Problem with gcc build - #including files

31 New Member

I have the following files:

netfunc.h:

Expand|Select|Wrap|Line Numbers

 typedef struct{

     char data[MAX];

     int n;

}packet;
 
typedef struct

{

     char flag_s;

     char address;

     unsigned char control;

     char data[MAX];

     unsigned char FCS1;

     unsigned char FCS2;

     char flag_e;

}frame;
 
typedef struct{

    frame trama;

    packet paquete;

    FILE* file;

    int tty;

}arguments;
 
void to_physical_layer(frame *fr, int fds);

void from_physical_layer(frame *fr, int fde);

void print_frame(frame trama);

void format_frame(frame *fs, packet ps,int control);

void format_packet(frame fs, packet *ps);

void to_network_layer (packet pr, FILE *pfs);

TX_automat_SW.h

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 /* ----------------------------------------------------------- *

 * Author: Luis Sieira García <email removed>

 * Date: May 2007

 * No rights reserved

 * ----------------------------------------------------------- */

#include <IFTI_P2_automat.h>
 
#define    REACHED_EOF        3
 
/* ------------------------------------------------------------ 

 * State definitions

 * ------------------------------------------------------------ */

enum {

    TX_STATE_INITIAL = AUTOMAT_INITIAL_STATE,

    TX_STATE_READING,

    TX_STATE_FRAMING,

    TX_STATE_WAITING

};
 
/* ------------------------------------------------------------ 

 * Event definitions

 * ------------------------------------------------------------ */

enum {

    TX_EV_OPERATIVE = 1,

    TX_EV_READOK,

    TX_EV_FRAMED,

    TX_EV_TWOFRAMES,

    TX_EV_ACK_RECEIVED,

};
 
/* ------------------------------------------------------------ 

 * Action definitions

 * ------------------------------------------------------------ */

TAutomat * TX_automat_SW_define( );
 
int read_data(    TEntity * inEntity,

            TState inFromState,

            TEvent inEvent,

            TEventArgs * inArgs );
 
int manage_data(    TEntity * inEntity,

            TState inFromState,

            TEvent inEvent,

            TEventArgs * inArgs );
 
int send_data_wait_response(    TEntity * inEntity,

            TState inFromState,

            TEvent inEvent,

            TEventArgs * inArgs );

TX_SW

Manage the automat transitions, so it includes "TX_automat_SW. h".

It needs to use some functions from netfunc.h

If I don't include netfunc.h I get

[...]
src/TX_SW.c: In function ‘main’:
src/TX_SW.c:25: error: ‘arguments’ undeclared (first use in this function)
[...]

if I include both

#include <TX_automat_SW. h>
#include <netfunc.h>

then functions are not defined in TX_automat_SW

[...]
./src/TX_automat_SW.o : In function `manage_data':
src/TX_automat_SW.c :80: referencia a `format_frame' sin definir
[...]

As I think, solution is related with #ifndef #ifdef and #endif directives, but I've never used it... and I don't know how to do it...

May 31 '07 #1

Subscribe Reply

1773

RedSon

5,000

Recognized Expert Expert

TX_SW

Manage the automat transitions, so it includes "TX_automat_SW. h".

It needs to use some functions from netfunc.h

If I don't include netfunc.h I get

[...]
src/TX_SW.c: In function ‘main’:
src/TX_SW.c:25: error: ‘arguments’ undeclared (first use in this function)
[...]

if I include both

#include <TX_automat_SW. h>
#include <netfunc.h>

then functions are not defined in TX_automat_SW

[...]
./src/TX_automat_SW.o : In function `manage_data':
src/TX_automat_SW.c :80: referencia a `format_frame' sin definir
[...]

As I think, solution is related with #ifndef #ifdef and #endif directives, but I've never used it... and I don't know how to do it...

First off anything you include that is not part of the standard or platform SDK should be included with double quotes #include "netfunc.h" . Either your compiler will just ignore the difference between <> and "" or it will look in a different path.

So it looks like in your TX_automat_SW.c you are referencing something called "format_fra me" that is not visitable to TX_automat_SW. It doesnt have anything to do with the #ifdef #endif statements. You are missing a #include in either TX_automat_SW.c or TX_automat_SW.h .

¿entiendes?

May 31 '07 #2

Sieira

New Member

First off anything you include that is not part of the standard or platform SDK should be included with double quotes #include "netfunc.h" . Either your compiler will just ignore the difference between <> and "" or it will look in a different path.

So it looks like in your TX_automat_SW.c you are referencing something called "format_fra me" that is not visitable to TX_automat_SW. It doesnt have anything to do with the #ifdef #endif statements. You are missing a #include in either TX_automat_SW.c or TX_automat_SW.h .

¿entiendes?

