1 files changed, 79 insertions, 0 deletions
diff --git a/scripts/gdb/linux/constants.py.in b/scripts/gdb/linux/constants.py.in
new file mode 100644
index 000000000..08f0587d1
--- /dev/null
+++ b/scripts/gdb/linux/constants.py.in
@@ -0,0 +1,79 @@
+/*
+ * gdb helper commands and functions for Linux kernel debugging
+ *
+ *  Kernel constants derived from include files.
+ *
+ * Copyright (c) 2016 Linaro Ltd
+ *
+ * Authors:
+ *  Kieran Bingham <kieran.bingham@linaro.org>
+ *
+ * This work is licensed under the terms of the GNU GPL version 2.
+ *
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/fs.h>
+#include <linux/hrtimer.h>
+#include <linux/mount.h>
+#include <linux/of_fdt.h>
+#include <linux/threads.h>
+
+/* We need to stringify expanded macros so that they can be parsed */
+
+#define STRING(x) #x
+#define XSTRING(x) STRING(x)
+
+#define LX_VALUE(x) LX_##x = x
+#define LX_GDBPARSED(x) LX_##x = gdb.parse_and_eval(XSTRING(x))
+
+/*
+ * IS_ENABLED generates (a || b) which is not compatible with python
+ * We can only switch on configuration items we know are available
+ * Therefore - IS_BUILTIN() is more appropriate
+ */
+#define LX_CONFIG(x) LX_##x = IS_BUILTIN(x)
+
+/* The build system will take care of deleting everything above this marker */
+<!-- end-c-headers -->
+
+import gdb
+
+LX_CONFIG(CONFIG_DEBUG_INFO_REDUCED)
+
+/* linux/clk-provider.h */
+if IS_BUILTIN(CONFIG_COMMON_CLK):
+    LX_GDBPARSED(CLK_GET_RATE_NOCACHE)
+
+/* linux/fs.h */
+LX_VALUE(SB_RDONLY)
+LX_VALUE(SB_SYNCHRONOUS)
+LX_VALUE(SB_MANDLOCK)
+LX_VALUE(SB_DIRSYNC)
+LX_VALUE(SB_NOATIME)
+LX_VALUE(SB_NODIRATIME)
+
+/* linux/htimer.h */
+LX_GDBPARSED(hrtimer_resolution)
+
+/* linux/mount.h */
+LX_VALUE(MNT_NOSUID)
+LX_VALUE(MNT_NODEV)
+LX_VALUE(MNT_NOEXEC)
+LX_VALUE(MNT_NOATIME)
+LX_VALUE(MNT_NODIRATIME)
+LX_VALUE(MNT_RELATIME)
+
+/* linux/threads.h */
+LX_VALUE(NR_CPUS)
+
+/* linux/of_fdt.h> */
+LX_VALUE(OF_DT_HEADER)
+
+/* Kernel Configs */
+LX_CONFIG(CONFIG_GENERIC_CLOCKEVENTS)
+LX_CONFIG(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
+LX_CONFIG(CONFIG_HIGH_RES_TIMERS)
+LX_CONFIG(CONFIG_NR_CPUS)
+LX_CONFIG(CONFIG_OF)
+LX_CONFIG(CONFIG_TICK_ONESHOT)