SDK Development / mbed-src

mbed SDK library sources

Fork of mbed-src by mbed official

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_NXP/TARGET_LPC11XX_11CXX/TOOLCHAIN_GCC_CS/sys.cpp@30:91c1d09ada54, 2013-09-25 (annotated)

Committer:
mbed_official
Date:
Wed Sep 25 10:30:04 2013 +0100
Revision:
30:91c1d09ada54
Synchronized with git revision 8f57c1e84759991fa81ede0da2b4aabe8530fa09

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 30:91c1d09ada54 1 #include "cmsis.h"
mbed_official 30:91c1d09ada54 2 #include <sys/types.h>
mbed_official 30:91c1d09ada54 3 #include <errno.h>
mbed_official 30:91c1d09ada54 4
mbed_official 30:91c1d09ada54 5 extern "C" {
mbed_official 30:91c1d09ada54 6
mbed_official 30:91c1d09ada54 7 struct SCS3Regions {
mbed_official 30:91c1d09ada54 8 unsigned long Dummy;
mbed_official 30:91c1d09ada54 9 unsigned long* InitRam;
mbed_official 30:91c1d09ada54 10 unsigned long* StartRam;
mbed_official 30:91c1d09ada54 11 unsigned long InitSizeRam;
mbed_official 30:91c1d09ada54 12 unsigned long ZeroSizeRam;
mbed_official 30:91c1d09ada54 13 };
mbed_official 30:91c1d09ada54 14
mbed_official 30:91c1d09ada54 15 extern unsigned long __cs3_regions;
mbed_official 30:91c1d09ada54 16 extern unsigned long __cs3_heap_start;
mbed_official 30:91c1d09ada54 17
mbed_official 30:91c1d09ada54 18 int main(void);
mbed_official 30:91c1d09ada54 19 void __libc_init_array(void);
mbed_official 30:91c1d09ada54 20 void exit(int ErrorCode);
mbed_official 30:91c1d09ada54 21
mbed_official 30:91c1d09ada54 22 static void *heap_pointer = NULL;
mbed_official 30:91c1d09ada54 23
mbed_official 30:91c1d09ada54 24 void __cs3_start_c(void) {
mbed_official 30:91c1d09ada54 25 static SCS3Regions* pCS3Regions = (SCS3Regions*)&__cs3_regions;
mbed_official 30:91c1d09ada54 26 unsigned long* pulDest;
mbed_official 30:91c1d09ada54 27 unsigned long* pulSrc;
mbed_official 30:91c1d09ada54 28 unsigned long ByteCount;
mbed_official 30:91c1d09ada54 29 unsigned long i;
mbed_official 30:91c1d09ada54 30
mbed_official 30:91c1d09ada54 31 pulSrc = pCS3Regions->InitRam;
mbed_official 30:91c1d09ada54 32 pulDest = pCS3Regions->StartRam;
mbed_official 30:91c1d09ada54 33 ByteCount = pCS3Regions->InitSizeRam;
mbed_official 30:91c1d09ada54 34 if (pulSrc != pulDest) {
mbed_official 30:91c1d09ada54 35 for(i = 0 ; i < ByteCount ; i += sizeof(unsigned long)) {
mbed_official 30:91c1d09ada54 36 *(pulDest++) = *(pulSrc++);
mbed_official 30:91c1d09ada54 37 }
mbed_official 30:91c1d09ada54 38 } else {
mbed_official 30:91c1d09ada54 39 pulDest = (unsigned long*)(void*)((char*)pulDest + ByteCount);
mbed_official 30:91c1d09ada54 40 }
mbed_official 30:91c1d09ada54 41
mbed_official 30:91c1d09ada54 42 ByteCount = pCS3Regions->ZeroSizeRam;
mbed_official 30:91c1d09ada54 43 for(i = 0 ; i < ByteCount ; i += sizeof(unsigned long)) {
mbed_official 30:91c1d09ada54 44 *(pulDest++) = 0;
mbed_official 30:91c1d09ada54 45 }
mbed_official 30:91c1d09ada54 46
mbed_official 30:91c1d09ada54 47 heap_pointer = &__cs3_heap_start;
mbed_official 30:91c1d09ada54 48 __libc_init_array();
mbed_official 30:91c1d09ada54 49 exit(main());
mbed_official 30:91c1d09ada54 50 }
mbed_official 30:91c1d09ada54 51
mbed_official 30:91c1d09ada54 52 int _kill(int pid, int sig) {
mbed_official 30:91c1d09ada54 53 errno = EINVAL;
mbed_official 30:91c1d09ada54 54 return -1;
mbed_official 30:91c1d09ada54 55 }
mbed_official 30:91c1d09ada54 56
mbed_official 30:91c1d09ada54 57 void _exit(int status) {
mbed_official 30:91c1d09ada54 58 exit(status);
mbed_official 30:91c1d09ada54 59 }
mbed_official 30:91c1d09ada54 60
mbed_official 30:91c1d09ada54 61 int _getpid(void) {
mbed_official 30:91c1d09ada54 62 return 1;
mbed_official 30:91c1d09ada54 63 }
mbed_official 30:91c1d09ada54 64
mbed_official 30:91c1d09ada54 65 void *_sbrk(unsigned int incr) {
mbed_official 30:91c1d09ada54 66 void *mem;
mbed_official 30:91c1d09ada54 67
mbed_official 30:91c1d09ada54 68 unsigned int next = ((((unsigned int)heap_pointer + incr) + 7) & ~7);
mbed_official 30:91c1d09ada54 69 if (next > __get_MSP()) {
mbed_official 30:91c1d09ada54 70 mem = NULL;
mbed_official 30:91c1d09ada54 71 } else {
mbed_official 30:91c1d09ada54 72 mem = (void *)heap_pointer;
mbed_official 30:91c1d09ada54 73 }
mbed_official 30:91c1d09ada54 74 heap_pointer = (void *)next;
mbed_official 30:91c1d09ada54 75
mbed_official 30:91c1d09ada54 76 return mem;
mbed_official 30:91c1d09ada54 77 }
mbed_official 30:91c1d09ada54 78
mbed_official 30:91c1d09ada54 79 }