Gcc Error Parser
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million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Is there any way to get readable gcc error and warning output at the command line? up vote 20
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down vote favorite 7 For some long errors, the gcc output is dense and has lots of line-wrapping etc. Especially when errors are subtle, it can take me 10-30 seconds of squinting to parse it with my eyes. I've taken to pasting this in an open code-editor window to get some basic syntax highlighting and enable reformatting with regex's. Has anyone invented a more automated method? c++ c gcc gcc-warning share|improve this colorgcc question asked Mar 17 '09 at 23:27 mikeh 1 I just make the window very wide... –i_am_jorf Mar 17 '09 at 23:33 And the font very small ;) –Anonymous Mar 17 '09 at 23:35 1 and then stop using gcc. :D –Robert P Mar 17 '09 at 23:44 2 Clarification: I love intel's c++ compiler. The messages are clean, short, and pointed. Back when I still had a license, I'd test my compiles in intel's compiler before I built with GCC just to find the big problems. –Robert P Mar 17 '09 at 23:45 @Robert I'm intrigued, hope I get a chance to try that sometime. Not appropriate on the current project unfortunately... –mikeh Mar 18 '09 at 4:28 | show 1 more comment 8 Answers 8 active oldest votes up vote 14 down vote I've found colorgcc to be invaluable. By introducing coloring, it becomes much easier to mentally parse the text of gcc error messages, especially when templates are involved. share|improve this answer answered Mar 17 '09 at 23:43 Mr Fooz 39.8k35083 1 Hey, I posted that with a temp account and now I can't follow up with it, but I wanted to say thanks for this -- that is an awesome utility and just t
visually indicate those problems to a user. The problems are highlighted on the Console, populate the Problems view and shown in the editor. Problem markers are organized into Error , gcc warnings Warning and Infocategories. There are several predefined Error Parsers where each one can handle output of a specific tool. Normally a toolchain defines a set of Error Parsers to deal with output of each tool. It is possible to redefine that set on a per-project basis in project properties: In the C/C++ Projects view, right-click the project, and select Properties. Expand C/C++ Build. Select http://stackoverflow.com/questions/656420/is-there-any-way-to-get-readable-gcc-error-and-warning-output-at-the-command-lin Settings. Click the Error Parsers tab. In the Error parsers list, select error parsers. Click OK. Note that the order of error parsers is significant. Normally an error parser will consume the line where it spotted an error/warning and the others down the line won't get a chance to parse it. CDT provides one special kind of error parser, CDT pushd/popd CWD Locator. This http://help.eclipse.org/luna/topic/org.eclipse.cdt.doc.user/tasks/cdt_t_proj_error_parser.htm parser does not create problem markers but it is looking for output of pushd and popd commands which are commonly used in makefiles to print the Current Working Directory (CWD). CDT can use this information to associate the file names appearing in the output relative to the CWD. Note that that kind of parser needs to be the first to be able to provide the CWD to the other parsers. Most of the error parsers are configurable via regular expression patterns and a user can: Adjust a pattern to detect a problem more accurately, Disable useless or proliferating problems (Note that it can have positive effect on performance of the console), Create own error parser for a custom tool. Hint: To run a custom tool you can use Make Targets View. To customize error parsers do following: Select Window > Preferences . Expand C/C++. Select Error Parsers tab. Select error parser or Add a new one. Follow Error Parser Options to define your custom patterns CDT Projects Project file views Tracking down compilation errors Tuning Error Parsers Console View Problems View Make Targets View Error Parsers tab Error Parser Options
