| #include <linux/section-names.h> |
| |
| #ifndef LOAD_OFFSET |
| #define LOAD_OFFSET 0 |
| #endif |
| |
| #ifndef VMLINUX_SYMBOL |
| #define VMLINUX_SYMBOL(_sym_) _sym_ |
| #endif |
| |
| /* Align . to a 8 byte boundary equals to maximum function alignment. */ |
| #define ALIGN_FUNCTION() . = ALIGN(8) |
| |
| /* The actual configuration determine if the init/exit sections |
| * are handled as text/data or they can be discarded (which |
| * often happens at runtime) |
| */ |
| #ifdef CONFIG_HOTPLUG |
| #define DEV_KEEP(sec) *(.dev##sec) |
| #define DEV_DISCARD(sec) |
| #else |
| #define DEV_KEEP(sec) |
| #define DEV_DISCARD(sec) *(.dev##sec) |
| #endif |
| |
| #ifdef CONFIG_HOTPLUG_CPU |
| #define CPU_KEEP(sec) *(.cpu##sec) |
| #define CPU_DISCARD(sec) |
| #else |
| #define CPU_KEEP(sec) |
| #define CPU_DISCARD(sec) *(.cpu##sec) |
| #endif |
| |
| #if defined(CONFIG_MEMORY_HOTPLUG) |
| #define MEM_KEEP(sec) *(.mem##sec) |
| #define MEM_DISCARD(sec) |
| #else |
| #define MEM_KEEP(sec) |
| #define MEM_DISCARD(sec) *(.mem##sec) |
| #endif |
| |
| #ifdef CONFIG_FTRACE_MCOUNT_RECORD |
| #define MCOUNT_REC() VMLINUX_SYMBOL(__start_mcount_loc) = .; \ |
| *(__mcount_loc) \ |
| VMLINUX_SYMBOL(__stop_mcount_loc) = .; |
| #else |
| #define MCOUNT_REC() |
| #endif |
| |
| #ifdef CONFIG_TRACE_BRANCH_PROFILING |
| #define LIKELY_PROFILE() VMLINUX_SYMBOL(__start_annotated_branch_profile) = .; \ |
| *(_ftrace_annotated_branch) \ |
| VMLINUX_SYMBOL(__stop_annotated_branch_profile) = .; |
| #else |
| #define LIKELY_PROFILE() |
| #endif |
| |
| #ifdef CONFIG_PROFILE_ALL_BRANCHES |
| #define BRANCH_PROFILE() VMLINUX_SYMBOL(__start_branch_profile) = .; \ |
| *(_ftrace_branch) \ |
| VMLINUX_SYMBOL(__stop_branch_profile) = .; |
| #else |
| #define BRANCH_PROFILE() |
| #endif |
| |
| #ifdef CONFIG_EVENT_TRACER |
| #define FTRACE_EVENTS() VMLINUX_SYMBOL(__start_ftrace_events) = .; \ |
| *(_ftrace_events) \ |
| VMLINUX_SYMBOL(__stop_ftrace_events) = .; |
| #else |
| #define FTRACE_EVENTS() |
| #endif |
| |
| #ifdef CONFIG_TRACING |
| #define TRACE_PRINTKS() VMLINUX_SYMBOL(__start___trace_bprintk_fmt) = .; \ |
| *(__trace_printk_fmt) /* Trace_printk fmt' pointer */ \ |
| VMLINUX_SYMBOL(__stop___trace_bprintk_fmt) = .; |
| #else |
| #define TRACE_PRINTKS() |
| #endif |
| |
| #ifdef CONFIG_FTRACE_SYSCALLS |
| #define TRACE_SYSCALLS() VMLINUX_SYMBOL(__start_syscalls_metadata) = .; \ |
| *(__syscalls_metadata) \ |
| VMLINUX_SYMBOL(__stop_syscalls_metadata) = .; |
| #else |
| #define TRACE_SYSCALLS() |
| #endif |
| |
| /* .data section */ |
| #define DATA_DATA \ |
| *(.data) \ |
| *(.ref.data) \ |
| DEV_KEEP(init.data) \ |
| DEV_KEEP(exit.data) \ |
| CPU_KEEP(init.data) \ |
| CPU_KEEP(exit.data) \ |
| MEM_KEEP(init.data) \ |
| MEM_KEEP(exit.data) \ |
| . = ALIGN(8); \ |
| VMLINUX_SYMBOL(__start___markers) = .; \ |
| *(__markers) \ |
| VMLINUX_SYMBOL(__stop___markers) = .; \ |
| . = ALIGN(32); \ |
| VMLINUX_SYMBOL(__start___tracepoints) = .; \ |
| *(__tracepoints) \ |
| VMLINUX_SYMBOL(__stop___tracepoints) = .; \ |
| /* implement dynamic printk debug */ \ |
| . = ALIGN(8); \ |
| VMLINUX_SYMBOL(__start___verbose) = .; \ |
