xref: /freebsd/sys/conf/ldscript.amd64 (revision edca4938f74db18d091868237592abbf7e718669)
1/* $FreeBSD$ */
2OUTPUT_FORMAT("elf64-x86-64-freebsd", "elf64-x86-64-freebsd", "elf64-x86-64-freebsd")
3OUTPUT_ARCH(i386:x86-64)
4ENTRY(btext)
5SEARCH_DIR("/usr/lib");
6SECTIONS
7{
8  /* Read-only sections, merged into text segment: */
9  kernphys = 0x200000; /* 2MB superpage size */
10  . = kernbase + kernphys + SIZEOF_HEADERS;
11  /*
12   * Use the AT keyword in order to set the right LMA that contains
13   * the physical address where the section should be loaded. This is
14   * needed for the Xen loader which honours the LMA.
15   */
16  .interp         : AT (kernphys + SIZEOF_HEADERS) { *(.interp) }
17  .hash           : { *(.hash) }
18  .gnu.hash       : { *(.gnu.hash) }
19  .dynsym         : { *(.dynsym) }
20  .dynstr         : { *(.dynstr) }
21  .gnu.version    : { *(.gnu.version) }
22  .gnu.version_d  : { *(.gnu.version_d) }
23  .gnu.version_r  : { *(.gnu.version_r) }
24  .rel.init       : { *(.rel.init) }
25  .rela.init      : { *(.rela.init) }
26  .rel.text       : { *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) }
27  .rela.text      : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) }
28  .rel.fini       : { *(.rel.fini) }
29  .rela.fini      : { *(.rela.fini) }
30  .rel.rodata     : { *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) }
31  .rela.rodata    : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) }
32  .rel.data.rel.ro   : { *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*) }
33  .rela.data.rel.ro   : { *(.rela.data.rel.ro* .rela.gnu.linkonce.d.rel.ro.*) }
34  .rel.data       : { *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) }
35  .rela.data      : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) }
36  .rel.tdata	  : { *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) }
37  .rela.tdata	  : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) }
38  .rel.tbss	  : { *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) }
39  .rela.tbss	  : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) }
40  .rel.ctors      : { *(.rel.ctors) }
41  .rela.ctors     : { *(.rela.ctors) }
42  .rel.dtors      : { *(.rel.dtors) }
43  .rela.dtors     : { *(.rela.dtors) }
44  .rel.got        : { *(.rel.got) }
45  .rela.got       : { *(.rela.got) }
46  .rel.bss        : { *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) }
47  .rela.bss       : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) }
48  .rel.ldata      : { *(.rel.ldata .rel.ldata.* .rel.gnu.linkonce.l.*) }
49  .rela.ldata     : { *(.rela.ldata .rela.ldata.* .rela.gnu.linkonce.l.*) }
50  .rel.lbss       : { *(.rel.lbss .rel.lbss.* .rel.gnu.linkonce.lb.*) }
51  .rela.lbss      : { *(.rela.lbss .rela.lbss.* .rela.gnu.linkonce.lb.*) }
52  .rel.lrodata    : { *(.rel.lrodata .rel.lrodata.* .rel.gnu.linkonce.lr.*) }
53  .rela.lrodata   : { *(.rela.lrodata .rela.lrodata.* .rela.gnu.linkonce.lr.*) }
54  .rel.plt        : { *(.rel.plt) }
55  .rela.plt       : { *(.rela.plt) }
56  .init           :
57  {
58    KEEP (*(.init))
59  } =0xCCCCCCCC
60  .plt            : { *(.plt) }
61  .text           :
62  {
63    *(.text .stub .text.* .gnu.linkonce.t.*)
64    KEEP (*(.text.*personality*))
65    /* .gnu.warning sections are handled specially by elf32.em.  */
66    *(.gnu.warning)
67  } =0xCCCCCCCC
68  .fini           :
69  {
70    KEEP (*(.fini))
71  } =0xCCCCCCCC
72  PROVIDE (__etext = .);
73  PROVIDE (_etext = .);
74  PROVIDE (etext = .);
75  .rodata         : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
76  .rodata1        : { *(.rodata1) }
77  .note.gnu.build-id : {
78    PROVIDE (__build_id_start = .);
79    *(.note.gnu.build-id)
80    PROVIDE (__build_id_end = .);
81  }
