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
9OUTPUT_FORMAT="elf32-bigmips"
10BIG_OUTPUT_FORMAT="elf32-bigmips"
11LITTLE_OUTPUT_FORMAT="elf32-littlemips"
12
13TEMPLATE_NAME=elf32
14EXTRA_EM_FILE=mipself
15
16case "$EMULATION_NAME" in
17elf32*n32*) ELFSIZE=32 ;;
18elf64*) ELFSIZE=64 ;;
19*) echo $0: unhandled emulation $EMULATION_NAME >&2; exit 1 ;;
20esac
21
22if test `echo "$host" | sed -e s/64//` = `echo "$target" | sed -e s/64//`; then
23  case " $EMULATION_LIBPATH " in
24    *" ${EMULATION_NAME} "*)
25      NATIVE=yes
26      ;;
27  esac
28fi
29
30# Look for 64 bit target libraries in /lib64, /usr/lib64 etc., first.
31LIBPATH_SUFFIX=$ELFSIZE
32
33GENERATE_SHLIB_SCRIPT=yes
34GENERATE_PIE_SCRIPT=yes
35
36TEXT_START_ADDR=0x10000000
37MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
38ENTRY=__start
39
40# Unlike most targets, the MIPS backend puts all dynamic relocations
41# in a single dynobj section, which it also calls ".rel.dyn".  It does
42# this so that it can easily sort all dynamic relocations before the
43# output section has been populated.
44OTHER_GOT_RELOC_SECTIONS="
45  .rel.dyn      ${RELOCATING-0} : { *(.rel.dyn) }
46"
47# GOT-related settings.
48# If the output has a GOT section, there must be exactly 0x7ff0 bytes
49# between .got and _gp.  The ". = ." below stops the orphan code from
50# inserting other sections between the assignment to _gp and the start
51# of .got.
52OTHER_GOT_SYMBOLS='
53  . = .;
54  HIDDEN (_gp = ALIGN (16) + 0x7ff0);
55'
56# .got.plt is only used for the PLT psABI extension.  It should not be
57# included in the .sdata block with .got, as there is no need to access
58# the section from _gp.  Note that the traditional:
59#
60#      . = .
61#      _gp = ALIGN (16) + 0x7ff0;
62#      .got : { *(.got.plt) *(.got) }
63#
64# would set _gp to the wrong value; _gp - 0x7ff0 must point to the start
65# of *(.got).
66GOT=".got          ${RELOCATING-0} : { *(.got) }"
67unset OTHER_READWRITE_SECTIONS
68unset OTHER_RELRO_SECTIONS
69if test -n "$RELRO_NOW"; then
70  OTHER_RELRO_SECTIONS=".got.plt      ${RELOCATING-0} : { *(.got.plt) }"
71else
72  OTHER_READWRITE_SECTIONS=".got.plt      ${RELOCATING-0} : { *(.got.plt) }"
73fi
74
75OTHER_SDATA_SECTIONS="
76  .lit8         ${RELOCATING-0} : { *(.lit8) }
77  .lit4         ${RELOCATING-0} : { *(.lit4) }
78  .srdata       ${RELOCATING-0} : { *(.srdata) }
79"
80
81# Magic symbols.
82TEXT_START_SYMBOLS='_ftext = . ;'
83DATA_START_SYMBOLS='_fdata = . ;'
84OTHER_BSS_SYMBOLS='_fbss = .;'
85
86INITIAL_READONLY_SECTIONS=
87if test -z "${CREATE_SHLIB}"; then
88  INITIAL_READONLY_SECTIONS=".interp       ${RELOCATING-0} : { *(.interp) }"
89fi
90INITIAL_READONLY_SECTIONS="${INITIAL_READONLY_SECTIONS}
91  .MIPS.abiflags      ${RELOCATING-0} : { *(.MIPS.abiflags) }
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