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From: bart <bc@freeuk.com>
Newsgroups: comp.lang.c
Subject: Re: C23 thoughts and opinions
Date: Thu, 30 May 2024 14:34:00 +0100
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On 30/05/2024 03:32, Lawrence D'Oliveiro wrote:
> On Wed, 29 May 2024 13:58:20 +0200, Bonita Montero wrote:
> 
>> I've got a small commandline-tool that makes a const'd char
>> -array from any binary file.
> 
> It seems to me it would be more efficient to use objcopy to turn that
> binary file directly into an object file with symbols accessible from C
> code defining its beginning and ending points. Then just link it into the
> executable.

None of my compilers, whether for C or anything else, generate object files.

However, suppose I wanted to link a file called 'logo.bmp' say, into my 
program, which consisted of a file called main.c.

What is the entire process using your suggestion? What do I put into 
main.c? Assume the data is represented by a char-array.


In my language, it would simply be this:

     []byte logobmp = binclude("logo.bmp")

Using my C extension, it might be this:

    uint8_t logobmp[] = strinclude("logo.bmp");

(I believe this will cope with embedded zeros, and the file size is 
obtainable with 'sizeof(logobmp)'.

With the new feature it might be this (I forget the exact syntax):

    uint8_t logobmp[] = {
       #embed "logo.bmp"
    };

Nothing else is needed; just compile as normal.

The point of the feature is avoid the palavar with 'objcopy', which is a 
utility with 100 different options, or messing with ones like xxd.