Re: [Tinycc-devel] Allow configuration of tcc libraries search path

[Thomas Preud'homme]

Le dimanche 10 juillet 2011 18:05:57, grischka a écrit :
> Thomas Preud'homme wrote:
> > I wrote the code yesterday. Please take a look. Still missing is the
> > handling of elf_interp but this must be added anyway without this
> > option.
> 
> Well, to me the better patches are those that make the code smaller
> rather than bigger ;)
Ok.
> 
> As I understand it is possible to support multilib without any special
> code in tcc.  Without CONFIG_TCC_MULTILIB_SUBDIR, AFF_MULTILIB,
> CONFIG_TCC_EXTRA_LDDIR, CONFIG_TCC_INCSUBDIR, just without anything
> "MULTI_EXTRA_SUB" whatsoever.
> 
> Do you think that is possible?
Yes, I think so if the include and library path can be colon seperated. I 
understand your concern about tcc to stay tiny. Without touching tcc itself, 
would it be ok to add a --multilib-subdir switch in configure which would set 
the library and include path correctly? That way the compiler itself would 
stay small but give a convenient interface at build time.
> 
> > By the way, is this normal that only X86_64 ld.so uses CONFIG_TCC_LDDIR
> > or does the other ld.so also lack the use of this macro?
> 
> Likely lack:
> $ git checkout release_0_9_25 tccelf.c
> 
>      /* name of ELF interpreter */
>      #if defined __FreeBSD__
>      static char elf_interp[] = "/usr/libexec/ld-elf.so.1";
>      #elif defined TCC_ARM_EABI
>      static char elf_interp[] = "/lib/ld-linux.so.3";
>      #elif defined(TCC_TARGET_X86_64)
>      static char elf_interp[] = "/lib/ld-linux-x86-64.so.2";
>      #elif defined(TCC_UCLIBC)
>      static char elf_interp[] = "/lib/ld-uClibc.so.0";
>      #else
>      static char elf_interp[] = "/lib/ld-linux.so.2";
>      #endif
> 
> --- grischka

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