Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Helper macros to support writing architecture specific |
| 3 | * linker scripts. |
| 4 | * |
| 5 | * A minimal linker scripts has following content: |
| 6 | * [This is a sample, architectures may have special requiriements] |
| 7 | * |
| 8 | * OUTPUT_FORMAT(...) |
| 9 | * OUTPUT_ARCH(...) |
| 10 | * ENTRY(...) |
| 11 | * SECTIONS |
| 12 | * { |
| 13 | * . = START; |
| 14 | * __init_begin = .; |
Sam Ravnborg | 7923f90 | 2009-06-14 22:10:41 +0200 | [diff] [blame] | 15 | * HEAD_TEXT_SECTION |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 16 | * INIT_TEXT_SECTION(PAGE_SIZE) |
| 17 | * INIT_DATA_SECTION(...) |
Tejun Heo | 0415b00d1 | 2011-03-24 18:50:09 +0100 | [diff] [blame] | 18 | * PERCPU_SECTION(CACHELINE_SIZE) |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 19 | * __init_end = .; |
| 20 | * |
| 21 | * _stext = .; |
| 22 | * TEXT_SECTION = 0 |
| 23 | * _etext = .; |
| 24 | * |
| 25 | * _sdata = .; |
| 26 | * RO_DATA_SECTION(PAGE_SIZE) |
| 27 | * RW_DATA_SECTION(...) |
| 28 | * _edata = .; |
| 29 | * |
| 30 | * EXCEPTION_TABLE(...) |
| 31 | * NOTES |
| 32 | * |
Tim Abbott | 04e448d | 2009-07-12 18:23:33 -0400 | [diff] [blame] | 33 | * BSS_SECTION(0, 0, 0) |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 34 | * _end = .; |
| 35 | * |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 36 | * STABS_DEBUG |
| 37 | * DWARF_DEBUG |
Tejun Heo | 023bf6f | 2009-07-09 11:27:40 +0900 | [diff] [blame] | 38 | * |
| 39 | * DISCARDS // must be the last |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 40 | * } |
| 41 | * |
| 42 | * [__init_begin, __init_end] is the init section that may be freed after init |
Yalin Wang | 562c85c | 2014-09-26 03:30:59 +0100 | [diff] [blame] | 43 | * // __init_begin and __init_end should be page aligned, so that we can |
| 44 | * // free the whole .init memory |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 45 | * [_stext, _etext] is the text section |
| 46 | * [_sdata, _edata] is the data section |
| 47 | * |
| 48 | * Some of the included output section have their own set of constants. |
| 49 | * Examples are: [__initramfs_start, __initramfs_end] for initramfs and |
| 50 | * [__nosave_begin, __nosave_end] for the nosave data |
| 51 | */ |
Tim Abbott | c80d471 | 2009-04-25 22:10:56 -0400 | [diff] [blame] | 52 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | #ifndef LOAD_OFFSET |
| 54 | #define LOAD_OFFSET 0 |
| 55 | #endif |
| 56 | |
Rusty Russell | b92021b | 2013-03-15 15:04:17 +1030 | [diff] [blame] | 57 | #include <linux/export.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | |
Sam Ravnborg | 6d30e3a | 2005-07-14 20:15:44 +0000 | [diff] [blame] | 59 | /* Align . to a 8 byte boundary equals to maximum function alignment. */ |
| 60 | #define ALIGN_FUNCTION() . = ALIGN(8) |
| 61 | |
Sam Ravnborg | 07fca0e | 2010-07-10 08:35:00 +0200 | [diff] [blame] | 62 | /* |
Nicholas Piggin | 1fdee09 | 2017-07-26 22:46:27 +1000 | [diff] [blame] | 63 | * LD_DEAD_CODE_DATA_ELIMINATION option enables -fdata-sections, which |
| 64 | * generates .data.identifier sections, which need to be pulled in with |
| 65 | * .data. We don't want to pull in .data..other sections, which Linux |
| 66 | * has defined. Same for text and bss. |
| 67 | */ |
| 68 | #ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION |
| 69 | #define TEXT_MAIN .text .text.[0-9a-zA-Z_]* |
Sami Tolvanen | 00a195e | 2017-05-11 15:03:36 -0700 | [diff] [blame] | 70 | #define TEXT_CFI_MAIN .text.cfi .text.[0-9a-zA-Z_]*.cfi |
Nicholas Piggin | 1fdee09 | 2017-07-26 22:46:27 +1000 | [diff] [blame] | 71 | #define DATA_MAIN .data .data.[0-9a-zA-Z_]* |
| 72 | #define BSS_MAIN .bss .bss.[0-9a-zA-Z_]* |
| 73 | #else |
| 74 | #define TEXT_MAIN .text |
Sami Tolvanen | 00a195e | 2017-05-11 15:03:36 -0700 | [diff] [blame] | 75 | #define TEXT_CFI_MAIN .text.cfi |
Nicholas Piggin | 1fdee09 | 2017-07-26 22:46:27 +1000 | [diff] [blame] | 76 | #define DATA_MAIN .data |
| 77 | #define BSS_MAIN .bss |
| 78 | #endif |
| 79 | |
| 80 | /* |
Sam Ravnborg | 07fca0e | 2010-07-10 08:35:00 +0200 | [diff] [blame] | 81 | * Align to a 32 byte boundary equal to the |
| 82 | * alignment gcc 4.5 uses for a struct |
| 83 | */ |
Dirk Brandewie | aab9433 | 2010-12-22 11:57:26 -0800 | [diff] [blame] | 84 | #define STRUCT_ALIGNMENT 32 |
| 85 | #define STRUCT_ALIGN() . = ALIGN(STRUCT_ALIGNMENT) |
Sam Ravnborg | 07fca0e | 2010-07-10 08:35:00 +0200 | [diff] [blame] | 86 | |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 87 | /* The actual configuration determine if the init/exit sections |
| 88 | * are handled as text/data or they can be discarded (which |
| 89 | * often happens at runtime) |
| 90 | */ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 91 | #ifdef CONFIG_HOTPLUG_CPU |
| 92 | #define CPU_KEEP(sec) *(.cpu##sec) |
| 93 | #define CPU_DISCARD(sec) |
| 94 | #else |
| 95 | #define CPU_KEEP(sec) |
| 96 | #define CPU_DISCARD(sec) *(.cpu##sec) |
| 97 | #endif |
| 98 | |
Adrian Bunk | 1a3fb6d | 2008-01-24 22:20:18 +0100 | [diff] [blame] | 99 | #if defined(CONFIG_MEMORY_HOTPLUG) |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 100 | #define MEM_KEEP(sec) *(.mem##sec) |
| 101 | #define MEM_DISCARD(sec) |
| 102 | #else |
| 103 | #define MEM_KEEP(sec) |
| 104 | #define MEM_DISCARD(sec) *(.mem##sec) |
| 105 | #endif |
| 106 | |
Steven Rostedt | 8da3821 | 2008-08-14 15:45:07 -0400 | [diff] [blame] | 107 | #ifdef CONFIG_FTRACE_MCOUNT_RECORD |
John Reiser | 4b3b4c5 | 2009-07-27 11:23:50 -0700 | [diff] [blame] | 108 | #define MCOUNT_REC() . = ALIGN(8); \ |
| 109 | VMLINUX_SYMBOL(__start_mcount_loc) = .; \ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 110 | KEEP(*(__mcount_loc)) \ |
Steven Rostedt | 8da3821 | 2008-08-14 15:45:07 -0400 | [diff] [blame] | 111 | VMLINUX_SYMBOL(__stop_mcount_loc) = .; |
| 112 | #else |
| 113 | #define MCOUNT_REC() |
| 114 | #endif |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 115 | |
Steven Rostedt | 2ed84ee | 2008-11-12 15:24:24 -0500 | [diff] [blame] | 116 | #ifdef CONFIG_TRACE_BRANCH_PROFILING |
Steven Rostedt | 45b7974 | 2008-11-21 00:40:40 -0500 | [diff] [blame] | 117 | #define LIKELY_PROFILE() VMLINUX_SYMBOL(__start_annotated_branch_profile) = .; \ |
| 118 | *(_ftrace_annotated_branch) \ |
| 119 | VMLINUX_SYMBOL(__stop_annotated_branch_profile) = .; |
Steven Rostedt | 1f0d69a | 2008-11-12 00:14:39 -0500 | [diff] [blame] | 120 | #else |
| 121 | #define LIKELY_PROFILE() |
| 122 | #endif |
| 123 | |
Steven Rostedt | 2bcd521 | 2008-11-21 01:30:54 -0500 | [diff] [blame] | 124 | #ifdef CONFIG_PROFILE_ALL_BRANCHES |
| 125 | #define BRANCH_PROFILE() VMLINUX_SYMBOL(__start_branch_profile) = .; \ |
| 126 | *(_ftrace_branch) \ |
| 127 | VMLINUX_SYMBOL(__stop_branch_profile) = .; |
| 128 | #else |
| 129 | #define BRANCH_PROFILE() |
| 130 | #endif |
| 131 | |
Masami Hiramatsu | 376e242 | 2014-04-17 17:17:05 +0900 | [diff] [blame] | 132 | #ifdef CONFIG_KPROBES |
Vineet Gupta | 69902c7 | 2014-05-01 10:56:44 +0530 | [diff] [blame] | 133 | #define KPROBE_BLACKLIST() . = ALIGN(8); \ |
