PING: [PATCH] Add --enable-static-pie to build static PIE

[H.J. Lu]

On 9/28/17, Markus Trippelsdorf <markus@trippelsdorf.de> wrote:
> On 2017.09.27 at 01:30 -0700, H.J. Lu wrote:
>> No separate PIE copy of libc.a, is used for static PIE to minimize
>> GCC driver change.  To improve system security, glibc can be built with
>> --enable-static-pie, and the same libc.a can be used to build both static
>> executable and static PIE.
>
> It doesn't work:
>
>  ~ % echo "int main(){}" | gcc -x c - -static
> /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.1/../../../../lib64/libc.a(dl-support.o):
> In function `elf_machine_load_address':
> /home/markus/glibc/elf/../sysdeps/x86_64/dl-machine.h:59: undefined
> reference to `_DYNAMIC'
> /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.1/../../../../lib64/libc.a(dl-support.o):
> In function `elf_get_dynamic_info':
> /home/markus/glibc/elf/get-dynamic-info.h:48: undefined reference to
> `_DYNAMIC'
> /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.1/../../../../x86_64-pc-linux-gnu/bin/ld:
> a.out: hidden symbol `_DYNAMIC' isn't defined
> /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.1/../../../../x86_64-pc-linux-gnu/bin/ld:
> final link failed: Bad value
> collect2: error: ld returned 1 exit status
>

Thanks for your test.   Fixed on hjl/pie/static branch.  I am
enclosing the updated
--enable-static-pie patch.


-- 
H.J.
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