diff options
Diffstat (limited to 'c/src/lib/libbsp/m68k/idp/startup/linkcmds')
-rw-r--r-- | c/src/lib/libbsp/m68k/idp/startup/linkcmds | 154 |
1 files changed, 108 insertions, 46 deletions
diff --git a/c/src/lib/libbsp/m68k/idp/startup/linkcmds b/c/src/lib/libbsp/m68k/idp/startup/linkcmds index 8ffdb3f40d..9a30f57c94 100644 --- a/c/src/lib/libbsp/m68k/idp/startup/linkcmds +++ b/c/src/lib/libbsp/m68k/idp/startup/linkcmds @@ -12,60 +12,122 @@ * both the rom68k and the mon68k monitors. */ -StackSize = DEFINED(StackSize) ? StackSize : 0x1000; - MEMORY { ram : org = 0x10000, l = 2M } +/* + * Declare some sizes. + */ +HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000; +StackSize = DEFINED(StackSize) ? StackSize : 0x1000; + SECTIONS { - .text 0x10000: - { - text_start = . ; - _text_start = . ; - *(.text) - . = ALIGN (16); + ram : { + . = .; + } >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*) + + . = 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 = .); + + . += StackSize; + PROVIDE (_stack_init = .); - *(.eh_fram) - . = ALIGN (16); + . = ALIGN (16); + PROVIDE (_HeapStart = .); + . += HeapSize; + PROVIDE (_HeapEnd = .); - . = ALIGN (16); - *(.gcc_exc) + clear_end = .; - /* - * 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__ = .; - etext = ALIGN( 0x10 ) ; - _etext = .; - } - .data : { - data_start = . ; - _data_start = .; - *(.data) - edata = ALIGN( 0x10 ) ; - _edata = .; - } - .bss : { - bss_start = . ; - _bss_start = . ; - *(.bss) - *(COMMON) - . += StackSize; /* XXX -- Old gld can't handle this */ - . = ALIGN (16); - stack_init = .; - end = . ; - _end = . ; - } + PROVIDE (_WorkspaceBase = .); + } >ram } |