, r1, LSR #4 /* r1<- symbol index in .dynsym */
> + add r1, r10, r1 /* r1<- address of symbol in table */
> + ldr r1, [r1, #4] /* r1<- symbol value */
> + add r1, r9 /* r1<- relocated sym addr */
> + b fixnext
> +fixrel:
> + /* relative fix: increase location by offset */
> + ldr r1, [r0]
> + add r1, r1, r9
> +fixnext:
> + str r1, [r0]
> + add r2, r2, #8 /* each rel.dyn entry is 8 bytes */
> cmp r2, r3
> blo fixloop
> #endif
>
> clear_bss:
> #ifndef CONFIG_PRELOADER
> - ldr r0, _bss_start
> - ldr r1, _bss_end
> + ldr r0, _bss_start_ofs
> + ldr r1, _bss_end_ofs
> ldr r3, _TEXT_BASE /* Text base */
> mov r4, r7 /* reloc addr */
> - sub r0, r0, r3
> add r0, r0, r4
> - sub r1, r1, r3
> add r1, r1, r4
> mov r2, #0x00000000 /* clear */
>
> @@ -289,24 +285,33 @@ clbss_l:str r2, [r0] /* clear loop... */
> * initialization, now running from RAM.
> */
> #ifdef CONFIG_NAND_SPL
> - ldr pc, _nand_boot
> + ldr r0, _nand_boot_ofs
> + mov pc, r0
>
> -_nand_boot: .word nand_boot
> +_nand_boot_ofs:
> + .word nand_boot
> #else
> - ldr r0, _TEXT_BASE
> - ldr r2, _board_init_r
> - sub r2, r2, r0
> - add r2, r2, r7 /* position from board_init_r in RAM */
> + ldr r0, _board_init_r_ofs
> + adr r1, _start
> + add lr, r0, r1
> + add lr, lr, r9
> /* setup parameters for board_init_r */
> mov r0, r5 /* gd_t */
> mov r1, r7 /* dest_addr */
> /* jump to it ... */
> - mov lr, r2
> mov pc, lr
>
> -_board_init_r: .word board_init_r
> +_board_init_r_ofs:
> + .word board_init_r - _start
> #endif
>
> +_rel_dyn_start_ofs:
> + .word __rel_dyn_start - _start
> +_rel_dyn_end_ofs:
> + .word __rel_dyn_end - _start
> +_dynsym_start_ofs:
> + .word __dynsym_start - _start
> +
> /*
> *************************************************************************
> *
> diff --git a/arch/arm/cpu/arm920t/u-boot.lds b/arch/arm/cpu/arm920t/u-boot.lds
> index 6985434..a6f8b56 100644
> --- a/arch/arm/cpu/arm920t/u-boot.lds
> +++ b/arch/arm/cpu/arm920t/u-boot.lds
> @@ -49,28 +49,38 @@ SECTIONS
> . = ALIGN(4);
> .data : {
> *(.data)
> - __datarel_start = .;
> - *(.data.rel)
> - __datarelrolocal_start = .;
> - *(.data.rel.ro.local)
> - __datarellocal_start = .;
> - *(.data.rel.local)
> - __datarelro_start = .;
> - *(.data.rel.ro)
> }
>
> - __got_start = .;
> . = ALIGN(4);
> - .got : { *(.got) }
>
> - __got_end = .;
> . = .;
> __u_boot_cmd_start = .;
> .u_boot_cmd : { *(.u_boot_cmd) }
> __u_boot_cmd_end = .;
>
> . = ALIGN(4);
> - __bss_start = .;
> - .bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
> - _end = .;
> +
> + .rel.dyn : {
> + __rel_dyn_start = .;
> + *(.rel*)
> + __rel_dyn_end = .;
> + }
> +
> + .dynsym : {
> + __dynsym_start = .;
> + *(.dynsym)
> + }
> +
> + .bss __rel_dyn_start (OVERLAY) : {
> + __bss_start = .;
> + *(.bss)
> + . = ALIGN(4);
> + _end = .;
> + }
> +
> + /DISCARD/ : { *(.dynstr*) }
> + /DISCARD/ : { *(.dynamic*) }
> + /DISCARD/ : { *(.plt*) }
> + /DISCARD/ : { *(.interp*) }
> + /DISCARD/ : { *(.gnu*) }
> }
> diff --git a/arch/arm/cpu/arm925t/start.S b/arch/arm/cpu/arm925t/start.S
> index 51229c6..ce590a7 100644
> --- a/arch/arm/cpu/arm925t/start.S
> +++ b/arch/arm/cpu/arm925t/start.S
> @@ -87,14 +87,17 @@ _TEXT_BASE:
>
> /*
> * These are defined in the board-specific linker script.
> + * Subtracting _start from them lets the linker put their
> + * relative position in the executable instead of leaving
> + * them null.
> */
> -.globl _bss_start
> -_bss_start:
> - .word __bss_start
> +.globl _bss_start_ofs
> +_bss_start_ofs:
> + .word __bss_start - _start
>
> -.globl _bss_end
> -_bss_end:
> - .word _end
> +.globl _bss_end_ofs
> +_bss_end_ofs:
> + .word _end - _start
>
> #ifdef CONFIG_USE_IRQ
> /* IRQ stack memory (calculated at run-time) */
> @@ -113,30 +116,6 @@ FIQ_STACK_START:
> IRQ_STACK_START_IN:
> .word 0x0badc0de
>
> -.globl _datarel_start
> -_datarel_start:
> - .word __datarel_start
> -
> -.globl _datarelrolocal_start
> -_datarelrolocal_start:
> - .word __datarelrolocal_start
> -
> -.globl _datarellocal_start
> -_datarellocal_start:
> - .word __datarellocal_start
> -
> -.globl _datarelro_start
> -_datarelro_start:
> - .word __datarelro_start
> -
> -.globl _got_start
> -_got_start:
> - .word __got_start
> -
> -.globl _got_end
> -_got_end:
> - .word __got_end
> -
> /*
> * the actual reset code
> */
> @@ -221,9 +200,8 @@ stack_setup:
>
> adr r0, _start
> ldr r2, _TEXT_BASE
> - ldr r3, _bss_start
> - sub r2, r3, r2 /* r2<- size of armboot */
> - add r2, r0, r2 /* r2<- source end address */
> + ldr r3, _bss_start_ofs
> + add r2, r0, r3 /* r2<- source end address */
> cmp r0, r6
> beq clear_bss
>
> @@ -234,35 +212,53 @@ copy_loop:
> blo copy_loop
>
> #ifndef CONFIG_PRELOADER
> - /* fix got entries */
> - ldr r1, _TEXT_BASE /* Text base */
> - mov r0, r7 /* reloc addr */
> - ldr r2, _got_start /* addr in Flash */
> - ldr r3, _got_end /* addr in Flash */
> - sub r3, r3, r1
> - add r3, r3, r0
> - sub r2, r2, r1
> - add r2, r2, r0
> -
> + /*
> + * fix .rel.dyn relocations
> + */
> + ldr r0, _TEXT_BASE /* r0<- Text base */
> + sub r9, r7, r0 /* r9<- relocation offset */
> + ldr r10, _dynsym_start_ofs /* r10<- sym table ofs */
> + add r10, r10, r0 /* r10<- sym table in FLASH */
> + ldr r2, _rel_dyn_start_ofs /* r2<- rel dyn start ofs */
> + add r2, r2, r0 /* r2<- rel dyn start in FLASH */
> + ldr r3, _rel_dyn_end_ofs /* r3<- rel dyn end ofs */
> + add r3, r3, r0 /* r3<- rel dyn end in FLASH */
> fixloop:
> - ldr r4, [r2]
> - sub r4, r4, r1
> - add r4, r4, r0
> - str r4, [r2]
> - add r2, r2, #4
> + ldr r0, [r2] /* r0<- location to fix up, IN FLASH! */
> + add r0, r0, r9 /* r0<- location to fix up in RAM */
> + ldr r1, [r2, #4]
> + and r8, r1, #0xff
> + cmp r8, #23 /* relative fixup? */
> + beq fixrel
> + cmp r8, #2 /* absolute fixup? */
> + beq fixabs
> + /* ignore unknown type of fixup */
> + b fixnext
> +fixabs:
> + /* absolute fix: set location to (offset) symbol value */
> + mov r1, r1, LSR #4 /* r1<- symbol index in .dynsym */
> + add r1, r10, r1 /* r1<- address of symbol in table */
> + ldr r1, [r1, #4] /* r1<- symbol value */
> + add r1, r9 /* r1<- relocated sym addr */
> + b fixnext
> +fixrel:
> + /* relative fix: increase location by offset */
> + ldr r1, [r0]
> + add r1, r1, r9
> +fixnext:
> + str r1, [r0]
> + add r2, r2, #8 /* each rel.dyn entry is 8 bytes */
> cmp r2, r3
> blo fixloop
> #endif
>
> clear_bss:
> #ifndef CONFIG_PRELOADER
> - ldr r0, _bss_start
> - ldr r1, _bss_end
> + ldr r0, _bss_start_ofs
> + ldr r1, _bss_end_ofs
> ldr r3, _TEXT_BASE /* Text base */
> mov r4, r7 /* reloc addr */
> - sub r0, r0, r3
> add r0, r0, r4
> - sub r1, r1, r3
> add r1, r1, r4
> mov r2, #0x00000000 /* clear */
>
> @@ -271,6 +267,8 @@ clbss_l:str r2, [r0] /* clear loop... */
> cmp r0, r1
> bne clbss_l
>
> + bl coloured_LED_init
> + bl red_LED_on
> #endif
>
> /*
> @@ -278,24 +276,33 @@ clbss_l:str r2, [r0] /* clear loop... */
> * initialization, now running from RAM.
