1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * This is the infamous ld script for the 32 bits vdso 4 * library 5 */ 6#include <asm/vdso.h> 7#include <asm/page.h> 8#include <asm-generic/vmlinux.lds.h> 9#include <vdso/datapage.h> 10 11#ifdef __LITTLE_ENDIAN__ 12OUTPUT_FORMAT("elf32-powerpcle", "elf32-powerpcle", "elf32-powerpcle") 13#else 14OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", "elf32-powerpc") 15#endif 16OUTPUT_ARCH(powerpc:common) 17 18SECTIONS 19{ 20 VDSO_VVAR_SYMS 21 22 . = SIZEOF_HEADERS; 23 24 .hash : { *(.hash) } :text 25 .gnu.hash : { *(.gnu.hash) } 26 .dynsym : { *(.dynsym) } 27 .dynstr : { *(.dynstr) } 28 .gnu.version : { *(.gnu.version) } 29 .gnu.version_d : { *(.gnu.version_d) } 30 .gnu.version_r : { *(.gnu.version_r) } 31 32 .note : { *(.note.*) } :text :note 33 34 . = ALIGN(16); 35 .text : { 36 *(.text .stub .text.* .gnu.linkonce.t.* __ftr_alt_*) 37 } :text 38 PROVIDE(__etext = .); 39 PROVIDE(_etext = .); 40 PROVIDE(etext = .); 41 42 . = ALIGN(8); 43 VDSO_ftr_fixup_start = .; 44 __ftr_fixup : { *(__ftr_fixup) } 45 VDSO_ftr_fixup_end = .; 46 47 . = ALIGN(8); 48 VDSO_mmu_ftr_fixup_start = .; 49 __mmu_ftr_fixup : { *(__mmu_ftr_fixup) } 50 VDSO_mmu_ftr_fixup_end = .; 51 52 . = ALIGN(8); 53 VDSO_lwsync_fixup_start = .; 54 __lwsync_fixup : { *(__lwsync_fixup) } 55 VDSO_lwsync_fixup_end = .; 56 57#ifdef CONFIG_PPC64 58 . = ALIGN(8); 59 VDSO_fw_ftr_fixup_start = .; 60 __fw_ftr_fixup : { *(__fw_ftr_fixup) } 61 VDSO_fw_ftr_fixup_end = .; 62#endif 63 64 /* 65 * Other stuff is appended to the text segment: 66 */ 67 .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } 68 .rodata1 : { *(.rodata1) } 69 70 .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr 71 .eh_frame : { KEEP (*(.eh_frame)) } :text 72 .gcc_except_table : { *(.gcc_except_table) } 73 .fixup : { *(.fixup) } 74 75 .dynamic : { *(.dynamic) } :text :dynamic 76 .got : { *(.got) } :text 77 .plt : { *(.plt) } 78 79 .rela.dyn : { *(.rela .rela*) } 80 81 _end = .; 82 __end = .; 83 PROVIDE(end = .); 84 85 DWARF_DEBUG 86 ELF_DETAILS 87 88 /DISCARD/ : { 89 *(.note.GNU-stack) 90 *(*.EMB.apuinfo) 91 *(.branch_lt) 92 *(.data .data.* .gnu.linkonce.d.* .sdata*) 93 *(.bss .sbss .dynbss .dynsbss) 94 *(.got1 .glink .iplt) 95 } 96} 97 98/* 99 * Very old versions of ld do not recognize this name token; use the constant. 100 */ 101#define PT_GNU_EH_FRAME 0x6474e550 102 103/* 104 * We must supply the ELF program headers explicitly to get just one 105 * PT_LOAD segment, and set the flags explicitly to make segments read-only. 106 */ 107PHDRS 108{ 109 text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */ 110 dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ 111 note PT_NOTE FLAGS(4); /* PF_R */ 112 eh_frame_hdr PT_GNU_EH_FRAME; 113} 114 115/* 116 * This controls what symbols we export from the DSO. 117 */ 118VERSION 119{ 120 VDSO_VERSION_STRING { 121 global: 122 __kernel_get_syscall_map; 123 __kernel_gettimeofday; 124 __kernel_clock_gettime; 125 __kernel_clock_gettime64; 126 __kernel_clock_getres; 127 __kernel_time; 128 __kernel_get_tbfreq; 129 __kernel_sync_dicache; 130 __kernel_sigtramp32; 131 __kernel_sigtramp_rt32; 132#if defined(CONFIG_PPC64) || !defined(CONFIG_SMP) 133 __kernel_getcpu; 134#endif 135 __kernel_getrandom; 136 137 local: *; 138 }; 139} 140 141/* 142 * Make the sigreturn code visible to the kernel. 143 */ 144VDSO_sigtramp32 = __kernel_sigtramp32; 145VDSO_sigtramp_rt32 = __kernel_sigtramp_rt32; 146