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, 125 insertions, 0 deletions

diff --git a/cpukit/include/dev/i2c/sensor-lm75a.h b/cpukit/include/dev/i2c/sensor-lm75a.h
new file mode 100644
index 0000000000..e1957dad19
--- /dev/null
+++ b/cpukit/include/dev/i2c/sensor-lm75a.h
@@ -0,0 +1,125 @@
+/**
+ * @file
+ *
+ * @brief Temperature Sensor LM75A Driver API
+ *
+ * @ingroup I2CSensorLM75A
+ */
+
+/*
+ * Copyright (c) 2017 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * 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 _DEV_I2C_SENSOR_LM75A_H
+#define _DEV_I2C_SENSOR_LM75A_H
+
+#include <dev/i2c/i2c.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/**
+ * @defgroup I2CSensorLM75A Temperature Sensor LM75A Driver
+ *
+ * @ingroup I2CDevice
+ *
+ * @brief Driver for NXP or Texas Instruments LM75A temperature sensor.
+ *
+ * @{
+ */
+
+int i2c_dev_register_sensor_lm75a(
+  const char *bus_path,
+  const char *dev_path,
+  uint16_t address
+);
+
+typedef enum {
+  SENSOR_LM75A_GET_CONF = I2C_DEV_IO_CONTROL,
+  SENSOR_LM75A_SET_CONF,
+  SENSOR_LM75A_CLEAR_AND_SET_CONF,
+  SENSOR_LM75A_GET_TEMP,
+  SENSOR_LM75A_GET_TOS,
+  SENSOR_LM75A_SET_TOS,
+  SENSOR_LM75A_GET_THYST,
+  SENSOR_LM75A_SET_THYST
+} sensor_lm75a_command;
+
+static inline int sensor_lm75a_get_conf(int fd, uint8_t *val)
+{
+  return ioctl(fd, SENSOR_LM75A_GET_CONF, val);
+}
+
+static inline int sensor_lm75a_set_conf(int fd, uint8_t val)
+{
+  return ioctl(fd, SENSOR_LM75A_SET_CONF, (void *)(uintptr_t) val);
+}
+
+static inline int sensor_lm75a_clear_and_set_conf(
+  int fd,
+  uint8_t clear,
+  uint8_t set
+)
+{
+  uint16_t clear_and_set = (uint16_t) (((uint16_t) set << 8) | clear);
+
+  return ioctl(
+    fd,
+    SENSOR_LM75A_CLEAR_AND_SET_CONF,
+    (void *)(uintptr_t) clear_and_set
+  );
+}
+
+static inline int sensor_lm75a_get_temp(int fd, int16_t *val)
+{
+  return ioctl(fd, SENSOR_LM75A_GET_TEMP, val);
+}
+
+static inline int sensor_lm75a_get_temp_celsius(int fd, double *celsius)
+{
+  int rv;
+  int16_t val;
+
+  rv = ioctl(fd, SENSOR_LM75A_GET_TEMP, &val);
+  *celsius = (((int) val) >> 5) * 0.125;
+  return rv;
+}
+
+static inline int sensor_lm75a_get_tos(int fd, uint16_t *val)
+{
+  return ioctl(fd, SENSOR_LM75A_GET_TOS, val);
+}
+
+static inline int sensor_lm75a_set_tos(int fd, uint16_t val)
+{
+  return ioctl(fd, SENSOR_LM75A_SET_TOS, (void *)(uintptr_t) val);
+}
+
+static inline int sensor_lm75a_get_thyst(int fd, uint16_t *val)
+{
+  return ioctl(fd, SENSOR_LM75A_GET_THYST, val);
+}
+
+static inline int sensor_lm75a_set_thyst(int fd, uint16_t val)
+{
+  return ioctl(fd, SENSOR_LM75A_SET_THYST, (void *)(uintptr_t) val);
+}
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _DEV_I2C_SENSOR_LM75A_H */