> */
> #ifdef CONFIG_NAND_SPL
> - ldr pc, _nand_boot
> + ldr r0, _nand_boot_ofs
> + mov pc, r0
>
> -_nand_boot: .word nand_boot
> +_nand_boot_ofs:
> + .word nand_boot
> #else
> - ldr r0, _TEXT_BASE
> - ldr r2, _board_init_r
> - sub r2, r2, r0
> - add r2, r2, r7 /* position from board_init_r in RAM */
> + ldr r0, _board_init_r_ofs
> + adr r1, _start
> + add lr, r0, r1
> + add lr, lr, r9
> /* setup parameters for board_init_r */
> mov r0, r5 /* gd_t */
> mov r1, r7 /* dest_addr */
> /* jump to it ... */
> - mov lr, r2
> mov pc, lr
>
> -_board_init_r: .word board_init_r
> +_board_init_r_ofs:
> + .word board_init_r - _start
> #endif
>
> +_rel_dyn_start_ofs:
> + .word __rel_dyn_start - _start
> +_rel_dyn_end_ofs:
> + .word __rel_dyn_end - _start
> +_dynsym_start_ofs:
> + .word __dynsym_start - _start
> +
> /*
> *************************************************************************
> *
> diff --git a/arch/arm/cpu/arm925t/u-boot.lds b/arch/arm/cpu/arm925t/u-boot.lds
> index 1c4e9bc..7b53edb 100644
> --- a/arch/arm/cpu/arm925t/u-boot.lds
> +++ b/arch/arm/cpu/arm925t/u-boot.lds
> @@ -44,28 +44,38 @@ SECTIONS
> . = ALIGN(4);
> .data : {
> *(.data)
> - __datarel_start = .;
> - *(.data.rel)
> - __datarelrolocal_start = .;
> - *(.data.rel.ro.local)
> - __datarellocal_start = .;
> - *(.data.rel.local)
> - __datarelro_start = .;
> - *(.data.rel.ro)
> }
>
> - __got_start = .;
> . = ALIGN(4);
> - .got : { *(.got) }
>
> - __got_end = .;
> . = .;
> __u_boot_cmd_start = .;
> .u_boot_cmd : { *(.u_boot_cmd) }
> __u_boot_cmd_end = .;
>
> . = ALIGN(4);
> - __bss_start = .;
> - .bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
> - _end = .;
> +
> + .rel.dyn : {
> + __rel_dyn_start = .;
> + *(.rel*)
> + __rel_dyn_end = .;
> + }
> +
> + .dynsym : {
> + __dynsym_start = .;
> + *(.dynsym)
> + }
> +
> + .bss __rel_dyn_start (OVERLAY) : {
> + __bss_start = .;
> + *(.bss)
> + . = ALIGN(4);
> + _end = .;
> + }
> +
> + /DISCARD/ : { *(.dynstr*) }
> + /DISCARD/ : { *(.dynamic*) }
> + /DISCARD/ : { *(.plt*) }
> + /DISCARD/ : { *(.interp*) }
> + /DISCARD/ : { *(.gnu*) }
> }
> diff --git a/arch/arm/cpu/arm946es/start.S b/arch/arm/cpu/arm946es/start.S
> index cad43ba..f4950f7 100644
> --- a/arch/arm/cpu/arm946es/start.S
> +++ b/arch/arm/cpu/arm946es/start.S
> @@ -10,6 +10,7 @@
> * Copyright (c) 2002 Gary Jennejohn<garyj@denx.de>
> * Copyright (c) 2003 Richard Woodruff<r-woodruff2@ti.com>
> * Copyright (c) 2003 Kshitij<kshitij@ti.com>
> + * Copyright (c) 2010 Albert Aribaud<albert.aribaud@free.fr>
> *
> * See file CREDITS for list of people who contributed to this
> * project.
> @@ -71,6 +72,7 @@ _fiq:
>
> .balignl 16,0xdeadbeef
>
> +_vectors_end:
>
> /*
> *************************************************************************
> @@ -91,14 +93,17 @@ _TEXT_BASE:
>
> /*
> * These are defined in the board-specific linker script.
> + * Subtracting _start from them lets the linker put their
> + * relative position in the executable instead of leaving
> + * them null.
