[PATCH] D129242: [clang-repl] Add host exception support check utility flag.

Fri Jul 29 00:56:21 PDT 2022

uabelho added a comment.

In D129242#3686610 <https://reviews.llvm.org/D129242#3686610>, @sunho wrote:

> @uabelho Hi, that's a typeinfo symbol of libc++ abi. It's quite weird that __cxa_throw is availble while _ZTIPKc is not. Do you have some special setting regarding libc++ in your environment?

We compile with clang 8 on a RHEL7 machine, but since we then got too old libs we do

  --gcc-toolchain=/proj/bbi_twh/wh_bbi/x86_64-Linux2/bbigcc/1.9.3.0/crosscompiler

since we have newer libs there. This is seen in the cmake command:

  cmake command: CC='/proj/flexasic/app/llvm/8.0/bin/clang -march=corei7 --gcc-toolchain=/proj/bbi_twh/wh_bbi/x86_64-Linux2/bbigcc/1.9.3.0/crosscompiler' CXX='/proj/flexasic/app/llvm/8.0/bin/clang++ -march=corei7 --gcc-toolchain=/proj/bbi_twh/wh_bbi/x86_64-Linux2/bbigcc/1.9.3.0/crosscompiler' LDFLAGS='-Wl,-R/proj/bbi_twh/wh_bbi/x86_64-Linux3/z3/4.8.8-1/lib64' PATH=/proj/flexasic/app/ninja/1.8.2/SLED11-64/bin:$PATH  /app/vbuild/RHEL7-x86_64/cmake/3.16.4/bin/cmake /repo/uabelho/main-github/llvm --debug-trycompile -G Ninja -DCMAKE_MAKE_PROGRAM=/proj/flexasic/app/ninja/1.8.2/SLED11-64/bin/ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_FLAGS='-Wno-error=unused-command-line-argument' -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_INSTALL_PREFIX=/compiler-clang -DLLVM_APPEND_VC_REV=OFF -DLLVM_CCACHE_DIR=/repo/uabelho/.ccache/ -DLLVM_CCACHE_BUILD=ON -DLLVM_CCACHE_PROGRAM=/app/vbuild/RHEL7-x86_64/ccache/3.2.2/bin/ccache -DLLVM_CCACHE_NOHASHDIR=ON -DLLVM_CCACHE_BASEDIR=/repo -DLLVM_ENABLE_ASSERTIONS=ON -DLLVM_ENABLE_WERROR=ON -DLLVM_ENABLE_PROJECTS='clang;clang-tools-extra;lld' -DLLVM_ENABLE_Z3_SOLVER=ON -DLLVM_Z3_INSTALL_DIR=/proj/bbi_twh/wh_bbi/x86_64-Linux3/z3/4.8.8-1 -DLLVM_ENABLE_LIBPFM=OFF -DLLVM_ENABLE_LIBXML2=OFF -DLLVM_ENABLE_TERMINFO=OFF -DLLVM_ENABLE_LIBEDIT=OFF -DLLVM_STATIC_LINK_CXX_STDLIB=ON -DCLANG_ENABLE_ARCMT=OFF -DCLANG_TOOLING_BUILD_AST_INTROSPECTION=OFF

Could it be something like that there is a mismatch somewhere so the support checks will use some libs but then the actual libs used when compiling/running is something else?

Repository:
  rG LLVM Github Monorepo

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https://reviews.llvm.org/D129242