teralytic / mbed-dev

mbed library sources. Supersedes mbed-src.

Fork of mbed by teralytic

targets/cmsis/TARGET_NXP/TARGET_LPC11XX_11CXX/TOOLCHAIN_GCC_CS/sys.cpp@144:ef7eb2e8f9f7, 2016-09-02 (annotated)

Committer:
<>
Date:
Fri Sep 02 15:07:44 2016 +0100
Revision:
144:ef7eb2e8f9f7
Parent:
0:9b334a45a8ff 
This updates the lib to the mbed lib v125

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 #include "cmsis.h"
<> 144:ef7eb2e8f9f7 2 #include <sys/types.h>
<> 144:ef7eb2e8f9f7 3 #include <errno.h>
<> 144:ef7eb2e8f9f7 4
<> 144:ef7eb2e8f9f7 5 extern "C" {
<> 144:ef7eb2e8f9f7 6
<> 144:ef7eb2e8f9f7 7 struct SCS3Regions {
<> 144:ef7eb2e8f9f7 8 unsigned long Dummy;
<> 144:ef7eb2e8f9f7 9 unsigned long* InitRam;
<> 144:ef7eb2e8f9f7 10 unsigned long* StartRam;
<> 144:ef7eb2e8f9f7 11 unsigned long InitSizeRam;
<> 144:ef7eb2e8f9f7 12 unsigned long ZeroSizeRam;
<> 144:ef7eb2e8f9f7 13 };
<> 144:ef7eb2e8f9f7 14
<> 144:ef7eb2e8f9f7 15 extern unsigned long __cs3_regions;
<> 144:ef7eb2e8f9f7 16 extern unsigned long __cs3_heap_start;
<> 144:ef7eb2e8f9f7 17
<> 144:ef7eb2e8f9f7 18 int main(void);
<> 144:ef7eb2e8f9f7 19 void __libc_init_array(void);
<> 144:ef7eb2e8f9f7 20 void exit(int ErrorCode);
<> 144:ef7eb2e8f9f7 21
<> 144:ef7eb2e8f9f7 22 static void *heap_pointer = NULL;
<> 144:ef7eb2e8f9f7 23
<> 144:ef7eb2e8f9f7 24 void __cs3_start_c(void) {
<> 144:ef7eb2e8f9f7 25 static SCS3Regions* pCS3Regions = (SCS3Regions*)&__cs3_regions;
<> 144:ef7eb2e8f9f7 26 unsigned long* pulDest;
<> 144:ef7eb2e8f9f7 27 unsigned long* pulSrc;
<> 144:ef7eb2e8f9f7 28 unsigned long ByteCount;
<> 144:ef7eb2e8f9f7 29 unsigned long i;
<> 144:ef7eb2e8f9f7 30
<> 144:ef7eb2e8f9f7 31 pulSrc = pCS3Regions->InitRam;
<> 144:ef7eb2e8f9f7 32 pulDest = pCS3Regions->StartRam;
<> 144:ef7eb2e8f9f7 33 ByteCount = pCS3Regions->InitSizeRam;
<> 144:ef7eb2e8f9f7 34 if (pulSrc != pulDest) {
<> 144:ef7eb2e8f9f7 35 for(i = 0 ; i < ByteCount ; i += sizeof(unsigned long)) {
<> 144:ef7eb2e8f9f7 36 *(pulDest++) = *(pulSrc++);
<> 144:ef7eb2e8f9f7 37 }
<> 144:ef7eb2e8f9f7 38 } else {
<> 144:ef7eb2e8f9f7 39 pulDest = (unsigned long*)(void*)((char*)pulDest + ByteCount);
<> 144:ef7eb2e8f9f7 40 }
<> 144:ef7eb2e8f9f7 41
<> 144:ef7eb2e8f9f7 42 ByteCount = pCS3Regions->ZeroSizeRam;
<> 144:ef7eb2e8f9f7 43 for(i = 0 ; i < ByteCount ; i += sizeof(unsigned long)) {
<> 144:ef7eb2e8f9f7 44 *(pulDest++) = 0;
<> 144:ef7eb2e8f9f7 45 }
<> 144:ef7eb2e8f9f7 46
<> 144:ef7eb2e8f9f7 47 heap_pointer = &__cs3_heap_start;
<> 144:ef7eb2e8f9f7 48 __libc_init_array();
<> 144:ef7eb2e8f9f7 49 exit(main());
<> 144:ef7eb2e8f9f7 50 }
<> 144:ef7eb2e8f9f7 51
<> 144:ef7eb2e8f9f7 52 int _kill(int pid, int sig) {
<> 144:ef7eb2e8f9f7 53 errno = EINVAL;
<> 144:ef7eb2e8f9f7 54 return -1;
<> 144:ef7eb2e8f9f7 55 }
<> 144:ef7eb2e8f9f7 56
<> 144:ef7eb2e8f9f7 57 void _exit(int status) {
<> 144:ef7eb2e8f9f7 58 exit(status);
<> 144:ef7eb2e8f9f7 59 }
<> 144:ef7eb2e8f9f7 60
<> 144:ef7eb2e8f9f7 61 int _getpid(void) {
<> 144:ef7eb2e8f9f7 62 return 1;
<> 144:ef7eb2e8f9f7 63 }
<> 144:ef7eb2e8f9f7 64
<> 144:ef7eb2e8f9f7 65 void *_sbrk(unsigned int incr) {
<> 144:ef7eb2e8f9f7 66 void *mem;
<> 144:ef7eb2e8f9f7 67
<> 144:ef7eb2e8f9f7 68 unsigned int next = ((((unsigned int)heap_pointer + incr) + 7) & ~7);
<> 144:ef7eb2e8f9f7 69 if (next > __get_MSP()) {
<> 144:ef7eb2e8f9f7 70 mem = NULL;
<> 144:ef7eb2e8f9f7 71 } else {
<> 144:ef7eb2e8f9f7 72 mem = (void *)heap_pointer;
<> 144:ef7eb2e8f9f7 73 }
<> 144:ef7eb2e8f9f7 74 heap_pointer = (void *)next;
<> 144:ef7eb2e8f9f7 75
<> 144:ef7eb2e8f9f7 76 return mem;
<> 144:ef7eb2e8f9f7 77 }
<> 144:ef7eb2e8f9f7 78
<> 144:ef7eb2e8f9f7 79 }