> */
> -.globl _bss_start
> -_bss_start:
> - .word __bss_start
> +.globl _bss_start_ofs
> +_bss_start_ofs:
> + .word __bss_start - _start
>
> -.globl _bss_end
> -_bss_end:
> - .word _end
> +.globl _bss_end_ofs
> +_bss_end_ofs:
> + .word _end - _start
>
> #ifdef CONFIG_USE_IRQ
> /* IRQ stack memory (calculated at run-time) */
> @@ -117,30 +122,6 @@ FIQ_STACK_START:
> IRQ_STACK_START_IN:
> .word 0x0badc0de
>
> -.globl _datarel_start
> -_datarel_start:
> - .word __datarel_start
> -
> -.globl _datarelrolocal_start
> -_datarelrolocal_start:
> - .word __datarelrolocal_start
> -
> -.globl _datarellocal_start
> -_datarellocal_start:
> - .word __datarellocal_start
> -
> -.globl _datarelro_start
> -_datarelro_start:
> - .word __datarelro_start
> -
> -.globl _got_start
> -_got_start:
> - .word __got_start
> -
> -.globl _got_end
> -_got_end:
> - .word __got_end
> -
> /*
> * the actual reset code
> */
> @@ -190,9 +171,8 @@ stack_setup:
>
> adr r0, _start
> ldr r2, _TEXT_BASE
> - ldr r3, _bss_start
> - sub r2, r3, r2 /* r2<- size of armboot */
> - add r2, r0, r2 /* r2<- source end address */
> + ldr r3, _bss_start_ofs
> + add r2, r0, r3 /* r2<- source end address */
> cmp r0, r6
> beq clear_bss
>
> @@ -203,42 +183,60 @@ copy_loop:
> blo copy_loop
>
> #ifndef CONFIG_PRELOADER
> - /* fix got entries */
> - ldr r1, _TEXT_BASE /* Text base */
> - mov r0, r7 /* reloc addr */
> - ldr r2, _got_start /* addr in Flash */
> - ldr r3, _got_end /* addr in Flash */
> - sub r3, r3, r1
> - add r3, r3, r0
> - sub r2, r2, r1
> - add r2, r2, r0
> -
> + /*
> + * fix .rel.dyn relocations
> + */
> + ldr r0, _TEXT_BASE /* r0<- Text base */
> + sub r9, r7, r0 /* r9<- relocation offset */
> + ldr r10, _dynsym_start_ofs /* r10<- sym table ofs */
> + add r10, r10, r0 /* r10<- sym table in FLASH */
> + ldr r2, _rel_dyn_start_ofs /* r2<- rel dyn start ofs */
> + add r2, r2, r0 /* r2<- rel dyn start in FLASH */
> + ldr r3, _rel_dyn_end_ofs /* r3<- rel dyn end ofs */
> + add r3, r3, r0 /* r3<- rel dyn end in FLASH */
> fixloop:
> - ldr r4, [r2]
> - sub r4, r4, r1
> - add r4, r4, r0
> - str r4, [r2]
> - add r2, r2, #4
> + ldr r0, [r2] /* r0<- location to fix up, IN FLASH! */
> + add r0, r0, r9 /* r0<- location to fix up in RAM */
> + ldr r1, [r2, #4]
> + and r8, r1, #0xff
> + cmp r8, #23 /* relative fixup? */
> + beq fixrel
> + cmp r8, #2 /* absolute fixup? */
> + beq fixabs
> + /* ignore unknown type of fixup */
> + b fixnext
> +fixabs:
> + /* absolute fix: set location to (offset) symbol value */
> + mov r1, r1, LSR #4 /* r1<- symbol index in .dynsym */
> + add r1, r10, r1 /* r1<- address of symbol in table */
> + ldr r1, [r1, #4] /* r1<- symbol value */
> + add r1, r9 /* r1<- relocated sym addr */
> + b fixnext
> +fixrel:
> + /* relative fix: increase location by offset */
> + ldr r1, [r0]
> + add r1, r1, r9
> +fixnext:
> + str r1, [r0]
> + add r2, r2, #8 /* each rel.dyn entry is 8 bytes */
> cmp r2, r3
> blo fixloop
> #endif
>
> clear_bss:
> #ifndef CONFIG_PRELOADER
> - ldr r0, _bss_start
> - ldr r1, _bss_end
> + ldr r0, _bss_start_ofs
> + ldr r1, _bss_end_ofs
> ldr r3, _TEXT_BASE /* Text base */
> mov r4, r7 /* reloc addr */
> - sub r0, r0, r3
> add r0, r0, r4
> - sub r1, r1, r3
> add r1, r1, r4
> mov r2, #0x00000000 /* clear */
>
> clbss_l:str r2, [r0] /* clear loop... */
> add r0, r0, #4
> cmp r0, r1
> - bne clbss_l
> + blo clbss_l
> #endif
>
> /*
> @@ -250,20 +248,27 @@ clbss_l:str r2, [r0] /* clear loop... */
>
> _nand_boot: .word nand_boot
> #else
> - ldr r0, _TEXT_BASE
> - ldr r2, _board_init_r
> - sub r2, r2, r0
> - add r2, r2, r7 /* position from board_init_r in RAM */
> + ldr r0, _board_init_r_ofs
> + adr r1, _start
> + add lr, r0, r1
> + add lr, lr, r9
> /* setup parameters for board_init_r */
> mov r0, r5 /* gd_t */
> mov r1, r7 /* dest_addr */
> /* jump to it ... */
> - mov lr, r2
> mov pc, lr
>
> -_board_init_r: .word board_init_r
> +_board_init_r_ofs:
> + .word board_init_r - _start
> #endif
>
> +_rel_dyn_start_ofs:
> + .word __rel_dyn_start - _start
> +_rel_dyn_end_ofs:
> + .word __rel_dyn_end - _start
> +_dynsym_start_ofs:
> + .word __dynsym_start - _start
> +
> /*
> *************************************************************************
> *
> diff --git a/arch/arm/cpu/arm946es/u-boot.lds b/arch/arm/cpu/arm946es/u-boot.lds
> index 6535963..eb91979 100644
> --- a/arch/arm/cpu/arm946es/u-boot.lds
> +++ b/arch/arm/cpu/arm946es/u-boot.lds
> @@ -41,28 +41,38 @@ SECTIONS
> . = ALIGN(4);
> .data : {
> *(.data)
> - __datarel_start = .;
> - *(.data.rel)
> - __datarelrolocal_start = .;
> - *(.data.rel.ro.local)
> - __datarellocal_start = .;
> - *(.data.rel.local)
> - __datarelro_start = .;
> - *(.data.rel.ro)
> }
>
> - __got_start = .;
> . = ALIGN(4);
> - .got : { *(.got) }
>
> - __got_end = .;
> . = .;
> __u_boot_cmd_start = .;
> .u_boot_cmd : { *(.u_boot_cmd) }
> __u_boot_cmd_end = .;
>
> . = ALIGN(4);
> - __bss_start = .;
> - .bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
> - _end = .;
> +
> + .rel.dyn : {
> + __rel_dyn_start = .;
> + *(.rel*)
> + __rel_dyn_end = .;
> + }
> +
> + .dynsym : {
> + __dynsym_start = .;
> + *(.dynsym)
> + }
> +
> + .bss __rel_dyn_start (OVERLAY) : {
> + __bss_start = .;
> + *(.bss)
> + . = ALIGN(4);
> + _end = .;
> + }
> +
> + /DISCARD/ : { *(.dynstr*) }
> + /DISCARD/ : { *(.dynamic*) }
> + /DISCARD/ : { *(.plt*) }
> + /DISCARD/ : { *(.interp*) }
> + /DISCARD/ : { *(.gnu*) }
> }
> diff --git a/arch/arm/cpu/arm_intcm/start.S b/arch/arm/cpu/arm_intcm/start.S
> index 957ca34..fcaba30 100644
> --- a/arch/arm/cpu/arm_intcm/start.S
> +++ b/arch/arm/cpu/arm_intcm/start.S
> @@ -89,14 +89,17 @@ _TEXT_BASE:
>
> /*
> * These are defined in the board-specific linker script.
> + * Subtracting _start from them lets the linker put their
> + * relative position in the executable instead of leaving
> + * them null.
> */
> -.globl _bss_start
> -_bss_start:
> - .word __bss_start
> +.globl _bss_start_ofs
> +_bss_start_ofs:
> + .word __bss_start - _start
>
> -.globl _bss_end
> -_bss_end:
> - .word _end
> +.globl _bss_end_ofs
> +_bss_end_ofs:
> + .word _end - _start
>
> #ifdef CONFIG_USE_IRQ
> /* IRQ stack memory (calculated at run-time) */
> @@ -115,30 +118,6 @@ FIQ_STACK_START:
> IRQ_STACK_START_IN:
> .word 0x0badc0de
>
> -.globl _datarel_start
> -_datarel_start:
> - .word __datarel_start
> -
> -.globl _datarelrolocal_start
> -_datarelrolocal_start:
> - .word __datarelrolocal_start
> -
> -.globl _datarellocal_start
> -_datarellocal_start:
> - .word __datarellocal_start
> -
> -.globl _datarelro_start
> -_datarelro_start:
> - .word __datarelro_start
> -
> -.globl _got_start
> -_got_start:
> - .word __got_start
> -
> -.globl _got_end
> -_got_end:
> - .word __got_end
> -
> /*
> * the actual reset code
> */
> @@ -188,9 +167,8 @@ stack_setup:
>
> adr r0, _start
> ldr r2, _TEXT_BASE
> - ldr r3, _bss_start
> - sub r2, r3, r2 /* r2<- size of armboot */
> - add r2, r0, r2 /* r2<- source end address */
> + ldr r3, _bss_start_ofs
> + add r2, r0, r3 /* r2<- source end address */
> cmp r0, r6
> beq clear_bss
>
> @@ -201,35 +179,53 @@ copy_loop:
> blo copy_loop
>
> #ifndef CONFIG_PRELOADER
> - /* fix got entries */
> - ldr r1, _TEXT_BASE /* Text base */
> - mov r0, r7 /* reloc addr */
> - ldr r2, _got_start /* addr in Flash */
> - ldr r3, _got_end /* addr in Flash */
> - sub r3, r3, r1
> - add r3, r3, r0
> - sub r2, r2, r1
> - add r2, r2, r0
> -
> + /*
> + * fix .rel.dyn relocations
> + */
> + ldr r0, _TEXT_BASE /* r0<- Text base */
> + sub r9, r7, r0 /* r9<- relocation offset */
> + ldr r10, _dynsym_start_ofs /* r10<- sym table ofs */
> + add r10, r10, r0 /* r10<- sym table in FLASH */
> + ldr r2, _rel_dyn_start_ofs /* r2<- rel dyn start ofs */
> + add r2, r2, r0 /* r2<- rel dyn start in FLASH */
> + ldr r3, _rel_dyn_end_ofs /* r3<- rel dyn end ofs */
> + add r3, r3, r0 /* r3<- rel dyn end in FLASH */
> fixloop:
> - ldr r4, [r2]
> - sub r4, r4, r1
> - add r4, r4, r0
> - str r4, [r2]
> - add r2, r2, #4
> + ldr r0, [r2] /* r0<- location to fix up, IN FLASH! */
> + add r0, r0, r9 /* r0<- location to fix up in RAM */
> + ldr r1, [r2, #4]
> + and r8, r1, #0xff
> + cmp r8, #23 /* relative fixup? */
> + beq fixrel
> + cmp r8, #2 /* absolute fixup? */
> + beq fixabs
> + /* ignore unknown type of fixup */
> + b fixnext
> +fixabs:
> + /* absolute fix: set location to (offset) symbol value */
> + mov r1, r1, LSR #4 /* r1<- symbol index in .dynsym */
> + add r1, r10, r1 /* r1<- address of symbol in table */
> + ldr r1, [r1, #4] /* r1<- symbol value */
> + add r1, r9 /* r1<- relocated sym addr */
> + b fixnext
> +fixrel:
> + /* relative fix: increase location by offset */
> + ldr r1, [r0]
> + add r1, r1, r9
> +fixnext:
> + str r1, [r0]
> + add r2, r2, #8 /* each rel.dyn entry is 8 bytes */
> cmp r2, r3
> blo fixloop
> #endif
>
> clear_bss:
> #ifndef CONFIG_PRELOADER
> - ldr r0, _bss_start
> - ldr r1, _bss_end
> + ldr r0, _bss_start_ofs
> + ldr r1, _bss_end_ofs
> ldr r3, _TEXT_BASE /* Text base */
> mov r4, r7 /* reloc addr */
> - sub r0, r0, r3
> add r0, r0, r4
> - sub r1, r1, r3
> add r1, r1, r4
> mov r2, #0x00000000 /* clear */
>
> @@ -246,18 +242,33 @@ clbss_l:str r2, [r0] /* clear loop... */
> * We are done. Do not return, instead branch to second part of board
> * initialization, now running from RAM.
> */
> - ldr r0, _TEXT_BASE
> - ldr r2, _board_init_r
> - sub r2, r2, r0
> - add r2, r2, r7 /* position from board_init_r in RAM */
> +#ifdef CONFIG_NAND_SPL
> + ldr r0, _nand_boot_ofs
> + mov pc, r0
> +
> +_nand_boot_ofs:
> + .word nand_boot
> +#else
> + ldr r0, _board_init_r_ofs
> + adr r1, _start
> + add lr, r0, r1
> + add lr, lr, r9
> /* setup parameters for board_init_r */
> mov r0, r5 /* gd_t */
> mov r1, r7 /* dest_addr */
> /* jump to it ... */
> - mov lr, r2
> mov pc, lr
>
> -_board_init_r: .word board_init_r
> +_board_init_r_ofs:
> + .word board_init_r - _start
> +#endif
> +
> +_rel_dyn_start_ofs:
> + .word __rel_dyn_start - _start
> +_rel_dyn_end_ofs:
> + .word __rel_dyn_end - _start
> +_dynsym_start_ofs:
> + .word __dynsym_start - _start
>
> /*
> *************************************************************************
> diff --git a/arch/arm/cpu/arm_intcm/u-boot.lds b/arch/arm/cpu/arm_intcm/u-boot.lds
> index 242c7ec..3b5c18d 100644
> --- a/arch/arm/cpu/arm_intcm/u-boot.lds
> +++ b/arch/arm/cpu/arm_intcm/u-boot.lds
> @@ -41,28 +41,38 @@ SECTIONS
> . = ALIGN(4);
> .data : {
> *(.data)
> - __datarel_start = .;
> - *(.data.rel)
> - __datarelrolocal_start = .;
> - *(.data.rel.ro.local)
> - __datarellocal_start = .;
> - *(.data.rel.local)
> - __datarelro_start = .;
> - *(.data.rel.ro)
> }
>
> - __got_start = .;
> . = ALIGN(4);
> - .got : { *(.got) }
>
> - __got_end = .;
> . = .;
> __u_boot_cmd_start = .;
> .u_boot_cmd : { *(.u_boot_cmd) }
> __u_boot_cmd_end = .;
>
> . = ALIGN(4);
> - __bss_start = .;
> - .bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
> - _end = .;
> +
> + .rel.dyn : {
> + __rel_dyn_start = .;
> + *(.rel*)
> + __rel_dyn_end = .;
> + }
> +
> + .dynsym : {
> + __dynsym_start = .;
> + *(.dynsym)
> + }
> +
> + .bss __rel_dyn_start (OVERLAY) : {
> + __bss_start = .;
> + *(.bss)
> + . = ALIGN(4);
> + _end = .;
> + }
> +
> + /DISCARD/ : { *(.dynstr*) }
> + /DISCARD/ : { *(.dynamic*) }
> + /DISCARD/ : { *(.plt*) }
> + /DISCARD/ : { *(.interp*) }
> + /DISCARD/ : { *(.gnu*) }
> }
> diff --git a/arch/arm/cpu/ixp/start.S b/arch/arm/cpu/ixp/start.S
> index 8d1aebc..d1ab19b 100644
> --- a/arch/arm/cpu/ixp/start.S
> +++ b/arch/arm/cpu/ixp/start.S
> @@ -100,14 +100,17 @@ _TEXT_BASE:
>
> /*
> * These are defined in the board-specific linker script.
> + * Subtracting _start from them lets the linker put their
> + * relative position in the executable instead of leaving
> + * them null.
