tzb99 added a comment. In D128250#3676635 <https://reviews.llvm.org/D128250#3676635>, @tzb99 wrote:
> In D128250#3640942 <https://reviews.llvm.org/D128250#3640942>, @Emmmer wrote: > >> This patch change: >> >> - Add the recognition of architecture riscv64 in `HostInfoBase.cpp` >> - Add the recognition of architecture riscv64 and riscv32 in >> `ObjectFilePECOFF.cpp` >> - Add riscv's `ebreak` command to `Platform.cpp` >> >> Now lldb can debug with simple executables on `qemu-system-riscv64` and be >> able to attach to a `gdbserver`. >> >> --- >> >> TODO: some unittest failed >> >> bash >> [ RUN ] TestBase.LaunchModePreservesEnvironment >> >> /home/emmmer/git/llvm-project/lldb/unittests/tools/lldb-server/tests/LLGSTest.cpp:29: >> Failure >> Value of: llvm::detail::TakeExpected(ClientOr) >> Expected: succeeded >> Actual: failed (Unable to parse qRegisterInfo: generic) >> [ FAILED ] TestBase.LaunchModePreservesEnvironment (662 ms) >> >> >> [ RUN ] TestBase.vAttachRichError >> Connection established. >> Launched >> '/home/emmmer/git/llvm-project/build-cross/tools/lldb/unittests/tools/lldb-server/./environment_check' >> as process 1553... >> lldb-server-local_build >> Connection established. >> Launched >> '/home/emmmer/git/llvm-project/build-cross/tools/lldb/unittests/tools/lldb-server/./environment_check' >> as process 1556... >> lldb-server-local_build >> >> /home/emmmer/git/llvm-project/lldb/unittests/tools/lldb-server/tests/LLGSTest.cpp:60: >> Failure >> Value of: llvm::detail::TakeExpected(ClientOr) >> Expected: succeeded >> Actual: failed (Unable to parse qRegisterInfo: generic) >> [ FAILED ] TestBase.vAttachRichError (364 ms) >> >> In riscv, the user-mode process cannot directly take the `pc` register but >> must obtain the pc state through `auipc`, while the `pc` register is >> required to exist in the test, so it failed. >> >> --- >> >> bash >> [ RUN ] DumpDataExtractorTest.Formats >> >> /home/emmmer/git/llvm-project/lldb/unittests/Core/DumpDataExtractorTest.cpp:90: >> Failure >> Expected equality of these values: >> expected >> Which is: "{-nan -nan nan nan}" >> result.GetString() >> Which is: "{nan nan nan nan}" >> [ FAILED ] DumpDataExtractorTest.Formats (25 ms) >> >> The reason is currently unknown, and further verification is required >> >> --- >> >> About buildbot: Unfortunately, as an individual developer, I may not have >> the ability to maintain a 7*24-hour compile server or even a cluster, but I >> will do my best to provide some test reports. > > Hello: > > I implemented the diff into my local llvm project and cross-compiled the > project using in-tree build with enable projects as: > -DLLVM_ENABLE_PROJECTS="clang;lld;lldb" > > The project can be compiled using the "Release" mode. The lldb-server can be > initiated and connected to the host machine from the qemu environment. It can > ran the riscv binary using process continue / thread continue, but the > compiled lldb-server cannot get any thread information and cannot perform > thread step-in functionality. Then I performed the Debug mode to build the > project. Error occurred so the build command cannot be finished. The error > shows like: > > [3759/4081] Linking CXX shared library lib/libclang-cpp.so.15git > FAILED: lib/libclang-cpp.so.15git > : && riscv-gnu-toolchain/bin/riscv64-unknown-linux-gnu-g++ - > > Can your lldb-server work properly on the riscv qemu environment? My question > might be, what is the proper recipe for cross-building the lldb-server? Or, > should the diff be changed to enable getting the thread instruction info of > the lldb-server? > > Thank you very much! One more detail about the ThreadInfo: This is the strace of my lldb-server runing on the qemu: recvfrom(9, "$jThreadsInfo#c1", 8192, 0, NULL, NULL) = 16 gettid() = 353 openat(AT_FDCWD, "/proc/354/task/354/comm", O_RDONLY|O_CLOEXEC) = 8 read(8, "riscvv\n", 16384) = 7 read(8, "", 16384) = 0 rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [HUP CHLD], 8) = 0 close(8) = 0 rt_sigprocmask(SIG_SETMASK, [HUP CHLD], NULL, 8) = 0 sendto(9, "$[{\"name\":\"riscvv\",\"reason\":\"sig"..., 64, 0, NULL, 0) = 64 gettid() = 353 pselect6(10, [6 9], NULL, NULL, {tv_sec=0, tv_nsec=0}, NULL) = 1 (in [9], left {tv_sec=0, tv_nsec=0}) recvfrom(9, "$jThreadExtendedInfo:#b9", 8192, 0, NULL, NULL) = 24 gettid() = 353 CHANGES SINCE LAST ACTION https://reviews.llvm.org/D128250/new/ https://reviews.llvm.org/D128250 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