| 134 | VMLINUX_SYMBOL(__start_kprobe_blacklist) = .; \ |
Masami Hiramatsu | 376e242 | 2014-04-17 17:17:05 +0900 | [diff] [blame] | 135 | *(_kprobe_blacklist) \ |
| 136 | VMLINUX_SYMBOL(__stop_kprobe_blacklist) = .; |
| 137 | #else |
| 138 | #define KPROBE_BLACKLIST() |
| 139 | #endif |
| 140 | |
Tom Zanussi | 5f77a88 | 2009-04-08 03:14:01 -0500 | [diff] [blame] | 141 | #ifdef CONFIG_EVENT_TRACING |
Steven Rostedt | e4a9ea5 | 2011-01-27 09:15:30 -0500 | [diff] [blame] | 142 | #define FTRACE_EVENTS() . = ALIGN(8); \ |
| 143 | VMLINUX_SYMBOL(__start_ftrace_events) = .; \ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 144 | KEEP(*(_ftrace_events)) \ |
Steven Rostedt (Red Hat) | 0c564a5 | 2015-03-24 17:58:09 -0400 | [diff] [blame] | 145 | VMLINUX_SYMBOL(__stop_ftrace_events) = .; \ |
| 146 | VMLINUX_SYMBOL(__start_ftrace_enum_maps) = .; \ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 147 | KEEP(*(_ftrace_enum_map)) \ |
Steven Rostedt (Red Hat) | 0c564a5 | 2015-03-24 17:58:09 -0400 | [diff] [blame] | 148 | VMLINUX_SYMBOL(__stop_ftrace_enum_maps) = .; |
Steven Rostedt | b77e38a | 2009-02-24 10:21:36 -0500 | [diff] [blame] | 149 | #else |
| 150 | #define FTRACE_EVENTS() |
| 151 | #endif |
| 152 | |
Lai Jiangshan | 1ba28e0 | 2009-03-06 17:21:48 +0100 | [diff] [blame] | 153 | #ifdef CONFIG_TRACING |
| 154 | #define TRACE_PRINTKS() VMLINUX_SYMBOL(__start___trace_bprintk_fmt) = .; \ |
| 155 | *(__trace_printk_fmt) /* Trace_printk fmt' pointer */ \ |
| 156 | VMLINUX_SYMBOL(__stop___trace_bprintk_fmt) = .; |
Steven Rostedt (Red Hat) | 102c932 | 2013-07-12 17:07:27 -0400 | [diff] [blame] | 157 | #define TRACEPOINT_STR() VMLINUX_SYMBOL(__start___tracepoint_str) = .; \ |
| 158 | *(__tracepoint_str) /* Trace_printk fmt' pointer */ \ |
| 159 | VMLINUX_SYMBOL(__stop___tracepoint_str) = .; |
Lai Jiangshan | 1ba28e0 | 2009-03-06 17:21:48 +0100 | [diff] [blame] | 160 | #else |
| 161 | #define TRACE_PRINTKS() |
Steven Rostedt (Red Hat) | 102c932 | 2013-07-12 17:07:27 -0400 | [diff] [blame] | 162 | #define TRACEPOINT_STR() |
Lai Jiangshan | 1ba28e0 | 2009-03-06 17:21:48 +0100 | [diff] [blame] | 163 | #endif |
| 164 | |
Frederic Weisbecker | bed1ffc | 2009-03-13 15:42:11 +0100 | [diff] [blame] | 165 | #ifdef CONFIG_FTRACE_SYSCALLS |
Steven Rostedt | 3d56e33 | 2011-02-02 17:06:09 -0500 | [diff] [blame] | 166 | #define TRACE_SYSCALLS() . = ALIGN(8); \ |
| 167 | VMLINUX_SYMBOL(__start_syscalls_metadata) = .; \ |
Frederic Weisbecker | bed1ffc | 2009-03-13 15:42:11 +0100 | [diff] [blame] | 168 | *(__syscalls_metadata) \ |
| 169 | VMLINUX_SYMBOL(__stop_syscalls_metadata) = .; |
| 170 | #else |
| 171 | #define TRACE_SYSCALLS() |
| 172 | #endif |
| 173 | |
Peter Hurley | 470ca0d | 2015-03-09 16:27:21 -0400 | [diff] [blame] | 174 | #ifdef CONFIG_SERIAL_EARLYCON |
Daniel Kurtz | a72ac67 | 2018-04-06 17:21:53 -0600 | [diff] [blame] | 175 | #define EARLYCON_TABLE() . = ALIGN(8); \ |
Peter Hurley | 470ca0d | 2015-03-09 16:27:21 -0400 | [diff] [blame] | 176 | VMLINUX_SYMBOL(__earlycon_table) = .; \ |
| 177 | *(__earlycon_table) \ |
Peter Hurley | 2eaa790 | 2016-01-16 15:23:39 -0800 | [diff] [blame] | 178 | VMLINUX_SYMBOL(__earlycon_table_end) = .; |
Peter Hurley | 470ca0d | 2015-03-09 16:27:21 -0400 | [diff] [blame] | 179 | #else |
| 180 | #define EARLYCON_TABLE() |
| 181 | #endif |
Dirk Brandewie | aab9433 | 2010-12-22 11:57:26 -0800 | [diff] [blame] | 182 | |
Rob Herring | 0630928 | 2014-03-24 16:59:20 -0500 | [diff] [blame] | 183 | #define ___OF_TABLE(cfg, name) _OF_TABLE_##cfg(name) |
| 184 | #define __OF_TABLE(cfg, name) ___OF_TABLE(cfg, name) |
Masahiro Yamada | 5ee02af | 2016-06-14 14:58:58 +0900 | [diff] [blame] | 185 | #define OF_TABLE(cfg, name) __OF_TABLE(IS_ENABLED(cfg), name) |
Rob Herring | 0630928 | 2014-03-24 16:59:20 -0500 | [diff] [blame] | 186 | #define _OF_TABLE_0(name) |
| 187 | #define _OF_TABLE_1(name) \ |
Thomas Petazzoni | f6e916b | 2012-11-20 23:00:52 +0100 | [diff] [blame] | 188 | . = ALIGN(8); \ |
Rob Herring | 0630928 | 2014-03-24 16:59:20 -0500 | [diff] [blame] | 189 | VMLINUX_SYMBOL(__##name##_of_table) = .; \ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 190 | KEEP(*(__##name##_of_table)) \ |
| 191 | KEEP(*(__##name##_of_table_end)) |
Dirk Brandewie | aab9433 | 2010-12-22 11:57:26 -0800 | [diff] [blame] | 192 | |
Rob Herring | 0630928 | 2014-03-24 16:59:20 -0500 | [diff] [blame] | 193 | #define CLKSRC_OF_TABLES() OF_TABLE(CONFIG_CLKSRC_OF, clksrc) |
| 194 | #define IRQCHIP_OF_MATCH_TABLE() OF_TABLE(CONFIG_IRQCHIP, irqchip) |
| 195 | #define CLK_OF_TABLES() OF_TABLE(CONFIG_COMMON_CLK, clk) |
Will Deacon | 1cd076b | 2014-08-27 14:40:58 +0100 | [diff] [blame] | 196 | #define IOMMU_OF_TABLES() OF_TABLE(CONFIG_OF_IOMMU, iommu) |
Rob Herring | 0630928 | 2014-03-24 16:59:20 -0500 | [diff] [blame] | 197 | #define RESERVEDMEM_OF_TABLES() OF_TABLE(CONFIG_OF_RESERVED_MEM, reservedmem) |
| 198 | #define CPU_METHOD_OF_TABLES() OF_TABLE(CONFIG_SMP, cpu_method) |
Daniel Lezcano | 449e056 | 2015-02-02 16:32:45 +0100 | [diff] [blame] | 199 | #define CPUIDLE_METHOD_OF_TABLES() OF_TABLE(CONFIG_CPU_IDLE, cpuidle_method) |
Stephen Boyd | 6c3ff8b | 2013-10-30 18:21:09 -0700 | [diff] [blame] | 200 | |
Marc Zyngier | e647b53 | 2015-09-28 15:49:12 +0100 | [diff] [blame] | 201 | #ifdef CONFIG_ACPI |
| 202 | #define ACPI_PROBE_TABLE(name) \ |
| 203 | . = ALIGN(8); \ |
| 204 | VMLINUX_SYMBOL(__##name##_acpi_probe_table) = .; \ |
| 205 | *(__##name##_acpi_probe_table) \ |
| 206 | VMLINUX_SYMBOL(__##name##_acpi_probe_table_end) = .; |
| 207 | #else |
| 208 | #define ACPI_PROBE_TABLE(name) |
| 209 | #endif |
| 210 | |
Dirk Brandewie | aab9433 | 2010-12-22 11:57:26 -0800 | [diff] [blame] | 211 | #define KERNEL_DTB() \ |
| 212 | STRUCT_ALIGN(); \ |
| 213 | VMLINUX_SYMBOL(__dtb_start) = .; \ |
| 214 | *(.dtb.init.rodata) \ |
| 215 | VMLINUX_SYMBOL(__dtb_end) = .; |
| 216 | |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 217 | /* |
| 218 | * .data section |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 219 | */ |
Sam Ravnborg | ca96725 | 2007-05-17 13:38:44 +0200 | [diff] [blame] | 220 | #define DATA_DATA \ |
Nicholas Piggin | 1fdee09 | 2017-07-26 22:46:27 +1000 | [diff] [blame] | 221 | *(DATA_MAIN) \ |
Sam Ravnborg | 312b148 | 2008-01-28 20:21:15 +0100 | [diff] [blame] | 222 | *(.ref.data) \ |
Mike Frysinger | d356c0b | 2010-10-26 14:22:29 -0700 | [diff] [blame] | 223 | *(.data..shared_aligned) /* percpu related */ \ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 224 | MEM_KEEP(init.data) \ |
| 225 | MEM_KEEP(exit.data) \ |
Jan Beulich | 7ccaba5 | 2012-03-23 15:01:52 -0700 | [diff] [blame] | 226 | *(.data.unlikely) \ |
Mathieu Desnoyers | 6549864 | 2011-01-26 17:26:22 -0500 | [diff] [blame] | 227 | STRUCT_ALIGN(); \ |
Mathieu Desnoyers | 97e1c18 | 2008-07-18 12:16:16 -0400 | [diff] [blame] | 228 | *(__tracepoints) \ |
Jason Baron | e9d376f | 2009-02-05 11:51:38 -0500 | [diff] [blame] | 229 | /* implement dynamic printk debug */ \ |
Jason Baron | d430d3d | 2011-03-16 17:29:47 -0400 | [diff] [blame] | 230 | . = ALIGN(8); \ |
