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140 lines
3.0 KiB
140 lines
3.0 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* This is the infamous ld script for the 32 bits vdso |
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* library |
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*/ |
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#include <asm/vdso.h> |
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#include <asm/page.h> |
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#include <asm-generic/vmlinux.lds.h> |
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#ifdef __LITTLE_ENDIAN__ |
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OUTPUT_FORMAT("elf32-powerpcle", "elf32-powerpcle", "elf32-powerpcle") |
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#else |
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OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", "elf32-powerpc") |
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#endif |
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OUTPUT_ARCH(powerpc:common) |
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ENTRY(_start) |
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SECTIONS |
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{ |
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PROVIDE(_vdso_datapage = . - PAGE_SIZE); |
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. = SIZEOF_HEADERS; |
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.hash : { *(.hash) } :text |
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.gnu.hash : { *(.gnu.hash) } |
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.dynsym : { *(.dynsym) } |
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.dynstr : { *(.dynstr) } |
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.gnu.version : { *(.gnu.version) } |
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.gnu.version_d : { *(.gnu.version_d) } |
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.gnu.version_r : { *(.gnu.version_r) } |
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.note : { *(.note.*) } :text :note |
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. = ALIGN(16); |
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.text : { |
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*(.text .stub .text.* .gnu.linkonce.t.* __ftr_alt_*) |
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} :text |
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PROVIDE(__etext = .); |
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PROVIDE(_etext = .); |
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PROVIDE(etext = .); |
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. = ALIGN(8); |
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VDSO_ftr_fixup_start = .; |
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__ftr_fixup : { *(__ftr_fixup) } |
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VDSO_ftr_fixup_end = .; |
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. = ALIGN(8); |
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VDSO_mmu_ftr_fixup_start = .; |
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__mmu_ftr_fixup : { *(__mmu_ftr_fixup) } |
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VDSO_mmu_ftr_fixup_end = .; |
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. = ALIGN(8); |
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VDSO_lwsync_fixup_start = .; |
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__lwsync_fixup : { *(__lwsync_fixup) } |
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VDSO_lwsync_fixup_end = .; |
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#ifdef CONFIG_PPC64 |
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. = ALIGN(8); |
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VDSO_fw_ftr_fixup_start = .; |
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__fw_ftr_fixup : { *(__fw_ftr_fixup) } |
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VDSO_fw_ftr_fixup_end = .; |
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#endif |
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/* |
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* Other stuff is appended to the text segment: |
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*/ |
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.rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } |
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.rodata1 : { *(.rodata1) } |
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.eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr |
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.eh_frame : { KEEP (*(.eh_frame)) } :text |
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.gcc_except_table : { *(.gcc_except_table) } |
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.fixup : { *(.fixup) } |
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.dynamic : { *(.dynamic) } :text :dynamic |
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.got : { *(.got) } :text |
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.plt : { *(.plt) } |
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_end = .; |
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__end = .; |
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PROVIDE(end = .); |
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STABS_DEBUG |
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DWARF_DEBUG |
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ELF_DETAILS |
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/DISCARD/ : { |
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*(.note.GNU-stack) |
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*(.data .data.* .gnu.linkonce.d.* .sdata*) |
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*(.bss .sbss .dynbss .dynsbss) |
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*(.got1) |
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} |
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} |
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/* |
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* Very old versions of ld do not recognize this name token; use the constant. |
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*/ |
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#define PT_GNU_EH_FRAME 0x6474e550 |
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/* |
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* We must supply the ELF program headers explicitly to get just one |
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* PT_LOAD segment, and set the flags explicitly to make segments read-only. |
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*/ |
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PHDRS |
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{ |
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text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */ |
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dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ |
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note PT_NOTE FLAGS(4); /* PF_R */ |
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eh_frame_hdr PT_GNU_EH_FRAME; |
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} |
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/* |
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* This controls what symbols we export from the DSO. |
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*/ |
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VERSION |
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{ |
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VDSO_VERSION_STRING { |
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global: |
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__kernel_get_syscall_map; |
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__kernel_gettimeofday; |
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__kernel_clock_gettime; |
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__kernel_clock_gettime64; |
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__kernel_clock_getres; |
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__kernel_time; |
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__kernel_get_tbfreq; |
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__kernel_sync_dicache; |
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__kernel_sigtramp32; |
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__kernel_sigtramp_rt32; |
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#if defined(CONFIG_PPC64) || !defined(CONFIG_SMP) |
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__kernel_getcpu; |
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#endif |
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local: *; |
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}; |
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} |
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/* |
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* Make the sigreturn code visible to the kernel. |
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*/ |
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VDSO_sigtramp32 = __kernel_sigtramp32; |
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VDSO_sigtramp_rt32 = __kernel_sigtramp_rt32;
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