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From: Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: Baby X is bor nagain
Date: Thu, 27 Jun 2024 15:45:59 -0700
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Keith Thompson <Keith.S.Thompson+u@gmail.com> writes:
> David Brown <david.brown@hesbynett.no> writes:
>> On 25/06/2024 22:13, Keith Thompson wrote:
>>> DFS <nospam@dfs.com> writes:
>>> [...]
>>>> Can you use tcc to generate assembly from a .c source file?
>>>>
>>>> similar to:
>>>>
>>>> $ gcc -S sourcefile.c
>>> No, tcc has no such option.
>>> I was able to get an assembly listing by running `tcc -c
>>> sourcefile.c`
>>> followed by `objdump -d sourcefile.o`.
>>
>> <https://godbolt.org> has tcc on its list of C compilers, and it shows
>> the generated assembly.  I don't know how it does this - perhaps using
>> this same method.  If people are interested in looking at the code
>> generated by tcc (or vast numbers of other compilers, versions and
>> targets), then godbolt is usually the easiest way to get it.
>>
>> And if anyone wants to know how they get the nice assembly out of the
>> compilers, the source code for godbolt is also freely available.
>
> https://godbolt.org/z/3b18qno37
>
> The assembly listing doesn't look like objdump output, and the output
> window on the lower right looks like tcc itself generated
> "/app/output.s".  A quick look at the source code was unhelpful.
>
> I've emailed Matt Goldbolt and asked him about this.

I got a reply from Matt Godbolt.  The assembly listing is objdump
output.  The web client filters it and displays it as if it were regular
output.

-- 
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
void Void(void) { Void(); } /* The recursive call of the void */