Le lundi 19 septembre 2011 18:49:32, [email protected] a écrit : > Hello, > > I had to apply the following patch to be able to use my uclibc instance > which contains relative library file names in the libc.so linker script. > > It does not work otherwise, tcc complains about unrecognized file format. > (It worked however if the script contained only absolute file names.) > > The patch: > ---- > --- tccelf.c.ori2 2011-09-19 13:20:59.000000000 +0200 > +++ tccelf.c 2011-09-19 14:33:30.000000000 +0200 > @@ -3005,7 +3005,7 @@ > } else { > /* TODO: Implement AS_NEEDED support. Ignore it for now */ > if (!as_needed) { > - ret = ld_add_file(s1, filename, libname); > + ret = tcc_add_dll(s1, filename, 0); > if (ret) > goto lib_parse_error; > if (group) { > ---- > > The linker script in question was > ..../lib/libc.so: > ---- > /* GNU ld script > * Use the shared library, but some functions are only in > * the static library, so try that secondarily. */ > OUTPUT_FORMAT("elf32-i386", "elf32-i386", > "elf32-i386") > GROUP ( libc.so.0 uclibc_nonshared.a AS_NEEDED ( ld-uClibc.so.0 ) ) > ----
Good catch. > > Hope this change makes sense. It does but it's incomplete. You should tcc_add_dll after tcc_add_file_internal because each file must be searched first in current directory and then in the library search path according to [1]. Hence you should modify ld_add_file to use tcc_add_dll instead of if (filename_to_libname()) tcc_add_library. Hence you can also remove filename_to_libname function altogether. I've just noticed the function should be a bit more constraint to reject files like AS_NEEDED(AS_NEEDED(…)). Also libname_to_filename should always return .a for non PE systems, still according to [1]. But don't bother to do this part, I'll do it myself one day. [1] http://www.delorie.com/gnu/docs/binutils/ld_12.html > > Regards, > Rune Thanks a lot. Thomas Preud'homme > > > _______________________________________________ > Tinycc-devel mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/tinycc-devel
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