ATNEL tech-forum 2016-12-16T23:12:08+01:00 https://forum.atnel.pl/feed.php?f=50&t=16973&mode 2016-12-16T23:12:08+01:00 2016-12-16T23:12:08+01:00 https://forum.atnel.pl/viewtopic.php?t=16973&p=177702#p177702 <![CDATA[Re: Atmel toolchain - multiple definition of `__ltsf2']]> Wstring.h includuje string.h

Statystyki: Napisane przez wrzaskun — 16 gru 2016, o 23:12

]]> 2016-12-03T21:21:14+01:00 2016-12-03T21:21:14+01:00 https://forum.atnel.pl/viewtopic.php?t=16973&p=176401#p176401 <![CDATA[Atmel toolchain - multiple definition of `__ltsf2']]> Bawię się C++ w Eclipsie + Atmel toolchain i natrafiłem na pewien problem gdy chciałem użyć liczb zmiennoprzecinkowych mając podpiętą bibliotekę z arduino WString

Code:
avr-g++ -Wl,-Map,Encoder.map,--cref -mrelax -Wl,--gc-sections -lc -lm -lc -mmcu=atmega644p -o "Encoder.elf"  ./LCD_HD44780/Print.o ./LCD_HD44780/WString.o ./LCD_HD44780/lcd_hd44780.o  ./main.o   
c:/program files (x86)/atmel/avr tools/avr toolchain/bin/../lib/gcc/avr/4.7.2/../../../../avr/lib/avr5\libc.a(cmpsf2.o):/data2/home/toolsbuild/jenkins-knuth/workspace/avr8-gnu-toolchain/src/avr-libc/libm/fplib/cmpsf2.S:58: multiple definition of `__ltsf2'
c:/program files (x86)/atmel/avr tools/avr toolchain/bin/../lib/gcc/avr/4.7.2/avr5\libgcc.a(_lt_sf.o):/data2/home/toolsbuild/jenkins-knuth/workspace/avr8-gnu-toolchain/src/gcc/libgcc/fp-bit.c:1269: first defined here
c:/program files (x86)/atmel/avr tools/avr toolchain/bin/../lib/gcc/avr/4.7.2/../../../../avr/bin/ld.exe: Disabling relaxation: it will not work with multiple definitions
c:/program files (x86)/atmel/avr tools/avr toolchain/bin/../lib/gcc/avr/4.7.2/../../../../avr/lib/avr5\libc.a(cmpsf2.o):/data2/home/toolsbuild/jenkins-knuth/workspace/avr8-gnu-toolchain/src/avr-libc/libm/fplib/cmpsf2.S:58: multiple definition of `__lesf2'
c:/program files (x86)/atmel/avr tools/avr toolchain/bin/../lib/gcc/avr/4.7.2/avr5\libgcc.a(_le_sf.o):/data2/home/toolsbuild/jenkins-knuth/workspace/avr8-gnu-toolchain/src/gcc/libgcc/fp-bit.c:1290: first defined here
collect2.exe: error: ld returned 1 exit status
make: *** [Encoder.elf] Błąd 1


struktura projektu jak widać jest prosta
Obrazek

Plik main
[syntax=cpp]#include <avr/io.h>
#include <util/delay.h>
#include <avr/interrupt.h>
#include "LCD_HD44780/lcd_hd44780.h"

int main(void)
{
HD44780 lcd;

lcd.init();
lcd.print(-7.4);
lcd.led(true);

while(1);
}[/syntax]

Klasa Print zredukowana:
[syntax=cpp]#ifndef Print_h
#define Print_h

//#include <inttypes.h>
#include <stdio.h> // for size_t
//
#include "WString.h"
//#include "Printable.h"
#include <string.h>

#define DEC 10
#define HEX 16
#define OCT 8
#define BIN 2

class Print
{
private:
int write_error;
size_t printNumber(unsigned long, uint8_t);
size_t printFloat(double, uint8_t);
protected:
void setWriteError(int err = 1) { write_error = err; }
public:
Print() : write_error(0) {}

int getWriteError() { return write_error; }
void clearWriteError() { setWriteError(0); }

virtual size_t write(uint8_t) = 0;
size_t write(const char *str) {
if (str == NULL) return 0;
return write((const uint8_t *)str, strlen(str));
}
virtual size_t write(const uint8_t *buffer, size_t size);
size_t write(const char *buffer, size_t size) {
return write((const uint8_t *)buffer, size);
}

// size_t print(const __FlashStringHelper *);
//size_t print(const String &);
size_t print(const char[]);
size_t print(char);
size_t print(unsigned char, int = DEC);
size_t print(int, int = DEC);
size_t print(unsigned int, int = DEC);
size_t print(long, int = DEC);
size_t print(unsigned long, int = DEC);
size_t print(double, int = 2);
// size_t print(const Printable&);
//
// size_t println(const __FlashStringHelper *);
// size_t println(const String &s);
// size_t println(const char[]);
// size_t println(char);
// size_t println(unsigned char, int = DEC);
// size_t println(int, int = DEC);
// size_t println(unsigned int, int = DEC);
// size_t println(long, int = DEC);
// size_t println(unsigned long, int = DEC);
// size_t println(double, int = 2);
// size_t println(const Printable&);
// size_t println(void);
};

#endif[/syntax]

kompilator nie rzuca błędem, gdy wywalę
#include "WString.h"
i wykluczę z projektu. Nie jestem w stanie sobie z tym poradzić, próbowałem do linkera dodać -l libm, jednak dostaje info, że nie odnaleziono.
Może ktoś z was już walczył z tym wcześniej?

Statystyki: Napisane przez savian86 — 3 gru 2016, o 21:21

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