cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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vmlinux.lds.S (3933B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*    Kernel link layout for various "sections"
      3 *
      4 *    Copyright (C) 1999-2003 Matthew Wilcox <willy at parisc-linux.org>
      5 *    Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org>
      6 *    Copyright (C) 2000 John Marvin <jsm at parisc-linux.org>
      7 *    Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
      8 *    Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
      9 *    Copyright (C) 2003 James Bottomley <jejb with parisc-linux.org>
     10 *    Copyright (C) 2006-2013 Helge Deller <deller@gmx.de>
     11 */
     12
     13/*
     14 * Put page table entries (swapper_pg_dir) as the first thing in .bss. This
     15 * will ensure that it has .bss alignment (PAGE_SIZE).
     16 */
     17#define BSS_FIRST_SECTIONS	*(.data..vm0.pmd) \
     18				*(.data..vm0.pgd) \
     19				*(.data..vm0.pte)
     20
     21#define CC_USING_PATCHABLE_FUNCTION_ENTRY
     22#define RO_EXCEPTION_TABLE_ALIGN	8
     23
     24#include <asm-generic/vmlinux.lds.h>
     25
     26/* needed for the processor specific cache alignment size */	
     27#include <asm/cache.h>
     28#include <asm/page.h>
     29#include <asm/asm-offsets.h>
     30#include <asm/thread_info.h>
     31	
     32/* ld script to make hppa Linux kernel */
     33#ifndef CONFIG_64BIT
     34OUTPUT_FORMAT("elf32-hppa-linux")
     35OUTPUT_ARCH(hppa)
     36#else
     37OUTPUT_FORMAT("elf64-hppa-linux")
     38OUTPUT_ARCH(hppa:hppa2.0w)
     39#endif
     40
     41#define EXIT_TEXT_SECTIONS()	.exit.text : { EXIT_TEXT }
     42#if !defined(CONFIG_64BIT) || defined(CONFIG_MLONGCALLS)
     43#define MLONGCALL_KEEP(x)
     44#define MLONGCALL_DISCARD(x)	x
     45#else
     46#define MLONGCALL_KEEP(x)	x
     47#define MLONGCALL_DISCARD(x)
     48#endif
     49
     50ENTRY(parisc_kernel_start)
     51#ifndef CONFIG_64BIT
     52jiffies = jiffies_64 + 4;
     53#else
     54jiffies = jiffies_64;
     55#endif
     56SECTIONS
     57{
     58	. = KERNEL_BINARY_TEXT_START;
     59
     60	__init_begin = .;
     61	HEAD_TEXT_SECTION
     62	MLONGCALL_DISCARD(INIT_TEXT_SECTION(8))
     63
     64	. = ALIGN(PAGE_SIZE);
     65	INIT_DATA_SECTION(PAGE_SIZE)
     66	MLONGCALL_DISCARD(EXIT_TEXT_SECTIONS())
     67	.exit.data :
     68	{
     69		EXIT_DATA
     70	}
     71	PERCPU_SECTION(8)
     72	. = ALIGN(4);
     73	.altinstructions : {
     74		__alt_instructions = .;
     75		*(.altinstructions)
     76		__alt_instructions_end = .;
     77	}
     78	. = ALIGN(HUGEPAGE_SIZE);
     79	__init_end = .;
     80	/* freed after init ends here */
     81
     82	_text = .;		/* Text and read-only data */
     83	_stext = .;
     84	MLONGCALL_KEEP(INIT_TEXT_SECTION(8))
     85	.text ALIGN(PAGE_SIZE) : {
     86		TEXT_TEXT
     87		LOCK_TEXT
     88		SCHED_TEXT
     89		CPUIDLE_TEXT
     90		KPROBES_TEXT
     91		IRQENTRY_TEXT
     92		SOFTIRQENTRY_TEXT
     93		*(.text.do_softirq)
     94		*(.text.sys_exit)
     95		*(.text.do_sigaltstack)
     96		*(.text.do_fork)
     97		*(.text.div)
     98		*($$*)			/* millicode routines */
     99		*(.text.*)
    100		*(.fixup)
    101		*(.lock.text)		/* out-of-line lock text */
    102		*(.gnu.warning)
    103	}
    104	MLONGCALL_KEEP(EXIT_TEXT_SECTIONS())
    105	. = ALIGN(PAGE_SIZE);
    106	_etext = .;
    107	/* End of text section */
    108
    109	/* Start of data section */
    110	_sdata = .;
    111
    112	/* Architecturally we need to keep __gp below 0x1000000 and thus
    113	 * in front of RO_DATA() which stores lots of tracepoint
    114	 * and ftrace symbols. */
    115#ifdef CONFIG_64BIT
    116	. = ALIGN(16);
    117	/* Linkage tables */
    118	.opd : {
    119		__start_opd = .;
    120		*(.opd)
    121		__end_opd = .;
    122	} PROVIDE (__gp = .);
    123	.plt : {
    124		*(.plt)
    125	}
    126	.dlt : {
    127		*(.dlt)
    128	}
    129#endif
    130
    131	RO_DATA(8)
    132
    133	/* unwind info */
    134	.PARISC.unwind : {
    135		__start___unwind = .;
    136		*(.PARISC.unwind)
    137		__stop___unwind = .;
    138	}
    139
    140	/* writeable */
    141	/* Make sure this is page aligned so
    142	 * that we can properly leave these
    143	 * as writable
    144	 */
    145	. = ALIGN(HUGEPAGE_SIZE);
    146	data_start = .;
    147
    148	/* Data */
    149	RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, PAGE_SIZE)
    150
    151	/* PA-RISC locks requires 16-byte alignment */
    152	. = ALIGN(16);
    153	.data..lock_aligned : {
    154		*(.data..lock_aligned)
    155	}
    156
    157	/* End of data section */
    158	_edata = .;
    159
    160	/* BSS */
    161	BSS_SECTION(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE)
    162
    163	. = ALIGN(HUGEPAGE_SIZE);
    164	_end = . ;
    165
    166	STABS_DEBUG
    167	ELF_DETAILS
    168	.note 0 : { *(.note) }
    169
    170	/* Sections to be discarded */
    171	DISCARDS
    172	/DISCARD/ : {
    173#ifdef CONFIG_64BIT
    174		/* temporary hack until binutils is fixed to not emit these
    175	 	 * for static binaries
    176		 */
    177		*(.interp)
    178		*(.dynsym)
    179		*(.dynstr)
    180		*(.dynamic)
    181		*(.hash)
    182		*(.gnu.hash)
    183#endif
    184	}
    185}