source: rtems/bsps/powerpc/psim/include/psim.h @ d8de6b9

5
Last change on this file since d8de6b9 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 *  PSIM addresses and constants based upon the configuration
3 *  of devices used in the script provided by RTEMS.
4 */
5
6#ifndef __PSIM_h
7#define __PSIM_h
8
9/*
10 * RAM Information
11 */
12
13extern char RamBase[];
14extern char RamSize[];
15
16/*
17 * RamBase/RamSize is defined by the linker script;
18 * CPP symbols are AFAIK unused and deprecated.
19 */
20#define PSIM_RAM_SIZE ((unsigned long)RamSize)
21#define PSIM_RAM_BASE ((void*)RamBase)
22
23/*
24 * NVRAM/RTC Structure and Information
25 */
26
27#define PSIM_RTC_FREEZE 0xc0
28#define PSIM_RTC_UPDATE 0x00
29
30typedef struct {
31  volatile uint8_t Control; /* 0x04 */
32  volatile uint8_t Second;  /* 0x05 */
33  volatile uint8_t Minute;  /* 0x06 */
34  volatile uint8_t Hour;    /* 0x07 */
35  volatile uint8_t Day;     /* 0x08 */
36  volatile uint8_t Date;    /* 0x09 */
37  volatile uint8_t Month;   /* 0x0a */
38  volatile uint8_t Year;    /* 0x0b */
39} psim_rtc_t;
40
41/*
42 *  System V IPC Semaphore -- Read Only
43 */
44
45typedef struct {
46  volatile uint32_t  obtain_value;  /* 0x00 */
47  volatile uint32_t  lock;          /* 0x04 */
48  volatile uint32_t  unlock;        /* 0x08 */
49} psim_sysv_sem_t;
50
51typedef struct {
52  /* 0x0c000000 - 0x0c007FFF - AMD 29F040 */
53  volatile uint8_t Flash[ 512 * 1024 ];
54
55  /* 0x0c080000 - 0x0c0FFFFF - NVRAM/NVRAM */
56  volatile uint8_t nvram[ 512 * 1024 ];
57
58  /* 0x0c100000 - 0x0c100007 - NVRAM/RTC */
59  psim_rtc_t RTC;
60
61  /* 0x0c100008 - 0x0c10000F - NVRAM/RTC */
62  uint8_t gap1[8];
63
64  /* 0x0c100010 - 0x0c10001b - System V IPC Semaphore */
65  psim_sysv_sem_t Semaphore;
66
67  /* 0x0c10001c - 0x0c10001f - NVRAM/RTC */
68  uint8_t gap2[4];
69
70  /* 0x0c100020 - 0x0c10005F - Ethernet */
71  volatile uint8_t Ethtap[ 64 ];
72
73  /* 0x0c100060 - 0x0c10FFFF - NVRAM/RTC */
74  uint8_t gap3[65440];
75
76  /* 0x0c110000 - 0x0c12FFFF - System V IPC Shared Memory */
77  uint8_t SharedMemory[ 128 * 1024 ];
78
79  /* 0x0c130000 - 0x0c170000 - OpenPIC IRQ Controller */
80  volatile uint8_t OpenPIC[ 256 * 1024 ];
81
82} psim_registers_t;
83
84/*
85 *  Data Structure Overlay for Registers.  See linkcmds for placement.
86 */
87extern psim_registers_t PSIM;
88
89#endif
90/* end of include file */
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