diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/export.h | 34 | ||||
| -rw-r--r-- | include/asm-generic/vmlinux.lds.h | 334 | ||||
| -rw-r--r-- | include/linux/export.h | 16 |
3 files changed, 188 insertions, 196 deletions
diff --git a/include/asm-generic/export.h b/include/asm-generic/export.h index 719db1968d81..68efb950a918 100644 --- a/include/asm-generic/export.h +++ b/include/asm-generic/export.h @@ -19,42 +19,32 @@ #define KCRC_ALIGN 4 #endif -#ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX -#define KSYM(name) _##name -#else -#define KSYM(name) name -#endif - /* * note on .section use: @progbits vs %progbits nastiness doesn't matter, * since we immediately emit into those sections anyway. */ .macro ___EXPORT_SYMBOL name,val,sec #ifdef CONFIG_MODULES - .globl KSYM(__ksymtab_\name) + .globl __ksymtab_\name .section ___ksymtab\sec+\name,"a" .balign KSYM_ALIGN -KSYM(__ksymtab_\name): - __put \val, KSYM(__kstrtab_\name) +__ksymtab_\name: + __put \val, __kstrtab_\name .previous .section __ksymtab_strings,"a" -KSYM(__kstrtab_\name): -#ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX - .asciz "_\name" -#else +__kstrtab_\name: .asciz "\name" -#endif .previous #ifdef CONFIG_MODVERSIONS .section ___kcrctab\sec+\name,"a" .balign KCRC_ALIGN -KSYM(__kcrctab_\name): +__kcrctab_\name: #if defined(CONFIG_MODULE_REL_CRCS) - .long KSYM(__crc_\name) - . + .long __crc_\name - . #else - .long KSYM(__crc_\name) + .long __crc_\name #endif - .weak KSYM(__crc_\name) + .weak __crc_\name .previous #endif #endif @@ -84,12 +74,12 @@ KSYM(__kcrctab_\name): #endif #define EXPORT_SYMBOL(name) \ - __EXPORT_SYMBOL(name, KSYM_FUNC(KSYM(name)),) + __EXPORT_SYMBOL(name, KSYM_FUNC(name),) #define EXPORT_SYMBOL_GPL(name) \ - __EXPORT_SYMBOL(name, KSYM_FUNC(KSYM(name)), _gpl) + __EXPORT_SYMBOL(name, KSYM_FUNC(name), _gpl) #define EXPORT_DATA_SYMBOL(name) \ - __EXPORT_SYMBOL(name, KSYM(name),) + __EXPORT_SYMBOL(name, name,) #define EXPORT_DATA_SYMBOL_GPL(name) \ - __EXPORT_SYMBOL(name, KSYM(name),_gpl) + __EXPORT_SYMBOL(name, name,_gpl) #endif diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index af240573e482..e373e2e10f6a 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -64,15 +64,24 @@ * generates .data.identifier sections, which need to be pulled in with * .data. We don't want to pull in .data..other sections, which Linux * has defined. Same for text and bss. + * + * RODATA_MAIN is not used because existing code already defines .rodata.x + * sections to be brought in with rodata. */ #ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION #define TEXT_MAIN .text .text.[0-9a-zA-Z_]* #define DATA_MAIN .data .data.[0-9a-zA-Z_]* +#define SDATA_MAIN .sdata .sdata.[0-9a-zA-Z_]* +#define RODATA_MAIN .rodata .rodata.[0-9a-zA-Z_]* #define BSS_MAIN .bss .bss.[0-9a-zA-Z_]* +#define SBSS_MAIN .sbss .sbss.