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| author | Sam Ravnborg <sam@ravnborg.org> | 2007-05-29 21:29:00 +0200 |
|---|---|---|
| committer | Sam Ravnborg <sam@ravnborg.org> | 2007-05-29 21:29:00 +0200 |
| commit | 4096b46f01a362fe2cc83f6be25cc7be6bce2ab7 (patch) | |
| tree | 7738ca7a7962dc88cc5b9e6dc3b789e73504a7c8 | |
| parent | c420bc9f09a0926b708c3edb27eacba434a4f4ba (diff) | |
| download | linux-4096b46f01a362fe2cc83f6be25cc7be6bce2ab7.tar.bz2 | |
sparc64: fix alignment bug in linker definition script
The RO_DATA section were hardcoded to a specific
alignment in include/asm-generic/vmlinux.h.
But for sparc64 this did not match the PAGE_SIZE.
Introduce a new section definition named:
RO_DATA that takes actual alignment as parameter.
RODATA are provided for backward compatibility.
On top of this avoid hardcoding alignment for
sparc64 in reset of the script
Fix is build-tested on sparc64 + x86_64.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| -rw-r--r-- | arch/sparc64/kernel/vmlinux.lds.S | 11 | ||||
| -rw-r--r-- | include/asm-generic/vmlinux.lds.h | 10 |
2 files changed, 13 insertions, 8 deletions
diff --git a/arch/sparc64/kernel/vmlinux.lds.S b/arch/sparc64/kernel/vmlinux.lds.S index fb648de18a8d..3ad10f3027e4 100644 --- a/arch/sparc64/kernel/vmlinux.lds.S +++ b/arch/sparc64/kernel/vmlinux.lds.S @@ -1,5 +1,6 @@ /* ld script to make UltraLinux kernel */ +#include <asm/page.h> #include <asm-generic/vmlinux.lds.h> OUTPUT_FORMAT("elf64-sparc", "elf64-sparc", "elf64-sparc") @@ -23,7 +24,7 @@ SECTIONS _etext = .; PROVIDE (etext = .); - RODATA + RO_DATA(PAGE_SIZE) .data : { @@ -44,7 +45,7 @@ SECTIONS __ex_table : { *(__ex_table) } __stop___ex_table = .; - . = ALIGN(8192); + . = ALIGN(PAGE_SIZE); __init_begin = .; .init.text : { _sinittext = .; @@ -83,17 +84,17 @@ SECTIONS __sun4v_2insn_patch_end = .; #ifdef CONFIG_BLK_DEV_INITRD - . = ALIGN(8192); + . = ALIGN(PAGE_SIZE); __initramfs_start = .; .init.ramfs : { *(.init.ramfs) } __initramfs_end = .; #endif - . = ALIGN(8192); + . = ALIGN(PAGE_SIZE); __per_cpu_start = .; .data.percpu : { *(.data.percpu) } __per_cpu_end = .; - . = ALIGN(8192); + . = ALIGN(PAGE_SIZE); __init_end = .; __bss_start = .; .sbss : { *(.sbss) *(.scommon) } diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 8307b1bb337a..84155eb67f1d 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -14,8 +14,8 @@ *(.data) \ *(.data.init.refok) -#define RODATA \ - . = ALIGN(4096); \ +#define RO_DATA(align) \ + . = ALIGN((align)); \ .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start_rodata) = .; \ *(.rodata) *(.rodata.*) \ @@ -135,7 +135,11 @@ VMLINUX_SYMBOL(__end_rodata) = .; \ } \ \ - . = ALIGN(4096); + . = ALIGN((align)); + +/* RODATA provided for backward compatibility. + * All archs are supposed to use RO_DATA() */ +#define RODATA RO_DATA(4096) #define SECURITY_INIT \ .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \ |