Add Compiler Options; Find reason for yellow warning exclamation mark

[chriskuku]

Split from  https://community.st.com/t5/stm32cubeide-mcus/warning-in-build-stm32cubeide-1-18-0-load-segment-with-rwx/td-p/788554 

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Since I have a yellow exclamation mark sticking at the project icon I would like to see if it disappears when I add the CFLAG:

--no-warn-rwx-segments

in the makefile. The Debug/makefile contains a bunch of flags but misses the CFLAG which I assume to be burried in one of the includes (makefile.init, makefile.defs). Only, I cannot finde these included files. Can anyone help?

And how can I find out about the reason for the yellow exclamation mark? I was used to find this propagating downstream in the tree view attached to other files. But I don't see any "smudged" file.

[Andrew Neil]

You can add flags in the Project settings Properties here:

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@chriskuku wrote:

how can I find out about the reason for the yellow exclamation mark? 

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If you hover your mouse over it, it should show the warning.

Also look in the Console output window.

[chriskuku]

Project Settings, name it better "Project Properties" - hard to find. Rightclick on the project in the tree view.
Click on Properties. The one finds C/C++ Build.

It's not in the Preferences menu item (macOS)

[Andrew Neil]

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@chriskuku wrote:

Project Settings, name it better "Project Properties" 

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Indeed - post corrected

[chriskuku]

Ah, it's a linker flag. OTOH, it's passed to gcc -o . Maybe the syntax is still wrong?

arm-none-eabi-gcc: error: unrecognized command-line option '--no-warn-rwx-segments'
make[1]: *** [makefile:66: OledDrv.elf] Error 1
make: *** [makefile:59: all] Error 2
"make all" terminated with exit code 2. Build might be incomplete.

Maybe my toolchain is too old? Where can I update the toolchain?

[Andrew Neil]

Ah, yes - that figures!

[chriskuku]

Seems linker doesn't know of that flag. Maybe my tool chain is too old? How can I upgrade the toolchain?

[Andrew Neil]

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@chriskuku wrote:

Seems linker doesn't know of that flag.

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What makes you say that?

[chriskuku]

My previous post:

arm-none-eabi-gcc: error: unrecognized command-line option '--no-warn-rwx-segments'
make[1]: *** [makefile:66: OledDrv.elf] Error 1
make: *** [makefile:59: all] Error 2
"make all" terminated with exit code 2. Build might be incomplete.

[Andrew Neil]

and was that as a Linker option, or a Compiler option ?

To pass options to the Linker via the Compiler: https://gcc.gnu.org/onlinedocs/gcc/Link-Options.html#index-Wl