1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * This is the infamous ld script for the 64 bits vdso 4 * library 5 */ 6 7 #include <asm/vdso/vsyscall.h> 8 #include <asm/page.h> 9 #include <asm/vdso.h> 10 11 OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390") 12 OUTPUT_ARCH(s390:64-bit) 13 14 SECTIONS 15 { 16 PROVIDE(_vdso_data = . - __VVAR_PAGES * PAGE_SIZE); 17 PROVIDE(_vdso_rng_data = _vdso_data + __VDSO_RND_DATA_OFFSET); 18 #ifdef CONFIG_TIME_NS 19 PROVIDE(_timens_data = _vdso_data + PAGE_SIZE); 20 #endif 21 . = VDSO_LBASE + SIZEOF_HEADERS; 22 23 .hash : { *(.hash) } :text 24 .gnu.hash : { *(.gnu.hash) } 25 .dynsym : { *(.dynsym) } 26 .dynstr : { *(.dynstr) } 27 .gnu.version : { *(.gnu.version) } 28 .gnu.version_d : { *(.gnu.version_d) } 29 .gnu.version_r : { *(.gnu.version_r) } 30 31 .note : { *(.note.*) } :text :note 32 33 . = ALIGN(16); 34 .text : { 35 *(.text .stub .text.* .gnu.linkonce.t.*) 36 } :text 37 PROVIDE(__etext = .); 38 PROVIDE(_etext = .); 39 PROVIDE(etext = .); 40 41 /* 42 * Other stuff is appended to the text segment: 43 */ 44 .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } 45 .rodata1 : { *(.rodata1) } 46 47 . = ALIGN(8); 48 .altinstructions : { *(.altinstructions) } 49 .altinstr_replacement : { *(.altinstr_replacement) } 50 51 .dynamic : { *(.dynamic) } :text :dynamic 52 53 .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr 54 .eh_frame : { KEEP (*(.eh_frame)) } :text 55 .gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) } 56 57 .rela.dyn ALIGN(8) : { *(.rela.dyn) } 58 .got ALIGN(8) : { *(.got .toc) } 59 .got.plt ALIGN(8) : { *(.got.plt) } 60 61 _end = .; 62 PROVIDE(end = .); 63 64 /* 65 * Stabs debugging sections are here too. 66 */ 67 .stab 0 : { *(.stab) } 68 .stabstr 0 : { *(.stabstr) } 69 .stab.excl 0 : { *(.stab.excl) } 70 .stab.exclstr 0 : { *(.stab.exclstr) } 71 .stab.index 0 : { *(.stab.index) } 72 .stab.indexstr 0 : { *(.stab.indexstr) } 73 .comment 0 : { *(.comment) } 74 75 /* 76 * DWARF debug sections. 77 * Symbols in the DWARF debugging sections are relative to the 78 * beginning of the section so we begin them at 0. 79 */ 80 /* DWARF 1 */ 81 .debug 0 : { *(.debug) } 82 .line 0 : { *(.line) } 83 /* GNU DWARF 1 extensions */ 84 .debug_srcinfo 0 : { *(.debug_srcinfo) } 85 .debug_sfnames 0 : { *(.debug_sfnames) } 86 /* DWARF 1.1 and DWARF 2 */ 87 .debug_aranges 0 : { *(.debug_aranges) } 88 .debug_pubnames 0 : { *(.debug_pubnames) } 89 /* DWARF 2 */ 90 .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } 91 .debug_abbrev 0 : { *(.debug_abbrev) } 92 .debug_line 0 : { *(.debug_line) } 93 .debug_frame 0 : { *(.debug_frame) } 94 .debug_str 0 : { *(.debug_str) } 95 .debug_loc 0 : { *(.debug_loc) } 96 .debug_macinfo 0 : { *(.debug_macinfo) } 97 /* SGI/MIPS DWARF 2 extensions */ 98 .debug_weaknames 0 : { *(.debug_weaknames) } 99 .debug_funcnames 0 : { *(.debug_funcnames) } 100 .debug_typenames 0 : { *(.debug_typenames) } 101 .debug_varnames 0 : { *(.debug_varnames) } 102 /* DWARF 3 */ 103 .debug_pubtypes 0 : { *(.debug_pubtypes) } 104 .debug_ranges 0 : { *(.debug_ranges) } 105 .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) } 106 107 /DISCARD/ : { 108 *(.note.GNU-stack) 109 *(.branch_lt) 110 *(.data .data.* .gnu.linkonce.d.* .sdata*) 111 *(.bss .sbss .dynbss .dynsbss) 112 } 113 } 114 115 /* 116 * Very old versions of ld do not recognize this name token; use the constant. 117 */ 118 #define PT_GNU_EH_FRAME 0x6474e550 119 120 /* 121 * We must supply the ELF program headers explicitly to get just one 122 * PT_LOAD segment, and set the flags explicitly to make segments read-only. 123 */ 124 PHDRS 125 { 126 text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */ 127 dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ 128 note PT_NOTE FLAGS(4); /* PF_R */ 129 eh_frame_hdr PT_GNU_EH_FRAME; 130 } 131 132 /* 133 * This controls what symbols we export from the DSO. 134 */ 135 VERSION 136 { 137 VDSO_VERSION_STRING { 138 global: 139 /* 140 * Has to be there for the kernel to find 141 */ 142 __kernel_gettimeofday; 143 __kernel_clock_gettime; 144 __kernel_clock_getres; 145 __kernel_getcpu; 146 __kernel_restart_syscall; 147 __kernel_rt_sigreturn; 148 __kernel_sigreturn; 149 __kernel_getrandom; 150 local: *; 151 }; 152 }
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