1/* SPDX-License-Identifier: GPL-2.0 */ 2/* Kernel link layout for various "sections" 3 * 4 * Copyright (C) 1999-2003 Matthew Wilcox <willy at parisc-linux.org> 5 * Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org> 6 * Copyright (C) 2000 John Marvin <jsm at parisc-linux.org> 7 * Copyright (C) 2000 Michael Ang <mang with subcarrier.org> 8 * Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org> 9 * Copyright (C) 2003 James Bottomley <jejb with parisc-linux.org> 10 * Copyright (C) 2006-2013 Helge Deller <deller@gmx.de> 11 */ 12 13/* 14 * Put page table entries (swapper_pg_dir) as the first thing in .bss. This 15 * will ensure that it has .bss alignment (PAGE_SIZE). 16 */ 17#define BSS_FIRST_SECTIONS *(.data..vm0.pmd) \ 18 *(.data..vm0.pgd) \ 19 *(.data..vm0.pte) 20 21#define CC_USING_PATCHABLE_FUNCTION_ENTRY 22 23#include <asm-generic/vmlinux.lds.h> 24 25/* needed for the processor specific cache alignment size */ 26#include <asm/cache.h> 27#include <asm/page.h> 28#include <asm/asm-offsets.h> 29#include <asm/thread_info.h> 30 31/* ld script to make hppa Linux kernel */ 32#ifndef CONFIG_64BIT 33OUTPUT_FORMAT("elf32-hppa-linux") 34OUTPUT_ARCH(hppa) 35#else 36OUTPUT_FORMAT("elf64-hppa-linux") 37OUTPUT_ARCH(hppa:hppa2.0w) 38#endif 39 40#define EXIT_TEXT_SECTIONS() .exit.text : { EXIT_TEXT } 41#if !defined(CONFIG_64BIT) || defined(CONFIG_MLONGCALLS) 42#define MLONGCALL_KEEP(x) 43#define MLONGCALL_DISCARD(x) x 44#else 45#define MLONGCALL_KEEP(x) x 46#define MLONGCALL_DISCARD(x) 47#endif 48 49ENTRY(parisc_kernel_start) 50#ifndef CONFIG_64BIT 51jiffies = jiffies_64 + 4; 52#else 53jiffies = jiffies_64; 54#endif 55SECTIONS 56{ 57 . = KERNEL_BINARY_TEXT_START; 58 59 __init_begin = .; 60 HEAD_TEXT_SECTION 61 MLONGCALL_DISCARD(INIT_TEXT_SECTION(8)) 62 63 . = ALIGN(PAGE_SIZE); 64 INIT_DATA_SECTION(PAGE_SIZE) 65 MLONGCALL_DISCARD(EXIT_TEXT_SECTIONS()) 66 .exit.data : 67 { 68 EXIT_DATA 69 } 70 PERCPU_SECTION(8) 71 . = ALIGN(4); 72 .altinstructions : { 73 __alt_instructions = .; 74 *(.altinstructions) 75 __alt_instructions_end = .; 76 } 77 . = ALIGN(HUGEPAGE_SIZE); 78 __init_end = .; 79 /* freed after init ends here */ 80 81 _text = .; /* Text and read-only data */ 82 _stext = .; 83 MLONGCALL_KEEP(INIT_TEXT_SECTION(8)) 84 .text ALIGN(PAGE_SIZE) : { 85 TEXT_TEXT 86 LOCK_TEXT 87 SCHED_TEXT 88 CPUIDLE_TEXT 89 KPROBES_TEXT 90 IRQENTRY_TEXT 91 SOFTIRQENTRY_TEXT 92 *(.text.do_softirq) 93 *(.text.sys_exit) 94 *(.text.do_sigaltstack) 95 *(.text.do_fork) 96 *(.text.div) 97 *($$*) /* millicode routines */ 98 *(.text.*) 99 *(.fixup) 100 *(.lock.text) /* out-of-line lock text */ 101 *(.gnu.warning) 102 } 103 MLONGCALL_KEEP(EXIT_TEXT_SECTIONS()) 104 . = ALIGN(PAGE_SIZE); 105 _etext = .; 106 /* End of text section */ 107 108 /* Start of data section */ 109 _sdata = .; 110 111 /* Architecturally we need to keep __gp below 0x1000000 and thus 112 * in front of RO_DATA_SECTION() which stores lots of tracepoint 113 * and ftrace symbols. */ 114#ifdef CONFIG_64BIT 115 . = ALIGN(16); 116 /* Linkage tables */ 117 .opd : { 118 __start_opd = .; 119 *(.opd) 120 __end_opd = .; 121 } PROVIDE (__gp = .); 122 .plt : { 123 *(.plt) 124 } 125 .dlt : { 126 *(.dlt) 127 } 128#endif 129 130 RO_DATA_SECTION(8) 131 132 /* RO because of BUILDTIME_EXTABLE_SORT */ 133 EXCEPTION_TABLE(8) 134 NOTES 135 136 /* unwind info */ 137 .PARISC.unwind : { 138 __start___unwind = .; 139 *(.PARISC.unwind) 140 __stop___unwind = .; 141 } 142 143 /* writeable */ 144 /* Make sure this is page aligned so 145 * that we can properly leave these 146 * as writable 147 */ 148 . = ALIGN(HUGEPAGE_SIZE); 149 data_start = .; 150 151 /* Data */ 152 RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, PAGE_SIZE) 153 154 /* PA-RISC locks requires 16-byte alignment */ 155 . = ALIGN(16); 156 .data..lock_aligned : { 157 *(.data..lock_aligned) 158 } 159 160 /* End of data section */ 161 _edata = .; 162 163 /* BSS */ 164 BSS_SECTION(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE) 165 166 . = ALIGN(HUGEPAGE_SIZE); 167 _end = . ; 168 169 STABS_DEBUG 170 .note 0 : { *(.note) } 171 172 /* Sections to be discarded */ 173 DISCARDS 174 /DISCARD/ : { 175#ifdef CONFIG_64BIT 176 /* temporary hack until binutils is fixed to not emit these 177 * for static binaries 178 */ 179 *(.interp) 180 *(.dynsym) 181 *(.dynstr) 182 *(.dynamic) 183 *(.hash) 184 *(.gnu.hash) 185#endif 186 } 187} 188