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

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* 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.
This commit is contained in:
Jeff Johnston
2009-09-28 16:43:57 +00:00
parent 6c249577fb
commit c38ed7c697
25 changed files with 6064 additions and 0 deletions
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98
libgloss/microblaze/crt2.S Normal file
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/* 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