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|ID||Project||Category||View Status||Date Submitted||Last Update|
|0004788||OCaml||-OCaml general||public||2009-05-08 17:07||2015-12-11 19:21|
|Target Version||4.01.0+dev||Fixed in Version||4.01.0+dev|
|Summary||0004788: Highly misleading error message|
|Description||Debug symbols for executables compiled with -g are read directly from the executable file, but the latter is searched in the current directory. Thus,|
if the program does a Sys.chdir to another directory, the executable is not found. The very misleading error message the user gets is "(Program not linked with -g, cannot print stack backtrace)" in place of "Executable program not found in $CURRENTDIR". Obviously, an even better solution would be to always look for the executable in the path the program was launched.
The program in attachment shows the problem (unless you run it from /tmp, of course :-)
|Tags||No tags attached.|
|Attached Files||foo.ml [^] (64 bytes) 2009-05-08 17:07 [Show Content]|
|Really? My impression was that under Linux bytecode full path is taken on startup from /proc/self/exe. Other OSes search system $PATH for argv. In both cases current directory should not affect the process. But I agree that something like "Bytecode file not found, cannot print stack backtrace" would be better.|
The executable file is looked up in the PATH, except of course when it's invoked without using the PATH (for example, as ./a.out).
We need to fix the error message, but we can't do much to get rid of the error itself.
edited on: 2013-08-02 16:11
I've changed the error message in case the executable file is not found (branch 4.01, rev 13966 and 13967).
The solution is not perfect, because when the current directory contains another a.out compiled by OCaml with symbols, you get a bogus backtrace instead of an error message. Backtraces are for debugging, so I guess we can live with this.
|2009-05-08 17:07||sacerdot||New Issue|
|2009-05-08 17:07||sacerdot||File Added: foo.ml|
|2009-05-08 18:34||db||Note Added: 0004953|
|2009-05-15 17:08||doligez||Note Added: 0004954|
|2009-05-15 17:08||doligez||Status||new => acknowledged|
|2009-08-25 09:59||xclerc||Relationship added||related to 0003928|
|2012-07-11 14:52||doligez||Target Version||=> 4.01.0+dev|
|2012-07-31 13:36||doligez||Target Version||4.01.0+dev => 4.00.1+dev|
|2012-09-17 13:56||doligez||Target Version||4.00.1+dev => 4.00.2+dev|
|2013-07-09 17:27||doligez||Target Version||4.00.2+dev => 4.01.0+dev|
|2013-08-02 15:57||doligez||Note Added: 0010079|
|2013-08-02 15:57||doligez||Status||acknowledged => resolved|
|2013-08-02 15:57||doligez||Resolution||open => fixed|
|2013-08-02 15:57||doligez||Fixed in Version||=> 4.01.0+dev|
|2013-08-02 16:11||doligez||Note Edited: 0010079||View Revisions|
|2015-12-11 19:21||xleroy||Status||resolved => closed|
|2017-02-23 16:36||doligez||Category||OCaml general => -OCaml general|
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