| 231 | VMLINUX_SYMBOL(__start___jump_table) = .; \ |
| 232 | *(__jump_table) \ |
| 233 | VMLINUX_SYMBOL(__stop___jump_table) = .; \ |
Jason Baron | e9d376f | 2009-02-05 11:51:38 -0500 | [diff] [blame] | 234 | . = ALIGN(8); \ |
| 235 | VMLINUX_SYMBOL(__start___verbose) = .; \ |
| 236 | *(__verbose) \ |
| 237 | VMLINUX_SYMBOL(__stop___verbose) = .; \ |
Steven Rostedt | 2bcd521 | 2008-11-21 01:30:54 -0500 | [diff] [blame] | 238 | LIKELY_PROFILE() \ |
Steven Rostedt | b77e38a | 2009-02-24 10:21:36 -0500 | [diff] [blame] | 239 | BRANCH_PROFILE() \ |
Steven Rostedt (Red Hat) | 102c932 | 2013-07-12 17:07:27 -0400 | [diff] [blame] | 240 | TRACE_PRINTKS() \ |
| 241 | TRACEPOINT_STR() |
Sam Ravnborg | ca96725 | 2007-05-17 13:38:44 +0200 | [diff] [blame] | 242 | |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 243 | /* |
| 244 | * Data section helpers |
| 245 | */ |
| 246 | #define NOSAVE_DATA \ |
| 247 | . = ALIGN(PAGE_SIZE); \ |
| 248 | VMLINUX_SYMBOL(__nosave_begin) = .; \ |
Denys Vlasenko | 07b3bb1 | 2010-02-20 01:03:52 +0100 | [diff] [blame] | 249 | *(.data..nosave) \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 250 | . = ALIGN(PAGE_SIZE); \ |
| 251 | VMLINUX_SYMBOL(__nosave_end) = .; |
| 252 | |
| 253 | #define PAGE_ALIGNED_DATA(page_align) \ |
| 254 | . = ALIGN(page_align); \ |
Tim Abbott | 75b1348 | 2010-02-20 01:03:37 +0100 | [diff] [blame] | 255 | *(.data..page_aligned) |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 256 | |
| 257 | #define READ_MOSTLY_DATA(align) \ |
| 258 | . = ALIGN(align); \ |
Shaohua Li | 8369744 | 2011-01-12 16:59:38 -0800 | [diff] [blame] | 259 | *(.data..read_mostly) \ |
| 260 | . = ALIGN(align); |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 261 | |
| 262 | #define CACHELINE_ALIGNED_DATA(align) \ |
| 263 | . = ALIGN(align); \ |
Tim Abbott | 4af57b7 | 2010-02-20 01:03:34 +0100 | [diff] [blame] | 264 | *(.data..cacheline_aligned) |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 265 | |
Tim Abbott | 39a449d | 2009-06-23 18:53:15 -0400 | [diff] [blame] | 266 | #define INIT_TASK_DATA(align) \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 267 | . = ALIGN(align); \ |
Borislav Petkov | 91ed140 | 2016-03-31 16:21:02 +0200 | [diff] [blame] | 268 | VMLINUX_SYMBOL(__start_init_task) = .; \ |
| 269 | *(.data..init_task) \ |
| 270 | VMLINUX_SYMBOL(__end_init_task) = .; |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 271 | |
| 272 | /* |
Heiko Carstens | 32fb2fc | 2016-06-07 12:20:51 +0200 | [diff] [blame] | 273 | * Allow architectures to handle ro_after_init data on their |
| 274 | * own by defining an empty RO_AFTER_INIT_DATA. |
| 275 | */ |
| 276 | #ifndef RO_AFTER_INIT_DATA |
Jakub Kicinski | d7c19b0 | 2016-11-10 10:46:44 -0800 | [diff] [blame] | 277 | #define RO_AFTER_INIT_DATA \ |
| 278 | __start_data_ro_after_init = .; \ |
| 279 | *(.data..ro_after_init) \ |
| 280 | __end_data_ro_after_init = .; |
Heiko Carstens | 32fb2fc | 2016-06-07 12:20:51 +0200 | [diff] [blame] | 281 | #endif |
| 282 | |
| 283 | /* |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 284 | * Read only Data |
| 285 | */ |
| 286 | #define RO_DATA_SECTION(align) \ |
Sam Ravnborg | 4096b46 | 2007-05-29 21:29:00 +0200 | [diff] [blame] | 287 | . = ALIGN((align)); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \ |
Vivek Goyal | 6569580 | 2006-12-07 02:14:03 +0100 | [diff] [blame] | 289 | VMLINUX_SYMBOL(__start_rodata) = .; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | *(.rodata) *(.rodata.*) \ |
Heiko Carstens | 32fb2fc | 2016-06-07 12:20:51 +0200 | [diff] [blame] | 291 | RO_AFTER_INIT_DATA /* Read only after init */ \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | *(__vermagic) /* Kernel version magic */ \ |
Mathieu Desnoyers | 6549864 | 2011-01-26 17:26:22 -0500 | [diff] [blame] | 293 | . = ALIGN(8); \ |
| 294 | VMLINUX_SYMBOL(__start___tracepoints_ptrs) = .; \ |
| 295 | *(__tracepoints_ptrs) /* Tracepoints: pointer array */\ |
| 296 | VMLINUX_SYMBOL(__stop___tracepoints_ptrs) = .; \ |
Mathieu Desnoyers | 97e1c18 | 2008-07-18 12:16:16 -0400 | [diff] [blame] | 297 | *(__tracepoints_strings)/* Tracepoints: strings */ \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | } \ |
| 299 | \ |
| 300 | .rodata1 : AT(ADDR(.rodata1) - LOAD_OFFSET) { \ |
| 301 | *(.rodata1) \ |
| 302 | } \ |
| 303 | \ |
Jan Beulich | 6360b1f | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 304 | BUG_TABLE \ |
| 305 | \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | /* PCI quirks */ \ |
| 307 | .pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \ |
| 308 | VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 309 | KEEP(*(.pci_fixup_early)) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | VMLINUX_SYMBOL(__end_pci_fixups_early) = .; \ |
| 311 | VMLINUX_SYMBOL(__start_pci_fixups_header) = .; \ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 312 | KEEP(*(.pci_fixup_header)) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | VMLINUX_SYMBOL(__end_pci_fixups_header) = .; \ |
| 314 | VMLINUX_SYMBOL(__start_pci_fixups_final) = .; \ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 315 | KEEP(*(.pci_fixup_final)) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | VMLINUX_SYMBOL(__end_pci_fixups_final) = .; \ |
| 317 | VMLINUX_SYMBOL(__start_pci_fixups_enable) = .; \ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 318 | KEEP(*(.pci_fixup_enable)) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | VMLINUX_SYMBOL(__end_pci_fixups_enable) = .; \ |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 320 | VMLINUX_SYMBOL(__start_pci_fixups_resume) = .; \ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 321 | KEEP(*(.pci_fixup_resume)) \ |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 322 | VMLINUX_SYMBOL(__end_pci_fixups_resume) = .; \ |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 323 | VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .; \ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 324 | KEEP(*(.pci_fixup_resume_early)) \ |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 325 | VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .; \ |
| 326 | VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .; \ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 327 | KEEP(*(.pci_fixup_suspend)) \ |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 328 | VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .; \ |
Andreas Noever | 7d2a01b | 2014-06-03 22:04:09 +0200 | [diff] [blame] | 329 | VMLINUX_SYMBOL(__start_pci_fixups_suspend_late) = .; \ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 330 | KEEP(*(.pci_fixup_suspend_late)) \ |
Andreas Noever | 7d2a01b | 2014-06-03 22:04:09 +0200 | [diff] [blame] | 331 | VMLINUX_SYMBOL(__end_pci_fixups_suspend_late) = .; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | } \ |
| 333 | \ |
David Woodhouse | 5658c76 | 2008-05-23 13:52:42 +0100 | [diff] [blame] | 334 | /* Built-in firmware blobs */ \ |
| 335 | .builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) { \ |
| 336 | VMLINUX_SYMBOL(__start_builtin_fw) = .; \ |
