1 /* SPDX-License-Identifier: GPL-2.0-only */ !! 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* 2 /*
3 * Adapted from arm64 version. !! 3 * Copyright (C) 2015 Imagination Technologies
4 * !! 4 * Author: Alex Smith <alex.smith@imgtec.com>
5 * GNU linker script for the VDSO library. <<
6 * <<
7 * Copyright (C) 2012 ARM Limited <<
8 * <<
9 * Author: Will Deacon <will.deacon@arm.com> <<
10 * Heavily based on the vDSO linker scripts fo <<
11 */ 5 */
12 6
13 #include <linux/const.h> !! 7 #include <asm/sgidefs.h>
14 #include <asm/page.h> <<
15 #include <asm/vdso.h> <<
16 8
17 OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm !! 9 #if _MIPS_SIM == _MIPS_SIM_ABI64
18 OUTPUT_ARCH(arm) !! 10 OUTPUT_FORMAT("elf64-tradlittlemips", "elf64-tradbigmips", "elf64-tradlittlemips")
>> 11 #elif _MIPS_SIM == _MIPS_SIM_NABI32
>> 12 OUTPUT_FORMAT("elf32-ntradlittlemips", "elf32-ntradbigmips", "elf32-ntradlittlemips")
>> 13 #else
>> 14 OUTPUT_FORMAT("elf32-tradlittlemips", "elf32-tradbigmips", "elf32-tradlittlemips")
>> 15 #endif
>> 16
>> 17 OUTPUT_ARCH(mips)
19 18
20 SECTIONS 19 SECTIONS
21 { 20 {
22 PROVIDE(_start = .); 21 PROVIDE(_start = .);
23 <<
24 . = SIZEOF_HEADERS; 22 . = SIZEOF_HEADERS;
25 23
>> 24 /*
>> 25 * In order to retain compatibility with older toolchains we provide the
>> 26 * ABI flags section ourself. Newer assemblers will automatically
>> 27 * generate .MIPS.abiflags sections so we discard such input sections,
>> 28 * and then manually define our own section here. genvdso will patch
>> 29 * this section to have the correct name/type.
>> 30 */
>> 31 .mips_abiflags : { *(.mips_abiflags) } :text :abiflags
>> 32
>> 33 .reginfo : { *(.reginfo) } :text :reginfo
>> 34
26 .hash : { *(.hash) } 35 .hash : { *(.hash) } :text
27 .gnu.hash : { *(.gnu.hash) } 36 .gnu.hash : { *(.gnu.hash) }
28 .dynsym : { *(.dynsym) } 37 .dynsym : { *(.dynsym) }
29 .dynstr : { *(.dynstr) } 38 .dynstr : { *(.dynstr) }
30 .gnu.version : { *(.gnu.version) } 39 .gnu.version : { *(.gnu.version) }
31 .gnu.version_d : { *(.gnu.version_d) 40 .gnu.version_d : { *(.gnu.version_d) }
32 .gnu.version_r : { *(.gnu.version_r) 41 .gnu.version_r : { *(.gnu.version_r) }
33 42
34 .note : { *(.note.*) } !! 43 .note : { *(.note.*) } :text :note
35 44
>> 45 .text : { *(.text*) } :text
>> 46 PROVIDE (__etext = .);
>> 47 PROVIDE (_etext = .);
>> 48 PROVIDE (etext = .);
36 49
37 .eh_frame_hdr : { *(.eh_frame_hdr) } !! 50 .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr
38 .eh_frame : { KEEP (*(.eh_frame) 51 .eh_frame : { KEEP (*(.eh_frame)) } :text
39 52
40 .dynamic : { *(.dynamic) } !! 53 .dynamic : { *(.dynamic) } :text :dynamic
41 54
42 .rodata : { *(.rodata*) } 55 .rodata : { *(.rodata*) } :text
43 56
44 .text : { *(.text*) } !! 57 _end = .;
45 !! 58 PROVIDE(end = .);
46 .got : { *(.got) } <<
47 .rel.plt : { *(.rel.plt) } <<
48 59
49 /DISCARD/ : { 60 /DISCARD/ : {
>> 61 *(.MIPS.abiflags)
>> 62 *(.gnu.attributes)
50 *(.note.GNU-stack) 63 *(.note.GNU-stack)
51 *(.data .data.* .gnu.linkonce. 64 *(.data .data.* .gnu.linkonce.d.* .sdata*)
52 *(.bss .sbss .dynbss .dynsbss) 65 *(.bss .sbss .dynbss .dynsbss)
53 } 66 }
54 } 67 }
55 68
56 /* <<
57 * We must supply the ELF program headers expl <<
58 * PT_LOAD segment, and set the flags explicit <<
59 */ <<
60 PHDRS 69 PHDRS
61 { 70 {
>> 71 /*
>> 72 * Provide a PT_MIPS_ABIFLAGS header to assign the ABI flags section
>> 73 * to. We can specify the header type directly here so no modification
>> 74 * is needed later on.
>> 75 */
>> 76 abiflags 0x70000003;
>> 77
>> 78 /*
>> 79 * The ABI flags header must exist directly after the PT_INTERP header,
>> 80 * so we must explicitly place the PT_MIPS_REGINFO header after it to
>> 81 * stop the linker putting one in at the start.
>> 82 */
>> 83 reginfo 0x70000000;
>> 84
62 text PT_LOAD FLAGS( 85 text PT_LOAD FLAGS(5) FILEHDR PHDRS; /* PF_R|PF_X */
63 dynamic PT_DYNAMIC FLAGS( 86 dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
64 note PT_NOTE FLAGS( 87 note PT_NOTE FLAGS(4); /* PF_R */
65 eh_frame_hdr PT_GNU_EH_FRAME; 88 eh_frame_hdr PT_GNU_EH_FRAME;
66 } 89 }
67 90
68 VERSION 91 VERSION
69 { 92 {
70 LINUX_2.6 { 93 LINUX_2.6 {
>> 94 #ifndef CONFIG_MIPS_DISABLE_VDSO
71 global: 95 global:
72 __vdso_clock_gettime; 96 __vdso_clock_gettime;
>> 97 #ifdef CONFIG_MIPS_CLOCK_VSYSCALL
73 __vdso_gettimeofday; 98 __vdso_gettimeofday;
>> 99 #endif
74 __vdso_clock_getres; 100 __vdso_clock_getres;
>> 101 #if _MIPS_SIM != _MIPS_SIM_ABI64
75 __vdso_clock_gettime64; 102 __vdso_clock_gettime64;
>> 103 #endif
>> 104 #endif
76 local: *; 105 local: *;
77 }; 106 };
78 } 107 }
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