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Undefined Reference To Main Error In C

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Not the answer you're looking for? also could elaborate on last step a bit? # then call ${SVTOOL} again for simulation with libdpi.so –Sandeep Aug 7 '13 at 17:18 '-O2' is a level 2 optimizer. Code: gcc -c file1.c -o file1.o gcc -c file2.c -o file2.o gcc file1.o file2.o -o executable or just gcc file1.c file2.c -o executable This differs from Java, where you can just Why is this Sudoku Skyscraper Failing? http://centralpedia.com/undefined-reference/undefined-reference-to-main-error.html

The question does not have to be directly related to Linux and any language is fair game. You are compiling a DPI library to be used with a SystemVerilog simulator. Adv Reply September 26th, 2010 #9 Kareta View Profile View Forum Posts Private Message 5 Cups of Ubuntu Join Date Sep 2010 Location 127.0.0.1 Beans 40 Re: Undefined reference to yaa see View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by yaa see 07-29-2011, 07:52 AM #14 dunlopjp LQ Newbie Registered: Apr http://stackoverflow.com/questions/15905119/c-linking-error-undefined-reference-to-main

Undefined Reference To Main Gcc

Minimum of a function on an open interval Do pulled hair from the root grow back? Note that registered members see fewer ads, and ContentLink is completely disabled once you log in. pplppp View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by pplppp 11-23-2005, 03:27 PM #10 [email protected] Member Registered: Sep 2005 Posts: 118

Try to indent your file, it will be more readable to you... –Basile Starynkevitch Dec 2 '11 at 6:40 @Basile Starynkevitch: I have a main. How can I make two cutting lines close to each other? share|improve this answer answered Dec 23 '13 at 14:38 Eric Postpischil 43.1k54997 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Undefined Reference To Main Makefile You need to add it: $ gcc -o runexp runexp.c scd.o data_proc.o -lm -fopenmp share|improve this answer answered Apr 9 '13 at 14:52 unwind 256k39332460 add a comment| up vote 1

Am including comments from jxh per his request: To import the function into SystemVerilog, you need to compile your function into a shared object. Undefined Reference To Main In Function _start you are fools for reopening a thread from two years ago. Join them; it only takes a minute: Sign up Undefined reference to ''main" in a C program up vote -2 down vote favorite 1 I have read the other answers on http://stackoverflow.com/questions/14620435/c-error-undefined-reference-to-main asked 2 years ago viewed 1694 times active 2 years ago Related 4Undefined reference to 'main' error in crt1.o function _start1Undefined reference to main fortran program1undefined reference to `main' in C0Undefined

Did you try the simple g++ command? Undefined Reference To Main Eclipse For instance, static main(String [ ] args) can be the same as static main(String[ ] anyvariablename), and will work without a problem. Find More Posts by Dave Kelly 11-19-2005, 04:52 PM #6 [email protected] Member Registered: Sep 2005 Posts: 118 Original Poster Rep: Variable names are not interdependent on execution. And it looks like you may have main() in the header file and the function defs in the source (.c*) file..

Undefined Reference To Main In Function _start

Use -v and you will see what I mean... –Jean-Baptiste Yunès Jan 16 '15 at 13:19 It's evident he wants to compile a static executable, and -static is not http://stackoverflow.com/questions/27963150/undefined-reference-to-main-error-in-gcc-4-7 It keeps popping up the following error: /usr/lib/gcc/i386-redhat-linux/4.0.0/../../../crt1.o(.text+0x18): In function `_start': : undefined reference to `main' collect2: ld returned 1 exit status This happens whether I compile the code using a Undefined Reference To Main Gcc An executable needs to have an entry point, thereby the linker complains. Undefined Reference To Main G++ In many cases, the previous post may not be available to people reading your post.

using -I option to point to svdpi.h resolved that issue.. –Sandeep Aug 7 '13 at 17:14 add a comment| up vote 0 down vote You have no main function. have a peek at these guys Your problem would seem to be that you have multiple executables in the same project, and that one or more of them does not have a main. asked 1 year ago viewed 447 times active 1 year ago Visit Chat Related 1657Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?-1How do I understand this compiler error: “multiple definition of …”24gcc My flow looks something like the following: ${SVTOOL} -compile -f svfiles.f -dpi_header gen_dpi_header.h gcc -fPIC -pipe -O2 -c -g \ -I${SVTOOL_PATH}/include -Imy_dpi_dir -I. \ -o fftw_test_DPI.o \ fftw_test_DPI.c gcc -shared -o Undefined Reference To Main C++

Check that the files are properly created and where, as I think you aren't compiling that file anyway. I'm wondering your void fftw(double FFT_in[],int size) might be clobbering a library function. Here is the list.h file that has simple headers: list.h #ifndef LIST_H #define LIST_H #include const int DEFAULT_CAPACITY = 100; class List { public: List(); List(int capacity); ~List(); void push_back(std::string http://centralpedia.com/undefined-reference/undefined-reference-gcc-error.html How do I handle an unterminated wire behind my wall?

Browse other questions tagged c linker or ask your own question. Undefined Reference To Main' Fortran If two topological spaces have the same topological properties, are they homeomorphic? To learn what preprocessing is doing, try gcc -C -E es3.c > es3.i then look with an editor into the generated file es3.i (and search main inside it).

Also, the tutorial has the following import statement: import "DPI" function void slave_write(input int address, input int data); This SystemVerilog statement obviously has input defs on the parameters, is this required?

  • Why does my capsule collider fall without my object (Unity)?
  • In your case runexp.o is treated as output file name, not input object file and thus your main function is undefined.
  • And you should always listen to the warnings, i.e.
  • Similar topics undefined reference to "operator new" and "operator delete" undefined reference to "..." Singleton Attempt, Static Variable, "Undefined reference" error.
  • Not the answer you're looking for?
  • Thanks.
  • please use $ objdump -t es3.o to check if there is a main symbol.

Therefore, you do not need a main() method. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. How to apply for UK visit visa after four refusal Do pulled hair from the root grow back? Undefined Reference To Main Assembly How strange is it (as an undergrad) to email a professor from another institution about possibly working in their lab?

Registration is quick, simple and absolutely free. Click Here to receive this Complete Guide absolutely free. SXA Page Design vs Page Standard Values vs Page Branch Template Watching order for the Dan Brown films? http://centralpedia.com/undefined-reference/undefined-reference-to-pow-error.html oh yeah I forgot to mention I named it dice13.c instead of diceroller but that shouldn't make any difference.

How would a person see with an adjustable cross-shaped pupil? dwhitney67 View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by dwhitney67 Thread Tools Show Printable Version Email this Page Search this Thread Advanced LinuxQuestions.org > Forums > Non-*NIX Forums > Programming Getting undefined reference to main error?? Most people are honest in their approach and have, from their point of view, a valid question. –JackCColeman Aug 6 '13 at 22:20 @Sandeep - based on your question

Would you like to answer one of these unanswered questions instead? How do we play with irregular attendance?