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, 98 insertions, 0 deletions

diff --git a/libgloss/microblaze/crt2.S b/libgloss/microblaze/crt2.S
new file mode 100644
index 000000000..e3fb15b26
--- /dev/null
+++ b/libgloss/microblaze/crt2.S
@@ -0,0 +1,98 @@
+/* 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.
+  
+        
+        MicroBlaze Vector Map for standalone executables that are boot-strapped
+
+         Address                Vector type                 Label
+         -------                -----------                 ------    
+
+    	# 0x00 #		(-- IMM --)
+	# 0x04 #                Reset                       (-- Don't Care --)
+    
+	# 0x08 #		(-- IMM --)
+	# 0x0c #		Software Exception          _exception_handler
+    
+	# 0x10 #		(-- IMM --)
+	# 0x14 #		Hardware Interrupt          _interrupt_handler
+    
+        # 0x18 #                (-- IMM --)
+        # 0x1C #                Breakpoint Exception        (-- Don't Care --)
+    
+        # 0x20 #                (-- IMM --) 
+        # 0x24 #                Hardware Exception          _hw_exception_handler
+
+*/      
+    
+        .section .vectors.sw_exception, "ax"
+        .align 2
+_vector_sw_exception:       
+        brai    _exception_handler
+
+        .section .vectors.interrupt, "ax"
+        .align 2
+_vector_interrupt:      
+        brai    _interrupt_handler
+
+        .section .vectors.hw_exception, "ax"
+        .align 2
+_vector_hw_exception:       
+        brai    _hw_exception_handler
+
+        .section .text
+        .globl _start
+        .align 2
+        .ent _start
+        .type _start, @function    
+_start:
+	la	r13, r0, _SDA_BASE_         /* Set the Small Data Anchors and the stack pointer */
+	la	r2, r0, _SDA2_BASE_
+	la	r1, r0, _stack-16           /* 16 bytes (4 words are needed by crtinit for args and link reg */
+
+	brlid	r15, _crtinit               /* Initialize BSS and run program */
+	nop
+
+        brlid   r15, exit                   /* Call exit with the return value of main */
+        addik   r5, r3, 0                   
+       
+        /* Control does not reach here */
+    
+        .end _start
+    
+/* 
+        _exit 
+        Our simple _exit      
+*/    
+        .globl _exit
+        .align 2
+        .ent _exit
+        .type _exit, @function
+_exit:
+        bri     0
+	.end _exit