[src/trunk]: src/sys/arch/powerpc/conf make this look more like the latest el...

[mrg <mrg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/a94734238df2
branches:  trunk
changeset: 326116:a94734238df2
user:      mrg <mrg%NetBSD.org@localhost>
date:      Sun Jan 19 02:32:21 2014 +0000

description:
make this look more like the latest elf32ppc.x.  tested on pegasosII.

diffstat:

 sys/arch/powerpc/conf/kern.ldscript |  117 ++++++++++++++++++++++++++++--------
 1 files changed, 91 insertions(+), 26 deletions(-)

diffs (165 lines):

diff -r dd92bff7d46e -r a94734238df2 sys/arch/powerpc/conf/kern.ldscript
--- a/sys/arch/powerpc/conf/kern.ldscript       Sun Jan 19 00:37:30 2014 +0000
+++ b/sys/arch/powerpc/conf/kern.ldscript       Sun Jan 19 02:32:21 2014 +0000
@@ -1,7 +1,9 @@
-/* $NetBSD: kern.ldscript,v 1.5 2013/11/16 12:00:21 mrg Exp $ */
+/* $NetBSD: kern.ldscript,v 1.6 2014/01/19 02:32:21 mrg Exp $ */
 
-/*  ldscript for NetBSD/powerpc kernels and LKMs */
-OUTPUT_ARCH(powerpc)
+/*  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?
@@ -14,29 +16,45 @@
   .text      :
   {
     _ftext = . ;
+    PROVIDE_HIDDEN (__eprol = .);
     *(.text)
-    *(.text.startup)
-    *(.text.unlikely)
+    *(.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.*) }
+  .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    :
+  .data           :
   {
     _fdata = . ;
-    *(.data)
-    CONSTRUCTORS
+    *(.data .data.* .gnu.linkonce.d.*)
+    SORT(CONSTRUCTORS)
   }
-  .data1                       : { *(.data1) }
+  .data1          : { *(.data1) }
   . = ALIGN(32);       /* COHERENCY UNIT */
   .data.cacheline_aligned      : { *(.data.cacheline_aligned) }
   . = ALIGN(32);       /* COHERENCY UNIT */
@@ -45,32 +63,79 @@
   _gp = ALIGN(16) + 0x7ff0;
   .lit8 : { *(.lit8) }
   .lit4 : { *(.lit4) }
-  .sdata     : { *(.sdata) }
-  _edata  =  .;
-  PROVIDE (edata = .);
+  .sdata          :
+  {
+    PROVIDE (_SDA_BASE_ = 32768);
+    *(.sdata .sdata.* .gnu.linkonce.s.*)
+  }
+  _edata = .; PROVIDE (edata = .);
+  . = .;
   __bss_start = .;
   _fbss = .;
-  .sbss      : { *(.sbss) *(.scommon) }
-  .bss       :
+  .sbss           :
+  {
+    PROVIDE (__sbss_start = .); PROVIDE (___sbss_start = .);
+    *(.dynsbss)
+    *(.sbss .sbss.* .gnu.linkonce.sb.*)
+    *(.scommon)
+    PROVIDE (__sbss_end = .); PROVIDE (___sbss_end = .);
+  }
+  .bss            :
   {
-   *(.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);
   }
-  _end = . ;
-  PROVIDE (end = .);
-  /* These are needed for ELF backends which have not yet been
-     converted to the new style linker.  */
-  .stab 0 : { *(.stab) }
-  .stabstr 0 : { *(.stabstr) }
+  . = 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 .debug DWARF section are relative to the beginning of the
-     section so we begin .debug at 0.  It's not clear yet what needs to happen
-     for the others.   */
+     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) }
-  .debug_sfnames  0 : { *(.debug_sfnames) }
+  /* 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) }