Programming :: Error: Function Undeclared / But It Is Declared?
Apr 20, 2010
I'm learning how to program kernel drivers, and I'm making a hello world module for that. But I can't find the cause of some errors... My module as three files:
test_regulator.c: Code: /*test_regulator.c
2 */
3 #include <linux/test_regulator.h>
4 #include <linux/module.h>
5 #include <linux/kernel.h>
6 #include <linux/regulator/driver.h>
code....
I don't understand, because I had declared the test_regulator_driver.
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May 19, 2010
I hope to get your suggestions to solve my problem. I install Ubuntu8.10 in my notebook last week.I should install drcom-1.4.7 to get through to the internet,while i tried many times but failed like this:
make[1]: Leaving directory `/home/lf/drcom-1.4.7/drcomd'
make[1]: Entering directory `/home/lf/drcom-1.4.7/kmod'
make -C /lib/modules/2.6.27-7-generic/build M=/home/lf/drcom-1.4.7/kmod modules
make[2]: Entering directory `/usr/src/linux-headers-2.6.27-7-generic'
[code]....
kernel cannot support the drcom version.so i tried to install drcom-1.4.4,but problem also occured:
readconf.c: In function __parseopt:
readconf.c:489: error: LONG_MIN undeclared (first use in this function)
readconf.c:489: error: (Each undeclared identifier is reported only once
readconf.c:489: error: for each function it appears in.)
[code]...
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May 29, 2011
I've trouble compiling libeio on my openSUSE 11.4 x86_64:
[Code]...
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Jul 8, 2010
i have to find time in nanosecond of a particular process and for that i am using clock_gettime() function.i tried different codes i got from net but getting same error Quote:error: �CLOCK_PROCESS_CPUTIME_ID� undeclared (first use in this function)i have included relavent header file of time also. and complied the whole code that i got from net. that was working fine and giving output. but when i use some of the relavent code that i need it gives me this error. plz tell me am i missing something aur using the code in a wrong way?heres my code!
Code:
#include <stdlib.h>
#include <sys/sysinfo.h>
[code]....
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Feb 26, 2010
Well, either it's bizarre or I'm going crazy. Here is a student's very simple linked-list implementation.
The problem is simply that when the list class is named "link", g++ complains:
Code:
testlink.cc: In function int main():
testlink.cc:5: error: expected `;' before l
code....
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Jun 9, 2010
i have written file transfer program using libcurl.
#include <stdio.h>
#include <curl/curl.h>
#include <curl/types.h>
[code]....
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Jan 10, 2010
I have a program with a variable named current, but it is not declared. The syntax is current -> othervariable. Theoreticaly there should be no problem with this program. Just wondering what woudl cause this? Which linux include file is current supposed to be declared in?
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Aug 29, 2010
i m doing a program to open a file, however, there is error saying that 'File' undeclared. but I thought File is a type like int or char, isnt it? below is my codes:
Code:
#include "mpi.h"
#include <stdio.h>
#include <math.h>
[code]...
i have been make the statement with error in red color.
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Nov 18, 2010
I tried to load a simple driver program. I am using RHEL5. When I tried to compile my 'driver.c' program it shows the following error:
[root@jameslee ~]# gcc -c device.c
device.c:1:25: error: linux/module.h: No such file or directory
device.c: In function 'init_module':
device.c:6: error: 'KERN_INFO' undeclared (first use in this function)
device.c:6: error: (Each undeclared identifier is reported only once
device.c:6: error: for each function it appears in.)
device.c:6: error: expected ')' before string constant
device.c: In function 'cleanup_module':
device.c:12: error: 'KERN_INFO' undeclared (first use in this function)
device.c:12: error: expected ')' before string constant
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Aug 26, 2010
i have this error when i tried to compil a program :
[Code]...
