mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-13 16:36:53 +07:00
5a45da02cf
* DWARF unwinder related + Force DWARF2 compliant .debug_frame (gcc 4.8 defaults to DWARF4 which kernel unwinder can't grok). + Discard the additional .eh_frame generated + Discard the dwarf4 debug info generated by -gdwarf-2 for normal no debug case * 4.8 already uses arc600 multilibs for -mno-mpy * switch to using uclibc compiler (to get -mmedium-calls and -mno-sdata) and also since buildroot can only use 1 toolchain Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
172 lines
3.5 KiB
ArmAsm
172 lines
3.5 KiB
ArmAsm
/*
|
|
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <asm-generic/vmlinux.lds.h>
|
|
#include <asm/cache.h>
|
|
#include <asm/page.h>
|
|
#include <asm/thread_info.h>
|
|
|
|
OUTPUT_ARCH(arc)
|
|
ENTRY(_stext)
|
|
|
|
#ifdef CONFIG_CPU_BIG_ENDIAN
|
|
jiffies = jiffies_64 + 4;
|
|
#else
|
|
jiffies = jiffies_64;
|
|
#endif
|
|
|
|
SECTIONS
|
|
{
|
|
/*
|
|
* ICCM starts at 0x8000_0000. So if kernel is relocated to some other
|
|
* address, make sure peripheral at 0x8z doesn't clash with ICCM
|
|
* Essentially vector is also in ICCM.
|
|
*/
|
|
|
|
. = CONFIG_LINUX_LINK_BASE;
|
|
|
|
_int_vec_base_lds = .;
|
|
.vector : {
|
|
*(.vector)
|
|
. = ALIGN(PAGE_SIZE);
|
|
}
|
|
|
|
#ifdef CONFIG_ARC_HAS_ICCM
|
|
.text.arcfp : {
|
|
*(.text.arcfp)
|
|
. = ALIGN(CONFIG_ARC_ICCM_SZ * 1024);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* The reason for having a seperate subsection .init.ramfs is to
|
|
* prevent objump from including it in kernel dumps
|
|
*
|
|
* Reason for having .init.ramfs above .init is to make sure that the
|
|
* binary blob is tucked away to one side, reducing the displacement
|
|
* between .init.text and .text, avoiding any possible relocation
|
|
* errors because of calls from .init.text to .text
|
|
* Yes such calls do exist. e.g.
|
|
* decompress_inflate.c:gunzip( ) -> zlib_inflate_workspace( )
|
|
*/
|
|
|
|
__init_begin = .;
|
|
|
|
.init.ramfs : { INIT_RAM_FS }
|
|
|
|
. = ALIGN(PAGE_SIZE);
|
|
_stext = .;
|
|
|
|
HEAD_TEXT_SECTION
|
|
INIT_TEXT_SECTION(L1_CACHE_BYTES)
|
|
|
|
/* INIT_DATA_SECTION open-coded: special INIT_RAM_FS handling */
|
|
.init.data : {
|
|
INIT_DATA
|
|
INIT_SETUP(L1_CACHE_BYTES)
|
|
INIT_CALLS
|
|
CON_INITCALL
|
|
SECURITY_INITCALL
|
|
}
|
|
|
|
.init.arch.info : {
|
|
__arch_info_begin = .;
|
|
*(.arch.info.init)
|
|
__arch_info_end = .;
|
|
}
|
|
|
|
PERCPU_SECTION(L1_CACHE_BYTES)
|
|
|
|
/*
|
|
* .exit.text is discard at runtime, not link time, to deal with
|
|
* references from .debug_frame
|
|
* It will be init freed, being inside [__init_start : __init_end]
|
|
*/
|
|
.exit.text : { EXIT_TEXT }
|
|
.exit.data : { EXIT_DATA }
|
|
|
|
. = ALIGN(PAGE_SIZE);
|
|
__init_end = .;
|
|
|
|
.text : {
|
|
_text = .;
|
|
TEXT_TEXT
|
|
SCHED_TEXT
|
|
LOCK_TEXT
|
|
KPROBES_TEXT
|
|
*(.fixup)
|
|
*(.gnu.warning)
|
|
}
|
|
EXCEPTION_TABLE(L1_CACHE_BYTES)
|
|
_etext = .;
|
|
|
|
_sdata = .;
|
|
RO_DATA_SECTION(PAGE_SIZE)
|
|
|
|
/*
|
|
* 1. this is .data essentially
|
|
* 2. THREAD_SIZE for init.task, must be kernel-stk sz aligned
|
|
*/
|
|
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
|
|
|
|
_edata = .;
|
|
|
|
BSS_SECTION(0, 0, 0)
|
|
|
|
#ifdef CONFIG_ARC_DW2_UNWIND
|
|
. = ALIGN(PAGE_SIZE);
|
|
.debug_frame : {
|
|
__start_unwind = .;
|
|
*(.debug_frame)
|
|
__end_unwind = .;
|
|
}
|
|
/*
|
|
* gcc 4.8 generates this for -fasynchonous-unwind-tables,
|
|
* while we still use the .debug_frame based unwinder
|
|
*/
|
|
/DISCARD/ : { *(.eh_frame) }
|
|
#else
|
|
/DISCARD/ : { *(.debug_frame) }
|
|
#endif
|
|
|
|
NOTES
|
|
|
|
. = ALIGN(PAGE_SIZE);
|
|
_end = . ;
|
|
|
|
STABS_DEBUG
|
|
DISCARDS
|
|
|
|
.arcextmap 0 : {
|
|
*(.gnu.linkonce.arcextmap.*)
|
|
*(.arcextmap.*)
|
|
}
|
|
|
|
#ifndef CONFIG_DEBUG_INFO
|
|
/* open-coded because we need .debug_frame seperately for unwinding */
|
|
/DISCARD/ : { *(.debug_aranges) }
|
|
/DISCARD/ : { *(.debug_pubnames) }
|
|
/DISCARD/ : { *(.debug_info) }
|
|
/DISCARD/ : { *(.debug_abbrev) }
|
|
/DISCARD/ : { *(.debug_line) }
|
|
/DISCARD/ : { *(.debug_str) }
|
|
/DISCARD/ : { *(.debug_loc) }
|
|
/DISCARD/ : { *(.debug_macinfo) }
|
|
/DISCARD/ : { *(.debug_ranges) }
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARC_HAS_DCCM
|
|
. = CONFIG_ARC_DCCM_BASE;
|
|
__arc_dccm_base = .;
|
|
.data.arcfp : {
|
|
*(.data.arcfp)
|
|
}
|
|
. = ALIGN(CONFIG_ARC_DCCM_SZ * 1024);
|
|
#endif
|
|
}
|