[Bug driver/46673] New: Misleading error message when cc1 has no exec permission

[Bug driver/46673] New: Misleading error message when cc1 has no exec permission

[dirk.heinrichs.ext at nsn dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46673

           Summary: Misleading error message when cc1 has no exec
                    permission
           Product: gcc
           Version: 4.5.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: driver
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dirk.heinrichs.ext@nsn.com


Hi,

if, for whatever reason, cc1 (and maybe other programs called by the driver),
doesn't have execute permissions, the resulting error message is misleading:

% gcc -o hello hello.c
gcc: error trying to exec 'cc1': execvp: No such file or directory

but:

% ll /opt/gcc/libexec/gcc/i686-pc-linux-gnu/4.5.1/cc1                           
-rw-r--r-- 1 dheinric etrsw 37286235 2010-11-26 10:56
/opt/gcc/libexec/gcc/i686-pc-linux-gnu/4.5.1/cc1

So I guess the better error message would be: "Permission denied".

% chmod +x /opt/gcc/libexec/gcc/i686-pc-linux-gnu/4.5.1/cc1
% gcc -o hello hello.c
% echo $?
0
% LANG="" gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/opt/gcc/libexec/gcc/i686-pc-linux-gnu/4.5.1/lto-wrapper
Target: i686-pc-linux-gnu
Configured with: ../gcc-4.5.1/configure --prefix=/opt/gcc
Thread model: posix
gcc version 4.5.1 (GCC)