Hello, please provide info which patches you applied to GCC and which version of uClibc you are testing and which arch is the tested one. Minimal requirements: 1. GCC needs to be patched to not use TLS for the guard 2. GCC needs to be patched to recognize uClibc as a valid SSP supporting library 3. uClibc should be trunk (not nptl), haven´t checked lately if any stable version would behave properly 4. uClibc might need some patch for ssp[-local].c to use inlined syscalls where possible 5. binutils needs support for AS_NEEDED
Static compiles might fail, first check that dynamic ones work. Check your final binaries, that they make use of ld-uClibc.so.0 (readelf -d <...> | grep DT_NEEDED. Try to test binaries, that do not use threads, since those might produce unreliable results. Peter -------- Original-Nachricht -------- > Datum: Sun, 8 Nov 2009 13:25:47 +0300 > Von: Mwanguhya Daniel Murungi <[email protected]> > An: [email protected] > Betreff: uClibc and SSP > Hello, > > Am building a system using HLFS (hardened Linux from scratch) and uClibc. > I > would like to use uClibc's SSP feature but whenever I enable it, any > program > compiled with -fstack-protector and -fstack-protector-all seg faults. > > The seg faults do not occur when I disable uClibc's SSP and use libssp > from > GCC. The reason I no longer want to link against libssp is because binary > size increases by about 8k. > > Patching GCC with the gcc-fstack-protector patch (from Robert Connolly) > doesnot help either. > > How do i get uClibc's SSP to work? Am using GCC 4.2.4 and uClibc 0.9.30.1 > > -- > Mwanguhya Daniel Murungi > Makerere University [ DICTS ] > P.O.Box 7062, Wandegeya > Kampala > Uganda > > MYTH: Knowledge is power > TRUTH: APPLIED Knowledge is power > _______________________________________________ > uClibc mailing list > [email protected] > http://lists.busybox.net/mailman/listinfo/uclibc -- Jetzt kostenlos herunterladen: Internet Explorer 8 und Mozilla Firefox 3.5 - sicherer, schneller und einfacher! http://portal.gmx.net/de/go/chbrowser _______________________________________________ uClibc mailing list [email protected] http://lists.busybox.net/mailman/listinfo/uclibc
