1 | /* |
---|
2 | * This file contains directives for the GNU linker which are specific |
---|
3 | * to the 405GP/EX |
---|
4 | * This file is intended to be used together with dlentry.s |
---|
5 | * it will generate downloadable code |
---|
6 | * |
---|
7 | * Modifications for gen405 by Dennis Ehlin |
---|
8 | * Modifications for virtex by Keith, Greg, and Bob |
---|
9 | * Modifications for 405GP/EX by Michael Hamel |
---|
10 | * |
---|
11 | * $Id$ |
---|
12 | */ |
---|
13 | |
---|
14 | OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", "elf32-powerpc") |
---|
15 | OUTPUT_ARCH(powerpc) |
---|
16 | ENTRY(download_entry) |
---|
17 | |
---|
18 | kIntrStackSize = 16K; |
---|
19 | kMainStackSize = 64K; |
---|
20 | |
---|
21 | RamBase = DEFINED(RamBase) ? RamBase : 0; |
---|
22 | RamSize = DEFINED(RamSize) ? RamSize : 256M; |
---|
23 | HeapSize = DEFINED(HeapSize) ? HeapSize : 0x0; |
---|
24 | |
---|
25 | MEMORY { |
---|
26 | RAM : ORIGIN = 0, LENGTH = 256M |
---|
27 | /*FLASH : ORIGIN = 0xFFE00000, LENGTH = 16M*/ |
---|
28 | } |
---|
29 | |
---|
30 | |
---|
31 | SECTIONS |
---|
32 | { |
---|
33 | /* First 16K is occupied by exception vectors and anything else we want to put there */ |
---|
34 | .text 0x4000: |
---|
35 | { |
---|
36 | text.start = . ; |
---|
37 | *(.entry) |
---|
38 | *(.entry2) |
---|
39 | *(.text*) |
---|
40 | *(.rodata*) |
---|
41 | *(.rodata1) |
---|
42 | |
---|
43 | /* |
---|
44 | * Special FreeBSD sysctl sections. |
---|
45 | */ |
---|
46 | . = ALIGN (16); |
---|
47 | __start_set_sysctl_set = .; |
---|
48 | *(set_sysctl_*); |
---|
49 | __stop_set_sysctl_set = ABSOLUTE(.); |
---|
50 | *(set_domain_*); |
---|
51 | *(set_pseudo_*); |
---|
52 | |
---|
53 | /* C++ constructors/destructors */ |
---|
54 | *(.gnu.linkonce.t*) |
---|
55 | |
---|
56 | /* Initialization and finalization code. |
---|
57 | * |
---|
58 | * Various files can provide initialization and finalization functions. |
---|
59 | * The bodies of these functions are in .init and .fini sections. We |
---|
60 | * accumulate the bodies here, and prepend function prologues from |
---|
61 | * ecrti.o and function epilogues from ecrtn.o. ecrti.o must be linked |
---|
62 | * first; ecrtn.o must be linked last. Because these are wildcards, it |
---|
63 | * doesn't matter if the user does not actually link against ecrti.o and |
---|
64 | * ecrtn.o; the linker won't look for a file to match a wildcard. The |
---|
65 | * wildcard also means that it doesn't matter which directory ecrti.o |
---|
66 | * and ecrtn.o are in. |
---|
67 | */ |
---|
68 | PROVIDE (_init = .); |
---|
69 | *ecrti.o(.init) |
---|
70 | *(.init) |
---|
71 | *ecrtn.o(.init) |
---|
72 | |
---|
73 | PROVIDE (_fini = .); |
---|
74 | *ecrti.o(.fini) |
---|
75 | *(.fini) |
---|
76 | *ecrtn.o(.init) |
---|
77 | |
---|
78 | /* |
---|
79 | * C++ constructors and destructors for static objects. |
---|
80 | * PowerPC EABI does not use crtstuff yet, so we build "old-style" |
---|
81 | * constructor and destructor lists that begin with the list lenght |
---|
82 | * end terminate with a NULL entry. |
---|
83 | */ |
---|
84 | |
---|
