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, 58 insertions, 0 deletions

diff --git a/cpukit/include/pci/cfg_auto.h b/cpukit/include/pci/cfg_auto.h
new file mode 100644
index 0000000000..e374e2e2d4
--- /dev/null
+++ b/cpukit/include/pci/cfg_auto.h
@@ -0,0 +1,58 @@
+/* PCI Auto Configuration Library
+ *
+ * COPYRIGHT (c) 2010 Cobham Gaisler AB.
+ *
+ * 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 __PCI_CFG_AUTO_H__
+#define __PCI_CFG_AUTO_H__
+
+#define CFGOPT_NOSETUP_IRQ 0x1 /* Skip IRQ setup */
+
+/* PCI Memory Layout setup, used by the auto-config library in order to
+ * determine the addresses of PCI BARs and Buses.
+ *
+ * All addresses are in PCI address space, the actual address the CPU access
+ * may be different, and taken care of elsewhere.
+ */
+struct pci_auto_setup {
+	int options;
+
+	/* PCI prefetchable Memory space (OPTIONAL) */
+	uint32_t mem_start;
+	uint32_t mem_size; /* 0 = Use MEMIO space for prefetchable mem BARs */
+
+	/* PCI non-prefetchable Memory */
+	uint32_t memio_start;
+	uint32_t memio_size;
+
+	/* PCI I/O space (OPTIONAL) */
+	uint32_t io_start;
+	uint32_t io_size; /* 0 = No I/O space */
+
+	/* Get System IRQ connected to a PCI line of a PCI device on bus0.
+	 * The return IRQ value zero equals no IRQ (IRQ disabled).
+	 */
+	uint8_t (*irq_map)(pci_dev_t dev, int irq_pin);
+
+	/* IRQ Bridge routing. Returns the interrupt pin (0..3 = A..D) that
+	 * a device is connected to on parent bus.
+	 */
+	int (*irq_route)(pci_dev_t dev, int irq_pin);
+};
+
+/* Do PCI initialization: Enumrate buses, scan buses for devices, assign
+ * I/O MEM and MEMIO resources, assign IRQ and so on.
+ */
+extern int pci_config_auto(void);
+
+/* Register a configuration for the auto library (struct pci_auto_setup *) */
+extern void pci_config_auto_register(void *config);
+
+/* PCI memory map */
+extern struct pci_auto_setup pci_auto_cfg;
+
+#endif