> */
> -.globl _bss_start
> -_bss_start:
> - .word __bss_start
> +.globl _bss_start_ofs
> +_bss_start_ofs:
> + .word __bss_start - _start
>
> -.globl _bss_end
> -_bss_end:
> - .word _end
> +.globl _bss_end_ofs
> +_bss_end_ofs:
> + .word _end - _start
>
> #ifdef CONFIG_USE_IRQ
> /* IRQ stack memory (calculated at run-time) */
> @@ -126,30 +129,6 @@ FIQ_STACK_START:
> IRQ_STACK_START_IN:
> .word 0x0badc0de
>
> -.globl _datarel_start
> -_datarel_start:
> - .word __datarel_start
> -
> -.globl _datarelrolocal_start
> -_datarelrolocal_start:
> - .word __datarelrolocal_start
> -
> -.globl _datarellocal_start
> -_datarellocal_start:
> - .word __datarellocal_start
> -
> -.globl _datarelro_start
> -_datarelro_start:
> - .word __datarelro_start
> -
> -.globl _got_start
> -_got_start:
> - .word __got_start
> -
> -.globl _got_end
> -_got_end:
> - .word __got_end
> -
> /*
> * the actual reset code
> */
> @@ -314,9 +293,8 @@ stack_setup:
>
> adr r0, _start
> ldr r2, _TEXT_BASE
> - ldr r3, _bss_start
> - sub r2, r3, r2 /* r2<- size of armboot */
> - add r2, r0, r2 /* r2<- source end address */
> + ldr r3, _bss_start_ofs
> + add r2, r0, r3 /* r2<- source end address */
> cmp r0, r6
> beq clear_bss
>
> @@ -327,35 +305,53 @@ copy_loop:
> blo copy_loop
>
> #ifndef CONFIG_PRELOADER
> - /* fix got entries */
> - ldr r1, _TEXT_BASE /* Text base */
> - mov r0, r7 /* reloc addr */
> - ldr r2, _got_start /* addr in Flash */
> - ldr r3, _got_end /* addr in Flash */
> - sub r3, r3, r1
> - add r3, r3, r0
> - sub r2, r2, r1
> - add r2, r2, r0
> -
> + /*
> + * fix .rel.dyn relocations
> + */
> + ldr r0, _TEXT_BASE /* r0<- Text base */
> + sub r9, r7, r0 /* r9<- relocation offset */
> + ldr r10, _dynsym_start_ofs /* r10<- sym table ofs */
> + add r10, r10, r0 /* r10<- sym table in FLASH */
> + ldr r2, _rel_dyn_start_ofs /* r2<- rel dyn start ofs */
> + add r2, r2, r0 /* r2<- rel dyn start in FLASH */
> + ldr r3, _rel_dyn_end_ofs /* r3<- rel dyn end ofs */
> + add r3, r3, r0 /* r3<- rel dyn end in FLASH */
> fixloop:
> - ldr r4, [r2]
> - sub r4, r4, r1
> - add r4, r4, r0
> - str r4, [r2]
> - add r2, r2, #4
> + ldr r0, [r2] /* r0<- location to fix up, IN FLASH! */
> + add r0, r0, r9 /* r0<- location to fix up in RAM */
> + ldr r1, [r2, #4]
> + and r8, r1, #0xff
> + cmp r8, #23 /* relative fixup? */
> + beq fixrel
> + cmp r8, #2 /* absolute fixup? */
> + beq fixabs
> + /* ignore unknown type of fixup */
> + b fixnext
> +fixabs:
> + /* absolute fix: set location to (offset) symbol value */
> + mov r1, r1, LSR #4 /* r1<- symbol index in .dynsym */
> + add r1, r10, r1 /* r1<- address of symbol in table */
> + ldr r1, [r1, #4] /* r1<- symbol value */
> + add r1, r9 /* r1<- relocated sym addr */
> + b fixnext
> +fixrel:
> + /* relative fix: increase location by offset */
> + ldr r1, [r0]
> + add r1, r1, r9
> +fixnext:
> + str r1, [r0]
> + add r2, r2, #8 /* each rel.dyn entry is 8 bytes */
> cmp r2, r3
> blo fixloop
> #endif
>
> clear_bss:
> #ifndef CONFIG_PRELOADER
> - ldr r0, _bss_start
> - ldr r1, _bss_end
> + ldr r0, _bss_start_ofs
> + ldr r1, _bss_end_ofs
> ldr r3, _TEXT_BASE /* Text base */
> mov r4, r7 /* reloc addr */
> - sub r0, r0, r3
> add r0, r0, r4
> - sub r1, r1, r3
> add r1, r1, r4
> mov r2, #0x00000000 /* clear */
>
> @@ -372,19 +368,25 @@ clbss_l:str r2, [r0] /* clear loop... */
> * We are done. Do not return, instead branch to second part of board
> * initialization, now running from RAM.
> */
> - ldr r0, _TEXT_BASE
> - ldr r2, _board_init_r
> - sub r2, r2, r0
> - add r2, r2, r7 /* position from board_init_r in RAM */
> + ldr r0, _board_init_r_ofs
> + adr r1, _start
> + add lr, r0, r1
> + add lr, lr, r9
> /* setup parameters for board_init_r */
> mov r0, r5 /* gd_t */
> mov r1, r7 /* dest_addr */
> /* jump to it ... */
> - mov lr, r2
> mov pc, lr
>
> -_board_init_r: .word board_init_r
> +_board_init_r_ofs:
> + .word board_init_r - _start
>
> +_rel_dyn_start_ofs:
> + .word __rel_dyn_start - _start
> +_rel_dyn_end_ofs:
> + .word __rel_dyn_end - _start
> +_dynsym_start_ofs:
> + .word __dynsym_start - _start
>
> /****************************************************************************/
> /* */
> diff --git a/arch/arm/cpu/ixp/u-boot.lds b/arch/arm/cpu/ixp/u-boot.lds
> index f3d9dc5..a55eb8a 100644
> --- a/arch/arm/cpu/ixp/u-boot.lds
> +++ b/arch/arm/cpu/ixp/u-boot.lds
> @@ -41,28 +41,38 @@ SECTIONS
> . = ALIGN(4);
> .data : {
> *(.data)
> - __datarel_start = .;
> - *(.data.rel)
> - __datarelrolocal_start = .;
> - *(.data.rel.ro.local)
> - __datarellocal_start = .;
> - *(.data.rel.local)
> - __datarelro_start = .;
> - *(.data.rel.ro)
> }
>
> - __got_start = .;
> . = ALIGN(4);
> - .got : { *(.got) }
>
> - __got_end = .;
> . = .;
> __u_boot_cmd_start = .;
> .u_boot_cmd : { *(.u_boot_cmd) }
> __u_boot_cmd_end = .;
>
> . = ALIGN(4);
> - __bss_start = .;
> - .bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
> - _end = .;
> +
> + .rel.dyn : {
> + __rel_dyn_start = .;
> + *(.rel*)
> + __rel_dyn_end = .;
> + }
> +
> + .dynsym : {
> + __dynsym_start = .;
> + *(.dynsym)
> + }
> +
> + .bss __rel_dyn_start (OVERLAY) : {
> + __bss_start = .;
> + *(.bss)
> + . = ALIGN(4);
> + _end = .;
> + }
> +
> + /DISCARD/ : { *(.dynstr*) }
> + /DISCARD/ : { *(.dynamic*) }
> + /DISCARD/ : { *(.plt*) }
> + /DISCARD/ : { *(.interp*) }
> + /DISCARD/ : { *(.gnu*) }
> }
> diff --git a/arch/arm/cpu/lh7a40x/start.S b/arch/arm/cpu/lh7a40x/start.S
> index fd8a40b..5cf477b 100644
> --- a/arch/arm/cpu/lh7a40x/start.S
> +++ b/arch/arm/cpu/lh7a40x/start.S
> @@ -77,14 +77,17 @@ _TEXT_BASE:
>
> /*
> * These are defined in the board-specific linker script.
> + * Subtracting _start from them lets the linker put their
> + * relative position in the executable instead of leaving
> + * them null.