| 337 | *(.builtin_fw) \ |
| 338 | VMLINUX_SYMBOL(__end_builtin_fw) = .; \ |
| 339 | } \ |
| 340 | \ |
Jan Beulich | 63687a5 | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 341 | TRACEDATA \ |
| 342 | \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | /* Kernel symbol table: Normal symbols */ \ |
| 344 | __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \ |
| 345 | VMLINUX_SYMBOL(__start___ksymtab) = .; \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 346 | KEEP(*(SORT(___ksymtab+*))) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | VMLINUX_SYMBOL(__stop___ksymtab) = .; \ |
| 348 | } \ |
| 349 | \ |
| 350 | /* Kernel symbol table: GPL-only symbols */ \ |
| 351 | __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \ |
| 352 | VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 353 | KEEP(*(SORT(___ksymtab_gpl+*))) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \ |
| 355 | } \ |
| 356 | \ |
Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 357 | /* Kernel symbol table: Normal unused symbols */ \ |
| 358 | __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \ |
| 359 | VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 360 | KEEP(*(SORT(___ksymtab_unused+*))) \ |
Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 361 | VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \ |
| 362 | } \ |
| 363 | \ |
| 364 | /* Kernel symbol table: GPL-only unused symbols */ \ |
| 365 | __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \ |
| 366 | VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 367 | KEEP(*(SORT(___ksymtab_unused_gpl+*))) \ |
Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 368 | VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \ |
| 369 | } \ |
| 370 | \ |
Greg Kroah-Hartman | 9f28bb7 | 2006-03-20 13:17:13 -0800 | [diff] [blame] | 371 | /* Kernel symbol table: GPL-future-only symbols */ \ |
| 372 | __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \ |
| 373 | VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 374 | KEEP(*(SORT(___ksymtab_gpl_future+*))) \ |
Greg Kroah-Hartman | 9f28bb7 | 2006-03-20 13:17:13 -0800 | [diff] [blame] | 375 | VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \ |
| 376 | } \ |
| 377 | \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | /* Kernel symbol table: Normal symbols */ \ |
| 379 | __kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \ |
| 380 | VMLINUX_SYMBOL(__start___kcrctab) = .; \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 381 | KEEP(*(SORT(___kcrctab+*))) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | VMLINUX_SYMBOL(__stop___kcrctab) = .; \ |
| 383 | } \ |
| 384 | \ |
| 385 | /* Kernel symbol table: GPL-only symbols */ \ |
| 386 | __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \ |
| 387 | VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 388 | KEEP(*(SORT(___kcrctab_gpl+*))) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \ |
| 390 | } \ |
| 391 | \ |
Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 392 | /* Kernel symbol table: Normal unused symbols */ \ |
| 393 | __kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \ |
| 394 | VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 395 | KEEP(*(SORT(___kcrctab_unused+*))) \ |
Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 396 | VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \ |
| 397 | } \ |
| 398 | \ |
| 399 | /* Kernel symbol table: GPL-only unused symbols */ \ |
| 400 | __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \ |
| 401 | VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 402 | KEEP(*(SORT(___kcrctab_unused_gpl+*))) \ |
Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 403 | VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \ |
| 404 | } \ |
| 405 | \ |
Greg Kroah-Hartman | 9f28bb7 | 2006-03-20 13:17:13 -0800 | [diff] [blame] | 406 | /* Kernel symbol table: GPL-future-only symbols */ \ |
| 407 | __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \ |
| 408 | VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 409 | KEEP(*(SORT(___kcrctab_gpl_future+*))) \ |
Greg Kroah-Hartman | 9f28bb7 | 2006-03-20 13:17:13 -0800 | [diff] [blame] | 410 | VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \ |
| 411 | } \ |
| 412 | \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | /* Kernel symbol table: strings */ \ |
| 414 | __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 415 | KEEP(*(__ksymtab_strings)) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | } \ |
| 417 | \ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 418 | /* __*init sections */ \ |
| 419 | __init_rodata : AT(ADDR(__init_rodata) - LOAD_OFFSET) { \ |
Sam Ravnborg | 312b148 | 2008-01-28 20:21:15 +0100 | [diff] [blame] | 420 | *(.ref.rodata) \ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 421 | MEM_KEEP(init.rodata) \ |
| 422 | MEM_KEEP(exit.rodata) \ |
| 423 | } \ |
| 424 | \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | /* Built-in module parameters. */ \ |
| 426 | __param : AT(ADDR(__param) - LOAD_OFFSET) { \ |
| 427 | VMLINUX_SYMBOL(__start___param) = .; \ |
Sami Tolvanen | 3a3a084 | 2018-03-14 15:39:27 -0700 | [diff] [blame] | 428 | KEEP(*(__param)) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | VMLINUX_SYMBOL(__stop___param) = .; \ |
Dmitry Torokhov | e94965e | 2010-12-15 14:00:19 -0800 | [diff] [blame] | 430 | } \ |
| 431 | \ |
| 432 | /* Built-in module versions. */ \ |
| 433 | __modver : AT(ADDR(__modver) - LOAD_OFFSET) { \ |
| 434 | VMLINUX_SYMBOL(__start___modver) = .; \ |
| 435 | *(__modver) \ |
| 436 | VMLINUX_SYMBOL(__stop___modver) = .; \ |
Arjan van de Ven | edeed30 | 2008-01-30 13:34:08 +0100 | [diff] [blame] | 437 | . = ALIGN((align)); \ |
Vivek Goyal | 6569580 | 2006-12-07 02:14:03 +0100 | [diff] [blame] | 438 | VMLINUX_SYMBOL(__end_rodata) = .; \ |
Marcelo Tosatti | 7583ddf | 2006-09-27 01:51:02 -0700 | [diff] [blame] | 439 | } \ |
Sam Ravnborg | 4096b46 | 2007-05-29 21:29:00 +0200 | [diff] [blame] | 440 | . = ALIGN((align)); |
| 441 | |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 442 | /* RODATA & RO_DATA provided for backward compatibility. |
Sam Ravnborg | 4096b46 | 2007-05-29 21:29:00 +0200 | [diff] [blame] | 443 | * All archs are supposed to use RO_DATA() */ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 444 | #define RODATA RO_DATA_SECTION(4096) |
| 445 | #define RO_DATA(align) RO_DATA_SECTION(align) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | |
| 447 | #define SECURITY_INIT \ |
Eric W. Biederman | 60bad7f | 2005-06-25 14:57:46 -0700 | [diff] [blame] | 448 | .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | VMLINUX_SYMBOL(__security_initcall_start) = .; \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 450 | KEEP(*(.security_initcall.init)) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | VMLINUX_SYMBOL(__security_initcall_end) = .; \ |
| 452 | } |
| 453 | |
Nicholas Piggin | 1fdee09 | 2017-07-26 22:46:27 +1000 | [diff] [blame] | 454 | /* |
| 455 | * .text section. Map to function alignment to avoid address changes |