82  .eh_frame_hdr : { *(.eh_frame_hdr) }
83  .eh_frame       : ONLY_IF_RO { KEEP (*(.eh_frame)) }
84  .gcc_except_table   : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) }
85  /* Adjust the address for the data segment.  We want to adjust up to
86     the same address within the page on the next page up.  */
87  . = ALIGN (CONSTANT (MAXPAGESIZE)) - ((CONSTANT (MAXPAGESIZE) - .) & (CONSTANT (MAXPAGESIZE) - 1)); . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE));
88  PROVIDE (brwsection = .);
89  /* Exception handling  */
90  .eh_frame       : ONLY_IF_RW { KEEP (*(.eh_frame)) }
91  .gcc_except_table   : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) }
92  /* Thread Local Storage sections  */
93  .tdata	  : { *(.tdata .tdata.* .gnu.linkonce.td.*) }
94  .tbss		  : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
95  .preinit_array     :
96  {
97    PROVIDE_HIDDEN (__preinit_array_start = .);
98    KEEP (*(.preinit_array))
99    PROVIDE_HIDDEN (__preinit_array_end = .);
100  }
101  .init_array     :
102  {
103     PROVIDE_HIDDEN (__init_array_start = .);
104     KEEP (*(SORT(.init_array.*)))
105     KEEP (*(.init_array))
106     PROVIDE_HIDDEN (__init_array_end = .);
107  }
108  .fini_array     :
109  {
110    PROVIDE_HIDDEN (__fini_array_start = .);
111    KEEP (*(.fini_array))
112    KEEP (*(SORT(.fini_array.*)))
113    PROVIDE_HIDDEN (__fini_array_end = .);
114  }
115  _start_ctors = .;
116  PROVIDE (start_ctors = .);
117  .ctors          :
118  {
119    /* gcc uses crtbegin.o to find the start of
120       the constructors, so we make sure it is
121       first.  Because this is a wildcard, it
122       doesn't matter if the user does not
123       actually link against crtbegin.o; the
124       linker won't look for a file to match a
125       wildcard.  The wildcard also means that it
126       doesn't matter which directory crtbegin.o
127       is in.  */
128    KEEP (*crtbegin.o(.ctors))
129    KEEP (*crtbegin?.o(.ctors))
130    /* We don't want to include the .ctor section from
131       the crtend.o file until after the sorted ctors.
132       The .ctor section from the crtend file contains the
133       end of ctors marker and it must be last */
134    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
135    KEEP (*(SORT(.ctors.*)))
136    KEEP (*(.ctors))
137  }
138  _stop_ctors = .;
139  PROVIDE (stop_ctors = .);
140  .dtors          :
141  {
142    KEEP (*crtbegin.o(.dtors))
143    KEEP (*crtbegin?.o(.dtors))
144    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
145    KEEP (*(SORT(.dtors.*)))
146    KEEP (*(.dtors))
147  }
148  .jcr            : { KEEP (*(.jcr)) }
149  .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro* .gnu.linkonce.d.rel.ro.*) }
150  .dynamic        : { *(.dynamic) }
151  .got            : { *(.got) }
152  . = DATA_SEGMENT_RELRO_END (24, .);
153  .got.plt        : { *(.got.plt) }
154  . = ALIGN(128);
155  .data.read_frequently :
156  {
157    *(SORT_BY_ALIGNMENT(.data.read_frequently))
158  }
159  .data.read_mostly :
160  {
161    *(.data.read_mostly)
162  }
163  . = ALIGN(128);
164  .data.exclusive_cache_line :
165  {
166    *(.data.exclusive_cache_line)
167  }
168  . = ALIGN(128);
169  .data           :
170  {
171    *(.data .data.* .gnu.linkonce.d.*)
172    KEEP (*(.gnu.linkonce.d.*personality*))
173  }
174  .data1          : { *(.data1) }
175  _edata = .; PROVIDE (edata = .);
176  __bss_start = .;
177  .bss            :
178  {
179   *(.dynbss)
180   *(.bss .bss.* .gnu.linkonce.b.*)
181   *(COMMON)
182   /* Align here to ensure that the .bss section occupies space up to
183      _end.  Align after .bss to ensure correct alignment even if the
184      .bss section disappears because there are no input sections.
