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