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{
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    "msgid": "<20260211191928.988805-1-adhemerval.zanella@linaro.org>",
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    "date": "2026-02-11T18:55:27",
    "name": "[0/5] Enable glibc build with LLVM compiler-rt and libunwind",
    "submitter": {
        "id": 66065,
        "url": "http://patchwork.ozlabs.org/api/people/66065/?format=api",
        "name": "Adhemerval Zanella",
        "email": "adhemerval.zanella@linaro.org"
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            "date": "2026-02-11T18:55:31",
            "name": "Enable glibc build with LLVM compiler-rt and libunwind",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/491898/mbox/"
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        "From": "Adhemerval Zanella <adhemerval.zanella@linaro.org>",
        "To": "libc-alpha@sourceware.org",
        "Cc": "Sam James <sam@gentoo.org>, Collin Funk <collin.funk1@gmail.com>,\n \"H . J . Lu\" <hjl.tools@gmail.com>",
        "Subject": "[PATCH 0/5] Enable glibc build with LLVM compiler-rt and libunwind",
        "Date": "Wed, 11 Feb 2026 15:55:27 -0300",
        "Message-ID": "<20260211191928.988805-1-adhemerval.zanella@linaro.org>",
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    },
    "content": "This patch series implements the necessary infrastructure changes to\nbuild glibc using a full LLVM-based toolchain, specifically replacing\nlibgcc with compiler-rt builtins and libunwind.\n\nHistorically, glibc has tightly coupled its build system and runtime\nassumptions to GCC's specific runtime libraries (libgcc.a, libgcc_eh.a,\nlibgcc_s.so).  This series decouples those dependencies by:\n\n 1. Providing missing soft-float exception handlers\n    (__sfp_handle_exceptions) that are absent in compiler-rt.\n\n 2. Parametrizing the build system to detect the compiler's runtime\n    library rather than hardcoding -lgcc.\n\n 3. Adapting the unwind-link facility to dynamically load and interact\n    with libunwind.so instead of libgcc_s.so.\n\nPlease note that this support is currently EXPERIMENTAL.  While the\nbuild completes and the resulting libc is functional for general use,\nthere are known gaps in the LLVM runtime implementation regarding\nfloating-point exception signaling and C++ library integration.\n\n  1. libc++ support is not tested: it does not yet enable building\n     against LLVM's C++ standard library (libc++).  The build\n     environment still relies on libstdc++ for any C++ dependencies\n     (e.g., testsuite components).  Work on enabling libc++ support is\n     ongoing.\n\n  2. The libclang_rt builtins library does not currently generate proper\n     floating-point exceptions for _Float128 (x86_64 and aarch64).\n     This leads to lot failures in math tests.\n\n  3. iThere are additional regressions in the testsuite.\n\nBelow is a summary of the test results on x86_64 and aarch64 using\nclang-22 built with -DCLANG_DEFAULT_RTLIB=compiler-rt and\n-DCLANG_DEFAULT_UNWINDLIB=libunwind (only the failures).  \n\naarch64:\nFAIL: check-local-headers\nFAIL: conform/ISO11/tgmath.h/conform\nFAIL: conform/ISO99/tgmath.h/conform\nFAIL: conform/POSIX2008/tgmath.h/conform\nFAIL: conform/XOPEN2K/tgmath.h/conform\nFAIL: conform/XOPEN2K8/tgmath.h/conform\nFAIL: elf/check-localplt\nFAIL: elf/tst-tls23\nFAIL: math/basic-test\nFAIL: math/bug-nextafter\nFAIL: math/bug-nexttoward\nFAIL: math/test-double-ldouble-add\nFAIL: math/test-double-ldouble-div\nFAIL: math/test-double-ldouble-fma\nFAIL: math/test-double-ldouble-mul\nFAIL: math/test-double-ldouble-sqrt\nFAIL: math/test-double-ldouble-sub\nFAIL: math/test-double-nexttoward\nFAIL: math/test-float-ldouble-add\nFAIL: math/test-float-ldouble-div\nFAIL: math/test-float-ldouble-fma\nFAIL: math/test-float-ldouble-mul\nFAIL: math/test-float-ldouble-sqrt\nFAIL: math/test-float-ldouble-sub\nFAIL: math/test-float-nexttoward\nFAIL: math/test-float128-acos\nFAIL: math/test-float128-acosh\nFAIL: math/test-float128-acospi\nFAIL: math/test-float128-asin\nFAIL: math/test-float128-asinh\nFAIL: math/test-float128-asinpi\nFAIL: math/test-float128-atan\nFAIL: math/test-float128-atan2\nFAIL: math/test-float128-atan2pi\nFAIL: math/test-float128-atanh\nFAIL: math/test-float128-atanpi\nFAIL: math/test-float128-cacos\nFAIL: math/test-float128-cacosh\nFAIL: math/test-float128-canonicalize\nFAIL: math/test-float128-casin\nFAIL: math/test-float128-casinh\nFAIL: math/test-float128-catan\nFAIL: math/test-float128-catanh\nFAIL: math/test-float128-cbrt\nFAIL: math/test-float128-ccos\nFAIL: math/test-float128-ccosh\nFAIL: math/test-float128-ceil\nFAIL: math/test-float128-cexp\nFAIL: math/test-float128-clog\nFAIL: math/test-float128-clog10\nFAIL: math/test-float128-compoundn\nFAIL: math/test-float128-cos\nFAIL: math/test-float128-cosh\nFAIL: math/test-float128-cospi\nFAIL: math/test-float128-csin\nFAIL: math/test-float128-csinh\nFAIL: math/test-float128-csqrt\nFAIL: math/test-float128-ctan\nFAIL: math/test-float128-ctanh\nFAIL: math/test-float128-erf\nFAIL: math/test-float128-erfc\nFAIL: math/test-float128-exp\nFAIL: math/test-float128-exp10\nFAIL: math/test-float128-exp10m1\nFAIL: math/test-float128-exp2\nFAIL: math/test-float128-exp2m1\nFAIL: math/test-float128-expm1\nFAIL: math/test-float128-fdim\nFAIL: math/test-float128-floor\nFAIL: math/test-float128-fma\nFAIL: math/test-float128-fmax\nFAIL: math/test-float128-fmaximum\nFAIL: math/test-float128-fmaximum_mag\nFAIL: math/test-float128-fmaximum_mag_num\nFAIL: math/test-float128-fmaximum_num\nFAIL: math/test-float128-fmaxmag\nFAIL: math/test-float128-fmin\nFAIL: math/test-float128-fminimum\nFAIL: math/test-float128-fminimum_mag\nFAIL: math/test-float128-fminimum_mag_num\nFAIL: math/test-float128-fminimum_num\nFAIL: math/test-float128-fminmag\nFAIL: math/test-float128-fmod\nFAIL: math/test-float128-frexp\nFAIL: math/test-float128-fromfp\nFAIL: math/test-float128-fromfpx\nFAIL: math/test-float128-hypot\nFAIL: math/test-float128-iseqsig\nFAIL: math/test-float128-isgreater\nFAIL: math/test-float128-isgreaterequal\nFAIL: math/test-float128-isless\nFAIL: math/test-float128-islessequal\nFAIL: math/test-float128-islessgreater\nFAIL: math/test-float128-isunordered\nFAIL: math/test-float128-j0\nFAIL: math/test-float128-j1\nFAIL: math/test-float128-jn\nFAIL: math/test-float128-lgamma\nFAIL: math/test-float128-llrint\nFAIL: math/test-float128-llround\nFAIL: math/test-float128-log\nFAIL: math/test-float128-log10\nFAIL: