diff options
| author | Cristian Maglie <c.maglie@bug.st> | 2012-10-18 15:50:09 +0200 | 
|---|---|---|
| committer | Cristian Maglie <c.maglie@bug.st> | 2012-10-18 15:50:09 +0200 | 
| commit | 6a45ba48ab1f2d0a168373a02ba7fded40a3470e (patch) | |
| tree | 163448869b4dfcbce95dc877ffff61a709fba6b6 /firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/UTILS/STARTUP_FILES/GCC | |
| parent | c313b54c00635f1be14a1b09617dc9b8b562e589 (diff) | |
| parent | 6d296e0faba5b9910084c307a3f93cb2653bf7f8 (diff) | |
Merged upstream arduino branch
Diffstat (limited to 'firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/UTILS/STARTUP_FILES/GCC')
| -rw-r--r-- | firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/UTILS/STARTUP_FILES/GCC/crt0.x | 121 | 
1 files changed, 121 insertions, 0 deletions
| diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/UTILS/STARTUP_FILES/GCC/crt0.x b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/UTILS/STARTUP_FILES/GCC/crt0.x new file mode 100644 index 0000000..23b658b --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/UTILS/STARTUP_FILES/GCC/crt0.x @@ -0,0 +1,121 @@ +/* This file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief AVR32UC C runtime startup file. + * + * This file has been built from the Newlib crt0.S. + * + * - Compiler:           GNU GCC for AVR32 + * - Supported devices:  All AVR32UC devices can be used. + * + * \author               Atmel Corporation: http://www.atmel.com \n + *                       Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. 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 of 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. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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 + * + */ + +#include <avr32/io.h> + + +//! @{ +//! \verbatim + + +  // This must be linked @ 0x80000000 if it is to be run upon reset. +  .section  .reset, "ax", @progbits + + +  .global _start +  .type _start, @function +_start: +  // Jump to the C runtime startup routine. +  lda.w   pc, _stext + + +  // _stext is placed outside the .reset section so that the program entry point +  // can be changed without affecting the C runtime startup. +  .section  .text._stext, "ax", @progbits + + +  .global _stext +  .type _stext, @function +_stext: +  // Set initial stack pointer. +  lda.w   sp, _estack + +  // Set up EVBA so interrupts can be enabled. +  lda.w   r0, _evba +  mtsr    AVR32_EVBA, r0 + +  // Enable the exception processing. +  csrf    AVR32_SR_EM_OFFSET + +  // Load initialized data having a global lifetime from the data LMA. +  lda.w   r0, _data +  lda.w   r1, _edata +  cp      r0, r1 +  brhs    idata_load_loop_end +  lda.w   r2, _data_lma +idata_load_loop: +  ld.d    r4, r2++ +  st.d    r0++, r4 +  cp      r0, r1 +  brlo    idata_load_loop +idata_load_loop_end: + +  // Clear uninitialized data having a global lifetime in the blank static storage section. +  lda.w   r0, __bss_start +  lda.w   r1, _end +  cp      r0, r1 +  brhs    udata_clear_loop_end +  mov     r2, 0 +  mov     r3, 0 +udata_clear_loop: +  st.d    r0++, r2 +  cp      r0, r1 +  brlo    udata_clear_loop +udata_clear_loop_end: + +#ifdef CONFIG_FRAME_POINTER +  // Safety: Set the default "return" @ to the exit routine address. +  lda.w   lr, exit +#endif + +  // Start the show. +  lda.w   pc, main + + +//! \endverbatim +//! @} | 
