projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 3c3bdf30 NC |
1 | TEMPLATE_NAME=elf32 |
| 2 | GENERATE_SHLIB_SCRIPT=yes | |
| 3 | ELFSIZE=64 | |
| 4 | SCRIPT_NAME=elf | |
| 5 | OUTPUT_FORMAT="elf64-mmix" | |
| 6 | ENTRY=_start. | |
| 7 | ||
| 8 | # Default to 0 as mmixal does. | |
| 9 | TEXT_START_ADDR='DEFINED (__.MMIX.start..text) ? __.MMIX.start..text : 0' | |
| 10 | # Don't add SIZEOF_HEADERS. | |
| 11 | # Don't set EMBEDDED, that would be misleading; it's not that kind of system. | |
| 12 | TEXT_BASE_ADDRESS=$TEXT_START_ADDR | |
| 13 | DATA_ADDR='DEFINED (__.MMIX.start..data) ? __.MMIX.start..data : 0x2000000000000000' | |
| 14 | ||
| 15 | # Setting this anywhere near the quite reasonable value of 0x10000 | |
| 16 | # causes the binary to bloat to reach page alignment between segments. | |
| 17 | # Let's just have a 256-byte default page alignment. Having some | |
| 18 | # alignment at all gives a warm feeling but not much more. | |
| 19 | MAXPAGESIZE=256 | |
| 20 | ARCH=mmix | |
| 21 | MACHINE= | |
| 22 | COMPILE_IN=yes | |
| 23 | EXTRA_EM_FILE=mmixelf | |
| 24 | ||
| 25 | # The existence of a symbol __start (or _start) should overrule Main, so | |
| 26 | # it can be a user symbol without the associated mmixal magic. We | |
| 27 | # also want to provide Main as a synonym for _start, if Main wasn't | |
| 28 | # defined but is referred to, and _start was defined. | |
| 29 | # | |
| 30 | # The reason we use a symbol "_start." as a mediator is to avoid | |
| 31 | # causing ld to force the type of _start to object rather than no | |
| 32 | # type, which confuses disassembly; we also make it alphanumerically | |
| 33 | # a successor of _start for similar reasons. Perhaps it's a linker | |
| 34 | # bug that linker-defined symbols set the symbol-type. | |
| 35 | # | |
| 36 | # Note that we smuggle this into OTHER_TEXT_SECTIONS (at the end | |
| 37 | # of .text) rather than TEXT_START_SYMBOLS. This is necessary, as | |
| 38 | # DEFINED wouldn't find the symbol if it was at the top; presumably | |
| 39 | # before the definition, if the definition is not in the first file. | |
| 40 | # FIXME: Arguably a linker bug. | |
| 41 | OTHER_TEXT_SECTIONS=' | |
| 42 | _start. = (DEFINED (_start) ? _start | |
| 43 | : (DEFINED (Main) ? Main : (DEFINED (.text) ? .text : 0))); | |
| 44 | PROVIDE (Main = DEFINED (Main) ? Main : (DEFINED (_start) ? _start : _start.)); | |
| 45 | ' | |
| 46 | ||
| 48fa4a5d | 47 | OTHER_SECTIONS=' |
| 3c3bdf30 NC |
48 | .MMIX.reg_contents : |
| 49 | { | |
| 50 | /* Note that this section always has a fixed VMA - that of its | |
| 51 | first register * 8. */ | |
| 48fa4a5d | 52 | *(.MMIX.reg_contents.linker_allocated); |
| 3c3bdf30 NC |
53 | *(.MMIX.reg_contents); |
| 54 | } | |
| 48fa4a5d | 55 | ' |
| 3c3bdf30 NC |
56 | |
| 57 | # FIXME: Also bit by the PROVIDE bug? If not, this could be | |
| 58 | # EXECUTABLE_SYMBOLS. | |
| 59 | # By default, put the high end of the stack where the register stack | |
| 60 | # begins. They grow in opposite directions. */ | |
| 827a1c67 | 61 | OTHER_SYMBOLS="PROVIDE (__Stack_start = 0x6000000000000000);" |