Cygwin Error Start Gdb
Contents |
results or crashes. Diagnosing these bugs and fixing them is made easy by special tools called debuggers. In the case of Cygwin, the debugger is GDB, which stands for "GNU DeBugger". This tool lets you run your program in a controlled environment where you can investigate the install gdb cygwin state of your program while it is running or after it crashes. Crashing programs sometimes create
Cygwin Ddd
"core" files. In Cygwin these are regular text files that cannot be used directly by GDB. Before you can debug your program, you
Mingw Gdb
need to prepare your program for debugging. What you need to do is add -g to all the other flags you use when compiling your sources to objects.Example 4.4. Compiling with -g bash$ gcc -g -O2 -c myapp.c bash$ gcc -g
Vmware Gdb
myapp.c -o myapp What this does is add extra information to the objects (they get much bigger too) that tell the debugger about line numbers, variable names, and other useful things. These extra symbols and debugging information give your program enough information about the original sources so that the debugger can make debugging much easier for you.To invoke GDB, simply type gdb myapp.exe at the command prompt. It will display some text telling you about itself, then vim gdb (gdb) will appear to prompt you to enter commands. Whenever you see this prompt, it means that gdb is waiting for you to type in a command, like run or help. Oh :-) type help to get help on the commands you can type in, or read the [GDB User's Manual] for a complete description of GDB and how to use it.If your program crashes and you're trying to figure out why it crashed, the best thing to do is type run and let your program run. After it crashes, you can type where to find out where it crashed, or info locals to see the values of all the local variables. There's also a print that lets you look at individual variables or what pointers point to.If your program is doing something unexpected, you can use the break command to tell gdb to stop your program when it gets to a specific function or line number:Example 4.5. "break" in gdb (gdb) break my_function (gdb) break 47 Now, when you type run your program will stop at that "breakpoint" and you can use the other gdb commands to look at the state of your program at that point, modify variables, and step through your program's statements one at a time.Note that you may specify additional arguments to the run command to provide command-line arguments to your program. These two cases are the same
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers emacs gdb or posting ads with us Unix & Linux Questions Tags Users Badges Unanswered Ask Question _ clion make not found Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Join them; it only cygwin gcc command not found takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top All Cygwin packages installed but can't run GDB up vote 0 down https://cygwin.com/cygwin-ug-net/gdb.html vote favorite I have installed all of the Cygwin packages but when I try to launch my executable file by typing this into the terminal $ gdb ./a.exe I get the following message: -bash: gdb: command not found What might be wrong? Why isn't gdb working? cygwin gdb share|improve this question edited Feb 15 at 18:17 Thomas Dickey 32.7k34183 asked Feb 15 at 18:12 Joel 31 does echo $PATH include "c:\cygwin\bin" ? –Jeff Schaller Feb 15 at 18:16 http://unix.stackexchange.com/questions/263440/all-cygwin-packages-installed-but-cant-run-gdb "All" packages could be just the base stuff, which doesn't include development. –Thomas Dickey Feb 15 at 18:18 @ Jeff Schaller It includes /usr/local/bin:/usr/bin –Joel Feb 15 at 18:20 Can anyone help me. It still doesn't work. –Joel Feb 15 at 19:09 Have you tried running cygcheck -c gdb and/or cygcheck gdb in the cygwin terminal? –steeldriver Feb 15 at 22:41 | show 2 more comments active oldest votes Know someone who can answer? Share a link to this question via email, Google+, Twitter, or Facebook. Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service. Browse other questions tagged cygwin gdb or ask your own question. asked 7 months ago viewed 433 times Related 1Alias in cygwin bash doesn't seem to run in the right order0gdb not launching app2Tshark not running via gdb1Cygwin : make install up to date problem1Increasing stack size in 64 bit Cygwin? (installing ocaml)3Run an X11 program under Cygwin2Installing SSH via Cygwin0Getting CRC mismatch warnings in gdb on cygwin1scons can't find glib-2.0 >= 2.32 on cygwin0Silencing GDB Missing separate debuginfos, use: zypper install … error message Hot Network Questions Harry Potter: Why aren't Muggles extinct? Is it decidable to check
Base Contact Contact Blog About Us Knowledge base Home http://visualgdb.com/KB/?ProblemID=cygwin Missing Visual Studio Visual C++ Not Found Add-in not started NDK-Build bug 32-bit NDK bug GDB not responding http://forums.codeblocks.org/index.php?topic=19622.0 App startup bug Ndk-build bug No devices found No gdbserver found Gdbserver stopped Cannot attach Slow source not found listing Break-in problems MinGW unusable Cygwin unusable No menu commands run-as package bug Sudo problems App not debuggable Missing cygwin components VisualGDB requires the following cygwin tools to be installed: gcc.exe gdb.exe make.exe ar.exe cygwin error start The tools should be normally installed in c:\cygwin\bin where c:\cygwin is your cygwin installation folder. If you are missing some of the tools, please run cygwin setup, open "Select Packages" and ensure that the following packages are installed (inside the Devel category): binutils gcc-g++ make After installing the packages please restart the VisualGDB Project Wizard. Note: you do not need cygwin to build remote Linux or Embedded Applications. Cygwin is only required if you want to build Win32 apps based on Cygwin. Follow @sysprogs Tweet Terms of Use | Copyright | Privacy and Cookie Policy © 2012-2016 Sysprogs OÜ. All rights reserved.
last months will be deleted periodically to fight SPAM! Home Help Search Login Register Wiki Code::Blocks » User forums » Using Code::Blocks » gdb cannot open file error « previous next » Send this topic Print Pages: [1] Go Down Author Topic: gdb cannot open file error (Read 3908 times) whitebloodcell Single posting newcomer Posts: 4 gdb cannot open file error « on: September 08, 2014, 07:49:21 pm » Depending on which file I place a breakpoint in or in which file it first encounters a segmentation or arithmetic fault, gdb reports that it is unable to open that file. The log is below. It is a matter of urgency (thesis due today) that I figure this out and so far searching online has turned up nothing.I changed to using the cygwin gdb from mingw included one as the mingw one was suddenly giving me a different error which I also could not resolve. Code: [Select]Building to ensure sources are up-to-date
Selecting target:
Debug
Adding source dir: H:\SkyDrive\Development\HotHandByChance\
Adding source dir: H:\SkyDrive\Development\HotHandByChance\
Adding file: H:\SkyDrive\Development\HotHandByChance\bin\Debug\HotHandByChance.exe
Changing directory to: H:/SkyDrive/Development/HotHandByChance/.
Set variable: PATH=.;C:\boost_1_55_0\stage\lib;C:\cygwin64\bin;C:\cygwin64;C:\MinGW\bin;C:\MinGW;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files (x86)\AMD APP\bin\x86_64;C:\Program Files (x86)\AMD APP\bin\x86;C:\Windows\System32;C:\Windows;C:\Windows\System32\wbem;C:\Windows\System32\WindowsPowerShell\v1.0;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files\Calibre2;C:\Program Files (x86)\MiKTeX 2.9\miktex\bin;C:\Program Files\MATLAB\R2013a\runtime\win64;C:\Program Files\MATLAB\R2013a\bin;C:\Program Files (x86)\Windows Kits\8.0\Windows Performance Toolkit;C:\Program Files (x86)\PDFtk\bin;C:\Program Files (x86)\QuickTime\QTSystem;C;C:\Program Files\Java\jdk1.7.0_51\bin;C:\Program Files\Java\jre7\bin;C:\ADT\sdk\platform-tools;C:\MinGW\msys\1.0\bin;C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit;C:\Program Files\Mic