185      FIXME: Why do we need it? When there is no .bss section, we don't
186      pad the .data section.  */
187   . = ALIGN(. != 0 ? 64 / 8 : 1);
188  }
189  .lbss   :
190  {
191    *(.dynlbss)
192    *(.lbss .lbss.* .gnu.linkonce.lb.*)
193    *(LARGE_COMMON)
194  }
195  . = ALIGN(64 / 8);
196  .lrodata   ALIGN(CONSTANT (MAXPAGESIZE)) + (. & (CONSTANT (MAXPAGESIZE) - 1)) :
197  {
198    *(.lrodata .lrodata.* .gnu.linkonce.lr.*)
199  }
200  .ldata   ALIGN(CONSTANT (MAXPAGESIZE)) + (. & (CONSTANT (MAXPAGESIZE) - 1)) :
201  {
202    *(.ldata .ldata.* .gnu.linkonce.l.*)
203    . = ALIGN(. != 0 ? 64 / 8 : 1);
204  }
205  . = ALIGN(64 / 8);
206  _end = .; PROVIDE (end = .);
207  . = DATA_SEGMENT_END (.);
208  /* Stabs debugging sections.  */
209  .stab          0 : { *(.stab) }
210  .stabstr       0 : { *(.stabstr) }
211  .stab.excl     0 : { *(.stab.excl) }
212  .stab.exclstr  0 : { *(.stab.exclstr) }
213  .stab.index    0 : { *(.stab.index) }
214  .stab.indexstr 0 : { *(.stab.indexstr) }
215  .comment       0 : { *(.comment) }
216  /* DWARF debug sections.
217     Symbols in the DWARF debugging sections are relative to the beginning
218     of the section so we begin them at 0.  */
219  /* DWARF 1 */
220  .debug          0 : { *(.debug) }
221  .line           0 : { *(.line) }
222  /* GNU DWARF 1 extensions */
223  .debug_srcinfo  0 : { *(.debug_srcinfo) }
224  .debug_sfnames  0 : { *(.debug_sfnames) }
225  /* DWARF 1.1 and DWARF 2 */
226  .debug_aranges  0 : { *(.debug_aranges) }
227  .debug_pubnames 0 : { *(.debug_pubnames) }
228  /* DWARF 2 */
229  .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
230  .debug_abbrev   0 : { *(.debug_abbrev) }
231  .debug_line     0 : { *(.debug_line) }
232  .debug_frame    0 : { *(.debug_frame) }
233  .debug_str      0 : { *(.debug_str) }
234  .debug_loc      0 : { *(.debug_loc) }
235  .debug_macinfo  0 : { *(.debug_macinfo) }
236  /* SGI/MIPS DWARF 2 extensions */
237  .debug_weaknames 0 : { *(.debug_weaknames) }
238  .debug_funcnames 0 : { *(.debug_funcnames) }
239  .debug_typenames 0 : { *(.debug_typenames) }
240  .debug_varnames  0 : { *(.debug_varnames) }
241  /* DWARF 3 */
242  .debug_pubtypes 0 : { *(.debug_pubtypes) }
243  .debug_ranges   0 : { *(.debug_ranges) }
244  .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
245  /DISCARD/ : { *(.note.GNU-stack) }
246}
247