sim: standardize sim_create_inferior handling of argv a bit more

For targets that process argv in sim_create_inferior, improve the code:
- provide more details in the comment
- make the check for when to re-init more robust
- clean out legacy sim_copy_argv code

This will be cleaned up more in the future when we have a common inferior
creation function, but at least help new ports get it right until then.

1 files changed, 5 insertions, 1 deletions

diff --git a/sim/ft32/interp.c b/sim/ft32/interp.c
index e2762b8..63ce77b 100644
--- a/sim/ft32/interp.c
+++ b/sim/ft32/interp.c
@@ -877,7 +877,11 @@ sim_create_inferior (SIM_DESC sd,
   else
     addr = 0;
 
-  if (STATE_OPEN_KIND (sd) == SIM_OPEN_DEBUG)
+  /* Standalone mode (i.e. `run`) will take care of the argv for us in
+     sim_open() -> sim_parse_args().  But in debug mode (i.e. 'target sim'
+     with `gdb`), we need to handle it because the user can change the
+     argv on the fly via gdb's 'run'.  */
+  if (STATE_PROG_ARGV (sd) != argv)
     {
       freeargv (STATE_PROG_ARGV (sd));
       STATE_PROG_ARGV (sd) = dupargv (argv);