| Issue |
175774
|
| Summary |
libcxx build failed for baremetal cross compilation
|
| Labels |
|
| Assignees |
|
| Reporter |
ukalappa-mips
|
we tried cross compiler libcxx for riscv with below cmake options
`-DLIBCXX_ENABLE_LOCALIZATION=OFF \
-DLIBCXX_ENABLE_EXCEPTIONS=OFF \
-DLIBCXX_ENABLE_THREADS=OFF \
-DLIBCXX_ENABLE_MONOTONIC_CLOCK=OFF \
-DLIBCXX_ENABLE_FILESYSTEM=OFF \
-DLIBCXX_ENABLE_WIDE_CHARACTERS=OFF \
-DLIBCXX_ENABLE_SHARED=OFF \
-DLIBCXX_USE_COMPILER_RT=ON \
-DLIBCXX_ENABLE_THREADS=OFF \
-DLIBCXXABI_ENABLE_THREADS=OFF \
-DLIBCXX_ENABLE_STATIC=ON \
-DLIBCXX_ENABLE_SHARED=OFF \
-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF \
-DLIBCXX_USE_COMPILER_RT=ON \
-DLIBCXXABI_BAREMETAL=ON \
-DLIBCXXABI_USE_LLVM_UNWINDER=ON \
-DLIBCXXABI_ENABLE_STATIC=ON \
-DLIBCXXABI_ENABLE_SHARED=OFF \
-DLIBCXXABI_USE_LLVM_UNWINDER=ON \
-DLIBCXX_CXX_ABI=libcxxabi `
and build with failed with below error like
**libcxx/src/print.cpp:61:84: error: use of undeclared identifier 'fileno'
61 | _LIBCPP_EXPORTED_FROM_ABI bool __is_posix_terminal(FILE* __stream) { return isatty(fileno(__stream)); }
|** ^~~~~~
and we see the above snippet code needs to be needs to be guarded like
+#if _LIBCPP_HAS_FILESYSTEM
_LIBCPP_EXPORTED_FROM_ABI bool __is_posix_terminal(FILE* __stream) { return isatty(fileno(__stream)); }
+#endif
Any thoughts or comments will help us move forward for baremetal cross compilation ...thank you
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