From aebdf0e0990d0a9eac7945a1ee31658dda8f88ac Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 18 Oct 2016 23:02:24 +0100 Subject: [PATCH] 68000: elf2flt linker rules --- Library/elf2flt.ld | 220 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 220 insertions(+) create mode 100644 Library/elf2flt.ld diff --git a/Library/elf2flt.ld b/Library/elf2flt.ld new file mode 100644 index 00000000..d9f26b40 --- /dev/null +++ b/Library/elf2flt.ld @@ -0,0 +1,220 @@ + +ENTRY (_start) + +MEMORY { + flatmem : ORIGIN = 0x0, LENGTH = 0xfffffff +} + +PHDRS { + text PT_LOAD ; + data PT_LOAD ; +} + +SECTIONS { + + .text 0x0 : { + . = . + 4; + . = ALIGN(0x4) ; + _stext = . ; + *(.literal .text) + *(.literal.* .text.*) + *(.gnu.warning) + *(.stub) + *(.gnu.linkonce.literal.*) + *(.gnu.linkonce.t*) + *(.glue_7t) + *(.glue_7) + *(.jcr) + *(.init.literal) + KEEP (*(.init)) + *(.fini.literal) + KEEP (*(.fini)) + + *(.rodata) + *(.rodata1) + *(.rodata.*) + *(.gnu.linkonce.r*) + + /* .ARM.extab name sections containing exception unwinding information */ + *(.ARM.extab* .gnu.linkonce.armextab.*) + /* This is special code area at the end of the normal + text section. It contains a small lookup table at + the start followed by the code pointed to by entries + in the lookup table. */ + . = ALIGN (4) ; + PROVIDE(__ctbp = .); + *(.call_table_data) + *(.call_table_text) + } > flatmem :text + + /* .ARM.exidx name sections containing index entries for section unwinding */ + /* .ARM.exidx is sorted, so has to go in its own output section. */ + __exidx_start = .; + .ARM.exidx : + { + *(.ARM.exidx* .gnu.linkonce.armexidx.*) + } > flatmem + __exidx_end = .; + + . = ALIGN(0x20) ; + _etext = . ; + + .data : { + . = ALIGN(0x4) ; + _sdata = . ; + __data_start = . ; + data_start = . ; + *(.got.plt) + *(.got) + FILL(0) ; + . = ALIGN(0x20) ; + LONG(-1) + . = ALIGN(0x20) ; + *(.data) + *(.data1) + *(.data.*) + *(.gnu.linkonce.d*) + + /* Microblaze has .sdata and .sbss (small bss). They must + be contiguous, so please don't move any of this. JW */ + _ssrw = . ; + *(.sdata) + *(.sdata.*) + *(.sbss) /* Don't move this! */ + *(.gnu.linkonce.sb*) + _essrw = . ; + + _ssrw_size = _essrw - _ssrw; + PROVIDE(_SDA_BASE_ = _ssrw + (_ssrw_size / 2)); + + *(.gnu.linkonce.s.*) + *(__libc_atexit) + *(__libc_subinit) + *(__libc_subfreeres) + + /* microblaze-specific read-only small data area + and associated locating symbols */ + _ssro = . ; + *(.sdata2) + _essro = . ; + _ssro_size = _essro - _ssro; + PROVIDE(_SDA2_BASE_ = _ssro + (_ssro_size / 2)); + + . = ALIGN(4) ; +TOR: __CTOR_LIST__ = .; +TOR: LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2) +SINGLE_LINK: /* gcc uses crtbegin.o to find the start of +SINGLE_LINK: the constructors, so we make sure it is +SINGLE_LINK: first. Because this is a wildcard, it +SINGLE_LINK: doesn't matter if the user does not +SINGLE_LINK: actually link against crtbegin.o; the +SINGLE_LINK: linker won't look for a file to match a +SINGLE_LINK: wildcard. The wildcard also means that it +SINGLE_LINK: doesn't matter which directory crtbegin.o +SINGLE_LINK: is in. */ +SINGLE_LINK: KEEP (*crtbegin*.o(.ctors)) +SINGLE_LINK: /* We don't want to include the .ctor section from +SINGLE_LINK: from the crtend.o file until after the sorted ctors. +SINGLE_LINK: The .ctor section from the crtend file contains the +SINGLE_LINK: end of ctors marker and it must be last */ +SINGLE_LINK: KEEP (*(EXCLUDE_FILE (*crtend*.o ) .ctors)) +SINGLE_LINK: KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) +TOR: LONG(0) +TOR: __CTOR_END__ = .; +TOR: __DTOR_LIST__ = .; +TOR: LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2) +SINGLE_LINK: KEEP (*crtbegin*.o(.dtors)) +SINGLE_LINK: KEEP (*(EXCLUDE_FILE (*crtend*.o ) .dtors)) +SINGLE_LINK: KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) +TOR: LONG(0) +TOR: __DTOR_END__ = .; + + PROVIDE (__preinit_array_start = .); + KEEP (*(.preinit_array)) + PROVIDE (__preinit_array_end = .); + + PROVIDE (__init_array_start = .); + KEEP (*(SORT(.init_array.*))) + KEEP (*(.init_array)) + PROVIDE (__init_array_end = .); + + PROVIDE (__fini_array_start = .); + KEEP (*(.fini_array)) + KEEP (*(SORT(.fini_array.*))) + PROVIDE (__fini_array_end = .); + } > flatmem :data + + .note.ABI-tag : { *(.note.ABI-tag) } > flatmem + .eh_frame_hdr : { *(.eh_frame_hdr) } > flatmem + .eh_frame : { KEEP(*(.eh_frame)) } > flatmem + .gcc_except_table : { + KEEP(*(.gcc_except_table)) + KEEP(*(.gcc_except_table.*)) + } >flatmem + + . = ALIGN(0x10) ; + _edata = . ; + + .bss : { + . = ALIGN(0x4) ; + _sbss = ALIGN(0x4) ; + __bss_start = . ; + *(.dynsbss) + *(.sbss) + *(.sbss.*) + *(.scommon) + *(.dynbss) + *(.bss) + *(.bss.*) + *(.bss*) + *(.gnu.linkonce.b*) + *(COMMON) + . = ALIGN(0x10) ; + _ebss = . ; + _end = . ; + end = . ; + } > flatmem + + .stack : { + . = ALIGN(0x4); + _stack_start = .; + } > flatmem + + .junk 0 : { *(.rel*) *(.rela*) } + /DISCARD/ : { *(.note.GNU-stack) } + /* Stabs debugging sections. */ + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + .stab.excl 0 : { *(.stab.excl) } + .stab.exclstr 0 : { *(.stab.exclstr) } + .stab.index 0 : { *(.stab.index) } + .stab.indexstr 0 : { *(.stab.indexstr) } + .comment 0 : { *(.comment) } + /* DWARF debug sections. + Symbols in the DWARF debugging sections are relative to the beginning + of the section so we begin them at 0. */ + /* DWARF 1 */ + .debug 0 : { *(.debug) } + .line 0 : { *(.line) } + /* GNU DWARF 1 extensions */ + .debug_srcinfo 0 : { *(.debug_srcinfo) } + .debug_sfnames 0 : { *(.debug_sfnames) } + /* DWARF 1.1 and DWARF 2 */ + .debug_aranges 0 : { *(.debug_aranges) } + .debug_pubnames 0 : { *(.debug_pubnames) } + /* DWARF 2 */ + .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_line 0 : { *(.debug_line) } + .debug_frame 0 : { *(.debug_frame) } + .debug_str 0 : { *(.debug_str) } + .debug_loc 0 : { *(.debug_loc) } + .debug_macinfo 0 : { *(.debug_macinfo) } + /* SGI/MIPS DWARF 2 extensions */ + .debug_weaknames 0 : { *(.debug_weaknames) } + .debug_funcnames 0 : { *(.debug_funcnames) } + .debug_typenames 0 : { *(.debug_typenames) } + .debug_varnames 0 : { *(.debug_varnames) } +} -- 2.34.1