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