Programming :: Could Not Read Symbols - Archive Has No Index

Apr 2, 2010

I am trying to port c & c++ open source code onto embedded target(MIPS).It compiles fine on x86/RH4. When I try embedded platform specific tool chain as follows, I get following error:

I tried different combinations. It did not help. My idea is to port an open source code that works fine on X86/Linux to an embedded target based on MIPS.

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Programming :: 'nm' Lists All Symbols - Including Static Library Symbols?

Apr 5, 2010

By issuing the 'nm' command on shared library (internally using one static library), the functions exposed by static library is also being listed, Which allows to use internal functions which is of course not intended. I have one static library having A(), B() and C() functions. Creating one shared library which has function XYS() that is using A() and B() functions from Static library. While doing 'nm' on shared library, all the static library function are being listed.

Static Lib:

void A(char *msg)


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Ubuntu :: Zip File Gvfsd-archive / Archive Mounter Read Write Mode

Dec 6, 2010

I'd like to ask about archive mounter feature, can I mount zip file with read write mode? can gvfsd-archive do that?, or I must use fuse-zip to mount it? If I must use fuse-zip, how I wrap it so I can use it via nautilus or via gvfs-fuse-daemon

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Programming :: BASH Read Text List Zip Files Into A Single Archive?

Jul 22, 2010

AKA "zipping on the fly .. the slow-as-molasses way." The list includes full pathnames to each file, and they're all in subfolders of the same parent folder (which, unfortunately, is not the root folder of the drive or system on which the files reside). A cleaned-up and radio-ready portion of the list looks like




What I'd like to be able to do is zip all the files in the list into a single archive, to avoid the step of having to copy them to the same location (presumably another folder on the HD) and then zip that folder. I'm more inclined to make provisions about extracting to a single folder at some other time. Is this possible in BASH, or would I have to consider a faster, more robust scripting language such as python or perl?

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Ubuntu Networking :: Localhost Can Read Phpinfo() But Not Index.php?

Jan 7, 2011

Installed apache2 and php5, got the message "It works!" and phpinfo() displays the info page from withing the my folder. But when i put my index.php and rest of the files in www/mysite/ I only get a blank page displaying nothing, as if my php scripts wont parse. If I create a plain html "hello world" doc it displays that.. I've used this guide before [URL] and got it to work last time some months ago, but this time around after clean ubuntu reinstall it's showing nothing, remember I struggled with some permission things last time doing sudo chmod a+rwx /var/www/* and same for subfolders css and images. but now nothing happens, no errors or nothing. I didnt have to do enything else last time, no php.ini or nothing, it just worked, after I set permissions to get css and images to display correctly. Tried to put my files in www alone but dont work either (also cannot delete the default index.html in the www folder). Tried to restart apache2 and the computer, but no luck. My site also works online from other servers, so this is a local problem.

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Programming :: GDB (No Debugging Symbols Found)

Oct 19, 2010

I'm running gdb across a network using gdb server. I've got it up and running. However I can't see any source or variables for my code (in ddd /gdb). At start up gdb says (no debugging symbols found). I've got a g in my make file,
CPFLAGS = -Wall -Os -g -pedantic

I've tried loading symbols in using "symbol-file testarm", this sort of works in that I can view symbols but not names, e.g. if I ask dd to show x y and z, rather than
x = 10
y = 20
x = 30

It says:

Also ddd does not show anything in the source window, is there a way I can get it to show this? I think it's because I've started ddd with ddd arm-linux-gdb, as I'm calling a crosscompiler gdb. So can I tell ddd to point to the correct folders? What commands I need to set in gdb/ddd to view variable names (it's hard to keep track when it bunches them all together) and how to view my source code.

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Programming :: Parser Symbols With Different Types

Nov 27, 2010

I decided to try making a programming language again after my last unsuccessful attempt, so now I figured how to write a good AST and it works great when the nodes are hard-coded into a test program. But to make a language out of it, I need a parser to build the tree according to an input file. I ran into a problem here:

YACC input file:
#include "nodes/allnodes.h"
#include "Node.h"
int vars[26];

%right ASSIGN
%left NE
%% .....

As you might see, each nonterminal creates a Node* object and uses it as its value. The problem is that the literal tokens, however, don't return Node*'s and I don't know what to do. I would like to be able to convert literal tokens to nodes in the Lex file (which would avoid the problem), but the problem is with the assignment operator, which takes a Node* for the right-hand side and a variable name (not a Variable Node, because they just evaluate the the variable's value and you can't change the variable with them) for the left hand side.

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Programming :: Difference Between Various Symbols Of Kernel

Aug 22, 2010

I was going through some exercise given in my school. I have read the C book but I am not able to understand some part. That is static variable. What exactly is a static variable and what does it do? I saw in Linux Kernel Programming external and exported are also some thing. I am not getting the difference between static,EXPORT_SYMBOL,external variable types. If I make a kernel module then how will I make sure that my variable is visible to the kernel. Is this what it is all talking about? I have checked this page [URL].

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Programming :: Removing Symbols From Binary Executable File

Aug 21, 2010

Arm-linux-strip for removing the symbols from binary executable file after compilation. What exactly the symbols means.

