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-rw-r--r--c/src/lib/libbsp/m68k/mvme167/startup/linkcmds227
1 files changed, 134 insertions, 93 deletions
diff --git a/c/src/lib/libbsp/m68k/mvme167/startup/linkcmds b/c/src/lib/libbsp/m68k/mvme167/startup/linkcmds
index 9cbf889dd7..c22f578905 100644
--- a/c/src/lib/libbsp/m68k/mvme167/startup/linkcmds
+++ b/c/src/lib/libbsp/m68k/mvme167/startup/linkcmds
@@ -22,11 +22,11 @@ OUTPUT_ARCH(m68k)
ENTRY(_start)
/*
- * Declare some sizes.
+ * Declare some sizes. Heap is sized at whatever ram space is left.
*/
-_RamBase = 0x00800000;
+_RamBase = DEFINED(_RamBase) ? _RamBase : 0x00800000;
_RamSize = DEFINED(_RamSize) ? _RamSize : 4M;
-_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
+_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
MEMORY
@@ -42,103 +42,144 @@ MEMORY
SECTIONS
{
- ram : {
- . = .;
- } >ram
+ /*
+ * Text, data and bss segments
+ */
+ .text : {
+ *(.text)
- /*
- * Text, data and bss segments
- */
- .text : {
- *(.text)
+ /*
+ * C++ constructors/destructors
+ */
+ *(.gnu.linkonce.t.*)
- /*
- * 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)
- /*
- * 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)
- /*
- * 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)
- /*
- * Exception frame info
- */
- . = ALIGN (16);
- *(.eh_frame)
+ /*
+ * Read-only data
+ */
+ . = ALIGN (16);
+ PROVIDE(_rodata_start = . );
+ *(.rodata)
+ *(.gnu.linkonce.r*)
+ PROVIDE(_erodata = . );
- /*
- * 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 : {
+ _clear_start = .;
+ *(.bss)
+ *(COMMON)
+ . = ALIGN (16);
+ PROVIDE (end = .);
- . = 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 : {
- _clear_start = .;
- *(.bss)
- *(COMMON)
- . = ALIGN (16);
- PROVIDE (end = .);
+ . += _StackSize;
+ . = ALIGN (16);
+ _stack_init = .;
+ _clear_end = .;
- . += _StackSize;
- . = ALIGN (16);
- _stack_init = .;
- _clear_end = .;
+ _WorkspaceBase = .;
+ } >ram
- _WorkspaceBase = .;
- } >ram
+ /* Stabs debugging sections. */
+ .stab 0 : { *(.stab) }
+ .stabstr 0 : { *(.stabstr) }
+ .stab.excl 0 : { *(.stab.excl) }
+ .stab.exclstr 0 : { *(.stab.exclstr) }
+ .stab.index 0 : { *(.stab.index) }
+ .stab.indexstr 0 : { *(.stab.indexstr) }
+ .comment 0 : { *(.comment) }
+
+ /* DWARF debug sections.
+ Symbols in the DWARF debugging sections are relative to the beginning
+ of the section so we begin them at 0. */
+ /* DWARF 1 */
+ .debug 0 : { *(.debug) }
+ .line 0 : { *(.line) }
+
+ /* GNU DWARF 1 extensions */
+ .debug_srcinfo 0 : { *(.debug_srcinfo) }
+ .debug_sfnames 0 : { *(.debug_sfnames) }
+
+ /* DWARF 1.1 and DWARF 2 */
+ .debug_aranges 0 : { *(.debug_aranges) }
+ .debug_pubnames 0 : { *(.debug_pubnames) }
+
+ /* DWARF 2 */
+ .debug_info 0 : { *(.debug_info) }
+ .debug_abbrev 0 : { *(.debug_abbrev) }
+ .debug_line 0 : { *(.debug_line) }
+ .debug_frame 0 : { *(.debug_frame) }
+ .debug_str 0 : { *(.debug_str) }
+ .debug_loc 0 : { *(.debug_loc) }
+ .debug_macinfo 0 : { *(.debug_macinfo) }
+
+ /* SGI/MIPS DWARF 2 extensions */
+ .debug_weaknames 0 : { *(.debug_weaknames) }
+ .debug_funcnames 0 : { *(.debug_funcnames) }
+ .debug_typenames 0 : { *(.debug_typenames) }
+ .debug_varnames 0 : { *(.debug_varnames) }
+ /* These must appear regardless of . */
}