| /*********************************************************************************************************************** | |
| * DISCLAIMER | |
| * This software is supplied by Renesas Electronics Corporation and is only | |
| * intended for use with Renesas products. No other uses are authorized. This | |
| * software is owned by Renesas Electronics Corporation and is protected under | |
| * all applicable laws, including copyright laws. | |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING | |
| * THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT | |
| * LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE | |
| * AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED. | |
| * TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS | |
| * ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE | |
| * FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR | |
| * ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE | |
| * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | |
| * Renesas reserves the right, without notice, to make changes to this software | |
| * and to discontinue the availability of this software. By using this software, | |
| * you agree to the additional terms and conditions found by accessing the | |
| * following link: | |
| * http://www.renesas.com/disclaimer | |
| * | |
| * Copyright (C) 2013 Renesas Electronics Corporation. All rights reserved. | |
| ***********************************************************************************************************************/ | |
| /*********************************************************************************************************************** | |
| * File Name : r_cg_sbrk.c | |
| * Version : Applilet4 for RX64M V1.00.00.00 [02 Aug 2013] | |
| * Device(s) : R5F564MLHxFC | |
| * Tool-Chain : CCRX | |
| * Description : Program of sbrk. | |
| * Creation Date: 07/02/2014 | |
| ***********************************************************************************************************************/ | |
| /*********************************************************************************************************************** | |
| Pragma directive | |
| ***********************************************************************************************************************/ | |
| /* Start user code for pragma. Do not edit comment generated here */ | |
| /* End user code. Do not edit comment generated here */ | |
| /*********************************************************************************************************************** | |
| Includes | |
| ***********************************************************************************************************************/ | |
| #include "r_cg_macrodriver.h" | |
| #include <stddef.h> | |
| #include <stdio.h> | |
| #include "r_cg_sbrk.h" | |
| #include "r_cg_userdefine.h" | |
| /*********************************************************************************************************************** | |
| Global variables and functions | |
| ***********************************************************************************************************************/ | |
| int8_t *sbrk(size_t size); | |
| extern int8_t *_s1ptr; | |
| union HEAP_TYPE | |
| { | |
| int16_t dummy ; /* Dummy for 4-byte boundary */ | |
| int8_t heap[HEAPSIZE]; /* Declaration of the area managed by sbrk */ | |
| }; | |
| static union HEAP_TYPE heap_area ; | |
| /* End address allocated by sbrk */ | |
| static int8_t *brk = (int8_t *) &heap_area; | |
| /**************************************************************************/ | |
| /* sbrk:Memory area allocation */ | |
| /* Return value:Start address of allocated area (Pass) */ | |
| /* -1 (Failure) */ | |
| /**************************************************************************/ | |
| int8_t *sbrk(size_t size) /* Assigned area size */ | |
| { | |
| int8_t *p; | |
| if (brk+size > heap_area.heap + HEAPSIZE) /* Empty area size */ | |
| { | |
| p = (int8_t *)-1; | |
| } | |
| else | |
| { | |
| p = brk; /* Area assignment */ | |
| brk += size; /* End address update */ | |
| } | |
| return p; | |
| } | |
| /* Start user code for adding. Do not edit comment generated here */ | |
| /* End user code. Do not edit comment generated here */ |