> */
> -.globl _bss_start
> -_bss_start:
> - .word __bss_start
> +.globl _bss_start_ofs
> +_bss_start_ofs:
> + .word __bss_start - _start
>
> -.globl _bss_end
> -_bss_end:
> - .word _end
> +.globl _bss_end_ofs
> +_bss_end_ofs:
> + .word _end - _start
>
> #ifdef CONFIG_USE_IRQ
> /* IRQ stack memory (calculated at run-time) */
> @@ -103,30 +106,6 @@ FIQ_STACK_START:
> IRQ_STACK_START_IN:
> .word 0x0badc0de
>
> -.globl _datarel_start
> -_datarel_start:
> - .word __datarel_start
> -
> -.globl _datarelrolocal_start
> -_datarelrolocal_start:
> - .word __datarelrolocal_start
> -
> -.globl _datarellocal_start
> -_datarellocal_start:
> - .word __datarellocal_start
> -
> -.globl _datarelro_start
> -_datarelro_start:
> - .word __datarelro_start
> -
> -.globl _got_start
> -_got_start:
> - .word __got_start
> -
> -.globl _got_end
> -_got_end:
> - .word __got_end
> -
> /*
> * the actual reset code
> */
> @@ -201,9 +180,8 @@ stack_setup:
>
> adr r0, _start
> ldr r2, _TEXT_BASE
> - ldr r3, _bss_start
> - sub r2, r3, r2 /* r2<- size of armboot */
> - add r2, r0, r2 /* r2<- source end address */
> + ldr r3, _bss_start_ofs
> + add r2, r0, r3 /* r2<- source end address */
> cmp r0, r6
> beq clear_bss
>
> @@ -214,35 +192,53 @@ copy_loop:
> blo copy_loop
>
> #ifndef CONFIG_PRELOADER
> - /* fix got entries */
> - ldr r1, _TEXT_BASE /* Text base */
> - mov r0, r7 /* reloc addr */
> - ldr r2, _got_start /* addr in Flash */
> - ldr r3, _got_end /* addr in Flash */
> - sub r3, r3, r1
> - add r3, r3, r0
> - sub r2, r2, r1
> - add r2, r2, r0
> -
> + /*
> + * fix .rel.dyn relocations
> + */
> + ldr r0, _TEXT_BASE /* r0<- Text base */
> + sub r9, r7, r0 /* r9<- relocation offset */
> + ldr r10, _dynsym_start_ofs /* r10<- sym table ofs */
> + add r10, r10, r0 /* r10<- sym table in FLASH */
> + ldr r2, _rel_dyn_start_ofs /* r2<- rel dyn start ofs */
> + add r2, r2, r0 /* r2<- rel dyn start in FLASH */
> + ldr r3, _rel_dyn_end_ofs /* r3<- rel dyn end ofs */
> + add r3, r3, r0 /* r3<- rel dyn end in FLASH */
> fixloop:
> - ldr r4, [r2]
> - sub r4, r4, r1
> - add r4, r4, r0
> - str r4, [r2]
> - add r2, r2, #4
> + ldr r0, [r2] /* r0<- location to fix up, IN FLASH! */
> + add r0, r0, r9 /* r0<- location to fix up in RAM */
> + ldr r1, [r2, #4]
> + and r8, r1, #0xff
> + cmp r8, #23 /* relative fixup? */
> + beq fixrel
> + cmp r8, #2 /* absolute fixup? */
> + beq fixabs
> + /* ignore unknown type of fixup */
> + b fixnext
> +fixabs:
> + /* absolute fix: set location to (offset) symbol value */
> + mov r1, r1, LSR #4 /* r1<- symbol index in .dynsym */
> + add r1, r10, r1 /* r1<- address of symbol in table */
> + ldr r1, [r1, #4] /* r1<- symbol value */
> + add r1, r9 /* r1<- relocated sym addr */
> + b fixnext
> +fixrel:
> + /* relative fix: increase location by offset */
> + ldr r1, [r0]
> + add r1, r1, r9
> +fixnext:
> + str r1, [r0]
> + add r2, r2, #8 /* each rel.dyn entry is 8 bytes */
> cmp r2, r3
> blo fixloop
> #endif
>
> clear_bss:
> #ifndef CONFIG_PRELOADER
> - ldr r0, _bss_start
> - ldr r1, _bss_end
> + ldr r0, _bss_start_ofs
> + ldr r1, _bss_end_ofs
> ldr r3, _TEXT_BASE /* Text base */
> mov r4, r7 /* reloc addr */
> - sub r0, r0, r3
> add r0, r0, r4
> - sub r1, r1, r3
> add r1, r1, r4
> mov r2, #0x00000000 /* clear */
>
> @@ -256,18 +252,25 @@ clbss_l:str r2, [r0] /* clear loop... */
> * We are done. Do not return, instead branch to second part of board
> * initialization, now running from RAM.
> */
> - ldr r0, _TEXT_BASE
> - ldr r2, _board_init_r
> - sub r2, r2, r0
> - add r2, r2, r7 /* position from board_init_r in RAM */
> + ldr r0, _board_init_r_ofs
> + adr r1, _start
> + add lr, r0, r1
> + add lr, lr, r9
> /* setup parameters for board_init_r */
> mov r0, r5 /* gd_t */
> mov r1, r7 /* dest_addr */
> /* jump to it ... */
> - mov lr, r2
> mov pc, lr
>
> -_board_init_r: .word board_init_r
> +_board_init_r_ofs:
> + .word board_init_r - _start
> +
> +_rel_dyn_start_ofs:
> + .word __rel_dyn_start - _start
> +_rel_dyn_end_ofs:
> + .word __rel_dyn_end - _start
> +_dynsym_start_ofs:
> + .word __dynsym_start - _start
>
> /*
> *************************************************************************
> diff --git a/arch/arm/cpu/lh7a40x/u-boot.lds b/arch/arm/cpu/lh7a40x/u-boot.lds
> index cb55b0a..463237d 100644
> --- a/arch/arm/cpu/lh7a40x/u-boot.lds
> +++ b/arch/arm/cpu/lh7a40x/u-boot.lds
> @@ -41,28 +41,38 @@ SECTIONS
> . = ALIGN(4);
> .data : {
> *(.data)
> - __datarel_start = .;
> - *(.data.rel)
> - __datarelrolocal_start = .;
> - *(.data.rel.ro.local)
> - __datarellocal_start = .;
> - *(.data.rel.local)
> - __datarelro_start = .;
> - *(.data.rel.ro)
> }
>
> - __got_start = .;
> . = ALIGN(4);
> - .got : { *(.got) }
>
> - __got_end = .;
> . = .;
> __u_boot_cmd_start = .;
> .u_boot_cmd : { *(.u_boot_cmd) }
> __u_boot_cmd_end = .;
>
> . = ALIGN(4);
> - __bss_start = .;
> - .bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
> - _end = .;
> +
> + .rel.dyn : {
> + __rel_dyn_start = .;
> + *(.rel*)
> + __rel_dyn_end = .;
> + }
> +
> + .dynsym : {
> + __dynsym_start = .;
> + *(.dynsym)
> + }
> +
> + .bss __rel_dyn_start (OVERLAY) : {
> + __bss_start = .;
> + *(.bss)
> + . = ALIGN(4);
> + _end = .;
> + }
> +
> + /DISCARD/ : { *(.dynstr*) }
> + /DISCARD/ : { *(.dynamic*) }
> + /DISCARD/ : { *(.plt*) }
> + /DISCARD/ : { *(.interp*) }
> + /DISCARD/ : { *(.gnu*) }
> }
> diff --git a/arch/arm/cpu/s3c44b0/start.S b/arch/arm/cpu/s3c44b0/start.S
> index 67b2c6a..8c7100c 100644
> --- a/arch/arm/cpu/s3c44b0/start.S
> +++ b/arch/arm/cpu/s3c44b0/start.S
> @@ -68,14 +68,17 @@ _TEXT_BASE:
>
> /*
> * These are defined in the board-specific linker script.
> + * Subtracting _start from them lets the linker put their
> + * relative position in the executable instead of leaving
> + * them null.