math/test-float128-log10p1\nFAIL: math/test-float128-log1p\nFAIL: math/test-float128-log2\nFAIL: math/test-float128-log2p1\nFAIL: math/test-float128-logb\nFAIL: math/test-float128-lrint\nFAIL: math/test-float128-lround\nFAIL: math/test-float128-modf\nFAIL: math/test-float128-nearbyint\nFAIL: math/test-float128-nextafter\nFAIL: math/test-float128-nextdown\nFAIL: math/test-float128-nextup\nFAIL: math/test-float128-pow\nFAIL: math/test-float128-pown\nFAIL: math/test-float128-powr\nFAIL: math/test-float128-remainder\nFAIL: math/test-float128-remquo\nFAIL: math/test-float128-rint\nFAIL: math/test-float128-rootn\nFAIL: math/test-float128-round\nFAIL: math/test-float128-roundeven\nFAIL: math/test-float128-rsqrt\nFAIL: math/test-float128-scalbln\nFAIL: math/test-float128-scalbn\nFAIL: math/test-float128-sin\nFAIL: math/test-float128-sincos\nFAIL: math/test-float128-sinh\nFAIL: math/test-float128-sinpi\nFAIL: math/test-float128-tan\nFAIL: math/test-float128-tanh\nFAIL: math/test-float128-tanpi\nFAIL: math/test-float128-tgamma\nFAIL: math/test-float128-trunc\nFAIL: math/test-float128-ufromfp\nFAIL: math/test-float128-ufromfpx\nFAIL: math/test-float128-y0\nFAIL: math/test-float128-y1\nFAIL: math/test-float128-yn\nFAIL: math/test-float32-float128-add\nFAIL: math/test-float32-float128-div\nFAIL: math/test-float32-float128-fma\nFAIL: math/test-float32-float128-mul\nFAIL: math/test-float32-float128-sqrt\nFAIL: math/test-float32-float128-sub\nFAIL: math/test-float32-float64x-add\nFAIL: math/test-float32-float64x-div\nFAIL: math/test-float32-float64x-fma\nFAIL: math/test-float32-float64x-mul\nFAIL: math/test-float32-float64x-sqrt\nFAIL: math/test-float32-float64x-sub\nFAIL: math/test-float32x-float128-add\nFAIL: math/test-float32x-float128-div\nFAIL: math/test-float32x-float128-fma\nFAIL: math/test-float32x-float128-mul\nFAIL: math/test-float32x-float128-sqrt\nFAIL: math/test-float32x-float128-sub\nFAIL: math/test-float32x-float64x-add\nFAIL: math/test-float32x-float64x-div\nFAIL: math/test-float32x-float64x-fma\nFAIL: math/test-float32x-float64x-mul\nFAIL: math/test-float32x-float64x-sqrt\nFAIL: math/test-float32x-float64x-sub\nFAIL: math/test-float64-float128-add\nFAIL: math/test-float64-float128-div\nFAIL: math/test-float64-float128-fma\nFAIL: math/test-float64-float128-mul\nFAIL: math/test-float64-float128-sqrt\nFAIL: math/test-float64-float128-sub\nFAIL: math/test-float64-float64x-add\nFAIL: math/test-float64-float64x-div\nFAIL: math/test-float64-float64x-fma\nFAIL: math/test-float64-float64x-mul\nFAIL: math/test-float64-float64x-sqrt\nFAIL: math/test-float64-float64x-sub\nFAIL: math/test-float64x-acos\nFAIL: math/test-float64x-acosh\nFAIL: math/test-float64x-acospi\nFAIL: math/test-float64x-asin\nFAIL: math/test-float64x-asinh\nFAIL: math/test-float64x-asinpi\nFAIL: math/test-float64x-atan\nFAIL: math/test-float64x-atan2\nFAIL: math/test-float64x-atan2pi\nFAIL: math/test-float64x-atanh\nFAIL: math/test-float64x-atanpi\nFAIL: math/test-float64x-cacos\nFAIL: math/test-float64x-cacosh\nFAIL: math/test-float64x-canonicalize\nFAIL: math/test-float64x-casin\nFAIL: math/test-float64x-casinh\nFAIL: math/test-float64x-catan\nFAIL: math/test-float64x-catanh\nFAIL: math/test-float64x-cbrt\nFAIL: math/test-float64x-ccos\nFAIL: