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dd2e0905 SC |
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. | |
5 | SCRIPT_NAME=elf | |
6 | ||
7 | # Handle both big- and little-ended 32-bit MIPS objects. | |
8 | ARCH=mips | |
9 | OUTPUT_FORMAT="elf32-bigmips" | |
10 | BIG_OUTPUT_FORMAT="elf32-bigmips" | |
11 | LITTLE_OUTPUT_FORMAT="elf32-littlemips" | |
12 | ||
13 | TEMPLATE_NAME=elf32 | |
73934d31 | 14 | EXTRA_EM_FILE=mipself |
3ffe58d9 | 15 | |
249471c0 LC |
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 | |
31b94bbb L |
18 | xelf32*n32*) ELFSIZE=32 ;; |
19 | xelf64*) ELFSIZE=64 ;; | |
20 | x) ;; | |
3ffe58d9 AO |
21 | *) echo $0: unhandled emulation $EMULATION_NAME >&2; exit 1 ;; |
22 | esac | |
23 | ||
24 | if test `echo "$host" | sed -e s/64//` = `echo "$target" | sed -e s/64//`; then | |
25 | case " $EMULATION_LIBPATH " in | |
26 | *" ${EMULATION_NAME} "*) | |
9c8ebd6a DJ |
27 | NATIVE=yes |
28 | ;; | |
3ffe58d9 AO |
29 | esac |
30 | fi | |
e316b3a0 | 31 | |
9c8ebd6a DJ |
32 | # Look for 64 bit target libraries in /lib64, /usr/lib64 etc., first. |
33 | LIBPATH_SUFFIX=$ELFSIZE | |
34 | ||
e316b3a0 | 35 | GENERATE_SHLIB_SCRIPT=yes |
35eb9fb6 | 36 | GENERATE_PIE_SCRIPT=yes |
dd2e0905 SC |
37 | |
38 | TEXT_START_ADDR=0x10000000 | |
24718e3b | 39 | MAXPAGESIZE="CONSTANT (MAXPAGESIZE)" |
dd2e0905 SC |
40 | ENTRY=__start |
41 | ||
5427f821 RS |
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) } | |
48 | " | |
e4492aa0 | 49 | # GOT-related settings. |
4e25343c RS |
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 | |
53 | # of .got. | |
dd2e0905 | 54 | OTHER_GOT_SYMBOLS=' |
4e25343c | 55 | . = .; |
9e808284 | 56 | HIDDEN (_gp = ALIGN (16) + 0x7ff0); |
dd2e0905 | 57 | ' |
861fb55a DJ |
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: | |
61 | # | |
62 | # . = . | |
63 | # _gp = ALIGN (16) + 0x7ff0; | |
64 | # .got : { *(.got.plt) *(.got) } | |
65 | # | |
66 | # would set _gp to the wrong value; _gp - 0x7ff0 must point to the start | |
67 | # of *(.got). | |
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) }" | |
73 | else | |
74 | OTHER_READWRITE_SECTIONS=".got.plt ${RELOCATING-0} : { *(.got.plt) }" | |
75 | fi | |
76 | ||
dd2e0905 SC |
77 | OTHER_SDATA_SECTIONS=" |
78 | .lit8 ${RELOCATING-0} : { *(.lit8) } | |
79 | .lit4 ${RELOCATING-0} : { *(.lit4) } | |
80 | .srdata ${RELOCATING-0} : { *(.srdata) } | |
81 | " | |
82 | ||
83 | # Magic symbols. | |
84 | TEXT_START_SYMBOLS='_ftext = . ;' | |
85 | DATA_START_SYMBOLS='_fdata = . ;' | |
86 | OTHER_BSS_SYMBOLS='_fbss = .;' | |
dd2e0905 | 87 | |
5a8e7be2 AM |
88 | INITIAL_READONLY_SECTIONS= |
89 | if test -z "${CREATE_SHLIB}"; then | |
90 | INITIAL_READONLY_SECTIONS=".interp ${RELOCATING-0} : { *(.interp) }" | |
91 | fi | |
92 | INITIAL_READONLY_SECTIONS="${INITIAL_READONLY_SECTIONS} | |
351cdf24 | 93 | .MIPS.abiflags ${RELOCATING-0} : { *(.MIPS.abiflags) } |
5a8e7be2 | 94 | .reginfo ${RELOCATING-0} : { *(.reginfo) }" |
9bf78c99 RS |
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*) }" | |
786dbcc3 RS |
98 | |
99 | TEXT_DYNAMIC= |