android_kernel_xiaomi_sm8350/arch/powerpc/kernel/vmlinux.lds.S
Benjamin Herrenschmidt e8222502ee [PATCH] powerpc: Kill _machine and hard-coded platform numbers
This removes statically assigned platform numbers and reworks the
powerpc platform probe code to use a better mechanism.  With this,
board support files can simply declare a new machine type with a
macro, and implement a probe() function that uses the flattened
device-tree to detect if they apply for a given machine.

We now have a machine_is() macro that replaces the comparisons of
_machine with the various PLATFORM_* constants.  This commit also
changes various drivers to use the new macro instead of looking at
_machine.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-03-28 23:15:54 +11:00

240 lines
3.5 KiB
ArmAsm

#include <linux/config.h>
#ifdef CONFIG_PPC64
#include <asm/page.h>
#define PROVIDE32(x) PROVIDE(__unused__##x)
#else
#define PAGE_SIZE 4096
#define KERNELBASE CONFIG_KERNEL_START
#define PROVIDE32(x) PROVIDE(x)
#endif
#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;
/*
* Text, read only data and other permanent read-only sections
*/
/* Text and gots */
.text : {
*(.text .text.*)
SCHED_TEXT
LOCK_TEXT
KPROBES_TEXT
*(.fixup)
#ifdef CONFIG_PPC32
*(.got1)
__got2_start = .;
*(.got2)
__got2_end = .;
#endif /* CONFIG_PPC32 */
. = ALIGN(PAGE_SIZE);
_etext = .;
PROVIDE32 (etext = .);
}
/* Read-only data */
RODATA
/* Exception & bug tables */
__ex_table : {
__start___ex_table = .;
*(__ex_table)
__stop___ex_table = .;
}
__bug_table : {
__start___bug_table = .;
*(__bug_table)
__stop___bug_table = .;
}
/*
* Init sections discarded at runtime
*/
. = ALIGN(PAGE_SIZE);
__init_begin = .;
.init.text : {
_sinittext = .;
*(.init.text)
_einittext = .;
}
/* .exit.text is discarded at runtime, not link time,
* to deal with references from __bug_table
*/
.exit.text : { *(.exit.text) }
.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
. = ALIGN(8);
__ftr_fixup : {
__start___ftr_fixup = .;
*(__ftr_fixup)
__stop___ftr_fixup = .;
}
. = ALIGN(PAGE_SIZE);
.init.ramfs : {
__initramfs_start = .;
*(.init.ramfs)
__initramfs_end = .;
}
#ifdef CONFIG_PPC32
. = ALIGN(32);
#else
. = ALIGN(128);
#endif
.data.percpu : {
__per_cpu_start = .;
*(.data.percpu)
__per_cpu_end = .;
}
. = ALIGN(8);
.machine.desc : {
__machine_desc_start = . ;
*(.machine.desc)
__machine_desc_end = . ;
}
/* freed after init ends here */
. = ALIGN(PAGE_SIZE);
__init_end = .;
/*
* And now the various read/write data
*/
. = ALIGN(PAGE_SIZE);
_sdata = .;
#ifdef CONFIG_PPC32
.data :
{
*(.data)
*(.sdata)
*(.got.plt) *(.got)
}
#else
.data : {
*(.data .data.rel* .toc1)
*(.branch_lt)
}
.opd : {
*(.opd)
}
.got : {
__toc_start = .;
*(.got)
*(.toc)
}
#endif
. = ALIGN(PAGE_SIZE);
_edata = .;
PROVIDE32 (edata = .);
/* The initial task and kernel stack */
#ifdef CONFIG_PPC32
. = ALIGN(8192);
#else
. = ALIGN(16384);
#endif
.data.init_task : {
*(.data.init_task)
}
. = ALIGN(PAGE_SIZE);
.data.page_aligned : {
*(.data.page_aligned)
}
.data.cacheline_aligned : {
*(.data.cacheline_aligned)
}
. = ALIGN(PAGE_SIZE);
__data_nosave : {
__nosave_begin = .;
*(.data.nosave)
. = ALIGN(PAGE_SIZE);
__nosave_end = .;
}
/*
* And finally the bss
*/
.bss : {
__bss_start = .;
*(.sbss) *(.scommon)
*(.dynbss)
*(.bss)
*(COMMON)
__bss_stop = .;
}
. = ALIGN(PAGE_SIZE);
_end = . ;
PROVIDE32 (end = .);
}