On a system without ccache, f you:
INHERIT += "ccache"
bitbake libtool-cross
<remove INHERIT>
bitbake apmd
then it fails due to being unable to find ccache. The references to ccache are
coded into libtool-cross but the sstate checksum doesn't reflect this due to the
way the class is coded (output should be the same regardless).
The simplest solution is to remove references to ccache from the libtool script.
The output then works regardless of whether ccache is present or not. The
libtool-cross script is only used in a handful of cases (most of the time its
dynamically generated by autoconf) so any performance issue is minor.
(From OE-Core rev: ed550a49d2114c56e5bc033ecd0e83073d2d4067)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
predep_objects and postdep_objects are specifying the duplicate objects
which are better computed by gcc/g++ driver, since we want to generate
PIE, PIC and non-PIC combinations, let gcc decide on this, since it
knows best about linker options to use in each of these situations.
When we defer the linker options to driver, we also need to remove
-nostdlib from linker commandline options.
Remove duplicate directory creation for ${D}${bindir_crossscripts}/
This fixes a frequent problem we see during -fpie links e.g.
|
/home/ubuntu/work/oe/openembedded-core/build/tmp-glibc/sysroots/qemux86-64/usr/include/c++/5.3.0/iostream:74:
undefined reference to `__dso_handle'
|
/home/ubuntu/work/oe/openembedded-core/build/tmp-glibc/sysroots/x86_64-linux/usr/libexec/x86_64-oe-linux/gcc/x86_64-oe-linux/5.3.0/ld:
.libs/cxx_channel.o: relocation R_X86_64_PC32 against undefined hidden
symbol `__dso_handle' can not be used when making a shared object
|
/home/ubuntu/work/oe/openembedded-core/build/tmp-glibc/sysroots/x86_64-linux/usr/libexec/x86_64-oe-linux/gcc/x86_64-oe-linux/5.3.0/ld:
final link failed: Bad value
After this change libtool gets changed as below
old_archive_from_expsyms_cmds=""
# Commands used to build a shared archive.
-archive_cmds="\$CC \$pic_flag -shared -nostdlib \$predep_objects
\$libobjs \$deplibs \$postdep_objects \$compiler_flags \$wl-soname
\$wl\$soname -o \$lib"
-archive_expsym_cmds="\$CC \$pic_flag -shared -nostdlib \$predep_objects
\$libobjs \$deplibs \$postdep_objects \$compiler_flags \$wl-soname
\$wl\$soname \$wl-retain-symbols-file \$wl\$export_symbols -o \$lib"
+archive_cmds="\$CC \$pic_flag -shared \$predep_objects \$libobjs
\$deplibs \$postdep_objects \$compiler_flags \$wl-soname \$wl\$soname -o
\$lib"
+archive_expsym_cmds="\$CC \$pic_flag -shared \$predep_objects
\$libobjs \$deplibs \$postdep_objects \$compiler_flags \$wl-soname
\$wl\$soname \$wl-retain-symbols-file \$wl\$export_symbols -o \$lib"
# Commands used to build a loadable module if different from building
# a shared archive.
@@ -11908,8 +11908,8 @@
# Dependencies to place before and after the objects being linked to
# create a shared library.
-predep_objects="/home/ubuntu/work/oe/openembedded-core/build/tmp-glibc/sysroots/qemux86-64/usr/lib/../lib/Scrt1.o
/home/ubuntu/work/oe/openembedded-core/build/tmp-glibc/sysroots/qemux86-64/usr/lib/../lib/crti.o
/home/ubuntu/work/oe/openembedded-core/build/tmp-glibc/sysroots/qemux86-64/usr/lib/../lib/x86_64-oe-linux/5.3.0/crtbeginS.o"
-postdep_objects="/home/ubuntu/work/oe/openembedded-core/build/tmp-glibc/sysroots/qemux86-64/usr/lib/../lib/x86_64-oe-linux/5.3.0/crtendS.o
/home/ubuntu/work/oe/openembedded-core/build/tmp-glibc/sysroots/qemux86-64/usr/lib/../lib/crtn.o"
+predep_objects=""
+postdep_objects=""
predeps=""
postdeps="-lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc"
(From OE-Core rev: e1b45cb8e15458dde21f5e86ea1cbb619fb5c4cf)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
