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Re: PATCH] PR target/65612: Multiversioning doesn't work with DSO nor PIE

From: Jack Howarth <howarth dot at dot gcc at gmail dot com>
To: "H.J. Lu" <hjl dot tools at gmail dot com>
Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>, Uros Bizjak <ubizjak at gmail dot com>
Date: Mon, 30 Mar 2015 23:09:34 -0400
Subject: Re: PATCH] PR target/65612: Multiversioning doesn't work with DSO nor PIE
Authentication-results: sourceware.org; auth=none
References: <20150330022527 dot GA4148 at gmail dot com> <CAMe9rOrUpMmt8XyqO9fXZB-Bn+tRs-AKHTaQzu7jeGCZFXen8g at mail dot gmail dot com> <CAMe9rOp_LfJ8C4Xh4NoRD=rTutNCeqwN_OV=8+c5rFfnRHbV_g at mail dot gmail dot com> <CAMe9rOrGCRJhWpNT0hMJwKCG2+vaDsaRou7JV0tdjiANnmRm=g at mail dot gmail dot com> <CAJMcOU8nON6S=+be8C94F_tB8-VPCusa8VrEq_f5P2PZCdk7vg at mail dot gmail dot com> <CAMe9rOo2ORmyvndySKr3vzEQmZScpKQfnVVw7HW94BXvPFJqdQ at mail dot gmail dot com>

H.J.,
   This still breaks the darwin bootstrap but differently.

ar  rc libgcc_eh.a $objects
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib:
file: libgcc_eh.a(unwind-sjlj.o) has no symbols
ranlib libgcc_eh.a
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib:
file: libgcc_eh.a(unwind-sjlj.o) has no symbols
/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir/./gcc/xgcc
-B/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir/./gcc/
-B/sw/lib/gcc5/x86_64-apple-darwin14.3.0/bin/
-B/sw/lib/gcc5/x86_64-apple-darwin14.3.0/lib/ -isystem
/sw/lib/gcc5/x86_64-apple-darwin14.3.0/include -isystem
/sw/lib/gcc5/x86_64-apple-darwin14.3.0/sys-include    -g -O2 -m32 -O2
-g -O2 -DIN_GCC    -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual
-Wno-format -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition  -isystem ./include   -pipe -fno-common -g
-DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector   -pipe
-fno-common -I. -I. -I../../.././gcc
-I../../../../gcc-5-20150330/libgcc
-I../../../../gcc-5-20150330/libgcc/.
-I../../../../gcc-5-20150330/libgcc/../gcc
-I../../../../gcc-5-20150330/libgcc/../include  -DHAVE_CC_TLS
-DUSE_EMUTLS -o cpuinfo_s.o -MT cpuinfo_s.o -MD -MP -MF cpuinfo_s.dep
-DSHARED  -c ../../../../gcc-5-20150330/libgcc/config/i386/cpuinfo.c
{standard input}:3:Unknown pseudo-op: .symver
{standard input}:3:Rest of line ignored. 1st junk character valued 95 (_).
{standard input}:4:Unknown pseudo-op: .symver
{standard input}:4:Rest of line ignored. 1st junk character valued 95 (_).
../../../../gcc-5-20150330/libgcc/shared-object.mk:18: recipe for
target 'cpuinfo_s.o' failed
make[5]: *** [cpuinfo_s.o] Error 1
make[5]: Leaving directory
'/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir/x86_64-apple-darwin14.3.0/i386/libgcc'
Makefile:1174: recipe for target 'multi-do' failed
make[4]: *** [multi-do] Error 1
make[4]: Leaving directory
'/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir/x86_64-apple-darwin14.3.0/libgcc'
Makefile:117: recipe for target 'all-multi' failed
make[3]: *** [all-multi] Error 2
make[3]: Leaving directory
'/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir/x86_64-apple-darwin14.3.0/libgcc'
Makefile:14820: recipe for target 'all-stage1-target-libgcc' failed
make[2]: *** [all-stage1-target-libgcc] Error 2
make[2]: Leaving directory '/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir'
Makefile:20760: recipe for target 'stage1-bubble' failed
make[1]: *** [stage1-bubble] Error 2
make[1]: Leaving directory '/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir'
Makefile:21064: recipe for target 'bootstrap' failed
make: *** [bootstrap] Error 2

