Date: Wed, 17 Oct 2018 10:18:18 -0700 From: Mark Millard <marklmi@yahoo.com> To: bob prohaska <fbsd@www.zefox.net> Cc: freebsd-arm@freebsd.org Subject: Re: Clang segfaults on RPI3 in Alpha9 during buildworld Message-ID: <3FEA7FF0-2BF7-4517-A8C1-B68C802CF984@yahoo.com> In-Reply-To: <20181017153116.GA61147@www.zefox.net> References: <20181017153116.GA61147@www.zefox.net>
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On 2018-Oct-17, at 8:31 AM, bob prohaska <fbsd at www.zefox.net> wrote: > The last several attempts to build world on an RPI3 running = 12.0-ALPHA9 r339305 GENERIC arm64 > have stopped with: >=20 > --- Target/X86/X86LegalizerInfo.o --- > c++ -target aarch64-unknown-freebsd12.0 = --sysroot=3D/usr/obj/usr/src/arm64.aarch64/tmp = -B/usr/obj/usr/src/arm64.aarch64/ > tmp/usr/bin -O2 -pipe = -I/usr/obj/usr/src/arm64.aarch64/lib/clang/libllvm = -I/usr/src/contrib/llvm/lib/Target/AArch64 -I > /usr/src/contrib/llvm/lib/Target/ARM = -I/usr/src/contrib/llvm/lib/Target/Mips = -I/usr/src/contrib/llvm/lib/Target/PowerPC > -I/usr/src/contrib/llvm/lib/Target/Sparc = -I/usr/src/contrib/llvm/lib/Target/X86 -I/usr/src/lib/clang/include = -I/usr/sr > c/contrib/llvm/include -DLLVM_BUILD_GLOBAL_ISEL -D__STDC_LIMIT_MACROS = -D__STDC_CONSTANT_MACROS -DLLVM_DEFAULT_TARGET_TR > IPLE=3D\"aarch64-unknown-freebsd12.0\" = -DLLVM_HOST_TRIPLE=3D\"aarch64-unknown-freebsd12.0\" = -DDEFAULT_SYSROOT=3D\"\" -DLLVM_T > ARGET_ENABLE_AARCH64 -DLLVM_TARGET_ENABLE_ARM = -DLLVM_TARGET_ENABLE_MIPS -DLLVM_TARGET_ENABLE_POWERPC = -DLLVM_TARGET_ENAB > LE_SPARC -DLLVM_TARGET_ENABLE_X86 = -DLLVM_NATIVE_ASMPARSER=3DLLVMInitializeAArch64AsmParser = -DLLVM_NATIVE_ASMPRINTER=3DLLVMI > nitializeAArch64AsmPrinter = -DLLVM_NATIVE_DISASSEMBLER=3DLLVMInitializeAArch64Disassembler = -DLLVM_NATIVE_TARGET=3DLLVMInitia > lizeAArch64Target = -DLLVM_NATIVE_TARGETINFO=3DLLVMInitializeAArch64TargetInfo = -DLLVM_NATIVE_TARGETMC=3DLLVMInitializeAArch64 > TargetMC -ffunction-sections -fdata-sections -gline-tables-only -MD = -MF.depend.Target_X86_X86LegalizerInfo.o -MTTarget/ > X86/X86LegalizerInfo.o -fstack-protector-strong -Qunused-arguments = -std=3Dc++11 -fno-exceptions -fno-rtti -gline-tables- > only -stdlib=3Dlibc++ -Wno-c++11-extensions -c = /usr/src/contrib/llvm/lib/Target/X86/X86LegalizerInfo.cpp -o = Target/X86/X > 86LegalizerInfo.o > --- Target/X86/X86ISelDAGToDAG.o --- > c++: error: unable to execute command: Segmentation fault (core = dumped) > c++: error: clang frontend command failed due to signal (use -v to see = invocation) > FreeBSD clang version 6.0.1 (tags/RELEASE_601/final 335540) (based on = LLVM 6.0.1) > Target: aarch64-unknown-freebsd12.0 > Thread model: posix > InstalledDir: /usr/bin >=20 > So far I'm stuck, is there a workaround? So far I've tried compiling = kernel-toolchain and > updating the kernel alone, but that didn't seem to help. >=20 When clang fails it sometimes produces text like: cc: note: diagnostic msg: PLEASE submit a bug report to = https://bugs.freebsd.org/submit/ and include the crash backtrace, = preprocessed source, and associated run script. cc: note: diagnostic msg:=20 ******************** PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT: Preprocessed source(s) and associated run script(s) are located at: cc: note: diagnostic msg: /tmp/control-696205.c cc: note: diagnostic msg: /tmp/control-696205.sh cc: note: diagnostic msg:=20 ******************** *** [control.lo] Error code 1 The .c and .sh files are intended to help reproduce the problem without being part of a grander operation like buildworld. (The names of the .c and .h vary from run to run.) Did your example produce such messages? If yes, you may want to provide some sort of access to the files. if no, you may want to report that. Sometimes the .c is big enough to justify compression if it is to go into, say, a FreeBSD bugzilla submittal. Some people bundle the two files into one compressed file. =3D=3D=3D Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar)
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