1232809Sjmallett/***********************license start***************
2232809Sjmallett * Copyright (c) 2003-2010  Cavium Inc. (support@cavium.com). All rights 
3232809Sjmallett * reserved.
4232809Sjmallett *
5232809Sjmallett *
6232809Sjmallett * Redistribution and use in source and binary forms, with or without
7232809Sjmallett * modification, are permitted provided that the following conditions are
8232809Sjmallett * met:
9232809Sjmallett *
10232809Sjmallett *   * Redistributions of source code must retain the above copyright
11232809Sjmallett *     notice, this list of conditions and the following disclaimer.
12232809Sjmallett *
13232809Sjmallett *   * Redistributions in binary form must reproduce the above
14232809Sjmallett *     copyright notice, this list of conditions and the following
15232809Sjmallett *     disclaimer in the documentation and/or other materials provided
16232809Sjmallett *     with the distribution.
17232809Sjmallett
18232809Sjmallett *   * Neither the name of Cavium Inc. nor the names of
19232809Sjmallett *     its contributors may be used to endorse or promote products
20232809Sjmallett *     derived from this software without specific prior written
21232809Sjmallett *     permission.  
22232809Sjmallett
23232809Sjmallett * This Software, including technical data, may be subject to U.S. export  control
24232809Sjmallett * laws, including the U.S. Export Administration Act and its  associated
25232809Sjmallett * regulations, and may be subject to export or import  regulations in other
26232809Sjmallett * countries. 
27232809Sjmallett
28232809Sjmallett * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" 
29232809Sjmallett * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
30232809Sjmallett * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
31232809Sjmallett * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
32232809Sjmallett * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
33232809Sjmallett * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
34232809Sjmallett * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
35232809Sjmallett * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
36232809Sjmallett * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE  RISK ARISING OUT OF USE OR
37232809Sjmallett * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
38232809Sjmallett ***********************license end**************************************/
39232809Sjmallett
40232809Sjmallett
41232809Sjmallett
42232809Sjmallett
43232809Sjmallett
44232809Sjmallett
45232809Sjmallett/*
46232809Sjmallett * This was created from a template supplied by GNU binutils.
47232809Sjmallett * Copyright (C) 2004 Cavium Inc.
48232809Sjmallett */
49232809Sjmallett 
50232809Sjmallett/**
51232809Sjmallett * @file
52232809Sjmallett * This linker script for use in building simple executive application to run
53232809Sjmallett * under Linux in userspace. The important difference from a standard Linux 
54232809Sjmallett * binary is the addition of the ".cvmx_shared" memory section. This script 
55232809Sjmallett * adds two symbols __cvmx_shared_start and __cvmx_sahred_end before and after
56232809Sjmallett * the CVMX_SHARED data. These are used by cvmx-app-init-linux.c to create a
57232809Sjmallett * shared region across all application processes.