Windows and many major Linux distros here . Home Help Search Login Register Wiki Code::Blocks » User forums » Using Code::Blocks » Compiler output parsing: gcc notes « http://forums.codeblocks.org/index.php?topic=15306.0 previous next » Send this topic Print Pages: [1] Go Down Author Topic: Compiler output parsing: gcc notes (Read 5081 times) iFred Single posting newcomer Posts: 3 Compiler output parsing: gcc notes « on: https://gcc.gnu.org/onlinedocs/gnat_ugn/Output-and-Error-Message-Control.html September 28, 2011, 12:59:43 pm » I'm using gcc 4.5.2 and svn build of C::B (rev. 7451).Sometimes gcc outputs notes during compilation. Here is an example:Quote from: gccfilename.h:29:6: note: expected ‘CHAR *’ but argument gcc error is of type ‘CARD8 *’Unfortunately they threated as errors by C::B output parser.Does anyone know how to fix this? Logged zabzonk Guest Re: Compiler output parsing: gcc notes « Reply #1 on: September 28, 2011, 01:08:04 pm » Well, it is an error (or at least a warning), what do you want CB to do with it? Logged jens Administrator Lives here! Posts: 7062 Re: Compiler output parsing: gcc error parser gcc notes « Reply #2 on: September 28, 2011, 01:59:03 pm » I just (hopefully) fixed this bug in trunk.It occurred, because newer gcc's give the column of the error/note/warning, while older versions < 4.5 only did this for preprocessor messages (as far as I know).So the compiler note was incorrectly treated as preprocessor-error. Logged Fedora package maintainer for Code::BlocksJens' Debian - nightlies (and release)Fedora [23 - 25]- and CentOS/RedHat 7 - nightlies iFred Single posting newcomer Posts: 3 Re: Compiler output parsing: gcc notes « Reply #3 on: September 28, 2011, 02:23:56 pm » Quote from: jens on September 28, 2011, 01:59:03 pmI just (hopefully) fixed this bug in trunk.It occurred, because newer gcc's give the column of the error/note/warning, while older versions < 4.5 only did this for preprocessor messages (as far as I know).So the compiler note was incorrectly treated as preprocessor-error.Thank you! I'll test it when your modifications will appear in your debian repository. Logged jens Administrator Lives here! Posts: 7062 Re: Compiler output parsing: gcc notes « Reply #4 on: September 28, 2011, 04:42:02 pm » Quote from: iFred on September 28, 2011, 02:23:56 pmQuote from: jens on September 28, 2011, 01:59:03 pmI just (hopefully) fixed this bug
to stderr (the standard error file) and have the following form: e.adb:3:04: Incorrect spelling of keyword "function" e.adb:4:20: ";" should be "is" The first integer after the file name is the line number in the file, and the second integer is the column number within the line. GPS can parse the error messages and point to the referenced character. The following switches provide control over the error message format: -gnatv The v stands for verbose. The effect of this setting is to write long-format error messages to stdout (the standard output file. The same program compiled with the `-gnatv' switch would generate: 3. funcion X (Q : Integer) | >>> Incorrect spelling of keyword "function" 4. return Integer; | >>> ";" should be "is" The vertical bar indicates the location of the error, and the >>> prefix can be used to search for error messages. When this switch is used the only source lines output are those with errors. -gnatl The l stands for list. This switch causes a full listing of the file to be generated. In the case where a body is compiled, the corresponding spec is also listed, along with any subunits. Typical output from compiling a package body p.adb might look like: Compiling: p.adb 1. package body p is 2. procedure a; 3. procedure a is separate; 4. begin 5. null | >>> missing ";" 6. end; Compiling: p.ads 1. package p is 2. pragma Elaborate_Body | >>> missing ";" 3. end p; Compiling: p-a.adb 1. separate p | >>> missing "(" 2. procedure a is 3. begin 4. null | >>> missing ";" 5. end; When you specify the `-gnatv' or `-gnatl' switches and standard output is redirected, a brief summary is written to stderr (standard error) giving the number of error messages and warning messages generated. -gnatl=`fname' This has the same effect as `-gnatl' except that the output is written to a file instead of to standard output. If the given name fname does not start with a period, then it is the full name of the file to be written. If fname is an extension, it is appended to the name of the file being compiled. For example, if file xyz.adb is compiled with `-gnatl=.lst', then the output is written to file xyz.adb.lst. -gnatU This switch forces all error messages to be preceded by the unique string 'error:'. This means that error messages take a few more characters in space, but allows easy searching for and identification of error messages. -gnatb The b stands for brief. This switch causes GNAT to generate the brief format error messages to stderr (the standard error file) as well as