> */
> -.globl _bss_start
> -_bss_start:
> - .word __bss_start
> +.globl _bss_start_ofs
> +_bss_start_ofs:
> + .word __bss_start - _start
>
> -.globl _bss_end
> -_bss_end:
> - .word _end
> +.globl _bss_end_ofs
> +_bss_end_ofs:
> + .word _end - _start
>
> #ifdef CONFIG_USE_IRQ
> /* IRQ stack memory (calculated at run-time) */
> @@ -94,30 +97,6 @@ FIQ_STACK_START:
> IRQ_STACK_START_IN:
> .word 0x0badc0de
>
> -.globl _datarel_start
> -_datarel_start:
> - .word __datarel_start
> -
> -.globl _datarelrolocal_start
> -_datarelrolocal_start:
> - .word __datarelrolocal_start
> -
> -.globl _datarellocal_start
> -_datarellocal_start:
> - .word __datarellocal_start
> -
> -.globl _datarelro_start
> -_datarelro_start:
> - .word __datarelro_start
> -
> -.globl _got_start
> -_got_start:
> - .word __got_start
> -
> -.globl _got_end
> -_got_end:
> - .word __got_end
> -
> /*
> * the actual reset code
> */
> @@ -173,9 +152,8 @@ stack_setup:
>
> adr r0, _start
> ldr r2, _TEXT_BASE
> - ldr r3, _bss_start
> - sub r2, r3, r2 /* r2<- size of armboot */
> - add r2, r0, r2 /* r2<- source end address */
> + ldr r3, _bss_start_ofs
> + add r2, r0, r3 /* r2<- source end address */
> cmp r0, r6
> beq clear_bss
>
> @@ -186,47 +164,53 @@ copy_loop:
> blo copy_loop
>
> #ifndef CONFIG_PRELOADER
> - /* fix got entries */
> - ldr r1, _TEXT_BASE /* Text base */
> - mov r0, r7 /* reloc addr */
> - ldr r2, _got_start /* addr in Flash */
> - ldr r3, _got_end /* addr in Flash */
> - sub r3, r3, r1
> - add r3, r3, r0
> - sub r2, r2, r1
> - add r2, r2, r0
> -
> + /*
> + * fix .rel.dyn relocations
> + */
> + ldr r0, _TEXT_BASE /* r0<- Text base */
> + sub r9, r7, r0 /* r9<- relocation offset */
> + ldr r10, _dynsym_start_ofs /* r10<- sym table ofs */
> + add r10, r10, r0 /* r10<- sym table in FLASH */
> + ldr r2, _rel_dyn_start_ofs /* r2<- rel dyn start ofs */
> + add r2, r2, r0 /* r2<- rel dyn start in FLASH */
> + ldr r3, _rel_dyn_end_ofs /* r3<- rel dyn end ofs */
> + add r3, r3, r0 /* r3<- rel dyn end in FLASH */
> fixloop:
> - ldr r4, [r2]
> - sub r4, r4, r1
> - add r4, r4, r0
> - str r4, [r2]
> - add r2, r2, #4
> + ldr r0, [r2] /* r0<- location to fix up, IN FLASH! */
> + add r0, r0, r9 /* r0<- location to fix up in RAM */
> + ldr r1, [r2, #4]
> + and r8, r1, #0xff
> + cmp r8, #23 /* relative fixup? */
> + beq fixrel
> + cmp r8, #2 /* absolute fixup? */
> + beq fixabs
> + /* ignore unknown type of fixup */
> + b fixnext
> +fixabs:
> + /* absolute fix: set location to (offset) symbol value */
> + mov r1, r1, LSR #4 /* r1<- symbol index in .dynsym */
> + add r1, r10, r1 /* r1<- address of symbol in table */
> + ldr r1, [r1, #4] /* r1<- symbol value */
> + add r1, r9 /* r1<- relocated sym addr */
> + b fixnext
> +fixrel:
> + /* relative fix: increase location by offset */
> + ldr r1, [r0]
> + add r1, r1, r9
> +fixnext:
> + str r1, [r0]
> + add r2, r2, #8 /* each rel.dyn entry is 8 bytes */
> cmp r2, r3
> blo fixloop
> #endif
> -/*
> - now copy to sram the interrupt vector
> -*/
> - adr r0, real_vectors
> - add r2, r0, #1024
> - ldr r1, =0x0c000000
> - add r1, r1, #0x08
> -vector_copy_loop:
> - ldmia r0!, {r3-r10}
> - stmia r1!, {r3-r10}
> - cmp r0, r2
> - blo vector_copy_loop
>
> clear_bss:
> #ifndef CONFIG_PRELOADER
> - ldr r0, _bss_start
> - ldr r1, _bss_end
> + ldr r0, _bss_start_ofs
> + ldr r1, _bss_end_ofs
> ldr r3, _TEXT_BASE /* Text base */
> mov r4, r7 /* reloc addr */
> - sub r0, r0, r3
> add r0, r0, r4
> - sub r1, r1, r3
> add r1, r1, r4
> mov r2, #0x00000000 /* clear */
>
> @@ -243,18 +227,25 @@ clbss_l:str r2, [r0] /* clear loop... */
> * We are done. Do not return, instead branch to second part of board
> * initialization, now running from RAM.
> */
> - ldr r0, _TEXT_BASE
> - ldr r2, _board_init_r
> - sub r2, r2, r0
> - add r2, r2, r7 /* position from board_init_r in RAM */
> + ldr r0, _board_init_r_ofs
> + adr r1, _start
> + add lr, r0, r1
> + add lr, lr, r9
> /* setup parameters for board_init_r */
> mov r0, r5 /* gd_t */
> mov r1, r7 /* dest_addr */
> /* jump to it ... */
> - mov lr, r2
> mov pc, lr
>
> -_board_init_r: .word board_init_r
> +_board_init_r_ofs:
> + .word board_init_r - _start
> +
> +_rel_dyn_start_ofs:
> + .word __rel_dyn_start - _start
> +_rel_dyn_end_ofs:
> + .word __rel_dyn_end - _start
> +_dynsym_start_ofs:
> + .word __dynsym_start - _start
>
> /*
> *************************************************************************
> diff --git a/arch/arm/cpu/s3c44b0/u-boot.lds b/arch/arm/cpu/s3c44b0/u-boot.lds
> index bbc8c3a..ac29440 100644
> --- a/arch/arm/cpu/s3c44b0/u-boot.lds
> +++ b/arch/arm/cpu/s3c44b0/u-boot.lds
> @@ -41,28 +41,38 @@ SECTIONS
> . = ALIGN(4);
> .data : {
> *(.data)
> - __datarel_start = .;
> - *(.data.rel)
> - __datarelrolocal_start = .;
> - *(.data.rel.ro.local)
> - __datarellocal_start = .;
> - *(.data.rel.local)
> - __datarelro_start = .;
> - *(.data.rel.ro)
> }
>
> - __got_start = .;
> . = ALIGN(4);
> - .got : { *(.got) }
>
> - __got_end = .;
> . = .;
> __u_boot_cmd_start = .;
> .u_boot_cmd : { *(.u_boot_cmd) }
> __u_boot_cmd_end = .;
>
> . = ALIGN(4);
> - __bss_start = .;
> - .bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
> - _end = .;
> +
> + .rel.dyn : {
> + __rel_dyn_start = .;
> + *(.rel*)
> + __rel_dyn_end = .;
> + }
> +
> + .dynsym : {
> + __dynsym_start = .;
> + *(.dynsym)
> + }
> +
> + .bss __rel_dyn_start (OVERLAY) : {
> + __bss_start = .;
> + *(.bss)
> + . = ALIGN(4);
> + _end = .;
> + }
> +
> + /DISCARD/ : { *(.dynstr*) }
> + /DISCARD/ : { *(.dynamic*) }
> + /DISCARD/ : { *(.plt*) }
> + /DISCARD/ : { *(.interp*) }
> + /DISCARD/ : { *(.gnu*) }
> }
> diff --git a/arch/arm/cpu/sa1100/start.S b/arch/arm/cpu/sa1100/start.S
> index ace0c07..36d44da 100644
> --- a/arch/arm/cpu/sa1100/start.S
> +++ b/arch/arm/cpu/sa1100/start.S
> @@ -78,14 +78,17 @@ _TEXT_BASE:
>
> /*
> * These are defined in the board-specific linker script.
> + * Subtracting _start from them lets the linker put their
> + * relative position in the executable instead of leaving
> + * them null.
