Hardware float option

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  • December 29, 2016 at 16:00 #9890
    parsec67
    Participant

    Wondering about “Floating-point ABI” setting in VS project Configuration properties->ARM settings, does it have any purpose? I have hardware float set  in my VisualGDB project properties page and the stm32.xml file seems to reflect that the correct library is used, see below. Changing Floating-point ABI has no effect?

    <KeyValue>
        <Key>com.sysprogs.bspoptions.arm.floatmode</Key>
        <Value>-mfloat-abi=hard</Value>
</KeyValue>
    December 30, 2016 at 00:05 #9895
    support
    Keymaster

    Hi,

    The value in the VisualGDB Project Properties is set for all configurations and is stored in stm32.props:

        <ItemDefinitionGroup>
        <ToolchainSettingsContainer>
            <ARMCPU>cortex-m4</ARMCPU>
            <InstructionSet>THUMB</InstructionSet>
            <FloatABI>soft</FloatABI>
        </ToolchainSettingsContainer>
    </ItemDefinitionGroup>

    The corresponding VS property could override it for each configuration, but we do not recommend changing it manually to avoid confusion.

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