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# ====================================================================

#

#      assert.cdl

#

#      Infrastructure debugging/assertion configuration data

#

# ====================================================================

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## This file is part of eCos, the Embedded Configurable Operating System.

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# ====================================================================

######DESCRIPTIONBEGIN####

#

# Author(s):      jskov

# Original data:  bartv,hmt

# Contributors:

# Date:           1999-07-02

#

#####DESCRIPTIONEND####

#

# ====================================================================

# The eCos system uses a number of more specialised assertions in

# addition to a conventional ASSERT() macro. By default these are all

# enabled when general assertions are enabled, but it is possible to

# suppress some of them and thus reduce the size of the generated code.

#

# Preconditions check that a condition holds true at the beginning of

# a piece of code, typically at the start of a function. For example a

# kernel function might have a precondition that it is only invoked

# when the scheduler is locked.

#

# Postconditions check that a condition holds at the end of a piece of

# code, typically at the point where a function returns. For example

# at the end of scheduler initialisation there could be a

# postcondition that there is at least one runnable thread, the idle

# thread.

#

# Loop invariants check that a condition holds on every iteration of

# a loop. For example the deferred service support code in the kernel

# could have a loop invariant that interrupts are enabled whenever

# there are still DSR's pending.

cdl_option CYGDBG_INFRA_DEBUG_PRECONDITIONS {

    display       "Preconditions"

    default_value 1

    description   "

        This option allows individual control of preconditions.

        A precondition is one type of assert, which it is

        useful to control separately from more general asserts.

        The function is CYG_PRECONDITION(condition,msg)."

}

cdl_option CYGDBG_INFRA_DEBUG_POSTCONDITIONS {

    display       "Postconditions"

    default_value 1

    description   "

        This option allows individual control of postconditions.

        A postcondition is one type of assert, which it is

        useful to control separately from more general asserts.

        The function is CYG_POSTCONDITION(condition,msg)."

}

cdl_option CYGDBG_INFRA_DEBUG_LOOP_INVARIANTS {

    display       "Loop invariants"

    default_value 1

    description   "

        This option allows individual control of loop invariants.

        A loop invariant is one type of assert, which it is

        useful to control separately from more general asserts,

        particularly since a loop invariant is typically evaluated

        a great many times when used correctly.

        The function is CYG_LOOP_INVARIANT(condition,msg)."

}

cdl_option CYGDBG_INFRA_DEBUG_ASSERT_MESSAGE {

    display       "Use assert text"

    default_value 1

    description   "

        All assertions within eCos contain a text message

        which should give some information about the condition

        being tested.

        These text messages will end up being embedded in the

        application image and hence there is a significant penalty

        in terms of image size.

        It is possible to suppress the use of these messages by

        disabling this option.

        This results in smaller code size, but there is less

        human-readable information if an assertion actually gets

        triggered."

}

# EOF assert.cdl