> */
> -.globl _bss_start
> -_bss_start:
> - .word __bss_start
> +.globl _bss_start_ofs
> +_bss_start_ofs:
> + .word __bss_start - _start
>
> -.globl _bss_end
> -_bss_end:
> - .word _end
> +.globl _bss_end_ofs
> +_bss_end_ofs:
> + .word _end - _start
>
> #ifdef CONFIG_USE_IRQ
> /* IRQ stack memory (calculated at run-time) */
> @@ -104,30 +107,6 @@ FIQ_STACK_START:
> IRQ_STACK_START_IN:
> .word 0x0badc0de
>
> -.globl _datarel_start
> -_datarel_start:
> - .word __datarel_start
> -
> -.globl _datarelrolocal_start
> -_datarelrolocal_start:
> - .word __datarelrolocal_start
> -
> -.globl _datarellocal_start
> -_datarellocal_start:
> - .word __datarellocal_start
> -
> -.globl _datarelro_start
> -_datarelro_start:
> - .word __datarelro_start
> -
> -.globl _got_start
> -_got_start:
> - .word __got_start
> -
> -.globl _got_end
> -_got_end:
> - .word __got_end
> -
> /*
> * the actual reset code
> */
> @@ -177,9 +156,8 @@ stack_setup:
>
> adr r0, _start
> ldr r2, _TEXT_BASE
> - ldr r3, _bss_start
> - sub r2, r3, r2 /* r2<- size of armboot */
> - add r2, r0, r2 /* r2<- source end address */
> + ldr r3, _bss_start_ofs
> + add r2, r0, r3 /* r2<- source end address */
> cmp r0, r6
> beq clear_bss
>
> @@ -190,35 +168,53 @@ copy_loop:
> blo copy_loop
>
> #ifndef CONFIG_PRELOADER
> - /* fix got entries */
> - ldr r1, _TEXT_BASE /* Text base */
> - mov r0, r7 /* reloc addr */
> - ldr r2, _got_start /* addr in Flash */
> - ldr r3, _got_end /* addr in Flash */
> - sub r3, r3, r1
> - add r3, r3, r0
> - sub r2, r2, r1
> - add r2, r2, r0
> -
> + /*
> + * fix .rel.dyn relocations
> + */
> + ldr r0, _TEXT_BASE /* r0<- Text base */
> + sub r9, r7, r0 /* r9<- relocation offset */
> + ldr r10, _dynsym_start_ofs /* r10<- sym table ofs */
> + add r10, r10, r0 /* r10<- sym table in FLASH */
> + ldr r2, _rel_dyn_start_ofs /* r2<- rel dyn start ofs */
> + add r2, r2, r0 /* r2<- rel dyn start in FLASH */
> + ldr r3, _rel_dyn_end_ofs /* r3<- rel dyn end ofs */
> + add r3, r3, r0 /* r3<- rel dyn end in FLASH */
> fixloop:
> - ldr r4, [r2]
> - sub r4, r4, r1
> - add r4, r4, r0
> - str r4, [r2]
> - add r2, r2, #4
> + ldr r0, [r2] /* r0<- location to fix up, IN FLASH! */
> + add r0, r0, r9 /* r0<- location to fix up in RAM */
> + ldr r1, [r2, #4]
> + and r8, r1, #0xff
> + cmp r8, #23 /* relative fixup? */
> + beq fixrel
> + cmp r8, #2 /* absolute fixup? */
> + beq fixabs
> + /* ignore unknown type of fixup */
> + b fixnext
> +fixabs:
> + /* absolute fix: set location to (offset) symbol value */
> + mov r1, r1, LSR #4 /* r1<- symbol index in .dynsym */
> + add r1, r10, r1 /* r1<- address of symbol in table */
> + ldr r1, [r1, #4] /* r1<- symbol value */
> + add r1, r9 /* r1<- relocated sym addr */
> + b fixnext
> +fixrel:
> + /* relative fix: increase location by offset */
> + ldr r1, [r0]
> + add r1, r1, r9
> +fixnext:
> + str r1, [r0]
> + add r2, r2, #8 /* each rel.dyn entry is 8 bytes */
> cmp r2, r3
> blo fixloop
> #endif
>
> clear_bss:
> #ifndef CONFIG_PRELOADER
> - ldr r0, _bss_start
> - ldr r1, _bss_end
> + ldr r0, _bss_start_ofs
> + ldr r1, _bss_end_ofs
> ldr r3, _TEXT_BASE /* Text base */
> mov r4, r7 /* reloc addr */
> - sub r0, r0, r3
> add r0, r0, r4
> - sub r1, r1, r3
> add r1, r1, r4
> mov r2, #0x00000000 /* clear */
>
> @@ -232,18 +228,25 @@ clbss_l:str r2, [r0] /* clear loop... */
> * We are done. Do not return, instead branch to second part of board
> * initialization, now running from RAM.
> */
> - ldr r0, _TEXT_BASE
> - ldr r2, _board_init_r
> - sub r2, r2, r0
> - add r2, r2, r7 /* position from board_init_r in RAM */
> + ldr r0, _board_init_r_ofs
> + adr r1, _start
> + add lr, r0, r1
> + add lr, lr, r9
> /* setup parameters for board_init_r */
> mov r0, r5 /* gd_t */
> mov r1, r7 /* dest_addr */
> /* jump to it ... */
> - mov lr, r2
> mov pc, lr
>
> -_board_init_r: .word board_init_r
> +_board_init_r_ofs:
> + .word board_init_r - _start
> +
> +_rel_dyn_start_ofs:
> + .word __rel_dyn_start - _start
> +_rel_dyn_end_ofs:
> + .word __rel_dyn_end - _start
> +_dynsym_start_ofs:
> + .word __dynsym_start - _start
>
> /*
> *************************************************************************
> diff --git a/arch/arm/cpu/sa1100/u-boot.lds b/arch/arm/cpu/sa1100/u-boot.lds
> index 2e29291..fa6d05c 100644
> --- a/arch/arm/cpu/sa1100/u-boot.lds
> +++ b/arch/arm/cpu/sa1100/u-boot.lds
> @@ -44,28 +44,38 @@ SECTIONS
> . = ALIGN(4);
> .data : {
> *(.data)
> - __datarel_start = .;
> - *(.data.rel)
> - __datarelrolocal_start = .;
> - *(.data.rel.ro.local)
> - __datarellocal_start = .;
> - *(.data.rel.local)
> - __datarelro_start = .;
> - *(.data.rel.ro)
> }
>
> - __got_start = .;
> . = ALIGN(4);
> - .got : { *(.got) }
>
> - __got_end = .;
> . = .;
> __u_boot_cmd_start = .;
> .u_boot_cmd : { *(.u_boot_cmd) }
> __u_boot_cmd_end = .;
>
> . = ALIGN(4);
> - __bss_start = .;
> - .bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
> - _end = .;
> +
> + .rel.dyn : {
> + __rel_dyn_start = .;
> + *(.rel*)
> + __rel_dyn_end = .;
> + }
> +
> + .dynsym : {
> + __dynsym_start = .;
> + *(.dynsym)
> + }
> +
> + .bss __rel_dyn_start (OVERLAY) : {
> + __bss_start = .;
> + *(.bss)
> + . = ALIGN(4);
> + _end = .;
> + }
> +
> + /DISCARD/ : { *(.dynstr*) }
> + /DISCARD/ : { *(.dynamic*) }
> + /DISCARD/ : { *(.plt*) }
> + /DISCARD/ : { *(.interp*) }
> + /DISCARD/ : { *(.gnu*) }
> }
next prev parent reply other threads:[~2010-11-26 18:04 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-25 21:45 [U-Boot] [PATCH] arm: add ELF relocation support to rest of cpus Albert Aribaud
2010-11-26 18:04 ` Darius Augulis [this message]
2010-11-26 18:12 ` Albert ARIBAUD
2010-11-26 18:18 ` Darius Augulis
2010-11-26 18:34 ` Albert ARIBAUD
2010-11-26 18:41 ` Darius Augulis
2010-11-26 20:22 ` Wolfgang Denk
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