freebsd-skq/sys/conf/ldscript.mips.cfe
neel 6fc9b03b75 Use KERNLOADADDR instead of hardcoded address. This is required to be able to
build the trampoline kernel that has symbol/string tables embedded within it.
2010-02-22 01:48:38 +00:00

322 lines
8.9 KiB
Plaintext

/*-
* Copyright (c) 2001, 2004, 2008, Juniper Networks, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Juniper Networks, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY JUNIPER NETWORKS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL JUNIPER NETWORKS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* JNPR: ldscript.mips,v 1.3 2006/10/11 06:12:04
* $FreeBSD$
*/
/*
* This linker script is needed to build a kernel for use by Broadcom CFE
* when loaded over TFTP; its ELF loader does not support backwards seek
* on network I/O streams.
* Furthermore, CFE will only load PT_LOAD segments, therefore the dynamic
* sections must be placed in their own segment.
*/
OUTPUT_FORMAT("elf32-tradbigmips", "elf32-tradbigmips",
"elf32-tradlittlemips")
OUTPUT_ARCH(mips)
ENTRY(_start)
SEARCH_DIR(/usr/lib);
/* Do we need any of these for elf?
__DYNAMIC = 0;
PROVIDE (_DYNAMIC = 0);
*/
PHDRS
{
headers PT_PHDR FILEHDR PHDRS ;
interp PT_INTERP ;
text PT_LOAD ;
dynamic PT_LOAD ;
data PT_LOAD ;
}
SECTIONS
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.rel.plt : { *(.rel.plt) }
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.init :
{
KEEP (*(.init))
} :text =0x1000000
.text :
{
*(.trap)
*(.text)
*(.text.*)
*(.stub)
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.gnu.linkonce.t.*)
} =0x1000000
.fini :
{
KEEP (*(.fini))
} =0x1000000
PROVIDE (__etext = .);
PROVIDE (_etext = .);
PROVIDE (etext = .);
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. = ALIGN(0x2000) + (. & (0x2000 - 1));
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{
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*(.data.*)
*(.gnu.linkonce.d.*)
SORT(CONSTRUCTORS)
} :data
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/* gcc uses crtbegin.o to find the start of
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KEEP (*crtbegin.o(.ctors))
/* We don't want to include the .ctor section from
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KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
}
.dtors :
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KEEP (*crtbegin.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
}
.plt : { *(.plt) }
_gp = ALIGN(16) + 0x7ff0;
.got : { *(.got.plt) *(.got) }
.dynamic : { *(.dynamic) } :dynamic
/* We want the small data sections together, so single-instruction offsets
can access them all, and initialized data all before uninitialized, so
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*(.sdata)
*(.sdata.*)
*(.gnu.linkonce.s.*)
}
_edata = .;
PROVIDE (edata = .);
__bss_start = .;
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*(COMMON)
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_end = .;
PROVIDE (end = .);
/* Stabs debugging sections. */
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/* 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 */
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/* DWARF 1.1 and DWARF 2 */
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/* DWARF 2 */
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/* SGI/MIPS DWARF 2 extensions */
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/* These must appear regardless of . */
}