CODEWITHSUNDEEP
eclipsecygwin
Dov
Dov

Reputation: 8572

How to get gdb working with Eclipse CDT under windows (fails to find source code)

I installed cygwin (the latest 1.7.xx?), and then installed eclipse cdt (Juno).

When I tried to build a hello world project, despite eclipse identifying that cygwin was installed, it didn't work.

So I manually added c:\cygwin\bin to the path, which found all the executables in cygwin, including g++, make ld, etc.

Now, eclipse can build the project, but when debugging, gdb starts up and can't find the source code. It claims that it can't find:

/cygdrive/c/users/me/workspace/test1/test1.cc . even though that's exactly where it is. It's as though cygwin's directory system doesn't work.

I can manually load the source from:

c:\users\me\workspace\test1\test1.cc

and the debugger works, but the next time I start a new project, I have to do it again. How do you instruct the eclipse/cygwin combo to correctly find source code?

Alternatively, is Mingw any easier? I have experienced similar problems with eclipse seeing that mingw is there, but build failing because it doesn't find the executable.

Upvotes: 13

Views: 18596

Answers (6)

manu
manu

Reputation: 1

I replaced gdb with msys gdb. For example:

Current configuration:

... Application Configuration .. Debug .. Debug

GDB Debugger gdb

to

GDB Debugger path to msys gdb (like for example c:\msys\bin\gdb.exe

Upvotes: 0

AnotherDeveloper
AnotherDeveloper

Reputation: 2201

Although Above are given good answers but still it might not solve the problem sometimes phew!!!!

Suppose you install Cygwin in C: but your eclipse workspace is in D: then there is a problem in your mounting

all you should do is, open the cygwing shell & type "mount" to get the following :

  Ritvika@Ashutosh ~
  $ ls

  Ritvika@Ashutosh ~
  $ mount
  C:/cygwin64/bin on /usr/bin type ntfs (binary,auto)
  C:/cygwin64/lib on /usr/lib type ntfs (binary,auto)
  C:/cygwin64 on / type ntfs (binary,auto)
  C: on /cygdrive/c type ntfs (binary,posix=0,user,noumount,auto)
  D: on /cygdrive/d type ntfs (binary,posix=0,user,noumount,auto)

  Ritvika@Ashutosh ~
  $

here my Projects are all under D:\ECWorkSpace, so my mapping needs to be present in Eclipse as: /cygdrive/d d:/

Hence, now Armed with this knowledge do what PathM says

 1. goto Window ==> Preferences ==> C/C++ ==> Debug ==> Source Lookup Path
 2. Add a Path Mapping: Project Source
 3. On the left side put "cygdrive\d",  & on the right put : "D:\"

This should work. ( It did for me :) ) You can Check this FAQ as well : https://wiki.eclipse.org/CDT/User/FAQ#I.27m_using_cygwin_and_when_launching_the_debugger.2C_it_complains_that_it_can.27t_find_the_source_file

Upvotes: 3

user3517051
user3517051

Reputation: 131

Go to Windows->Preference->C/C++ -> Debug -> Source Lookup Path. Add following 'Path mapping'.

\cygdrive\c -> c:\

Upvotes: 13

ParthaM
ParthaM

Reputation: 176

Here is how I made it work.

  1. I goto Window ==> Preferences ==> C/C++ ==> Debug ==> Source Lookup Path
  2. I Add a Path Mapping: Project Source
  3. On the left side I put the path that Cygwin expects, i.e. \home\MyName\projects and on the right side I put the Windows path, i.e. C:\cygwin\home\MyName\projects

Then when I debug it finds the source file fine.

Upvotes: 16

hpjepsen
hpjepsen

Reputation: 11

Look at set-up of "Common Source Lookup Path" here: http://wyding.blogspot.dk/2009/04/setup-cygwin-toolchain-in-eclipse-cdt.html

Upvotes: 0

Gauthier Boaglio
Gauthier Boaglio

Reputation: 10262

I use MinGW + CDT, and it is giving me great satisfaction. I installed it many times and never had any disagreement. No much to configure than what you did with cygwin. Download the Eclipse for C/C++ developers (probably what you did) to get CDT (MinGW Tool Chain -> gdb + gcc) directly operational. Set your \\MinGW\bin\ directory into your PATH and you should be good to go...

Note : Like Cygwin, MinGW provides a Linux-like Shell.

For MinGW-64, ready-made builds are a little bit more difficult to locate. See here.

Upvotes: 2

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