1/* Default linker script, for normal executables */
2/* Copyright (C) 2014-2018 Free Software Foundation, Inc.
3   Copying and distribution of this script, with or without modification,
4   are permitted in any medium without royalty provided the copyright
5   notice and this notice are preserved.  */
6/* -*- Makefile -*- */
7OUTPUT_FORMAT("elf64-littleaarch64", "elf64-bigaarch64",
8              "elf64-littleaarch64")
9OUTPUT_ARCH(aarch64)
10ENTRY(_start)
11
12PHDRS
13{
14  phdr PT_PHDR PHDRS;
15  ro PT_LOAD FILEHDR PHDRS;
16  rw PT_LOAD;
17  tls PT_TLS;
18  L4_DEFINE_L4PHDRS
19}
20
21
22SECTIONS
23{
24  L4_DEFINE_ARM64_KERNEL_ENTRY_SYMS
25
26  /* Read-only sections, merged into text segment: */
27  PROVIDE (__executable_start = SEGMENT_START("text-segment", 0x00400000)); . = SEGMENT_START("text-segment", 0x00400000) + SIZEOF_HEADERS;
28  .interp         : { *(.interp) } :ro
29  .note.gnu.build-id : { *(.note.gnu.build-id) }
30  .hash           : { *(.hash) }
31  .gnu.hash       : { *(.gnu.hash) }
32  .dynsym         : { *(.dynsym) }
33  .dynstr         : { *(.dynstr) }
34  .gnu.version    : { *(.gnu.version) }
35  .gnu.version_d  : { *(.gnu.version_d) }
36  .gnu.version_r  : { *(.gnu.version_r) }
37  .rela.init      : { *(.rela.init) }
38  .rela.text      : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) }
39  .rela.fini      : { *(.rela.fini) }
40  .rela.rodata    : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) }
41  .rela.data.rel.ro   : { *(.rela.data.rel.ro .rela.data.rel.ro.* .rela.gnu.linkonce.d.rel.ro.*) }
42  .rela.data      : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) }
43  .rela.tdata	  : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) }
44  .rela.tbss	  : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) }
45  .rela.ctors     : { *(.rela.ctors) }
46  .rela.dtors     : { *(.rela.dtors) }
47  .rela.got       : { *(.rela.got) }
48  .rela.bss       : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) }
49  .rela.ifunc     : { *(.rela.ifunc) }
50  .rela.plt       :
51    {
52      *(.rela.plt)
53      PROVIDE_HIDDEN (__rela_iplt_start = .);
54      *(.rela.iplt)
55      PROVIDE_HIDDEN (__rela_iplt_end = .);
56    }
57  .init           :
58  {
59    KEEP (*(SORT_NONE(.init)))
60  } =0
61  .plt            : { *(.plt) *(.iplt) }
62  .text           :
63  {
64    *(.text.unlikely .text.*_unlikely .text.unlikely.*)
65    *(.text.exit .text.exit.*)
66    *(.text.startup .text.startup.*)
67    *(.text.hot .text.hot.*)
68    *(.text .stub .text.* .gnu.linkonce.t.*)
69    /* .gnu.warning sections are handled specially by elf32.em.  */
70    *(.gnu.warning)
71  } =0
72  .fini           :
73  {
74    KEEP (*(SORT_NONE(.fini)))
75  } =0
76  PROVIDE (__etext = .);
77  PROVIDE (_etext = .);
78  PROVIDE (etext = .);
79  .rol4re_elf_aux : {
80    KEEP (*(.rol4re_elf_aux))
81  } : ro : l4re_aux
82  .rodata         : { *(.rodata .rodata.* .gnu.linkonce.r.*) } : ro
83  .rodata1        : { *(.rodata1) }
84  .eh_frame_hdr : { *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) }
85  .eh_frame       : ONLY_IF_RO { KEEP (*(.eh_frame)) *(.eh_frame.*) }
86  .gcc_except_table   : ONLY_IF_RO { *(.gcc_except_table
87  .gcc_except_table.*) }
88  .gnu_extab   : ONLY_IF_RO { *(.gnu_extab*) }
89  /* These sections are generated by the Sun/Oracle C++ compiler.  */
90  .exception_ranges   : ONLY_IF_RO { *(.exception_ranges
91  .exception_ranges*) }
92  /* Adjust the address for the data segment.  We want to adjust up to
93     the same address within the page on the next page up.  */
94  . = ALIGN(CONSTANT (MAXPAGESIZE)) + (. & (CONSTANT (MAXPAGESIZE) - 1));
95  /* Exception handling  */
96  .eh_frame       : ONLY_IF_RW { KEEP (*(.eh_frame)) *(.eh_frame.*) } :rw
97  .gnu_extab      : ONLY_IF_RW { *(.gnu_extab) } :rw
98  .gcc_except_table   : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) } :rw
99  .exception_ranges   : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) } :rw
100  /* Thread Local Storage sections  */
101  .tdata	  : { *(.tdata .tdata.* .gnu.linkonce.td.*) } :rw : tls
102  .tbss		  : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
103  .preinit_array     :
104  {
105    PROVIDE_HIDDEN (__preinit_array_start = .);
106    KEEP (*(.preinit_array))
107    PROVIDE_HIDDEN (__preinit_array_end = .);
108  } : rw
109  .init_array     :
110  {
111    PROVIDE_HIDDEN (__init_array_start = .);
112    KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
113    KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors))
114    PROVIDE_HIDDEN (__init_array_end = .);
115  }
116  .fini_array     :
117  {
118    PROVIDE_HIDDEN (__fini_array_start = .);
119    KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
120    KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors))
121    PROVIDE_HIDDEN (__fini_array_end = .);
122  }
123  .ctors          :
124  {
125    /* gcc uses crtbegin.o to find the start of
126       the constructors, so we make sure it is
127       first.  Because this is a wildcard, it
128       doesn't matter if the user does not
129       actually link against crtbegin.o; the
130       linker won't look for a file to match a
131       wildcard.  The wildcard also means that it
132       doesn't matter which directory crtbegin.o
133       is in.  */
134    KEEP (*crtbegin.o(.ctors))
135    KEEP (*crtbegin?.o(.ctors))
136    /* We don't want to include the .ctor section from
137       the crtend.o file until after the sorted ctors.
