kernel_optimize_test/arch/mips/kernel/vmlinux.lds.S
Jeremy Fitzhardinge b6e3590f81 [PATCH] x86: Allow percpu variables to be page-aligned
Let's allow page-alignment in general for per-cpu data (wanted by Xen, and
Ingo suggested KVM as well).

Because larger alignments can use more room, we increase the max per-cpu
memory to 64k rather than 32k: it's getting a little tight.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2007-05-02 19:27:12 +02:00

169 lines
3.8 KiB
ArmAsm
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

#include <asm/asm-offsets.h>
#include <asm-generic/vmlinux.lds.h>
#undef mips
#define mips mips
OUTPUT_ARCH(mips)
ENTRY(kernel_entry)
jiffies = JIFFIES;
SECTIONS
{
#ifdef CONFIG_BOOT_ELF64
/* Read-only sections, merged into text segment: */
/* . = 0xc000000000000000; */
/* This is the value for an Origin kernel, taken from an IRIX kernel. */
/* . = 0xc00000000001c000; */
/* Set the vaddr for the text segment to a value
>= 0xa800 0000 0001 9000 if no symmon is going to configured
>= 0xa800 0000 0030 0000 otherwise */
/* . = 0xa800000000300000; */
/* . = 0xa800000000300000; */
. = 0xffffffff80300000;
#endif
. = LOADADDR;
/* read-only */
_text = .; /* Text and read-only data */
.text : {
*(.text)
SCHED_TEXT
LOCK_TEXT
*(.fixup)
*(.gnu.warning)
} =0
_etext = .; /* End of text section */
. = ALIGN(16); /* Exception table */
__start___ex_table = .;
__ex_table : { *(__ex_table) }
__stop___ex_table = .;
__start___dbe_table = .; /* Exception table for data bus errors */
__dbe_table : { *(__dbe_table) }
__stop___dbe_table = .;
RODATA
/* writeable */
.data : { /* Data */
. = . + DATAOFFSET; /* for CONFIG_MAPPED_KERNEL */
/*
* This ALIGN is needed as a workaround for a bug a gcc bug upto 4.1 which
* limits the maximum alignment to at most 32kB and results in the following
* warning:
*
* CC arch/mips/kernel/init_task.o
* arch/mips/kernel/init_task.c:30: warning: alignment of init_thread_union
* is greater than maximum object file alignment. Using 32768
*/
. = ALIGN(_PAGE_SIZE);
*(.data.init_task)
*(.data)
CONSTRUCTORS
}
_gp = . + 0x8000;
.lit8 : { *(.lit8) }
.lit4 : { *(.lit4) }
/* We want the small data sections together, so single-instruction offsets
can access them all, and initialized data all before uninitialized, so
we can shorten the on-disk segment size. */
.sdata : { *(.sdata) }
. = ALIGN(_PAGE_SIZE);
__nosave_begin = .;
.data_nosave : { *(.data.nosave) }
. = ALIGN(_PAGE_SIZE);
__nosave_end = .;
. = ALIGN(32);
.data.cacheline_aligned : { *(.data.cacheline_aligned) }
_edata = .; /* End of data section */
/* will be freed after init */
. = ALIGN(_PAGE_SIZE); /* Init code and data */
__init_begin = .;
.init.text : {
_sinittext = .;
*(.init.text)
_einittext = .;
}
.init.data : { *(.init.data) }
. = ALIGN(16);
__setup_start = .;
.init.setup : { *(.init.setup) }
__setup_end = .;
__initcall_start = .;
.initcall.init : {
INITCALLS
}
__initcall_end = .;
__con_initcall_start = .;
.con_initcall.init : { *(.con_initcall.init) }
__con_initcall_end = .;
SECURITY_INIT
/* .exit.text is discarded at runtime, not link time, to deal with
references from .rodata */
.exit.text : { *(.exit.text) }
.exit.data : { *(.exit.data) }
#if defined(CONFIG_BLK_DEV_INITRD)
. = ALIGN(_PAGE_SIZE);
__initramfs_start = .;
.init.ramfs : { *(.init.ramfs) }
__initramfs_end = .;
#endif
. = ALIGN(_PAGE_SIZE);
__per_cpu_start = .;
.data.percpu : { *(.data.percpu) }
__per_cpu_end = .;
. = ALIGN(_PAGE_SIZE);
__init_end = .;
/* freed after init ends here */
__bss_start = .; /* BSS */
.sbss : {
*(.sbss)
*(.scommon)
}
.bss : {
*(.bss)
*(COMMON)
}
__bss_stop = .;
_end = . ;
/* Sections to be discarded */
/DISCARD/ : {
*(.exitcall.exit)
/* ABI crap starts here */
*(.comment)
*(.MIPS.options)
*(.note)
*(.options)
*(.pdr)
*(.reginfo)
*(.mdebug*)
}
/* This is the MIPS specific mdebug section. */
.mdebug : { *(.mdebug) }
STABS_DEBUG
DWARF_DEBUG
/* These must appear regardless of . */
.gptab.sdata : { *(.gptab.data) *(.gptab.sdata) }
.gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) }
.note : { *(.note) }
}