================
@@ -3032,6 +2983,162 @@ int UnwindCursor<A,
R>::stepThroughSigReturn(Registers_s390x &) {
#endif // defined(_LIBUNWIND_CHECK_LINUX_SIGRETURN) &&
// defined(_LIBUNWIND_TARGET_S390X)
+#if defined(_LIBUNWIND_CHECK_HAIKU_SIGRETURN)
+
+#if defined(B_HAIKU_32_BIT)
+typedef Elf32_Sym elf_sym;
+#define ELF_ST_TYPE ELF32_ST_TYPE
+#elif defined(B_HAIKU_64_BIT)
+typedef Elf64_Sym elf_sym;
+#define ELF_ST_TYPE ELF64_ST_TYPE
+#endif
+
+// Private syscall declared as a weak symbol to prevent ABI breaks.
----------------
trungnt2910 wrote:
> provide signal handler address and size in commpage entries.
But `commpage` entries are private ABIs, aren't they?
https://github.com/llvm/llvm-project/pull/135367
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