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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2000-08-01 20:01:14 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2000-08-01 20:01:14 +0000 |
commit | b812f841553be30baab45f08b3f6fda692b5166b (patch) | |
tree | b3dc6aeca3a4ced907f1c0262f9a714b44d3baab /c/src/lib/libbsp/m68k/sim68000/startup/linkcmds | |
parent | Look at both hardware and software FP settings. (diff) | |
download | rtems-b812f841553be30baab45f08b3f6fda692b5166b.tar.bz2 |
Added sim68000 BSP for the BSVC simulator. This BSP includes the
alias simcpu32 that supports the CPU32 simulator in BSVC. At this
point, it is still under development.
Diffstat (limited to 'c/src/lib/libbsp/m68k/sim68000/startup/linkcmds')
-rw-r--r-- | c/src/lib/libbsp/m68k/sim68000/startup/linkcmds | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/m68k/sim68000/startup/linkcmds b/c/src/lib/libbsp/m68k/sim68000/startup/linkcmds new file mode 100644 index 0000000000..82f44ba523 --- /dev/null +++ b/c/src/lib/libbsp/m68k/sim68000/startup/linkcmds @@ -0,0 +1,129 @@ +/* + * $Id$ + * + * MC68302 Linker command file + * + */ + +/* + * Declare some sizes. + */ +_RomBase = DEFINED(_RomBase) ? _RomBase : 0x0; +_RomSize = DEFINED(_RomSize) ? _RomSize : 256K; +_RamBase = DEFINED(_RamBase) ? _RamBase : 0x40000; +_RamSize = DEFINED(_RamSize) ? _RamSize : 128K; +_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 32K; +_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000; + +/* + * Declare on-board memory. + */ +MEMORY { + eprom : ORIGIN = 0x00000000, LENGTH = 256K + ram : ORIGIN = 0x00040000, LENGTH = 128K +} +SECTIONS +{ + ram : { + . = .; + } >ram + + /* + * Text, data and bss segments + */ + .text 0x0 : { + *(.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 = .); + } + .data 0x40000 : AT (ADDR(.text) + SIZEOF (.text)) { + PROVIDE (_copy_start = .); + *(.data) + *(.gnu.linkonce.d*) + *(.gcc_except_table) + . = ALIGN (16); + PROVIDE (_edata = .); + PROVIDE (_copy_end = .); + } + .bss ADDR(.data) + SIZEOF(.data) : { + _clear_start = .; + *(.bss) + *(COMMON) + . = ALIGN (16); + PROVIDE (end = .); + + . += _StackSize; + . = ALIGN (16); + _stack_init = .; + _clear_end = .; + + _WorkspaceBase = .; + } +} + +_VBR = 0xFFFFFFFF; /* indicates VBR table is in ROM */ + |