Entiendo (o eso creo), gracias... But I couldn't solve my problem

I've replaced <> with "" around my .h files.

TX_automat_SW.c includes this:

Expand|Select|Wrap|Line Numbers

 
     #include "TX_automat_SW.h"

     #include "netfunc.h"
 
     #include <unistd.h>

     #include <stdio.h>

     #include <stdlib.h>

     #include <string.h>

When I run my make.

Expand|Select|Wrap|Line Numbers

 
sieira@GATTACA:/DOCS/Mis documentos/Estudios pendientes/Teleinformatica/LABORATORIO/Practica II/Programas$ make

gcc -g -c -Wall -I ./include src/IFTI_P2_automat.c -o src/IFTI_P2_automat.o

gcc -g -c -Wall -I ./include src/TX_automat_SW.c -o src/TX_automat_SW.o

gcc -g -c -Wall -I ./include src/TX_SW.c -o src/TX_SW.o

src/TX_SW.c: In function ‘main’:

src/TX_SW.c:26: error: ‘arguments’ undeclared (first use in this function)

src/TX_SW.c:26: error: (Each undeclared identifier is reported only once

src/TX_SW.c:26: error: for each function it appears in.)

src/TX_SW.c:26: error: expected ‘;’ before ‘args’

src/TX_SW.c:31: error: ‘frame’ undeclared (first use in this function)

src/TX_SW.c:31: error: expected ‘;’ before ‘inFrame’

src/TX_SW.c:32: error: ‘packet’ undeclared (first use in this function)

src/TX_SW.c:32: error: expected ‘;’ before ‘inPacket’

src/TX_SW.c:41: error: ‘MAX’ undeclared (first use in this function)

src/TX_SW.c:41: error: ‘args’ undeclared (first use in this function)

src/TX_SW.c:88: warning: implicit declaration of function ‘print_frame’

src/TX_SW.c:92: warning: implicit declaration of function ‘from_physical_layer’

src/TX_SW.c:92: error: ‘inFrame’ undeclared (first use in this function)

src/TX_SW.c:93: error: ‘CONTROL’ undeclared (first use in this function)

src/TX_SW.c:94: error: ‘ACK’ undeclared (first use in this function)

src/TX_SW.c:96: warning: implicit declaration of function ‘format_packet’

src/TX_SW.c:96: error: ‘inPacket’ undeclared (first use in this function)

make: *** [src/TX_SW.o] Error 1

(as you can see "gcc -g -c -Wall -I ./include src/TX_automat_SW.c -o src/TX_automat_SW.o " returns no errors)

Every error and warning refers to types and functions contained in "netfunc.h" , and called from TX_SW.c so i include it. Since this header is included in both (TX_automat_SW. c and TX_SW.c) files. What I get is this:

Expand|Select|Wrap|Line Numbers

 
sieira@GATTACA:/DOCS/Mis documentos/Estudios pendientes/Teleinformatica/LABORATORIO/Practica II/Programas$ make

gcc -g -c -Wall -I ./include src/IFTI_P2_automat.c -o src/IFTI_P2_automat.o

gcc -g -c -Wall -I ./include src/TX_automat_SW.c -o src/TX_automat_SW.o

gcc -g -c -Wall -I ./include src/TX_SW.c -o src/TX_SW.o

gcc  ./src/IFTI_P2_automat.o ./src/TX_automat_SW.o ./src/TX_SW.o -o bin/TX_SW

./src/TX_automat_SW.o: In function `manage_data':

src/TX_automat_SW.c:81: referencia a `format_frame' sin definir

./src/TX_automat_SW.o: In function `send_data_wait_response':

src/TX_automat_SW.c:95: referencia a `to_physical_layer' sin definir

./src/TX_SW.o: In function `main':

src/TX_SW.c:89: referencia a `print_frame' sin definir

src/TX_SW.c:93: referencia a `from_physical_layer' sin definir

src/TX_SW.c:96: referencia a `print_frame' sin definir

src/TX_SW.c:97: referencia a `format_packet' sin definir

src/TX_SW.c:110: referencia a `print_frame' sin definir

src/TX_SW.c:114: referencia a `from_physical_layer' sin definir

src/TX_SW.c:117: referencia a `print_frame' sin definir

src/TX_SW.c:118: referencia a `format_packet' sin definir

collect2: ld returned 1 exit status

make: *** [bin/TX_SW] Error 1

Now types get defined, and no error related is shown...but netfunc.h functions become undefined in both files...

I'm getting crazy...

May 31 '07 #3

weaknessforcats

9,208

Recognized Expert Moderator Expert

I would be going crazy too. I took your code and compiled it with Visual Studio.NET and got no errors.