[0-9a-zA-Z_]* #else #define TEXT_MAIN .text #define DATA_MAIN .data +#define SDATA_MAIN .sdata +#define RODATA_MAIN .rodata #define BSS_MAIN .bss +#define SBSS_MAIN .sbss #endif /* @@ -104,66 +113,66 @@ #ifdef CONFIG_FTRACE_MCOUNT_RECORD #define MCOUNT_REC() . = ALIGN(8); \ - VMLINUX_SYMBOL(__start_mcount_loc) = .; \ - *(__mcount_loc) \ - VMLINUX_SYMBOL(__stop_mcount_loc) = .; + __start_mcount_loc = .; \ + KEEP(*(__mcount_loc)) \ + __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) = .; +#define LIKELY_PROFILE() __start_annotated_branch_profile = .; \ + KEEP(*(_ftrace_annotated_branch)) \ + __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) = .; +#define BRANCH_PROFILE() __start_branch_profile = .; \ + KEEP(*(_ftrace_branch)) \ + __stop_branch_profile = .; #else #define BRANCH_PROFILE() #endif #ifdef CONFIG_KPROBES #define KPROBE_BLACKLIST() . = ALIGN(8); \ - VMLINUX_SYMBOL(__start_kprobe_blacklist) = .; \ + __start_kprobe_blacklist = .; \ KEEP(*(_kprobe_blacklist)) \ - VMLINUX_SYMBOL(__stop_kprobe_blacklist) = .; + __stop_kprobe_blacklist = .; #else #define KPROBE_BLACKLIST() #endif #ifdef CONFIG_FUNCTION_ERROR_INJECTION #define ERROR_INJECT_WHITELIST() STRUCT_ALIGN(); \ - VMLINUX_SYMBOL(__start_error_injection_whitelist) = .;\ + __start_error_injection_whitelist = .; \ KEEP(*(_error_injection_whitelist)) \ - VMLINUX_SYMBOL(__stop_error_injection_whitelist) = .; + __stop_error_injection_whitelist = .; #else #define ERROR_INJECT_WHITELIST() #endif #ifdef CONFIG_EVENT_TRACING #define FTRACE_EVENTS() . = ALIGN(8); \ - VMLINUX_SYMBOL(__start_ftrace_events) = .; \ + __start_ftrace_events = .; \ KEEP(*(_ftrace_events)) \ - VMLINUX_SYMBOL(__stop_ftrace_events) = .; \ - VMLINUX_SYMBOL(__start_ftrace_eval_maps) = .; \ + __stop_ftrace_events = .; \ + __start_ftrace_eval_maps = .; \ KEEP(*(_ftrace_eval_map)) \ - VMLINUX_SYMBOL(__stop_ftrace_eval_maps) = .; + __stop_ftrace_eval_maps = .; #else #define FTRACE_EVENTS() #endif #ifdef CONFIG_TRACING -#define TRACE_PRINTKS() VMLINUX_SYMBOL(__start___trace_bprintk_fmt) = .; \ +#define TRACE_PRINTKS() __start___trace_bprintk_fmt = .; \ KEEP(*(__trace_printk_fmt)) /* Trace_printk fmt' pointer */ \ - VMLINUX_SYMBOL(__stop___trace_bprintk_fmt) = .; -#define TRACEPOINT_STR() VMLINUX_SYMBOL(__start___tracepoint_str) = .; \ + __stop___trace_bprintk_fmt = .; +#define TRACEPOINT_STR() __start___tracepoint_str = .; \ KEEP(*(__tracepoint_str)) /* Trace_printk fmt' pointer */ \ - VMLINUX_SYMBOL(__stop___tracepoint_str) = .; + __stop___tracepoint_str = .; #else #define TRACE_PRINTKS() #define TRACEPOINT_STR() @@ -171,27 +180,27 @@ #ifdef CONFIG_FTRACE_SYSCALLS #define TRACE_SYSCALLS() . = ALIGN(8); \ - VMLINUX_SYMBOL(__start_syscalls_metadata) = .; \ + __start_syscalls_metadata = .; \ KEEP(*(__syscalls_metadata)) \ - VMLINUX_SYMBOL(__stop_syscalls_metadata) = .; + __stop_syscalls_metadata = .; #else #define TRACE_SYSCALLS() #endif #ifdef CONFIG_BPF_EVENTS #define BPF_RAW_TP() STRUCT_ALIGN(); \ - VMLINUX_SYMBOL(__start__bpf_raw_tp) = .; \ + __start__bpf_raw_tp = .; \ KEEP(*(__bpf_raw_tp_map)) \ - VMLINUX_SYMBOL(__stop__bpf_raw_tp) = .; + __stop__bpf_raw_tp = .; #else #define BPF_RAW_TP() #endif #ifdef CONFIG_SERIAL_EARLYCON #define EARLYCON_TABLE() . = ALIGN(8); \ - VMLINUX_SYMBOL(__earlycon_table) = .; \ + __earlycon_table = .; \ KEEP(*(__earlycon_table)) \ - VMLINUX_SYMBOL(__earlycon_table_end) = .; + __earlycon_table_end = .; #else #define EARLYCON_TABLE() #endif @@ -202,7 +211,7 @@ #define _OF_TABLE_0(name) #define _OF_TABLE_1(name) \ . = ALIGN(8); \ - VMLINUX_SYMBOL(__##name##_of_table) = .; \ + __##name##_of_table = .; \ KEEP(*(__##name##_of_table)) \ KEEP(*(__##name##_of_table_end)) @@ -217,18 +226,18 @@ #ifdef CONFIG_ACPI #define ACPI_PROBE_TABLE(name) \ . = ALIGN(8); \ - VMLINUX_SYMBOL(__##name##_acpi_probe_table) = .; \ + __##name##_acpi_probe_table = .; \ KEEP(*(__##name##_acpi_probe_table)) \ - VMLINUX_SYMBOL(__##name##_acpi_probe_table_end) = .; + __##name##_acpi_probe_table_end = .; #else #define ACPI_PROBE_TABLE(name) #endif #define KERNEL_DTB() \ STRUCT_ALIGN(); \ - VMLINUX_SYMBOL(__dtb_start) = .; \ + __dtb_start = .; \ KEEP(*(.dtb.init.rodata)) \ - VMLINUX_SYMBOL(__dtb_end) = .; + __dtb_end = .; /* * .data section @@ -238,23 +247,23 @@ *(DATA_MAIN) \ *(.ref.data) \ *(.data..shared_aligned) /* percpu related */ \ - MEM_KEEP(init.data) \ - MEM_KEEP(exit.data) \ + MEM_KEEP(init.data*) \ + MEM_KEEP(exit.data*) \ *(.data.unlikely) \ - VMLINUX_SYMBOL(__start_once) = .; \ + __start_once = .; \ *(.data.once) \ - VMLINUX_SYMBOL(__end_once) = .; \ + __end_once = .; \ STRUCT_ALIGN(); \ *(__tracepoints) \ /* implement dynamic printk debug */ \ . = ALIGN(8); \ - VMLINUX_SYMBOL(__start___jump_table) = .; \ + __start___jump_table = .; \ KEEP(*(__jump_table)) \ - VMLINUX_SYMBOL(__stop___jump_table) = .; \ + __stop___jump_table = .; \ . = ALIGN(8); \ - VMLINUX_SYMBOL(__start___verbose) = .; \ + __start___verbose = .; \ KEEP(*(__verbose)) \ - VMLINUX_SYMBOL(__stop___verbose) = .; \ + __stop___verbose = .; \ LIKELY_PROFILE() \ BRANCH_PROFILE() \ TRACE_PRINTKS() \ @@ -266,10 +275,10 @@ */ #define NOSAVE_DATA \ . = ALIGN(PAGE_SIZE); \ - VMLINUX_SYMBOL(__nosave_begin) = .; \ + __nosave_begin = .; \ *(.data..nosave) \ . = ALIGN(PAGE_SIZE); \ - VMLINUX_SYMBOL(__nosave_end) = .; + __nosave_end = .; #define PAGE_ALIGNED_DATA(page_align) \ . = ALIGN(page_align); \ @@ -286,13 +295,13 @@ #define INIT_TASK_DATA(align) \ . = ALIGN(align); \ - VMLINUX_SYMBOL(__start_init_task) = .; \ - VMLINUX_SYMBOL(init_thread_union) = .; \ - VMLINUX_SYMBOL(init_stack) = .; \ - *(.data..init_task) \ - *(.data..init_thread_info) \ - . = VMLINUX_SYMBOL(__start_init_task) + THREAD_SIZE; \ - VMLINUX_SYMBOL(__end_init_task) = .; + __start_init_task = .; \ + init_thread_union = .; \ + init_stack = .; \ + KEEP(*(.data..init_task)) \ + KEEP(*(.data..init_thread_info)) \ + . = __start_init_task + THREAD_SIZE; \ + __end_init_task = .; /* * Allow architectures to handle ro_after_init data on their @@ -300,9 +309,9 @@ */ #ifndef RO_AFTER_INIT_DATA #define RO_AFTER_INIT_DATA \ - VMLINUX_SYMBOL(__start_ro_after_init) = .; \ + __start_ro_after_init = .; \ *(.data..ro_after_init) \ - VMLINUX_SYMBOL(__end_ro_after_init) = .; + __end_ro_after_init = .; #endif /* @@ -311,14 +320,14 @@ #define RO_DATA_SECTION(align) \ . = ALIGN((align)); \ .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start_rodata) = .; \ + __start_rodata = .; \ *(.rodata) *(.rodata.