Constify target_pid_to_exec_file

This changes target_pid_to_exec_file and target_ops::pid_to_exec_file
to return a "const char *".  I couldn't build many of these targets,
but did examine the code by hand -- also, as this only affects the
return type, it's normally pretty safe.  This brings gdb and gdbserver
a bit closer, and allows for the removal of a const_cast as well.

1 files changed, 1 insertions, 1 deletions

diff --git a/gdb/exec.c b/gdb/exec.c
index 38540c0..40c89d5 100644
--- a/gdb/exec.c
+++ b/gdb/exec.c
@@ -314,7 +314,7 @@ validate_exec_file (int from_tty)
 void
 exec_file_locate_attach (int pid, int defer_bp_reset, int from_tty)
 {
-  char *exec_file_target;
+  const char *exec_file_target;
   symfile_add_flags add_flags = 0;
 
   /* Do nothing if we already have an executable filename.  */