| *(__verbose) \ |
| VMLINUX_SYMBOL(__stop___verbose) = .; \ |
| LIKELY_PROFILE() \ |
| BRANCH_PROFILE() \ |
| TRACE_PRINTKS() \ |
| FTRACE_EVENTS() \ |
| TRACE_SYSCALLS() |
| |
| #define RO_DATA(align) \ |
| . = ALIGN((align)); \ |
| .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start_rodata) = .; \ |
| *(.rodata) *(.rodata.*) \ |
| *(__vermagic) /* Kernel version magic */ \ |
| *(__markers_strings) /* Markers: strings */ \ |
| *(__tracepoints_strings)/* Tracepoints: strings */ \ |
| } \ |
| \ |
| .rodata1 : AT(ADDR(.rodata1) - LOAD_OFFSET) { \ |
| *(.rodata1) \ |
| } \ |
| \ |
| BUG_TABLE \ |
| \ |
| /* PCI quirks */ \ |
| .pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \ |
| *(.pci_fixup_early) \ |
| VMLINUX_SYMBOL(__end_pci_fixups_early) = .; \ |
| VMLINUX_SYMBOL(__start_pci_fixups_header) = .; \ |
| *(.pci_fixup_header) \ |
| VMLINUX_SYMBOL(__end_pci_fixups_header) = .; \ |
| VMLINUX_SYMBOL(__start_pci_fixups_final) = .; \ |
| *(.pci_fixup_final) \ |
| VMLINUX_SYMBOL(__end_pci_fixups_final) = .; \ |
| VMLINUX_SYMBOL(__start_pci_fixups_enable) = .; \ |
| *(.pci_fixup_enable) \ |
| VMLINUX_SYMBOL(__end_pci_fixups_enable) = .; \ |
| VMLINUX_SYMBOL(__start_pci_fixups_resume) = .; \ |
| *(.pci_fixup_resume) \ |
| VMLINUX_SYMBOL(__end_pci_fixups_resume) = .; \ |
| VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .; \ |
| *(.pci_fixup_resume_early) \ |
| VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .; \ |
| VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .; \ |
| *(.pci_fixup_suspend) \ |
| VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .; \ |
| } \ |
| \ |
| /* Built-in firmware blobs */ \ |
| .builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start_builtin_fw) = .; \ |
| *(.builtin_fw) \ |
| VMLINUX_SYMBOL(__end_builtin_fw) = .; \ |
| } \ |
| \ |
| /* RapidIO route ops */ \ |
| .rio_route : AT(ADDR(.rio_route) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start_rio_route_ops) = .; \ |
| *(.rio_route_ops) \ |
| VMLINUX_SYMBOL(__end_rio_route_ops) = .; \ |
| } \ |
| \ |
| TRACEDATA \ |
| \ |
| /* Kernel symbol table: Normal symbols */ \ |
| __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start___ksymtab) = .; \ |
| *(__ksymtab) \ |
| VMLINUX_SYMBOL(__stop___ksymtab) = .; \ |
| } \ |
| \ |
| /* Kernel symbol table: GPL-only symbols */ \ |
| __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \ |
| *(__ksymtab_gpl) \ |
| VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \ |
| } \ |
| \ |
| /* Kernel symbol table: Normal unused symbols */ \ |
| __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \ |
| *(__ksymtab_unused) \ |
| VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \ |
| } \ |
| \ |
| /* Kernel symbol table: GPL-only unused symbols */ \ |
| __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \ |
| *(__ksymtab_unused_gpl) \ |
| VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \ |
| } \ |
| \ |
| /* Kernel symbol table: GPL-future-only symbols */ \ |
| __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \ |
| *(__ksymtab_gpl_future) \ |
| VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \ |
| } \ |
| \ |
