1 |
148 |
jeremybenn |
/*
|
2 |
|
|
|
3 |
|
|
Copyright (c) 2005,2008 Red Hat Incorporated.
|
4 |
|
|
All rights reserved.
|
5 |
|
|
|
6 |
|
|
Redistribution and use in source and binary forms, with or without
|
7 |
|
|
modification, are permitted provided that the following conditions are met:
|
8 |
|
|
|
9 |
|
|
Redistributions of source code must retain the above copyright
|
10 |
|
|
notice, this list of conditions and the following disclaimer.
|
11 |
|
|
|
12 |
|
|
Redistributions in binary form must reproduce the above copyright
|
13 |
|
|
notice, this list of conditions and the following disclaimer in the
|
14 |
|
|
documentation and/or other materials provided with the distribution.
|
15 |
|
|
|
16 |
|
|
The name of Red Hat Incorporated may not be used to endorse
|
17 |
|
|
or promote products derived from this software without specific
|
18 |
|
|
prior written permission.
|
19 |
|
|
|
20 |
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
21 |
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
22 |
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
23 |
|
|
DISCLAIMED. IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY
|
24 |
|
|
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
25 |
|
|
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
26 |
|
|
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
27 |
|
|
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
28 |
|
|
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
29 |
|
|
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
30 |
|
|
|
31 |
|
|
*/
|
32 |
|
|
|
33 |
|
|
/* Default linker script, for normal executables */
|
34 |
|
|
OUTPUT_FORMAT("elf32-m32c", "elf32-m32c",
|
35 |
|
|
"elf32-m32c")
|
36 |
|
|
OUTPUT_ARCH(m32c)
|
37 |
|
|
ENTRY(_start)
|
38 |
|
|
INPUT(-lm32cgloss)
|
39 |
|
|
/* Do we need any of these for elf?
|
40 |
|
|
__DYNAMIC = 0; */
|
41 |
|
|
MEMORY {
|
42 |
|
|
RAM (w) : ORIGIN = RAMSTART, LENGTH = RAMSIZE
|
43 |
|
|
ROM (r) : ORIGIN = ROMSTART, LENGTH = ROMSIZE
|
44 |
|
|
VEC (r) : ORIGIN = VECSTART, LENGTH = 32
|
45 |
|
|
RESETVEC (r) : ORIGIN = RESETSTART, LENGTH = 4
|
46 |
|
|
}
|
47 |
|
|
SECTIONS
|
48 |
|
|
{
|
49 |
|
|
/* There are three cases we care about: First, RW data that must be
|
50 |
|
|
in the low 64k. This will always be copied from ROM. Second, RO
|
51 |
|
|
data that must be in the low 64k. This may be copied from ROM if
|
52 |
|
|
the ROM is above 64k. Third, anything that does not need to be
|
53 |
|
|
in the first 64k. Chips normally only have two memory regions;
|
54 |
|
|
low ram and either high or low rom. We map the low rom needs
|
55 |
|
|
into one of the actual regions. */
|
56 |
|
|
|
57 |
|
|
/* .text goes first so the rom image of ram data will follow it. */
|
58 |
|
|
.text :
|
59 |
|
|
{
|
60 |
|
|
*(.text .stub .text.* .gnu.linkonce.t.*)
|
61 |
|
|
KEEP (*(.text.*personality*))
|
62 |
|
|
/* .gnu.warning sections are handled specially by elf32.em. */
|
63 |
|
|
*(.gnu.warning)
