86feeaa812
Building asm-offsets.h has been moved to a seperate Kbuild file located in the top-level directory. This allow us to share the functionality across the architectures. The old rules in architecture specific Makefiles will die in subsequent patches. Furhtermore the usual kbuild dependency tracking is now used when deciding to rebuild asm-offsets.s. So we no longer risk to fail a rebuild caused by asm-offsets.c dependencies being touched. With this common rule-set we now force the same name across all architectures. Following patches will fix the rest. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
67 lines
1.9 KiB
ArmAsm
67 lines
1.9 KiB
ArmAsm
/*
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* Linker script for vsyscall DSO. The vsyscall page is an ELF shared
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* object prelinked to its virtual address, and with only one read-only
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* segment (that fits in one page). This script controls its layout.
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*/
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#include <asm/asm-offsets.h>
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SECTIONS
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{
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. = VSYSCALL_BASE + SIZEOF_HEADERS;
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.hash : { *(.hash) } :text
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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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/* This linker script is used both with -r and with -shared.
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For the layouts to match, we need to skip more than enough
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space for the dynamic symbol table et al. If this amount
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is insufficient, ld -shared will barf. Just increase it here. */
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. = VSYSCALL_BASE + 0x400;
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.text : { *(.text) } :text =0x90909090
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.note : { *(.note.*) } :text :note
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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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.dynamic : { *(.dynamic) } :text :dynamic
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.useless : {
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*(.got.plt) *(.got)
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*(.data .data.* .gnu.linkonce.d.*)
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*(.dynbss)
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*(.bss .bss.* .gnu.linkonce.b.*)
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} :text
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}
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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 0x6474e550; /* PT_GNU_EH_FRAME, but ld doesn't match the name */
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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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LINUX_2.5 {
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global:
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__kernel_vsyscall;
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__kernel_sigreturn;
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__kernel_rt_sigreturn;
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local: *;
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};
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}
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/* The ELF entry point can be used to set the AT_SYSINFO value. */
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ENTRY(__kernel_vsyscall);
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