source: rtems/bsps/arm/include/bsp/arm-gic-tm27.h @ e0dd8a5a

5
Last change on this file since e0dd8a5a was 2afb22b, checked in by Chris Johns <chrisj@…>, on 12/23/17 at 07:18:56

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.
  • Property mode set to 100644
File size: 2.1 KB
Line 
1/**
2 *  @file
3 *
4 *  @ingroup arm_gic
5 *
6 *  @brief ARM GIC TM27 Support
7 */
8
9/*
10 * Copyright (c) 2013-2014 embedded brains GmbH.  All rights reserved.
11 *
12 *  embedded brains GmbH
13 *  Dornierstr. 4
14 *  82178 Puchheim
15 *  Germany
16 *  <info@embedded-brains.de>
17 *
18 * The license and distribution terms for this file may be
19 * found in the file LICENSE in this distribution or at
20 * http://www.rtems.org/license/LICENSE.
21 */
22
23#ifndef _RTEMS_TMTEST27
24#error "This is an RTEMS internal file you must not include directly."
25#endif
26
27#ifndef LIBBSP_ARM_SHARED_ARM_GIC_TM27_H
28#define LIBBSP_ARM_SHARED_ARM_GIC_TM27_H
29
30#include <assert.h>
31
32#include <bsp.h>
33#include <bsp/irq.h>
34
35#define MUST_WAIT_FOR_INTERRUPT 1
36
37#define ARM_GIC_TM27_IRQ_LOW ARM_GIC_IRQ_SGI_12
38
39#define ARM_GIC_TM27_IRQ_HIGH ARM_GIC_IRQ_SGI_13
40
41#define ARM_GIC_TM27_PRIO_LOW 0x80
42
43#define ARM_GIC_TM27_PRIO_HIGH 0x00
44
45static inline void Install_tm27_vector(void (*handler)(rtems_vector_number))
46{
47  rtems_status_code sc = rtems_interrupt_handler_install(
48    ARM_GIC_TM27_IRQ_LOW,
49    "tm27 low",
50    RTEMS_INTERRUPT_UNIQUE,
51    (rtems_interrupt_handler) handler,
52    NULL
53  );
54  assert(sc == RTEMS_SUCCESSFUL);
55
56  sc = arm_gic_irq_set_priority(
57    ARM_GIC_TM27_IRQ_LOW,
58    ARM_GIC_TM27_PRIO_LOW
59  );
60  assert(sc == RTEMS_SUCCESSFUL);
61
62  sc = rtems_interrupt_handler_install(
63    ARM_GIC_TM27_IRQ_HIGH,
64    "tm27 high",
65    RTEMS_INTERRUPT_UNIQUE,
66    (rtems_interrupt_handler) handler,
67    NULL
68  );
69  assert(sc == RTEMS_SUCCESSFUL);
70
71  sc = arm_gic_irq_set_priority(
72    ARM_GIC_TM27_IRQ_HIGH,
73    ARM_GIC_TM27_PRIO_HIGH
74  );
75  assert(sc == RTEMS_SUCCESSFUL);
76}
77
78static inline void Cause_tm27_intr(void)
79{
80  rtems_status_code sc = arm_gic_irq_generate_software_irq(
81    ARM_GIC_TM27_IRQ_LOW,
82    ARM_GIC_IRQ_SOFTWARE_IRQ_TO_SELF,
83    0
84  );
85  assert(sc == RTEMS_SUCCESSFUL);
86}
87
88static inline void Clear_tm27_intr(void)
89{
90  /* Nothing to do */
91}
92
93static inline void Lower_tm27_intr(void)
94{
95  rtems_status_code sc = arm_gic_irq_generate_software_irq(
96    ARM_GIC_TM27_IRQ_HIGH,
97    ARM_GIC_IRQ_SOFTWARE_IRQ_TO_SELF,
98    0
99  );
100  assert(sc == RTEMS_SUCCESSFUL);
101}
102
103#endif /* LIBBSP_ARM_SHARED_ARM_GIC_TM27_H */
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