linux/arch/powerpc/kernel/vmlinux.lds.S
Michael Ellerman e19e4ab415 powerpc: Set entry point and text address in linker script
Currently we set the kernel entry point and the address of the text
section in the Makefile, using CONFIG_KERNEL_START.

But we've already got <asm/page.h> in the linker script, so we can just
use KERNELBASE directly. That means if we ever change KERNELBASE there's
one less place to change it.

And we can set the entry point with ENTRY().

There are zero differences from "readelf -a vmlinux" with or without this
patch.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
2005-11-03 16:03:06 +11:00

279 lines
4.9 KiB
ArmAsm

#include <linux/config.h>
#include <asm/page.h>
#include <asm-generic/vmlinux.lds.h>
ENTRY(_stext)
#ifdef CONFIG_PPC64
OUTPUT_ARCH(powerpc:common64)
jiffies = jiffies_64;
#else
OUTPUT_ARCH(powerpc:common)
jiffies = jiffies_64 + 4;
#endif
SECTIONS
{
/* Sections to be discarded. */
/DISCARD/ : {
*(.exitcall.exit)
*(.exit.data)
}
. = KERNELBASE;
/* Read-only sections, merged into text segment: */
#ifdef CONFIG_PPC32
. = + SIZEOF_HEADERS;
.interp : { *(.interp) }
.hash : { *(.hash) }
.dynsym : { *(.dynsym) }
.dynstr : { *(.dynstr) }
.rel.text : { *(.rel.text) }
.rela.text : { *(.rela.text) }
.rel.data : { *(.rel.data) }
.rela.data : { *(.rela.data) }
.rel.rodata : { *(.rel.rodata) }
.rela.rodata : { *(.rela.rodata) }
.rel.got : { *(.rel.got) }
.rela.got : { *(.rela.got) }
.rel.ctors : { *(.rel.ctors) }
.rela.ctors : { *(.rela.ctors) }
.rel.dtors : { *(.rel.dtors) }
.rela.dtors : { *(.rela.dtors) }
.rel.bss : { *(.rel.bss) }
.rela.bss : { *(.rela.bss) }
.rel.plt : { *(.rel.plt) }
.rela.plt : { *(.rela.plt) }
/* .init : { *(.init) } =0*/
.plt : { *(.plt) }
#endif
.text : {
*(.text .text.*)
SCHED_TEXT
LOCK_TEXT
KPROBES_TEXT
*(.fixup)
#ifdef CONFIG_PPC32
*(.got1)
__got2_start = .;
*(.got2)
__got2_end = .;
#else
. = ALIGN(PAGE_SIZE);
_etext = .;
#endif
}
#ifdef CONFIG_PPC32
_etext = .;
PROVIDE (etext = .);
RODATA
.fini : { *(.fini) } =0
.ctors : { *(.ctors) }
.dtors : { *(.dtors) }
.fixup : { *(.fixup) }
#endif
__ex_table : {
__start___ex_table = .;
*(__ex_table)
__stop___ex_table = .;
}
__bug_table : {
__start___bug_table = .;
*(__bug_table)
__stop___bug_table = .;
}
#ifdef CONFIG_PPC64
__ftr_fixup : {
__start___ftr_fixup = .;
*(__ftr_fixup)
__stop___ftr_fixup = .;
}
RODATA
#endif
#ifdef CONFIG_PPC32
/* Read-write section, merged into data segment: */
. = ALIGN(PAGE_SIZE);
_sdata = .;
.data :
{
*(.data)
*(.data1)
*(.sdata)
*(.sdata2)
*(.got.plt) *(.got)
*(.dynamic)
CONSTRUCTORS
}
. = ALIGN(PAGE_SIZE);
__nosave_begin = .;
.data_nosave : { *(.data.nosave) }
. = ALIGN(PAGE_SIZE);
__nosave_end = .;
. = ALIGN(32);
.data.cacheline_aligned : { *(.data.cacheline_aligned) }
_edata = .;
PROVIDE (edata = .);
. = ALIGN(8192);
.data.init_task : { *(.data.init_task) }
#endif
/* will be freed after init */
. = ALIGN(PAGE_SIZE);
__init_begin = .;
.init.text : {
_sinittext = .;
*(.init.text)
_einittext = .;
}
#ifdef CONFIG_PPC32
/* .exit.text is discarded at runtime, not link time,
to deal with references from __bug_table */
.exit.text : { *(.exit.text) }
#endif
.init.data : {
*(.init.data);
__vtop_table_begin = .;
*(.vtop_fixup);
__vtop_table_end = .;
__ptov_table_begin = .;
*(.ptov_fixup);
__ptov_table_end = .;
}
. = ALIGN(16);
.init.setup : {
__setup_start = .;
*(.init.setup)
__setup_end = .;
}
.initcall.init : {
__initcall_start = .;
*(.initcall1.init)
*(.initcall2.init)
*(.initcall3.init)
*(.initcall4.init)
*(.initcall5.init)
*(.initcall6.init)
*(.initcall7.init)
__initcall_end = .;
}
.con_initcall.init : {
__con_initcall_start = .;
*(.con_initcall.init)
__con_initcall_end = .;
}
SECURITY_INIT
#ifdef CONFIG_PPC32
__start___ftr_fixup = .;
__ftr_fixup : { *(__ftr_fixup) }
__stop___ftr_fixup = .;
#else
. = ALIGN(PAGE_SIZE);
.init.ramfs : {
__initramfs_start = .;
*(.init.ramfs)
__initramfs_end = .;
}
#endif
#ifdef CONFIG_PPC32
. = ALIGN(32);
#endif
.data.percpu : {
__per_cpu_start = .;
*(.data.percpu)
__per_cpu_end = .;
}
. = ALIGN(PAGE_SIZE);
#ifdef CONFIG_PPC64
. = ALIGN(16384);
__init_end = .;
/* freed after init ends here */
/* Read/write sections */
. = ALIGN(PAGE_SIZE);
. = ALIGN(16384);
_sdata = .;
/* The initial task and kernel stack */
.data.init_task : {
*(.data.init_task)
}
. = ALIGN(PAGE_SIZE);
.data.page_aligned : {
*(.data.page_aligned)
}
.data.cacheline_aligned : {
*(.data.cacheline_aligned)
}
.data : {
*(.data .data.rel* .toc1)
*(.branch_lt)
}
.opd : {
*(.opd)
}
.got : {
__toc_start = .;
*(.got)
*(.toc)
. = ALIGN(PAGE_SIZE);
_edata = .;
}
. = ALIGN(PAGE_SIZE);
#else
__initramfs_start = .;
.init.ramfs : {
*(.init.ramfs)
}
__initramfs_end = .;
. = ALIGN(4096);
__init_end = .;
. = ALIGN(4096);
_sextratext = .;
_eextratext = .;
__bss_start = .;
#endif
.bss : {
__bss_start = .;
*(.sbss) *(.scommon)
*(.dynbss)
*(.bss)
*(COMMON)
__bss_stop = .;
}
#ifdef CONFIG_PPC64
. = ALIGN(PAGE_SIZE);
#endif
_end = . ;
#ifdef CONFIG_PPC32
PROVIDE (end = .);
#endif
}