cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

vdso-layout.lds.S (1624B)

      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}