osfmk/conf/MASTER

   1 #
   2 # Mach Operating System
   3 # Copyright (c) 1986 Carnegie-Mellon University
   4 # All rights reserved.  The CMU software License Agreement
   5 # specifies the terms and conditions for use and redistribution.
   6 #
   7 #######################################################################
   8 #
   9 #       Master machine independent configuration file.
  10 #
  11 #       Specific configuration files are created based on this and
  12 #       the machine specific master file using the doconf script.
  13 #
  14 #       Any changes to the master configuration files will affect all
  15 #       other configuration files based upon it.
  16 #
  17 #######################################################################
  18 #
  19 #       To build a configuration, execute "doconf <configuration>."
  20 #       Configurations are specified in the "Configurations:" section
  21 #       of the MASTER and MASTER.* files as follows:
  22 #
  23 #       <configuration> = [ <attribute0> <attribute1> ... <attributeN> ]
  24 #
  25 #       Lines in the MASTER and MASTER.* files are selected based on
  26 #       the attribute selector list, found in a comment at the end of
  27 #       the line.  This is a list of attributes separated by commas.
  28 #       The "!" operator selects the line if none of the attributes are
  29 #       specified.
  30 #
  31 #       For example:
  32 #
  33 #       <foo,bar>       selects a line if "foo" or "bar" are specified.
  34 #       <!foo,bar>      selects a line if neither "foo" nor "bar" is
  35 #                       specified.
  36 #
  37 #       Lines with no attributes specified are selected for all
  38 #       configurations.
  39 #
  40 #######################################################################
  41 #  SYSTEM SIZE CONFIGURATION (select exactly one)
  42 #
  43 #       xlarge = extra large scale system configuration
  44 #       large  = large scale system configuration
  45 #       medium = medium scale system configuration
  46 #       small  = small scale system configuration
  47 #       xsmall = extra small scale system configuration
  48 #       bsmall = special extra small scale system configuration
  49 #
  50 #######################################################################
  51 #
  52 # Basic compilation options.
  53 #
  54 # The MACH ident is passed to every kernel file compilation as -DMACH.
  55 #       This is useful in order to #ifdef code that is intended to be used in
  56 #       a MACH kernel.
  57 #
  58 ident           MACH
  59 ##############################################################################
  60 #
  61 # MACH configuration options.
  62 #
  63 # TASK_SWAPPER enables code that manages demand for physical memory by
  64 #       forcibly suspending tasks when the demand exceeds supply. This
  65 #       option should be on.
  66 #
  67 options         MACH_KERNEL
  68 options         MACH_PAGEMAP
  69 options         MACH_LOAD
  70 options         MACH_RT
  71 options         TASK_SWAPPER    #       <task_swapper_disabled>
  72 pseudo-device   test_device     1
  73 options         ADVISORY_PAGEOUT
  74 ##########################################################
  75 #
  76 # conf/config.debug
  77 #
  78 # This defines configuration options that are normally used only during
  79 # kernel code development and debugging. They add run-time error checks or
  80 # statistics gathering, which will slow down the system
  81 #
  82 ##########################################################
  83 #
  84 # MACH_ASSERT controls the assert() and ASSERT() macros, used to verify the
  85 #       consistency of various algorithms in the kernel. The performance impact
  86 #       of this option is significant.
  87 #
  88 options         MACH_ASSERT     #               # <mach_assert>
  89 #
  90 # MACH_DEBUG enables the mach_debug_server, a message interface used to
  91 #       retrieve or control various statistics. This interface may expose data
  92 #       structures that would not normally be allowed outside the kernel, and
  93 #       MUST NOT be enabled on a released configuration.
  94 #       Other options here enable information retrieval for specific subsystems
  95 #
  96 options         MACH_DEBUG      #               #
  97 options         MACH_IPC_DEBUG  #               #
  98 #
  99 options         MACH_VM_DEBUG   #               # <debug>
 100 #
 101 # MACH_MP_DEBUG control the possible dead locks that may occur by controlling
 102 #       that IPL level has been raised down to SPL0 after some calls to
 103 #       hardclock device driver.
 104 #
 105 options         MACH_MP_DEBUG   #               # <debug>
 106 #
 107 # ZONE_DEBUG keeps track of all zalloc()ed elements to perform further
 108 #       operations on each element.
 109 #
 110 options         ZONE_DEBUG      #               # <debug>
 111 #
 112 options         ZONE_ALIAS_ADDR #               # <zone_alias_addr>
 113 #
 114 # XPR_DEBUG enables the gathering of data through the XPR macros inserted
 115 #       into various subsystems. This option is normally only enabled for
 116 #       specific performance or behavior studies, as the overhead in both
 117 #       code and data space is large. The data is normally retrieved through
 118 #       the kernel debugger (kdb) or by reading /dev/kmem.
