kernel_optimize_test/arch/frv/kernel/vmlinux.lds.S
Nelson Elhage 9c88b25bcf frv: clean up linker script using new linker script macros.
This is largely a straightforward conversion. The patch results in
fewer output sections, and some data being reordered, but should have
no functional impact.

Also, note that this patch moves some data (namely, init_task and
cacheline-aligned) inside [_sdata,_edata].

Because frv already builds using -ffunction-sections -fdata-sections,
we can't use BSS_SECTION or RW_DATA_SECTION yet, since they do not
currently include the required .bss.* and .data.* sections.

Signed-off-by: Nelson Elhage <nelhage@ksplice.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-18 13:57:18 -07:00

133 lines
2.3 KiB
ArmAsm

/* ld script to make FRV Linux kernel
* Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>;
*/
OUTPUT_FORMAT("elf32-frv", "elf32-frv", "elf32-frv")
OUTPUT_ARCH(frv)
ENTRY(_start)
#include <asm-generic/vmlinux.lds.h>
#include <asm/processor.h>
#include <asm/page.h>
#include <asm/cache.h>
#include <asm/thread_info.h>
jiffies = jiffies_64 + 4;
__page_offset = CONFIG_PAGE_OFFSET; /* start of area covered by struct pages */
__kernel_image_start = __page_offset; /* address at which kernel image resides */
SECTIONS
{
. = __kernel_image_start;
/* discardable initialisation code and data */
. = ALIGN(PAGE_SIZE); /* Init code and data */
__init_begin = .;
_sinittext = .;
.init.text : {
HEAD_TEXT
#ifndef CONFIG_DEBUG_INFO
INIT_TEXT
EXIT_TEXT
EXIT_DATA
*(.exitcall.exit)
#endif
}
_einittext = .;
INIT_DATA_SECTION(8)
PERCPU(4096)
. = ALIGN(PAGE_SIZE);
__init_end = .;
.trap : {
/* trap table management - read entry-table.S before modifying */
. = ALIGN(8192);
__trap_tables = .;
*(.trap.user)
*(.trap.kernel)
. = ALIGN(4096);
*(.trap.break)
}
/* Text and read-only data */
. = ALIGN(4);
_text = .;
_stext = .;
.text : {
*(.text.start)
*(.text.entry)
*(.text.break)
*(.text.tlbmiss)
TEXT_TEXT
SCHED_TEXT
LOCK_TEXT
#ifdef CONFIG_DEBUG_INFO
INIT_TEXT
EXIT_TEXT
*(.exitcall.exit)
#endif
*(.fixup)
*(.gnu.warning)
*(.exitcall.exit)
} = 0x9090
_etext = .; /* End of text section */
RODATA
.rodata : {
*(.trap.vector)
/* this clause must not be modified - the ordering and adjacency are imperative */
__trap_fixup_tables = .;
*(.trap.fixup.user .trap.fixup.kernel)
}
EXCEPTION_TABLE(8)
_sdata = .;
.data : { /* Data */
INIT_TASK_DATA(THREAD_SIZE)
CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
DATA_DATA
*(.data.*)
EXIT_DATA
CONSTRUCTORS
}
_edata = .; /* End of data section */
/* GP section */
. = ALIGN(L1_CACHE_BYTES);
_gp = . + 2048;
PROVIDE (gp = _gp);
.sdata : { *(.sdata .sdata.*) }
/* BSS */
. = ALIGN(L1_CACHE_BYTES);
__bss_start = .;
.sbss : { *(.sbss .sbss.*) }
.bss : { *(.bss .bss.*) }
.bss.stack : { *(.bss) }
__bss_stop = .;
_end = . ;
. = ALIGN(PAGE_SIZE);
__kernel_image_end = .;
STABS_DEBUG
DWARF_DEBUG
.comment 0 : { *(.comment) }
DISCARDS
}
__kernel_image_size_no_bss = __bss_start - __kernel_image_start;