xref: /netbsd-src/sys/arch/powerpc/conf/kern.ldscript (revision ce93b3da5702ce1edf4d46f9fb716f53daf32f23) 
1/* $NetBSD: kern.ldscript,v 1.9 2015/08/24 08:13:07 uebayasi Exp $ */
2
3/*  ldscript for NetBSD/powerpc kernels and LKMs, based on elf32ppc.x */
4OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc",
5	      "elf32-powerpc")
6OUTPUT_ARCH(powerpc:common)
7ENTRY(_start)
8/* Do we need any of these?
9   __DYNAMIC = 0;    */
10_DYNAMIC_LINK = 0;
11SECTIONS
12{
13  /*  Read-only sections, merged into text segment.  Assumes the
14      kernel Makefile sets the start address via -Ttext.  */
15  .text      :
16  {
17    _ftext = . ;
18    PROVIDE_HIDDEN (__eprol = .);
19    *(.text)
20    *(.text.unlikely .text.*_unlikely)
21    *(.text.exit .text.exit.*)
22    *(.text.startup .text.startup.*)
23    *(.text.hot .text.hot.*)
24    *(.text.* .gnu.linkonce.t.*)
25    __stub_start = .;
26    *(.stub)
27    __stub_end = .;
28    __stub_pmap_start = .;
29    *(.stub.pmap)
30    __stub_pmap_end = .;
31    /* .gnu.warning sections are handled specially by elf32.em.  */
32    *(.gnu.warning)
33    *(.glink)
34  } =0
35  _etext = .;
36  PROVIDE (__etext = .);
37  PROVIDE (_etext = .);
38  PROVIDE (etext = .);
39  .rodata         : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
40  .rodata1        : { *(.rodata1) }
41  .sdata2         :
42  {
43    PROVIDE (_SDA2_BASE_ = 32768);
44    *(.sdata2 .sdata2.* .gnu.linkonce.s2.*)
45  }
46  .sbss2          : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) }
47  /*.jcr            : { KEEP (*(.jcr)) } */ /* XXX??? */
48  .reginfo : { *(.reginfo) }
49/*  . = . + 0x1000; */
50  .data           :
51  {
52    _fdata = . ;
53    *(.data .data.* .gnu.linkonce.d.*)
54    SORT(CONSTRUCTORS)
55  }
56  .data1          : { *(.data1) }
57  . = ALIGN(32);	/* COHERENCY UNIT */
58  .data.cacheline_aligned	: { *(.data.cacheline_aligned) }
59  . = ALIGN(32);	/* COHERENCY UNIT */
60  .data.read_mostly		: { *(.data.read_mostly) }
61  . = ALIGN(32);	/* COHERENCY UNIT */
62  _gp = ALIGN(16) + 0x7ff0;
63  .lit8 : { *(.lit8) }
64  .lit4 : { *(.lit4) }
65  .sdata          :
66  {
67    PROVIDE (_SDA_BASE_ = 32768);
68    *(.sdata .sdata.* .gnu.linkonce.s.*)
69  }
70  _edata = .; PROVIDE (edata = .);
71  . = .;
72  __bss_start = .;
73  _fbss = .;
74  .sbss           :
75  {
76    PROVIDE (__sbss_start = .); PROVIDE (___sbss_start = .);
77    *(.dynsbss)
78    *(.sbss .sbss.* .gnu.linkonce.sb.*)
79    *(.scommon)
80    PROVIDE (__sbss_end = .); PROVIDE (___sbss_end = .);
81  }
82  .bss            :
83  {
84    *(.dynbss)
85    *(.bss .bss.* .gnu.linkonce.b.*)
86    *(COMMON)
87    /* Align here to ensure that the .bss section occupies space up to
88       _end.  Align after .bss to ensure correct alignment even if the
89       .bss section disappears because there are no input sections.
90       FIXME: Why do we need it? When there is no .bss section, we don't
91       pad the .data section.  */
92    . = ALIGN(. != 0 ? 32 / 8 : 1);
93  }
94  . = ALIGN(32 / 8);
95  . = ALIGN(32 / 8);
96  __end = .;
97  _end = .; PROVIDE (end = .);
98  /* . = DATA_SEGMENT_END (.); */
99}
100