source: rtems/c/src/lib/libbsp/i386/pc386/configure.ac @ 441b90e

4.115
Last change on this file since 441b90e was 50d1c45d, checked in by Joel Sherrill <joel.sherrill@…>, on Aug 29, 2011 at 9:36:02 PM

2011-08-29 Joel Sherrill <joel.sherrilL@…>

  • configure.ac: Formatting. Remove duplication BSP_HAS_SMP.
  • Property mode set to 100644
File size: 3.7 KB
Line 
1## Process this file with autoconf to produce a configure script.
2##
3## $Id$
4
5AC_PREREQ([2.68])
6AC_INIT([rtems-c-src-lib-libbsp-i386-pc386],[_RTEMS_VERSION],[http://www.rtems.org/bugzilla])
7AC_CONFIG_SRCDIR([bsp_specs])
8RTEMS_TOP(../../../../../..)
9
10RTEMS_CANONICAL_TARGET_CPU
11AM_INIT_AUTOMAKE([no-define nostdinc foreign 1.11.1])
12RTEMS_BSP_CONFIGURE
13
14RTEMS_PROG_CC_FOR_TARGET
15RTEMS_CANONICALIZE_TOOLS
16RTEMS_CHECK_TOOL(OBJCOPY,objcopy,:)
17RTEMS_PROG_CCAS
18
19RTEMS_CHECK_NETWORKING
20RTEMS_CHECK_SMP
21
22RTEMS_BSPOPTS_SET([USE_COM1_AS_CONSOLE],[*],[0])
23RTEMS_BSPOPTS_HELP([USE_COM1_AS_CONSOLE],
24[Determines, whether the console will be associated with the standard
25 VGA display or with the COM1 serial port.  Currently only the VGA
26 display and COM1 support printk.])
27
28RTEMS_BSPOPTS_SET([IDE_USE_PRIMARY_INTERFACE],[*],[1])
29RTEMS_BSPOPTS_HELP([IDE_USE_PRIMARY_INTERFACE],
30[Determines, whether RTEMS will try to use the primary IDE interface.
31 Disable it, if:
32 - you have no primary IDE interface
33 - or you have no disk attached to this interface
34 - or you do not want to access disks attached to this interface])
35
36RTEMS_BSPOPTS_SET([IDE_USE_SECONDARY_INTERFACE],[*],[0])
37RTEMS_BSPOPTS_HELP([IDE_USE_SECONDARY_INTERFACE],
38[Determines, whether RTEMS will try to use the secondary IDE interface.
39 Enable it, if:
40 - you have a secondary IDE interface
41 - and you have at least one disk attached to this interface
42 - and you do want to access disks attached to this interface])
43
44RTEMS_BSPOPTS_SET([BSP_VIDEO_80x50],[*],[0])
45RTEMS_BSPOPTS_HELP([BSP_VIDEO_80x50],
46[If defined, set the VGA display to 80x50.])
47
48RTEMS_BSPOPTS_SET([CLOCK_DRIVER_USE_TSC],[*],[0])
49RTEMS_BSPOPTS_HELP([CLOCK_DRIVER_USE_TSC],
50[If enabled, the clock driver will use the TSC register available
51 with Pentium-class CPUs to report close to nanosecond-accuracy
52 clock times.
53 Enable it, if:
54 - you have nanosecond timing enabled (you do NOT have
55   USE_TICKS_FOR_CPU_USAGE_STATISTICS enabled)
56 - you do NOT have CLOCK_DRIVER_USE_8254 enabled (use one, the other,
57   or neither)
58 - you have a Pentium which supports TSC (all Intels, and probably
59   all or most clones)
60 - you do not have a variable-speed CPU clock. Note that some
61   motherboard BIOS will automatically vary clock speed for thermal
62   control. Note also, however, that really new Pentium-class chips
63   from Intel and AMD will maintain a constant-rate TSC regardless.
64])
65
66#define CLOCK_DRIVER_USE_8254 $CLOCK_DRIVER_USE_8254
67RTEMS_BSPOPTS_SET([CLOCK_DRIVER_USE_8254],[*],[0])
68RTEMS_BSPOPTS_HELP([CLOCK_DRIVER_USE_8254],
69[If enabled, the clock driver will use the good old 8254 chip
70 to report microsecond-accuracy clock times.
71 Enable it, if:
72 - you have nanosecond timing enabled (you do NOT have
73   USE_TICKS_FOR_CPU_USAGE_STATISTICS enabled)
74 - you do NOT have CLOCK_DRIVER_USE_TSC enabled (use one, the other,
75   or neither)
76 - you do not mind adding roughly 5 microseconds to each context switch.
77])
78
79if test X${CLOCK_DRIVER_USE_TSC} = X1 -a X${CLOCK_DRIVER_USE_8254} = X1 ; then
80  AC_MSG_ERROR([pc386 both TSC and 8254 specified for clock driver])
81fi
82
83## The PC386 BSP supports SMP configurations if this is enabled.
84RTEMS_BSPOPTS_SET([BSP_HAS_SMP],[*],[1])
85RTEMS_BSPOPTS_HELP([BSP_HAS_SMP],
86[Always defined when on a pc386 to enable the pc386 support for
87 determining the CPU core number in an SMP configuration.])
88
89## if this is an i386, does gas have good code16 support?
90RTEMS_I386_GAS_CODE16
91AM_CONDITIONAL(RTEMS_GAS_CODE16,[test "$RTEMS_GAS_CODE16" = "yes"])
92
93AM_CONDITIONAL(HAS_NETWORKING,[test "$HAS_NETWORKING" = "yes"])
94AM_CONDITIONAL(HAS_SMP,[test "$rtems_cv_HAS_SMP" = "yes"])
95
96AC_SUBST([RTEMS_ROOT],[${rtems_updir}'$(top_builddir)'])
97
98RTEMS_CONFIG_BUILD_SUBDIRS(tools)
99
100AC_SUBST(RTEMS_BSP)
101
102RTEMS_BSP_CLEANUP_OPTIONS(1, 1)
103
104# Explicitly list all Makefiles here
105AC_CONFIG_FILES([Makefile])
106AC_OUTPUT
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