diff options
Diffstat (limited to 'c/src/lib/libbsp/m68k/mvme147s/startup/linkcmds')
-rw-r--r-- | c/src/lib/libbsp/m68k/mvme147s/startup/linkcmds | 164 |
1 files changed, 107 insertions, 57 deletions
diff --git a/c/src/lib/libbsp/m68k/mvme147s/startup/linkcmds b/c/src/lib/libbsp/m68k/mvme147s/startup/linkcmds index 325b77c485..f4cccbd241 100644 --- a/c/src/lib/libbsp/m68k/mvme147s/startup/linkcmds +++ b/c/src/lib/libbsp/m68k/mvme147s/startup/linkcmds @@ -16,72 +16,122 @@ * $Id$ */ +/* + * Declare some sizes. + */ +HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000; StackSize = DEFINED(StackSize) ? StackSize : 0x1000; MEMORY - { - ram : org = 0x7000, l = 0x3d8fff - } +{ + ram : org = 0x0, l = 0x400000 +} SECTIONS { - .text 0x7000 : - { - text_start = . ; - _text_start = . ; - *(.text) - . = ALIGN (16); + ram : { + . = 0x7000; + } >ram + + /* + * Text, data and bss segments + */ + .text : { + *(.text) + + /* + * C++ constructors/destructors + */ + *(.gnu.linkonce.t.*) + + /* + * Initialization and finalization code. + * + * Various files can provide initialization and finalization + * functions. crtbegin.o and crtend.o are two instances. The + * body of these functions are in .init and .fini sections. We + * accumulate the bodies here, and prepend function prologues + * from crti.o and function epilogues from crtn.o. crti.o must + * be linked first; crtn.o must be linked last. Because these + * are wildcards, it doesn't matter if the user does not + * actually link against crti.o and crtn.o; the linker won't + * look for a file to match a wildcard. The wildcard also + * means that it doesn't matter which directory crti.o and + * crtn.o are in. + */ + PROVIDE (_init = .); + *crti.o(.init) + *(.init) + *crtn.o(.init) + PROVIDE (_fini = .); + *crti.o(.fini) + *(.fini) + *crtn.o(.fini) + + /* + * C++ constructors/destructors + * + * gcc uses crtbegin.o to find the start of the constructors + * and destructors so we make sure it is first. Because this + * is a wildcard, it doesn't matter if the user does not + * actually link against crtbegin.o; the linker won't look for + * a file to match a wildcard. The wildcard also means that + * it doesn't matter which directory crtbegin.o is in. The + * constructor and destructor list are terminated in + * crtend.o. The same comments apply to it. + */ + . = ALIGN (16); + *crtbegin.o(.ctors) + *(.ctors) + *crtend.o(.ctors) + *crtbegin.o(.dtors) + *(.dtors) + *crtend.o(.dtors) + + /* + * Exception frame info + */ + . = ALIGN (16); + *(.eh_frame) + + /* + * Read-only data + */ + . = ALIGN (16); + _rodata_start = . ; + *(.rodata) + *(.gnu.linkonce.r*) - *(.gnu.linkonce.t.*) - *(.descriptors) - /* .gnu.warning sections are handled specially by elf32.em. */ - *(.gnu.warning) + . = ALIGN (16); + PROVIDE (_etext = .); + } >ram + .data : { + PROVIDE (_copy_start = .); + *(.data) + *(.gnu.linkonce.d*) + *(.gcc_except_table) + . = ALIGN (16); + PROVIDE (_edata = .); + PROVIDE (_copy_end = .); + } >ram + .bss : { + PROVIDE (_bss_start = .); + PROVIDE (_clear_start = .); + *(.bss) + *(COMMON) + . = ALIGN (16); + PROVIDE (end = .); - *(.eh_fram) - . = ALIGN (16); + . += StackSize; + PROVIDE (_stack_init = .); - /* - * C++ constructors - */ - __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__ = .; + . = ALIGN (16); + PROVIDE (_HeapStart = .); + . += HeapSize; + PROVIDE (_HeapEnd = .); - _rodata_start = . ; - *(.rodata) - *(.gnu.linkonce.r*) - _erodata = ALIGN( 0x10 ) ; + clear_end = .; - etext = ALIGN( 0x10 ) ; - _etext = .; - } - .data ADDR( .text ) + SIZEOF( .text ): - { - data_start = . ; - _data_start = .; - *(.data) - *(.gnu.linkonce.d*) - *(.gcc_except_table) - edata = ALIGN( 0x10 ) ; - _edata = .; - } - .bss ADDR( .data ) + SIZEOF( .data ): - { - bss_start = . ; - _bss_start = . ; - *(.bss) - *(COMMON) - . += StackSize; /* XXX -- Old gld can't handle this */ - . = ALIGN (16); - stack_init = .; - end = . ; - _end = . ; - } + PROVIDE (_WorkspaceBase = .); + } >ram } |