| /* Kernel symbol table: Normal symbols */ \ |
| __kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start___kcrctab) = .; \ |
| *(__kcrctab) \ |
| VMLINUX_SYMBOL(__stop___kcrctab) = .; \ |
| } \ |
| \ |
| /* Kernel symbol table: GPL-only symbols */ \ |
| __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \ |
| *(__kcrctab_gpl) \ |
| VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \ |
| } \ |
| \ |
| /* Kernel symbol table: Normal unused symbols */ \ |
| __kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \ |
| *(__kcrctab_unused) \ |
| VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \ |
| } \ |
| \ |
| /* Kernel symbol table: GPL-only unused symbols */ \ |
| __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \ |
| *(__kcrctab_unused_gpl) \ |
| VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \ |
| } \ |
| \ |
| /* Kernel symbol table: GPL-future-only symbols */ \ |
| __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \ |
| *(__kcrctab_gpl_future) \ |
| VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \ |
| } \ |
| \ |
| /* Kernel symbol table: strings */ \ |
| __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ |
| *(__ksymtab_strings) \ |
| } \ |
| \ |
| /* __*init sections */ \ |
| __init_rodata : AT(ADDR(__init_rodata) - LOAD_OFFSET) { \ |
| *(.ref.rodata) \ |
| MCOUNT_REC() \ |
| DEV_KEEP(init.rodata) \ |
| DEV_KEEP(exit.rodata) \ |
| CPU_KEEP(init.rodata) \ |
| CPU_KEEP(exit.rodata) \ |
| MEM_KEEP(init.rodata) \ |
| MEM_KEEP(exit.rodata) \ |
| } \ |
| \ |
| /* Built-in module parameters. */ \ |
| __param : AT(ADDR(__param) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start___param) = .; \ |
| *(__param) \ |
| VMLINUX_SYMBOL(__stop___param) = .; \ |
| . = ALIGN((align)); \ |
| VMLINUX_SYMBOL(__end_rodata) = .; \ |
| } \ |
| . = ALIGN((align)); |
| |
| /* RODATA provided for backward compatibility. |
| * All archs are supposed to use RO_DATA() */ |
| #define RODATA RO_DATA(4096) |
| |
| #define SECURITY_INIT \ |
| .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__security_initcall_start) = .; \ |
| *(.security_initcall.init) \ |
| VMLINUX_SYMBOL(__security_initcall_end) = .; \ |
| } |
| |
| /* .text section. Map to function alignment to avoid address changes |
| * during second ld run in second ld pass when generating System.map */ |
| #define TEXT_TEXT \ |
| ALIGN_FUNCTION(); \ |
| *(.text.hot) \ |
| *(.text) \ |
| *(.ref.text) \ |
| DEV_KEEP(init.text) \ |
| DEV_KEEP(exit.text) \ |
| CPU_KEEP(init.text) \ |
| CPU_KEEP(exit.text) \ |
| MEM_KEEP(init.text) \ |
| MEM_KEEP(exit.text) \ |
| *(.text.unlikely) |
| |
| |
| /* sched.text is aling to function alignment to secure we have same |
| * address even at second ld pass when generating System.map */ |
| #define SCHED_TEXT \ |
| ALIGN_FUNCTION(); \ |
| VMLINUX_SYMBOL(__sched_text_start) = .; \ |
| *(.sched.text) \ |
| VMLINUX_SYMBOL(__sched_text_end) = .; |
| |
| /* spinlock.text is aling to function alignment to secure we have same |
| * address even at second ld pass when generating System.map */ |
| #define LOCK_TEXT \ |
| ALIGN_FUNCTION(); \ |
| VMLINUX_SYMBOL(__lock_text_start) = .; \ |
