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// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
/*
* Copyright 2013-2019 IBM Corp.
*/
#include <config.h>
#include <mem-map.h>
/* Debug sections from binutils `ld --verbose` */
#define DEBUG_SECTIONS \
/* Stabs debugging sections. */ \
.stab 0 : { *(.stab) } \
.stabstr 0 : { *(.stabstr) } \
.stab.excl 0 : { *(.stab.excl) } \
.stab.exclstr 0 : { *(.stab.exclstr) } \
.stab.index 0 : { *(.stab.index) } \
.stab.indexstr 0 : { *(.stab.indexstr) } \
.comment 0 : { *(.comment) } \
/* DWARF debug sections. \
Symbols in the DWARF debugging sections are relative to the beginning \
of the section so we begin them at 0. */ \
/* DWARF 1 */ \
.debug 0 : { *(.debug) } \
.line 0 : { *(.line) } \
/* GNU DWARF 1 extensions */ \
.debug_srcinfo 0 : { *(.debug_srcinfo) } \
.debug_sfnames 0 : { *(.debug_sfnames) } \
/* DWARF 1.1 and DWARF 2 */ \
.debug_aranges 0 : { *(.debug_aranges) } \
.debug_pubnames 0 : { *(.debug_pubnames) } \
/* DWARF 2 */ \
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } \
.debug_abbrev 0 : { *(.debug_abbrev) } \
.debug_line 0 : { *(.debug_line .debug_line.* .debug_line_end ) } \
.debug_frame 0 : { *(.debug_frame) } \
.debug_str 0 : { *(.debug_str) } \
.debug_loc 0 : { *(.debug_loc) } \
.debug_macinfo 0 : { *(.debug_macinfo) } \
/* SGI/MIPS DWARF 2 extensions */ \
.debug_weaknames 0 : { *(.debug_weaknames) } \
.debug_funcnames 0 : { *(.debug_funcnames) } \
.debug_typenames 0 : { *(.debug_typenames) } \
.debug_varnames 0 : { *(.debug_varnames) } \
/* DWARF 3 */ \
.debug_pubtypes 0 : { *(.debug_pubtypes) } \
.debug_ranges 0 : { *(.debug_ranges) } \
/* DWARF Extension. */ \
.debug_macro 0 : { *(.debug_macro) } \
.debug_addr 0 : { *(.debug_addr) }
ENTRY(boot_entry);
SECTIONS
{
_start = .;
. = 0;
.head : {
KEEP(*(.head))
}
. = NACA_OFF;
.naca : {
KEEP(*(.naca.data))
}
. = SPIRA_OFF;
.spira : {
KEEP(*(.spira.data))
}
. = SPIRAH_OFF;
.spirah : {
KEEP(*(.spirah.data))
}
_head_end = .;
. = ALIGN(PAGE_SIZE);
/*
* The following sections are read-write at runtime. We need
* to skip over them when checksumming the skiboot images
* before a fast-reboot.
*/
. = PROC_DUMP_AREA_OFF;
.procdump : {
KEEP(*(.procdump.data))
}
. = PROCIN_OFF;
.procin.data : {
KEEP(*(.procin.data))
}
. = MDST_TABLE_OFF;
.mdst : {
KEEP(*(.mdst.data))
}
. = MDDT_TABLE_OFF;
.mddt : {
KEEP(*(.mddt.data))
}
. = CPU_CTL_OFF;
.cpuctrl : {
KEEP(*(.cpuctrl.data))
}
/* ...and back to RO */
. = ALIGN(PAGE_SIZE);
_stext = .;
.text : {
*(.text*)
*(.sfpr .glink)
}
_etext = .;
. = ALIGN(PAGE_SIZE);
.rodata : {
__rodata_start = .;
*(.rodata .rodata.*)
__rodata_end = .;
}
. = ALIGN(0x10);
.trap_table : {
__trap_table_start = .;
KEEP(*(.trap_table))
__trap_table_end = .;
}
. = ALIGN(0x10);
.init : {
__ctors_start = .;
KEEP(*(.ctors*))
KEEP(*(SORT(.init_array.*)))
KEEP(*(.init_array))
__ctors_end = .;
}
. = ALIGN(0x10);
.opd : {
*(.opd)
}
. = ALIGN(0x100);
.got : {
__toc_start = . + 0x8000;
*(.got)
*(.toc)
}
. = ALIGN(0x10);
.opal_table : {
__opal_table_start = .;
KEEP(*(.opal_table))
__opal_table_end = .;
}
.platforms : {
__platforms_start = .;
KEEP(*(.platforms))
__platforms_end = .;
}
/* Relocations */
. = ALIGN(0x10);
.dynamic : {
__dynamic_start = .;
*(.dynamic)
__dynamic_end = .;
}
. = ALIGN(0x10);
.rela.dyn : {
__rela_dyn_start = .;
*(.rela*)
__rela_dyn_end = .;
}
.hash : { *(.hash) }
.gnu.hash : { *(.gnu.hash) }
.gnu.version : { *(.gnu.version) }
.gnu.version_d : { *(.gnu.version_d) }
.gnu.version_r : { *(.gnu.version_r) }
. = ALIGN(0x10);
.sym_map : {
__sym_map_start = . ;
KEEP(*(.sym_map))
__sym_map_end = . ;
}
/*
* Memory above this point should be un-changing after the OS
* boots, and is verified with a checksum upon fast reboot.
*/
_romem_end = .;
. = ALIGN(PAGE_SIZE);
_sdata = .;
.data : {
/*
* A couple of things that need to be 4K aligned and
* to reside in their own pages for the sake of TCE
* mappings, so use PAGE_SIZE alignment.
*/
. = ALIGN(PAGE_SIZE);
*(.data.memcons);
. = ALIGN(PAGE_SIZE);
*(.data.boot_trace);
. = ALIGN(PAGE_SIZE);
*(.data*)
*(.force.data)
*(.toc1)
*(.branch_lt)
}
_edata = .;
/* We locate the BSS at 5M to leave room for the symbol map */
. = 0x500000;
_sbss = .;
.bss : {
*(.dynbss)
*(.bss*)
}
. = ALIGN(PAGE_SIZE);
_ebss = .;
_end = .;
ASSERT((HEAP_BASE - SKIBOOT_BASE) >= _end, "Heap collision with image")
/* Optional kernel image */
. = ALIGN(PAGE_SIZE);
.builtin_kernel : {
__builtin_kernel_start = .;
KEEP(*(.builtin_kernel))
__builtin_kernel_end = .;
}
DEBUG_SECTIONS
/* Discards */
/DISCARD/ : {
*(.note.GNU-stack)
*(.comment)
*(.eh_frame)
*(.interp)
*(.fini_array.*)
*(.dynsym)
*(.dynstr)
*(.plt)
*(.iplt)
}
}
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