aboutsummaryrefslogtreecommitdiff
path: root/ld/scripttempl/elfppc.sc
blob: 5d7fa21b929f99ad886cbe92c06eb43e52aa585b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
#
# Unusual variables checked by this code:
#	NOP - two byte opcode for no-op (defaults to 0)
#	DATA_ADDR - if end-of-text-plus-one-page isn't right for data start
#	OTHER_READONLY_SECTIONS - other than .text .init .ctors .rodata ...
#		(e.g., .PARISC.milli)
#	OTHER_READWRITE_SECTIONS - other than .data .bss .sdata ...
#		(e.g., .PARISC.global)
#	OTHER_SECTIONS - at the end
#	EXECUTABLE_SYMBOLS - symbols that must be defined for an
#		executable (e.g., _DYNAMIC_LINK)
#	TEXT_START_SYMBOLS - symbols that appear at the start of the
#		.text section.
#	DATA_START_SYMBOLS - symbols that appear at the start of the
#		.data section.
#	OTHER_BSS_SYMBOLS - symbols that appear at the start of the
#		.bss section besides __bss_start.
#	DATA_PLT - .plt should be in data segment, not text segment.
#
# When adding sections, do note that the names of some sections are used
# when specifying the start address of the next.
#
test -z "$ENTRY" && ENTRY=_start
test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT}
test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT}
test "$LD_FLAG" = "N" && DATA_ADDR=.
INTERP=".interp   ${RELOCATING-0} : { *(.interp) 	}"
PLT=".plt    ${RELOCATING-0} : { *(.plt)	}"
cat <<EOF
OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}",
	      "${LITTLE_OUTPUT_FORMAT}")
OUTPUT_ARCH(${ARCH})
ENTRY(${ENTRY})

${RELOCATING+${LIB_SEARCH_DIRS}}
${RELOCATING+/* Do we need any of these for elf?
   __DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}}  */}
${RELOCATING+${EXECUTABLE_SYMBOLS}}
${RELOCATING- /* For some reason, the Solaris linker makes bad executables
  if gld -r is used and the intermediate file has sections starting
  at non-zero addresses.  Could be a Solaris ld bug, could be a GNU ld
  bug.  But for now assigning the zero vmas works.  */}
SECTIONS
{
  /* Read-only sections, merged into text segment: */
  ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_START_ADDR} + SIZEOF_HEADERS;}}
  ${CREATE_SHLIB+${RELOCATING+. = SIZEOF_HEADERS;}}
  ${CREATE_SHLIB-${INTERP}}
  .hash        ${RELOCATING-0} : { *(.hash)		}
  .dynsym      ${RELOCATING-0} : { *(.dynsym)		}
  .dynstr      ${RELOCATING-0} : { *(.dynstr)		}
  .rel.text    ${RELOCATING-0} : { *(.rel.text)		}
  .rela.text   ${RELOCATING-0} : { *(.rela.text) 	}
  .rel.data    ${RELOCATING-0} : { *(.rel.data)		}
  .rela.data   ${RELOCATING-0} : { *(.rela.data) 	}
  .rel.rodata  ${RELOCATING-0} : { *(.rel.rodata) 	}
  .rela.rodata ${RELOCATING-0} : { *(.rela.rodata) 	}
  .rel.got     ${RELOCATING-0} : { *(.rel.got)		}
  .rela.got    ${RELOCATING-0} : { *(.rela.got)		}
  .rel.got1    ${RELOCATING-0} : { *(.rel.got1)		}
  .rela.got1   ${RELOCATING-0} : { *(.rela.got1)	}
  .rel.got2    ${RELOCATING-0} : { *(.rel.got2)		}
  .rela.got2   ${RELOCATING-0} : { *(.rela.got2)	}
  .rel.ctors   ${RELOCATING-0} : { *(.rel.ctors)	}
  .rela.ctors  ${RELOCATING-0} : { *(.rela.ctors)	}
  .rel.dtors   ${RELOCATING-0} : { *(.rel.dtors)	}
  .rela.dtors  ${RELOCATING-0} : { *(.rela.dtors)	}
  .rel.init    ${RELOCATING-0} : { *(.rel.init)	}
  .rela.init   ${RELOCATING-0} : { *(.rela.init)	}
  .rel.fini    ${RELOCATING-0} : { *(.rel.fini)	}
  .rela.fini   ${RELOCATING-0} : { *(.rela.fini)	}
  .rel.bss     ${RELOCATING-0} : { *(.rel.bss)		}
  .rela.bss    ${RELOCATING-0} : { *(.rela.bss)		}
  .rel.plt     ${RELOCATING-0} : { *(.rel.plt)		}
  .rela.plt    ${RELOCATING-0} : { *(.rela.plt)		}
  .init        ${RELOCATING-0} : { *(.init)	} =${NOP-0}
  ${DATA_PLT-${PLT}}
  .text    ${RELOCATING-0} :
  {
    ${RELOCATING+${TEXT_START_SYMBOLS}}
    *(.text)
    /* .gnu.warning sections are handled specially by elf32.em.  */
    *(.gnu.warning)
  } =${NOP-0}
  ${RELOCATING+_etext = .;}
  ${RELOCATING+PROVIDE (etext = .);}
  .fini    ${RELOCATING-0} : { *(.fini)    } =${NOP-0}
  .rodata  ${RELOCATING-0} : { *(.rodata)  }
  .rodata1 ${RELOCATING-0} : { *(.rodata1) }
  ${RELOCATING+${OTHER_READONLY_SECTIONS}}

