1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2007 Tensilica, Inc.
* (C) Copyright 2014 - 2016 Cadence Design Systems Inc.
*/
#ifndef _XTENSA_LDSCRIPT_H
#define _XTENSA_LDSCRIPT_H
/*
* This linker script is pre-processed with CPP to avoid hard-coding
* addresses that depend on the Xtensa core configuration, because
* this FPGA board can be used with a huge variety of Xtensa cores.
*/
#include <asm/arch/core.h>
#include <asm/addrspace.h>
#define ALIGN_LMA 4
#define LMA_EQ_VMA
#define FORCE_OUTPUT . = .
#define FOLLOWING(sec) \
AT(((LOADADDR(sec) + SIZEOF(sec) + ALIGN_LMA-1)) & ~(ALIGN_LMA-1))
/*
* Specify an output section that will be added to the ROM store table
* (PACKED_SECTION) or one that will be resident in ROM (RESIDENT_SECTION).
* 'symname' is a base name for section boundary symbols *_start & *_end.
* 'lma' is the load address at which a section will be packed in ROM.
* 'region' is the basename identifying a memory region and program header.
* 'keep' prevents removal of empty sections (must be 'KEEP' or 'NOKEEP').
*/
#define RELOCATE1(_sec_) \
LONG(_##_sec_##_start); \
LONG(_##_sec_##_end); \
LONG(LOADADDR(.##_sec_));
#define RELOCATE2(_sym_, _sec_) \
LONG(_##_sym_##_##_sec_##_start); \
LONG(_##_sym_##_##_sec_##_end); \
LONG(LOADADDR(.##_sym_##.##_sec_));
#define RELOCATE_USER1(_sec_) \
LONG(_##_sec_##_start); \
LONG(_##_sec_##_end); \
LONG(LOADADDR(_sec_));
#define SECTION_VECTOR(_sym_, _sec_, _vma_, _lma_) \
.##_sym_##.##_sec_ _vma_ : _lma_ \
{ \
. = ALIGN(4); \
_##_sym_##_##_sec_##_start = ABSOLUTE(.); \
KEEP(*(.##_sym_##.##_sec_)) \
_##_sym_##_##_sec_##_end = ABSOLUTE(.); \
}
/* In MMU configs there are two aliases of SYSROM, cached and uncached.
* For various reasons it is simpler to use the uncached mapping for load
* addresses, so ROM sections end up contiguous with the reset vector and
* we get a compact binary image. However we can gain performance by doing
* the unpacking from the cached ROM mapping. So we adjust all the load
* addresses in the ROM store table with an offset to the cached mapping,
* including the symbols referring to the ROM store table itself.
*/
#define SECTION_ResetVector(_vma_, _lma_) \
.ResetVector.text _vma_ : _lma_ \
{ \
FORCE_OUTPUT; \
KEEP(*(.ResetVector.text)); \
KEEP(*(.reset.literal .reset.text)) \
}
#define SECTION_text(_vma_, _lma_) \
.text _vma_ : _lma_ \
{ \
_text_start = ABSOLUTE(.); \
*(.literal .text) \
*(.literal.* .text.* .stub) \
*(.gnu.warning .gnu.linkonce.literal.*) \
*(.gnu.linkonce.t.*.literal .gnu.linkonce.t.*) \
*(.fini.literal) \
*(.fini) \
*(.gnu.version) \
_text_end = ABSOLUTE(.); \
}
#define SECTION_rodata(_vma_, _lma_) \
.rodata _vma_ : _lma_ \
{ \
_rodata_start = ABSOLUTE(.); \
*(.rodata) \
*(.rodata.*) \
*(.dtb.init.rodata) \
