Re: [PATCH] BaseTools/tools_def IA32: disable PIE code generation explicitly

[Ard Biesheuvel <ard.biesheuvel@linaro.org>]

On 11 June 2018 at 10:52, Ard Biesheuvel <ard.biesheuvel@linaro.org> wrote:
> On 11 June 2018 at 10:38, Gao, Liming <liming.gao@intel.com> wrote:
>> Ard:
>>   Do you mean the default GCC compiler disables PIC and PIE for IA32 arch? But now, some distribution GCC compiler enables PIC and PIE by default. So, we have to obviously disable PIC and PIE in tools_def.txt.
>>
>
> Yes. On my x86 Ubuntu 18.04 LTS system:
>
> $ gcc -v
> Using built-in specs.
> COLLECT_GCC=gcc
> COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/7/lto-wrapper
> OFFLOAD_TARGET_NAMES=nvptx-none
> OFFLOAD_TARGET_DEFAULT=1
> Target: x86_64-linux-gnu
> Configured with: ../src/configure -v --with-pkgversion='Ubuntu
> 7.3.0-16ubuntu3' --with-bugurl=file:///usr/share/doc/gcc-7/README.Bugs
> --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++
> --prefix=/usr --with-gcc-major-version-only
> --with-as=/usr/bin/x86_64-linux-gnu-as
> --with-ld=/usr/bin/x86_64-linux-gnu-ld --program-suffix=-7
> --program-prefix=x86_64-linux-gnu- --enable-shared
> --enable-linker-build-id --libexecdir=/usr/lib
> --without-included-gettext --enable-threads=posix --libdir=/usr/lib
> --enable-nls --with-sysroot=/ --enable-clocale=gnu
> --enable-libstdcxx-debug --enable-libstdcxx-time=yes
> --with-default-libstdcxx-abi=new --enable-gnu-unique-object
> --disable-vtable-verify --enable-libmpx --enable-plugin
> --enable-default-pie --with-system-zlib --with-target-system-zlib
> --enable-objc-gc=auto --enable-multiarch --disable-werror
> --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32
> --enable-multilib --with-tune=generic
> --enable-offload-targets=nvptx-none --without-cuda-driver
> --enable-checking=release --build=x86_64-linux-gnu
> --host=x86_64-linux-gnu --target=x86_64-linux-gnu
> Thread model: posix
> gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)
>
>
> Notice the '--enable-default-pie' 4 lines from the bottom.
>

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