diff options
Diffstat (limited to 'exec/exec.c')
| -rw-r--r-- | exec/exec.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/exec/exec.c b/exec/exec.c index 1655aeaa..6a78f89f 100644 --- a/exec/exec.c +++ b/exec/exec.c @@ -1,5 +1,5 @@ /* GNU Hurd standard exec server. - Copyright (C) 1992, 93, 94, 95, 96, 98 Free Software Foundation, Inc. + Copyright (C) 1992,93,94,95,96,98,99 Free Software Foundation, Inc. Written by Roland McGrath. Can exec ELF format directly. @@ -1627,6 +1627,29 @@ do_exec (file_t file, finish (&interp, 1); finish (&e, !e.error); + if (!e.error && (flags & EXEC_SIGTRAP)) /* XXX && !secure ? */ + { + /* This is a "traced" exec, i.e. the new task is to be debugged. The + caller has requested that the new process stop with SIGTRAP before + it starts. Since the process has no signal thread yet to do its + own POSIX signal mechanics, we simulate it by notifying the proc + server of the signal and leaving the initial thread with a suspend + count of one, as it would be if the process were stopped by a + POSIX signal. */ + mach_port_t proc; + if (boot->nports > INIT_PORT_PROC) + proc = boot->portarray[INIT_PORT_PROC]; + else + /* Ask the proc server for the proc port for this task. */ + e.error = proc_task2proc (procserver, newtask, &proc); + if (!e.error) + /* Tell the proc server that the process has stopped with the + SIGTRAP signal. Don't bother to check for errors from the RPC + here; for non-secure execs PROC may be the user's own proc + server its confusion shouldn't make the exec fail. */ + proc_mark_stop (proc, SIGTRAP, 0); + } + if (boot) { /* Release the original reference. Now there is only one @@ -1650,7 +1673,8 @@ do_exec (file_t file, if (thread != MACH_PORT_NULL) { - thread_resume (thread); + if (!e.error && !(flags & EXEC_SIGTRAP)) + thread_resume (thread); mach_port_deallocate (mach_task_self (), thread); } |