I has to add this:

Expand|Select|Wrap|Line Numbers

 
#define MAX 100

#define AUTOMAT_INITIAL_STATE  100

class TAutomat

{
 
};

class TEntity

{
 
};

class TState

{
 
};

class TEvent

{
 
};

class TEventArgs

{
 
};

just before the netfunc.h. I just made up values to see if it would compile.

My code looks like:

Expand|Select|Wrap|Line Numbers

 
#define MAX 100

#define AUTOMAT_INITIAL_STATE  100

class TAutomat

{
 
};

class TEntity

{
 
};

class TState

{
 
};

class TEvent

{
 
};

class TEventArgs

{
 
};

        ///////////////////////////////////////////

        //netfunc.h

        typedef struct{

     char data[MAX];

     int n;

}packet;
 
typedef struct

{

     char flag_s;

     char address;

     unsigned char control;

     char data[MAX];

     unsigned char FCS1;

     unsigned char FCS2;

     char flag_e;

}frame;
 
typedef struct{

    frame trama;

    packet paquete;

    FILE* file;

    int tty;

}arguments;
 
void to_physical_layer(frame *fr, int fds);

void from_physical_layer(frame *fr, int fde);

void print_frame(frame trama);

void format_frame(frame *fs, packet ps,int control);

void format_packet(frame fs, packet *ps);

void to_network_layer (packet pr, FILE *pfs);
 
///////////////////////////////

int main()

{
 
        ///////////////////////////////////////////

/* ----------------------------------------------------------- *

* Author: Luis Sieira García <email removed>

* Date: May 2007

* No rights reserved

* ----------------------------------------------------------- */

//#include <IFTI_P2_automat.h>
 
#define REACHED_EOF    3
 
/* ------------------------------------------------------------ 

* State definitions

* ------------------------------------------------------------ */

enum {

    TX_STATE_INITIAL = AUTOMAT_INITIAL_STATE,

    TX_STATE_READING,

    TX_STATE_FRAMING,

    TX_STATE_WAITING

};
 
/* ------------------------------------------------------------ 

* Event definitions

* ------------------------------------------------------------ */

enum {

    TX_EV_OPERATIVE = 1,

    TX_EV_READOK,

    TX_EV_FRAMED,

    TX_EV_TWOFRAMES,

    TX_EV_ACK_RECEIVED,

};
 
/* ------------------------------------------------------------ 

* Action definitions

* ------------------------------------------------------------ */

TAutomat * TX_automat_SW_define( );
 
int read_data(  TEntity * inEntity,

            TState inFromState,

            TEvent inEvent,

            TEventArgs * inArgs );
 
int manage_data(    TEntity * inEntity,

            TState inFromState,

            TEvent inEvent,

            TEventArgs * inArgs );
 
int send_data_wait_response(    TEntity * inEntity,

            TState inFromState,

            TEvent inEvent,

            TEventArgs * inArgs );
 
        /////////////////////////////////////////////////
 
}

May 31 '07 #4

Sieira

New Member

Thank you, I was not getting crazy. I was stupid...

I wondered "why didn't compile for me if the code has no errors?"

Obviously the problem was in my Makefile

Expand|Select|Wrap|Line Numbers

 
CC=gcc

CXX=gcc

INCLUDES=-I ./include

CFLAGS=-g -c -Wall

LDFLAGS=

SOURCES=./src/IFTI_P2_automat.c ./src/TX_automat_SW.c ./src/TX_SW.c

OBJECTS=$(SOURCES:.c=.o)

EXECUTABLE1=./bin/TX_SW

EXECUTABLE2=./bin/RX_SW
 
all: $(SOURCES) $(EXECUTABLE1) $(EXECUTABLE2)
 
$(EXECUTABLE1): $(OBJECTS) 

    $(CC) $(LDFLAGS) $(OBJECTS) -o $@
 
$(EXECUTABLE2): $(OBJECTS) 

    $(CC) $(LDFLAGS) $(OBJECTS) -o $@
 
.c.o:

    $(CC) $(CFLAGS) $(INCLUDES) $< -o $@
 
clean:

    \rm -rf $(OBJECTS) $(EXECUTABLE1) $(EXECUTABLE2)

I forgot to add ./src/netfunc.c in the SOURCES tag!!!

I don't use to write Makefiles this way... so I didn't see it.

Thousands of thanks

May 31 '07 #5

weaknessforcats

9,208

Recognized Expert Moderator Expert

You gotta trade that thing in for an IDE that does the makefiles for you.

May 31 '07 #6

Banfa

9,065

Recognized Expert Moderator Expert

You gotta trade that thing in for an IDE that does the makefiles for you.

You know that sometimes you just don't get a choice, particularly if you want to do management of multi-platform code.

Most platforms compilers do not come with an IDE.

May 31 '07 #7

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