[Bug c/40251] New: Using the -V option makes the compiler to exit with 0 exit code on error

[Bug c/40251] New: Using the -V option makes the compiler to exit with 0 exit code on error

[zoltan at bendor dot com dot au]

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If a file has errors and gcc gets the -V X.X.X command line option, then the
exit code is 0. The following illustrates it:

[zoltan manocska]~>arm-elf-gcc --version
arm-elf-gcc (GCC) 4.4.0
Copyright (C) 2009 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[zoltan manocska]~>echo "@" > test.c 
[zoltan manocska]~>arm-elf-gcc -c test.c
test.c:1: error: stray ‘@’ in program
[zoltan manocska]~>echo $?
1
[zoltan manocska]~>arm-elf-gcc -V 4.4.0 -c test.c
test.c:1: error: stray ‘@’ in program
[zoltan manocska]~>echo $?                       
0
[zoltan manocska]~>arm-elf-gcc -V 4.0.2 -c test.c
test.c:1: error: stray ‘@’ in program
[zoltan manocska]~>echo $?                       
0

In a makefile, where a specific compiler is chosen, this bug causes very severe
headaches. I don't know if it's true for all targets, but I tried it with
arm-elf and mips-elf, they both show the same erroneous behaviour. Before the
4.4.0 compiler was installed, the 4.0.2 compiler did not exhibit this bug:

[zoltan manocska]~>arm-elf-gcc-4.0.2 -c test.c 
test.c:1: error: stray ‘@’ in program
[zoltan manocska]~>echo $?                     
1
[zoltan manocska]~>arm-elf-gcc-4.0.2 -V 4.0.2 -c test.c
test.c:1: error: stray ‘@’ in program
[zoltan manocska]~>echo $?                             
1
[zoltan manocska]~>arm-elf-gcc-4.0.2 -V 4.4.0 -c test.c
test.c:1: error: stray ‘@’ in program
[zoltan manocska]~>echo $?                             
1


-- 
           Summary: Using the -V option makes the compiler to exit with 0
                    exit code on error
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zoltan at bendor dot com dot au
  GCC host triplet: x86-elf-linux
GCC target triplet: arm-elf-none


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40251

[Bug driver/40251] Using the -V option makes the compiler to exit with 0 exit code on error

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2009-05-29 02:49 -------
I have been noticing weird issues with -V option too like the -o option not
being passed correctly and such.


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pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|major                       |normal
          Component|c                           |driver


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40251

[Bug driver/40251] Using the -V option makes the compiler to exit with 0 exit code on error

[joseph at codesourcery dot com]

------- Comment #2 from joseph at codesourcery dot com  2009-05-29 10:06 -------
Subject: Re:   New: Using the -V option makes the compiler to
 exit with 0 exit code on error

The pexecute interface returns a status value from waitpid from the driver 
executed with -V, and gcc.c then passes this to exit () without passing it 
through WEXITSTATUS or similar first, so it calls exit (256) which loses 
the error.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40251

[Bug driver/40251] Using the -V option makes the compiler to exit with 0 exit code on error

[ramana at gcc dot gnu dot org]

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ramana at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-06-11 14:06:00
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40251

[Bug driver/40251] Using the -V option makes the compiler to exit with 0 exit code on error

[jsm28 at gcc dot gnu dot org]

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------- Comment #3 from jsm28 at gcc dot gnu dot org  2010-05-22 17:54 -------
-b and -V were removed:

2010-04-08  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR 42485
        * doc/invoke.texi (-b,-V): Delete.
        * doc/tm.texi: Do not mention -b.
        * gcc.c (display_help): Delete -b and -V.
        (process_command): Delete -b and -V.
        * gcc.h (DEFAULT_SWITCH_TAKES_ARG): Delete -b and -V.


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jsm28 at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WONTFIX


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40251

[Bug driver/40251] Using the -V option makes the compiler to exit with 0 exit code on error

[jsm28 at gcc dot gnu dot org]

------- Comment #4 from jsm28 at gcc dot gnu dot org  2010-07-24 16:09 -------
*** Bug 44990 has been marked as a duplicate of this bug. ***


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jsm28 at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |parviz_fariborz at mentor
                   |                            |dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40251