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