Remove make preinstall

A speciality of the RTEMS build system was the make preinstall step.  It
copied header files from arbitrary locations into the build tree.  The
header files were included via the -Bsome/build/tree/path GCC command
line option.

This has at least seven problems:

* The make preinstall step itself needs time and disk space.

* Errors in header files show up in the build tree copy.  This makes it
  hard for editors to open the right file to fix the error.

* There is no clear relationship between source and build tree header
  files.  This makes an audit of the build process difficult.

* The visibility of all header files in the build tree makes it
  difficult to enforce API barriers.  For example it is discouraged to
  use BSP-specifics in the cpukit.

* An introduction of a new build system is difficult.

* Include paths specified by the -B option are system headers.  This
  may suppress warnings.

* The parallel build had sporadic failures on some hosts.

This patch removes the make preinstall step.   All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc.  Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.

The new cpukit include directories are:

* cpukit/include

* cpukit/score/cpu/@RTEMS_CPU@/include

* cpukit/libnetworking

The new BSP include directories are:

* bsps/include

* bsps/@RTEMS_CPU@/include

* bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include

There are build tree include directories for generated files.

The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.

The "bootstrap -p" option was removed.  The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.

Update #3254.

1 files changed, 323 insertions, 0 deletions

diff --git a/cpukit/include/rtems/score/timestamp.h b/cpukit/include/rtems/score/timestamp.h
new file mode 100644
index 0000000000..6fc17ced9c
--- /dev/null
+++ b/cpukit/include/rtems/score/timestamp.h
@@ -0,0 +1,323 @@
+/**
+ *  @file  rtems/score/timestamp.h
+ *
+ *  @brief Helpers for Manipulating Timestamps
+ *
+ *  This include file contains helpers for manipulating timestamps.
+ */
+
+/*
+ *  COPYRIGHT (c) 1989-2009.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  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.
+ */
+
+#ifndef _RTEMS_SCORE_TIMESTAMP_H
+#define _RTEMS_SCORE_TIMESTAMP_H
+
+/**
+ *  @defgroup SuperCoreTimeStamp Score Timestamp
+ *
+ *  @ingroup Score
+ *
+ *  This handler encapsulates functionality related to manipulating
+ *  SuperCore Timestamps.  SuperCore Timestamps may be used to
+ *  represent time of day, uptime, or intervals.
+ *
+ *  The key attribute of the SuperCore Timestamp handler is that it
+ *  is a completely opaque handler.  There can be multiple implementations
+ *  of the required functionality and with a recompile, RTEMS can use
+ *  any implementation.  It is intended to be a simple wrapper.
+ *
+ *  This handler can be implemented as either struct timespec or
+ *  unsigned64 bit numbers.  The use of a wrapper class allows the
+ *  the implementation of timestamps to change on a per architecture
+ *  basis.  This is an important option as the performance of this
+ *  handler is critical.
+ */
+/**@{*/
+
+#include <sys/time.h>
+
+#include <rtems/score/basedefs.h>
+#include <rtems/score/timespec.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ *   Define the Timestamp control type.
+ */
+typedef sbintime_t Timestamp_Control;
+
+/**
+ *  @brief Set timestamp to specified seconds and nanoseconds.
+ *
+ *  This method sets the timestamp to the specified @a _seconds and @a _nanoseconds
+ *  value.
+ *
+ *  @param[in] _time points to the timestamp instance to validate.
+ *  @param[in] _seconds is the seconds portion of the timestamp
+ *  @param[in] _nanoseconds is the nanoseconds portion of the timestamp
+ */
+RTEMS_INLINE_ROUTINE void _Timestamp_Set(
+  Timestamp_Control *_time,
+  time_t             _seconds,
+  long               _nanoseconds
+)
+{
+  struct timespec _ts;
+
+  _ts.tv_sec = _seconds;
+  _ts.tv_nsec = _nanoseconds;
+
+  *_time = tstosbt(_ts);
+}
+
+/**
+ *  @brief Sets the timestamp to zero.
+ *
+ *  This method sets the timestamp to zero.
+ *  value.
+ *
+ *  @param[in] _time points to the timestamp instance to zero.
+ */
+
+RTEMS_INLINE_ROUTINE void _Timestamp_Set_to_zero(
+  Timestamp_Control *_time
+)
+{
+  *_time = 0;
+}
+
+/**
+ *  @brief Less than operator for timestamps.
+ *
+ *  This method is the less than operator for timestamps.
+ *
+ *  @param[in] _lhs points to the left hand side timestamp
+ *  @param[in] _rhs points to the right hand side timestamp
+ *
+ *  @retval This method returns true if @a _lhs is less than the @a _rhs and
+ *          false otherwise.
+ */
+
+RTEMS_INLINE_ROUTINE bool _Timestamp_Less_than(
+  const Timestamp_Control *_lhs,
+  const Timestamp_Control *_rhs
+)
+{
+  return *_lhs < *_rhs;
+}
+
+/**
+ *  @brief Greater than operator for timestamps.
+ *
+ *  This method is the greater than operator for timestamps.
