From c0ebf023b795036f6f0d8bcf887b3af27c90e85e Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Thu, 13 Jan 2000 15:06:24 +0000
Subject: New patch from Eric Norum plus some minor mods by Joel.

---
 c/src/lib/libbsp/m68k/gen68360/startup/linkcmds | 48 ++++++-------------------
 1 file changed, 10 insertions(+), 38 deletions(-)

(limited to 'c/src/lib/libbsp/m68k/gen68360/startup/linkcmds')

diff --git a/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds
index c72364b9d3..39f4c8dbd3 100644
--- a/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds
+++ b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds
@@ -13,9 +13,10 @@
 
 /*
  * Declare some sizes.
+ * A heap size of 0 means `use all available memory for the heap'.
  */
-HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
-StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
+_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x0;
+_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
 
 /*
  * Declare on-board memory.
@@ -57,18 +58,6 @@ SECTIONS {
 
 		/*
 		 * 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)
@@ -81,15 +70,6 @@ SECTIONS {
 
 		/*
 		 * 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)
@@ -117,33 +97,27 @@ SECTIONS {
                 PROVIDE (etext = .);
         } >ram
         .data : {
-                copy_start = .;
+                _copy_start = .;
                 *(.data)
 		*(.gnu.linkonce.d*)
 		*(.gcc_except_table)
                 . = ALIGN (16);
-                PROVIDE (_edata = .);
-                copy_end = .;
+                PROVIDE (edata = .);
+                _copy_end = .;
         } >ram
         .bss : {
                 M68Kvec = .;
-                _M68Kvec = .;
                 . += (256 * 4);
-                clear_start = .;
+                _clear_start = .;
                 *(.bss)
                 *(COMMON)
                 . = ALIGN (16);
                 PROVIDE (end = .);
 
-                . += StackSize;
-                PROVIDE (_stack_init = .);
-
+                . += _StackSize;
                 . = ALIGN (16);
-                PROVIDE (_HeapStart = .);
-                . += HeapSize;
-                PROVIDE (_HeapEnd = .);
-
-                PROVIDE (_clear_end = .);
+                _stack_init = .;
+                _clear_end = .;
 
                 _WorkspaceBase = .;
         } >ram
@@ -153,8 +127,6 @@ SECTIONS {
          */
         dpram : {
                 m360 = .;
-                _m360 = .;
                 . += (8 * 1024);
-
         } >dpram
 }
-- 
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