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
8 SECTIONS
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 */
59 PHDRS
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 }