1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #include <asm/vdso.h> 3 4 /* 5 * Linker script for vDSO. This is an ELF sha 6 * its virtual address, and with only one read 7 * This script controls its layout. 8 */ 9 10 SECTIONS 11 { 12 /* 13 * User/kernel shared data is before t 14 * uglier than putting it after the vD 15 * non-allocatable things that dangle 16 * segment. 17 */ 18 19 vvar_start = . - 4 * PAGE_SIZE; 20 vvar_page = vvar_start; 21 22 /* Place all vvars at the offsets in a 23 #define EMIT_VVAR(name, offset) vvar_ ## name 24 #include <asm/vvar.h> 25 #undef EMIT_VVAR 26 27 pvclock_page = vvar_start + PAGE_SIZE; 28 hvclock_page = vvar_start + 2 * PAGE_S 29 timens_page = vvar_start + 3 * PAGE_S 30 31 #undef _ASM_X86_VVAR_H 32 /* Place all vvars in timens too at th 33 #define EMIT_VVAR(name, offset) timens_ ## nam 34 #include <asm/vvar.h> 35 #undef EMIT_VVAR 36 37 . = SIZEOF_HEADERS; 38 39 .hash : { *(.hash) } 40 .gnu.hash : { *(.gnu.hash) } 41 .dynsym : { *(.dynsym) } 42 .dynstr : { *(.dynstr) } 43 .gnu.version : { *(.gnu.version) } 44 .gnu.version_d : { *(.gnu.version_d) 45 .gnu.version_r : { *(.gnu.version_r) 46 47 .dynamic : { *(.dynamic) } 48 49 .rodata : { 50 *(.rodata*) 51 *(.data*) 52 *(.sdata*) 53 *(.got.plt) *(.got) 54 *(.gnu.linkonce.d.*) 55 *(.bss*) 56 *(.dynbss*) 57 *(.gnu.linkonce.b.*) 58 } 59 60 /* 61 * Discard .note.gnu.property sections 62 * different alignment requirement fro 63 */ 64 /DISCARD/ : { 65 *(.note.gnu.property) 66 } 67 .note : { *(.note.*) } 68 69 .eh_frame_hdr : { *(.eh_frame_hdr) } 70 .eh_frame : { KEEP (*(.eh_frame) 71 72 73 /* 74 * Text is well-separated from actual 75 * stuff that isn't used at runtime in 76 */ 77 78 .text : { 79 *(.text*) 80 } 81 82 83 84 .altinstructions : { *(.altinst 85 .altinstr_replacement : { *(.altinst 86 87 __ex_table : { *(__ex_tab 88 89 /DISCARD/ : { 90 *(.discard) 91 *(.discard.*) 92 *(__bug_table) 93 } 94 } 95 96 /* 97 * Very old versions of ld do not recognize th 98 */ 99 #define PT_GNU_EH_FRAME 0x6474e550 100 101 /* 102 * We must supply the ELF program headers expl 103 * PT_LOAD segment, and set the flags explicit 104 */ 105 PHDRS 106 { 107 text PT_LOAD FLAGS( 108 dynamic PT_DYNAMIC FLAGS( 109 note PT_NOTE FLAGS( 110 eh_frame_hdr PT_GNU_EH_FRAME; 111 }
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