On Thu, Aug 6, 2015 at 7:02 PM, Khem Raj <raj.k...@gmail.com> wrote:
> On Thu, Aug 6, 2015 at 12:41 PM, Andre McCurdy <armccu...@gmail.com> wrote:
>> uclibc fails to build when security_flags.inc is used.
>>
>> | i686-rdk-linux-uclibc-gcc -m32 -march=core2 -mtune=core2 -msse3
>> -mfpmath=sse --sysroot=/build-vbox32/tmp/sysroots/vbox32-tcbootstrap
>> -Wl,-EL -Wl,--sort-common -Wl,--sort-section=alignment -m32 -shared
>> -Wl,--warn-common -Wl,--warn-once -Wl,-z,combreloc -Wl,-z,relro -Wl,-z,now
>> -Wl,--hash-style=gnu -Wl,-z,defs -Wl,-init,__uClibc_init
>> -Wl,-soname=libc.so.0 -nostdlib -o lib/libuClibc-0.9.34-git.so
>> -Wl,--whole-archive libc/libc_so.a -Wl,--no-whole-archive ./lib/interp.os
>> ./lib/ld-uClibc.so.0 ./lib/uclibc_nonshared.a
>> /build-vbox32/tmp/sysroots/vbox32-tcbootstrap/usr/lib/i686-rdk-linux-uclibc/4.9.3/libgcc.a
>> | libc/libc_so.a(sigaction.os): In function `__libc_sigaction':
>> |
>> /build-vbox32/tmp/work/core2-32-rdk-linux-uclibc/uclibc/0.9.33+gitAUTOINC+48a0006012-r9/git/libc/sysdeps/linux/i386/sigaction.c:37:
>> undefined reference to `__stack_chk_guard'
>> |
>> /build-vbox32/tmp/work/core2-32-rdk-linux-uclibc/uclibc/0.9.33+gitAUTOINC+48a0006012-r9/git/libc/sysdeps/linux/i386/sigaction.c:49:
>> undefined reference to `__stack_chk_fail_local'
>> | collect2: error: ld returned 1 exit status
>> | make: *** [lib/libc.so] Error 1
>
> This fix is papering over real problem. this means gcc is expecting
> ssp implementation from libc but is not detecting it rightly can you
> try passing gcc_cv_libc_provides_ssp=yes to help it configure
OK, so I tried adding:
export gcc_cv_libc_provides_ssp = 'yes'
to gcc-configure-common.inc and uclibc does then seem to build OK
without needing to provide uclibc specific SECURITY_CFLAGS.
The build still fails later (gcc-runtime fails while configuring
libgomp) but getting beyond building uclibc with security_flags.inc
enabled seems like progress.
>>
>> Clearing SECURITY_CFLAGS completely may not be the best approach, but
>> it's the approach taken for glibc, so try it for uclibc too.
>>
>> Signed-off-by: Andre McCurdy <armccu...@gmail.com>
>> ---
>> meta/conf/distro/include/security_flags.inc | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> diff --git a/meta/conf/distro/include/security_flags.inc
>> b/meta/conf/distro/include/security_flags.inc
>> index 3724972..a107657 100644
>> --- a/meta/conf/distro/include/security_flags.inc
>> +++ b/meta/conf/distro/include/security_flags.inc
>> @@ -84,6 +84,8 @@ SECURITY_CFLAGS_pn-python-smartpm =
>> "${SECURITY_NO_PIE_CFLAGS}"
>> SECURITY_CFLAGS_pn-python-numpy = "${SECURITY_NO_PIE_CFLAGS}"
>> SECURITY_CFLAGS_pn-tcl = "${SECURITY_NO_PIE_CFLAGS}"
>> SECURITY_CFLAGS_pn-tiff = "${SECURITY_NO_PIE_CFLAGS}"
>> +SECURITY_CFLAGS_pn-uclibc = ""
>> +SECURITY_CFLAGS_pn-uclibc-initial = ""
>> SECURITY_CFLAGS_pn-valgrind = "${SECURITY_NO_PIE_CFLAGS}"
>> SECURITY_CFLAGS_pn-webkit-gtk = "${SECURITY_NO_PIE_CFLAGS}"
>> SECURITY_CFLAGS_pn-zlib = "${SECURITY_NO_PIE_CFLAGS}"
>> --
>> 1.9.1
>>
>> --
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