|
64 |
|
|
*(.interp .hash .dynsym .dynstr .gnu.version*)
|
65 |
|
|
PROVIDE (__etext = .);
|
66 |
|
|
PROVIDE (_etext = .);
|
67 |
|
|
PROVIDE (etext = .);
|
68 |
|
|
. = ALIGN(2);
|
69 |
|
|
PROVIDE(__romdatastart = .); /* IF_ROCOPY */
|
70 |
|
|
} > ROM =0
|
71 |
|
|
|
72 |
|
|
/* rodata will either be part of data, or will be in low rom. So we
|
73 |
|
|
might be spanning it, or we might not. This lets us include it
|
74 |
|
|
in our calculations when appropriate. */
|
75 |
|
|
|
76 |
|
|
.rodata : {
|
77 |
|
|
. = ALIGN(2);
|
78 |
|
|
PROVIDE(__datastart = .); /* IF_ROCOPY */
|
79 |
|
|
*(.plt)
|
80 |
|
|
KEEP (*(.init))
|
81 |
|
|
KEEP (*(.fini))
|
82 |
|
|
*(.rodata .rodata.* .gnu.linkonce.r.*)
|
83 |
|
|
*(.rodata1)
|
84 |
|
|
*(.eh_frame_hdr)
|
85 |
|
|
KEEP (*(.eh_frame))
|
86 |
|
|
KEEP (*(.gcc_except_table)) *(.gcc_except_table.*)
|
87 |
|
|
. = ALIGN(2);
|
88 |
|
|
PROVIDE(__romdatastart = .); /* IF_ROROM */
|
89 |
|
|
} > LOWROM
|
90 |
|
|
|
91 |
|
|
.data : {
|
92 |
|
|
. = ALIGN(32 / 8);
|
93 |
|
|
PROVIDE (__datastart = .); /* IF_ROROM */
|
94 |
|
|
PROVIDE (__preinit_array_start = .);
|
95 |
|
|
KEEP (*(.preinit_array))
|
96 |
|
|
PROVIDE (__preinit_array_end = .);
|
97 |
|
|
PROVIDE (__init_array_start = .);
|
98 |
|
|
KEEP (*(.init_array))
|
99 |
|
|
PROVIDE (__init_array_end = .);
|
100 |
|
|
PROVIDE (__fini_array_start = .);
|
101 |
|
|
KEEP (*(.fini_array))
|
102 |
|
|
PROVIDE (__fini_array_end = .);
|
103 |
|
|
|
104 |
|
|
/* gcc uses crtbegin.o to find the start of
|
105 |
|
|
the constructors, so we make sure it is
|
106 |
|
|
first. Because this is a wildcard, it
|
107 |
|
|
doesn't matter if the user does not
|
108 |
|
|
actually link against crtbegin.o; the
|
109 |
|
|
linker won't look for a file to match a
|
110 |
|
|
wildcard. The wildcard also means that it
|
111 |
|
|
doesn't matter which directory crtbegin.o
|
112 |
|
|
is in. */
|
113 |
|
|
KEEP (*crtbegin*.o(.ctors))
|
114 |
|
|
/* We don't want to include the .ctor section from
|
115 |
|
|
from the crtend.o file until after the sorted ctors.
|
116 |
|
|
The .ctor section from the crtend file contains the
|
117 |
|
|
end of ctors marker and it must be last */
|
118 |
|
|
KEEP (*(EXCLUDE_FILE (*crtend*.o ) .ctors))
|
119 |
|
|
KEEP (*(SORT(.ctors.*)))
|
120 |
|
|
KEEP (*(.ctors))
|
121 |
|
|
|
122 |
|
|
KEEP (*crtbegin*.o(.dtors))
|
123 |
|
|
KEEP (*(EXCLUDE_FILE (*crtend*.o ) .dtors))
|
124 |
|
|
KEEP (*(SORT(.dtors.*)))
|
125 |
|
|
KEEP (*(.dtors))
|
126 |
|
|
|
127 |
|
|
KEEP (*(.jcr))
|
128 |
|
|
*(.data.rel.ro.local) *(.data.rel.ro*)
|
129 |
|
|
*(.dynamic)
|
130 |
|
|
|
131 |
|
|
*(.data .data.* .gnu.linkonce.d.*)
|
132 |
|
|
KEEP (*(.gnu.linkonce.d.*personality*))
|
133 |
|
|
SORT(CONSTRUCTORS)
|
134 |
|
|
*(.data1)
|
135 |
|
|
*(.got.plt) *(.got)
|
136 |
|
|
PROVIDE (__var_vect_start = .);
|
137 |
|
|
*(.var_vects)
|
138 |
|
|
|
139 |
|
|
. = ALIGN(2);
|
140 |
|
|
_edata = .;
|
141 |
|
|
PROVIDE (edata = .);
|
142 |
|
|