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May 27, 2010
im getting the following compilation error when trying to compile a file under /proc using 5.5 RHEL
[code]
* procfs1.c - create a "file" in /proc
*
*/
#include <linux/module.h> /* Specifically, a module */
#include <linux/kernel.h> /* We're doing kernel work */
#include <linux/proc_fs.h> /* Necessary because we use the proc fs */
#define procfs_name "helloworld"
code....
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Oct 1, 2010
I'm trying to compile a package of OpenKiosk call NodeView on Ubuntu 10.04, I finally manage to run the 1rs. step of 3 with no problem at all, that I have to do to install this program:
Quote:
1rt - ./configure --prefix=/usr
2nd - make
3rd - sudo make install
Now when I try to run make I get this error:
Code:
$ make
cd xmlrpc++0.7 && make -f Makefile
make[1]: Entering directory `/home/user/Desktop/nodeview-2.0.3/xmlrpc++0.7'
g++ -c -pipe -g -Wall -W -O2 -I/usr/share/qt3/mkspecs/default -I. -o .obj/XmlRpcSocket.o src/XmlRpcSocket.cpp
code....
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Oct 27, 2010
i'm trying to install php zip extension through pecl, issuing the following command pecl install zip but i'm getting the following error:
[code]...
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Nov 11, 2010
I have been trying to build a file called main.cpp through my make file which is in Linux.
There are functions like
Which are being called. I have included all the necessary headers and also have included the necessary lib.a files in the make file as below:
I am still getting the below error. I use make -j makefile.mak clean all command to make the build.
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Oct 9, 2010
I'm trying to compile the hidtouch driver, but hit a snag. The error I get is
[code]....
Context: this is the driver for the touchscreen attached to an LTSP client. The server uses the AMD64 arch, the client uses the 1386 arch, both Debian. The client does start, but lacking a pointer device the pointer is useless. The build takes place on the server, in the i386 chroot of the LTSP setup. Basically, I'm stuck now...
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Nov 10, 2009
I have install the dependiencies, by running the command sudo yum install qt4-devel jack-audio-connection-kit-devel successfully done (using fedora 11) After trying to build as [ajitj@fedora11 src]$ ./build But getting the error as bellow: (I have put some part of the lines)
../externals/includes/rtaudio-4.0.6/RtAudio.cpp:6164: error: �state� was not declared in this scope
../externals/includes/rtaudio-4.0.6/RtAudio.cpp:6164: error: �SND_PCM_STATE_XRUN� was not declared in this scope
../externals/includes/rtaudio-4.0.6/RtAudio.cpp:6166: error: �snd_pcm_prepare� was not declared in this scope
[code]....
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Jun 8, 2010
I create a simple code for add two number:
Code:
#include<iostream.h>
#include<stdio.h>
main()
{
int num1, num2, sum;
code....
I search the answer to my problem in various forums but I can't solve the problem.I think that is due to I need some package or that I don't install the necessary libraries.
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Jun 8, 2011
I have installed php-devel successfully prior to go with the installation (yum install php-devel). Here is what I did;
1.wget "url
2.tar xjvf ffmpeg-php-0.6.0.tbz2
3.cd ffmpeg-php-0.6.0
4.phpize
5../configure
6.make
7.make install
code....
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Jan 22, 2010
The full error that I get is:
Code:
setproctitle.c: In function 'compat_init_setproctitle':
setproctitle.c:100: warning: implicit declaration of function 'strlen'
setproctitle.c:100: warning: incompatible implicit declaration of built-in function 'strlen'
setproctitle.c:104: warning: incompatible implicit declaration of built-in function 'strlen'
setproctitle.c:108: error: 'argv_start' undeclared (first use in this function)
code....
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May 5, 2010
different python module for playing audio similar problem. This time pyAudiere (sorry for sounding a little bored by this, but I had not much success of late) Ok, I am trying to install Audiere which doesnt work. I download the dependencies (libaudiere), then I extract the tarball download from their website. then I followed a procedure from this website because that was the only one I could find (documentation is a little sparse in that compartment unfortunately) from the terminal I write
[Code].....