 119 #
 120 options         XPR_DEBUG       #               # <debug>
 121 #
 122 # MACH_LDEBUG controls the internal consistency checks and
 123 #       data gathering in the locking package. This also enables a debug-only
 124 #       version of simple-locks on uniprocessor machines. The code size and
 125 #       performance impact of this option is significant.
 126 #
 127 options         MACH_LDEBUG     #               # <debug>
 128
 129 #
 130 #
 131 #
 132 options         KDEBUG          # kernel tracing        # <kdebug>
 133
 134 #
 135 # CONFIG_DTRACE enables code needed to support DTrace. Currently this is
 136 # only used for delivery of traps/interrupts to DTrace.
 137 #
 138 options         CONFIG_DTRACE   #               # <config_dtrace>
 139
 140 # MACH_COUNTERS enables code that handles various counters in the system.
 141 #
 142 options         MACH_COUNTERS   #               # <debug>
 143
 144 options         UPL_DEBUG       #               # <debug>
 145
 146 ##########################################################
 147 #
 148 # This defines configuration options that are normally used only during
 149 # kernel code development and performance characterization. They add run-time
 150 # statistics gathering, which will slow down the system,
 151 #
 152 ##########################################################
 153 #
 154 # MACH_IPC_STATS controls the collection of statistics in the MACH IPC
 155 #       subsystem.
 156 #
 157 #options        MACH_IPC_STATS
 158 #
 159 # MACH_CO_INFO controls the collection of callout statistics. This
 160 #       information is retrieved via a mach_debug message, or though
 161 #       /dev/kmem. The runtime impact of the option is minimal.
 162 #
 163 #options        MACH_CO_INFO
 164 #
 165 # MACH_CLUSTER_STATS controls the collection of various statistics concerning
 166 #       the effectiveness and behavior of the clustered pageout and pagein
 167 #       code.
 168 #
 169 #options        MACH_CLUSTER_STATS
 170 #
 171 # MACH_SCTIMES enables optional code that can be used to measure the
 172 #       execution overhead of performing Mach traps with 1 through 6
 173 #       arguments.
 174 #
 175 #options        MACH_SCTIMES
 176 #
 177 # MACH_COUNTERS enables various code-path statistics. Most of these
 178 #       are accessed through the debugger.
 179 #
 180 options         MACH_COUNTERS           #               # <stats>
 181
 182 #
 183 #  configuration option for including cypto code
 184 #
 185 options         CRYPTO                  # <crypto>
 186
 187 # HIBERNATION - include hibernation code
 188 #
 189 options         HIBERNATION             #               # <hibernation>
 190
 191 #
 192 #  configurable kernel related resources (CONFIG_THREAD_MAX needs to stay in
 193 #  sync with bsd/conf/MASTER until we fix the config system... todo XXX
 194 #
 195 options   CONFIG_THREAD_MAX=2560                # <medium,large,xlarge>
 196 options   CONFIG_THREAD_MAX=1536                # <small,xsmall>
 197 options   CONFIG_THREAD_MAX=1024                # <bsmall>
 198
 199 options   CONFIG_TASK_MAX=1024                  # <medium,large,xlarge>
 200 options   CONFIG_TASK_MAX=768                   # <small,xsmall>
 201 options   CONFIG_TASK_MAX=512                   # <bsmall>
 202
 203 options   CONFIG_ZONE_MAP_MIN=12582912  # <medium,large,xlarge>
 204 options   CONFIG_ZONE_MAP_MIN=6291456   # <small,xsmall>
 205 options   CONFIG_ZONE_MAP_MIN=1048576   # <bsmall>
 206
 207 options   CONFIG_TOKEN_QUEUE_SMALL=1            # <bsmall>
 208 options   CONFIG_TOKEN_QUEUE_SMALL=0            # <xsmall,small,medium,large,xlarge>
 209
 210 #
 211 #  configurable kernel - use these options to strip strings from panic
 212 #  and printf calls.
 213 #  no_panic_str - saves around 50K of kernel footprint.
 214 #  no_printf_str - saves around 45K of kernel footprint.
 215 #
 216 options   CONFIG_NO_PANIC_STRINGS               # <no_panic_str>
 217 options   CONFIG_NO_PRINTF_STRINGS              # <no_printf_str>
 218 options   CONFIG_NO_KPRINTF_STRINGS             # <no_kprintf_str>
 219
 220 # configurable kernel - general switch to say we are building for an
 221 # embedded device
 222 #
 223 options   CONFIG_EMBEDDED                       # <config_embedded>
 224
 225 #  jettison_kernel_linker - jettison kernel linker after kernel init; don't wait for kextd to launch
 226 options   CONFIG_JETTISON_KERNEL_LINKER         # <jettison_kernel_linker>
 227
 228 # vc_progress_white - make the progress gear white instead of black
 229 options   CONFIG_VC_PROGRESS_WHITE              # <vc_progress_white>
 230
 231 # secure_kernel - secure kernel from user programs
 232 options         SECURE_KERNEL           # <secure_kernel>