Created attachment 1493891 [details]
Sample code bitmapSort.c to reproduce the issue with

Description of problem:
Setting break on a binary loaded in gdb, which has been compiled from a file which is a symbolic link to a file with different name throws below error:

(gdb) b 15
No line 15 in the current file.
Make breakpoint pending on future shared library load? (y or [n])

Pressing "y" at this point, before punching run command, has no effect and process exits through it normally. Instead specifying breakpoint in the format <file name>:<linenum> works as expected: 

(gdb) b bitmapS.c:15
Breakpoint 2 at 0x40088c: file bitmapS.c, line 15.


Version-Release number of selected component (if applicable):
gdb-7.6.1-110.el7

How reproducible:
Always

Steps to Reproduce:
1. move the attached reproducer program bitmapSort.c to /tmp
   # mv bitmapSort.c /tmp
2. Create a symbolic link to /tmp/bitmapSort.c with a different name
   # cd
   # ln -s /tmp/bitmapSort.c bitmapS.c
3. Compile bitmapS.c to produce a binary and load in gdb and try to set breakpoint specifying just line number: 
   # gcc -o bitmapS -lm -g bitmapS.c
   # gdb ./bitmapS
   (gdb) b 15

Actual results:
Breakpoint is not set just with <linenum> format, whereas setting breakpoing in <filename>:<linume> does work as expected.

Expected results:
Breakpoint with just <linenum> format should work.

Additional info:
Same was working fine in RHEL-6.