[PATCH v3 26/44] gdb: load solibs if the target does not have the notion of an exec file

[Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>]

In the 'post_create_inferior' function, the code block that calls the
solib ops' post-create-inferior hook function is guarded by a
null-check on exec_bfd.  This prevents loading solibs of an inferior
if it does not have an exec_bfd.  However, such a scenario could be
possible with relatively newer targets, such as GPUs, where an
executable does not exist but the GPU kernels are treated as
libraries.

Add a check for this case.
---
 gdb/infcmd.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/gdb/infcmd.c b/gdb/infcmd.c
index 1d5bed1bb17015271430255d0d6e288d0edfc791..bab6fe0db1329c119d94e13e12030662f4b15f1b 100644
--- a/gdb/infcmd.c
+++ b/gdb/infcmd.c
@@ -262,7 +262,15 @@ post_create_inferior (int from_tty, bool set_pspace_solib_ops)
     current_program_space->set_solib_ops
       (gdbarch_make_solib_ops (current_inferior ()->arch ()));
 
-  if (current_program_space->exec_bfd ())
+  /* Some targets (e.g.  GPUs) may still have solibs although they do
+     not have the notion of an exec file.  */
+  const char *exec_file
+    = target_pid_to_exec_file (current_inferior ()->pid);
+  bool target_may_have_solibs
+    = (exec_file != nullptr && *exec_file == '\0');
+
+  if (current_program_space->exec_bfd () != nullptr
+      || target_may_have_solibs)
     {
       const unsigned solib_add_generation
 	= current_program_space->solib_add_generation;

-- 
2.34.1

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