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    SubjectRe: 2.6.17-mm5 -- Busted toolchain? -- usr/klibc/exec_l.c:59: undefined reference to `__stack_chk_fail'
     >> > > >
    > >> > > > KLIBCLD usr/klibc/libc.so
    > >> > > > usr/klibc/execl.o: In function `execl':
    ...
    >
    > >https://wiki.ubuntu.com/GccSsp
    > >
    > >It appears that Ubuntu's Edgy Eft (the development tree) now contains
    > >"Stack Smashing Protection" enabled by default. I found a web page
    > >that states that -fno-stack-protector can be used to disable this
    > >functionality. Interestingly, another web page stated that SSP has
    > >been enabled in Redhat compilers for a long time and is now also
    > >enabled in Debian SID. Perhaps -fno-stack-protector should be added
    > >to the kernel build be default?
    >
    > Darn it. I don't seem to know how to get -fno-stack-protector to
    > work. I ran:
    > export CFLAGS=-fno-stack-protector
    > make mrproper
    > cp ../.config .
    > make oldconfig
    > CFLAGS=-fno-stack-protector make all install modules modules_install
    >
    > But I am still getting the errors. Anyone know what I am doing wrong?

    For klibc you need to patch scripts/Kbuild.klibc

    Appending it to KLIBCWARNFLAGS seems the right place.

    Do you know from what gcc version we can start using -fno-stack-protector?

    Sam
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