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Newsgroups: comp.lang.ada
Date: Sat, 11 Nov 2017 14:05:56 -0800 (PST)
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Subject: Re: How to create a GPR project for ARM Cortex?
From: =?UTF-8?B?Sm9oYW4gU8O2ZGVybGluZCDDhXN0csO2bQ==?= <johaa1993@gmail.com>
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Xref: feeder.eternal-september.org comp.lang.ada:48826
Date: 2017-11-11T14:05:56-08:00
List-Id: <comp.lang.ada>

Thanks it is working now. 

project Default is
   
   for Languages use ("c", "asm");
   for Source_Dirs use ("src");
   for Object_Dir use "obj";
   for Exec_Dir use "bin";
   for Main use ("main.c");
   for Target use "arm-eabi";

   package Naming is
      for Spec_Suffix ("c") use ".h";
      for Body_Suffix ("c") use ".c";
      for Body_Suffix ("asm") use ".s";
   end Naming;

   package Ide is
      for Gnat use "arm-eabi-gnat";
      for Gnatlist use "arm-eabi-gnatls";
      for Debugger_Command use "arm-eabi-gdb";
   end Ide;
   
   package Builder is
      for Default_Switches ("c") use
        (
         "-lm",
         "-lgcc",
         "-lc",
         "-mcpu=cortex-m0",
         "-mthumb",
         "-Og",
         "-Wall",
         "-fdata-sections",
         "-ffunction-sections",
         "-g",
         "-gdwarf-2",
         "-MMD",
         "-MP",
         "-f",
         "-MF""build/main.d""",
         "-MT""build/main.d""",
         --"-Wa,-a,-ad,-alms=""build/main.lst""",
         ""
        );
      for Default_Switches ("asm") use 
        (
         "-x",
         "-lnosys",
         "-lm",
         "-lgcc",
         "-lc",
         "-mcpu=cortex-m0",
         "-mthumb",
         "-Og",
         "-Wall",
         "-fdata-sections",
         "-ffunction-sections",
         "-g",
         "-gdwarf-2",
         "-MMD",
         "-MP",
         "-f"
        );
   end Builder;

   package Compiler is
   end Compiler;

   package Linker is
      for Default_Switches ("c") use
        (
         "-nostartfiles",
         "-nodefaultlibs",
         "-TC:/Users/Johan/Documents/B-L072Z-LRWAN1_Ada/src/STM32L072CZEx_FLASH.ld",
         --"-Tsrc/STM32L072CZEx_FLASH.ld",
         --"-Wl,-Map=build/main.map,--cref",
         "-Wl,--gc-sections",
         --"-o main.elf",
         ""
        );
   end Linker;

end Default;


I have this shell script:
set -x #echo on
gprbuild default.gpr
arm-eabi-objcopy -O binary -S bin/main bin/main.bin
cp bin/main.bin E:/


My board can run a simple blink program.


"-nostartfiles" removes "crt0.o".
"-Tsrc/STM32L072CZEx_FLASH.ld" relative path does not work.
"-Wl,-Map=build/main.map,--cref" does not work.
"-Wa,-a,-ad,-alms=""build/main.lst""" does not work.
"-o main.elf" does not work.

I have not tried gdb debugger or language Ada yet.