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Date: Wed, 4 Mar 2015 07:22:19 -0800 (PST)
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Subject: Re: GNAT stm34f4 zfp question.
From: jan.de.kruyf@gmail.com
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Xref: news.eternal-september.org comp.lang.ada:25103
Date: 2015-03-04T07:22:19-08:00
List-Id: <comp.lang.ada>

On Tuesday, March 3, 2015 at 7:15:29 PM UTC+2, Patrick Noffke wrote:

> Here is my final linking command in my own Makefile:
> 
> 	@$(CC) --RTS=$(RTS) $(LD_FLAGS) -Wl,--gc-sections -nostdinc -nodefaultlibs -nostartfiles -T$(LINKER_SCRIPT) -L$(RTS_INSTALL_DIR) $(OBJS) $(RTS_INSTALL_DIR)/libgnat.a $(RTS_INSTALL_DIR)/libgnarl.a -lgcc -o $@
> 
> where
> 
> LD_FLAGS := -fmessage-length=0 -gnatA -mcpu=cortex-m4 -mlittle-endian -mfpu=fpv4-sp-d16 -march=armv7e-m -mfloat-abi=hard -mthumb
> 
> (This was for a Cortex-M4 MCU.)
> 

Just a quick update: 
I managed to make a reasonable looking runtime libgnat.a by diligently reading the gnathie_ug.pdf and the  gnat_ugx.pdf  manuals.

Especially the first one gives some rationale as to why the zfp tar file looks the way it looks.

So I added some ravenscar runtime files into the mix and build with gps.

The biggest issue is to sort out the board support files, since I now wanted to do away with threads and some other cruft in there, sine we have ravenscar if I need that.


Tomorrow we try to use it . . .

cheers,

j.