diff options
| -rw-r--r-- | toolchain/gcc/4.4.4/powerpc-link-with-math-lib.patch.conditional | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/toolchain/gcc/4.4.4/powerpc-link-with-math-lib.patch.conditional b/toolchain/gcc/4.4.4/powerpc-link-with-math-lib.patch.conditional new file mode 100644 index 000000000..3fe8757d7 --- /dev/null +++ b/toolchain/gcc/4.4.4/powerpc-link-with-math-lib.patch.conditional @@ -0,0 +1,137 @@ +http://gcc.gnu.org/ml/gcc-patches/2008-10/msg00269.html + +On glibc the libc.so carries a copy of the math function copysignl() but +on uClibc math functions like copysignl() live in libm. Since libgcc_s +contains unresolved symbols, any attempt to link against libgcc_s +without explicitely specifying -lm fails, resulting in a broken +bootstrap of the compiler. + + +diff -rdup gcc-4.4.0.old/gcc/config/t-slibgcc-elf-ver gcc-4.4.0/gcc/config/t-slibgcc-elf-ver + +diff -durN gcc-4.4.4.orig/gcc/config/t-slibgcc-elf-ver gcc-4.4.4/gcc/config/t-slibgcc-elf-ver +--- gcc-4.4.4.orig/gcc/config/t-slibgcc-elf-ver 2010-01-04 16:13:08.000000000 +0100 ++++ gcc-4.4.4/gcc/config/t-slibgcc-elf-ver 2010-05-16 19:38:36.000000000 +0200 +@@ -9,7 +9,7 @@ + SHLIB_OBJS = @shlib_objs@ + SHLIB_DIR = @multilib_dir@ + SHLIB_SLIBDIR_QUAL = @shlib_slibdir_qual@ +-SHLIB_LC = -lc ++SHLIB_LC = @libgcc_libm@ -lc + SHLIB_MAKE_SOLINK = $(LN_S) $(SHLIB_SONAME) $(SHLIB_DIR)/$(SHLIB_SOLINK) + SHLIB_INSTALL_SOLINK = $(LN_S) $(SHLIB_SONAME) \ + $$(DESTDIR)$$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SOLINK) +diff -durN gcc-4.4.4.orig/libgcc/Makefile.in gcc-4.4.4/libgcc/Makefile.in +--- gcc-4.4.4.orig/libgcc/Makefile.in 2009-04-10 01:23:07.000000000 +0200 ++++ gcc-4.4.4/libgcc/Makefile.in 2010-05-16 19:38:36.000000000 +0200 +@@ -39,6 +39,7 @@ + decimal_float = @decimal_float@ + enable_decimal_float = @enable_decimal_float@ + fixed_point = @fixed_point@ ++LIBGCC_LIBM = @LIBGCC_LIBM@ + + host_noncanonical = @host_noncanonical@ + +@@ -787,9 +788,10 @@ + @multilib_dir@,$(MULTIDIR),$(subst \ + @shlib_objs@,$(objects),$(subst \ + @shlib_base_name@,libgcc_s,$(subst \ ++ @libgcc_libm@,$(LIBGCC_LIBM),$(subst \ + @shlib_map_file@,$(mapfile),$(subst \ + @shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(subst \ +- @shlib_slibdir@,$(shlib_slibdir),$(SHLIB_LINK)))))))) ++ @shlib_slibdir@,$(shlib_slibdir),$(SHLIB_LINK))))))))) + + libunwind$(SHLIB_EXT): $(libunwind-s-objects) $(extra-parts) + # @multilib_flags@ is still needed because this may use +diff -durN gcc-4.4.4.orig/libgcc/configure gcc-4.4.4/libgcc/configure +--- gcc-4.4.4.orig/libgcc/configure 2008-11-20 18:13:01.000000000 +0100 ++++ gcc-4.4.4/libgcc/configure 2010-05-16 19:38:36.000000000 +0200 +@@ -272,7 +272,7 @@ + PACKAGE_BUGREPORT='' + + ac_unique_file="static-object.mk" +-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS libgcc_topdir enable_shared slibdir INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA AWK build build_cpu build_vendor build_os host host_cpu host_vendor host_os host_noncanonical build_libsubdir build_subdir host_subdir target_subdir AR ac_ct_AR LIPO ac_ct_LIPO NM ac_ct_NM RANLIB ac_ct_RANLIB STRIP ac_ct_STRIP LN_S CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CPP decimal_float enable_decimal_float