From: Roland McGrath Date: Wed, 17 Oct 2007 16:04:41 +0000 (+0200) Subject: x86: vdso linker script cleanup X-Git-Tag: v2.6.24-rc1~476^2~27 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c65916fe3586521932fbd1b734f39744657f2f0d;p=linux-2.6 x86: vdso linker script cleanup I can't see the reason ". = VDSO_PRELINK + 0x900;" was ever there in the linker script for the x86_64 vDSO. I can't find anything that depends on this magic offset, or that should care at all about the particular location of of the .data section (all from vvar.c) in the vDSO image. If it is really desireable to place .data at 0x900, then it should be after all the other sections so they fill in the space up to 0x900. This removes the 0x900 magic and cleans up the output sections generally in the vDSO linker script. This saves a few hundred bytes in the size of the vDSO file, bringing it back well under 4kb total so that its vma only needs one page. Signed-off-by: Roland McGrath Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- diff --git a/arch/x86/vdso/vdso.lds.S b/arch/x86/vdso/vdso.lds.S index b9a60e665d..667d3245d9 100644 --- a/arch/x86/vdso/vdso.lds.S +++ b/arch/x86/vdso/vdso.lds.S @@ -26,13 +26,16 @@ SECTIONS is insufficient, ld -shared will barf. Just increase it here. */ . = VDSO_PRELINK + VDSO_TEXT_OFFSET; - .text : { *(.text) } :text - .text.ptr : { *(.text.ptr) } :text - . = VDSO_PRELINK + 0x900; - .data : { *(.data) } :text - .bss : { *(.bss) } :text + .text : { *(.text*) } :text + .rodata : { *(.rodata*) } :text + .data : { + *(.data*) + *(.sdata*) + *(.bss*) + *(.dynbss*) + } :text - .altinstructions : { *(.altinstructions) } :text + .altinstructions : { *(.altinstructions) } :text .altinstr_replacement : { *(.altinstr_replacement) } :text .note : { *(.note.*) } :text :note @@ -42,7 +45,6 @@ SECTIONS .useless : { *(.got.plt) *(.got) *(.gnu.linkonce.d.*) - *(.dynbss) *(.gnu.linkonce.b.*) } :text }