source: rtems/cpukit/score/cpu/i386/include/rtems/score/interrupts.h @ 2afb22b

5
Last change on this file since 2afb22b was 2afb22b, checked in by Chris Johns <chrisj@…>, on Dec 23, 2017 at 7:18:56 AM

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: 2.0 KB
Line 
1/**
2 * @file
3 *
4 * @brief Intel I386 Interrupt Macros
5 *
6 * Formerly contained in and extracted from libcpu/i386/cpu.h
7 */
8
9/*
10 *  COPYRIGHT (c) 1998 valette@crf.canon.fr
11 *
12 *  The license and distribution terms for this file may be
13 *  found in the file LICENSE in this distribution or at
14 *  http://www.rtems.org/license/LICENSE.
15 *
16 *  Applications must not include this file directly.
17 */
18
19#ifndef _RTEMS_SCORE_INTERRUPTS_H
20#define _RTEMS_SCORE_INTERRUPTS_H
21
22#ifndef ASM
23
24struct  __rtems_raw_irq_connect_data__;
25
26typedef void (*rtems_raw_irq_hdl)               (void);
27typedef void (*rtems_raw_irq_enable)            (const struct __rtems_raw_irq_connect_data__*);
28typedef void (*rtems_raw_irq_disable)           (const struct __rtems_raw_irq_connect_data__*);
29typedef int  (*rtems_raw_irq_is_enabled)        (const struct __rtems_raw_irq_connect_data__*);
30
31/**
32 * @name Interrupt Level Macros
33 *
34 */
35/**@{**/
36#if !defined(RTEMS_PARAVIRT)
37#define i386_disable_interrupts( _level ) \
38  { \
39    __asm__ volatile ( "pushf ; \
40                    cli ; \
41                    pop %0" \
42                   : "=rm" ((_level)) \
43    ); \
44  }
45
46#define i386_enable_interrupts( _level )  \
47  { \
48    __asm__ volatile ( "push %0 ; \
49                    popf" \
50                    : : "rm" ((_level)) : "cc" \
51    ); \
52  }
53
54#define i386_flash_interrupts( _level ) \
55  { \
56    __asm__ volatile ( "push %0 ; \
57                    popf ; \
58                    cli" \
59                    : : "rm" ((_level)) : "cc" \
60    ); \
61  }
62
63#define i386_get_interrupt_level( _level ) \
64  do { \
65    register uint32_t   _eflags; \
66    \
67    __asm__ volatile ( "pushf ; \
68                    pop %0" \
69                    : "=rm" ((_eflags)) \
70    ); \
71    \
72    _level = (_eflags & EFLAGS_INTR_ENABLE) ? 0 : 1; \
73  } while (0)
74#else
75uint32_t i386_disable_interrupts( void );
76void i386_enable_interrupts(uint32_t level);
77void i386_flash_interrupts(uint32_t level);
78void i386_set_interrupt_level(uint32_t new_level);
79uint32_t i386_get_interrupt_level( void );
80#endif /* PARAVIRT */
81
82/** @} */
83
84#endif
85#endif
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