  /* Read-write section, merged into data segment: */
  ${RELOCATING+. = ${DATA_ADDR- ALIGN(8) + ${MAXPAGESIZE}};}
  .data  ${RELOCATING-0} :
  {
    ${RELOCATING+${DATA_START_SYMBOLS}}
    *(.data)
    ${CONSTRUCTING+CONSTRUCTORS}
  }
  .data1 ${RELOCATING-0} : { *(.data1) }
  ${RELOCATING+${OTHER_READWRITE_SECTIONS}}

  ${RELOCATING+_GOT1_START_ = .;}
  .got1 ${RELOCATING-0} :  { *(.got1) }
  ${RELOCATING+_GOT1_END_ = .;}

  /* Put .ctors and .dtors next to the .got2 section, so that the pointers
     get relocated with -mrelocatable. Also put in the .fixup pointers.  */

  ${RELOCATING+_GOT2_START_ = .;}
  .got2  ${RELOCATING-0} :  { *(.got2) }

  ${RELOCATING+__CTOR_LIST__ = .;}
  .ctors ${RELOCATING-0} : { *(.ctors) }
  ${RELOCATING+__CTOR_END__ = .;}

  ${RELOCATING+__DTOR_LIST__ = .;}
  .dtors ${RELOCATING-0} : { *(.dtors) }
  ${RELOCATING+__DTOR_END__ = .;}

  ${RELOCATING+_FIXUP_START_ = .;}
  .fixup ${RELOCATING-0} : { *(.fixup) }
  ${RELOCATING+_FIXUP_END_ = .;}
  ${RELOCATING+_GOT2_END_ = .;}

  ${RELOCATING+_GOT_START_ = .;}
  ${RELOCATING+_GLOBAL_OFFSET_TABLE_ = . + 32768;}
  ${RELOCATING+_SDA_BASE_ = .;}
  .got         ${RELOCATING-0} : { *(.got.plt) *(.got) }
  ${RELOCATING+_GOT_END_ = .;}
  .dynamic     ${RELOCATING-0} : { *(.dynamic) }
  ${DATA_PLT+${PLT}}
  /* 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   ${RELOCATING-0} : { *(.sdata) }
  ${RELOCATING+_edata  =  .;}
  ${RELOCATING+PROVIDE (edata = .);}
  ${RELOCATING+__bss_start = .;}
  ${RELOCATING+${OTHER_BSS_SYMBOLS}}
  .sbss    ${RELOCATING-0} : { *(.sbss) *(.scommon) }
  .bss     ${RELOCATING-0} :
  {
   *(.dynbss)
   *(.bss)
   *(COMMON)
  }
  ${RELOCATING+_end = . ;}
  ${RELOCATING+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) }

  /* These must appear regardless of ${RELOCATING}.  */
  ${OTHER_SECTIONS}
}
EOF