On Wed, Dec 24, 2014 at 4:06 AM, Andrew Haley <aph@xxxxxxxxxx> wrote:
> On 23/12/14 21:01, Cyd Haselton wrote:
>> It does. However, -ldl does not appear in the link-command section of
>> dumpspecs...specifically for libasan...as it does for the build
>> version (4.8.3)
>>
>> build version:
>> *snip*
>> %{!nostdlib:%{!nodefaultlibs:%{fsanitize=address:
>> %{static-libasan:-ldl -lpthread}
>> *snip*
>>
>> stage1 version
>> *snip*
>
> Can we see all of that, with 4.8 and 4.9? I think we may be getting
> close.
>
> Andrew.
>
Sure.
Here's the *link-command specs for 4.8:
*link_command:
%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S: %(linker)
%{!fno-use-linker-plugin:%{flto|flto=*|fuse-linker-plugin: -plugin
%(linker_plugin_file) -plugin-opt=%(lto_wrapper)
-plugin-opt=-fresolution=%u.res
%{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}}
}}%{flto|flto=*:%<fcompare-debug*} %{flto} %{flto=*} %l
%{pie:-pie} %{fuse-ld=*:-fuse-ld=%*} %X %{o*} %{e*} %{N} %{n} %{r}
%{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}}
%{static:} %{L*} %(mfwrap) %(link_libgcc)
%{!nostdlib:%{!nodefaultlibs:%{fsanitize=address:%{!shared:libasan_preinit%O%s}
%{static-libasan:%{!shared:-Bstatic --whole-archive -lasan
--no-whole-archive -Bdynamic}}%{!static-libasan:-lasan}}
%{fsanitize=thread:%{static-libtsan:%{!shared:-Bstatic --whole-archive
-ltsan --no-whole-archive -Bdynamic}}%{!static-libtsan:-ltsan}}}} %o
%{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}
%{fgnu-tm:%:include(libitm.spec)%(link_itm)} %(mflib)
%{fsplit-stack: --wrap=pthread_create}
%{fprofile-arcs|fprofile-generate*|coverage:-lgcov}
%{!nostdlib:%{!nodefaultlibs:%{fsanitize=address:
%{static-libasan:-ldl -lpthread} %{static:%ecannot specify -static
with -fsanitize=address}} %{fsanitize=thread: %{static-libtsan:-ldl
-lpthread} %{!pie:%{!shared:%e-fsanitize=thread linking must be
done with -pie or -shared}}}}}
%{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}
%{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}
And here's the *link-command for stage1 4.9
*link_command:
%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S: %(linker)
%{!fno-use-linker-plugin:%{!fno-lto: -plugin %(linker_plugin_file)
-plugin-opt=%(lto_wrapper) -plugin-opt=-fresolution=%u.res
%{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}}
}}%{flto|flto=*:%<fcompare-debug*} %{flto} %{fno-lto}
%{flto=*} %l %{pie:-pie} %{fuse-ld=*:-fuse-ld=%*} %X %{o*} %{e*}
%{N} %{n} %{r} %{s} %{t} %{u*} %{z} %{Z}
%{!nostdlib:%{!nostartfiles:%S}} %{!nostdlib:%{fvtable-verify=std:
-lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}
%{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start
-u_vtable_map_vars_end}} %{static:} %{L*} %(mfwrap) %(link_libgcc)
%{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):%{!shared:libasan_preinit%O%s}
%{static-libasan:%{!shared:-Bstatic --whole-archive -lasan
--no-whole-archive -Bdynamic}}%{!static-libasan:-lasan}}
%{%:sanitize(thread):%{static-libtsan:%{!shared:-Bstatic
--whole-archive -ltsan --no-whole-archive
-Bdynamic}}%{!static-libtsan:-ltsan}}
%{%:sanitize(leak):%{static-liblsan:%{!shared:-Bstatic --whole-archive
-llsan --no-whole-archive -Bdynamic}}%{!static-liblsan:-llsan}}}} %o
%{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}
%{fcilkplus:%:include(libcilkrts.spec)%(link_cilkrts)}
%{fgnu-tm:%:include(libitm.spec)%(link_itm)} %(mflib)
%{fsplit-stack: --wrap=pthread_create}
%{fprofile-arcs|fprofile-generate*|coverage:-lgcov}
%{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):
%{static-libasan:%:include(libsanitizer.spec)%(link_libasan)}
%{static:%ecannot specify -static with -fsanitize=address}}
%{%:sanitize(thread):
%{static-libtsan:%:include(libsanitizer.spec)%(link_libtsan)}
%{!pie:%{!shared:%e-fsanitize=thread linking must be done with -pie or
-shared}}} %{%:sanitize(undefined):%{static-libubsan:-Bstatic}
-lubsan %{static-libubsan:-Bdynamic}
%{static-libubsan:%:include(libsanitizer.spec)%(link_libubsan)}}
%{%:sanitize(leak):
%{static-liblsan:%:include(libsanitizer.spec)%(link_liblsan)}}}}
%{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}
%{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}
