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-rw-r--r--c/src/lib/libbsp/m68k/gen68360/startup/linkcmds117
1 files changed, 117 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds
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+++ b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds
@@ -0,0 +1,117 @@
+/*
+ * This file contains GNU linker directives for a generic MC68360 board.
+ * Variations in memory size and allocation can be made by
+ * overriding some values with linker command-line arguments.
+ *
+ * Saskatchewan Accelerator Laboratory
+ * University of Saskatchewan
+ * Saskatoon, Saskatchewan, CANADA
+ * eric@skatter.usask.ca
+ *
+ * $Id$
+ */
+
+/*
+ * Declare some sizes.
+ * XXX: The assignment of ". += XyzSize;" fails in older gld's if the
+ * number used there is not constant. If this happens to you, edit
+ * the lines marked XXX below to use a constant value.
+ */
+RamSize = DEFINED(RamSize) ? RamSize : 4M;
+HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
+StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
+
+/*
+ * Declare on-board memory.
+ * It would be nice if the ram length could be given as
+ * LENGTH=RamSize, but gld doesn't allow non-constant
+ * values in the LENGTH expression.
+ */
+MEMORY {
+ ram : ORIGIN = 0x00000000, LENGTH = 64M
+ rom : ORIGIN = 0x0F000000, LENGTH = 1M
+ dpram : ORIGIN = 0x0E000000, LENGTH = 8k
+}
+
+/*
+ * Declare low-order three octets of Ethernet address.
+ */
+ETHERNET_ADDRESS = DEFINED(ETHERNET_ADDRESS) ? ETHERNET_ADDRESS : 0xDEAD12;
+
+/*
+ * Load objects
+ */
+SECTIONS {
+ /*
+ * Hardware variations
+ */
+ _RamSize = RamSize;
+ __RamSize = RamSize;
+
+ /*
+ * 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 = .;
+ } >ram
+ .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; /* XXX -- Old gld can't handle this */
+ . += StackSize; /* XXX -- Old gld can't handle this */
+ /* . += 0x10000; */ /* HeapSize for old gld */
+ /* . += 0x1000; */ /* StackSize for old gld */
+ . = ALIGN (16);
+ stack_init = .;
+ clear_end = .;
+
+ _WorkspaceBase = .;
+ __WorkspaceBase = .;
+ } >ram
+
+ /*
+ * On-chip memory/peripherals
+ */
+ dpram : {
+ m360 = .;
+ _m360 = .;
+ . += (8 * 1024);
+
+ } >dpram
+}