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