58232809Sjmallett *
59232809Sjmallett * The original template for this files was:
60232809Sjmallett * ${OCTEON_ROOT}/tools/mips64-octeon-linux-gnu/lib/ldscripts/elf64btsmip.x
61232809Sjmallett */
62232809SjmallettOUTPUT_FORMAT("elf64-tradbigmips", "elf64-tradbigmips",
63232809Sjmallett	      "elf64-tradlittlemips")
64232809SjmallettOUTPUT_ARCH(mips)
65232809SjmallettENTRY(__start)
66232809SjmallettSEARCH_DIR("${OCTEON_ROOT}/tools/mips64-octeon-linux-gnu/lib");
67232809SjmallettSECTIONS
68232809Sjmallett{
69232809Sjmallett  /* Read-only sections, merged into text segment: */
70232809Sjmallett  PROVIDE (__executable_start = 0x120000000); . = 0x120000000 + SIZEOF_HEADERS;
71232809Sjmallett  .MIPS.options : { *(.MIPS.options) }
72232809Sjmallett  .note.gnu.build-id : { *(.note.gnu.build-id) }
73232809Sjmallett  .dynamic        : { *(.dynamic) }
74232809Sjmallett  .hash           : { *(.hash) }
75232809Sjmallett  .gnu.hash       : { *(.gnu.hash) }
76232809Sjmallett  .dynsym         : { *(.dynsym) }
77232809Sjmallett  .dynstr         : { *(.dynstr) }
78232809Sjmallett  .gnu.version    : { *(.gnu.version) }
79232809Sjmallett  .gnu.version_d  : { *(.gnu.version_d) }
80232809Sjmallett  .gnu.version_r  : { *(.gnu.version_r) }
81232809Sjmallett  .rel.init       : { *(.rel.init) }
82232809Sjmallett  .rela.init      : { *(.rela.init) }
83232809Sjmallett  .rel.text       : { *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) }
84232809Sjmallett  .rela.text      : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) }
85232809Sjmallett  .rel.fini       : { *(.rel.fini) }
86232809Sjmallett  .rela.fini      : { *(.rela.fini) }
87232809Sjmallett  .rel.rodata     : { *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) }
88232809Sjmallett  .rela.rodata    : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) }
89232809Sjmallett  .rel.data.rel.ro   : { *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*) }
90232809Sjmallett  .rela.data.rel.ro   : { *(.rela.data.rel.ro* .rela.gnu.linkonce.d.rel.ro.*) }
91232809Sjmallett  .rel.data       : { *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) }
92232809Sjmallett  .rela.data      : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) }
93232809Sjmallett  .rel.tdata	  : { *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) }
94232809Sjmallett  .rela.tdata	  : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) }
95232809Sjmallett  .rel.tbss	  : { *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) }
96232809Sjmallett  .rela.tbss	  : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) }
97232809Sjmallett  .rel.ctors      : { *(.rel.ctors) }
98232809Sjmallett  .rela.ctors     : { *(.rela.ctors) }
99232809Sjmallett  .rel.dtors      : { *(.rel.dtors) }
100232809Sjmallett  .rela.dtors     : { *(.rela.dtors) }
101232809Sjmallett  .rel.got        : { *(.rel.got) }
102232809Sjmallett  .rela.got       : { *(.rela.got) }
103232809Sjmallett  .rel.dyn        : { *(.rel.dyn) }
104232809Sjmallett  .rel.sdata      : { *(.rel.sdata .rel.sdata.* .rel.gnu.linkonce.s.*) }
105232809Sjmallett  .rela.sdata     : { *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*) }
106232809Sjmallett  .rel.sbss       : { *(.rel.sbss .rel.sbss.* .rel.gnu.linkonce.sb.*) }
107232809Sjmallett  .rela.sbss      : { *(.rela.sbss .rela.sbss.* .rela.gnu.linkonce.sb.*) }
108232809Sjmallett  .rel.sdata2     : { *(.rel.sdata2 .rel.sdata2.* .rel.gnu.linkonce.s2.*) }
109232809Sjmallett  .rela.sdata2    : { *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*) }
110232809Sjmallett  .rel.sbss2      : { *(.rel.sbss2 .rel.sbss2.* .rel.gnu.linkonce.sb2.*) }
111232809Sjmallett  .rela.sbss2     : { *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*) }
112232809Sjmallett  .rel.bss        : { *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) }
113232809Sjmallett  .rela.bss       : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) }
114232809Sjmallett  .rel.plt        : { *(.rel.plt) }
