powerpc/mm: Rework context management for CPUs with no hash table
[deliverable/linux.git] / arch / powerpc / kernel / vdso64 / vdso64.lds.S
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1/*
2 * This is the infamous ld script for the 64 bits vdso
3 * library
4 */
5#include <asm/vdso.h>
6
7OUTPUT_FORMAT("elf64-powerpc", "elf64-powerpc", "elf64-powerpc")
8OUTPUT_ARCH(powerpc:common64)
9ENTRY(_start)
10
11SECTIONS
12{
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13 . = VDSO64_LBASE + SIZEOF_HEADERS;
14
15 .hash : { *(.hash) } :text
16 .gnu.hash : { *(.gnu.hash) }
17 .dynsym : { *(.dynsym) }
18 .dynstr : { *(.dynstr) }
19 .gnu.version : { *(.gnu.version) }
20 .gnu.version_d : { *(.gnu.version_d) }
21 .gnu.version_r : { *(.gnu.version_r) }
22
23 .note : { *(.note.*) } :text :note
24
25 . = ALIGN(16);
26 .text : {
fac23fe4 27 *(.text .stub .text.* .gnu.linkonce.t.* __ftr_alt_*)
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28 *(.sfpr .glink)
29 } :text
30 PROVIDE(__etext = .);
31 PROVIDE(_etext = .);
32 PROVIDE(etext = .);
33
34 . = ALIGN(8);
35 __ftr_fixup : { *(__ftr_fixup) }
36
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37 . = ALIGN(8);
38 __lwsync_fixup : { *(__lwsync_fixup) }
39
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40 . = ALIGN(8);
41 __fw_ftr_fixup : { *(__fw_ftr_fixup) }
42
43 /*
44 * Other stuff is appended to the text segment:
45 */
46 .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
47 .rodata1 : { *(.rodata1) }
48
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49 .dynamic : { *(.dynamic) } :text :dynamic
50
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51 .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr
52 .eh_frame : { KEEP (*(.eh_frame)) } :text
53 .gcc_except_table : { *(.gcc_except_table) }
2ca7633d 54 .rela.dyn ALIGN(8) : { *(.rela.dyn) }
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55
56 .opd ALIGN(8) : { KEEP (*(.opd)) }
57 .got ALIGN(8) : { *(.got .toc) }
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58
59 _end = .;
60 PROVIDE(end = .);
61
62 /*
63 * Stabs debugging sections are here too.
64 */
65 .stab 0 : { *(.stab) }
66 .stabstr 0 : { *(.stabstr) }
67 .stab.excl 0 : { *(.stab.excl) }
68 .stab.exclstr 0 : { *(.stab.exclstr) }
69 .stab.index 0 : { *(.stab.index) }
70 .stab.indexstr 0 : { *(.stab.indexstr) }
71 .comment 0 : { *(.comment) }
72
73 /*
74 * DWARF debug sections.
75 * Symbols in the DWARF debugging sections are relative to the beginning
76 * of the section so we begin them at 0.
77 */
78 /* DWARF 1 */
79 .debug 0 : { *(.debug) }
80 .line 0 : { *(.line) }
81 /* GNU DWARF 1 extensions */
82 .debug_srcinfo 0 : { *(.debug_srcinfo) }
83 .debug_sfnames 0 : { *(.debug_sfnames) }
84 /* DWARF 1.1 and DWARF 2 */
85 .debug_aranges 0 : { *(.debug_aranges) }
86 .debug_pubnames 0 : { *(.debug_pubnames) }
87 /* DWARF 2 */
88 .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
89 .debug_abbrev 0 : { *(.debug_abbrev) }
90 .debug_line 0 : { *(.debug_line) }
91 .debug_frame 0 : { *(.debug_frame) }
92 .debug_str 0 : { *(.debug_str) }
93 .debug_loc 0 : { *(.debug_loc) }
94 .debug_macinfo 0 : { *(.debug_macinfo) }
95 /* SGI/MIPS DWARF 2 extensions */
96 .debug_weaknames 0 : { *(.debug_weaknames) }
97 .debug_funcnames 0 : { *(.debug_funcnames) }
98 .debug_typenames 0 : { *(.debug_typenames) }
99 .debug_varnames 0 : { *(.debug_varnames) }
100
101 /DISCARD/ : {
102 *(.note.GNU-stack)
103 *(.branch_lt)
104 *(.data .data.* .gnu.linkonce.d.* .sdata*)
105 *(.bss .sbss .dynbss .dynsbss)
106 }
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107}
108
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109/*
110 * Very old versions of ld do not recognize this name token; use the constant.
111 */
112#define PT_GNU_EH_FRAME 0x6474e550
113
114/*
115 * We must supply the ELF program headers explicitly to get just one
116 * PT_LOAD segment, and set the flags explicitly to make segments read-only.
117 */
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118PHDRS
119{
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120 text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */
121 dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
122 note PT_NOTE FLAGS(4); /* PF_R */
123 eh_frame_hdr PT_GNU_EH_FRAME;
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124}
125
126/*
127 * This controls what symbols we export from the DSO.
128 */
129VERSION
130{
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131 VDSO_VERSION_STRING {
132 global:
133 /*
134 * Has to be there for the kernel to find
135 */
136 __kernel_datapage_offset;
137
138 __kernel_get_syscall_map;
139 __kernel_gettimeofday;
140 __kernel_clock_gettime;
141 __kernel_clock_getres;
142 __kernel_get_tbfreq;
143 __kernel_sync_dicache;
144 __kernel_sync_dicache_p5;
145 __kernel_sigtramp_rt64;
146
147 local: *;
148 };
1da177e4 149}
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