Nicholas Piggin | 0f4c4af | 2016-09-14 12:24:03 +1000 | [diff] [blame] | 456 | * during second ld run in second ld pass when generating System.map |
Nicholas Piggin | 1fdee09 | 2017-07-26 22:46:27 +1000 | [diff] [blame] | 457 | * |
| 458 | * TEXT_MAIN here will match .text.fixup and .text.unlikely if dead |
| 459 | * code elimination is enabled, so these sections should be converted |
| 460 | * to use ".." first. |
| 461 | */ |
Sam Ravnborg | 7664709 | 2007-05-13 00:31:33 +0200 | [diff] [blame] | 462 | #define TEXT_TEXT \ |
| 463 | ALIGN_FUNCTION(); \ |
Nicholas Piggin | 1fdee09 | 2017-07-26 22:46:27 +1000 | [diff] [blame] | 464 | *(.text.hot TEXT_MAIN .text.fixup .text.unlikely) \ |
Sami Tolvanen | 7bd125e | 2017-06-16 12:52:57 -0700 | [diff] [blame] | 465 | *(.text..ftrace) \ |
Sami Tolvanen | 00a195e | 2017-05-11 15:03:36 -0700 | [diff] [blame] | 466 | *(TEXT_CFI_MAIN) \ |
Sam Ravnborg | 312b148 | 2008-01-28 20:21:15 +0100 | [diff] [blame] | 467 | *(.ref.text) \ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 468 | MEM_KEEP(init.text) \ |
Jan Beulich | fb5e2b3 | 2008-06-18 12:36:01 +0100 | [diff] [blame] | 469 | MEM_KEEP(exit.text) \ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 470 | |
Sam Ravnborg | 7664709 | 2007-05-13 00:31:33 +0200 | [diff] [blame] | 471 | |
Sam Ravnborg | 6d30e3a | 2005-07-14 20:15:44 +0000 | [diff] [blame] | 472 | /* sched.text is aling to function alignment to secure we have same |
| 473 | * address even at second ld pass when generating System.map */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | #define SCHED_TEXT \ |
Sam Ravnborg | 6d30e3a | 2005-07-14 20:15:44 +0000 | [diff] [blame] | 475 | ALIGN_FUNCTION(); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | VMLINUX_SYMBOL(__sched_text_start) = .; \ |
| 477 | *(.sched.text) \ |
| 478 | VMLINUX_SYMBOL(__sched_text_end) = .; |
| 479 | |
Sam Ravnborg | 6d30e3a | 2005-07-14 20:15:44 +0000 | [diff] [blame] | 480 | /* spinlock.text is aling to function alignment to secure we have same |
| 481 | * address even at second ld pass when generating System.map */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | #define LOCK_TEXT \ |
Sam Ravnborg | 6d30e3a | 2005-07-14 20:15:44 +0000 | [diff] [blame] | 483 | ALIGN_FUNCTION(); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | VMLINUX_SYMBOL(__lock_text_start) = .; \ |
| 485 | *(.spinlock.text) \ |
| 486 | VMLINUX_SYMBOL(__lock_text_end) = .; |
Prasanna S Panchamukhi | d0aaff9 | 2005-09-06 15:19:26 -0700 | [diff] [blame] | 487 | |
Chris Metcalf | 6727ad9 | 2016-10-07 17:02:55 -0700 | [diff] [blame] | 488 | #define CPUIDLE_TEXT \ |
| 489 | ALIGN_FUNCTION(); \ |
| 490 | VMLINUX_SYMBOL(__cpuidle_text_start) = .; \ |
| 491 | *(.cpuidle.text) \ |
| 492 | VMLINUX_SYMBOL(__cpuidle_text_end) = .; |
| 493 | |
Prasanna S Panchamukhi | d0aaff9 | 2005-09-06 15:19:26 -0700 | [diff] [blame] | 494 | #define KPROBES_TEXT \ |
| 495 | ALIGN_FUNCTION(); \ |
| 496 | VMLINUX_SYMBOL(__kprobes_text_start) = .; \ |
| 497 | *(.kprobes.text) \ |
| 498 | VMLINUX_SYMBOL(__kprobes_text_end) = .; |
Paolo 'Blaisorblade' Giarrusso | a7d0c21 | 2005-09-10 19:44:54 +0200 | [diff] [blame] | 499 | |
Jiri Olsa | ea71454 | 2011-03-07 19:10:39 +0100 | [diff] [blame] | 500 | #define ENTRY_TEXT \ |
| 501 | ALIGN_FUNCTION(); \ |
| 502 | VMLINUX_SYMBOL(__entry_text_start) = .; \ |
| 503 | *(.entry.text) \ |
| 504 | VMLINUX_SYMBOL(__entry_text_end) = .; |
| 505 | |
Frederic Weisbecker | a0343e8 | 2008-12-09 23:53:16 +0100 | [diff] [blame] | 506 | #define IRQENTRY_TEXT \ |
| 507 | ALIGN_FUNCTION(); \ |
| 508 | VMLINUX_SYMBOL(__irqentry_text_start) = .; \ |
| 509 | *(.irqentry.text) \ |
| 510 | VMLINUX_SYMBOL(__irqentry_text_end) = .; |
Frederic Weisbecker | a0343e8 | 2008-12-09 23:53:16 +0100 | [diff] [blame] | 511 | |
Alexander Potapenko | be7635e | 2016-03-25 14:22:05 -0700 | [diff] [blame] | 512 | #define SOFTIRQENTRY_TEXT \ |
| 513 | ALIGN_FUNCTION(); \ |
| 514 | VMLINUX_SYMBOL(__softirqentry_text_start) = .; \ |
| 515 | *(.softirqentry.text) \ |
| 516 | VMLINUX_SYMBOL(__softirqentry_text_end) = .; |
Alexander Potapenko | be7635e | 2016-03-25 14:22:05 -0700 | [diff] [blame] | 517 | |
Sam Ravnborg | 37c514e | 2008-02-19 21:00:18 +0100 | [diff] [blame] | 518 | /* Section used for early init (in .S files) */ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 519 | #define HEAD_TEXT KEEP(*(.head.text)) |
Sam Ravnborg | 37c514e | 2008-02-19 21:00:18 +0100 | [diff] [blame] | 520 | |
Sam Ravnborg | 7923f90 | 2009-06-14 22:10:41 +0200 | [diff] [blame] | 521 | #define HEAD_TEXT_SECTION \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 522 | .head.text : AT(ADDR(.head.text) - LOAD_OFFSET) { \ |
| 523 | HEAD_TEXT \ |
| 524 | } |
| 525 | |
| 526 | /* |
| 527 | * Exception table |
| 528 | */ |
| 529 | #define EXCEPTION_TABLE(align) \ |
| 530 | . = ALIGN(align); \ |
| 531 | __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { \ |
| 532 | VMLINUX_SYMBOL(__start___ex_table) = .; \ |
Sami Tolvanen | 3a3a084 | 2018-03-14 15:39:27 -0700 | [diff] [blame] | 533 | KEEP(*(__ex_table)) \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 534 | VMLINUX_SYMBOL(__stop___ex_table) = .; \ |
| 535 | } |
| 536 | |
| 537 | /* |
| 538 | * Init task |
| 539 | */ |
Tim Abbott | 39a449d | 2009-06-23 18:53:15 -0400 | [diff] [blame] | 540 | #define INIT_TASK_DATA_SECTION(align) \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 541 | . = ALIGN(align); \ |
Sam Ravnborg | da5e37e | 2010-07-13 11:39:42 +0200 | [diff] [blame] | 542 | .data..init_task : AT(ADDR(.data..init_task) - LOAD_OFFSET) { \ |
Tim Abbott | 39a449d | 2009-06-23 18:53:15 -0400 | [diff] [blame] | 543 | INIT_TASK_DATA(align) \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 544 | } |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 545 | |
Peter Oberparleiter | b99b87f | 2009-06-17 16:28:03 -0700 | [diff] [blame] | 546 | #ifdef CONFIG_CONSTRUCTORS |
Heiko Carstens | 2a2325e | 2009-06-30 11:41:13 -0700 | [diff] [blame] | 547 | #define KERNEL_CTORS() . = ALIGN(8); \ |
| 548 | VMLINUX_SYMBOL(__ctors_start) = .; \ |
Peter Oberparleiter | b99b87f | 2009-06-17 16:28:03 -0700 | [diff] [blame] | 549 | *(.ctors) \ |
Andrey Ryabinin | 9ddf825 | 2015-02-13 14:40:10 -0800 | [diff] [blame] | 550 | *(SORT(.init_array.*)) \ |
Frantisek Hrbata | eb3057d | 2013-10-14 18:08:46 +1030 | [diff] [blame] | 551 | *(.init_array) \ |
Peter Oberparleiter | b99b87f | 2009-06-17 16:28:03 -0700 | [diff] [blame] | 552 | VMLINUX_SYMBOL(__ctors_end) = .; |
| 553 | #else |
| 554 | #define KERNEL_CTORS() |
| 555 | #endif |
| 556 | |
Sam Ravnborg | 01ba2bd | 2008-01-20 14:15:03 +0100 | [diff] [blame] | 557 | /* init and exit section handling */ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 558 | #define INIT_DATA \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 559 | KEEP(*(SORT(___kentry+*))) \ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 560 | *(.init.data) \ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 561 | MEM_DISCARD(init.data) \ |