math/test-float64x-ccosh\nFAIL: math/test-float64x-ceil\nFAIL: math/test-float64x-cexp\nFAIL: math/test-float64x-clog\nFAIL: math/test-float64x-clog10\nFAIL: math/test-float64x-compoundn\nFAIL: math/test-float64x-cos\nFAIL: math/test-float64x-cosh\nFAIL: math/test-float64x-cospi\nFAIL: math/test-float64x-csin\nFAIL: math/test-float64x-csinh\nFAIL: math/test-float64x-csqrt\nFAIL: math/test-float64x-ctan\nFAIL: math/test-float64x-ctanh\nFAIL: math/test-float64x-erf\nFAIL: math/test-float64x-erfc\nFAIL: math/test-float64x-exp\nFAIL: math/test-float64x-exp10\nFAIL: math/test-float64x-exp10m1\nFAIL: math/test-float64x-exp2\nFAIL: math/test-float64x-exp2m1\nFAIL: math/test-float64x-expm1\nFAIL: math/test-float64x-fdim\nFAIL: math/test-float64x-float128-add\nFAIL: math/test-float64x-float128-div\nFAIL: math/test-float64x-float128-fma\nFAIL: math/test-float64x-float128-mul\nFAIL: math/test-float64x-float128-sub\nFAIL: math/test-float64x-floor\nFAIL: math/test-float64x-fma\nFAIL: math/test-float64x-fmax\nFAIL: math/test-float64x-fmaximum\nFAIL: math/test-float64x-fmaximum_mag\nFAIL: math/test-float64x-fmaximum_mag_num\nFAIL: math/test-float64x-fmaximum_num\nFAIL: math/test-float64x-fmaxmag\nFAIL: math/test-float64x-fmin\nFAIL: math/test-float64x-fminimum\nFAIL: math/test-float64x-fminimum_mag\nFAIL: math/test-float64x-fminimum_mag_num\nFAIL: math/test-float64x-fminimum_num\nFAIL: math/test-float64x-fminmag\nFAIL: math/test-float64x-fmod\nFAIL: math/test-float64x-frexp\nFAIL: math/test-float64x-fromfp\nFAIL: math/test-float64x-fromfpx\nFAIL: math/test-float64x-hypot\nFAIL: math/test-float64x-iseqsig\nFAIL: math/test-float64x-isgreater\nFAIL: math/test-float64x-isgreaterequal\nFAIL: math/test-float64x-isless\nFAIL: math/test-float64x-islessequal\nFAIL: math/test-float64x-islessgreater\nFAIL: math/test-float64x-isunordered\nFAIL: math/test-float64x-j0\nFAIL: math/test-float64x-j1\nFAIL: math/test-float64x-jn\nFAIL: math/test-float64x-lgamma\nFAIL: math/test-float64x-llrint\nFAIL: math/test-float64x-llround\nFAIL: math/test-float64x-log\nFAIL: math/test-float64x-log10\nFAIL: math/test-float64x-log10p1\nFAIL: math/test-float64x-log1p\nFAIL: math/test-float64x-log2\nFAIL: math/test-float64x-log2p1\nFAIL: math/test-float64x-logb\nFAIL: math/test-float64x-lrint\nFAIL: math/test-float64x-lround\nFAIL: math/test-float64x-modf\nFAIL: math/test-float64x-nearbyint\nFAIL: math/test-float64x-nextafter\nFAIL: math/test-float64x-nextdown\nFAIL: math/test-float64x-nextup\nFAIL: math/test-float64x-pow\nFAIL: math/test-float64x-pown\nFAIL: math/test-float64x-powr\nFAIL: math/test-float64x-remainder\nFAIL: math/test-float64x-remquo\nFAIL: math/test-float64x-rint\nFAIL: math/test-float64x-rootn\nFAIL: math/test-float64x-round\nFAIL: math/test-float64x-roundeven\nFAIL: math/test-float64x-rsqrt\nFAIL: math/test-float64x-scalbln\nFAIL: math/test-float64x-scalbn\nFAIL: math/test-float64x-sin\nFAIL: math/test-float64x-sincos\nFAIL: math/test-float64x-sinh\nFAIL: math/test-float64x-sinpi\nFAIL: math/test-float64x-tan\nFAIL: math/test-float64x-tanh\nFAIL: math/test-float64x-tanpi\nFAIL: math/test-float64x-tgamma\nFAIL: math/test-float64x-trunc\nFAIL: math/test-float64x-ufromfp\nFAIL: math/test-float64x-ufromfpx\nFAIL: math/test-float64x-y0\nFAIL: math/test-float64x-y1\nFAIL: