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/*
* Linker script for gate DSO. The gate pages are an ELF shared object
* prelinked to its virtual address, with only one read-only segment and
* one execute-only segment (both fit in one page). This script controls
* its layout.
*/
#include <asm/system.h>
#include "paravirt_patchlist.h"
SECTIONS
{
. = GATE_ADDR + SIZEOF_HEADERS;
.hash : { *(.hash) } :readable
.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*) } :readable :note
.dynamic : { *(.dynamic) } :readable :dynamic
/*
* This linker script is used both with -r and with -shared. For
* the layouts to match, we need to skip more than enough space for
* the dynamic symbol table et al. If this amount is insufficient,
* ld -shared will barf. Just increase it here.
*/
. = GATE_ADDR + 0x600;
.data.patch : {
__paravirt_start_gate_mckinley_e9_patchlist = .;
*(.data.patch.mckinley_e9)
__paravirt_end_gate_mckinley_e9_patchlist = .;
__paravirt_start_gate_vtop_patchlist = .;
*(.data.patch.vtop)
__paravirt_end_gate_vtop_patchlist = .;
__paravirt_start_gate_fsyscall_patchlist = .;
*(.data.patch.fsyscall_table)
__paravirt_end_gate_fsyscall_patchlist = .;
__paravirt_start_gate_brl_fsys_bubble_down_patchlist = .;
*(.data.patch.brl_fsys_bubble_down)
__paravirt_end_gate_brl_fsys_bubble_down_patchlist = .;
} :readable
.IA_64.unwind_info : { *(.IA_64.unwind_info*) }
.IA_64.unwind : { *(.IA_64.unwind*) } :readable :unwind
#ifdef HAVE_BUGGY_SEGREL
.text (GATE_ADDR + PAGE_SIZE) : { *(.text) *(.text.*) } :readable
#else
. = ALIGN(PERCPU_PAGE_SIZE) + (. & (PERCPU_PAGE_SIZE - 1));
.text : { *(.text) *(.text.*) } :epc
#endif
/DISCARD/ : {
*(.got.plt) *(.got)
*(.data .data.* .gnu.linkonce.d.*)
*(.dynbss)
*(.bss .bss.* .gnu.linkonce.b.*)
*(__ex_table)
*(__mca_table)
}
}
/*
* ld does not recognize this name token; use the constant.
*/
#define PT_IA_64_UNWIND 0x70000001
/*
* 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
{
readable PT_LOAD FILEHDR PHDRS FLAGS(4); /* PF_R */
#ifndef HAVE_BUGGY_SEGREL
epc PT_LOAD FILEHDR PHDRS FLAGS(1); /* PF_X */
#endif
dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
note PT_NOTE FLAGS(4); /* PF_R */
unwind PT_IA_64_UNWIND;
}
/*
* This controls what symbols we export from the DSO.
*/
VERSION
{
LINUX_2.5 {
global:
__kernel_syscall_via_break;
__kernel_syscall_via_epc;
__kernel_sigtramp;
local: *;
};
}
/* The ELF entry point can be used to set the AT_SYSINFO value. */
ENTRY(__kernel_syscall_via_epc)
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