138       The .ctor section from the crtend file contains the
139       end of ctors marker and it must be last */
140    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
141    KEEP (*(SORT(.ctors.*)))
142    KEEP (*(.ctors))
143  }
144  .dtors          :
145  {
146    KEEP (*crtbegin.o(.dtors))
147    KEEP (*crtbegin?.o(.dtors))
148    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
149    KEEP (*(SORT(.dtors.*)))
150    KEEP (*(.dtors))
151  }
152  .jcr            : { KEEP (*(.jcr)) }
153  .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) }
154  .dynamic        : { *(.dynamic) }
155  .got            : { *(.got) *(.igot) }
156  .got.plt        : { *(.got.plt)  *(.igot.plt) }
157  .data           :
158  {
159    __data_start = . ;
160    *(.data .data.* .gnu.linkonce.d.*)
161    SORT(CONSTRUCTORS)
162  }
163  .data1          : { *(.data1) }
164  _edata = .; PROVIDE (edata = .);
165  . = .;
166  __bss_start = .;
167  __bss_start__ = .;
168  .bss            :
169  {
170   *(.dynbss)
171   *(.bss .bss.* .gnu.linkonce.b.*)
172   *(COMMON)
173   /* Align here to ensure that the .bss section occupies space up to
174      _end.  Align after .bss to ensure correct alignment even if the
175      .bss section disappears because there are no input sections.
176      FIXME: Why do we need it? When there is no .bss section, we don't
177      pad the .data section.  */
178   . = ALIGN(. != 0 ? 64 / 8 : 1);
179  }
180  _bss_end__ = . ; __bss_end__ = . ;
181  . = ALIGN(64 / 8);
182  . = SEGMENT_START("ldata-segment", .);
183  . = ALIGN(64 / 8);
184  __end__ = . ;
185  _end = .; PROVIDE (end = .);
186  .stack         0x80000 :
187  {
188    _stack = .;
189    *(.stack)
190  }
191  /* Stabs debugging sections.  */
192  .stab          0 : { *(.stab) }
193  .stabstr       0 : { *(.stabstr) }
194  .stab.excl     0 : { *(.stab.excl) }
195  .stab.exclstr  0 : { *(.stab.exclstr) }
196  .stab.index    0 : { *(.stab.index) }
197  .stab.indexstr 0 : { *(.stab.indexstr) }
198  .comment       0 : { *(.comment) }
199  /* DWARF debug sections.
200     Symbols in the DWARF debugging sections are relative to the beginning
201     of the section so we begin them at 0.  */
202  /* DWARF 1 */
203  .debug          0 : { *(.debug) }
204  .line           0 : { *(.line) }
205  /* GNU DWARF 1 extensions */
206  .debug_srcinfo  0 : { *(.debug_srcinfo) }
207  .debug_sfnames  0 : { *(.debug_sfnames) }
208  /* DWARF 1.1 and DWARF 2 */
209  .debug_aranges  0 : { *(.debug_aranges) }
210  .debug_pubnames 0 : { *(.debug_pubnames) }
211  /* DWARF 2 */
212  .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
213  .debug_abbrev   0 : { *(.debug_abbrev) }
214  .debug_line     0 : { *(.debug_line .debug_line.* .debug_line_end ) }
215  .debug_frame    0 : { *(.debug_frame) }
216  .debug_str      0 : { *(.debug_str) }
217  .debug_loc      0 : { *(.debug_loc) }
218  .debug_macinfo  0 : { *(.debug_macinfo) }
219  /* SGI/MIPS DWARF 2 extensions */
220  .debug_weaknames 0 : { *(.debug_weaknames) }
221  .debug_funcnames 0 : { *(.debug_funcnames) }
222  .debug_typenames 0 : { *(.debug_typenames) }
223  .debug_varnames  0 : { *(.debug_varnames) }
224  /* DWARF 3 */
225  .debug_pubtypes 0 : { *(.debug_pubtypes) }
226  .debug_ranges   0 : { *(.debug_ranges) }
227  /* DWARF Extension.  */
228  .debug_macro    0 : { *(.debug_macro) }
229  .debug_addr     0 : { *(.debug_addr) }
230  .ARM.attributes 0 : { KEEP (*(.ARM.attributes)) KEEP (*(.gnu.attributes)) }
231  .note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }
232  /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) }
233}
234