1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * Linker script for vDSO. This is an ELF shared object prelinked to 4 * its virtual address, and with only one read-only segment. 5 * This script controls its layout. 6 */ 7 8SECTIONS 9{ 10 . = VDSO_PRELINK + SIZEOF_HEADERS; 11 12 .hash : { *(.hash) } :text 13 .gnu.hash : { *(.gnu.hash) } 14 .dynsym : { *(.dynsym) } 15 .dynstr : { *(.dynstr) } 16 .gnu.version : { *(.gnu.version) } 17 .gnu.version_d : { *(.gnu.version_d) } 18 .gnu.version_r : { *(.gnu.version_r) } 19 20 .note : { *(.note.*) } :text :note 21 22 .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr 23 .eh_frame : { KEEP (*(.eh_frame)) } :text 24 25 .dynamic : { *(.dynamic) } :text :dynamic 26 27 .rodata : { *(.rodata*) } :text 28 .data : { 29 *(.data*) 30 *(.sdata*) 31 *(.got.plt) *(.got) 32 *(.gnu.linkonce.d.*) 33 *(.bss*) 34 *(.dynbss*) 35 *(.gnu.linkonce.b.*) 36 } 37 38 .altinstructions : { *(.altinstructions) } 39 .altinstr_replacement : { *(.altinstr_replacement) } 40 41 /* 42 * Align the actual code well away from the non-instruction data. 43 * This is the best thing for the I-cache. 44 */ 45 . = ALIGN(0x100); 46 47 .text : { *(.text*) } :text =0x90909090 48} 49 50/* 51 * Very old versions of ld do not recognize this name token; use the constant. 52 */ 53#define PT_GNU_EH_FRAME 0x6474e550 54 55/* 56 * We must supply the ELF program headers explicitly to get just one 57 * PT_LOAD segment, and set the flags explicitly to make segments read-only. 58 */ 59PHDRS 60{ 61 text PT_LOAD FLAGS(5) FILEHDR PHDRS; /* PF_R|PF_X */ 62 dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ 63 note PT_NOTE FLAGS(4); /* PF_R */ 64 eh_frame_hdr PT_GNU_EH_FRAME; 65} 66