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Force the AArch64 linker backend to refuse to link when it encounters unresoleable...
[thirdparty/binutils-gdb.git] / ld / scripttempl / xstormy16.sc
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2571583a 1# Copyright (C) 2014-2017 Free Software Foundation, Inc.
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2#
3# Copying and distribution of this file, with or without modification,
4# are permitted in any medium without royalty provided the copyright
5# notice and this notice are preserved.
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6#
7# Unusual variables checked by this code:
8# NOP - two byte opcode for no-op (defaults to 0)
9# INITIAL_READONLY_SECTIONS - at start of text segment
10# OTHER_READONLY_SECTIONS - other than .text .init .rodata ...
11# (e.g., .PARISC.milli)
12# OTHER_TEXT_SECTIONS - these get put in .text when relocating
13# OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ...
14# (e.g., .PARISC.global)
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15# OTHER_SECTIONS - at the end
16# EXECUTABLE_SYMBOLS - symbols that must be defined for an
17# executable (e.g., _DYNAMIC_LINK)
18# TEXT_START_SYMBOLS - symbols that appear at the start of the
19# .text section.
20# DATA_START_SYMBOLS - symbols that appear at the start of the
21# .data section.
22# OTHER_GOT_SYMBOLS - symbols defined just before .got.
23# OTHER_GOT_SECTIONS - sections just after .got and .sdata.
24# OTHER_BSS_SYMBOLS - symbols that appear at the start of the
25# .bss section besides __bss_start.
26# INPUT_FILES - INPUT command of files to always include
27# INIT_START, INIT_END - statements just before and just after
28# combination of .init sections.
29# FINI_START, FINI_END - statements just before and just after
30# combination of .fini sections.
31#
32# When adding sections, do note that the names of some sections are used
33# when specifying the start address of the next.
34#
35
36# Many sections come in three flavours. There is the 'real' section,
37# like ".data". Then there are the per-procedure or per-variable
38# sections, generated by -ffunction-sections and -fdata-sections in GCC,
39# and useful for --gc-sections, which for a variable "foo" might be
40# ".data.foo". Then there are the linkonce sections, for which the linker
41# eliminates duplicates, which are named like ".gnu.linkonce.d.foo".
42# The exact correspondences are:
43#
44# Section Linkonce section
45# .text .gnu.linkonce.t.foo
46# .rodata .gnu.linkonce.r.foo
47# .data .gnu.linkonce.d.foo
48# .bss .gnu.linkonce.b.foo
49# .sdata .gnu.linkonce.s.foo
50# .sbss .gnu.linkonce.sb.foo
51# .sdata2 .gnu.linkonce.s2.foo
52# .sbss2 .gnu.linkonce.sb2.foo
53#
54# Each of these can also have corresponding .rel.* and .rela.* sections.
55
56test -z "$ENTRY" && ENTRY=_start
57test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT}
58test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT}
59if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi
60test -z "${ELFSIZE}" && ELFSIZE=32
61test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8"
ec2d9b29 62CTOR=".ctors ${CONSTRUCTING-0} :
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63 {
64 ${CONSTRUCTING+${CTOR_START}}
65 /* gcc uses crtbegin.o to find the start of
66 the constructors, so we make sure it is
67 first. Because this is a wildcard, it
68 doesn't matter if the user does not
69 actually link against crtbegin.o; the
70 linker won't look for a file to match a
71 wildcard. The wildcard also means that it
72 doesn't matter which directory crtbegin.o
73 is in. */
74
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75 KEEP (*crtbegin.o(.ctors))
76 KEEP (*crtbegin?.o(.ctors))
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77
78 /* We don't want to include the .ctor section from
bd6791bc 79 the crtend.o file until after the sorted ctors.
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80 The .ctor section from the crtend file contains the
81 end of ctors marker and it must be last */
82
40cf2291 83 KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .ctors))
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84 KEEP (*(SORT(.ctors.*)))
85 KEEP (*(.ctors))
86 ${CONSTRUCTING+${CTOR_END}}
87 } > ROM"
88
ec2d9b29 89DTOR=" .dtors ${CONSTRUCTING-0} :
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90 {
91 ${CONSTRUCTING+${DTOR_START}}
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92 KEEP (*crtbegin.o(.dtors))
93 KEEP (*crtbegin?.o(.dtors))
94 KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .dtors))
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95 KEEP (*(SORT(.dtors.*)))
96 KEEP (*(.dtors))
97 ${CONSTRUCTING+${DTOR_END}}
98 } > ROM"
99
100cat <<EOF
2571583a 101/* Copyright (C) 2014-2017 Free Software Foundation, Inc.
