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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1996-05-01 15:25:33 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1996-05-01 15:25:33 +0000 |
commit | 996a9cb4e2a7d2d9ae43b8e3eb531a81ccefe690 (patch) | |
tree | 4d342614395f1c4fc7c3128a92212cef2e31e69c /c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.prom | |
parent | Updates from Eric Norum to use the mcpu32 flags and fix comments. (diff) | |
download | rtems-996a9cb4e2a7d2d9ae43b8e3eb531a81ccefe690.tar.bz2 |
Updates from Eric Norum.
Diffstat (limited to 'c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.prom')
-rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.prom | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.prom b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.prom new file mode 100644 index 0000000000..ef1c3ee6e2 --- /dev/null +++ b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.prom @@ -0,0 +1,111 @@ +/* + * This file contains GNU linker directives for a generic MC68360 board. + * These linker directives are for producing a PROM version.. + * To create the PROM image from the linkter output you must use objcopy + * (--adjust-section-vma) to place the data segment at the end of the text + * segment in the PROM. The start-up code takes care of copying this region + * to RAM. + * + * Saskatchewan Accelerator Laboratory + * University of Saskatchewan + * Saskatoon, Saskatchewan, CANADA + * eric@skatter.usask.ca + * + * $Id$ + */ + +/* + * a.out format doesn't handle prom images very well + */ +OUTPUT_FORMAT(coff-m68k) + +/* + * Declare on-board memory + */ +MEMORY { + ram : ORIGIN = 0x00000000, LENGTH = 4M + rom : ORIGIN = 0xFF000000, LENGTH = 1M + dpram : ORIGIN = 0xFE000000, LENGTH = 8k +} + +/* + * Declare some sizes + */ +HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000; +StackSize = DEFINED(StackSize) ? StackSize : 0x1000; + +/* + * Declare low-order three octets of Ethernet address + */ +ETHERNET_ADDRESS = DEFINED(ETHERNET_ADDRESS) ? ETHERNET_ADDRESS : 0xDEAD12; + +/* + * Load objects + */ +SECTIONS { + /* + * Boot PROM + */ + rom : { + _RomBase = .; + __RomBase = .; + } >rom + + /* + * Dynamic RAM + */ + ram : { + _RamBase = .; + __RamBase = .; + } >ram + + /* + * Text, data and bss segments + */ + .text : { + CREATE_OBJECT_SYMBOLS + *(.text) + . = ALIGN (16); + etext = .; + _etext = .; + } >rom + .data : { + copy_start = .; + *(.data) + . = ALIGN (16); + _edata = .; + copy_end = .; + } >ram + .bss : { + M68Kvec = .; + _M68Kvec = .; + . += (256 * 4); + clear_start = .; + *(.bss) + *(COMMON) + . = ALIGN (16); + _end = .; + + _HeapStart = .; + __HeapStart = .; + . += HeapSize; + . += StackSize; + . = ALIGN (16); + stack_init = .; + clear_end = .; + + _WorkspaceBase = .; + __WorkspaceBase = .; + } >ram + + /* + * On-chip memory/peripherals + */ + dpram : { + m360 = .; + _m360 = .; + . += (8 * 1024); + + } >dpram + +} |