[src/trunk]: src/external/gpl3/gdb/dist/gdb Undo previous, it was wrong:

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/27e298a137de
branches:  trunk
changeset: 778314:27e298a137de
user:      christos <christos%NetBSD.org@localhost>
date:      Wed Mar 21 21:25:38 2012 +0000

description:
Undo previous, it was wrong:
The problem has to do with the threaded initialization.
After we take the first breakpoint and we enter single step mode,
we set trap_expected = 1 in the thread_info structure for main <pid,0,0>.
After the threads initialize, the main thread becomes <pid,1,0>, and so
we get a new thread_info struct with trap_expected = 0, and so we break.

diffstat:

 external/gpl3/gdb/dist/gdb/inf-ptrace.c |  7 -------
 1 files changed, 0 insertions(+), 7 deletions(-)

diffs (24 lines):

diff -r c1538b78ec98 -r 27e298a137de external/gpl3/gdb/dist/gdb/inf-ptrace.c
--- a/external/gpl3/gdb/dist/gdb/inf-ptrace.c   Wed Mar 21 20:07:52 2012 +0000
+++ b/external/gpl3/gdb/dist/gdb/inf-ptrace.c   Wed Mar 21 21:25:38 2012 +0000
@@ -358,12 +358,6 @@
   else
     request = PT_CONTINUE;
 
-#ifdef notyet
-  /*
-   * Disable support for kernel PT_STEP. This code has no hope of working
-   * since this is the only place where PT_STEP is set, and it is only turned
-   * on!
-   */
   if (step)
     {
       /* If this system does not support PT_STEP, a higher level
@@ -374,7 +368,6 @@
       request = PT_STEP;
       sig = 0;
     } else
-#endif
       sig = target_signal_to_host (signal);
 
   /* An address of (PTRACE_TYPE_ARG3)1 tells ptrace to continue from