115232809Sjmallett  .rela.plt       : { *(.rela.plt) }
116232809Sjmallett  .init           :
117232809Sjmallett  {
118232809Sjmallett    KEEP (*(.init))
119232809Sjmallett  } =0
120232809Sjmallett  .plt            : { *(.plt) }
121232809Sjmallett  .text           :
122232809Sjmallett  {
123232809Sjmallett    _ftext = . ;
124232809Sjmallett    *(.text .stub .text.* .gnu.linkonce.t.*)
125232809Sjmallett    /* .gnu.warning sections are handled specially by elf32.em.  */
126232809Sjmallett    *(.gnu.warning)
127232809Sjmallett    *(.mips16.fn.*) *(.mips16.call.*)
128232809Sjmallett  } =0
129232809Sjmallett  .fini           :
130232809Sjmallett  {
131232809Sjmallett    KEEP (*(.fini))
132232809Sjmallett  } =0
133232809Sjmallett  PROVIDE (__etext = .);
134232809Sjmallett  PROVIDE (_etext = .);
135232809Sjmallett  PROVIDE (etext = .);
136232809Sjmallett  .rodata         : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
137232809Sjmallett  .rodata1        : { *(.rodata1) }
138232809Sjmallett  .sdata2         :
139232809Sjmallett  {
140232809Sjmallett    *(.sdata2 .sdata2.* .gnu.linkonce.s2.*)
141232809Sjmallett  }
142232809Sjmallett  .sbss2          : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) }
143232809Sjmallett  .eh_frame_hdr : { *(.eh_frame_hdr) }
144232809Sjmallett  .eh_frame       : ONLY_IF_RO { KEEP (*(.eh_frame)) }
145232809Sjmallett  .gcc_except_table   : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) }
146232809Sjmallett  /* Adjust the address for the data segment.  We want to adjust up to
147232809Sjmallett     the same address within the page on the next page up.  */
148232809Sjmallett  . = ALIGN (CONSTANT (MAXPAGESIZE)) - ((CONSTANT (MAXPAGESIZE) - .) & (CONSTANT (MAXPAGESIZE) - 1)); . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE));
149232809Sjmallett  /* Exception handling  */
150232809Sjmallett  .eh_frame       : ONLY_IF_RW { KEEP (*(.eh_frame)) }
151232809Sjmallett  .gcc_except_table   : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) }
152232809Sjmallett  /* Thread Local Storage sections  */
153232809Sjmallett  .tdata	  : { *(.tdata .tdata.* .gnu.linkonce.td.*) }
154232809Sjmallett  .tbss		  : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
155232809Sjmallett  .preinit_array     :
156232809Sjmallett  {
157232809Sjmallett    PROVIDE_HIDDEN (__preinit_array_start = .);
158232809Sjmallett    KEEP (*(.preinit_array))
159232809Sjmallett    PROVIDE_HIDDEN (__preinit_array_end = .);
160232809Sjmallett  }
161232809Sjmallett  .init_array     :
162232809Sjmallett  {
163232809Sjmallett     PROVIDE_HIDDEN (__init_array_start = .);
164232809Sjmallett     KEEP (*(SORT(.init_array.*)))
165232809Sjmallett     KEEP (*(.init_array))
166232809Sjmallett     PROVIDE_HIDDEN (__init_array_end = .);
167232809Sjmallett  }
168232809Sjmallett  .fini_array     :
169232809Sjmallett  {
170232809Sjmallett    PROVIDE_HIDDEN (__fini_array_start = .);
171232809Sjmallett    KEEP (*(.fini_array))
172232809Sjmallett    KEEP (*(SORT(.fini_array.*)))
173232809Sjmallett    PROVIDE_HIDDEN (__fini_array_end = .);
174232809Sjmallett  }
175232809Sjmallett  .ctors          :
176232809Sjmallett  {
177232809Sjmallett    /* gcc uses crtbegin.o to find the start of
178232809Sjmallett       the constructors, so we make sure it is
179232809Sjmallett       first.  Because this is a wildcard, it
180232809Sjmallett       doesn't matter if the user does not
181232809Sjmallett       actually link against crtbegin.o; the
182232809Sjmallett       linker won't look for a file to match a
183232809Sjmallett       wildcard.  The wildcard also means that it
184232809Sjmallett       doesn't matter which directory crtbegin.o
185232809Sjmallett       is in.  */
186232809Sjmallett    KEEP (*crtbegin.o(.ctors))
187232809Sjmallett    KEEP (*crtbegin?.o(.ctors))
188232809Sjmallett    /* We don't want to include the .ctor section from
189232809Sjmallett       the crtend.o file until after the sorted ctors.
