ldscript.mips.cfe revision 183815 
1/*-
2 * Copyright (c) 2001, 2004, 2008, Juniper Networks, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the Juniper Networks, Inc. nor the names of its
14 *    contributors may be used to endorse or promote products derived from
15 *    this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY JUNIPER NETWORKS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL JUNIPER NETWORKS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *	JNPR: ldscript.mips,v 1.3 2006/10/11 06:12:04
30 * $FreeBSD: head/sys/conf/ldscript.mips.cfe 183815 2008-10-13 06:07:58Z bms $
31 */
32
33/*
34 * This linker script is needed to build a kernel for use by Broadcom CFE
35 * when loaded over TFTP; its ELF loader does not support backwards seek
36 * on network I/O streams.
37 * Furthermore, CFE will only load PT_LOAD segments, therefore the dynamic
38 * sections must be placed in their own segment.
39 */
40
41OUTPUT_FORMAT("elf32-tradbigmips", "elf32-tradbigmips", 
42		"elf32-tradlittlemips")
43
44OUTPUT_ARCH(mips)
45ENTRY(_start)
46SEARCH_DIR(/usr/lib);
47/* Do we need any of these for elf?
48   __DYNAMIC = 0;
49PROVIDE (_DYNAMIC = 0);
50*/
51
52PHDRS
53{
54 headers PT_PHDR FILEHDR PHDRS ;
55 interp PT_INTERP ;
56 text PT_LOAD ;
57 dynamic PT_LOAD ;
58 data PT_LOAD ;
59}
60
61SECTIONS
62{
63  /* Read-only sections, merged into text segment: */
64  . = 0x80100000 ;
65  .interp     : { *(.interp) 	} :interp
66  .hash          : { *(.hash)		} :text
67  .dynsym        : { *(.dynsym)		}
68  .dynstr        : { *(.dynstr)		}
69  .gnu.version   : { *(.gnu.version)	}
70  .gnu.version_d   : { *(.gnu.version_d)	}
71  .gnu.version_r   : { *(.gnu.version_r)	}
72  .rel.init      : { *(.rel.init)	}
73  .rela.init     : { *(.rela.init)	}
74  .rel.text      :
75    {
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100  .rel.data      :
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106  .rela.data     :
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114  .rel.dtors     : { *(.rel.dtors)	}
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116  .rel.got       : { *(.rel.got)		}
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168      *(.rel.bss)
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172  .rela.bss      : 
173    { 
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176      *(.rela.gnu.linkonce.b.*)
177    }
178  .rel.plt       : { *(.rel.plt)		}
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180  .init          : 
181  { 
182    KEEP (*(.init))
183  } :text =0x1000000
184  .text      :
185  {
186    *(.trap)
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190    /* .gnu.warning sections are handled specially by elf32.em.  */
191    *(.gnu.warning)
192    *(.gnu.linkonce.t.*)
193  } =0x1000000
194  .fini      :
195  {
196    KEEP (*(.fini))
197  } =0x1000000
198  PROVIDE (__etext = .);
199  PROVIDE (_etext = .);
200  PROVIDE (etext = .);
201  .rodata   : { *(.rodata) *(.rodata.*) *(.gnu.linkonce.r.*) }
202  .rodata1   : { *(.rodata1) }
203  .reginfo : { *(.reginfo) }
204  .sdata2   : { *(.sdata2) *(.sdata2.*) *(.gnu.linkonce.s2.*) }
205  .sbss2   : { *(.sbss2) *(.sbss2.*) *(.gnu.linkonce.sb2.*) }
206  . = ALIGN(0x2000) + (. & (0x2000 - 1));
207  .data    :
208  {
209    *(.data)
210    *(.data.*)
211    *(.gnu.linkonce.d.*)
212    SORT(CONSTRUCTORS)
213  } :data
214  .data1   : { *(.data1) }
215  .eh_frame : { KEEP (*(.eh_frame)) }
216  .gcc_except_table : { *(.gcc_except_table) }
217  .ctors   : 
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221       first.  Because this is a wildcard, it
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228    KEEP (*crtbegin.o(.ctors))
229    /* We don't want to include the .ctor section from
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231       The .ctor section from the crtend file contains the
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233    KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors))
234    KEEP (*(SORT(.ctors.*)))
235    KEEP (*(.ctors))
236  }
237   .dtors         :
238  {
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241    KEEP (*(SORT(.dtors.*)))
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243  }
244  .plt      : { *(.plt)	}
245  _gp = ALIGN(16) + 0x7ff0;
246  .got		  : { *(.got.plt) *(.got) }
247  .dynamic       : { *(.dynamic) } :dynamic
248  /* We want the small data sections together, so single-instruction offsets
249     can access them all, and initialized data all before uninitialized, so
250     we can shorten the on-disk segment size.  */
251  .sdata     : 
252  {
253    *(.sdata) 
254    *(.sdata.*)
255    *(.gnu.linkonce.s.*)
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258  PROVIDE (edata = .);
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260  .sbss      :
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267    *(.gnu.linkonce.sb.*)
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270    PROVIDE (___sbss_end = .);
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272  .bss       :
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274   *(.dynbss)
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277   *(.gnu.linkonce.b.*)
278   *(COMMON)
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280      _end.  Align after .bss to ensure correct alignment even if the
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282   . = ALIGN(64 / 8);
283  }
284  . = ALIGN(64 / 8);
285  _end = .;
286  PROVIDE (end = .);
287  /* Stabs debugging sections.  */
288  .stab 0 : { *(.stab) }
289  .stabstr 0 : { *(.stabstr) }
290  .stab.excl 0 : { *(.stab.excl) }
291  .stab.exclstr 0 : { *(.stab.exclstr) }
292  .stab.index 0 : { *(.stab.index) }
293  .stab.indexstr 0 : { *(.stab.indexstr) }
294  .comment 0 : { *(.comment) }
295  /* DWARF debug sections.
296     Symbols in the DWARF debugging sections are relative to the beginning
297     of the section so we begin them at 0.  */
298  /* DWARF 1 */
299  .debug          0 : { *(.debug) }
300  .line           0 : { *(.line) }
301  /* GNU DWARF 1 extensions */
302  .debug_srcinfo  0 : { *(.debug_srcinfo) }
303  .debug_sfnames  0 : { *(.debug_sfnames) }
304  /* DWARF 1.1 and DWARF 2 */
305  .debug_aranges  0 : { *(.debug_aranges) }
306  .debug_pubnames 0 : { *(.debug_pubnames) }
307  /* DWARF 2 */
308  .debug_info     0 : { *(.debug_info) *(.gnu.linkonce.wi.*) }
309  .debug_abbrev   0 : { *(.debug_abbrev) }
310  .debug_line     0 : { *(.debug_line) }
311  .debug_frame    0 : { *(.debug_frame) }
312  .debug_str      0 : { *(.debug_str) }
313  .debug_loc      0 : { *(.debug_loc) }
314  .debug_macinfo  0 : { *(.debug_macinfo) }
315  /* SGI/MIPS DWARF 2 extensions */
316  .debug_weaknames 0 : { *(.debug_weaknames) }
317  .debug_funcnames 0 : { *(.debug_funcnames) }
318  .debug_typenames 0 : { *(.debug_typenames) }
319  .debug_varnames  0 : { *(.debug_varnames) }
320  /* These must appear regardless of  .  */
321}
322