Re: [gentoo-alt] rap experiments

[François Bissey]

On 20/01/17 21:24, Francois Bissey wrote:
>
>> On 20/01/2017, at 20:57, Benda Xu <heroxbd@g.o> wrote:
>>
>> Hi,
>>
>> Francois Bissey <francois.bissey@×××××××××××××.nz> writes:
>>
>>> Very much like the bootstrapping described in LFS and in line with
>>> the way IBM does things for its “advanced toolchain” for power7/8.
>>> I actually have an alternate toolchain provided by IBM the last one
>>> for SLES11 provides glibc-2.17+gcc-4.8.5+. gcc is patched to find ld64.so.1
>>> in the right place _and_ a rpath is added at the spec level also.
>>> Anyway gcc/config/rs6000 is a bit more complicated than the i386 one
>>> and for some reasons bits are missed by the sed line:
>>> grep "_DYNAMIC_LINKER." gcc/config/rs6000/linux64.h
>>> #define GLIBC_DYNAMIC_LINKER32 "/shared/work_no_backup/ppc64-prefix/lib/ld.so.1"
>>> #define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv1:/lib64/ld64.so.1;:/lib64/ld64.so.2}”   <==
>>> #define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv2:/lib64/ld64.so.2;:/lib64/ld64.so.1}”   <==
>>> #define UCLIBC_DYNAMIC_LINKER32 "/shared/work_no_backup/ppc64-prefix/lib/ld-uClibc.so.0"
>>> #define UCLIBC_DYNAMIC_LINKER64 "/shared/work_no_backup/ppc64-prefix/lib/ld64-uClibc.so.0"
>>> #define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
>>> #define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}"
>>> #define GNU_USER_DYNAMIC_LINKER32 \
>>>  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32)
>>> #define GNU_USER_DYNAMIC_LINKER64 \
>>>  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64)
>>>  -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "}}"
>>>  -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "}}”
>>> That explains a lot.
>>
>> Yeah, the present sed phrase
>> "s,(_DYNAMIC_LINKER.*\")(/lib),\1${EPREFIX}\2," does not capture
>>
>>  #define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv1:/lib64/ld64.so.1;:/lib64/ld64.so.2}”
>>
>> We should write it
>>
>>  "/_DYNAMIC_LINKER/s,([\":])(/lib),\1${EPREFIX}\2,g"
>>

Your phrase works :) My feeble attempt with mine didn't.
gcc is merged and emerge is still going.

Francois