1/* SPDX-License-Identifier: GPL-2.0 */ 2/* ld script to make s390 Linux kernel 3 * Written by Martin Schwidefsky (schwidefsky@de.ibm.com) 4 */ 5 6#include <asm/thread_info.h> 7#include <asm/page.h> 8 9/* 10 * Put .bss..swapper_pg_dir as the first thing in .bss. This will 11 * make sure it has 16k alignment. 12 */ 13#define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir) 14 15/* Handle ro_after_init data on our own. */ 16#define RO_AFTER_INIT_DATA 17 18#include <asm-generic/vmlinux.lds.h> 19 20OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390") 21OUTPUT_ARCH(s390:64-bit) 22ENTRY(startup) 23jiffies = jiffies_64; 24 25PHDRS { 26 text PT_LOAD FLAGS(5); /* R_E */ 27 data PT_LOAD FLAGS(7); /* RWE */ 28 note PT_NOTE FLAGS(0); /* ___ */ 29} 30 31SECTIONS 32{ 33 . = 0x00000000; 34 .text : { 35 /* Text and read-only data */ 36 HEAD_TEXT 37 /* 38 * E.g. perf doesn't like symbols starting at address zero, 39 * therefore skip the initial PSW and channel program located 40 * at address zero and let _text start at 0x200. 41 */ 42 _text = 0x200; 43 TEXT_TEXT 44 SCHED_TEXT 45 CPUIDLE_TEXT 46 LOCK_TEXT 47 KPROBES_TEXT 48 IRQENTRY_TEXT 49 SOFTIRQENTRY_TEXT 50 *(.fixup) 51 *(.gnu.warning) 52 } :text = 0x0700 53 54 . = ALIGN(PAGE_SIZE); 55 _etext = .; /* End of text section */ 56 57 NOTES :text :note 58 59 .dummy : { *(.dummy) } :data 60 61 RO_DATA_SECTION(PAGE_SIZE) 62 63#ifdef CONFIG_SHARED_KERNEL 64 . = ALIGN(0x100000); /* VM shared segments are 1MB aligned */ 65#endif 66 67 . = ALIGN(PAGE_SIZE); 68 _eshared = .; /* End of shareable data */ 69 _sdata = .; /* Start of data section */ 70 71 . = ALIGN(PAGE_SIZE); 72 __start_ro_after_init = .; 73 .data..ro_after_init : { 74 *(.data..ro_after_init) 75 } 76 EXCEPTION_TABLE(16) 77 . = ALIGN(PAGE_SIZE); 78 __end_ro_after_init = .; 79 80 RW_DATA_SECTION(0x100, PAGE_SIZE, THREAD_SIZE) 81 82 _edata = .; /* End of data section */ 83 84 /* will be freed after init */ 85 . = ALIGN(PAGE_SIZE); /* Init code and data */ 86 __init_begin = .; 87 88 . = ALIGN(PAGE_SIZE); 89 .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) { 90 VMLINUX_SYMBOL(_sinittext) = . ; 91 INIT_TEXT 92 . = ALIGN(PAGE_SIZE); 93 VMLINUX_SYMBOL(_einittext) = . ; 94 } 95 96 /* 97 * .exit.text is discarded at runtime, not link time, 98 * to deal with references from __bug_table 99 */ 100 .exit.text : { 101 EXIT_TEXT 102 } 103 104 .exit.data : { 105 EXIT_DATA 106 } 107 108 /* early.c uses stsi, which requires page aligned data. */ 109 . = ALIGN(PAGE_SIZE); 110 INIT_DATA_SECTION(0x100) 111 112 PERCPU_SECTION(0x100) 113 . = ALIGN(PAGE_SIZE); 114 __init_end = .; /* freed after init ends here */ 115 116 BSS_SECTION(PAGE_SIZE, 4 * PAGE_SIZE, PAGE_SIZE) 117 118 _end = . ; 119 120 /* Debugging sections. */ 121 STABS_DEBUG 122 DWARF_DEBUG 123 124 /* Sections to be discarded */ 125 DISCARDS 126} 127