| *(.spinlock.text) \ |
| VMLINUX_SYMBOL(__lock_text_end) = .; |
| |
| #define KPROBES_TEXT \ |
| ALIGN_FUNCTION(); \ |
| VMLINUX_SYMBOL(__kprobes_text_start) = .; \ |
| *(.kprobes.text) \ |
| VMLINUX_SYMBOL(__kprobes_text_end) = .; |
| |
| #ifdef CONFIG_FUNCTION_GRAPH_TRACER |
| #define IRQENTRY_TEXT \ |
| ALIGN_FUNCTION(); \ |
| VMLINUX_SYMBOL(__irqentry_text_start) = .; \ |
| *(.irqentry.text) \ |
| VMLINUX_SYMBOL(__irqentry_text_end) = .; |
| #else |
| #define IRQENTRY_TEXT |
| #endif |
| |
| /* Section used for early init (in .S files) */ |
| #define HEAD_TEXT *(HEAD_TEXT_SECTION) |
| |
| /* init and exit section handling */ |
| #define INIT_DATA \ |
| *(.init.data) \ |
| DEV_DISCARD(init.data) \ |
| DEV_DISCARD(init.rodata) \ |
| CPU_DISCARD(init.data) \ |
| CPU_DISCARD(init.rodata) \ |
| MEM_DISCARD(init.data) \ |
| MEM_DISCARD(init.rodata) |
| |
| #define INIT_TEXT \ |
| *(.init.text) \ |
| DEV_DISCARD(init.text) \ |
| CPU_DISCARD(init.text) \ |
| MEM_DISCARD(init.text) |
| |
| #define EXIT_DATA \ |
| *(.exit.data) \ |
| DEV_DISCARD(exit.data) \ |
| DEV_DISCARD(exit.rodata) \ |
| CPU_DISCARD(exit.data) \ |
| CPU_DISCARD(exit.rodata) \ |
| MEM_DISCARD(exit.data) \ |
| MEM_DISCARD(exit.rodata) |
| |
| #define EXIT_TEXT \ |
| *(.exit.text) \ |
| DEV_DISCARD(exit.text) \ |
| CPU_DISCARD(exit.text) \ |
| MEM_DISCARD(exit.text) |
| |
| /* DWARF debug sections. |
| Symbols in the DWARF debugging sections are relative to |
| the beginning of the section so we begin them at 0. */ |
| #define DWARF_DEBUG \ |
| /* DWARF 1 */ \ |
| .debug 0 : { *(.debug) } \ |
| .line 0 : { *(.line) } \ |
| /* GNU DWARF 1 extensions */ \ |
| .debug_srcinfo 0 : { *(.debug_srcinfo) } \ |
| .debug_sfnames 0 : { *(.debug_sfnames) } \ |
| /* DWARF 1.1 and DWARF 2 */ \ |
| .debug_aranges 0 : { *(.debug_aranges) } \ |
| .debug_pubnames 0 : { *(.debug_pubnames) } \ |
| /* DWARF 2 */ \ |
| .debug_info 0 : { *(.debug_info \ |
| .gnu.linkonce.wi.*) } \ |
| .debug_abbrev 0 : { *(.debug_abbrev) } \ |
| .debug_line 0 : { *(.debug_line) } \ |
| .debug_frame 0 : { *(.debug_frame) } \ |
| .debug_str 0 : { *(.debug_str) } \ |
| .debug_loc 0 : { *(.debug_loc) } \ |
| .debug_macinfo 0 : { *(.debug_macinfo) } \ |
| /* SGI/MIPS DWARF 2 extensions */ \ |
| .debug_weaknames 0 : { *(.debug_weaknames) } \ |
| .debug_funcnames 0 : { *(.debug_funcnames) } \ |
| .debug_typenames 0 : { *(.debug_typenames) } \ |
| .debug_varnames 0 : { *(.debug_varnames) } \ |
| |
| /* Stabs debugging sections. */ |
| #define STABS_DEBUG \ |
| .stab 0 : { *(.stab) } \ |
| .stabstr 0 : { *(.stabstr) } \ |
| .stab.excl 0 : { *(.stab.excl) } \ |
| .stab.exclstr 0 : { *(.stab.exclstr) } \ |
| .stab.index 0 : { *(.stab.index) } \ |
| .stab.indexstr 0 : { *(.stab.indexstr) } \ |
| .comment 0 : { *(.comment) } |
| |
| #ifdef CONFIG_GENERIC_BUG |
| #define BUG_TABLE \ |
| . = ALIGN(8); \ |
| __bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start___bug_table) = .; \ |
| *(__bug_table) \ |
| VMLINUX_SYMBOL(__stop___bug_table) = .; \ |
| } |
| #else |
| #define BUG_TABLE |
| #endif |
| |
| #ifdef CONFIG_PM_TRACE |
| #define TRACEDATA \ |
| . = ALIGN(4); \ |