math/test-float64x-yn\nFAIL: math/test-ldouble-acos\nFAIL: math/test-ldouble-acosh\nFAIL: math/test-ldouble-acospi\nFAIL: math/test-ldouble-asin\nFAIL: math/test-ldouble-asinh\nFAIL: math/test-ldouble-asinpi\nFAIL: math/test-ldouble-atan\nFAIL: math/test-ldouble-atan2\nFAIL: math/test-ldouble-atan2pi\nFAIL: math/test-ldouble-atanh\nFAIL: math/test-ldouble-atanpi\nFAIL: math/test-ldouble-cacos\nFAIL: math/test-ldouble-cacosh\nFAIL: math/test-ldouble-canonicalize\nFAIL: math/test-ldouble-casin\nFAIL: math/test-ldouble-casinh\nFAIL: math/test-ldouble-catan\nFAIL: math/test-ldouble-catanh\nFAIL: math/test-ldouble-cbrt\nFAIL: math/test-ldouble-ccos\nFAIL: math/test-ldouble-ccosh\nFAIL: math/test-ldouble-ceil\nFAIL: math/test-ldouble-cexp\nFAIL: math/test-ldouble-clog\nFAIL: math/test-ldouble-clog10\nFAIL: math/test-ldouble-compoundn\nFAIL: math/test-ldouble-cos\nFAIL: math/test-ldouble-cosh\nFAIL: math/test-ldouble-cospi\nFAIL: math/test-ldouble-csin\nFAIL: math/test-ldouble-csinh\nFAIL: math/test-ldouble-csqrt\nFAIL: math/test-ldouble-ctan\nFAIL: math/test-ldouble-ctanh\nFAIL: math/test-ldouble-erf\nFAIL: math/test-ldouble-erfc\nFAIL: math/test-ldouble-exp\nFAIL: math/test-ldouble-exp10\nFAIL: math/test-ldouble-exp10m1\nFAIL: math/test-ldouble-exp2\nFAIL: math/test-ldouble-exp2m1\nFAIL: math/test-ldouble-expm1\nFAIL: math/test-ldouble-fdim\nFAIL: math/test-ldouble-floor\nFAIL: math/test-ldouble-fma\nFAIL: math/test-ldouble-fmax\nFAIL: math/test-ldouble-fmaximum\nFAIL: math/test-ldouble-fmaximum_mag\nFAIL: math/test-ldouble-fmaximum_mag_num\nFAIL: math/test-ldouble-fmaximum_num\nFAIL: math/test-ldouble-fmaxmag\nFAIL: math/test-ldouble-fmin\nFAIL: math/test-ldouble-fminimum\nFAIL: math/test-ldouble-fminimum_mag\nFAIL: math/test-ldouble-fminimum_mag_num\nFAIL: math/test-ldouble-fminimum_num\nFAIL: math/test-ldouble-fminmag\nFAIL: math/test-ldouble-fmod\nFAIL: math/test-ldouble-frexp\nFAIL: math/test-ldouble-fromfp\nFAIL: math/test-ldouble-fromfpx\nFAIL: math/test-ldouble-hypot\nFAIL: math/test-ldouble-iseqsig\nFAIL: math/test-ldouble-isgreater\nFAIL: math/test-ldouble-isgreaterequal\nFAIL: math/test-ldouble-isless\nFAIL: math/test-ldouble-islessequal\nFAIL: math/test-ldouble-islessgreater\nFAIL: math/test-ldouble-isunordered\nFAIL: math/test-ldouble-j0\nFAIL: math/test-ldouble-j1\nFAIL: math/test-ldouble-jn\nFAIL: math/test-ldouble-lgamma\nFAIL: math/test-ldouble-llrint\nFAIL: math/test-ldouble-llround\nFAIL: math/test-ldouble-log\nFAIL: math/test-ldouble-log10\nFAIL: math/test-ldouble-log10p1\nFAIL: math/test-ldouble-log1p\nFAIL: math/test-ldouble-log2\nFAIL: math/test-ldouble-log2p1\nFAIL: math/test-ldouble-logb\nFAIL: math/test-ldouble-lrint\nFAIL: math/test-ldouble-lround\nFAIL: math/test-ldouble-modf\nFAIL: math/test-ldouble-nearbyint\nFAIL: math/test-ldouble-nextafter\nFAIL: math/test-ldouble-nextdown\nFAIL: math/test-ldouble-nexttoward\nFAIL: math/test-ldouble-nextup\nFAIL: math/test-ldouble-pow\nFAIL: math/test-ldouble-pown\nFAIL: math/test-ldouble-powr\nFAIL: math/test-ldouble-remainder\nFAIL: math/test-ldouble-remquo\nFAIL: math/test-ldouble-rint\nFAIL: math/test-ldouble-rootn\nFAIL: math/test-ldouble-round\nFAIL: math/test-ldouble-roundeven\nFAIL: math/test-ldouble-rsqrt\nFAIL: math/test-ldouble-scalb\nFAIL: math/test-ldouble-scalbln\nFAIL: math/test-ldouble-scalbn\nFAIL: math/test-ldouble-sin\nFAIL: math/test-ldouble-sincos\nFAIL: math/test-ldouble-sinh\nFAIL: math/test-ldouble-sinpi\nFAIL: math/test-ldouble-tan\nFAIL: math/test-ldouble-tanh\nFAIL: math/test-ldouble-tanpi\nFAIL: math/test-ldouble-tgamma\nFAIL: math/test-ldouble-trunc\nFAIL: math/test-ldouble-ufromfp\nFAIL: math/test-ldouble-ufromfpx\nFAIL: math/test-ldouble-y0\nFAIL: math/test-ldouble-y1\nFAIL: math/test-ldouble-yn\nFAIL: math/test-misc\nFAIL: math/test-nearbyint-except\nFAIL: math/test-tgmath\nFAIL: math/test-tgmath2\nFAIL: nptl/tst-once5\nFAIL: posix/tst-libc-message\nFAIL: stdlib/testmb2\nFAIL: stdlib/tst-qsort7-mem\nFAIL: stdlib/tst-qsortx7-mem\nFAIL: stdlib/tst-strtod-round\nFAIL: stdlib/tst-strtod-underflow\nFAIL: wcsmbs/tst-wcstod-round\n\nx86_64:\nFAIL: check-local-headers\nFAIL: conform/ISO11/tgmath.h/conform\nFAIL: conform/ISO99/tgmath.h/conform\nFAIL: conform/POSIX2008/tgmath.h/conform\nFAIL: conform/XOPEN2K/tgmath.h/conform\nFAIL: conform/XOPEN2K8/tgmath.h/conform\nFAIL: elf/check-localplt\nFAIL: intl/tst-gettext\nFAIL: math/test-float128-acos\nFAIL: math/test-float128-acosh\nFAIL: math/test-float128-acospi\nFAIL: math/test-float128-asin\nFAIL: math/test-float128-asinh\nFAIL: math/test-float128-asinpi\nFAIL: math/test-float128-atan\nFAIL: math/test-float128-atan2\nFAIL: math/test-float128-atan2pi\nFAIL: math/test-float128-atanh\nFAIL: math/test-float128-atanpi\nFAIL: math/test-float128-cacos\nFAIL: math/test-float128-cacosh\nFAIL: math/test-float128-casin\nFAIL: math/test-float128-casinh\nFAIL: math/test-float128-catan\nFAIL: math/test-float128-catanh\nFAIL: math/test-float128-ccos\nFAIL: math/test-float128-ccosh\nFAIL: math/test-float128-cexp\nFAIL: math/test-float128-clog\nFAIL: math/test-float128-clog10\nFAIL: math/test-float128-compoundn\nFAIL: math/test-float128-cos\nFAIL: math/test-float128-cosh\nFAIL: math/test-float128-cospi\nFAIL: math/test-float128-csin\nFAIL: math/test-float128-csinh\nFAIL: math/test-float128-csqrt\nFAIL: math/test-float128-ctan\nFAIL: math/test-float128-ctanh\nFAIL: math/test-float128-erf\nFAIL: math/test-float128-erfc\nFAIL: math/test-float128-exp\nFAIL: math/test-float128-exp10\nFAIL: math/test-float128-exp10m1\nFAIL: math/test-float128-exp2\nFAIL: math/test-float128-exp2m1\nFAIL: math/test-float128-expm1\nFAIL: math/test-float128-fdim\nFAIL: math/test-float128-fma\nFAIL: math/test-float128-fmod\nFAIL: math/test-float128-fromfp\nFAIL: math/test-float128-fromfpx\nFAIL: math/test-float128-hypot\nFAIL: math/test-float128-j0\nFAIL: math/test-float128-j1\nFAIL: math/test-float128-jn\nFAIL: math/test-float128-lgamma\nFAIL: math/test-float128-llrint\nFAIL: math/test-float128-llround\nFAIL: math/test-float128-log\nFAIL: math/test-float128-log10\nFAIL: math/test-float128-log10p1\nFAIL: math/test-float128-log1p\nFAIL: math/test-float128-log2\nFAIL: math/test-float128-log2p1\nFAIL: math/test-float128-logb\nFAIL: math/test-float128-lrint\nFAIL: math/test-float128-lround\nFAIL: math/test-float128-nextafter\nFAIL: math/test-float128-pow\nFAIL: math/test-float128-pown\nFAIL: math/test-float128-powr\nFAIL: math/test-float128-remainder\nFAIL: math/test-float128-remquo\nFAIL: math/test-float128-rootn\nFAIL: math/test-float128-rsqrt\nFAIL: math/test-float128-scalbln\nFAIL: math/test-float128-scalbn\nFAIL: math/test-float128-sin\nFAIL: math/test-float128-sincos\nFAIL: math/test-float128-sinh\nFAIL: math/test-float128-sinpi\nFAIL: math/test-float128-tan\nFAIL: math/test-float128-tanh\nFAIL: math/test-float128-tanpi\nFAIL: math/test-float128-tgamma\nFAIL: math/test-float128-ufromfp\nFAIL: math/test-float128-ufromfpx\nFAIL: math/test-float128-y0\nFAIL: math/test-float128-y1\nFAIL: math/test-float128-yn\nFAIL: math/test-float32-float128-add\nFAIL: math/test-float32-float128-div\nFAIL: math/test-float32-float128-fma\nFAIL: math/test-float32-float128-mul\nFAIL: math/test-float32-float128-sqrt\nFAIL: math/test-float32-float128-sub\nFAIL: math/test-float32x-float128-add\nFAIL: math/test-float32x-float128-div\nFAIL: math/test-float32x-float128-fma\nFAIL: math/test-float32x-float128-mul\nFAIL: math/test-float32x-float128-sqrt\nFAIL: math/test-float32x-float128-sub\nFAIL: math/test-float64-float128-add\nFAIL: math/test-float64-float128-div\nFAIL: math/test-float64-float128-fma\nFAIL: math/test-float64-float128-mul\nFAIL: math/test-float64-float128-sqrt\nFAIL: math/test-float64-float128-sub\nFAIL: math/test-float64x-float128-add\nFAIL: math/test-float64x-float128-div\nFAIL: math/test-float64x-float128-fma\nFAIL: math/test-float64x-float128-mul\nFAIL: math/test-float64x-float128-sqrt\nFAIL: math/test-float64x-float128-sub\nFAIL: math/test-float64x-fpclassify\nFAIL: math/test-float64x-isinf\nFAIL: math/test-float64x-setpayload\nFAIL: math/test-ldouble-fpclassify\nFAIL: math/test-ldouble-isinf\nFAIL: math/test-ldouble-scalb\nFAIL: math/test-ldouble-setpayload\nFAIL: math/test-tgmath\nFAIL: math/test-tgmath2\nFAIL: nptl/tst-once5\nFAIL: nptl/tst-pthread-gdb-attach\nFAIL: nptl/tst-pthread-gdb-attach-static\nFAIL: posix/tst-libc-message\nFAIL: stdlib/testmb2\nFAIL: stdlib/tst-qsort7-mem\nFAIL: stdlib/tst-qsortx7-mem\nFAIL: stdlib/tst-strtod-round\nFAIL: stdlib/tst-strtod-underflow\nFAIL: wcsmbs/tst-wcstod-round\n\nAdhemerval Zanella (5):\n  x86_64: Conditionally define __sfp_handle_exceptions for compiler-rt\n  configure: Parametrize runtime libraries to support compiler-rt\n  configure: Repurpose have-cc-with-libunwind for clang support\n  nptl: Only issues __libc_unwind_link_get for SHARED\n  Support loading libunwind instead of libgcc_s\n\n Makeconfig                       |  18 ++--\n Makerules                        |   3 +-\n config.h.in                      |   3 +\n config.make.in                   |   1 -\n configure                        | 139 ++++++++++++++++++++++++++++---\n configure.ac                     |  53 +++++++++---\n dlfcn/Makefile                   |   2 +-\n elf/Makefile                     |   6 +-\n misc/unwind-link.c               |  34 +++++++-\n nptl/pthread_cancel.c            |   2 +-\n nptl/pthread_exit.c              |   4 +-\n shlib-versions                   |   2 +\n support/Makefile                 |   6 +-\n sysdeps/generic/unwind-link.h    |  13 +++\n sysdeps/generic/unwind-resume.c  |  32 +++++++\n sysdeps/x86/fpu/Makefile         |   5 +-\n sysdeps/x86/fpu/sfp-exceptions.c |  74 ++++++++++++++++\n 17 files changed, 353 insertions(+), 44 deletions(-)\n create mode 100644 sysdeps/x86/fpu/sfp-exceptions.c"
}