[Bug breakpoints/19546] New: gdb crash calling exec in the inferior

[palves at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=19546

            Bug ID: 19546
           Summary: gdb crash calling exec in the inferior
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: breakpoints
          Assignee: unassigned at sourceware dot org
          Reporter: palves at redhat dot com
  Target Milestone: ---

Current GDB master crashes if you call "exec" in the inferior.  

 $ gdb ./testsuite/gdb.base/foll-exec 
 GNU gdb (GDB) 7.10.50.20160201-git
 (gdb) start
 Temporary breakpoint 1 at 0x4006b8: file
/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.base/foll-exec.c, line 27.
 Starting program: /home/pedro/gdb/mygit/build/gdb/testsuite/gdb.base/foll-exec 

 Temporary breakpoint 1, main () at
/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.base/foll-exec.c:27
 27        int local_j = global_i + 1;
 (gdb) p execlp ("/bin/bash", "/bin/bash", (char *) 0)
 Segmentation fault (core dumped)

7.10 works as expected.

Looks like a regression of the explicit locations work.

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