Peter Oberparleiter | b99b87f | 2009-06-17 16:28:03 -0700 | [diff] [blame] | 562 | KERNEL_CTORS() \ |
John Reiser | 4b3b4c5 | 2009-07-27 11:23:50 -0700 | [diff] [blame] | 563 | MCOUNT_REC() \ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 564 | *(.init.rodata .init.rodata.*) \ |
Steven Rostedt | e4a9ea5 | 2011-01-27 09:15:30 -0500 | [diff] [blame] | 565 | FTRACE_EVENTS() \ |
Steven Rostedt | 3d56e33 | 2011-02-02 17:06:09 -0500 | [diff] [blame] | 566 | TRACE_SYSCALLS() \ |
Masami Hiramatsu | 376e242 | 2014-04-17 17:17:05 +0900 | [diff] [blame] | 567 | KPROBE_BLACKLIST() \ |
Dirk Brandewie | aab9433 | 2010-12-22 11:57:26 -0800 | [diff] [blame] | 568 | MEM_DISCARD(init.rodata) \ |
Prashant Gaikwad | f2f6c25 | 2013-01-04 12:30:52 +0530 | [diff] [blame] | 569 | CLK_OF_TABLES() \ |
Marek Szyprowski | f618c47 | 2014-02-28 14:42:49 +0100 | [diff] [blame] | 570 | RESERVEDMEM_OF_TABLES() \ |
Stephen Warren | ae278a9 | 2012-11-19 16:41:20 -0700 | [diff] [blame] | 571 | CLKSRC_OF_TABLES() \ |
Will Deacon | 1cd076b | 2014-08-27 14:40:58 +0100 | [diff] [blame] | 572 | IOMMU_OF_TABLES() \ |
Stephen Boyd | 6c3ff8b | 2013-10-30 18:21:09 -0700 | [diff] [blame] | 573 | CPU_METHOD_OF_TABLES() \ |
Daniel Lezcano | 449e056 | 2015-02-02 16:32:45 +0100 | [diff] [blame] | 574 | CPUIDLE_METHOD_OF_TABLES() \ |
Thomas Petazzoni | f6e916b | 2012-11-20 23:00:52 +0100 | [diff] [blame] | 575 | KERNEL_DTB() \ |
Rob Herring | b0b6abd | 2014-03-27 08:06:16 -0500 | [diff] [blame] | 576 | IRQCHIP_OF_MATCH_TABLE() \ |
Marc Zyngier | 46e589a | 2015-09-28 15:49:13 +0100 | [diff] [blame] | 577 | ACPI_PROBE_TABLE(irqchip) \ |
Marc Zyngier | c625f76 | 2015-09-28 15:49:15 +0100 | [diff] [blame] | 578 | ACPI_PROBE_TABLE(clksrc) \ |
Peter Hurley | 2eaa790 | 2016-01-16 15:23:39 -0800 | [diff] [blame] | 579 | EARLYCON_TABLE() |
Sam Ravnborg | 01ba2bd | 2008-01-20 14:15:03 +0100 | [diff] [blame] | 580 | |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 581 | #define INIT_TEXT \ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 582 | *(.init.text .init.text.*) \ |
Dmitry Vyukov | e41f501 | 2016-07-14 12:07:29 -0700 | [diff] [blame] | 583 | *(.text.startup) \ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 584 | MEM_DISCARD(init.text) |
| 585 | |
| 586 | #define EXIT_DATA \ |
| 587 | *(.exit.data) \ |
Dmitry Vyukov | e41f501 | 2016-07-14 12:07:29 -0700 | [diff] [blame] | 588 | *(.fini_array) \ |
| 589 | *(.dtors) \ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 590 | MEM_DISCARD(exit.data) \ |
| 591 | MEM_DISCARD(exit.rodata) |
| 592 | |
| 593 | #define EXIT_TEXT \ |
| 594 | *(.exit.text) \ |
Dmitry Vyukov | e41f501 | 2016-07-14 12:07:29 -0700 | [diff] [blame] | 595 | *(.text.exit) \ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 596 | MEM_DISCARD(exit.text) |
Sam Ravnborg | 01ba2bd | 2008-01-20 14:15:03 +0100 | [diff] [blame] | 597 | |
Sam Ravnborg | 7923f90 | 2009-06-14 22:10:41 +0200 | [diff] [blame] | 598 | #define EXIT_CALL \ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 599 | KEEP(*(.exitcall.exit)) |
Sam Ravnborg | 7923f90 | 2009-06-14 22:10:41 +0200 | [diff] [blame] | 600 | |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 601 | /* |
| 602 | * bss (Block Started by Symbol) - uninitialized data |
| 603 | * zeroed during startup |
| 604 | */ |
Tim Abbott | 04e448d | 2009-07-12 18:23:33 -0400 | [diff] [blame] | 605 | #define SBSS(sbss_align) \ |
| 606 | . = ALIGN(sbss_align); \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 607 | .sbss : AT(ADDR(.sbss) - LOAD_OFFSET) { \ |
| 608 | *(.sbss) \ |
| 609 | *(.scommon) \ |
| 610 | } |
| 611 | |
David Daney | c87728c | 2012-08-14 11:08:00 -0700 | [diff] [blame] | 612 | /* |
| 613 | * Allow archectures to redefine BSS_FIRST_SECTIONS to add extra |
| 614 | * sections to the front of bss. |
| 615 | */ |
| 616 | #ifndef BSS_FIRST_SECTIONS |
| 617 | #define BSS_FIRST_SECTIONS |
| 618 | #endif |
| 619 | |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 620 | #define BSS(bss_align) \ |
| 621 | . = ALIGN(bss_align); \ |
| 622 | .bss : AT(ADDR(.bss) - LOAD_OFFSET) { \ |
David Daney | c87728c | 2012-08-14 11:08:00 -0700 | [diff] [blame] | 623 | BSS_FIRST_SECTIONS \ |
Tim Abbott | 7c74df0 | 2010-02-20 01:03:38 +0100 | [diff] [blame] | 624 | *(.bss..page_aligned) \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 625 | *(.dynbss) \ |
Nicholas Piggin | 1fdee09 | 2017-07-26 22:46:27 +1000 | [diff] [blame] | 626 | *(BSS_MAIN) \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 627 | *(COMMON) \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 628 | } |
| 629 | |
| 630 | /* |
| 631 | * DWARF debug sections. |
| 632 | * Symbols in the DWARF debugging sections are relative to |
| 633 | * the beginning of the section so we begin them at 0. |
| 634 | */ |
Paolo 'Blaisorblade' Giarrusso | a7d0c21 | 2005-09-10 19:44:54 +0200 | [diff] [blame] | 635 | #define DWARF_DEBUG \ |
| 636 | /* DWARF 1 */ \ |
| 637 | .debug 0 : { *(.debug) } \ |
| 638 | .line 0 : { *(.line) } \ |
| 639 | /* GNU DWARF 1 extensions */ \ |
| 640 | .debug_srcinfo 0 : { *(.debug_srcinfo) } \ |
| 641 | .debug_sfnames 0 : { *(.debug_sfnames) } \ |
| 642 | /* DWARF 1.1 and DWARF 2 */ \ |
| 643 | .debug_aranges 0 : { *(.debug_aranges) } \ |
| 644 | .debug_pubnames 0 : { *(.debug_pubnames) } \ |
| 645 | /* DWARF 2 */ \ |
| 646 | .debug_info 0 : { *(.debug_info \ |
| 647 | .gnu.linkonce.wi.*) } \ |
| 648 | .debug_abbrev 0 : { *(.debug_abbrev) } \ |
| 649 | .debug_line 0 : { *(.debug_line) } \ |
| 650 | .debug_frame 0 : { *(.debug_frame) } \ |
| 651 | .debug_str 0 : { *(.debug_str) } \ |
| 652 | .debug_loc 0 : { *(.debug_loc) } \ |
| 653 | .debug_macinfo 0 : { *(.debug_macinfo) } \ |
| 654 | /* SGI/MIPS DWARF 2 extensions */ \ |
| 655 | .debug_weaknames 0 : { *(.debug_weaknames) } \ |
| 656 | .debug_funcnames 0 : { *(.debug_funcnames) } \ |
| 657 | .debug_typenames 0 : { *(.debug_typenames) } \ |
| 658 | .debug_varnames 0 : { *(.debug_varnames) } \ |
| 659 | |
| 660 | /* Stabs debugging sections. */ |
| 661 | #define STABS_DEBUG \ |
| 662 | .stab 0 : { *(.stab) } \ |
| 663 | .stabstr 0 : { *(.stabstr) } \ |
| 664 | .stab.excl 0 : { *(.stab.excl) } \ |
| 665 | .stab.exclstr 0 : { *(.stab.exclstr) } \ |
| 666 | .stab.index 0 : { *(.stab.index) } \ |
| 667 | .stab.indexstr 0 : { *(.stab.indexstr) } \ |
| 668 | .comment 0 : { *(.comment) } |
Jeremy Fitzhardinge | 9c9b8b3 | 2006-09-25 23:32:26 -0700 | [diff] [blame] | 669 | |
Jan Beulich | 6360b1f | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 670 | #ifdef CONFIG_GENERIC_BUG |
Jeremy Fitzhardinge | 7664c5a | 2006-12-08 02:36:19 -0800 | [diff] [blame] | 671 | #define BUG_TABLE \ |
| 672 | . = ALIGN(8); \ |
| 673 | __bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) { \ |
Yoshinori Sato | c6de0026 | 2008-07-31 00:07:29 -0700 | [diff] [blame] | 674 | VMLINUX_SYMBOL(__start___bug_table) = .; \ |
Sami Tolvanen | 3a3a084 | 2018-03-14 15:39:27 -0700 | [diff] [blame] | 675 | KEEP(*(__bug_table)) \ |
Yoshinori Sato | c6de0026 | 2008-07-31 00:07:29 -0700 | [diff] [blame] | 676 | VMLINUX_SYMBOL(__stop___bug_table) = .; \ |
