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 CPUIDLE_TEXT 73 LOCK_TEXT 74 KPROBES_TEXT 75 IRQENTRY_TEXT 76 SOFTIRQENTRY_TEXT 77 *(.text.do_softirq) 78 *(.text.sys_exit) 79 *(.text.do_sigaltstack) 80 *(.text.do_fork) 81 *(.text.*) 82 *(.fixup) 83 *(.lock.text) /* out-of-line lock text */ 84 *(.gnu.warning) 85 } 86 . = ALIGN(PAGE_SIZE); 87 _etext = .; 88 /* End of text section */ 89 90 /* Start of data section */ 91 _sdata = .; 92 93 /* Architecturally we need to keep __gp below 0x1000000 and thus 94 * in front of RO_DATA_SECTION() which stores lots of tracepoint 95 * and ftrace symbols. */ 96#ifdef CONFIG_64BIT 97 . = ALIGN(16); 98 /* Linkage tables */ 99 .opd : { 100 *(.opd) 101 } PROVIDE (__gp = .); 102 .plt : { 103 *(.plt) 104 } 105 .dlt : { 106 *(.dlt) 107 } 108#endif 109 110 RO_DATA_SECTION(8) 111 112 /* RO because of BUILDTIME_EXTABLE_SORT */ 113 EXCEPTION_TABLE(8) 114 NOTES 115 116 /* unwind info */ 117 .PARISC.unwind : { 118 __start___unwind = .; 119 *(.PARISC.unwind) 120 __stop___unwind = .; 121 } 122 123 /* writeable */ 124 /* Make sure this is page aligned so 125 * that we can properly leave these 126 * as writable 127 */ 128 . = ALIGN(HUGEPAGE_SIZE); 129 data_start = .; 130 131 /* Data */ 132 RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, PAGE_SIZE) 133 134 /* PA-RISC locks requires 16-byte alignment */ 135 . = ALIGN(16); 136 .data..lock_aligned : { 137 *(.data..lock_aligned) 138 } 139 140 /* End of data section */ 141 _edata = .; 142 143 /* BSS */ 144 BSS_SECTION(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE) 145 146 . = ALIGN(HUGEPAGE_SIZE); 147 _end = . ; 148 149 STABS_DEBUG 150 .note 0 : { *(.note) } 151 152 /* Sections to be discarded */ 153 DISCARDS 154 /DISCARD/ : { 155#ifdef CONFIG_64BIT 156 /* temporary hack until binutils is fixed to not emit these 157 * for static binaries 158 */ 159 *(.interp) 160 *(.dynsym) 161 *(.dynstr) 162 *(.dynamic) 163 *(.hash) 164 *(.gnu.hash) 165#endif 166 } 167} 168