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Fill bytes between each function

Jonas Mohrs

Hello,

in our build application, the executable contains fill bytes almost between every function and this increases the size of the executable greatly.

I assume this is to some alignment restriction, but I do not know where that should be coming from or how to change that.

Do you have any suggestions?

Thank you in advance.

Compiler: gcc-arm-9.2-2019.12-x86_64-aarch64-none-elf

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  • 0 Arm Employee Badge

    Hi, if I'm reading that correctly, those aren't particularly large amounts of fill data (0x30, 0x24, 0x8, etc), and this is AArch64, which performs better when keeping code aligned properly. Why is the fill data a problem for you?

    The actual alignment is probably coming from some ALIGN directive in your linker script.

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  • 0 Arm Employee Badge

    Hi, if I'm reading that correctly, those aren't particularly large amounts of fill data (0x30, 0x24, 0x8, etc), and this is AArch64, which performs better when keeping code aligned properly. Why is the fill data a problem for you?

    The actual alignment is probably coming from some ALIGN directive in your linker script.

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