Jeremy Fitzhardinge | 7664c5a | 2006-12-08 02:36:19 -0800 | [diff] [blame] | 677 | } |
Jan Beulich | 6360b1f | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 678 | #else |
| 679 | #define BUG_TABLE |
| 680 | #endif |
Jeremy Fitzhardinge | 7664c5a | 2006-12-08 02:36:19 -0800 | [diff] [blame] | 681 | |
Jan Beulich | 63687a5 | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 682 | #ifdef CONFIG_PM_TRACE |
| 683 | #define TRACEDATA \ |
| 684 | . = ALIGN(4); \ |
| 685 | .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) { \ |
Yoshinori Sato | c6de0026 | 2008-07-31 00:07:29 -0700 | [diff] [blame] | 686 | VMLINUX_SYMBOL(__tracedata_start) = .; \ |
Jan Beulich | 63687a5 | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 687 | *(.tracedata) \ |
Yoshinori Sato | c6de0026 | 2008-07-31 00:07:29 -0700 | [diff] [blame] | 688 | VMLINUX_SYMBOL(__tracedata_end) = .; \ |
Jan Beulich | 63687a5 | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 689 | } |
| 690 | #else |
| 691 | #define TRACEDATA |
| 692 | #endif |
| 693 | |
Jeremy Fitzhardinge | 9c9b8b3 | 2006-09-25 23:32:26 -0700 | [diff] [blame] | 694 | #define NOTES \ |
Roland McGrath | cbe8712 | 2007-07-19 01:48:36 -0700 | [diff] [blame] | 695 | .notes : AT(ADDR(.notes) - LOAD_OFFSET) { \ |
| 696 | VMLINUX_SYMBOL(__start_notes) = .; \ |
| 697 | *(.note.*) \ |
| 698 | VMLINUX_SYMBOL(__stop_notes) = .; \ |
| 699 | } |
Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 700 | |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 701 | #define INIT_SETUP(initsetup_align) \ |
| 702 | . = ALIGN(initsetup_align); \ |
| 703 | VMLINUX_SYMBOL(__setup_start) = .; \ |
Sami Tolvanen | 4d10cc8 | 2018-02-13 13:59:47 -0800 | [diff] [blame] | 704 | KEEP(*(.init.setup)) \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 705 | VMLINUX_SYMBOL(__setup_end) = .; |
| 706 | |
Pawel Moll | 026cee0 | 2012-03-26 12:50:51 +1030 | [diff] [blame] | 707 | #define INIT_CALLS_LEVEL(level) \ |
| 708 | VMLINUX_SYMBOL(__initcall##level##_start) = .; \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 709 | KEEP(*(.initcall##level##.init)) \ |
| 710 | KEEP(*(.initcall##level##s.init)) \ |
Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 711 | |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 712 | #define INIT_CALLS \ |
| 713 | VMLINUX_SYMBOL(__initcall_start) = .; \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 714 | KEEP(*(.initcallearly.init)) \ |
Pawel Moll | 026cee0 | 2012-03-26 12:50:51 +1030 | [diff] [blame] | 715 | INIT_CALLS_LEVEL(0) \ |
| 716 | INIT_CALLS_LEVEL(1) \ |
| 717 | INIT_CALLS_LEVEL(2) \ |
| 718 | INIT_CALLS_LEVEL(3) \ |
| 719 | INIT_CALLS_LEVEL(4) \ |
| 720 | INIT_CALLS_LEVEL(5) \ |
| 721 | INIT_CALLS_LEVEL(rootfs) \ |
| 722 | INIT_CALLS_LEVEL(6) \ |
| 723 | INIT_CALLS_LEVEL(7) \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 724 | VMLINUX_SYMBOL(__initcall_end) = .; |
| 725 | |
| 726 | #define CON_INITCALL \ |
| 727 | VMLINUX_SYMBOL(__con_initcall_start) = .; \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 728 | KEEP(*(.con_initcall.init)) \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 729 | VMLINUX_SYMBOL(__con_initcall_end) = .; |
| 730 | |
| 731 | #define SECURITY_INITCALL \ |
| 732 | VMLINUX_SYMBOL(__security_initcall_start) = .; \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 733 | KEEP(*(.security_initcall.init)) \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 734 | VMLINUX_SYMBOL(__security_initcall_end) = .; |
| 735 | |
| 736 | #ifdef CONFIG_BLK_DEV_INITRD |
| 737 | #define INIT_RAM_FS \ |
Mike Frysinger | d882626 | 2010-10-26 14:22:30 -0700 | [diff] [blame] | 738 | . = ALIGN(4); \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 739 | VMLINUX_SYMBOL(__initramfs_start) = .; \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 740 | KEEP(*(.init.ramfs)) \ |
Hendrik Brueckner | ffe8018 | 2010-09-17 15:24:11 -0700 | [diff] [blame] | 741 | . = ALIGN(8); \ |
Nicholas Piggin | b67067f | 2016-08-24 22:29:20 +1000 | [diff] [blame] | 742 | KEEP(*(.init.ramfs.info)) |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 743 | #else |
David Howells | eadfe21 | 2009-06-22 15:32:31 +0100 | [diff] [blame] | 744 | #define INIT_RAM_FS |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 745 | #endif |
| 746 | |
Tejun Heo | 023bf6f | 2009-07-09 11:27:40 +0900 | [diff] [blame] | 747 | /* |
| 748 | * Default discarded sections. |
| 749 | * |
| 750 | * Some archs want to discard exit text/data at runtime rather than |
| 751 | * link time due to cross-section references such as alt instructions, |
| 752 | * bug table, eh_frame, etc. DISCARDS must be the last of output |
| 753 | * section definitions so that such archs put those in earlier section |
| 754 | * definitions. |
| 755 | */ |
Tejun Heo | 405d967 | 2009-06-24 15:13:38 +0900 | [diff] [blame] | 756 | #define DISCARDS \ |
| 757 | /DISCARD/ : { \ |
| 758 | EXIT_TEXT \ |
| 759 | EXIT_DATA \ |
Tejun Heo | 023bf6f | 2009-07-09 11:27:40 +0900 | [diff] [blame] | 760 | EXIT_CALL \ |
Tejun Heo | 405d967 | 2009-06-24 15:13:38 +0900 | [diff] [blame] | 761 | *(.discard) \ |
Jeremy Fitzhardinge | c7f52cd | 2010-07-22 22:58:01 -0700 | [diff] [blame] | 762 | *(.discard.*) \ |
Tejun Heo | 405d967 | 2009-06-24 15:13:38 +0900 | [diff] [blame] | 763 | } |
| 764 | |
Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 765 | /** |
Mike Frysinger | 6ea0c34 | 2011-04-04 01:41:32 +0200 | [diff] [blame] | 766 | * PERCPU_INPUT - the percpu input sections |
| 767 | * @cacheline: cacheline size |
| 768 | * |
| 769 | * The core percpu section names and core symbols which do not rely |
| 770 | * directly upon load addresses. |
| 771 | * |
| 772 | * @cacheline is used to align subsections to avoid false cacheline |
| 773 | * sharing between subsections for different purposes. |
| 774 | */ |
| 775 | #define PERCPU_INPUT(cacheline) \ |
| 776 | VMLINUX_SYMBOL(__per_cpu_start) = .; \ |
Hugh Dickins | 61b7a40 | 2017-08-21 20:11:43 -0700 | [diff] [blame] | 777 | VMLINUX_SYMBOL(__per_cpu_user_mapped_start) = .; \ |
Mike Frysinger | 6ea0c34 | 2011-04-04 01:41:32 +0200 | [diff] [blame] | 778 | *(.data..percpu..first) \ |
Hugh Dickins | 61b7a40 | 2017-08-21 20:11:43 -0700 | [diff] [blame] | 779 | . = ALIGN(cacheline); \ |
| 780 | *(.data..percpu..user_mapped) \ |
| 781 | *(.data..percpu..user_mapped..shared_aligned) \ |
| 782 | . = ALIGN(PAGE_SIZE); \ |
| 783 | *(.data..percpu..user_mapped..page_aligned) \ |
| 784 | VMLINUX_SYMBOL(__per_cpu_user_mapped_end) = .; \ |
Mike Frysinger | 6ea0c34 | 2011-04-04 01:41:32 +0200 | [diff] [blame] | 785 | . = ALIGN(PAGE_SIZE); \ |
| 786 | *(.data..percpu..page_aligned) \ |
| 787 | . = ALIGN(cacheline); \ |
Zhengyu He | 330d282 | 2014-07-01 12:11:47 -0700 | [diff] [blame] | 788 | *(.data..percpu..read_mostly) \ |
Mike Frysinger | 6ea0c34 | 2011-04-04 01:41:32 +0200 | [diff] [blame] | 789 | . = ALIGN(cacheline); \ |
| 790 | *(.data..percpu) \ |
| 791 | *(.data..percpu..shared_aligned) \ |
| 792 | VMLINUX_SYMBOL(__per_cpu_end) = .; |
| 793 | |
| 794 | /** |
