hi,

I just asked for help about this before, on that time, my solution is to remove whatever dub dependencies which are optional.

now, I'm re-examining the dlang program footprint size, and I put a github example repo here:

https://github.com/dangbinghoo/dlang_footprint_test.git

the example is simply a json ser/deser test depends on ASDF, on my machine it generates a binary about 914K using LDC2.

Note: as I'm focused on embedded system development, what I want help with is only for the situation using LDC compiler.

thanks!

On Friday, 8 April 2022 at 03:20:29 UTC, dangbinghoo wrote:

PS: I need the program link Phobos statically, don't want to use .so except the basic C library. so I added option -link-defaultlib-shared=false in dub.json by default, this should not be changed.

On Friday, 8 April 2022 at 03:26:29 UTC, dangbinghoo wrote:

hi, please help with this, can we reduce the footprint?

thanks!

On Saturday, 9 April 2022 at 02:19:52 UTC, dangbinghoo wrote:

OK, I just put on another git repo, which is the simpley helloworld in D, and it
generates 849KB for print a single line!

https://github.com/dangbinghoo/hello_world_d

so, maybe there's something wrong with D compiling?

thanks!

On Saturday, 9 April 2022 at 02:56:50 UTC, dangbinghoo wrote:

OK, talked in Discord.

answer is clear: 1. D runtime is about 400KB on amd64 stripped. 2. phobos is set of big templates, writeln is expensive.
betterC print a helloworld only costs 6.3KB stripped.

thanks!