Putting an all-zero variable into BSS

[Andreas Schwab]

On Apr 03 2019, Thomas Koenig <tkoenig@netcologne.de> wrote:

> The large default initializers are all filled with zeros which end up in
> the rodata section, like this:
>
>         .text
>         .globl  __types_module_MOD___def_init_types_module_Archive_type
>         .section        .rodata
>         .align 32
>         .type __types_module_MOD___def_init_types_module_Archive_type,
> @object
>         .size __types_module_MOD___def_init_types_module_Archive_type,
> 262144
> __types_module_MOD___def_init_types_module_Archive_type:
>         .zero   262144
>
> ... and so on. To reduce the size of the executable, it would make more
> sense to put this into the BSS section.

Note that .bss is writable.  There is no read-only bss section.

Andreas.

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Andreas Schwab, schwab@linux-m68k.org
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