190232809Sjmallett       The .ctor section from the crtend file contains the
191232809Sjmallett       end of ctors marker and it must be last */
192232809Sjmallett    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
193232809Sjmallett    KEEP (*(SORT(.ctors.*)))
194232809Sjmallett    KEEP (*(.ctors))
195232809Sjmallett  }
196232809Sjmallett  .dtors          :
197232809Sjmallett  {
198232809Sjmallett    KEEP (*crtbegin.o(.dtors))
199232809Sjmallett    KEEP (*crtbegin?.o(.dtors))
200232809Sjmallett    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
201232809Sjmallett    KEEP (*(SORT(.dtors.*)))
202232809Sjmallett    KEEP (*(.dtors))
203232809Sjmallett  }
204232809Sjmallett  .jcr            : { KEEP (*(.jcr)) }
205232809Sjmallett  .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro* .gnu.linkonce.d.rel.ro.*) }
206232809Sjmallett  . = DATA_SEGMENT_RELRO_END (0, .);
207232809Sjmallett  .data           :
208232809Sjmallett  {
209232809Sjmallett    _fdata = . ;
210232809Sjmallett    *(.data .data.* .gnu.linkonce.d.*)
211232809Sjmallett    SORT(CONSTRUCTORS)
212232809Sjmallett  }
213232809Sjmallett  .data1          : { *(.data1) }
214232809Sjmallett  .got.plt        : { *(.got.plt) }
215232809Sjmallett  . = .;
216232809Sjmallett  _gp = ALIGN(16) + 0x7ff0;
217232809Sjmallett  .got            : { *(.got) }
218232809Sjmallett  /* We want the small data sections together, so single-instruction offsets
219232809Sjmallett     can access them all, and initialized data all before uninitialized, so
220232809Sjmallett     we can shorten the on-disk segment size.  */
221232809Sjmallett  .sdata          :
222232809Sjmallett  {
223232809Sjmallett    *(.sdata .sdata.* .gnu.linkonce.s.*)
224232809Sjmallett  }
225232809Sjmallett  .lit8           : { *(.lit8) }
226232809Sjmallett  .lit4           : { *(.lit4) }
227232809Sjmallett  .srdata         : { *(.srdata) }
228232809Sjmallett  
229232809Sjmallett  . = ALIGN (0x10000); 
230232809Sjmallett  __cvmx_shared_start = .;
231232809Sjmallett  .cvmx_shared : {*(.cvmx_shared .cvmx_shared.linkonce.*)}
232232809Sjmallett  .cvmx_shared_bss : { *(.cvmx_shared_bss .cvmx_shared_bss.linkonce.*) }
233232809Sjmallett  . = ALIGN (0x10000);
234232809Sjmallett  __cvmx_shared_end = .;
235232809Sjmallett  
236232809Sjmallett  _edata = .; PROVIDE (edata = .);
237232809Sjmallett  __bss_start = .;
238232809Sjmallett  _fbss = .;
239232809Sjmallett  .sbss           :
240232809Sjmallett  {
241232809Sjmallett    PROVIDE (__sbss_start = .);
242232809Sjmallett    PROVIDE (___sbss_start = .);
243232809Sjmallett    *(.dynsbss)
244232809Sjmallett    *(.sbss .sbss.* .gnu.linkonce.sb.*)
245232809Sjmallett    *(.scommon)
246232809Sjmallett    PROVIDE (__sbss_end = .);
247232809Sjmallett    PROVIDE (___sbss_end = .);
248232809Sjmallett  }
249232809Sjmallett  .bss            :
250232809Sjmallett  {
251232809Sjmallett   *(.dynbss)
252232809Sjmallett   *(.bss .bss.* .gnu.linkonce.b.*)
253232809Sjmallett   *(COMMON)
254232809Sjmallett   /* Align here to ensure that the .bss section occupies space up to
255232809Sjmallett      _end.  Align after .bss to ensure correct alignment even if the
256232809Sjmallett      .bss section disappears because there are no input sections.
