coreboot/src/lib/program.ld
Aaron Durbin 4705546366 UPSTREAM: lib/program.ld: add .sdata sections
Ron reported some toolchain emitting .sdata sections. Let's ensure
we catch objects in those sections instead of getting dropped on the
floor for architectures which emit those sections.

BUG=None
BRANCH=None
TEST=None

Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/17180
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

Change-Id: I0680228f8424f99611914ef5fc31adf5d3891eee
Reviewed-on: https://chromium-review.googlesource.com/406945
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-11-03 14:44:10 -07:00

158 lines
3.5 KiB
Text

/*
* This file is part of the coreboot project.
*
* Copyright 2015 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <memlayout.h>
/* This file is included inside a SECTIONS block */
/* First we place the code and read only data (typically const declared).
* This could theoretically be placed in rom.
* The '.' in '.text . : {' is actually significant to prevent missing some
* SoC's entry points due to artificial alignment restrictions, see
* https://sourceware.org/binutils/docs/ld/Output-Section-Address.html
*/
.text . : {
_program = .;
_text = .;
/*
* The .rom.* sections are to acommodate x86 romstage. romcc as well
* as the assembly files put their text and data in these sections.
*/
*(.rom.text);
*(.rom.data);
*(.text._start);
*(.text.stage_entry);
KEEP(*(.id));
*(.text);
*(.text.*);
#if ENV_RAMSTAGE || ENV_ROMSTAGE || ENV_POSTCAR
. = ALIGN(ARCH_POINTER_ALIGN_SIZE);
_cbmem_init_hooks = .;
KEEP(*(.rodata.cbmem_init_hooks));
_ecbmem_init_hooks = .;
#endif
. = ALIGN(ARCH_POINTER_ALIGN_SIZE);
_rsbe_init_begin = .;
KEEP(*(.rsbe_init));
_ersbe_init_begin = .;
#if ENV_RAMSTAGE
. = ALIGN(ARCH_POINTER_ALIGN_SIZE);
_pci_drivers = .;
KEEP(*(.rodata.pci_driver));
_epci_drivers = .;
. = ALIGN(ARCH_POINTER_ALIGN_SIZE);
_cpu_drivers = .;
KEEP(*(.rodata.cpu_driver));
_ecpu_drivers = .;
#endif
. = ALIGN(ARCH_POINTER_ALIGN_SIZE);
*(.rodata);
*(.rodata.*);
. = ALIGN(ARCH_POINTER_ALIGN_SIZE);
_etext = .;
} : to_load
#if ENV_RAMSTAGE && IS_ENABLED(CONFIG_COVERAGE)
.ctors . : {
. = ALIGN(0x100);
__CTOR_LIST__ = .;
KEEP(*(.ctors));
LONG(0);
LONG(0);
__CTOR_END__ = .;
}
#endif
/* Include data, bss, and heap in that order. Not defined for all stages. */
#if ARCH_STAGE_HAS_DATA_SECTION
.data . : {
. = ALIGN(ARCH_CACHELINE_ALIGN_SIZE);
_data = .;
/*
* The postcar phase uses a stack value that is located in the relocatable
* module section. While the postcar stage could be linked like smm and
* other rmodules the postcar stage needs similar semantics of the more
* traditional stages in the coreboot infrastructure. Therefore it's easier
* to specialize this case.
*/
#if ENV_RMODULE || ENV_POSTCAR
_rmodule_params = .;
KEEP(*(.module_parameters));
_ermodule_params = .;
#endif
*(.data);
*(.data.*);
*(.sdata);
*(.sdata.*);
#ifdef __PRE_RAM__
PROVIDE(_preram_cbmem_console = .);
PROVIDE(_epreram_cbmem_console = _preram_cbmem_console);
#elif ENV_RAMSTAGE
. = ALIGN(ARCH_POINTER_ALIGN_SIZE);
_bs_init_begin = .;
KEEP(*(.bs_init));
LONG(0);
LONG(0);
_ebs_init_begin = .;
#endif
. = ALIGN(ARCH_POINTER_ALIGN_SIZE);
_edata = .;
}
#endif
#if ARCH_STAGE_HAS_BSS_SECTION
.bss . : {
. = ALIGN(ARCH_POINTER_ALIGN_SIZE);
_bss = .;
*(.bss)
*(.bss.*)
*(.sbss)
*(.sbss.*)
. = ALIGN(ARCH_POINTER_ALIGN_SIZE);
_ebss = .;
}
#endif
#if ARCH_STAGE_HAS_HEAP_SECTION
.heap . : {
. = ALIGN(ARCH_POINTER_ALIGN_SIZE);
_heap = .;
. += (ENV_RMODULE ? __heap_size : CONFIG_HEAP_SIZE);
. = ALIGN(ARCH_POINTER_ALIGN_SIZE);
_eheap = .;
}
#endif
_eprogram = .;
/* Discard the sections we don't need/want */
zeroptr = 0;
/DISCARD/ : {
*(.comment)
*(.comment.*)
*(.note)
*(.note.*)
*(.eh_frame);
}