*) \ RO_AFTER_INIT_DATA /* Read only after init */ \ KEEP(*(__vermagic)) /* Kernel version magic */ \ . = ALIGN(8); \ - VMLINUX_SYMBOL(__start___tracepoints_ptrs) = .; \ + __start___tracepoints_ptrs = .; \ KEEP(*(__tracepoints_ptrs)) /* Tracepoints: pointer array */ \ - VMLINUX_SYMBOL(__stop___tracepoints_ptrs) = .; \ + __stop___tracepoints_ptrs = .; \ *(__tracepoints_strings)/* Tracepoints: strings */ \ } \ \ @@ -328,109 +337,109 @@ \ /* PCI quirks */ \ .pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \ + __start_pci_fixups_early = .; \ KEEP(*(.pci_fixup_early)) \ - VMLINUX_SYMBOL(__end_pci_fixups_early) = .; \ - VMLINUX_SYMBOL(__start_pci_fixups_header) = .; \ + __end_pci_fixups_early = .; \ + __start_pci_fixups_header = .; \ KEEP(*(.pci_fixup_header)) \ - VMLINUX_SYMBOL(__end_pci_fixups_header) = .; \ - VMLINUX_SYMBOL(__start_pci_fixups_final) = .; \ + __end_pci_fixups_header = .; \ + __start_pci_fixups_final = .; \ KEEP(*(.pci_fixup_final)) \ - VMLINUX_SYMBOL(__end_pci_fixups_final) = .; \ - VMLINUX_SYMBOL(__start_pci_fixups_enable) = .; \ + __end_pci_fixups_final = .; \ + __start_pci_fixups_enable = .; \ KEEP(*(.pci_fixup_enable)) \ - VMLINUX_SYMBOL(__end_pci_fixups_enable) = .; \ - VMLINUX_SYMBOL(__start_pci_fixups_resume) = .; \ + __end_pci_fixups_enable = .; \ + __start_pci_fixups_resume = .; \ KEEP(*(.pci_fixup_resume)) \ - VMLINUX_SYMBOL(__end_pci_fixups_resume) = .; \ - VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .; \ + __end_pci_fixups_resume = .; \ + __start_pci_fixups_resume_early = .; \ KEEP(*(.pci_fixup_resume_early)) \ - VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .; \ - VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .; \ + __end_pci_fixups_resume_early = .; \ + __start_pci_fixups_suspend = .; \ KEEP(*(.pci_fixup_suspend)) \ - VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .; \ - VMLINUX_SYMBOL(__start_pci_fixups_suspend_late) = .; \ + __end_pci_fixups_suspend = .; \ + __start_pci_fixups_suspend_late = .; \ KEEP(*(.pci_fixup_suspend_late)) \ - VMLINUX_SYMBOL(__end_pci_fixups_suspend_late) = .; \ + __end_pci_fixups_suspend_late = .; \ } \ \ /* Built-in firmware blobs */ \ .builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start_builtin_fw) = .; \ + __start_builtin_fw = .; \ KEEP(*(.builtin_fw)) \ - VMLINUX_SYMBOL(__end_builtin_fw) = .; \ + __end_builtin_fw = .; \ } \ \ TRACEDATA \ \ /* Kernel symbol table: Normal symbols */ \ __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___ksymtab) = .; \ + __start___ksymtab = .; \ KEEP(*(SORT(___ksymtab+*))) \ - VMLINUX_SYMBOL(__stop___ksymtab) = .; \ + __stop___ksymtab = .; \ } \ \ /* Kernel symbol table: GPL-only symbols */ \ __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \ + __start___ksymtab_gpl = .; \ KEEP(*(SORT(___ksymtab_gpl+*))) \ - VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \ + __stop___ksymtab_gpl = .; \ } \ \ /* Kernel symbol table: Normal unused symbols */ \ __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \ + __start___ksymtab_unused = .; \ KEEP(*(SORT(___ksymtab_unused+*))) \ - VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \ + __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) = .; \ + __start___ksymtab_unused_gpl = .; \ KEEP(*(SORT(___ksymtab_unused_gpl+*))) \ - VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \ + __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) = .; \ + __start___ksymtab_gpl_future = .; \ KEEP(*(SORT(___ksymtab_gpl_future+*))) \ - VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \ + __stop___ksymtab_gpl_future = .; \ } \ \ /* Kernel symbol table: Normal symbols */ \ __kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___kcrctab) = .; \ + __start___kcrctab = .; \ KEEP(*(SORT(___kcrctab+*))) \ - VMLINUX_SYMBOL(__stop___kcrctab) = .; \ + __stop___kcrctab = .; \ } \ \ /* Kernel symbol table: GPL-only symbols */ \ __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \ + __start___kcrctab_gpl = .; \ KEEP(*(SORT(___kcrctab_gpl+*))) \ - VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \ + __stop___kcrctab_gpl = .; \ } \ \ /* Kernel symbol table: Normal unused symbols */ \ __kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \ + __start___kcrctab_unused = .; \ KEEP(*(SORT(___kcrctab_unused+*))) \ - VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \ + __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) = .; \ + __start___kcrctab_unused_gpl = .; \ KEEP(*(SORT(___kcrctab_unused_gpl+*))) \ - VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \ + __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) = .; \ + __start___kcrctab_gpl_future = .; \ KEEP(*(SORT(___kcrctab_gpl_future+*))) \ - VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \ + __stop___kcrctab_gpl_future = .; \ } \ \ /* Kernel symbol table: strings */ \ @@ -447,18 +456,18 @@ \ /* Built-in module parameters. */ \ __param : AT(ADDR(__param) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___param) = .; \ + __start___param = .; \ KEEP(*(__param)) \ - VMLINUX_SYMBOL(__stop___param) = .; \ + __stop___param = .; \ } \ \ /* Built-in module versions. */ \ __modver : AT(ADDR(__modver) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___modver) = .; \ + __start___modver = .; \ KEEP(*(__modver)) \ - VMLINUX_SYMBOL(__stop___modver) = .; \ + __stop___modver = .; \ . = ALIGN((align)); \ - VMLINUX_SYMBOL(__end_rodata) = .; \ + __end_rodata = .; \ } \ . = ALIGN((align)); @@ -469,9 +478,9 @@ #define SECURITY_INIT \ .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__security_initcall_start) = .; \ + __security_initcall_start = .; \ KEEP(*(.security_initcall.init)) \ - VMLINUX_SYMBOL(__security_initcall_end) = .; \ + __security_initcall_end = .; \ } /* @@ -487,58 +496,58 @@ *(.text.hot TEXT_MAIN .text.fixup .text.unlikely) \ *(.text..refcount) \ *(.ref.text) \ - MEM_KEEP(init.text) \ - MEM_KEEP(exit.text) \ + MEM_KEEP(init.text*) \ + MEM_KEEP(exit.text*) \ /* 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_start = .; \ *(.sched.text) \ - VMLINUX_SYMBOL(__sched_text_end) = .; + __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) = .; \ + __lock_text_start = .; \ *(.spinlock.text) \ - VMLINUX_SYMBOL(__lock_text_end) = .; + __lock_text_end = .; #define CPUIDLE_TEXT \ ALIGN_FUNCTION(); \ - VMLINUX_SYMBOL(__cpuidle_text_start) = .; \ + __cpuidle_text_start = .; \ *(.cpuidle.text) \ - VMLINUX_SYMBOL(__cpuidle_text_end) = .; + __cpuidle_text_end = .; #define KPROBES_TEXT \ ALIGN_FUNCTION(); \ - VMLINUX_SYMBOL(__kprobes_text_start) = .; \ + __kprobes_text_start = .; \ *(.kprobes.text) \ - VMLINUX_SYMBOL(__kprobes_text_end) = .; + __kprobes_text_end = .; #define ENTRY_TEXT \ ALIGN_FUNCTION(); \ - VMLINUX_SYMBOL(__entry_text_start) = .; \ + __entry_text_start = .; \ *(.entry.text) \ - VMLINUX_SYMBOL(__entry_text_end) = .; + __entry_text_end = .; #define IRQENTRY_TEXT \ ALIGN_FUNCTION(); \ - VMLINUX_SYMBOL(__irqentry_text_start) = .; \ + __irqentry_text_start = .; \ *(.irqentry.text) \ - VMLINUX_SYMBOL(__irqentry_text_end) = .; + __irqentry_text_end = .; #define SOFTIRQENTRY_TEXT \ ALIGN_FUNCTION(); \ - VMLINUX_SYMBOL(__softirqentry_text_start) = .; \ + __softirqentry_text_start = .; \ *(.softirqentry.text) \ - VMLINUX_SYMBOL(__softirqentry_text_end) = .; + __softirqentry_text_end = .; /* Section used for early init (in .S files) */ -#define HEAD_TEXT *(.head.text) +#define HEAD_TEXT KEEP(*(.head.text)) #define HEAD_TEXT_SECTION \ .head.text : AT(ADDR(.head.text) - LOAD_OFFSET) { \ @@ -551,9 +560,9 @@ #define EXCEPTION_TABLE(align) \ . = ALIGN(align); \ __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___ex_table) = .; \ + __start___ex_table = .; \ KEEP(*(__ex_table)) \ - VMLINUX_SYMBOL(__stop___ex_table) = .; \ + __stop___ex_table = .; \ } /* @@ -567,11 +576,11 @@ #ifdef CONFIG_CONSTRUCTORS #define KERNEL_CTORS() . = ALIGN(8); \ - VMLINUX_SYMBOL(__ctors_start) = .; \ + __ctors_start = .; \ KEEP(*(.ctors)) \ KEEP(*(SORT(.init_array.*))) \ KEEP(*(.init_array)) \ - VMLINUX_SYMBOL(__ctors_end) = .; + __ctors_end = .; #else #define KERNEL_CTORS() #endif @@ -579,11 +588,11 @@ /* init and exit section handling */ #define INIT_DATA \ KEEP(*(SORT(___kentry+*))) \ - *(.init.data) \ - MEM_DISCARD(init.data) \ + *(.init.data init.data.*) \ + MEM_DISCARD(init.data*) \ KERNEL_CTORS() \ MCOUNT_REC() \ - *(.init.rodata) \ + *(.init.rodata .init.rodata.*) \ FTRACE_EVENTS() \ TRACE_SYSCALLS() \ KPROBE_BLACKLIST() \ @@ -602,16 +611,16 @@ EARLYCON_TABLE() #define INIT_TEXT \ - *(.init.text) \ + *(.init.text .init.text.*) \ *(.text.startup) \ - MEM_DISCARD(init.text) + MEM_DISCARD(init.text*) #define EXIT_DATA \ - *(.exit.data) \ + *(.exit.data .exit.data.*) \ *(.fini_array) \ *(.dtors) \ - MEM_DISCARD(exit.data) \ - MEM_DISCARD(exit.rodata) + MEM_DISCARD(exit.data*) \ + MEM_DISCARD(exit.rodata*) #define EXIT_TEXT \ *(.exit.text) \ @@ -629,7 +638,7 @@ . = ALIGN(sbss_align); \ .sbss : AT(ADDR(.sbss) - LOAD_OFFSET) { \ *(.dynsbss) \ - *(.sbss) \ + *(SBSS_MAIN) \ *(.scommon) \ } @@ -706,9 +715,9 @@ #define BUG_TABLE \ . = ALIGN(8); \ __bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___bug_table) = .; \ + __start___bug_table = .; \ KEEP(*(__bug_table)) \ - VMLINUX_SYMBOL(__stop___bug_table) = .; \ + __stop___bug_table = .; \ } #else #define BUG_TABLE @@ -718,22 +727,22 @@ #define ORC_UNWIND_TABLE \ . = ALIGN(4); \ .orc_unwind_ip : AT(ADDR(.orc_unwind_ip) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start_orc_unwind_ip) = .; \ + __start_orc_unwind_ip = .; \ KEEP(*(.orc_unwind_ip)) \ - VMLINUX_SYMBOL(__stop_orc_unwind_ip) = .; \ + __stop_orc_unwind_ip = .; \ } \ . = ALIGN(6); \ .orc_unwind : AT(ADDR(.orc_unwind) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start_orc_unwind) = .; \ + __start_orc_unwind = .; \ KEEP(*(.orc_unwind)) \ - VMLINUX_SYMBOL(__stop_orc_unwind) = .; \ + __stop_orc_unwind = .; \ } \ . = ALIGN(4); \ .orc_lookup : AT(ADDR(.orc_lookup) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(orc_lookup) = .; \ + orc_lookup = .; \ . += (((SIZEOF(.text) + LOOKUP_BLOCK_SIZE - 1) / \ LOOKUP_BLOCK_SIZE) + 1) * 4; \ - VMLINUX_SYMBOL(orc_lookup_end) = .; \ + orc_lookup_end = .; \ } #else #define ORC_UNWIND_TABLE @@ -743,9 +752,9 @@ #define TRACEDATA \ . = ALIGN(4); \ .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__tracedata_start) = .; \ + __tracedata_start = .; \ KEEP(*(.tracedata)) \ - VMLINUX_SYMBOL(__tracedata_end) = .; \ + __tracedata_end = .; \ } #else #define TRACEDATA @@ -753,24 +762,24 @@ #define NOTES \ .notes : AT(ADDR(.notes) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start_notes) = .; \ - *(.note.*) \ - VMLINUX_SYMBOL(__stop_notes) = .; \ + __start_notes = .; \ + KEEP(*(.note.*)) \ + __stop_notes = .; \ } #define INIT_SETUP(initsetup_align) \ . = ALIGN(initsetup_align); \ - VMLINUX_SYMBOL(__setup_start) = .; \ + __setup_start = .; \ KEEP(*(.init.setup)) \ - VMLINUX_SYMBOL(__setup_end) = .; + __setup_end = .; #define INIT_CALLS_LEVEL(level) \ - VMLINUX_SYMBOL(__initcall##level##_start) = .; \ + __initcall##level##_start = .; \ KEEP(*(.initcall##level##.init)) \ KEEP(*(.initcall##level##s.init)) \ #define INIT_CALLS \ - VMLINUX_SYMBOL(__initcall_start) = .; \ + __initcall_start = .; \ KEEP(*(.initcallearly.init)) \ INIT_CALLS_LEVEL(0) \ INIT_CALLS_LEVEL(1) \ @@ -781,22 +790,22 @@ INIT_CALLS_LEVEL(rootfs) \ INIT_CALLS_LEVEL(6) \ INIT_CALLS_LEVEL(7) \ - VMLINUX_SYMBOL(__initcall_end) = .; + __initcall_end = .; #define CON_INITCALL \ - VMLINUX_SYMBOL(__con_initcall_start) = .; \ + __con_initcall_start = .; \ KEEP(*(.con_initcall.init)) \ - VMLINUX_SYMBOL(__con_initcall_end) = .; + __con_initcall_end = .; #define SECURITY_INITCALL \ - VMLINUX_SYMBOL(__security_initcall_start) = .; \ + __security_initcall_start = .; \ KEEP(*(.security_initcall.init)) \ - VMLINUX_SYMBOL(__security_initcall_end) = .; + __security_initcall_end = .; #ifdef CONFIG_BLK_DEV_INITRD #define INIT_RAM_FS \ . = ALIGN(4); \ - VMLINUX_SYMBOL(__initramfs_start) = .; \ + __initramfs_start = .; \ KEEP(*(.init.ramfs)) \ . = ALIGN(8); \ KEEP(*(.init.ramfs.info)) @@ -851,7 +860,7 @@ * sharing between subsections for different purposes. */ #define PERCPU_INPUT(cacheline) \ - VMLINUX_SYMBOL(__per_cpu_start) = .; \ + __per_cpu_start = .; \ *(.data..percpu..first) \ . = ALIGN(PAGE_SIZE); \ *(.data..percpu..page_aligned) \ @@ -861,7 +870,7 @@ *(.data..percpu) \ *(.data..percpu..shared_aligned) \ PERCPU_DECRYPTED_SECTION \ - VMLINUX_SYMBOL(__per_cpu_end) = .; + __per_cpu_end = .; /** * PERCPU_VADDR - define output section for percpu area @@ -888,12 +897,11 @@ * address, use PERCPU_SECTION. */ #define PERCPU_VADDR(cacheline, vaddr, phdr) \ - VMLINUX_SYMBOL(__per_cpu_load) = .; \ - .data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \ - - LOAD_OFFSET) { \ + __per_cpu_load = .; \ + .data..percpu vaddr : AT(__per_cpu_load - LOAD_OFFSET) { \ PERCPU_INPUT(cacheline) \ } phdr \ - . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu); + . = __per_cpu_load + SIZEOF(.data..percpu); /** * PERCPU_SECTION - define output section for percpu area, simple version @@ -910,7 +918,7 @@ #define PERCPU_SECTION(cacheline) \ . = ALIGN(PAGE_SIZE); \ .data..percpu : AT(ADDR(.data..percpu) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__per_cpu_load) = .; \ + __per_cpu_load = .; \ PERCPU_INPUT(cacheline) \ } @@ -949,9 +957,9 @@ #define INIT_TEXT_SECTION(inittext_align) \ . = ALIGN(inittext_align); \ .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(_sinittext) = .; \ + _sinittext = .; \ INIT_TEXT \ - VMLINUX_SYMBOL(_einittext) = .; \ + _einittext = .; \ } #define INIT_DATA_SECTION(initsetup_align) \ @@ -966,8 +974,8 @@ #define BSS_SECTION(sbss_align, bss_align, stop_align) \ . = ALIGN(sbss_align); \ - VMLINUX_SYMBOL(__bss_start) = .; \ + __bss_start = .; \ SBSS(sbss_align) \ BSS(bss_align) \ . = ALIGN(stop_align); \ - VMLINUX_SYMBOL(__bss_stop) = .; + __bss_stop = .; diff --git a/include/linux/export.h b/include/linux/export.h index 1a1dfdb2a5c6..b768d6dd3c90 100644 --- a/include/linux/export.h +++ b/include/linux/export.h @@ -10,14 +10,8 @@ * hackers place grumpy comments in header files. */ -/* Some toolchains use a `_' prefix for all user symbols. */ -#ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX -#define __VMLINUX_SYMBOL(x) _##x -#define __VMLINUX_SYMBOL_STR(x) "_" #x -#else #define __VMLINUX_SYMBOL(x) x #define __VMLINUX_SYMBOL_STR(x) #x -#endif /* Indirect, so macros are expanded before pasting. */ #define VMLINUX_SYMBOL(x) __VMLINUX_SYMBOL(x) @@ -46,14 +40,14 @@ extern struct module __this_module; #if defined(CONFIG_MODULE_REL_CRCS) #define __CRC_SYMBOL(sym, sec) \ asm(" .section \"___kcrctab" sec "+" #sym "\", \"a\" \n" \ - " .weak " VMLINUX_SYMBOL_STR(__crc_##sym) " \n" \ - " .long " VMLINUX_SYMBOL_STR(__crc_##sym) " - . \n" \ + " .weak __crc_" #sym " \n" \ + " .long __crc_" #sym " - . \n" \ " .previous \n"); #else #define __CRC_SYMBOL(sym, sec) \ asm(" .section \"___kcrctab" sec "+" #sym "\", \"a\" \n" \ - " .weak " VMLINUX_SYMBOL_STR(__crc_##sym) " \n" \ - " .long " VMLINUX_SYMBOL_STR(__crc_##sym) " \n" \ + " .weak __crc_" #sym " \n" \ + " .long __crc_" #sym " \n" \ " .previous \n"); #endif #else @@ -66,7 +60,7 @@ extern struct module __this_module; __CRC_SYMBOL(sym, sec) \ static const char __kstrtab_##sym[] \ __attribute__((section("__ksymtab_strings"), aligned(1))) \ - = VMLINUX_SYMBOL_STR(sym); \ + = #sym; \ static const struct kernel_symbol __ksymtab_##sym \ __used \ __attribute__((section("___ksymtab" sec "+" #sym), used)) \ |