Revert "Libunwind1.5rc2 (#36027)" (#36909)

This reverts commit 8c6c765.

Author: safern

src/coreclr/src/pal/src/exception/seh-unwind.cpp

@@ -111,22 +111,6 @@ static void WinContextToUnwindContext(CONTEXT *winContext, unw_context_t *unwCon
     unwContext->regs[13] = winContext->Sp;
     unwContext->regs[14] = winContext->Lr;
     unwContext->regs[15] = winContext->Pc;
-#elif defined(HOST_ARM64)
-    unwContext->uc_mcontext.pc       = winContext->Pc;
-    unwContext->uc_mcontext.sp       = winContext->Sp;
-    unwContext->uc_mcontext.regs[29] = winContext->Fp;
-    unwContext->uc_mcontext.regs[30] = winContext->Lr;
-
-    unwContext->uc_mcontext.regs[19] = winContext->X19;
-    unwContext->uc_mcontext.regs[20] = winContext->X20;
-    unwContext->uc_mcontext.regs[21] = winContext->X21;
-    unwContext->uc_mcontext.regs[22] = winContext->X22;
-    unwContext->uc_mcontext.regs[23] = winContext->X23;
-    unwContext->uc_mcontext.regs[24] = winContext->X24;
-    unwContext->uc_mcontext.regs[25] = winContext->X25;
-    unwContext->uc_mcontext.regs[26] = winContext->X26;
-    unwContext->uc_mcontext.regs[27] = winContext->X27;
-    unwContext->uc_mcontext.regs[28] = winContext->X28;
 #endif
 }
 

src/coreclr/src/pal/src/libunwind/.gitignore

@@ -75,7 +75,5 @@ tests/[GL]ia64-test-readonly
 tests/[GL]ia64-test-stack
 tests/ia64-test-dyn1
 tests/ia64-test-sig
-tests/[GL]x64-test-dwarf-expressions
-tests/x64-unwind-badjmp-signal-frame
 tests/*.log
 tests/*.trs

src/coreclr/src/pal/src/libunwind/.travis.yml

@@ -9,26 +9,10 @@ env:
 - TARGET=mipsel-unknown-linux-gnu
 # Currently experiencing build failures here
 #- TARGET=powerpc64-linux-gnu
-
-linux-s390x: &linux-s390x
-  os: linux
-  arch: s390x
-  env: TARGET=s390x-linux-gnu
-  script:
-    - ./autogen.sh
-    - ./configure
-    - make -j32
-    - ulimit -c unlimited
-    - make check -j32
-
 script:
 - ./autogen.sh
 - ./configure --target=$TARGET --host=$HOST
 - make -j32
 - sudo bash -c 'echo core.%p.%p > /proc/sys/kernel/core_pattern'
 - ulimit -c unlimited
 - if [ $TARGET == 'x86_64-linux-gnu' ]; then make check -j32; fi
-
-jobs:
-  include:
-    - <<: *linux-s390x

src/coreclr/src/pal/src/libunwind/CMakeLists.txt

@@ -13,9 +13,10 @@ elseif(CLR_CMAKE_HOST_ARCH_I386)
 endif()
 
 set(PKG_MAJOR "1")
-set(PKG_MINOR "5")
-set(PKG_EXTRA "-rc2")
+set(PKG_MINOR "3")
+set(PKG_EXTRA "-rc1")
 
 configure_file(include/libunwind-common.h.in ${CMAKE_CURRENT_BINARY_DIR}/include/libunwind-common.h)
 configure_file(include/libunwind.h.in ${CMAKE_CURRENT_BINARY_DIR}/include/libunwind.h)
 configure_file(include/tdep/libunwind_i.h.in ${CMAKE_CURRENT_BINARY_DIR}/include/tdep/libunwind_i.h)
+

src/coreclr/src/pal/src/libunwind/Makefile.am

@@ -41,9 +41,6 @@ endif
 if ARCH_SH
 include_HEADERS += include/libunwind-sh.h
 endif
-if ARCH_S390X
-include_HEADERS += include/libunwind-s390x.h
-endif
 
 if !REMOTE_ONLY
 include_HEADERS += include/libunwind.h include/unwind.h
@@ -87,8 +84,6 @@ noinst_HEADERS = include/dwarf.h include/dwarf_i.h include/dwarf-eh.h	\
 	include/tdep-ppc64/jmpbuf.h include/tdep-ppc64/libunwind_i.h	\
 	include/tdep-sh/dwarf-config.h					\
 	include/tdep-sh/jmpbuf.h include/tdep-sh/libunwind_i.h		\
-	include/tdep-s390x/dwarf-config.h				\
-	include/tdep-s390x/jmpbuf.h include/tdep-s390x/libunwind_i.h	\
 	include/tdep/libunwind_i.h					\
 	include/tdep/jmpbuf.h include/tdep/dwarf-config.h