Tejun Heo | 6b7c38d | 2009-01-19 12:21:28 +0900 | [diff] [blame] | 795 | * PERCPU_VADDR - define output section for percpu area |
Tejun Heo | 19df0c2 | 2011-01-25 14:26:50 +0100 | [diff] [blame] | 796 | * @cacheline: cacheline size |
Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 797 | * @vaddr: explicit base address (optional) |
| 798 | * @phdr: destination PHDR (optional) |
| 799 | * |
Tejun Heo | 19df0c2 | 2011-01-25 14:26:50 +0100 | [diff] [blame] | 800 | * Macro which expands to output section for percpu area. |
| 801 | * |
| 802 | * @cacheline is used to align subsections to avoid false cacheline |
| 803 | * sharing between subsections for different purposes. |
| 804 | * |
| 805 | * If @vaddr is not blank, it specifies explicit base address and all |
| 806 | * percpu symbols will be offset from the given address. If blank, |
| 807 | * @vaddr always equals @laddr + LOAD_OFFSET. |
Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 808 | * |
| 809 | * @phdr defines the output PHDR to use if not blank. Be warned that |
| 810 | * output PHDR is sticky. If @phdr is specified, the next output |
| 811 | * section in the linker script will go there too. @phdr should have |
| 812 | * a leading colon. |
| 813 | * |
Tejun Heo | 3ac6cff | 2009-01-30 16:32:22 +0900 | [diff] [blame] | 814 | * Note that this macros defines __per_cpu_load as an absolute symbol. |
| 815 | * If there is no need to put the percpu section at a predetermined |
Tejun Heo | 0415b00d1 | 2011-03-24 18:50:09 +0100 | [diff] [blame] | 816 | * address, use PERCPU_SECTION. |
Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 817 | */ |
Tejun Heo | 19df0c2 | 2011-01-25 14:26:50 +0100 | [diff] [blame] | 818 | #define PERCPU_VADDR(cacheline, vaddr, phdr) \ |
Ingo Molnar | dba3d36 | 2009-01-29 17:10:12 +0100 | [diff] [blame] | 819 | VMLINUX_SYMBOL(__per_cpu_load) = .; \ |
Denys Vlasenko | 3d9a854 | 2010-02-20 01:03:43 +0100 | [diff] [blame] | 820 | .data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \ |
Tejun Heo | 6b7c38d | 2009-01-19 12:21:28 +0900 | [diff] [blame] | 821 | - LOAD_OFFSET) { \ |
Mike Frysinger | 6ea0c34 | 2011-04-04 01:41:32 +0200 | [diff] [blame] | 822 | PERCPU_INPUT(cacheline) \ |
Tejun Heo | 6b7c38d | 2009-01-19 12:21:28 +0900 | [diff] [blame] | 823 | } phdr \ |
Denys Vlasenko | 3d9a854 | 2010-02-20 01:03:43 +0100 | [diff] [blame] | 824 | . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu); |
Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 825 | |
| 826 | /** |
Tejun Heo | 0415b00d1 | 2011-03-24 18:50:09 +0100 | [diff] [blame] | 827 | * PERCPU_SECTION - define output section for percpu area, simple version |
Tejun Heo | 19df0c2 | 2011-01-25 14:26:50 +0100 | [diff] [blame] | 828 | * @cacheline: cacheline size |
Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 829 | * |
Tejun Heo | 0415b00d1 | 2011-03-24 18:50:09 +0100 | [diff] [blame] | 830 | * Align to PAGE_SIZE and outputs output section for percpu area. This |
| 831 | * macro doesn't manipulate @vaddr or @phdr and __per_cpu_load and |
Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 832 | * __per_cpu_start will be identical. |
Tejun Heo | 3ac6cff | 2009-01-30 16:32:22 +0900 | [diff] [blame] | 833 | * |
Tejun Heo | 0415b00d1 | 2011-03-24 18:50:09 +0100 | [diff] [blame] | 834 | * This macro is equivalent to ALIGN(PAGE_SIZE); PERCPU_VADDR(@cacheline,,) |
Tejun Heo | 19df0c2 | 2011-01-25 14:26:50 +0100 | [diff] [blame] | 835 | * except that __per_cpu_load is defined as a relative symbol against |
| 836 | * .data..percpu which is required for relocatable x86_32 configuration. |
Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 837 | */ |
Tejun Heo | 0415b00d1 | 2011-03-24 18:50:09 +0100 | [diff] [blame] | 838 | #define PERCPU_SECTION(cacheline) \ |
| 839 | . = ALIGN(PAGE_SIZE); \ |
Denys Vlasenko | 3d9a854 | 2010-02-20 01:03:43 +0100 | [diff] [blame] | 840 | .data..percpu : AT(ADDR(.data..percpu) - LOAD_OFFSET) { \ |
Tejun Heo | 3ac6cff | 2009-01-30 16:32:22 +0900 | [diff] [blame] | 841 | VMLINUX_SYMBOL(__per_cpu_load) = .; \ |
Mike Frysinger | 6ea0c34 | 2011-04-04 01:41:32 +0200 | [diff] [blame] | 842 | PERCPU_INPUT(cacheline) \ |
Tejun Heo | 3ac6cff | 2009-01-30 16:32:22 +0900 | [diff] [blame] | 843 | } |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 844 | |
| 845 | |
| 846 | /* |
| 847 | * Definition of the high level *_SECTION macros |
| 848 | * They will fit only a subset of the architectures |
| 849 | */ |
| 850 | |
| 851 | |
| 852 | /* |
| 853 | * Writeable data. |
| 854 | * All sections are combined in a single .data section. |
| 855 | * The sections following CONSTRUCTORS are arranged so their |
| 856 | * typical alignment matches. |
| 857 | * A cacheline is typical/always less than a PAGE_SIZE so |
| 858 | * the sections that has this restriction (or similar) |
| 859 | * is located before the ones requiring PAGE_SIZE alignment. |
| 860 | * NOSAVE_DATA starts and ends with a PAGE_SIZE alignment which |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 861 | * matches the requirement of PAGE_ALIGNED_DATA. |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 862 | * |
Sam Ravnborg | 7923f90 | 2009-06-14 22:10:41 +0200 | [diff] [blame] | 863 | * use 0 as page_align if page_aligned data is not used */ |
Paul Mundt | 73f1d93 | 2009-06-24 01:04:36 +0900 | [diff] [blame] | 864 | #define RW_DATA_SECTION(cacheline, pagealigned, inittask) \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 865 | . = ALIGN(PAGE_SIZE); \ |
| 866 | .data : AT(ADDR(.data) - LOAD_OFFSET) { \ |
Tim Abbott | 39a449d | 2009-06-23 18:53:15 -0400 | [diff] [blame] | 867 | INIT_TASK_DATA(inittask) \ |
Tim Abbott | 1b20862 | 2009-09-24 10:36:16 -0400 | [diff] [blame] | 868 | NOSAVE_DATA \ |
| 869 | PAGE_ALIGNED_DATA(pagealigned) \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 870 | CACHELINE_ALIGNED_DATA(cacheline) \ |
| 871 | READ_MOSTLY_DATA(cacheline) \ |
| 872 | DATA_DATA \ |
| 873 | CONSTRUCTORS \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 874 | } |
| 875 | |
| 876 | #define INIT_TEXT_SECTION(inittext_align) \ |
| 877 | . = ALIGN(inittext_align); \ |
| 878 | .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) { \ |
| 879 | VMLINUX_SYMBOL(_sinittext) = .; \ |
| 880 | INIT_TEXT \ |
| 881 | VMLINUX_SYMBOL(_einittext) = .; \ |
| 882 | } |
| 883 | |
| 884 | #define INIT_DATA_SECTION(initsetup_align) \ |
| 885 | .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { \ |
| 886 | INIT_DATA \ |
| 887 | INIT_SETUP(initsetup_align) \ |
| 888 | INIT_CALLS \ |
| 889 | CON_INITCALL \ |
| 890 | SECURITY_INITCALL \ |
| 891 | INIT_RAM_FS \ |
| 892 | } |
| 893 | |
Tim Abbott | 04e448d | 2009-07-12 18:23:33 -0400 | [diff] [blame] | 894 | #define BSS_SECTION(sbss_align, bss_align, stop_align) \ |
| 895 | . = ALIGN(sbss_align); \ |
| 896 | VMLINUX_SYMBOL(__bss_start) = .; \ |
| 897 | SBSS(sbss_align) \ |
Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 898 | BSS(bss_align) \ |
Tim Abbott | 04e448d | 2009-07-12 18:23:33 -0400 | [diff] [blame] | 899 | . = ALIGN(stop_align); \ |
| 900 | VMLINUX_SYMBOL(__bss_stop) = .; |