From http://gcc.gnu.org/ml/gcc-testresults/2006-03/msg00084.html
there are === libmudflap tests === Running target unix FAIL: libmudflap.c++/pass41-frag.cxx (test for excess errors) WARNING: libmudflap.c++/pass41-frag.cxx compilation failed to produce executable FAIL: libmudflap.c++/pass41-frag.cxx (-O) (test for excess errors) WARNING: libmudflap.c++/pass41-frag.cxx (-O) compilation failed to produce executable FAIL: libmudflap.c++/pass41-frag.cxx (-O2) (test for excess errors) WARNING: libmudflap.c++/pass41-frag.cxx (-O2) compilation failed to produce executable FAIL: libmudflap.c++/pass41-frag.cxx (-O3) (test for excess errors) WARNING: libmudflap.c++/pass41-frag.cxx (-O3) compilation failed to produce executable FAIL: ctors-12 linkage FAIL: ctors-21 linkage WARNING: program timed out. FAIL: ctors-12 execution WARNING: program timed out. FAIL: ctors-21 execution FAIL: ctors-12 linkage -static FAIL: ctors-21 linkage -static WARNING: program timed out. FAIL: ctors-12 execution -static WARNING: program timed out. FAIL: ctors-21 execution -static FAIL: ctors-12 linkage -O2 FAIL: ctors-21 linkage -O2 WARNING: program timed out. FAIL: ctors-12 execution -O2 WARNING: program timed out. FAIL: ctors-21 execution -O2 FAIL: ctors-12 linkage -O3 FAIL: ctors-21 linkage -O3 WARNING: program timed out. FAIL: ctors-12 execution -O3 WARNING: program timed out. FAIL: ctors-21 execution -O3 But Linux/x86 and Linux/x86-64 have no problems. The error message looks like pass41-frag.o: In function `global constructors keyed to 0_main':/net/gnu-13/export/gnu/src/gcc-4.1-blended/gcc/libmudflap/testsuite/libmudflap.c++/pass41-frag.cxx:13: undefined reference to `std::ios_base::_S_local_word_size' :/net/gnu-13/export/gnu/src/gcc-4.1-blended/gcc/libmudflap/testsuite/libmudflap.c++/pass41-frag.cxx:13: undefined reference to `std::ios_base::_S_local_word_size' :/net/gnu-13/export/gnu/src/gcc-4.1-blended/gcc/libmudflap/testsuite/libmudflap.c++/pass41-frag.cxx:13: undefined reference to `std::__ios_flags::_S_trunc' :/net/gnu-13/export/gnu/src/gcc-4.1-blended/gcc/libmudflap/testsuite/libmudflap.c++/pass41-frag.cxx:13: undefined reference to `std::__ios_flags::_S_trunc' :/net/gnu-13/export/gnu/src/gcc-4.1-blended/gcc/libmudflap/testsuite/libmudflap.c++/pass41-frag.cxx:13: undefined reference to `std::__ios_flags::_S_out' ... Those undefined symbols are from things like: struct __ios_flags { typedef short __int_type; static const __int_type _S_boolalpha = 0x0001; static const __int_type _S_dec = 0x0002; static const __int_type _S_fixed = 0x0004; ... Mudflap generates .mii addl r35 = @ltoffx(_ZNSt11__ios_flags12_S_boolalphaE#), r1 addl r38 = @ltoffx(.LC72), r1 ;; nop 0 .mmb ld8.mov r35 = [r35], _ZNSt11__ios_flags12_S_boolalphaE# ld8.mov r38 = [r38], .LC72 br.call.sptk.many b0 = __mf_register# I don't see why it should even bother. This problem doesn't exist in 4.2. Does anyone know which patch fixes it? -- Summary: [4.1]: libmudflap failures on ia64 Product: gcc Version: 4.1.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: hjl at lucon dot org GCC build triplet: ia64-unknown-linux-gnu GCC host triplet: ia64-unknown-linux-gnu GCC target triplet: ia64-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26532