1 files changed, 102 insertions, 0 deletions
diff --git a/cpukit/include/rtems/rtl/rtl-trace.h b/cpukit/include/rtems/rtl/rtl-trace.h
new file mode 100644
index 0000000000..4b93c8c91c
--- /dev/null
+++ b/cpukit/include/rtems/rtl/rtl-trace.h
@@ -0,0 +1,102 @@
+/*
+ *  COPYRIGHT (c) 2012-2014 Chris Johns <chrisj@rtems.org>
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+/**
+ * @file
+ *
+ * @ingroup rtems_rtl
+ *
+ * @brief RTEMS Run-Time Linker ELF Trace Support.
+ */
+
+#if !defined (_RTEMS_RTL_TRACE_H_)
+#define _RTEMS_RTL_TRACE_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#include <stdbool.h>
+#include <stdint.h>
+
+/**
+ * Set to 1 to build trace support in to the RTL code.
+ */
+#define RTEMS_RTL_TRACE 1
+
+/**
+ * The type of the mask.
+ */
+typedef uint32_t rtems_rtl_trace_mask;
+
+/**
+ * List of tracing bits for the various parts of the link editor.
+ */
+#define RTEMS_RTL_TRACE_DETAIL                 (1UL << 0)
+#define RTEMS_RTL_TRACE_WARNING                (1UL << 1)
+#define RTEMS_RTL_TRACE_LOAD                   (1UL << 2)
+#define RTEMS_RTL_TRACE_UNLOAD                 (1UL << 3)
+#define RTEMS_RTL_TRACE_SECTION                (1UL << 4)
+#define RTEMS_RTL_TRACE_SYMBOL                 (1UL << 5)
+#define RTEMS_RTL_TRACE_RELOC                  (1UL << 6)
+#define RTEMS_RTL_TRACE_GLOBAL_SYM             (1UL << 7)
+#define RTEMS_RTL_TRACE_LOAD_SECT              (1UL << 8)
+#define RTEMS_RTL_TRACE_ALLOCATOR              (1UL << 9)
+#define RTEMS_RTL_TRACE_UNRESOLVED             (1UL << 10)
+#define RTEMS_RTL_TRACE_CACHE                  (1UL << 11)
+#define RTEMS_RTL_TRACE_ALL                    (0xffffffffUL & ~(RTEMS_RTL_TRACE_CACHE))
+
+/**
+ * Call to check if this part is bring traced. If RTEMS_RTL_TRACE is defined to
+ * 0 the code is dead code elminiated when built with -Os, -O2, or higher.
+ *
+ * @param mask The part of the API to trace.
+ * @retval true Tracing is active for the mask.
+ * @retval false Do not trace.
+ */
+#if RTEMS_RTL_TRACE
+bool rtems_rtl_trace (rtems_rtl_trace_mask mask);
+#else
+#define rtems_rtl_trace(_m) (0)
+#endif
+
+/**
+ * Set the mask.
+ *
+ * @param mask The mask bits to set.
+ * @return The previous mask.
+ */
+#if RTEMS_RTL_TRACE
+rtems_rtl_trace_mask rtems_rtl_trace_set_mask (rtems_rtl_trace_mask mask);
+#else
+#define rtems_rtl_trace_set_mask(_m)
+#endif
+
+/**
+ * Clear the mask.
+ *
+ * @param mask The mask bits to clear.
+ * @return The previous mask.
+ */
+#if RTEMS_RTL_TRACE
+rtems_rtl_trace_mask rtems_rtl_trace_clear_mask (rtems_rtl_trace_mask mask);
+#else
+#define rtems_rtl_trace_clear_mask(_m)
+#endif
+
+/**
+ * Add shell trace shell command.
+ */
+#if RTEMS_RTL_TRACE
+int rtems_rtl_trace_shell_command (int argc, char *argv[]);
+#endif
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif