Bug 705116

Description of problem:

After doing a profiling run of an instrumented binary, a *.gcda file is generated.  When rebuilding with --profile-use gcc44 will say that a *.cgda file owned by another user (but with readable permissions) "does not exist" even though the file is readable.

Version-Release number of selected component (if applicable):

gcc44-4.4.4-13.el5 (x86)

How reproducible:

Always

Steps to Reproduce:
1.  As User A use gcc44 to create *.gcda file
2.  As User B attempt to read *.gcda with gcc44's --profile-use
3.
  
Actual results:

gcc44 complains that a file that is clearly present and readable is "not found"

Expected results:

Given appropriate read permissions, *.gcda files should be readable by gcc44.

Additional info:


[steve@nemesis ~]$ vi /tmp/testapp.c
[steve@nemesis ~]$ gcc44 --profile-dir=/tmp --profile-generate -O2 -o /tmp/testapp /tmp/testapp.c
[steve@nemesis ~]$ /tmp/testapp
got here
[steve@nemesis ~]$ ll /tmp/testapp*
-rwxr-xr-x 1 steve users 15984 May 16 13:12 /tmp/testapp
-rw-r--r-- 1 steve users    98 May 16 13:12 /tmp/testapp.c
-rw-r--r-- 1 steve users   144 May 16 13:13 /tmp/testapp.gcda
[steve@nemesis ~]$ rm -f /tmp/testapp
[steve@nemesis ~]$ su - nancy

Password:
[nancy@nemesis ~]$ gcc44 --profile-dir=/tmp --profile-use -O2 -o /tmp/testapp /tmp/testapp.c
/tmp/testapp.c: In function âmainâ:
/tmp/testapp.c:8: note: file /tmp/testapp.gcda not found, execution counts estimated
[nancy@nemesis ~]$ file /tmp/testapp.gcda
/tmp/testapp.gcda: data

[nancy@nemesis ~]$ rm -f /tmp/testapp
[nancy@nemesis ~]$ exit
[steve@nemesis ~]$ gcc44 --profile-dir=/tmp --profile-use -O2 -o /tmp/testapp /tmp/testapp.c
[steve@nemesis ~]$ ll /tmp/testapp*
-rwxr-xr-x 1 steve users 4951 May 16 13:18 /tmp/testapp
-rw-r--r-- 1 steve users   98 May 16 13:12 /tmp/testapp.c
-rw-r--r-- 1 steve users  144 May 16 13:13 /tmp/testapp.gcda