1# If you change this file, please also look at files which source this one:
2# elf64bmip.sh elf64btsmip.sh elf32btsmipn32.sh elf32bmipn32.sh
3
4# This is an ELF platform.
5SCRIPT_NAME=elf
6
7# Handle both big- and little-ended 32-bit MIPS objects.
8ARCH=mips
9MACHINE=
10OUTPUT_FORMAT="elf32-bigmips"
11BIG_OUTPUT_FORMAT="elf32-bigmips"
12LITTLE_OUTPUT_FORMAT="elf32-littlemips"
13
14TEMPLATE_NAME=elf
15EXTRA_EM_FILE=mipself
16
17# Note: use "x$var" not x"$var" in case directive in order to work around bug in bash 4.2
18case "x$EMULATION_NAME" in
19xelf32*n32*) ELFSIZE=32 ;;
20xelf64*) ELFSIZE=64 ;;
21x) ;;
22*) echo $0: unhandled emulation $EMULATION_NAME >&2; exit 1 ;;
23esac
24
25if test `echo "$host" | sed -e s/64//` = `echo "$target" | sed -e s/64//`; then
26  case " $EMULATION_LIBPATH " in
27    *" ${EMULATION_NAME} "*)
28      NATIVE=yes
29      ;;
30  esac
31fi
32
33# Look for 64 bit target libraries in /lib64, /usr/lib64 etc., first.
34LIBPATH_SUFFIX=$ELFSIZE
35
36GENERATE_SHLIB_SCRIPT=yes
37GENERATE_PIE_SCRIPT=yes
38
39TEXT_START_ADDR=0x10000000
40MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
41ENTRY=__start
42
43# Unlike most targets, the MIPS backend puts all dynamic relocations
44# in a single dynobj section, which it also calls ".rel.dyn".  It does
45# this so that it can easily sort all dynamic relocations before the
46# output section has been populated.
47OTHER_GOT_RELOC_SECTIONS="
48  .rel.dyn      ${RELOCATING-0} : { *(.rel.dyn) }
49"
50# GOT-related settings.
51# If the output has a GOT section, there must be exactly 0x7ff0 bytes
52# between .got and _gp.
53OTHER_GOT_SYMBOLS='HIDDEN (_gp = ALIGN (16) + 0x7ff0);'
54
55# .got.plt is only used for the PLT psABI extension.  It should not be
56# included in the .sdata block with .got, as there is no need to access
57# the section from _gp.  Note that the traditional:
58#
59#      . = .
60#      _gp = ALIGN (16) + 0x7ff0;
61#      .got : { *(.got.plt) *(.got) }
62#
63# would set _gp to the wrong value; _gp - 0x7ff0 must point to the start
64# of *(.got).
65GOT=".got          ${RELOCATING-0} : { *(.got) }"
66unset OTHER_READWRITE_SECTIONS
67unset OTHER_RELRO_SECTIONS
68if test -n "$RELRO_NOW"; then
69  OTHER_RELRO_SECTIONS=".got.plt      ${RELOCATING-0} : { *(.got.plt) }"
70else
71  OTHER_READWRITE_SECTIONS=".got.plt      ${RELOCATING-0} : { *(.got.plt) }"
72fi
73
74OTHER_SDATA_SECTIONS="
75  .lit8         ${RELOCATING-0} : { *(.lit8) }
76  .lit4         ${RELOCATING-0} : { *(.lit4) }
77  .srdata       ${RELOCATING-0} : { *(.srdata) }
78"
79
80# Magic symbols.
81TEXT_START_SYMBOLS="PROVIDE_HIDDEN (__eprol = .); ${CREATE_SHLIB+PROVIDE (}_ftext = .${CREATE_SHLIB+)};"
82DATA_START_SYMBOLS="${CREATE_SHLIB+PROVIDE (}_fdata = .${CREATE_SHLIB+)};"
83OTHER_BSS_SYMBOLS="${CREATE_SHLIB+PROVIDE (}_fbss = .${CREATE_SHLIB+)};"
84
85INITIAL_READONLY_SECTIONS=
86if test -z "${CREATE_SHLIB}"; then
87  INITIAL_READONLY_SECTIONS=".interp       ${RELOCATING-0} : { *(.interp) }"
88fi
89INITIAL_READONLY_SECTIONS="${INITIAL_READONLY_SECTIONS}
90  .MIPS.abiflags      ${RELOCATING-0} : { *(.MIPS.abiflags) }
91  .MIPS.xhash      ${RELOCATING-0} : { *(.MIPS.xhash) }
92  .reginfo      ${RELOCATING-0} : { *(.reginfo) }"
93# Discard any .MIPS.content* or .MIPS.events* sections.  The linker
94# doesn't know how to adjust them.
95OTHER_SECTIONS="/DISCARD/ : { *(.MIPS.content*) *(.MIPS.events*) }"
96
97TEXT_DYNAMIC=
98