diff options
Diffstat (limited to 'gdb/inf-ptrace.c')
| -rw-r--r-- | gdb/inf-ptrace.c | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/gdb/inf-ptrace.c b/gdb/inf-ptrace.c index ba9d8a8..82dfc34 100644 --- a/gdb/inf-ptrace.c +++ b/gdb/inf-ptrace.c @@ -121,10 +121,23 @@ inf_ptrace_create_inferior (struct target_ops *ops, { int pid; + /* Do not change either targets above or the same target if already present. + The reason is the target stack is shared across multiple inferiors. */ + int ops_already_pushed = target_is_pushed (ops); + struct cleanup *back_to; + + if (! ops_already_pushed) + { + /* Clear possible core file with its process_stratum. */ + push_target (ops); + back_to = make_cleanup_unpush_target (ops); + } + pid = fork_inferior (exec_file, allargs, env, inf_ptrace_me, NULL, NULL, NULL); - push_target (ops); + if (! ops_already_pushed) + discard_cleanups (back_to); /* On some targets, there must be some explicit synchronization between the parent and child processes after the debugger @@ -189,11 +202,24 @@ inf_ptrace_attach (struct target_ops *ops, char *args, int from_tty) pid_t pid; struct inferior *inf; + /* Do not change either targets above or the same target if already present. + The reason is the target stack is shared across multiple inferiors. */ + int ops_already_pushed = target_is_pushed (ops); + struct cleanup *back_to; + pid = parse_pid_to_attach (args); if (pid == getpid ()) /* Trying to masturbate? */ error (_("I refuse to debug myself!")); + if (! ops_already_pushed) + { + /* target_pid_to_str already uses the target. Also clear possible core + file with its process_stratum. */ + push_target (ops); + back_to = make_cleanup_unpush_target (ops); + } + if (from_tty) { exec_file = get_exec_file (0); @@ -226,7 +252,8 @@ inf_ptrace_attach (struct target_ops *ops, char *args, int from_tty) target, it should decorate the ptid later with more info. */ add_thread_silent (inferior_ptid); - push_target(ops); + if (! ops_already_pushed) + discard_cleanups (back_to); } #ifdef PT_GET_PROCESS_STATE |