Swi-fx30-3g_1.0.1 fails to build with make wp85

1

Hi, I am trying to build legato that comes with the above package i.e. SDK for FX30-3G (Release R17.0.1.007 + Legato 18.06.5)

I downloaded it with leaf, I am in a leaf shell, and make clean does not make a difference

I get the truncation error e.g.

mkPatch.c:1412:55: error: ‘%s’ directive output may be truncated writing up to 4095 bytes into a region of size between 4045 and 4063 [-Werror=format-truncation=]
 1412 |                   "cat patch.%u.cwe.hdr patch.%u.cwe >%s/patch-%s.cwe",
      |                                                       ^~
 1413 |                   pid, pid, CurrentWorkDir, targetPtr );
      |                             ~~~~~~~~~~~~~

gcc -version → gcc (Ubuntu 9.5.0-1ubuntu1~22.04) 9.5.0
make --version → GNU Make 4.3

Have I got something wrong. Why does it not build…

I am able to build swi-fx30-catm.xxx and swi-fx30-cat1.xxx fine in this environment.

Thanks,
Karl

2

you might need to change mkPatch.c to increase the array size of CmdBuf.

3

Thanks for the quick reply as always…

This makes we think this is possibly a gcc version issue. Are there recommended version of gcc etc to build the various version of legato with?

Is this documented somehwhere?

4

this is just warning problem, have you modified mkPatch.c to confirm?

5

I see the later verison of legato 19.x has an edit in the makefile for mkPatch… in particular it manages the warnings as below…

HOST_CFLAGS = -Wall -Werror
ifeq ($(shell test $(GCC_VERSION) -ge 80000 && echo 1), 1)
  HOST_CFLAGS += -Wno-format-truncation
endif

Based on this it seems an issue in legato that was adapted in later versions… for gcc >= 8.xx. I’ve adapted the makefile for the 3g’s legato 18.xxx to include this adjustment for the warnings…

I can now build mkPatch without any other changes…

Thanks,
Karl

6

Ok… but there are more issues… I am not inclinded to change the source file if at all possible… The problem is because of different versions of gcc/g++… so the easiest solution here is to just compile in the original version of gcc/g++ which is 7.

So install gcc7 and g++7 add to update-alternatives… then select v7 as the current version

sudo apt -y install gcc-7 g+±7
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-7 7
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g+±7 7

then update the current version to use v7…
sudo update-alternatives --config gcc
sudo update-alternatives --config g++

now rebuild using make wp85… Everything builds… no need to change source files…