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/* SPDX-License-Identifier: GPL-2.0 */
/*
* This is the infamous ld script for the 32 bits vdso
* library
*/
#include <asm/vdso.h>
#include <asm/page.h>
#include <asm-generic/vmlinux.lds.h>
#ifdef __LITTLE_ENDIAN__
OUTPUT_FORMAT("elf32-powerpcle", "elf32-powerpcle", "elf32-powerpcle")
#else
OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", "elf32-powerpc")
#endif
OUTPUT_ARCH(powerpc:common)
SECTIONS
{
PROVIDE(_vdso_datapage = . - 2 * PAGE_SIZE);
. = SIZEOF_HEADERS;
.hash : { *(.hash) } :text
.gnu.hash : { *(.gnu.hash) }
.dynsym : { *(.dynsym) }
.dynstr : { *(.dynstr) }
.gnu.version : { *(.gnu.version) }
.gnu.version_d : { *(.gnu.version_d) }
.gnu.version_r : { *(.gnu.version_r) }
.note : { *(.note.*) } :text :note
. = ALIGN(16);
.text : {
*(.text .stub .text.* .gnu.linkonce.t.* __ftr_alt_*)
} :text
PROVIDE(__etext = .);
PROVIDE(_etext = .);
PROVIDE(etext = .);
. = ALIGN(8);
VDSO_ftr_fixup_start = .;
__ftr_fixup : { *(__ftr_fixup) }
VDSO_ftr_fixup_end = .;
. = ALIGN(8);
VDSO_mmu_ftr_fixup_start = .;
__mmu_ftr_fixup : { *(__mmu_ftr_fixup) }
VDSO_mmu_ftr_fixup_end = .;
. = ALIGN(8);
VDSO_lwsync_fixup_start = .;
__lwsync_fixup : { *(__lwsync_fixup) }
VDSO_lwsync_fixup_end = .;
#ifdef CONFIG_PPC64
. = ALIGN(8);
VDSO_fw_ftr_fixup_start = .;
__fw_ftr_fixup : { *(__fw_ftr_fixup) }
VDSO_fw_ftr_fixup_end = .;
#endif
/*
* Other stuff is appended to the text segment:
*/
.rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
.rodata1 : { *(.rodata1) }
.eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr
.eh_frame : { KEEP (*(.eh_frame)) } :text
.gcc_except_table : { *(.gcc_except_table) }
.fixup : { *(.fixup) }
.dynamic : { *(.dynamic) } :text :dynamic
.got : { *(.got) } :text
.plt : { *(.plt) }
_end = .;
__end = .;
PROVIDE(end = .);
DWARF_DEBUG
ELF_DETAILS
/DISCARD/ : {
*(.note.GNU-stack)
*(.data .data.* .gnu.linkonce.d.* .sdata*)
*(.bss .sbss .dynbss .dynsbss)
*(.got1)
}
}
/*
* Very old versions of ld do not recognize this name token; use the constant.
*/
#define PT_GNU_EH_FRAME 0x6474e550
/*
* We must supply the ELF program headers explicitly to get just one
* PT_LOAD segment, and set the flags explicitly to make segments read-only.
*/
PHDRS
{
text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */
dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
note PT_NOTE FLAGS(4); /* PF_R */
eh_frame_hdr PT_GNU_EH_FRAME;
}
/*
* This controls what symbols we export from the DSO.
*/
VERSION
{
VDSO_VERSION_STRING {
global:
__kernel_get_syscall_map;
__kernel_gettimeofday;
__kernel_clock_gettime;
__kernel_clock_gettime64;
__kernel_clock_getres;
__kernel_time;
__kernel_get_tbfreq;
__kernel_sync_dicache;
__kernel_sigtramp32;
__kernel_sigtramp_rt32;
#if defined(CONFIG_PPC64) || !defined(CONFIG_SMP)
__kernel_getcpu;
#endif
local: *;
};
}
/*
* Make the sigreturn code visible to the kernel.
*/
VDSO_sigtramp32 = __kernel_sigtramp32;
VDSO_sigtramp_rt32 = __kernel_sigtramp_rt32;
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