2009-09-28 Michael Eager <eager@eagercon.com>

        * configure.in: Add microblaze-*-*.
        * configure: Add microblaze-*-* (not regenerated.)
        * microblaze: NEW microblaze target directory.
        * microblaze/configure.in: NEW.
        * microblaze/configure: Generate.
        * microblaze/Makefile.in: NEW.
        * microblaze/{crt0.S, crt1.S, crt2.S, crt3.S, crt4.S, crtinit.S}: NEW.
        * microblaze/{pgcrtinit.S, _program_clean.S, _program_init.S,
        sbrk.c, sim-crtinit.S, sim-pgcrtinit.S, timer.c, _exception_handler.S,
        _hw_exception_handler.S, _interrupt_handler.S, xil_malloc.c,
        nnxil_printf.c, xil_sbrk.c: NEW.
        * microblaze/xilinx.ld: NEW.

1 files changed, 87 insertions, 0 deletions

diff --git a/libgloss/microblaze/crtinit.S b/libgloss/microblaze/crtinit.S
new file mode 100644
index 0000000..78eb76d
--- /dev/null
+++ b/libgloss/microblaze/crtinit.S
@@ -0,0 +1,87 @@
+/* Copyright (c) 2001, 2009 Xilinx, Inc.  All rights reserved. 
+   
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are
+   met:
+   
+   1.  Redistributions source code must retain the above copyright notice,
+   this list of conditions and the following disclaimer. 
+   
+   2.  Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution. 
+   
+   3.  Neither the name of Xilinx nor the names of its contributors may be
+   used to endorse or promote products derived from this software without
+   specific prior written permission. 
+   
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS
+   IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+   TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+   PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+   HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+   TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */ 
+
+	.globl _crtinit
+	.align 2
+	.ent _crtinit
+        .type _crtinit, @function
+_crtinit:
+	addi	r1, r1, -20               	/* Save Link register	 */
+	swi	r15, r1, 0
+
+    	addi	r6, r0, __sbss_start          	/* clear SBSS */
+	addi	r7, r0, __sbss_end	
+	rsub	r18, r6, r7		
+	blei	r18, .Lendsbss
+
+.Lloopsbss:	
+	swi	r0, r6, 0
+	addi	r6, r6, 4
+	rsub	r18, r6, r7
+	bgti	r18, .Lloopsbss
+.Lendsbss:
+
+	addi	r6, r0, __bss_start             /* clear BSS */
+	addi	r7, r0, __bss_end		
+    	rsub	r18, r6, r7		
+	blei	r18, .Lendbss
+.Lloopbss:	
+	swi	r0, r6, 0
+	addi	r6, r6, 4
+	rsub	r18, r6, r7
+	bgti	r18, .Lloopbss
+.Lendbss:
+
+	brlid	r15, _program_init              /* Initialize the program  */
+	nop
+
+        brlid   r15, __init                     /* Invoke language initialization functions */
+        nop
+    
+	addi	r6, r0, 0                       /* Initialize argc = 1 and argv = NULL and envp = NULL  */
+	addi	r7, r0, 0			
+      	brlid	r15, main                       /* Execute the program */
+    	addi	r5, r0, 0
+
+        addik   r19, r3, 0                      /* Save return value */
+    
+        brlid   r15, __fini                     /* Invoke language cleanup functions */
+        nop
+    
+	brlid	r15, _program_clean             /* Cleanup the program  */
+	nop
+
+	lw	r15, r1, r0                     /* Return back to CRT   */
+
+        addik   r3, r19, 0                      /* Restore return value */
+	rtsd	r15, 8
+    	addi	r1, r1, 20
+	.end _crtinit
+