85 | PROVIDE (__CTOR_LIST__ = .); |
---|
86 | *crtbegin.o(.ctors) |
---|
87 | *(.ctors) |
---|
88 | *crtend.o(.ctors) |
---|
89 | LONG(0) |
---|
90 | PROVIDE (__CTOR_END__ = .); |
---|
91 | |
---|
92 | PROVIDE (__DTOR_LIST__ = .); |
---|
93 | *crtbegin.o(.dtors) |
---|
94 | *(.dtors) |
---|
95 | *crtend.o(.dtors) |
---|
96 | LONG(0) |
---|
97 | PROVIDE (__DTOR_END__ = .); |
---|
98 | |
---|
99 | /* Exception frame info */ |
---|
100 | *(.eh_frame) |
---|
101 | /* Miscellaneous read-only data */ |
---|
102 | _rodata_start = . ; |
---|
103 | *(.gnu.linkonce.r*) |
---|
104 | *(.lit) |
---|
105 | *(.shdata) |
---|
106 | *(.rodata) |
---|
107 | *(.rodata1) |
---|
108 | *(.descriptors) |
---|
109 | *(rom_ver) |
---|
110 | _erodata = .; |
---|
111 | |
---|
112 | PROVIDE (__EXCEPT_START__ = .); |
---|
113 | *(.gcc_except_table*) |
---|
114 | PROVIDE (__EXCEPT_END__ = .); |
---|
115 | __GOT_START__ = .; |
---|
116 | s.got = .; |
---|
117 | *(.got.plt) |
---|
118 | *(.got) |
---|
119 | *(.got1) |
---|
120 | PROVIDE (__GOT2_START__ = .); |
---|
121 | PROVIDE (_GOT2_START_ = .); |
---|
122 | *(.got2) |
---|
123 | PROVIDE (__GOT2_END__ = .); |
---|
124 | PROVIDE (_GOT2_END_ = .); |
---|
125 | |
---|
126 | PROVIDE (__FIXUP_START__ = .); |
---|
127 | PROVIDE (_FIXUP_START_ = .); |
---|
128 | *(.fixup) |
---|
129 | PROVIDE (_FIXUP_END_ = .); |
---|
130 | PROVIDE (__FIXUP_END__ = .); |
---|
131 | |
---|
132 | |
---|
133 | /* Various possible names for the end of the .text section */ |
---|
134 | etext = ALIGN(0x10); |
---|
135 | _etext = .; |
---|
136 | |
---|
137 | *(.lit) |
---|
138 | *(.shdata) |
---|
139 | _endtext = ALIGN(0x10); |
---|
140 | text.end = .; |
---|
141 | text.size = text.end - text.start; |
---|
142 | } >RAM |
---|
143 | |
---|
144 | text.size = text.end - text.start; |
---|
145 | |
---|
146 | .jcr : { KEEP (*(.jcr)) } >RAM |
---|
147 | |
---|
148 | .rel.dyn : { |
---|
149 | *(.rel.init) |
---|
150 | *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) |
---|
151 | *(.rel.fini) |
---|
152 | *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) |
---|
153 | *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*) |
---|
154 | *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) |
---|
155 | *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) |
---|
156 | *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) |
---|
157 | *(.rel.ctors) |
---|
158 | *(.rel.dtors) |
---|
159 | *(.rel.got) |
---|
160 | *(.rel.sdata .rel.sdata.* .rel.gnu.linkonce.s.*) |
---|
161 | *(.rel.sbss .rel.sbss.* .rel.gnu.linkonce.sb.*) |
---|
162 | *(.rel.sdata2 .rel.sdata2.* .rel.gnu.linkonce.s2.*) |
---|
163 | *(.rel.sbss2 .rel.sbss2.* .rel.gnu.linkonce.sb2.*) |
---|
164 | *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) |
---|
165 | } >RAM |
---|
166 | .rela.dyn : { |
---|
167 | *(.rela.init) |
---|
168 | *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) |
---|
169 | *(.rela.fini) |
---|
170 | *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) |
---|
171 | *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) |
---|
172 | *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) |
