Am Mon, 11 May 2015 12:20:46 +0000
schrieb "Mike" <n...@none.com>:
> On Sunday, 10 May 2015 at 17:45:30 UTC, Johannes Pfau wrote:
> > I've just opened a pull request for -fno-rtti at [1]. The
> > frontend part
> > needs to go into DMD but I'd like some testing feedback first.
> > This is
> > especially important as I had literally no time to test this
> > updated code ;-) Please provide feedback here or at [1].
> >
>
> Thanks for doing this!
>
> I tested my LCD demo and I get the following errors,
>
> Compiler command
> ----------------
> arm-none-eabi-gdc -c -O3 -nophoboslib -nostdinc -nodefaultlibs
> -nostdlib -mthumb -mcpu=cortex-m4 -fno-bounds-check
> -fno-invariants -fno-in -fno-out -fno-emit-moduleinfo -fno-rtti
> -ffunction-sections -fdata-sections {some_imports}
> {my_source_files} -o binary/firmware.o
>
> Compiler output
> ---------------
> source/stm32f42/trace.d:58:5: error: Can't use array literal:
> TypeInfo disabled using -fno-rtti switch.
> [
> ^
I really need to make that test smarter. Static array init of course
doesn't require TypeInfo. As a workaround you could remove this check:
https://github.com/D-Programming-GDC/GDC/pull/100/files#diff-5960d486a42197785b9eee4ba95c6b95L4082
> cc1d: error: Can't use typeid: TypeInfo disabled using -fno-rtti
> switch.
> source/gcc/attribute.d:10:12: error: template instance
> gcc.attribute.Attribute!string error instantiating
> return Attribute!A(args);
> ^
> source/gcc/attribute.d:13:45: note: instantiated from here:
> attribute!(string)
> public enum inline = gcc.attribute.attribute("forceinline");
>
Strange. I'll debug this later this week.
>
> Here's the code causing the error
> ---------------------------------
>
> https://github.com/JinShil/stm32f42_discovery_demo/blob/master/source/stm32f42/trace.d#L57
> private void semihostingWrite(in void* ptr, in uint length)
> {
> uint[3] message = [ 2, cast(uint)ptr, length]; // line 58
> semihostingInvoke(0x05, &message);
> }
>
> // attribute.d
> /*************/
> private struct Attribute(A...)
> {
> A args;
> }
>
> https://github.com/JinShil/stm32f42_discovery_demo/blob/master/source/gcc/attribute.d
> auto attribute(A...)(A args) if(A.length > 0 && is(A[0] ==
> string))
> {
> // line 10
> return Attribute!A(args);
> }
>
> //line 13
> public enum inline = gcc.attribute.attribute("forceinline");
> public enum naked = gcc.attribute.attribute("naked");
>
>
> Without the -fno-rtti switch, everything builds fine.
>
> Mike
