forked from Minki/linux
26f5ef2e3c
The .discard/.discard.* sections are used to generate intermediate results for the assembler (effectively "test assembly".) The output is waste and should not be retained. Cc: Stefani Seibold <stefani@seibold.net> Cc: Andy Lutomirski <luto@amacapital.net> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Link: http://lkml.kernel.org/n/tip-psizrnant8x3nrhbgvq2vekr@git.kernel.org
92 lines
2.1 KiB
ArmAsm
92 lines
2.1 KiB
ArmAsm
/*
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* Linker script for vDSO. This is an ELF shared object prelinked to
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* its virtual address, and with only one read-only segment.
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* This script controls its layout.
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*/
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SECTIONS
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{
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#ifdef BUILD_VDSO32
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#include <asm/vdso32.h>
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.hpet_sect : {
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hpet_page = . - VDSO_OFFSET(VDSO_HPET_PAGE);
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} :text :hpet_sect
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.vvar_sect : {
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vvar = . - VDSO_OFFSET(VDSO_VVAR_PAGE);
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/* Place all vvars at the offsets in asm/vvar.h. */
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#define EMIT_VVAR(name, offset) vvar_ ## name = vvar + offset;
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#define __VVAR_KERNEL_LDS
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#include <asm/vvar.h>
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#undef __VVAR_KERNEL_LDS
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#undef EMIT_VVAR
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} :text :vvar_sect
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#endif
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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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.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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.rodata : { *(.rodata*) } :text
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.data : {
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*(.data*)
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*(.sdata*)
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*(.got.plt) *(.got)
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*(.gnu.linkonce.d.*)
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*(.bss*)
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*(.dynbss*)
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*(.gnu.linkonce.b.*)
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}
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.altinstructions : { *(.altinstructions) }
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.altinstr_replacement : { *(.altinstr_replacement) }
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/*
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* Align the actual code well away from the non-instruction data.
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* This is the best thing for the I-cache.
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*/
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. = ALIGN(0x100);
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.text : { *(.text*) } :text =0x90909090
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/DISCARD/ : {
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*(.discard)
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*(.discard.*)
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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 FLAGS(5) FILEHDR PHDRS; /* 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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#ifdef BUILD_VDSO32
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vvar_sect PT_NULL FLAGS(4); /* PF_R */
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hpet_sect PT_NULL FLAGS(4); /* PF_R */
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#endif
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}
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