[PATCH] D148499: [RISC-V libunwind]:Fix RISC-V backtrace issue

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added a comment.

Do you know how to test this? The code looks reasonable, but I'd like to reproduce the issue... I may need a RISC-V image (with gcc,gdb,etc) which can run in qemu-system. On the non-riscv host I'll need some `LLVM_ENABLE_RUNTIMES` way to cross compile for RISC-V.



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Comment at: libunwind/src/UnwindCursor.hpp:2860
+int UnwindCursor<A, R>::stepThroughSigReturn(Registers_riscv &) {
+
+  const pint_t kOffsetSpToSigcontext = 176;
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