+ *
+ *  @param[in] _lhs points to the left hand side timestamp
+ *  @param[in] _rhs points to the right hand side timestamp
+ *
+ *  @retval This method returns true if @a _lhs is greater than the @a _rhs and
+ *          false otherwise.
+ */
+
+RTEMS_INLINE_ROUTINE bool _Timestamp_Greater_than(
+  const Timestamp_Control *_lhs,
+  const Timestamp_Control *_rhs
+)
+{
+  return *_lhs > *_rhs;
+}
+
+/**
+ *  @brief Equal to than operator for timestamps.
+ *
+ *  This method is the is equal to than operator for timestamps.
+ *
+ *  @param[in] _lhs points to the left hand side timestamp
+ *  @param[in] _rhs points to the right hand side timestamp
+ *
+ *  @retval This method returns true if @a _lhs is equal to  @a _rhs and
+ *          false otherwise.
+ */
+
+RTEMS_INLINE_ROUTINE bool _Timestamp_Equal_to(
+  const Timestamp_Control *_lhs,
+  const Timestamp_Control *_rhs
+)
+{
+  return *_lhs == *_rhs;
+}
+
+/**
+ *  @brief Adds two timestamps.
+ *
+ *  This routine adds two timestamps.  The second argument is added
+ *  to the first.
+ *
+ *  @param[in] _time points to the base time to be added to
+ *  @param[in] _add points to the timestamp to add to the first argument
+ */
+RTEMS_INLINE_ROUTINE void _Timestamp_Add_to(
+  Timestamp_Control *_time,
+  const Timestamp_Control *_add
+)
+{
+  *_time += *_add;
+}
+
+/**
+ *  @brief Subtracts two timestamps.
+ *
+ *  This routine subtracts two timestamps.  @a result is set to
+ *  @a end - @a start.
+ *
+ *  @param[in] _start points to the starting time
+ *  @param[in] _end points to the ending time
+ *  @param[in] _result points to the difference between
+ *             starting and ending time.
+ *
+ *  @retval This method fills in @a _result.
+ */
+RTEMS_INLINE_ROUTINE void _Timestamp_Subtract(
+  const Timestamp_Control *_start,
+  const Timestamp_Control *_end,
+  Timestamp_Control       *_result
+)
+{
+  *_result = *_end - *_start;
+}
+
+/**
+ *  @brief Divides a timestamp by another timestamp.
+ *
+ *  This routine divides a timestamp by another timestamp.  The
+ *  intended use is for calculating percentages to three decimal points.
+ *
+ *  @param[in] _lhs points to the left hand number
+ *  @param[in] _rhs points to the right hand number
+ *  @param[in] _ival_percentage points to the integer portion of the average
+ *  @param[in] _fval_percentage points to the thousandths of percentage
+ *
+ *  @retval This method fills in @a result.
+ */
+RTEMS_INLINE_ROUTINE void _Timestamp_Divide(
+  const Timestamp_Control *_lhs,
+  const Timestamp_Control *_rhs,
+  uint32_t                *_ival_percentage,
+  uint32_t                *_fval_percentage
+)
+{
+  struct timespec _ts_left;
+  struct timespec _ts_right;
+
+  _ts_left = sbttots( *_lhs );
+  _ts_right = sbttots( *_rhs );
+
+  _Timespec_Divide(
+    &_ts_left,
+    &_ts_right,
+    _ival_percentage,
+    _fval_percentage
+  );
+}
+
+/**
+ *  @brief Get seconds portion of timestamp.
+ *
+ *  This method returns the seconds portion of the specified timestamp
+ *
+ *  @param[in] _time points to the timestamp
+ *
+ *  @retval The seconds portion of @a _time.
+ */
+RTEMS_INLINE_ROUTINE time_t _Timestamp_Get_seconds(
+  const Timestamp_Control *_time
+)
+{
+  return (*_time >> 32);
+}
+
+/**
+ *  @brief Get nanoseconds portion of timestamp.
+ *
+ *  This method returns the nanoseconds portion of the specified timestamp
+ *
+ *  @param[in] _time points to the timestamp
+ *
+ *  @retval The nanoseconds portion of @a _time.
+ */
+RTEMS_INLINE_ROUTINE uint32_t _Timestamp_Get_nanoseconds(
+  const Timestamp_Control *_time
+)
+{
+  struct timespec _ts;
+
+  _ts = sbttots( *_time );
+
+  return (uint32_t) _ts.tv_nsec;
+}
+
+/**
+ *  @brief Get the timestamp as nanoseconds.
+ *
+ *  This method returns the timestamp as nanoseconds.
+ *
+ *  @param[in] _time points to the timestamp
+ *
+ *  @retval The time in nanoseconds.
+ */
+RTEMS_INLINE_ROUTINE uint64_t _Timestamp_Get_as_nanoseconds(
+  const Timestamp_Control *_time
+)
+{
+  struct timespec _ts;
+
+  _ts = sbttots( *_time );
+
+  return _Timespec_Get_as_nanoseconds( &_ts );
+}
+
+/**
+ *  @brief Convert timestamp to struct timespec.
+ *
+ *  This method returns the seconds portion of the specified @a _timestamp.
+ *
+ *  @param[in] _timestamp points to the timestamp
+ *  @param[in] _timespec points to the timespec
+ */
+RTEMS_INLINE_ROUTINE void _Timestamp_To_timespec(
+  const Timestamp_Control *_timestamp,
+  struct timespec         *_timespec
+)
+{
+  *_timespec = sbttots( *_timestamp );
+}
+
+/**
+ *  @brief Convert timestamp to struct timeval.
+ *
+ *  @param[in] _timestamp points to the timestamp
+ *  @param[in] _timeval points to the timeval
+ */
+RTEMS_INLINE_ROUTINE void _Timestamp_To_timeval(
+  const Timestamp_Control *_timestamp,
+  struct timeval          *_timeval
+)
+{
+  *_timeval = sbttotv( *_timestamp );
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+
+#endif
+/* end of include file */