PROVIDE (__dataend = .);
|
143 |
|
|
} > RAM AT>ROM
|
144 |
|
|
|
145 |
|
|
/* Note that __romdatacopysize may be ZERO for the simulator, which
|
146 |
|
|
knows how to intialize RAM directly. It should ONLY be used for
|
147 |
|
|
copying data from ROM to RAM; if you need to know the size of the
|
148 |
|
|
data section, subtract the end symbol from the start symbol. */
|
149 |
|
|
/* Note that crt0 assumes this is even; all the start/stop symbols
|
150 |
|
|
are also assumed word-aligned. */
|
151 |
|
|
PROVIDE (__romdatacopysize = SIZEOF(.rodata) + SIZEOF(.data));
|
152 |
|
|
|
153 |
|
|
.bss : {
|
154 |
|
|
. = ALIGN(2);
|
155 |
|
|
PROVIDE (__bssstart = .);
|
156 |
|
|
*(.dynbss)
|
157 |
|
|
*(.bss .bss.* .gnu.linkonce.b.*)
|
158 |
|
|
*(COMMON)
|
159 |
|
|
. = ALIGN(2);
|
160 |
|
|
PROVIDE (__bssend = .);
|
161 |
|
|
_end = .;
|
162 |
|
|
PROVIDE (end = .);
|
163 |
|
|
} > RAM
|
164 |
|
|
PROVIDE (__bsssize = SIZEOF(.bss));
|
165 |
|
|
|
166 |
|
|
.stack (RAMSTART + RAMSIZE - 2) :
|
167 |
|
|
{
|
168 |
|
|
PROVIDE (__stack = .);
|
169 |
|
|
*(.stack)
|
170 |
|
|
}
|
171 |
|
|
|
172 |
|
|
.vec : {
|
173 |
|
|
*(.vec)
|
174 |
|
|
} > VEC
|
175 |
|
|
.resetvec : {
|
176 |
|
|
*(.resetvec)
|
177 |
|
|
} > RESETVEC
|
178 |
|
|
|
179 |
|
|
/* The rest are all not normally part of the runtime image. */
|
180 |
|
|
|
181 |
|
|
/* Stabs debugging sections. */
|
182 |
|
|
.stab 0 : { *(.stab) }
|
183 |
|
|
.stabstr 0 : { *(.stabstr) }
|
184 |
|
|
.stab.excl 0 : { *(.stab.excl) }
|
185 |
|
|
.stab.exclstr 0 : { *(.stab.exclstr) }
|
186 |
|
|
.stab.index 0 : { *(.stab.index) }
|
187 |
|
|
.stab.indexstr 0 : { *(.stab.indexstr) }
|
188 |
|
|
.comment 0 : { *(.comment) }
|
189 |
|
|
/* DWARF debug sections.
|
190 |
|
|
Symbols in the DWARF debugging sections are relative to the beginning
|
191 |
|
|
of the section so we begin them at 0. */
|
192 |
|
|
/* DWARF 1 */
|
193 |
|
|
.debug 0 : { *(.debug) }
|
194 |
|
|
.line 0 : { *(.line) }
|
195 |
|
|
/* GNU DWARF 1 extensions */
|
196 |
|
|
.debug_srcinfo 0 : { *(.debug_srcinfo) }
|
197 |
|
|
.debug_sfnames 0 : { *(.debug_sfnames) }
|
198 |
|
|
/* DWARF 1.1 and DWARF 2 */
|
199 |
|
|
.debug_aranges 0 : { *(.debug_aranges) }
|
200 |
|
|
.debug_pubnames 0 : { *(.debug_pubnames) }
|
201 |
|
|
/* DWARF 2 */
|
202 |
|
|
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
|
203 |
|
|
.debug_abbrev 0 : { *(.debug_abbrev) }
|
204 |
|
|
.debug_line 0 : { *(.debug_line) }
|
205 |
|
|
.debug_frame 0 : { *(.debug_frame) }
|
206 |
|
|
.debug_str 0 : { *(.debug_str) }
|
207 |
|
|
.debug_loc 0 : { *(.debug_loc) }
|
208 |
|
|
.debug_macinfo 0 : { *(.debug_macinfo) }
|
209 |
|
|
/* SGI/MIPS DWARF 2 extensions */
|
210 |
|
|
.debug_weaknames 0 : { *(.debug_weaknames) }
|
211 |
|
|
.debug_funcnames 0 : { *(.debug_funcnames) }
|
212 |
|
|
.debug_typenames 0 : { *(.debug_typenames) }
|
213 |
|
|
.debug_varnames 0 : { *(.debug_varnames) }
|
214 |
|
|
/DISCARD/ : { *(.note.GNU-stack) }
|
215 |
|
|
}
|