1/* Kernel link layout for various "sections" 2 * 3 * Copyright (C) 1999-2003 Matthew Wilcox <willy at parisc-linux.org> 4 * Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org> 5 * Copyright (C) 2000 John Marvin <jsm at parisc-linux.org> 6 * Copyright (C) 2000 Michael Ang <mang with subcarrier.org> 7 * Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org> 8 * Copyright (C) 2003 James Bottomley <jejb with parisc-linux.org> 9 * Copyright (C) 2006-2013 Helge Deller <deller@gmx.de> 10 */ 11 12/* 13 * Put page table entries (swapper_pg_dir) as the first thing in .bss. This 14 * will ensure that it has .bss alignment (PAGE_SIZE). 15 */ 16#define BSS_FIRST_SECTIONS *(.data..vm0.pmd) \ 17 *(.data..vm0.pgd) \ 18 *(.data..vm0.pte) 19 20#include <asm-generic/vmlinux.lds.h> 21 22/* needed for the processor specific cache alignment size */ 23#include <asm/cache.h> 24#include <asm/page.h> 25#include <asm/asm-offsets.h> 26#include <asm/thread_info.h> 27 28/* ld script to make hppa Linux kernel */ 29#ifndef CONFIG_64BIT 30OUTPUT_FORMAT("elf32-hppa-linux") 31OUTPUT_ARCH(hppa) 32#else 33OUTPUT_FORMAT("elf64-hppa-linux") 34OUTPUT_ARCH(hppa:hppa2.0w) 35#endif 36 37ENTRY(parisc_kernel_start) 38#ifndef CONFIG_64BIT 39jiffies = jiffies_64 + 4; 40#else 41jiffies = jiffies_64; 42#endif 43SECTIONS 44{ 45 . = KERNEL_BINARY_TEXT_START; 46 47 __init_begin = .; 48 HEAD_TEXT_SECTION 49 INIT_TEXT_SECTION(8) 50 51 . = ALIGN(PAGE_SIZE); 52 INIT_DATA_SECTION(PAGE_SIZE) 53 /* we have to discard exit text and such at runtime, not link time */ 54 .exit.text : 55 { 56 EXIT_TEXT 57 } 58 .exit.data : 59 { 60 EXIT_DATA 61 } 62 PERCPU_SECTION(8) 63 . = ALIGN(HUGEPAGE_SIZE); 64 __init_end = .; 65 /* freed after init ends here */ 66 67 _text = .; /* Text and read-only data */ 68 _stext = .; 69 .text ALIGN(PAGE_SIZE) : { 70 TEXT_TEXT 71 SCHED_TEXT 72 LOCK_TEXT 73 KPROBES_TEXT 74 IRQENTRY_TEXT 75 *(.text.do_softirq) 76 *(.text.sys_exit) 77 *(.text.do_sigaltstack) 78 *(.text.do_fork) 79 *(.text.*) 80 *(.fixup) 81 *(.lock.text) /* out-of-line lock text */ 82 *(.gnu.warning) 83 } 84 . = ALIGN(PAGE_SIZE); 85 _etext = .; 86 /* End of text section */ 87 88 /* Start of data section */ 89 _sdata = .; 90 91 RO_DATA_SECTION(8) 92 93#ifdef CONFIG_64BIT 94 . = ALIGN(16); 95 /* Linkage tables */ 96 .opd : { 97 *(.opd) 98 } PROVIDE (__gp = .); 99 .plt : { 100 *(.plt) 101 } 102 .dlt : { 103 *(.dlt) 104 } 105#endif 106 107 /* unwind info */ 108 .PARISC.unwind : { 109 __start___unwind = .; 110 *(.PARISC.unwind) 111 __stop___unwind = .; 112 } 113 114 /* writeable */ 115 /* Make sure this is page aligned so 116 * that we can properly leave these 117 * as writable 118 */ 119 . = ALIGN(HUGEPAGE_SIZE); 120 data_start = .; 121 122 EXCEPTION_TABLE(8) 123 NOTES 124 125 /* Data */ 126 RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, PAGE_SIZE) 127 128 /* PA-RISC locks requires 16-byte alignment */ 129 . = ALIGN(16); 130 .data..lock_aligned : { 131 *(.data..lock_aligned) 132 } 133 134 /* End of data section */ 135 _edata = .; 136 137 /* BSS */ 138 BSS_SECTION(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE) 139 140 /* bootmap is allocated in setup_bootmem() directly behind bss. */ 141 142 . = ALIGN(HUGEPAGE_SIZE); 143 _end = . ; 144 145 STABS_DEBUG 146 .note 0 : { *(.note) } 147 148 /* Sections to be discarded */ 149 DISCARDS 150 /DISCARD/ : { 151#ifdef CONFIG_64BIT 152 /* temporary hack until binutils is fixed to not emit these 153 * for static binaries 154 */ 155 *(.interp) 156 *(.dynsym) 157 *(.dynstr) 158 *(.dynamic) 159 *(.hash) 160 *(.gnu.hash) 161#endif 162 } 163} 164