1 | /* |
---|
2 | |
---|
3 | Copyright (c) 2005,2008,2009 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_ARCH(rx) |
---|
35 | ENTRY(_start) |
---|
36 | |
---|
37 | /* Do we need any of these for elf? |
---|
38 | __DYNAMIC = 0; */ |
---|
39 | |
---|
40 | /* This memory layout is larger than the largest predicted RX600 chip, |
---|
41 | but gives us more memory for benchmarks. */ |
---|
42 | |
---|
43 | MEMORY { |
---|
44 | RAM (w) : ORIGIN = 0x01000000, LENGTH = 0x07000000 /* 112 Mb "external" address space. */ |
---|
45 | STACK (w) : ORIGIN = 0x08000000, LENGTH = 16 /* Top of RAM. */ |
---|
46 | } |
---|
47 | |
---|
48 | SECTIONS |
---|
49 | { |
---|
50 | .text : |
---|
51 | { |
---|
52 | PROVIDE (_start = .); |
---|
53 | *(.text P .stub .text.* .gnu.linkonce.t.*) |
---|
54 | KEEP (*(.text.*personality*)) |
---|
55 | /* .gnu.warning sections are handled specially by elf32.em. */ |
---|
56 | *(.gnu.warning) |
---|
57 | *(.interp .hash .dynsym .dynstr .gnu.version*) |
---|
58 | PROVIDE (__etext = .); |
---|
59 | PROVIDE (_etext = .); |
---|
60 | PROVIDE (etext = .); |
---|
61 | . = ALIGN(4); |
---|
62 | KEEP (*(.init)) |
---|
63 | KEEP (*(.fini)) |
---|
64 | } > RAM |
---|
65 | |
---|
66 | .rodata : { |
---|
67 | . = ALIGN(4); |
---|
68 | *(.plt) |
---|
69 | *(.rodata C C_2 C_1 W W_2 W_1 .rodata.* .gnu.linkonce.r.*) |
---|
70 | *(.rodata1) |
---|
71 | *(.eh_frame_hdr) |
---|
72 | KEEP (*(.eh_frame)) |
---|
73 | KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) |
---|
74 | . = ALIGN(4); |
---|
75 | PROVIDE(__romdatastart = .); |
---|
76 | } > RAM |
---|
77 | |
---|
78 | .data : { |
---|
79 | . = ALIGN(4); |
---|
80 | PROVIDE (__datastart = .); |
---|
81 | PROVIDE (__preinit_array_start = .); |
---|
82 | KEEP (*(.preinit_array)) |
---|
83 | PROVIDE (__preinit_array_end = .); |
---|
84 | PROVIDE (__init_array_start = .); |
---|
85 | KEEP (*(SORT(.init_array.*))) |
---|
86 | KEEP (*(.init_array)) |
---|
87 | PROVIDE (__init_array_end = .); |
---|
88 | PROVIDE (__fini_array_start = .); |
---|
89 | KEEP (*(.fini_array)) |
---|
90 | KEEP (*(SORT(.fini_array.*))) |
---|
91 | PROVIDE (__fini_array_end = .); |
---|
92 | LONG(0); /* Sentinel. */ |
---|
93 | |
---|
94 | /* gcc uses crtbegin.o to find the start of the constructors, so |
---|
95 | we make sure it is first. Because this is a wildcard, it |
---|
96 | doesn't matter if the user does not actually link against |
---|
97 | crtbegin.o; the linker won't look for a file to match a |
---|
98 | wildcard. The wildcard also means that it doesn't matter which |
---|
99 | directory crtbegin.o is in. */ |
---|
100 | KEEP (*crtbegin*.o(.ctors)) |
---|
101 | |
---|
102 | /* We don't want to include the .ctor section from from the |
---|
103 | crtend.o file until after the sorted ctors. The .ctor section |
---|
104 | from the crtend file contains the end of ctors marker and it |
---|
105 | must be last */ |
---|
106 | KEEP (*(EXCLUDE_FILE (*crtend*.o ) .ctors)) |
---|
107 | KEEP (*(SORT(.ctors.*))) |
---|
108 | KEEP (*(.ctors)) |