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Oct 27, 2010
I got some error in make
Code:
bash-4.1# ./configure
checking for a BSD-compatible install... /bin/ginstall -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
[code]....
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Nov 5, 2010
Am getting errors about "mysql_connect()" for the following code:
Have compiled PHP with MySQL support using the following:
Thought PHP 5.3 has a built-in replacement called mysqlnd, and there's no need to install "php-mysql" RPM.
However, according to the following site this is still required: [url]
Give me an idea whether I really have to install php-mysql RPM in order to use mysql_connect() for PHP?
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Apr 13, 2011
I've having problems with my Makefile.
I'm trying to create a program from 2 files - main.cpp that contains the main function, and modules.c that contains the definitions of the functions that are called in main(). modules.c only contain function definitions, no main function.
My Makefile is as follows:
Code:
I have included "modules.h", which contains all the function declarations, in my main.cpp.
When I try to make using this Makefile, I get the error
Code:
If I switch the order of modules.o and main.o in my $(TARGET) line, then I get errors that say "undefined reference to" the functions I have defined in modules.c, in main.cpp.
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Nov 16, 2010
Code:
#include <iostream>
using namespace std;
[code]...
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May 18, 2010
I am doing some Linux kernel programming for my research project. I need to record the timestamp (by using cpuid and rdtsc) when an interrupt handler (top half) is first invoked. Due to the time critical nature of the problem itself, I have to do the timestamping inside the interrupt handler itself (the first operation when the handler is called). However, I understand that tasks that are not so time critical should be deferred to a tasklet function (bottom half) for processing because other interrupts are disabled in a (top-half) interrupt handler. I am currently out of idea on how I can pass the timestamp information that I have obtained in the interrupt handler to the corresponding tasklet function.
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Jul 19, 2011
I wrote a test program for learning usage of realloc() and I thin I did everything right but I get this error exactly with my 4th time that while tries to reallocate memory in MakeDSt function for DSt->SArray:
Quote:
realloc(): invalid next size
this is my complete code :
Code:
#include <stdio.h>
#include <stdlib.h>
typedef struct DRA
{
code....
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Sep 17, 2010
I recently was pointed to [URL] in another thread and ran into a problem: What header file do I need to download to write the code in the documentation? Apparently no 'bignum.h' file on the Internet declares the "BN_ULONG" macro or "BN_BITS2" bit chunks.
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Apr 2, 2010
what "Message too long" error returned by the function dn_expand means?
The function call I used is as follows:
dn_expand(poutput, poutput + output_space_used, *out_rr, output_qname, 255);
I assumed that the error was due to the difference between the 1st argument and 2nd argument, However, changing the difference to the accepted dns message size (512 bytes) or even to no difference at all did nothing to remove the error.
Further, I am trying to check the output after having first compressed a domain name using dn_comp into *out_rr. This function call is in order to check whether the compression is happening correctly.
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Jan 2, 2010
i'am tring to use generic netlink and can't find function for blocking not busy waiting receive. I'll try to explain myself. Generic netlink receive mechanism based on callback function - when module receives something,this function invoked. But this is not so good if you need to send something and receive answer. I mean something like that :
sendmsg(); if(recvmsg() < 0) goto err; I need generic netlink recv() function, or some mechanism to implement it. I just want to stay in "recvmsg()" function until i have answer(until call_back function invoked).
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Mar 3, 2010
I have a shell script 'Test.sh' echo "Enter The File Name" read FILE_NAME echo "Enter The First Column"
read Col
RowNum=2
Diff=4
Data=" "
ColNumFrom=`grep -i $Col Data.csv | cut -d "," -f2`
ColNumFrom=`expr $ColNumFrom - 1`
[Code]...
When I run the File for Col 'AA02', it works fine but for Col as 'AB01', is throws following error sed: Function 2s@(.{302}).{4}@1 @ cannot be parsed.
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