[PATCH] D80690: [RISCV] Support libunwind for riscv32

Tue Mar 2 13:00:29 PST 2021

thakis added a comment.

Hi,

this doesn't compile on our bots:

  FAILED: obj/buildtools/third_party/libunwind/libunwind/libunwind.o 
  /b/s/w/ir/cache/goma/client/gomacc ../../third_party/llvm-build/Release+Asserts/bin/clang++ -MMD -MF obj/buildtools/third_party/libunwind/libunwind/libunwind.o.d -D_LIBUNWIND_DISABLE_VISIBILITY_ANNOTATIONS -DDCHECK_ALWAYS_ON=1 -DUSE_AURA=1 -DUSE_OZONE=1 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DFUCHSIA_SDK_VERSION=2.20210302.1.1 -DCR_CLANG_REVISION=\"llvmorg-13-init-1559-g01b87444-3\" -D_LIBCPP_ABI_UNSTABLE -D_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS -D_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS -D_LIBCPP_ENABLE_NODISCARD -D_LIBCPP_HAS_NO_VENDOR_AVAILABILITY_ANNOTATIONS -D_LIBCPP_NO_NATIVE_SEMAPHORES -D_LIBCPP_DEBUG=0 -DCR_LIBCXX_REVISION=8fa87946779682841e21e2da977eccfb6cb3bded -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -I../../buildtools/third_party/libunwind/trunk/include -I../.. -Igen -fno-delete-null-pointer-checks -fno-ident -fno-strict-aliasing --param=ssp-buffer-size=4 -fstack-protector -funwind-tables -fPIC -fcolor-diagnostics -fmerge-all-constants -fcrash-diagnostics-dir=../../tools/clang/crashreports -mllvm -instcombine-lower-dbg-declare=0 -fcomplete-member-pointers --target=x86_64-fuchsia -m64 -march=x86-64 -msse3 -Wno-builtin-macro-redefined -D__DATE__= -D__TIME__= -D__TIMESTAMP__= -Xclang -fdebug-compilation-dir -Xclang . -no-canonical-prefixes -Oz -fdata-sections -ffunction-sections -fomit-frame-pointer -g1 -ftrivial-auto-var-init=pattern -fvisibility=hidden -Xclang -add-plugin -Xclang find-bad-constructs -Xclang -plugin-arg-find-bad-constructs -Xclang check-ipc -Wheader-hygiene -Wstring-conversion -Wtautological-overlap-compare -Werror -Wall -Wno-unused-variable -Wno-misleading-indentation -Wno-missing-field-initializers -Wno-unused-parameter -Wno-c++11-narrowing -Wno-unneeded-internal-declaration -Wno-undefined-var-template -Wno-psabi -Wno-ignored-pragma-optimize -Wno-implicit-int-float-conversion -Wno-final-dtor-non-final-class -Wno-builtin-assume-aligned-alignment -Wno-deprecated-copy -Wno-non-c-typedef-for-linkage -Wno-max-tokens -fstrict-aliasing -fPIC -Wno-unused-function -funwind-tables -std=c++14 -fno-trigraphs -Wno-trigraphs -nostdinc++ -isystem../../buildtools/third_party/libc++/trunk/include -isystem../../buildtools/third_party/libc++abi/trunk/include --sysroot=../../third_party/fuchsia-sdk/sdk/arch/x64/sysroot -fvisibility-inlines-hidden -fexceptions -frtti -c ../../buildtools/third_party/libunwind/trunk/src/libunwind.cpp -o obj/buildtools/third_party/libunwind/libunwind/libunwind.o
  In file included from ../../buildtools/third_party/libunwind/trunk/src/libunwind.cpp:21:
  In file included from ../../buildtools/third_party/libunwind/trunk/src/AddressSpace.hpp:23:
  In file included from ../../buildtools/third_party/libunwind/trunk/src/EHHeaderParser.hpp:17:
  In file included from ../../buildtools/third_party/libunwind/trunk/src/DwarfParser.hpp:22:
  ../../buildtools/third_party/libunwind/trunk/src/Registers.hpp:3739:4: error: "Unsupported __riscv_xlen"
  #  error "Unsupported __riscv_xlen"
     ^

Does this assume that we pass any `-D` flags? Does this assume trunk clang?

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D80690/new/

https://reviews.llvm.org/D80690