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Programming :: Cyclic Dependency When Using Extern Symbols From Libraries

May 4, 2010

I have a shared library (built from C++ code) and a separate C program which calls (extern) functions from the said library.

Also one of the functions in that library needs to call a function in this C program by declaring it 'extern'. This sort of creates a cyclic dependency.

I am getting "unresolved references" error, as expected.

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Programming :: No Debugging Symbols Found (not The Simple Case)?

Jan 6, 2011

I wasn't sure where to put this so if I need to move it just let me know.I have a strange problem that I cannot figure out. When I use gdb to debug our rpm-installed program, it says (no debugging symbols found) when it loads. Thing is, when I use nm on the program it can print the symbols, and even stranger is if I use gdb on the program before it is packed up by rpmbuild it loads the debug symbols just fine.Our program is built via the standard make using:GS=-g -Wall-pedantic and as I mentioned I can debug the resulting program. After the build, I package it up using:

cmd="rpmbuild -v -bb ptsnmp.spec --define "ver ${cmvc_release}" --define "rel ${cmvc_level}" --define "_topdir $rpmdir""When this package is installed via rpm, the binary on the machine shows all the debug info via nm, file shows it is not stripped:pt_snmp: ELF 64-bit LSB executable, AMD x86-64, version 1 (SYSV), for GNU/Linux 2.6.9, dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not strippedyet when I try to debug it I get the no debugging symbols found.This is really taxing my brain and I am sure I am just missing something

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Programming :: Undefined Symbols When Linking A With Main O Files

Feb 17, 2010

I am using Centos 5.4 with gcc v4.1.2. If I take a bunch of .o files and I then link with my main.o to form an executable then this links and executes just fine. If however, I try to create an archive file (.a) using 'ar rus xxx.o yyy.o etc' and then try to link the resulting .a with my main.o then I get 'undefined symbol' linker errors and I don't understand why.

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Programming :: Get A Variable To Work As The Index Of An Array?

May 3, 2010

I am having a little trouble with a Bash shell script that I am working on. It is intended to read the information out of a gedcom genealogy file and determine who has lived in a particular area and output a report based upon who lived in a given area (like the different sections of a bygdebok for example). I am having a number of issues.

1) I can't seem to figure out how to get a variable to work as the index of an array. For example, I am trying to use the variable $individual to count which individual is being read in from the .ged file, and once that is figured out, next I will read in the individual's name, so I would like to create an array of names using the variable

as the index of the array. However, if I try the code


I included only the last few lines of output as to not take up too much space because the output goes on forever, but you get the point from the example. This output has nothing to do with what the final output of the program is intended to be like. It is merely a test to prove that the 2 variables in question are getting their date loaded in properly.

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Programming :: Makefile Index Of List Element?

Apr 5, 2011

So I have been trying for 8 hours to try to get the index of an element from a list in a Makefile. The problem is that after I get the index using all the methods I have tried, the index cant be used in the "word" function:

for instance:
$(OUTPUT2) : INDEX = $(shell echo $(OUTPUT2) | sed -r -e "s/[ ]+/
/g" | grep -n $@ | sed 's/^([0-9]*):.*/1/')

will create a variable INDEX defined specifically for each member of OUTPUT2, so that each output knows its index. Unfortunately, when I pass this $(INDEX) into word, it doesn't work:

$(OUTPUT2) : $(word $(INDEX), $(INPUT1)) $(word $(INDEX), $(INPUT2))
echo $(INAME) $(TMPBASE) $@
and I get the error:
Makefile:16: *** non-numeric first argument to `word' function: 'num'. Stop.

I feel like if I could just convert a string to a Makefile acceptable number this would just work....

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Programming :: Script To Create Index.html File?

Sep 25, 2010

I need a script that can do this: A script that searches all directories and subdirectories for .html files When a .html file is found it creates a index.html file in that folder. It then edits the index.html file and inserts links to all of the .html files that are in that folder into the body. If no .html files are found, it searches for folders. It then creates a index.html file with links to all of the folders.

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Programming :: Python Error - List Index Out Of Range (Web Scrapper)

Feb 18, 2011

Having a bit of an issue with Python while trying to write a script to download every rar file on a webpage. The script successfully downloads any link that doesn't contain any spaces, etc. But when it hits a url like: [URL] (Classical Spelling).rar. It fails...I'm sure this is something simple, but I'm so new to python I'm not sure what to do!

import urllib2
import os
os.system("curl [URL] -i rar|cut -d '"' -f 2 > temp.out ")
infile =open('temp.out', 'r')
for url in infile:
print url
#url = "[URL]"

#url = target
file_name = url.split('/')[-1]
u = urllib2.urlopen(url)
f = open(file_name, 'w')
meta =
file_size = int(meta.getheaders("Content-Length")[0])
print "Downloading: %s Bytes: %s" % (file_name, file_size)
file_size_dl = 0
block_sz = 8192

while True:
buffer =
if not buffer:
file_size_dl += block_sz
status = r"%10d [%3.2f%%]" % (file_size_dl, file_size_dl * 100. / file_size)
status = status + chr(8)*(len(status)+1)
print status,

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Programming :: Provide A Block Size To Open An Archive?

