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* gdbthread.h (currently_stepping): New declaration.
	* infrun.c (currently_stepping): Remove the forward declaration.
	(currently_stepping): Make it global.
	* linux-nat.c (resume_callback) <lp->stopped && lp->status == 0>: New
	variables tp and step, initialized them.  Pass STEP to to_resume.
	Print also possibly "PTRACE_SINGLESTEP" if STEP.  Initialize LP->STEP.
	* remote.c (currently_stepping_callback): New.
	(remote_vcont_resume)
	<ptid_equal (ptid, minus_one_ptid) || ptid_is_pid (ptid)>:
	New variable tp.  Call currently_stepping_callback and step such
	thread.

gdb/testsuite/
	* gdb.threads/sigstep-threads.exp: New file.
	* gdb.threads/sigstep-threads.c: New file.
This commit is contained in:
Jan Kratochvil 2010-10-17 18:24:47 +00:00
parent c1e5657246
commit 8aeb23f364
8 changed files with 175 additions and 7 deletions
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14
gdb/linux-nat.c
View file

@ -1820,20 +1820,26 @@ resume_callback (struct lwp_info *lp, void *data)
}
else if (lp->stopped && lp->status == 0)
{
struct thread_info *tp = find_thread_ptid (lp->ptid);
/* lp->step may already contain a stale value. */
int step = tp ? currently_stepping (tp) : 0;
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"RC: PTRACE_CONT %s, 0, 0 (resuming sibling)\n",
"RC: %s %s, 0, 0 (resuming sibling)\n",
step ? "PTRACE_SINGLESTEP" : "PTRACE_CONT",
target_pid_to_str (lp->ptid));
linux_ops->to_resume (linux_ops,
pid_to_ptid (GET_LWP (lp->ptid)),
0, TARGET_SIGNAL_0);
step, TARGET_SIGNAL_0);
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"RC: PTRACE_CONT %s, 0, 0 (resume sibling)\n",
"RC: %s %s, 0, 0 (resume sibling)\n",
step ? "PTRACE_SINGLESTEP" : "PTRACE_CONT",
target_pid_to_str (lp->ptid));
lp->stopped = 0;
lp->step = 0;
lp->step = step;
memset (&lp->siginfo, 0, sizeof (lp->siginfo));
lp->stopped_by_watchpoint = 0;
}