fixed_point vis_hide set_have_cc_tls tmake_file extra_parts asm_hidden_op LIBOBJS LTLIBOBJS' ++ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS libgcc_topdir enable_shared slibdir INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA AWK build build_cpu build_vendor build_os host host_cpu host_vendor host_os host_noncanonical build_libsubdir build_subdir host_subdir target_subdir AR ac_ct_AR LIPO ac_ct_LIPO NM ac_ct_NM RANLIB ac_ct_RANLIB STRIP ac_ct_STRIP LN_S CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CPP decimal_float enable_decimal_float fixed_point vis_hide set_have_cc_tls LIBGCC_LIBM tmake_file extra_parts asm_hidden_op LIBOBJS LTLIBOBJS' + ac_subst_files='' + ac_pwd=`pwd` + +@@ -3547,6 +3547,39 @@ + fi + + ++# On powerpc libgcc_s references copysignl which is a libm function but ++# glibc apparently also provides it via libc as opposed to uClibc where ++# it lives in libm. ++echo "$as_me:$LINENO: checking for library containing copysignl" >&5 ++echo $ECHO_N "checking for library containing copysignl... $ECHO_C" >&6 ++if test "${libgcc_cv_copysignl_lib+set}" = set; then ++ echo $ECHO_N "(cached) $ECHO_C" >&6 ++else ++ ++ echo '#include <features.h>' > conftest.c ++ echo 'int the_libc = __UCLIBC__ + __powerpc__;' >> conftest.c ++ libgcc_cv_copysignl_lib="-lc" ++ if { ac_try='${CC-cc} -S conftest.c -o conftest.s 1>&5' ++ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 ++ (eval $ac_try) 2>&5 ++ ac_status=$? ++ echo "$as_me:$LINENO: \$? = $ac_status" >&5 ++ (exit $ac_status); }; } ++ then ++ libgcc_cv_copysignl_lib="-lm" ++ fi ++ rm -f conftest.* ++ ++fi ++echo "$as_me:$LINENO: result: $libgcc_cv_copysignl_lib" >&5 ++echo "${ECHO_T}$libgcc_cv_copysignl_lib" >&6 ++ ++case /${libgcc_cv_copysignl_lib}/ in ++ /-lm/) LIBGCC_LIBM="$LIBGCC_LIBM -lm" ;; ++ *) LIBGCC_LIBM= ;; ++esac ++ ++ + # Conditionalize the makefile for this target machine. + tmake_file_= + for f in ${tmake_file} +@@ -4267,6 +4300,7 @@ + s,@fixed_point@,$fixed_point,;t t + s,@vis_hide@,$vis_hide,;t t + s,@set_have_cc_tls@,$set_have_cc_tls,;t t ++s,@LIBGCC_LIBM@,$LIBGCC_LIBM,;t t + s,@tmake_file@,$tmake_file,;t t + s,@extra_parts@,$extra_parts,;t t + s,@asm_hidden_op@,$asm_hidden_op,;t t +diff -durN gcc-4.4.4.orig/libgcc/configure.ac gcc-4.4.4/libgcc/configure.ac +--- gcc-4.4.4.orig/libgcc/configure.ac 2008-11-20 18:13:01.000000000 +0100 ++++ gcc-4.4.4/libgcc/configure.ac 2010-05-16 19:38:36.000000000 +0200 +@@ -223,6 +223,27 @@ + fi + AC_SUBST(set_have_cc_tls) + ++# On powerpc libgcc_s references copysignl which is a libm function but ++# glibc apparently also provides it via libc as opposed to uClibc where ++# it lives in libm. ++AC_CACHE_CHECK ++ libgcc_cv_copysignl_lib, ++ echo '#include <features.h>' > conftest.c ++ echo 'int the_libc = __UCLIBC__ + __powerpc__;' >> conftest.c ++ libgcc_cv_copysignl_lib="-lc" ++ if AC_TRY_COMMAND(${CC-cc} -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD) ++ then ++ libgcc_cv_copysignl_lib="-lm" ++ fi ++ rm -f conftest.* ++ ]) ++ ++case /${libgcc_cv_copysignl_lib}/ in ++ /-lm/) LIBGCC_LIBM="$LIBGCC_LIBM -lm" ;; ++ *) LIBGCC_LIBM= ;; ++esac ++AC_SUBST(LIBGCC_LIBM) ++ + # Conditionalize the makefile for this target machine. + tmake_file_= + for f in ${tmake_file} |