20000317 sourceware import

1 files changed, 128 insertions, 0 deletions

diff --git a/libgloss/m68k/mvme135.ld b/libgloss/m68k/mvme135.ld
new file mode 100644
index 000000000..dba0dbe23
--- /dev/null
+++ b/libgloss/m68k/mvme135.ld
@@ -0,0 +1,128 @@
+STARTUP(crt0.o)
+OUTPUT_ARCH(m68k)
+/* Uncomment this if you want srecords. This is needed for a.out
+ * if you plan to use GDB.
+OUTPUT_FORMAT(srec)
+ */
+SEARCH_DIR(.)
+GROUP(-lmvme135 -lc -lgcc)
+__DYNAMIC  =  0;
+
+/*
+ * Setup the memory map of the Motorola MVME135 Board
+ * stack grows down from high memory.
+ *
+ * The memory map look like this:
+ * +--------------------+ <- low memory
+ * | .text              |
+ * |        _etext      |
+ * |        ctor list   | the ctor and dtor lists are for
+ * |        dtor list   | C++ support
+ * +--------------------+
+ * | .data              | initialized data goes here
+ * |        _edata      |
+ * +--------------------+
+ * | .bss               |
+ * |        __bss_start | start of bss, cleared by crt0
+ * |        _end        | start of heap, used by sbrk()
+ * +--------------------+
+ * .                    .
+ * .                    .
+ * .                    .
+ * |        __stack     | top of stack
+ * +--------------------+
+ */
+
+MEMORY
+{
+  ram (rwx) : ORIGIN = 0x5000, LENGTH = 1M
+}
+
+/*
+ * Allocate the stack to be at the top of memory, since the stack
+ * grows down
+ */
+
+PROVIDE (__stack = 1M - 8);
+
+/*
+ * Initalize some symbols to be zero so we can reference them in the
+ * crt0 without core dumping. These functions are all optional, but
+ * we do this so we can have our crt0 always use them if they exist. 
+ * This is so BSPs work better when using the crt0 installed gcc.
+ * We have to initalize them twice, so we cover a.out (which prepends
+ * an underscore) and coff object file formats.
+ */
+PROVIDE (hardware_init_hook = 0);
+PROVIDE (_hardware_init_hook = 0);
+PROVIDE (software_init_hook = 0);
+PROVIDE (_software_init_hook = 0);
+/*
+ * stick everything in ram (of course)
+ */
+SECTIONS
+{
+  .text :
+  {
+    *(.text)
+    . = ALIGN(0x4);
+     __CTOR_LIST__ = .;
+    ___CTOR_LIST__ = .;
+    LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
+    *(.ctors)
+    LONG(0)
+    __CTOR_END__ = .;
+    __DTOR_LIST__ = .;
+    ___DTOR_LIST__ = .;
+    LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
+    *(.dtors)
+     LONG(0)
+    __DTOR_END__ = .;
+    *(.rodata)
+    *(.gcc_except_table) 
+
+    . = ALIGN(0x2);
+    __INIT_SECTION__ = . ;
+    LONG (0x4e560000)	/* linkw %fp,#0 */
+    *(.init)
+    SHORT (0x4e5e)	/* unlk %fp */
+    SHORT (0x4e75)	/* rts */
+
+    __FINI_SECTION__ = . ;
+    LONG (0x4e560000)	/* linkw %fp,#0 */
+    *(.fini)
+    SHORT (0x4e5e)	/* unlk %fp */
+    SHORT (0x4e75)	/* rts */
+
+    _etext = .;
+    *(.lit)
+  } > ram
+
+  .data :
+  {
+    *(.shdata)
+    *(.data)
+    _edata = .;
+  } > ram
+
+  .bss :
+  {
+    . = ALIGN(0x4);
+    __bss_start = . ;
+    *(.shbss)
+    *(.bss)
+    *(COMMON)
+    _end =  ALIGN (0x8);
+    __end = _end;
+  } > ram
+
+  .stab 0 (NOLOAD) :
+  {
+    *(.stab)
+  }
+
+  .stabstr 0 (NOLOAD) :
+  {
+    *(.stabstr)
+  }
+}