Author: jhb
Date: Thu May 17 19:01:13 2012
New Revision: 235559
URL: http://svn.freebsd.org/changeset/base/235559
Log:
Partial MFC of 232520:
For amd64 PT_GETXSTATE and PT_SETXSTATE have been redefined to match the
i386 values. The old values are still supported but should no longer be
used.
Modified:
stable/9/sys/amd64/amd64/ptrace_machdep.c
stable/9/sys/amd64/include/ptrace.h
Modified: stable/9/sys/amd64/amd64/ptrace_machdep.c
==============================================================================
--- stable/9/sys/amd64/amd64/ptrace_machdep.c Thu May 17 18:40:27 2012
(r235558)
+++ stable/9/sys/amd64/amd64/ptrace_machdep.c Thu May 17 19:01:13 2012
(r235559)
@@ -126,6 +126,12 @@ cpu_ptrace(struct thread *td, int req, v
return (cpu32_ptrace(td, req, addr, data));
#endif
+ /* Support old values of PT_GETXSTATE and PT_SETXSTATE. */
+ if (req == PT_FIRSTMACH + 0)
+ req = PT_GETXSTATE;
+ if (req == PT_FIRSTMACH + 1)
+ req = PT_SETXSTATE;
+
switch (req) {
case PT_GETXSTATE:
case PT_SETXSTATE:
Modified: stable/9/sys/amd64/include/ptrace.h
==============================================================================
--- stable/9/sys/amd64/include/ptrace.h Thu May 17 18:40:27 2012
(r235558)
+++ stable/9/sys/amd64/include/ptrace.h Thu May 17 19:01:13 2012
(r235559)
@@ -35,7 +35,14 @@
#define __HAVE_PTRACE_MACHDEP
-#define PT_GETXSTATE (PT_FIRSTMACH + 0)
-#define PT_SETXSTATE (PT_FIRSTMACH + 1)
+/*
+ * On amd64 (PT_FIRSTMACH + 0) and (PT_FIRSTMACH + 1) are old values for
+ * PT_GETXSTATE and PT_SETXSTATE. They should not be (re)used.
+ */
+
+#define PT_GETXMMREGS (PT_FIRSTMACH + 0) /* i386 only */
+#define PT_SETXMMREGS (PT_FIRSTMACH + 1) /* i386 only */
+#define PT_GETXSTATE (PT_FIRSTMACH + 2)
+#define PT_SETXSTATE (PT_FIRSTMACH + 3)
#endif
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