---|
109 | |
---|
110 | KEEP (*crtbegin*.o(.dtors)) |
---|
111 | KEEP (*(EXCLUDE_FILE (*crtend*.o ) .dtors)) |
---|
112 | KEEP (*(SORT(.dtors.*))) |
---|
113 | KEEP (*(.dtors)) |
---|
114 | |
---|
115 | KEEP (*(.jcr)) |
---|
116 | *(.data.rel.ro.local) *(.data.rel.ro*) |
---|
117 | *(.dynamic) |
---|
118 | |
---|
119 | *(.data D .data.* .gnu.linkonce.d.*) |
---|
120 | KEEP (*(.gnu.linkonce.d.*personality*)) |
---|
121 | SORT(CONSTRUCTORS) |
---|
122 | *(.data1) |
---|
123 | *(.got.plt) *(.got) |
---|
124 | |
---|
125 | /* We want the small data sections together, so single-instruction offsets |
---|
126 | can access them all, and initialized data all before uninitialized, so |
---|
127 | we can shorten the on-disk segment size. */ |
---|
128 | . = ALIGN(4); |
---|
129 | *(.sdata .sdata.* .gnu.linkonce.s.* D_2 D_1) |
---|
130 | |
---|
131 | . = ALIGN(4); |
---|
132 | _edata = .; |
---|
133 | PROVIDE (edata = .); |
---|
134 | PROVIDE (__dataend = .); |
---|
135 | } > RAM |
---|
136 | |
---|
137 | /* Note that crt0 assumes this is a multiple of four; all the |
---|
138 | start/stop symbols are also assumed long-aligned. */ |
---|
139 | /* PROVIDE (__romdatacopysize = __dataend - __datastart); */ |
---|
140 | /* We're loading into simulator ram, no need to copy */ |
---|
141 | PROVIDE (__romdatacopysize = 0); |
---|
142 | |
---|
143 | .bss : { |
---|
144 | . = ALIGN(4); |
---|
145 | PROVIDE (__bssstart = .); |
---|
146 | *(.dynbss) |
---|
147 | *(.sbss .sbss.*) |
---|
148 | *(.bss B B_2 B_1 .bss.* .gnu.linkonce.b.*) |
---|
149 | . = ALIGN(4); |
---|
150 | *(COMMON) |
---|
151 | . = ALIGN(4); |
---|
152 | PROVIDE (__bssend = .); |
---|
153 | _end = .; |
---|
154 | PROVIDE (end = .); |
---|
155 | } > RAM |
---|
156 | PROVIDE (__bsssize = SIZEOF(.bss) / 4); |
---|
157 | |
---|
158 | /* The __stack_size value of 0x100 is just a guess, but since it is |
---|
159 | PROVIDEd the user can override it on the command line. It has to be |
---|
160 | set here, rather than inside the .stack section, as symbols defined |
---|
161 | inside sections are only evaluated during the final phase of the link, |
---|
162 | long after the ASSERT is checked. An ASSERT referencing a PROVIDED but |
---|
163 | not yet evaluated symbol will automatically fail. |
---|
164 | |
---|
165 | FIXME: It would be nice if this value could be automatically set via |
---|
166 | gcc's -fstack-usage command line option somehow. */ |
---|
167 | PROVIDE (__stack_size = 0x100); |
---|
168 | |
---|
169 | .stack (ORIGIN (STACK)) : |
---|
170 | { |
---|
171 | PROVIDE (__stack = .); |
---|
172 | *(.stack) |
---|
173 | |
---|
174 | /* Linker section checking ignores empty sections like |
---|
175 | this one so we have to have our own test here. */ |
---|
176 | ASSERT ((__stack > (_end + __stack_size)), |
---|
177 | "Error: Too much data - no room left for the stack"); |
---|
178 | } > STACK |
---|
179 | |
---|
180 | /* Providing one of these symbols in your code is sufficient to have |
---|
