113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
/*
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* Copyright (c) 2013-2014, Wind River Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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DESCRIPTION
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Platform independent, commonly used macros and defines related to linker script.
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This file may be included by:
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- Linker script files: for linker section declarations
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- C files: for external declaration of address or size of linker section
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- Assembly files: for external declaration of address or size of linker section
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*/
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#ifndef _LINKERDEFS_H
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#define _LINKERDEFS_H
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#include <toolchain.h>
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#include <sections.h>
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/* include platform dependent linker-defs */
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#ifdef VXMICRO_ARCH_x86
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#include <nanokernel/x86/linker-defs-arch.h>
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#elif defined(VXMICRO_ARCH_arm)
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/* Nothing yet to include */
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#elif defined(VXMICRO_ARCH_arc)
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/* Nothing yet to include */
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#else
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#error Arch not supported.
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#endif
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#ifdef _LINKER
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#ifdef VXMICRO_ARCH_x86 /* LINKER FILES: defines used by linker script */
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/* Should be moved to linker-common-defs.h */
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#if defined(CONFIG_XIP)
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#define ROMABLE_REGION ROM
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#else
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#define ROMABLE_REGION RAM
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#endif
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#endif
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/*
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* If image is loaded via kexec Linux system call, then program
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* headers need to be page aligned.
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* This can be done by section page aligning.
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*/
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#ifdef CONFIG_BOOTLOADER_KEXEC
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#define KEXEC_PGALIGN_PAD(x) . = ALIGN(x);
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#else
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#define KEXEC_PGALIGN_PAD(x)
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#endif
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#elif defined(_ASMLANGUAGE)
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/* Assembly FILES: declaration defined by the linker script */
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GDATA(__bss_start)
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GDATA(__bss_num_words)
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#ifdef CONFIG_XIP
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GDATA(__data_rom_start)
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GDATA(__data_ram_start)
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GDATA(__data_num_words)
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#endif
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#else
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#include <stdint.h>
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extern char __bss_start[];
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extern int __bss_num_words[];
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#ifdef CONFIG_XIP
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extern char __data_rom_start[];
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extern char __data_ram_start[];
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extern int __data_num_words[];
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#endif
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/* C FILES: declaration defined by the linker script */
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#ifdef VXMICRO_ARCH_x86
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#include <cputype.h>
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#endif /* VXMICRO_ARCH_x86 */
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/* end address of image. */
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extern char _end[];
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#define _END_VPAGE (VIRT_ADDR) _end
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#endif /* ! _ASMLANGUAGE */
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#endif /* _LINKERDEFS_H */
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