Jul 12, 2011

Here [URL].. it says that you need to provide a block size to open an archive. What does that mean, and what would be a good number to use?

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Programming :: Warning: This System Can Not Link To Static Lib Archive

Jan 27, 2010

I'm trying to link 'aubio' (a lib) and its failing on one of ts dep's with this error.


$ make
Making all in src
make[1]: Entering directory `/home/John/Externals/aubio/aubio-0.3.2/src'
make all-am


"Warning: This system can not link to static lib archive /usr/local/lib/libff"

I've configured/make/make installed fftw and its doing just fine in the usr/lib folder, so I'm at a loss at how to fix this. Do I need to build fftw again using some kind of shared make switch? I couldn't find any referance about that.

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Programming :: Ar - .libs/libbfd.a - Error Reading Archive.o - File Truncated

May 30, 2010

So the above is the error message I am receiving when trying to compile (at make stage when error received) binutils 2.20.1. I am compiling in Virtualbox and the base machine is SourceMage 64bit.

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Programming :: Timer In Socket Programming - Wait For X Sec After Read() And Then Disconnect The Client Connection

Mar 8, 2011

I have a server listening on incoming client connections. Once the client establishes SSL connection with the server, the server waits on read() from the client. Only Client can disconnect the connection. I want to have a timer in the server program to wait for x secs after read() and then disconnect the Client connection.

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General :: Get Error "does Not Look Like A Tar Archive" When Attempt To Verify An Archive Using Tar?

Jul 13, 2011

I am new to the world of linux and when attempting to verify a tar archive I am displayed the following error. When running the command tar cvfW archivename.tar filename directoryname does not yield any errors.

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Programming :: Move The Index Of A File To Another Existing File?

Feb 8, 2011

i want to move the text of a file to another file,using sed command. how can i do it?

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Ubuntu :: Downloading Programs - The "Archive Manager" Comes Up And Says "An Error Has Occured While Loading The Archive"?

Jan 10, 2010

I'm new to Ubuntu, and everytime i've tried to download a program like iTunes, the "Archive Manager" comes up and says "An Error Has Occured While Loading the Archive". how to fix this or download programs ?

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Programming :: Create Inverted Files To Associate Files To Numbers ( Numbers Being The Index Of My Paths )?

Apr 4, 2011

am writing a small search program for my class. I have decided to use indexing for my program. Ive researched online about indexing and how search engines do it. If im gonno do that I need to create inverted files to associate files to numbers ( numbers being the index of my paths ) . Now I was wondering what would be the best way to create an inverted file ? I was going to create sql tables using mysql api in C but then again there is no array data type or vectors to store few numbers in a single column in mysql and it is not advised to use Enum or SET

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Programming :: How To Read RSS With XML

Sep 26, 2010

I try to use XML::Simple to read each 'feed' from following RSS from CNN. Some of the sets contains more than one feed item which has no unique identifier besides its contents.

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<rssfeeds> <set id="1">
<!-- RSS feeds from !--> <!-- XBOX Scene !-->
<feed updateinterval="30"></feed>
</set> <set id="2"> <!-- RSS feeds from !-->
<!-- World News !--> .....

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Programming :: Read And Save From A .txt - C++?

Mar 28, 2009

I need to read from a file called ranking.txt the name of the players and the respective score. The file is something like this:

24145 John Burt
12442 Kate Blair


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Programming :: Regex To Read An Ip?

May 14, 2011

I need a regex expression to read IP address from lines like these for my perl script:

2011.05.13-14:54:58,,, pop3
2011.05.13-14:57:26,,, pop3
2011.05.13-14:57:54,,, imap
2011.05.13-14:57:55,,, imap
2011.05.13-15:03:08,,, pop3

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Programming :: Read A Foldername Into A Variable?

Jul 14, 2010

I am trying to write a script which can read the names of all folders within a given folder into separate variables. In effect, if a folder contains a folder "Folder1", "Folder2", "Folder3", the script would read those names into variables such as:

Variable1 = "Folder1"
Variable2 = "Folder2"
Variable3 = "Folder3"

I have tried fiddling with the find . command, but without any success.

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Programming :: Read Data From A Socket?

Aug 24, 2010

I need to read data from a socket but it should be always listening because data arrives continuously .. I thought something like this would do it but it doesn't work .... I already set the socket options before

Code: char databuf[1024];
int datalen = sizeof(databuf);
if(read(sd, databuf, datalen) < 0)


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Programming :: Cannot Prompt User In While-read

May 15, 2011

I'm facing a problem in a - at least I though it would be - simple BASH script. I use 'awk' to find matching lines in a file, and then use while-read to modify each line matching the expr casted in awk. It looks like this:


function foo() {
awk '$NF~/^./{print $NF}' FILE.TXT|while read line; do
bla bla bla ...


However, each time the execution hits the 'read choice' line, it doesn't prompt - as well as pause the excution - the user for a choice: it just passes it. This problem just happens inside the while loop.

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