Tiny CC - Tiny C compiler, Build extremely small binaries

Hi friends,

Here is an example project created with the Tiny C Compiler. This tool creates very small C executables :

http://fabrice.bellard.free.fr/tcc

Attached File ( Number of downloads: 6 )
 tcc1.zip

Thanks Vortex for sharing

libtcc1.a, the C runtime startup library supplied with TinyCC has two entry points _start and _winstart for console and GUI applications respectively. The compiler emits ELF object files so I decided to translate my own tiny C runtime startup modules to C modules with inline assembly. TinyCC accepts only the AT&T syntax to write inline assembly. Unfortunately, the compiler ignores the __declspec(naked) statement disabling the standard prologue\epilogue code. The solution was to patch the object modules to remove the overhead. Without removing the prologue\epilogue code, I could not terminate the modules with the ExitProcess function. Finally, I was able to eliminate the msvcrt.dll dependency and the size of the demo executable hello_win.exe decreased from 3584 bytes to 3072 bytes :

I could not find a way to use my static library crt0ELF.a with TinyCC. The compiler emits the following error message :

crt0ELF.a is a static library including the two startup modules for console and GUI applications. I used the librarian ar.exe supplied with the MinGW package to build the static library :

Is there a way to use static libraries with TinyCC?

Attached File ( Number of downloads: 1 )
 tcc_crt0.zip

Vortex, this may sound dumb as i have never played with Tiny CC, but i thing the __declspec(naked) statement is Microsoft compiler specific. I really don't know if it's supported by Tiny CC.


Also, according to this page, the -B option specifies whether bindings of libraries for linking are static or dynamic.

-B [static|dynamic].

Hope this helps.

Hi Samael,

Many thanks for your help.

It's true that __declspec(naked) is specific to MS compilers but it's interesting to note that the Tiny C compiler does not display any warning message if a function is declared with __declspec(naked) The compiler ignores the statement.

The Tiny C compiler does not support the -b switch :