---|
173 | *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) |
---|
174 | *(.rela.ctors) |
---|
175 | *(.rela.dtors) |
---|
176 | *(.rela.got) |
---|
177 | *(.rela.got1) |
---|
178 | *(.rela.got2) |
---|
179 | *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*) |
---|
180 | *(.rela.sbss .rela.sbss.* .rela.gnu.linkonce.sb.*) |
---|
181 | *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*) |
---|
182 | *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*) |
---|
183 | *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) |
---|
184 | } >RAM |
---|
185 | |
---|
186 | |
---|
187 | /* Initialised large data */ |
---|
188 | .data ( . ) : |
---|
189 | { |
---|
190 | . = ALIGN (4); |
---|
191 | data.start = .; |
---|
192 | *(.data) |
---|
193 | *(.data1) |
---|
194 | *(.data.* .gnu.linkonce.d.*) |
---|
195 | data.end = .; |
---|
196 | } > RAM |
---|
197 | |
---|
198 | /* Initialised small data addressed as offsets from r13 */ |
---|
199 | .sdata : { |
---|
200 | . = ALIGN (4); |
---|
201 | PROVIDE (__SDATA_START__ = .); |
---|
202 | sdata.start = .; |
---|
203 | *(.sdata*) |
---|
204 | *(.gnu.linkonce.s.*) |
---|
205 | sdata.end = .; |
---|
206 | } > RAM |
---|
207 | |
---|
208 | /* Zeroed small data addressed as offsets from r13 */ |
---|
209 | .sbss : { |
---|
210 | . = ALIGN (4); |
---|
211 | PROVIDE(__SBSS_START__ = .); |
---|
212 | sbss.start = .; |
---|
213 | *(.sbss*) |
---|
214 | *(.gnu.linkonce.sb.*); |
---|
215 | sbss.end = .; |
---|
216 | } > RAM |
---|
217 | PROVIDE(__SBSS_END__ = .); |
---|
218 | |
---|
219 | /* Zeroed large data */ |
---|
220 | .bss : { |
---|
221 | . = ALIGN (4); |
---|
222 | bss.start = .; |
---|
223 | *(.bss .bss* .gnu.linkonce.b*) |
---|
224 | . = ALIGN(4); |
---|
225 | bss.end = .; |
---|
226 | } > RAM |
---|
227 | |
---|
228 | bss.size = bss.end - bss.start; |
---|
229 | sbss.size = sbss.end - sbss.start; |
---|
230 | |
---|
231 | /* Interrupt stack: align to a cache-line boundary */ |
---|
232 | IntrStack_start = ALIGN(0x20); |
---|
233 | . += kIntrStackSize; |
---|
234 | intrStack = .; |
---|
235 | PROVIDE(intrStackPtr = intrStack); |
---|
236 | PROVIDE(intrStack_start = IntrStack_start); |
---|
237 | PROVIDE(intrStack_size = kIntrStackSize); |
---|
238 | |
---|
239 | /* Main stack: align to a cache-line boundary */ |
---|
240 | stack.start = ALIGN(0x20); |
---|
241 | . += kMainStackSize; |
---|
242 | stack.end = .; |
---|
243 | |
---|
244 | /* RTEMS workspace: size specified by application */ |
---|
245 | WorkAreaBase = ALIGN(0x20); |
---|
246 | |
---|
247 | /* Debugging information */ |
---|
248 | .line 0 : { *(.line) } |
---|
249 | .debug 0 : { *(.debug) } |
---|
250 | .debug_sfnames 0 : { *(.debug_sfnames) } |
---|
251 | .debug_srcinfo 0 : { *(.debug_srcinfo) } |
---|
252 | .debug_pubnames 0 : { *(.debug_pubnames) } |
---|
253 | .debug_aranges 0 : { *(.debug_aranges) } |
---|
254 | .debug_aregion 0 : { *(.debug_aregion) } |
---|
255 | .debug_macinfo 0 : { *(.debug_macinfo) } |
---|
256 | .stab 0 : { *(.stab) } |
---|
257 | .stabstr 0 : { *(.stabstr) } |
---|
258 | } |
---|