xref: /src/sys/arch/powerpc/conf/kern.ldscript

/* $NetBSD: kern.ldscript,v 1.7 2015/08/20 07:00:49 uebayasi Exp $ */

/*  ldscript for NetBSD/powerpc kernels and LKMs, based on elf32ppc.x */
OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc",
	      "elf32-powerpc")
OUTPUT_ARCH(powerpc:common)
ENTRY(_start)
SEARCH_DIR(/lib);
/* Do we need any of these?
   __DYNAMIC = 0;    */
_DYNAMIC_LINK = 0;
SECTIONS
{
  /*  Read-only sections, merged into text segment.  Assumes the
      kernel Makefile sets the start address via -Ttext.  */
  .text      :
  {
    _ftext = . ;
    PROVIDE_HIDDEN (__eprol = .);
    *(.text)
    *(.text.unlikely .text.*_unlikely)
    *(.text.exit .text.exit.*)
    *(.text.startup .text.startup.*)
    *(.text.hot .text.hot.*)
    *(.text.* .gnu.linkonce.t.*)
    __stub_start = .;
    *(.stub)
    __stub_end = .;
    __stub_pmap_start = .;
    *(.stub.pmap)
    __stub_pmap_end = .;
    /* .gnu.warning sections are handled specially by elf32.em.  */
    *(.gnu.warning)
    *(.glink)
  } =0
  _etext = .;
  PROVIDE (__etext = .);
  PROVIDE (_etext = .);
  PROVIDE (etext = .);
  .rodata         : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
  .rodata1        : { *(.rodata1) }
  .sdata2         :
  {
    PROVIDE (_SDA2_BASE_ = 32768);
    *(.sdata2 .sdata2.* .gnu.linkonce.s2.*)
  }
  .sbss2          : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) }
  /*.jcr            : { KEEP (*(.jcr)) } */ /* XXX??? */
  .reginfo : { *(.reginfo) }
/*  . = . + 0x1000; */
  .data           :
  {
    _fdata = . ;
    *(.data .data.* .gnu.linkonce.d.*)
    SORT(CONSTRUCTORS)
  }
  .data1          : { *(.data1) }
  . = ALIGN(32);	/* COHERENCY UNIT */
  .data.cacheline_aligned	: { *(.data.cacheline_aligned) }
  . = ALIGN(32);	/* COHERENCY UNIT */
  .data.read_mostly		: { *(.data.read_mostly) }
  . = ALIGN(32);	/* COHERENCY UNIT */
  _gp = ALIGN(16) + 0x7ff0;
  .lit8 : { *(.lit8) }
  .lit4 : { *(.lit4) }
  .sdata          :
  {
    PROVIDE (_SDA_BASE_ = 32768);
    *(.sdata .sdata.* .gnu.linkonce.s.*)
  }
  _edata = .; PROVIDE (edata = .);
  . = .;
  __bss_start = .;
  _fbss = .;
  .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.
       FIXME: Why do we need it? When there is no .bss section, we don't
       pad the .data section.  */
    . = ALIGN(. != 0 ? 32 / 8 : 1);
  }
  . = ALIGN(32 / 8);
  . = ALIGN(32 / 8);
  __end = .;
  _end = .; PROVIDE (end = .);
  /* . = DATA_SEGMENT_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) }
  /* DWARF 3 */
  .debug_pubtypes 0 : { *(.debug_pubtypes) }
  .debug_ranges   0 : { *(.debug_ranges) }
  /* DWARF Extension.  */
  .debug_macro    0 : { *(.debug_macro) }
  .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
  .line           0 : { *(.line) }
  /* These must appear regardless of  .  */
  .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) }
  .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) }
}