     Jack

On Mon, Mar 30, 2015 at 10:08 PM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Mon, Mar 30, 2015 at 5:53 PM, Jack Howarth <howarth.at.gcc@gmail.com> wrote:
>> HJ,
>>      This patch breaks the bootstrap on targets like darwin which
>> don't build libgcc_nonshared.a...
>>
>> if test -z "$objects"; then \
>>   echo 'int __libgcc_eh_dummy;' > eh_dummy.c; \
>>   /sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir/./gcc/xgcc
>> -B/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir/./gcc/
>> -B/sw/lib/gcc5/x86_64-apple-darwin14.3.0/bin/
>> -B/sw/lib/gcc5/x86_64-apple-darwin14.3.0/lib/ -isystem
>> /sw/lib/gcc5/x86_64-apple-darwin14.3.0/include -isystem
>> /sw/lib/gcc5/x86_64-apple-darwin14.3.0/sys-include    -g -O2 -m32 -O2
>> -g -O2 -DIN_GCC    -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual
>> -Wno-format -Wstrict-prototypes -Wmissing-prototypes
>> -Wold-style-definition  -isystem ./include   -pipe -fno-common -g
>> -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector   -pipe
>> -fno-common -I. -I. -I../../.././gcc
>> -I../../../../gcc-5-20150330/libgcc
>> -I../../../../gcc-5-20150330/libgcc/.
>> -I../../../../gcc-5-20150330/libgcc/../gcc
>> -I../../../../gcc-5-20150330/libgcc/../include  -DHAVE_CC_TLS
>> -DUSE_EMUTLS -fvisibility=hidden -DHIDE_EXPORTS -c eh_dummy.c \
>>      -o eh_dummy.o; \
>>   objects=eh_dummy.o; \
>> fi; \
>> ar  rc libgcc_nonshared.a $objects
>> ar: cpuinfo.o: No such file or directory
>> Makefile:905: recipe for target 'libgcc_nonshared.a' failed
>> make[5]: *** [libgcc_nonshared.a] Error 1
>> make[5]: Leaving directory
>> '/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir/x86_64-apple-darwin14.3.0/i386/libgcc'
>> Makefile:1168: recipe for target 'multi-do' failed
>> make[4]: *** [multi-do] Error 1
>> make[4]: Leaving directory
>> '/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir/x86_64-apple-darwin14.3.0/libgcc'
>> Makefile:117: recipe for target 'all-multi' failed
>> make[3]: *** [all-multi] Error 2
>> make[3]: Leaving directory
>> '/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir/x86_64-apple-darwin14.3.0/libgcc'
>> Makefile:14820: recipe for target 'all-stage1-target-libgcc' failed
>> make[2]: *** [all-stage1-target-libgcc] Error 2
>> make[2]: Leaving directory '/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir'
>> Makefile:20760: recipe for target 'stage1-bubble' failed
>> make[1]: *** [stage1-bubble] Error 2
>> make[1]: Leaving directory '/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir'
>> Makefile:21064: recipe for target 'bootstrap' failed
>> make: *** [bootstrap] Error 2
>>
>>           Jack
>>
>
> This one works.  I need to add $(LIB2ADDNONSHARED) $(LIB2ADDSHARED)
> to iter-items and handle duplicated items in them.
>
> --
> H.J.

Follow-Ups:
- Re: PATCH] PR target/65612: Multiversioning doesn't work with DSO nor PIE
  - From: H.J. Lu

References:
- PATCH] PR target/65612: Multiversioning doesn't work with DSO nor PIE
  - From: H.J. Lu
- Re: PATCH] PR target/65612: Multiversioning doesn't work with DSO nor PIE
  - From: H.J. Lu
- Re: PATCH] PR target/65612: Multiversioning doesn't work with DSO nor PIE
  - From: H.J. Lu
- Re: PATCH] PR target/65612: Multiversioning doesn't work with DSO nor PIE
  - From: H.J. Lu
- Re: PATCH] PR target/65612: Multiversioning doesn't work with DSO nor PIE
  - From: Jack Howarth
- Re: PATCH] PR target/65612: Multiversioning doesn't work with DSO nor PIE
  - From: H.J. Lu

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