257232809Sjmallett      FIXME: Why do we need it? When there is no .bss section, we don't
258232809Sjmallett      pad the .data section.  */
259232809Sjmallett   . = ALIGN(. != 0 ? 64 / 8 : 1);
260232809Sjmallett  }
261232809Sjmallett  . = ALIGN(64 / 8);
262232809Sjmallett  . = ALIGN(32M);    /* RBF added alignment of data */
263232809Sjmallett  .cvmx_shared : { *(.cvmx_shared) }
264232809Sjmallett  _end = .; PROVIDE (end = .);
265232809Sjmallett  . = DATA_SEGMENT_END (.);
266232809Sjmallett  /* Stabs debugging sections.  */
267232809Sjmallett  .stab          0 : { *(.stab) }
268232809Sjmallett  .stabstr       0 : { *(.stabstr) }
269232809Sjmallett  .stab.excl     0 : { *(.stab.excl) }
270232809Sjmallett  .stab.exclstr  0 : { *(.stab.exclstr) }
271232809Sjmallett  .stab.index    0 : { *(.stab.index) }
272232809Sjmallett  .stab.indexstr 0 : { *(.stab.indexstr) }
273232809Sjmallett  .comment       0 : { *(.comment) }
274232809Sjmallett  /* DWARF debug sections.
275232809Sjmallett     Symbols in the DWARF debugging sections are relative to the beginning
276232809Sjmallett     of the section so we begin them at 0.  */
277232809Sjmallett  /* DWARF 1 */
278232809Sjmallett  .debug          0 : { *(.debug) }
279232809Sjmallett  .line           0 : { *(.line) }
280232809Sjmallett  /* GNU DWARF 1 extensions */
281232809Sjmallett  .debug_srcinfo  0 : { *(.debug_srcinfo) }
282232809Sjmallett  .debug_sfnames  0 : { *(.debug_sfnames) }
283232809Sjmallett  /* DWARF 1.1 and DWARF 2 */
284232809Sjmallett  .debug_aranges  0 : { *(.debug_aranges) }
285232809Sjmallett  .debug_pubnames 0 : { *(.debug_pubnames) }
286232809Sjmallett  /* DWARF 2 */
287232809Sjmallett  .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
288232809Sjmallett  .debug_abbrev   0 : { *(.debug_abbrev) }
289232809Sjmallett  .debug_line     0 : { *(.debug_line) }
290232809Sjmallett  .debug_frame    0 : { *(.debug_frame) }
291232809Sjmallett  .debug_str      0 : { *(.debug_str) }
292232809Sjmallett  .debug_loc      0 : { *(.debug_loc) }
293232809Sjmallett  .debug_macinfo  0 : { *(.debug_macinfo) }
294232809Sjmallett  /* SGI/MIPS DWARF 2 extensions */
295232809Sjmallett  .debug_weaknames 0 : { *(.debug_weaknames) }
296232809Sjmallett  .debug_funcnames 0 : { *(.debug_funcnames) }
297232809Sjmallett  .debug_typenames 0 : { *(.debug_typenames) }
298232809Sjmallett  .debug_varnames  0 : { *(.debug_varnames) }
299232809Sjmallett  /* DWARF 3 */
300232809Sjmallett  .debug_pubtypes 0 : { *(.debug_pubtypes) }
301232809Sjmallett  .debug_ranges   0 : { *(.debug_ranges) }
302232809Sjmallett  .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
303232809Sjmallett  .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) }
304232809Sjmallett  .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) }
305232809Sjmallett  /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) }
306232809Sjmallett}
307