[PATCH] solib-svr4.c: Remove old SCO-related code.

Pedro Alves
2012-12-06T17:37:06Z

Support for SCO has been removed in 2007, by:
http://sourceware.org/ml/gdb-patches/2007-03/msg00327.html

But this bit in svr4_solib_create_inferior_hook remains left behind.

Let me know if I missed anything, like a supported non-SCO target actually
defining _SCO_DS too, though that sounds very unlikely to me.

I notice that unixware support has also been dropped in that same 2007
change, so it seems like all the #ifdef UNIXWARE checks in procfs.c could
be removed too, along with the "*-*-unixware*" check in configure.ac.

2012-12-06 Pedro Alves <palves@redhat.com>

* solib-svr4.c (svr4_solib_create_inferior_hook) [_SCO_DS]: Remove
dead SCO code, and adjust function description comment.
---
gdb/solib-svr4.c | 41 +----------------------------------------
1 file changed, 1 insertion(+), 40 deletions(-)

diff --git a/gdb/solib-svr4.c b/gdb/solib-svr4.c
index 02e45a3..316c1b7 100644
--- a/gdb/solib-svr4.c
+++ b/gdb/solib-svr4.c
@@ -2212,25 +2212,11 @@ svr4_relocate_main_executable (void)

This function is responsible for discovering those names and
addresses, and saving sufficient information about them to allow
- their symbols to be read at a later time.
-
- FIXME
-
- Between enable_break() and disable_break(), this code does not
- properly handle hitting breakpoints which the user might have
- set in the startup code or in the dynamic linker itself. Proper
- handling will probably have to wait until the implementation is
- changed to use the "breakpoint handler function" method.
-
- Also, what if child has exit()ed? Must exit loop somehow. */
+ their symbols to be read at a later time. */

static void
svr4_solib_create_inferior_hook (int from_tty)
{
-#if defined(_SCO_DS)
- struct inferior *inf;
- struct thread_info *tp;
-#endif /* defined(_SCO_DS) */
struct svr4_info *info;

info = get_svr4_info ();
@@ -2248,31 +2234,6 @@ svr4_solib_create_inferior_hook (int from_tty)

if (!enable_break (info, from_tty))
return;
-
-#if defined(_SCO_DS)
- /* SCO needs the loop below, other systems should be using the
- special shared library breakpoints and the shared library breakpoint
- service routine.
-
- Now run the target. It will eventually hit the breakpoint, at
- which point all of the libraries will have been mapped in and we
- can go groveling around in the dynamic linker structures to find
- out what we need to know about them. */
-
- inf = current_inferior ();
- tp = inferior_thread ();
-
- clear_proceed_status ();
- inf->control.stop_soon = STOP_QUIETLY;
- tp->suspend.stop_signal = GDB_SIGNAL_0;
- do
- {
- target_resume (pid_to_ptid (-1), 0, tp->suspend.stop_signal);
- wait_for_inferior ();
- }
- while (tp->suspend.stop_signal != GDB_SIGNAL_TRAP);
- inf->control.stop_soon = NO_STOP_QUIETLY;
-#endif /* defined(_SCO_DS) */
}

static void