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102
103 Copying and distribution of this script, with or without modification,
104 are permitted in any medium without royalty provided the copyright
105 notice and this notice are preserved. */
106
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107OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}",
108 "${LITTLE_OUTPUT_FORMAT}")
109OUTPUT_ARCH(${OUTPUT_ARCH})
b34c1498 110${RELOCATING+ENTRY(${ENTRY})}
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111
112${RELOCATING+${LIB_SEARCH_DIRS}}
113${RELOCATING+${EXECUTABLE_SYMBOLS}}
114${RELOCATING+${INPUT_FILES}}
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115${RELOCATING- /* For some reason, the Solaris linker makes bad executables
116 if gld -r is used and the intermediate file has sections starting
117 at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld
118 bug. But for now assigning the zero vmas works. */}
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119
120/* There are two memory regions we care about, one from 0 through 0x7F00
121 that is RAM and one from 0x8000 up which is ROM. */
122MEMORY
123{
124 RAM (w) : ORIGIN = 0, LENGTH = 0x7F00
125 ROM (!w) : ORIGIN = 0x8000, LENGTH = 0xFF8000
126}
127
128SECTIONS
129{
ec2d9b29 130 .data ${RELOCATING-0} :
93fbbb04 131 {
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132 ${RELOCATING+__rdata = .;}
133 ${RELOCATING+__data = .;}
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134 ${RELOCATING+${DATA_START_SYMBOLS}}
135 *(.data)
136 ${RELOCATING+*(.data.*)}
137 ${RELOCATING+*(.gnu.linkonce.d.*)}
138 ${CONSTRUCTING+SORT(CONSTRUCTORS)}
139 } > RAM
140 ${RELOCATING+${OTHER_READWRITE_SECTIONS}}
141 ${RELOCATING+${OTHER_GOT_SYMBOLS}}
142 ${RELOCATING+${OTHER_GOT_SECTIONS}}
143 ${RELOCATING+_edata = .;}
144 ${RELOCATING+PROVIDE (edata = .);}
145 ${RELOCATING+__bss_start = .;}
146 ${RELOCATING+${OTHER_BSS_SYMBOLS}}
ec2d9b29 147 .bss ${RELOCATING-0} :
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148 {
149 *(.dynbss)
150 *(.bss)
151 ${RELOCATING+*(.bss.*)}
152 ${RELOCATING+*(.gnu.linkonce.b.*)}
153 *(COMMON)
154 /* Align here to ensure that the .bss section occupies space up to
155 _end. Align after .bss to ensure correct alignment even if the
156 .bss section disappears because there are no input sections. */
157 ${RELOCATING+. = ALIGN(${ALIGNMENT});}
158 } > RAM
827a1c67 159 ${RELOCATING+${OTHER_BSS_END_SYMBOLS}}
93fbbb04 160 ${RELOCATING+. = ALIGN(${ALIGNMENT});}
827a1c67 161 ${RELOCATING+${OTHER_END_SYMBOLS}}
93fbbb04 162 ${RELOCATING+_end = .;}
da1f2fec 163 ${RELOCATING+__stack = .;}
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164 ${RELOCATING+PROVIDE (end = .);}
165
166 /* Read-only sections in ROM. */
ec2d9b29 167 .int_vec ${RELOCATING-0} : { *(.int_vec) } ${RELOCATING+> ROM}
93fbbb04 168
ec2d9b29 169 .rodata ${RELOCATING-0} : { *(.rodata) ${RELOCATING+*(.rodata.*)} ${RELOCATING+*(.gnu.linkonce.r.*)} } ${RELOCATING+> ROM}
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170 ${RELOCATING+${CTOR}}
171 ${RELOCATING+${DTOR}}
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172 .jcr : { KEEP (*(.jcr)) } ${RELOCATING+> ROM}
173 .eh_frame : { KEEP (*(.eh_frame)) } ${RELOCATING+> ROM}
ec51c381 174 .gcc_except_table : { *(.gcc_except_table) *(.gcc_except_table.*) } ${RELOCATING+> ROM}
1ee7cf4c 175 .plt : { *(.plt) } ${RELOCATING+> ROM}
93fbbb04 176
ec2d9b29 177 .text ${RELOCATING-0} :
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178 {
179 ${RELOCATING+${TEXT_START_SYMBOLS}}
180 *(.text)
181 ${RELOCATING+*(.text.*)}
182 *(.stub)
183 /* .gnu.warning sections are handled specially by elf32.em. */
184 *(.gnu.warning)
185 ${RELOCATING+*(.gnu.linkonce.t.*)}
186 ${RELOCATING+${OTHER_TEXT_SECTIONS}}
1ee7cf4c 187 } ${RELOCATING+> ROM =${NOP-0}}
ec2d9b29 188 .init ${RELOCATING-0} :
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189 {
190 ${RELOCATING+${INIT_START}}
191 KEEP (*(.init))
192 ${RELOCATING+${INIT_END}}
1ee7cf4c 193 } ${RELOCATING+> ROM =${NOP-0}}
ec2d9b29 194 .fini ${RELOCATING-0} :
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195 {
196 ${RELOCATING+${FINI_START}}
197 KEEP (*(.fini))
198 ${RELOCATING+${FINI_END}}
1ee7cf4c 199 } ${RELOCATING+> ROM =${NOP-0}}
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200 ${RELOCATING+PROVIDE (__etext = .);}
201 ${RELOCATING+PROVIDE (_etext = .);}
202 ${RELOCATING+PROVIDE (etext = .);}
203 ${RELOCATING+${OTHER_READONLY_SECTIONS}}
204
205
206 /* Stabs debugging sections. */
207 .stab 0 : { *(.stab) }
208 .stabstr 0 : { *(.stabstr) }
209 .stab.excl 0 : { *(.stab.excl) }
210 .stab.exclstr 0 : { *(.stab.exclstr) }
211 .stab.index 0 : { *(.stab.index) }
212 .stab.indexstr 0 : { *(.stab.indexstr) }
213
214 .comment 0 : { *(.comment) }
215
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216EOF
217
d061dfac 218. $srcdir/scripttempl/DWARF.sc
2a995fc1 219
ceb0a680 220cat <<EOF
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221 ${RELOCATING+${OTHER_RELOCATING_SECTIONS}}
222
223 /* These must appear regardless of ${RELOCATING}. */
224 ${OTHER_SECTIONS}
225}
226EOF