2fd8303816
More work towards supporing multiple page sizes on 64-bit. Convert some assumptions that 64bit uses 3 level page tables into testing PT_NLEVELS. Also some BUG() to BUG_ON() conversions and some cleanups to assembler. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
215 lines
5.6 KiB
ArmAsm
215 lines
5.6 KiB
ArmAsm
/* Kernel link layout for various "sections"
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*
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* Copyright (C) 1999-2003 Matthew Wilcox <willy at parisc-linux.org>
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* Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org>
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* Copyright (C) 2000 John Marvin <jsm at parisc-linux.org>
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* Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
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* Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
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* Copyright (C) 2003 James Bottomley <jejb with parisc-linux.org>
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* Copyright (C) 2006 Helge Deller <deller@gmx.de>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/config.h>
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#include <asm-generic/vmlinux.lds.h>
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/* needed for the processor specific cache alignment size */
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#include <asm/cache.h>
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#include <asm/page.h>
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#include <asm/asm-offsets.h>
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/* ld script to make hppa Linux kernel */
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#ifndef CONFIG_64BIT
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OUTPUT_FORMAT("elf32-hppa-linux")
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OUTPUT_ARCH(hppa)
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#else
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OUTPUT_FORMAT("elf64-hppa-linux")
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OUTPUT_ARCH(hppa:hppa2.0w)
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#endif
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ENTRY(_stext)
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#ifndef CONFIG_64BIT
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jiffies = jiffies_64 + 4;
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#else
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jiffies = jiffies_64;
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#endif
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SECTIONS
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{
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. = KERNEL_BINARY_TEXT_START;
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_text = .; /* Text and read-only data */
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.text ALIGN(16) : {
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*(.text)
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SCHED_TEXT
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LOCK_TEXT
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*(.text.do_softirq)
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*(.text.sys_exit)
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*(.text.do_sigaltstack)
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*(.text.do_fork)
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*(.text.*)
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*(.fixup)
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*(.lock.text) /* out-of-line lock text */
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*(.gnu.warning)
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} = 0
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_etext = .; /* End of text section */
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RODATA
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/* writeable */
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. = ALIGN(ASM_PAGE_SIZE); /* Make sure this is page aligned so
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that we can properly leave these
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as writable */
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data_start = .;
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. = ALIGN(16); /* Exception table */
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__start___ex_table = .;
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__ex_table : { *(__ex_table) }
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__stop___ex_table = .;
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__start___unwind = .; /* unwind info */
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.PARISC.unwind : { *(.PARISC.unwind) }
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__stop___unwind = .;
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/* rarely changed data like cpu maps */
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. = ALIGN(16);
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.data.read_mostly : { *(.data.read_mostly) }
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. = ALIGN(L1_CACHE_BYTES);
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.data : { /* Data */
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*(.data)
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CONSTRUCTORS
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}
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. = ALIGN(L1_CACHE_BYTES);
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.data.cacheline_aligned : { *(.data.cacheline_aligned) }
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/* PA-RISC locks requires 16-byte alignment */
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. = ALIGN(16);
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.data.lock_aligned : { *(.data.lock_aligned) }
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. = ALIGN(ASM_PAGE_SIZE);
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/* nosave data is really only used for software suspend...it's here
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* just in case we ever implement it */
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__nosave_begin = .;
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.data_nosave : { *(.data.nosave) }
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. = ALIGN(ASM_PAGE_SIZE);
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__nosave_end = .;
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_edata = .; /* End of data section */
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__bss_start = .; /* BSS */
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/* page table entries need to be PAGE_SIZE aligned */
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. = ALIGN(ASM_PAGE_SIZE);
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.data.vmpages : {
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*(.data.vm0.pmd)
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*(.data.vm0.pgd)
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*(.data.vm0.pte)
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}
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.bss : { *(.bss) *(COMMON) }
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__bss_stop = .;
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/* assembler code expects init_task to be 16k aligned */
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. = ALIGN(16384); /* init_task */
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.data.init_task : { *(.data.init_task) }
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/* The interrupt stack is currently partially coded, but not yet
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* implemented */
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. = ALIGN(16384);
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init_istack : { *(init_istack) }
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#ifdef CONFIG_64BIT
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. = ALIGN(16); /* Linkage tables */
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.opd : { *(.opd) } PROVIDE (__gp = .);
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.plt : { *(.plt) }
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.dlt : { *(.dlt) }
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#endif
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/* reserve space for interrupt stack by aligning __init* to 16k */
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. = ALIGN(16384);
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__init_begin = .;
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.init.text : {
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_sinittext = .;
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*(.init.text)
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_einittext = .;
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}
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.init.data : { *(.init.data) }
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. = ALIGN(16);
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__setup_start = .;
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.init.setup : { *(.init.setup) }
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__setup_end = .;
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__initcall_start = .;
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.initcall.init : {
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*(.initcall1.init)
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*(.initcall2.init)
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*(.initcall3.init)
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*(.initcall4.init)
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*(.initcall5.init)
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*(.initcall6.init)
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*(.initcall7.init)
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}
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__initcall_end = .;
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__con_initcall_start = .;
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.con_initcall.init : { *(.con_initcall.init) }
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__con_initcall_end = .;
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SECURITY_INIT
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/* alternate instruction replacement. This is a mechanism x86 uses
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* to detect the CPU type and replace generic instruction sequences
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* with CPU specific ones. We don't currently do this in PA, but
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* it seems like a good idea... */
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. = ALIGN(4);
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__alt_instructions = .;
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.altinstructions : { *(.altinstructions) }
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__alt_instructions_end = .;
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.altinstr_replacement : { *(.altinstr_replacement) }
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/* .exit.text is discard at runtime, not link time, to deal with references
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from .altinstructions and .eh_frame */
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.exit.text : { *(.exit.text) }
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.exit.data : { *(.exit.data) }
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. = ALIGN(ASM_PAGE_SIZE);
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__initramfs_start = .;
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.init.ramfs : { *(.init.ramfs) }
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__initramfs_end = .;
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. = ALIGN(32);
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__per_cpu_start = .;
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.data.percpu : { *(.data.percpu) }
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__per_cpu_end = .;
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. = ALIGN(ASM_PAGE_SIZE);
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__init_end = .;
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/* freed after init ends here */
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_end = . ;
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/* Sections to be discarded */
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/DISCARD/ : {
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*(.exitcall.exit)
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#ifdef CONFIG_64BIT
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/* temporary hack until binutils is fixed to not emit these
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for static binaries */
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*(.interp)
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*(.dynsym)
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*(.dynstr)
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*(.dynamic)
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*(.hash)
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#endif
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}
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STABS_DEBUG
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.note 0 : { *(.note) }
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}
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