*(.gnu.linkonce.r.*) \
*(.rodata1) \
__XT_EXCEPTION_TABLE__ = ABSOLUTE(.); \
*(.xt_except_table) \
*(.gcc_except_table) \
*(.gnu.linkonce.e.*) \
*(.gnu.version_r) \
. = ALIGN(16); \
_rodata_end = ABSOLUTE(.); \
}
#define SECTION_u_boot_list(_vma_, _lma_) \
__u_boot_list _vma_ : _lma_ \
{ \
___u_boot_list_start = ABSOLUTE(.); \
KEEP(*(SORT(__u_boot_list*))); \
___u_boot_list_end = ABSOLUTE(.); \
}
#define SECTION_data(_vma_, _lma_) \
.data _vma_ : _lma_ \
{ \
_data_start = ABSOLUTE(.); \
*(.data) \
*(.data.*) \
*(.gnu.linkonce.d.*) \
*(.data1) \
*(.sdata) \
*(.sdata.*) \
*(.gnu.linkonce.s.*) \
*(.sdata2) \
*(.sdata2.*) \
*(.gnu.linkonce.s2.*) \
*(.jcr) \
*(.eh_frame) \
*(.dynamic) \
*(.gnu.version_d) \
_data_end = ABSOLUTE(.); \
}
#define SECTION_lit4(_vma_, _lma_) \
.lit4 _vma_ : _lma_ \
{ \
_lit4_start = ABSOLUTE(.); \
*(*.lit4) \
*(.gnu.linkonce.lit4.*) \
_lit4_end = ABSOLUTE(.); \
}
#define SECTION_bss(_vma_, _lma_) \
.bss _vma_ : _lma_ \
{ \
. = ALIGN(8); \
_bss_start = ABSOLUTE(.); \
__bss_start = ABSOLUTE(.); \
*(.dynsbss) \
*(.sbss) \
*(.sbss.*) \
*(.gnu.linkonce.sb.*) \
*(.scommon) \
*(.sbss2) \
*(.sbss2.*) \
*(.gnu.linkonce.sb2.*) \
*(.dynbss) \
*(.bss) \
*(.bss.*) \
*(.gnu.linkonce.b.*) \
*(COMMON) \
*(.sram.bss) \
. = ALIGN(8); \
_bss_end = ABSOLUTE(.); \
__bss_end = ABSOLUTE(.); \
_end = ALIGN(0x8); \
PROVIDE(end = ALIGN(0x8)); \
_stack_sentry = ALIGN(0x8); \
}
#define SECTION_debug \
.debug 0 : { *(.debug) } \
.line 0 : { *(.line) } \
.debug_srcinfo 0 : { *(.debug_srcinfo) } \
.debug_sfnames 0 : { *(.debug_sfnames) } \
.debug_aranges 0 : { *(.debug_aranges) } \
.debug_pubnames 0 : { *(.debug_pubnames) } \
.debug_info 0 : { *(.debug_info) } \
.debug_abbrev 0 : { *(.debug_abbrev) } \
.debug_line 0 : { *(.debug_line) } \
.debug_frame 0 : { *(.debug_frame) } \
.debug_str 0 : { *(.debug_str) } \
.debug_loc 0 : { *(.debug_loc) } \
.debug_macinfo 0 : { *(.debug_macinfo) } \
.debug_weaknames 0 : { *(.debug_weaknames) } \
.debug_funcnames 0 : { *(.debug_funcnames) } \
.debug_typenames 0 : { *(.debug_typenames) } \
.debug_varnames 0 : { *(.debug_varnames) }
#define SECTION_xtensa \
.xt.insn 0 : \
{ \
KEEP (*(.xt.insn)) \
KEEP (*(.gnu.linkonce.x.*)) \
} \
.xt.prop 0 : \
{ \
KEEP (*(.xt.prop)) \
KEEP (*(.xt.prop.*)) \
KEEP (*(.gnu.linkonce.prop.*)) \
} \
.xt.lit 0 : \
{ \
KEEP (*(.xt.lit)) \
KEEP (*(.xt.lit.*)) \
KEEP (*(.gnu.linkonce.p.*)) \
} \
.xt.profile_range 0 : \
{ \
KEEP (*(.xt.profile_range)) \
KEEP (*(.gnu.linkonce.profile_range.*)) \
} \
.xt.profile_ranges 0 : \
{ \
KEEP (*(.xt.profile_ranges)) \
KEEP (*(.gnu.linkonce.xt.profile_ranges.*)) \
} \
.xt.profile_files 0 : \
{ \
KEEP (*(.xt.profile_files)) \
KEEP (*(.gnu.linkonce.xt.profile_files.*)) \
}
#endif /* _XTENSA_LDSCRIPT_H */
|
