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freebsd/sys/conf/ldscript.ia64
Marcel Moolenaar 7df304f3e0 Stop linking against a direct-mapped virtual address and instead
use the PBVM. This eliminates the implied hardcoding of the
physical address at which the kernel needs to be loaded. Using the
PBVM makes it possible to load the kernel irrespective of the
physical memory organization and allows us to replicate kernel text
on NUMA machines.

While here, reduce the direct-mapped page size to the kernel's
page size so that we can support memory attributes better.
2011-04-30 20:49:00 +00:00

153 lines
5.0 KiB
Plaintext

/* $FreeBSD$ */
OUTPUT_FORMAT("elf64-ia64-freebsd", "elf64-ia64-freebsd", "elf64-ia64-freebsd")
OUTPUT_ARCH(ia64)
ENTRY(__start)
SEARCH_DIR(/usr/lib);
kernel_text = 0x9ffc000000000000;
SECTIONS
{
/* Read-only sections, merged into text segment: */
. = kernel_text + SIZEOF_HEADERS;
.interp : { *(.interp) }
PROVIDE (btext = .);
.text :
{
*(.ivt)
*(.ivt.text)
*(.text .stub .text.* .gnu.linkonce.t.*)
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
} = 0x00300000010070000002000001000400
.init : { *(.init) } = 0x00300000010070000002000001000400
.plt : { *(.plt) }
.fini : { *(.fini) } = 0x00300000010070000002000001000400
_etext = .;
PROVIDE (etext = .);
.hash : { *(.hash) }
.dynsym : { *(.dynsym) }
.dynstr : { *(.dynstr) }
.gnu.version : { *(.gnu.version) }
.gnu.version_d : { *(.gnu.version_d) }
.gnu.version_r : { *(.gnu.version_r) }
.rela.init : { *(.rela.init) }
.rela.text : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) }
.rela.fini : { *(.rela.fini) }
.rela.rodata : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) }
.rela.data : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) }
.rela.ctors : { *(.rela.ctors) }
.rela.dtors : { *(.rela.dtors) }
.rela.got : { *(.rela.got) }
.rela.sdata : { *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*) }
.rela.sbss : { *(.rela.sbss .rela.sbss.* .rela.gnu.linkonce.sb.*) }
.rela.sdata2 : { *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*) }
.rela.sbss2 : { *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*) }
.rela.bss : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) }
.rela.plt : { *(.rela.plt) }
.rela.IA_64.pltoff : { *(.rela.IA_64.pltoff) }
.IA_64.unwind_info : { *(.IA_64.unwind_info* .gnu.linkonce.ia64unwi.*) }
.IA_64.unwind : { *(.IA_64.unwind* .gnu.linkonce.ia64unw.*) }
.rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
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.sdata2 : { *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) }
.sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) }
.opd : { *(.opd) }
/* Adjust the address for the data segment. We want to start in the next
page in the loader virtual memory. */
. = ALIGN(65536);
PROVIDE (bdata = .);
.data :
{
*(.ivt.data)
*(.data .data.* .gnu.linkonce.d.*)
SORT(CONSTRUCTORS)
}
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.dynamic : { *(.dynamic) }
.ctors :
{
*(.ctors)
*(SORT(.ctors.*))
}
.dtors :
{
*(.dtors)
*(SORT(.dtors.*))
}
. = ALIGN(16);
__gp = . + 0x200000;
.got : { *(.got.plt) *(.got) }
.IA_64.pltoff : { *(.IA_64.pltoff) }
/* We want the small data sections together, so single-instruction offsets
can access them all, and initialized data all before uninitialized, so
we can shorten the on-disk segment size. */
.sdata :
{
*(.sdata .sdata.* .gnu.linkonce.s.*)
}
_edata = .;
PROVIDE (edata = .);
__bss_start = .;
.sbss :
{
PROVIDE (__sbss_start = .);
PROVIDE (___sbss_start = .);
*(.dynsbss)
*(.sbss .sbss.* .gnu.linkonce.sb.*)
*(.scommon)
PROVIDE (__sbss_end = .);
PROVIDE (___sbss_end = .);
}
.bss :
{
*(.dynbss)
*(.bss .bss.* .gnu.linkonce.b.*)
*(COMMON)
/* Align here to ensure that the .bss section occupies space up to
_end. Align after .bss to ensure correct alignment even if the
.bss section disappears because there are no input sections. */
. = ALIGN(64 / 8);
}
. = ALIGN(64 / 8);
_end = .;
PROVIDE (end = .);
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
/* DWARF debug sections.
Symbols in the DWARF debugging sections are relative to the beginning
of the section so we begin them at 0. */
/* DWARF 1 */
.debug 0 : { *(.debug) }
.line 0 : { *(.line) }
/* GNU DWARF 1 extensions */
.debug_srcinfo 0 : { *(.debug_srcinfo) }
.debug_sfnames 0 : { *(.debug_sfnames) }
/* DWARF 1.1 and DWARF 2 */
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
/* DWARF 2 */
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
/* SGI/MIPS DWARF 2 extensions */
.debug_weaknames 0 : { *(.debug_weaknames) }
.debug_funcnames 0 : { *(.debug_funcnames) }
.debug_typenames 0 : { *(.debug_typenames) }
.debug_varnames 0 : { *(.debug_varnames) }
}