mbed library sources
Dependents: STM32F103C8T6-RangoTec STM32-103C8_Plantilla_USB
common/RawSerial.cpp@299:fb529cc9bc22, 2014-08-27 (annotated)
- Committer:
- mbed_official
- Date:
- Wed Aug 27 04:00:07 2014 +0100
- Revision:
- 299:fb529cc9bc22
- Parent:
- 64:7b352733b00a
- Child:
- 322:39f2bc1d0627
Synchronized with git revision d20ce634877d7038c1c2a25adb030fd56c156e33
Full URL: https://github.com/mbedmicro/mbed/commit/d20ce634877d7038c1c2a25adb030fd56c156e33/
[Common] Fixed crash issue in RawSerial::printf for uARM
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 36:ab3ee77451e7 | 1 | /* mbed Microcontroller Library |
mbed_official | 36:ab3ee77451e7 | 2 | * Copyright (c) 2006-2013 ARM Limited |
mbed_official | 36:ab3ee77451e7 | 3 | * |
mbed_official | 36:ab3ee77451e7 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
mbed_official | 36:ab3ee77451e7 | 5 | * you may not use this file except in compliance with the License. |
mbed_official | 36:ab3ee77451e7 | 6 | * You may obtain a copy of the License at |
mbed_official | 36:ab3ee77451e7 | 7 | * |
mbed_official | 36:ab3ee77451e7 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
mbed_official | 36:ab3ee77451e7 | 9 | * |
mbed_official | 36:ab3ee77451e7 | 10 | * Unless required by applicable law or agreed to in writing, software |
mbed_official | 36:ab3ee77451e7 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
mbed_official | 36:ab3ee77451e7 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
mbed_official | 36:ab3ee77451e7 | 13 | * See the License for the specific language governing permissions and |
mbed_official | 36:ab3ee77451e7 | 14 | * limitations under the License. |
mbed_official | 36:ab3ee77451e7 | 15 | */ |
mbed_official | 36:ab3ee77451e7 | 16 | #include "RawSerial.h" |
mbed_official | 36:ab3ee77451e7 | 17 | #include "wait_api.h" |
mbed_official | 64:7b352733b00a | 18 | #include <cstdarg> |
mbed_official | 36:ab3ee77451e7 | 19 | |
mbed_official | 36:ab3ee77451e7 | 20 | #if DEVICE_SERIAL |
mbed_official | 36:ab3ee77451e7 | 21 | |
mbed_official | 64:7b352733b00a | 22 | #define STRING_STACK_LIMIT 120 |
mbed_official | 64:7b352733b00a | 23 | |
mbed_official | 36:ab3ee77451e7 | 24 | namespace mbed { |
mbed_official | 36:ab3ee77451e7 | 25 | |
mbed_official | 36:ab3ee77451e7 | 26 | RawSerial::RawSerial(PinName tx, PinName rx) : SerialBase(tx, rx) { |
mbed_official | 36:ab3ee77451e7 | 27 | } |
mbed_official | 36:ab3ee77451e7 | 28 | |
mbed_official | 36:ab3ee77451e7 | 29 | int RawSerial::getc() { |
mbed_official | 36:ab3ee77451e7 | 30 | return _base_getc(); |
mbed_official | 36:ab3ee77451e7 | 31 | } |
mbed_official | 36:ab3ee77451e7 | 32 | |
mbed_official | 36:ab3ee77451e7 | 33 | int RawSerial::putc(int c) { |
mbed_official | 36:ab3ee77451e7 | 34 | return _base_putc(c); |
mbed_official | 36:ab3ee77451e7 | 35 | } |
mbed_official | 36:ab3ee77451e7 | 36 | |
mbed_official | 64:7b352733b00a | 37 | int RawSerial::puts(const char *str) { |
mbed_official | 64:7b352733b00a | 38 | while (*str) |
mbed_official | 64:7b352733b00a | 39 | putc(*str ++); |
mbed_official | 64:7b352733b00a | 40 | return 0; |
mbed_official | 64:7b352733b00a | 41 | } |
mbed_official | 64:7b352733b00a | 42 | |
mbed_official | 64:7b352733b00a | 43 | // Experimental support for printf in RawSerial. No Stream inheritance |
mbed_official | 64:7b352733b00a | 44 | // means we can't call printf() directly, so we use sprintf() instead. |
mbed_official | 64:7b352733b00a | 45 | // We only call malloc() for the sprintf() buffer if the buffer |
mbed_official | 64:7b352733b00a | 46 | // length is above a certain threshold, otherwise we use just the stack. |
mbed_official | 64:7b352733b00a | 47 | int RawSerial::printf(const char *format, ...) { |
mbed_official | 64:7b352733b00a | 48 | std::va_list arg; |
mbed_official | 64:7b352733b00a | 49 | va_start(arg, format); |
mbed_official | 299:fb529cc9bc22 | 50 | #if defined(__MICROLIB) && defined(__ARMCC_VERSION) // with microlib and ARM compiler |
mbed_official | 299:fb529cc9bc22 | 51 | char *temp; |
mbed_official | 299:fb529cc9bc22 | 52 | temp = (char*)alloca(STRING_STACK_LIMIT); |
mbed_official | 299:fb529cc9bc22 | 53 | vsprintf(temp, format, arg); |
mbed_official | 299:fb529cc9bc22 | 54 | puts(temp); |
mbed_official | 299:fb529cc9bc22 | 55 | int len = strlen(temp); |
mbed_official | 299:fb529cc9bc22 | 56 | #else |
mbed_official | 64:7b352733b00a | 57 | int len = vsnprintf(NULL, 0, format, arg); |
mbed_official | 64:7b352733b00a | 58 | if (len < STRING_STACK_LIMIT) { |
mbed_official | 64:7b352733b00a | 59 | char temp[STRING_STACK_LIMIT]; |
mbed_official | 64:7b352733b00a | 60 | vsprintf(temp, format, arg); |
mbed_official | 64:7b352733b00a | 61 | puts(temp); |
mbed_official | 64:7b352733b00a | 62 | } else { |
mbed_official | 64:7b352733b00a | 63 | char *temp = new char[len + 1]; |
mbed_official | 64:7b352733b00a | 64 | vsprintf(temp, format, arg); |
mbed_official | 64:7b352733b00a | 65 | puts(temp); |
mbed_official | 64:7b352733b00a | 66 | delete[] temp; |
mbed_official | 64:7b352733b00a | 67 | } |
mbed_official | 299:fb529cc9bc22 | 68 | #endif |
mbed_official | 64:7b352733b00a | 69 | va_end(arg); |
mbed_official | 64:7b352733b00a | 70 | return len; |
mbed_official | 64:7b352733b00a | 71 | } |
mbed_official | 64:7b352733b00a | 72 | |
mbed_official | 36:ab3ee77451e7 | 73 | } // namespace mbed |
mbed_official | 36:ab3ee77451e7 | 74 | |
mbed_official | 36:ab3ee77451e7 | 75 | #endif |