181 | it linked in to the fixed vector table. */ |
---|
182 | |
---|
183 | PROVIDE (__rx_priviledged_exception_handler = 0x00000000); |
---|
184 | PROVIDE (__rx_access_exception_handler = 0x00000000); |
---|
185 | PROVIDE (__rx_undefined_exception_handler = 0x00000000); |
---|
186 | PROVIDE (__rx_floating_exception_handler = 0x00000000); |
---|
187 | PROVIDE (__rx_nonmaskable_exception_handler = 0x00000000); |
---|
188 | |
---|
189 | .vectors (0xFFFFFFD0) : |
---|
190 | { |
---|
191 | PROVIDE (__vectors = .); |
---|
192 | LONG (__rx_priviledged_exception_handler); |
---|
193 | LONG (__rx_access_exception_handler); |
---|
194 | LONG (0); |
---|
195 | LONG (__rx_undefined_exception_handler); |
---|
196 | LONG (0); |
---|
197 | LONG (__rx_floating_exception_handler); |
---|
198 | LONG (0); |
---|
199 | LONG (0); |
---|
200 | LONG (0); |
---|
201 | LONG (0); |
---|
202 | LONG (__rx_nonmaskable_exception_handler); |
---|
203 | LONG (_start); |
---|
204 | } |
---|
205 | |
---|
206 | /* The rest are all not normally part of the runtime image. */ |
---|
207 | .note : { *(.note) } |
---|
208 | |
---|
209 | /* Stabs debugging sections. */ |
---|
210 | .stab 0 : { *(.stab) } |
---|
211 | .stabstr 0 : { *(.stabstr) } |
---|
212 | .stab.excl 0 : { *(.stab.excl) } |
---|
213 | .stab.exclstr 0 : { *(.stab.exclstr) } |
---|
214 | .stab.index 0 : { *(.stab.index) } |
---|
215 | .stab.indexstr 0 : { *(.stab.indexstr) } |
---|
216 | .comment 0 : { *(.comment) } |
---|
217 | /* DWARF debug sections. |
---|
218 | Symbols in the DWARF debugging sections are relative to the beginning |
---|
219 | of the section so we begin them at 0. */ |
---|
220 | /* DWARF 1 */ |
---|
221 | .debug 0 : { *(.debug) } |
---|
222 | .line 0 : { *(.line) } |
---|
223 | /* GNU DWARF 1 extensions */ |
---|
224 | .debug_srcinfo 0 : { *(.debug_srcinfo) } |
---|
225 | .debug_sfnames 0 : { *(.debug_sfnames) } |
---|
226 | /* DWARF 1.1 and DWARF 2 */ |
---|
227 | .debug_aranges 0 : { *(.debug_aranges) } |
---|
228 | .debug_pubnames 0 : { *(.debug_pubnames) } |
---|
229 | /* DWARF 2 */ |
---|
230 | .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } |
---|
231 | .debug_abbrev 0 : { *(.debug_abbrev) } |
---|
232 | .debug_line 0 : { *(.debug_line .debug_line.* .debug_line_end ) } |
---|
233 | .debug_frame 0 : { *(.debug_frame) } |
---|
234 | .debug_str 0 : { *(.debug_str) } |
---|
235 | .debug_loc 0 : { *(.debug_loc) } |
---|
236 | .debug_macinfo 0 : { *(.debug_macinfo) } |
---|
237 | /* SGI/MIPS DWARF 2 extensions */ |
---|
238 | .debug_weaknames 0 : { *(.debug_weaknames) } |
---|
239 | .debug_funcnames 0 : { *(.debug_funcnames) } |
---|
240 | .debug_typenames 0 : { *(.debug_typenames) } |
---|
241 | .debug_varnames 0 : { *(.debug_varnames) } |
---|
242 | /* DWARF 3 */ |
---|
243 | .debug_pubtypes 0 : { *(.debug_pubtypes) } |
---|
244 | .debug_ranges 0 : { *(.debug_ranges) } |
---|
245 | /* DWARF Extension. */ |
---|
246 | .debug_macro 0 : { *(.debug_macro) } |
---|
247 | /DISCARD/ : { *(.note.GNU-stack) } |
---|
248 | } |
---|