| .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__tracedata_start) = .; \ |
| *(.tracedata) \ |
| VMLINUX_SYMBOL(__tracedata_end) = .; \ |
| } |
| #else |
| #define TRACEDATA |
| #endif |
| |
| #define NOTES \ |
| .notes : AT(ADDR(.notes) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__start_notes) = .; \ |
| *(.note.*) \ |
| VMLINUX_SYMBOL(__stop_notes) = .; \ |
| } |
| |
| #define INITCALLS \ |
| *(.initcallearly.init) \ |
| VMLINUX_SYMBOL(__early_initcall_end) = .; \ |
| *(.initcall0.init) \ |
| *(.initcall0s.init) \ |
| *(.initcall1.init) \ |
| *(.initcall1s.init) \ |
| *(.initcall2.init) \ |
| *(.initcall2s.init) \ |
| *(.initcall3.init) \ |
| *(.initcall3s.init) \ |
| *(.initcall4.init) \ |
| *(.initcall4s.init) \ |
| *(.initcall5.init) \ |
| *(.initcall5s.init) \ |
| *(.initcallrootfs.init) \ |
| *(.initcall6.init) \ |
| *(.initcall6s.init) \ |
| *(.initcall7.init) \ |
| *(.initcall7s.init) |
| |
| /** |
| * PERCPU_VADDR - define output section for percpu area |
| * @vaddr: explicit base address (optional) |
| * @phdr: destination PHDR (optional) |
| * |
| * Macro which expands to output section for percpu area. If @vaddr |
| * is not blank, it specifies explicit base address and all percpu |
| * symbols will be offset from the given address. If blank, @vaddr |
| * always equals @laddr + LOAD_OFFSET. |
| * |
| * @phdr defines the output PHDR to use if not blank. Be warned that |
| * output PHDR is sticky. If @phdr is specified, the next output |
| * section in the linker script will go there too. @phdr should have |
| * a leading colon. |
| * |
| * Note that this macros defines __per_cpu_load as an absolute symbol. |
| * If there is no need to put the percpu section at a predetermined |
| * address, use PERCPU(). |
| */ |
| #define PERCPU_VADDR(vaddr, phdr) \ |
| VMLINUX_SYMBOL(__per_cpu_load) = .; \ |
| .data.percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \ |
| - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__per_cpu_start) = .; \ |
| *(.data.percpu.first) \ |
| *(.data.percpu.page_aligned) \ |
| *(.data.percpu) \ |
| *(.data.percpu.shared_aligned) \ |
| VMLINUX_SYMBOL(__per_cpu_end) = .; \ |
| } phdr \ |
| . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data.percpu); |
| |
| /** |
| * PERCPU - define output section for percpu area, simple version |
| * @align: required alignment |
| * |
| * Align to @align and outputs output section for percpu area. This |
| * macro doesn't maniuplate @vaddr or @phdr and __per_cpu_load and |
| * __per_cpu_start will be identical. |
| * |
| * This macro is equivalent to ALIGN(align); PERCPU_VADDR( , ) except |
| * that __per_cpu_load is defined as a relative symbol against |
| * .data.percpu which is required for relocatable x86_32 |
| * configuration. |
| */ |
| #define PERCPU(align) \ |
| . = ALIGN(align); \ |
| .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { \ |
| VMLINUX_SYMBOL(__per_cpu_load) = .; \ |
| VMLINUX_SYMBOL(__per_cpu_start) = .; \ |
| *(.data.percpu.first) \ |
| *(.data.percpu.page_aligned) \ |
| *(.data.percpu) \ |
| *(.data.percpu.shared_aligned) \ |
| VMLINUX_SYMBOL(__per_cpu_end) = .; \ |
| } |
