================ @@ -305,9 +305,22 @@ DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) mflr 0 std 0, PPC64_OFFS_SRR0(3) // store lr as ssr0 PPC64_STR(1) + PPC64_STR(4) // Save r4 first since it will be used for fixing r2. +#if defined(_AIX) + // The TOC register (r2) was changed by the glue code if unw_getcontext + // is called from a different module. Save the original TOC register + // in the context if this is the case. + mflr 4 + lwz 4, 0(4) // Get the first instruction at the return address. + lis 0, 0xe841 // Is it reloading the TOC register "ld 2,40(1)"? ---------------- stephenpeckham wrote:
The legacy compiler uses xoris/cmplwi for both 32-bit and 64-bit. https://github.com/llvm/llvm-project/pull/66549 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
