diff options
Diffstat (limited to 'libgloss/sparc/cygmon-sparc64-ld.src')
| -rw-r--r-- | libgloss/sparc/cygmon-sparc64-ld.src | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/libgloss/sparc/cygmon-sparc64-ld.src b/libgloss/sparc/cygmon-sparc64-ld.src new file mode 100644 index 000000000..efa0da13d --- /dev/null +++ b/libgloss/sparc/cygmon-sparc64-ld.src @@ -0,0 +1,159 @@ +/* + *uncomment this if you want the linker to output srecords. +OUTPUT_FORMAT(srec) + * + */ +ENTRY(start) +OUTPUT_ARCH(TARGET_OBJ_FORMAT) +SEARCH_DIR(.) +STARTUP(cygmon-crt0.o) +GROUP(cygmon-salib.o -lc -lgcc -lc) + +/* + * The memory map looks like this: + * +--------------------+ <- low memory + * | .text | + * | _stext | + * | _etext | + * | ctor list | the ctor and dtor lists are for + * | dtor list | C++ support + * | _end_text | + * +--------------------+ + * | .data | initialized data goes here + * | _sdata | + * | _edata | + * +--------------------+ + * | .bss | + * | __bss_start | start of bss, cleared by crt0 + * | _end | start of heap, used by sbrk() + * +--------------------+ + * | heap space | + * | _ENDHEAP | + * | stack space | + * | __stack | top of stack + * +--------------------+ <- high memory + */ + +_STACK_SIZE = (16 * 1024); +_RAM_SIZE = 1M; +_RAM_START = 0x4000; +_RAM_END = _RAM_START + _RAM_SIZE; + +/* + * Setup the standard memory map. The stack grows down towards low memory. + */ +MEMORY +{ + ram : ORIGIN = 0x4000, LENGTH = 1M +} + +__stack = (_RAM_START + _RAM_SIZE - 4 * 16) - _STACK_SIZE; + +/* + * All the symbols that might be accessed from C code need to be + * listed twice, once with an additional underscore. aout format needs + * and extra underscore, whereas coff & elf doesn't. This is to work + * with both. + */ +/* + * Initalize some symbols to be zero so we can reference them in the + * crt0 without core dumping. These functions are all optional, but + * we do this so we can have our crt0 always use them if they exist. + * This is so BSPs work better when using the crt0 installed with gcc. + * We have to initalize them twice, so we cover a.out (which prepends + * an underscore) and coff object file formats. + */ +PROVIDE (hardware_init_hook = 0); +PROVIDE (_hardware_init_hook = 0); +PROVIDE (software_init_hook = 0); +PROVIDE (_software_init_hook = 0); +SECTIONS +{ + .text : { + stext = .; + _stext = .; + CREATE_OBJECT_SYMBOLS + *(.text) + __CTOR_LIST__ = .; + LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2) + *(.ctors) + LONG(0) + __CTOR_END__ = .; + __DTOR_LIST__ = .; + LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2) + *(.dtors) + LONG(0) + __DTOR_END__ = .; + *(.init) + *(.lit) + *(.rodata) + *(.shdata) + *(.eh_frame) + *(.gnu.linkonce.t*) + *(.gnu.linkonce.r*) + *(.gcc_except_table) + *(.fini) + _etext = .; + } > ram + .shbss SIZEOF(.text) + ADDR(.text) : { + *(.shbss) + } + .talias : { } > ram + .data : { + sdata = .; + _sdata = .; + *(.data) + *(.gnu.linkonce.d*) + edata = .; + _edata = .; + } > ram + .bss SIZEOF(.data) + ADDR(.data) : { + sbss = . ; + _sbss = . ; + __bss_start = ALIGN(0x8); + __bss_start = ALIGN(0x8); + *(.bss) + *(COMMON) + end = ALIGN(0x8); + _end = ALIGN(0x8); + __end = ALIGN(0x8); + ebss = .; + _ebss = .; + } + .mstack : { } > ram + .rstack : { } > ram + /* 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) } + .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) } + /* These must appear regardless of . */ +} |