Update libunwind to LLVM 16.0.6 (emscripten-core#20088)

ChangeLog.md

@@ -27,6 +27,7 @@ See docs/process.md for more on how version tagging works.
 - The `--log_html` option was removed from `emrun`.  This option was already not
   working with python3.8 or above so we hope is safe to say that nobody was
   relying on it.
+- libunwind updated to LLVM 16.0.6. (#20088)
 
 3.1.44 - 07/25/23
 -----------------

system/lib/libunwind/include/CMakeLists.txt

@@ -0,0 +1,33 @@
+set(files
+    __libunwind_config.h
+    libunwind.h
+    libunwind.modulemap
+    mach-o/compact_unwind_encoding.h
+    mach-o/compact_unwind_encoding.modulemap
+    unwind_arm_ehabi.h
+    unwind_itanium.h
+    unwind.h
+    )
+
+add_library(unwind-headers INTERFACE)
+target_include_directories(unwind-headers INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})
+
+if(LIBUNWIND_INSTALL_HEADERS)
+  foreach(file ${files})
+    get_filename_component(dir ${file} DIRECTORY)
+    install(FILES ${file}
+      DESTINATION "${LIBUNWIND_INSTALL_INCLUDE_DIR}/${dir}"
+      COMPONENT unwind-headers
+      PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
+    )
+  endforeach()
+
+  if(NOT CMAKE_CONFIGURATION_TYPES)
+    add_custom_target(install-unwind-headers
+      DEPENDS unwind-headers
+      COMMAND "${CMAKE_COMMAND}"
+              -DCMAKE_INSTALL_COMPONENT=unwind-headers
+              -P "${LIBUNWIND_BINARY_DIR}/cmake_install.cmake")
+    add_custom_target(install-unwind-headers-stripped DEPENDS install-unwind-headers)
+  endif()
+endif()

system/lib/libunwind/include/__libunwind_config.h

@@ -1,4 +1,4 @@
-//===------------------------- __libunwind_config.h -----------------------===//
+//===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
@@ -9,8 +9,10 @@
 #ifndef ____LIBUNWIND_CONFIG_H__
 #define ____LIBUNWIND_CONFIG_H__
 
+#define _LIBUNWIND_VERSION 15000
+
 #if defined(__arm__) && !defined(__USING_SJLJ_EXCEPTIONS__) && \
-    !defined(__ARM_DWARF_EH__)
+    !defined(__ARM_DWARF_EH__) && !defined(__SEH__)
 #define _LIBUNWIND_ARM_EHABI
 #endif
 
@@ -23,10 +25,17 @@
 #define _LIBUNWIND_HIGHEST_DWARF_REGISTER_OR1K      32
 #define _LIBUNWIND_HIGHEST_DWARF_REGISTER_MIPS      65
 #define _LIBUNWIND_HIGHEST_DWARF_REGISTER_SPARC     31
+#define _LIBUNWIND_HIGHEST_DWARF_REGISTER_SPARC64   31
 #define _LIBUNWIND_HIGHEST_DWARF_REGISTER_HEXAGON   34
 #define _LIBUNWIND_HIGHEST_DWARF_REGISTER_RISCV     64
+#define _LIBUNWIND_HIGHEST_DWARF_REGISTER_VE        143
+#define _LIBUNWIND_HIGHEST_DWARF_REGISTER_S390X     83
+#define _LIBUNWIND_HIGHEST_DWARF_REGISTER_LOONGARCH 64
 
 #if defined(_LIBUNWIND_IS_NATIVE_ONLY)
+# if defined(__linux__)
+#  define _LIBUNWIND_TARGET_LINUX 1
+# endif
 # if defined(__i386__)
 #  define _LIBUNWIND_TARGET_I386
 #  define _LIBUNWIND_CONTEXT_SIZE 8
@@ -51,7 +60,7 @@
 #  define _LIBUNWIND_CONTEXT_SIZE 167
 #  define _LIBUNWIND_CURSOR_SIZE 179
 #  define _LIBUNWIND_HIGHEST_DWARF_REGISTER _LIBUNWIND_HIGHEST_DWARF_REGISTER_PPC64
-# elif defined(__ppc__)
+# elif defined(__powerpc__)
 #  define _LIBUNWIND_TARGET_PPC 1
 #  define _LIBUNWIND_CONTEXT_SIZE 117
 #  define _LIBUNWIND_CURSOR_SIZE 124
@@ -121,20 +130,53 @@
 #    error "Unsupported MIPS ABI and/or environment"
 #  endif
 #  define _LIBUNWIND_HIGHEST_DWARF_REGISTER _LIBUNWIND_HIGHEST_DWARF_REGISTER_MIPS
+#elif defined(__sparc__) && defined(__arch64__)
+#define _LIBUNWIND_TARGET_SPARC64 1
+#define _LIBUNWIND_HIGHEST_DWARF_REGISTER                                      \
+  _LIBUNWIND_HIGHEST_DWARF_REGISTER_SPARC64
+#define _LIBUNWIND_CONTEXT_SIZE 33
+#define _LIBUNWIND_CURSOR_SIZE 45
 # elif defined(__sparc__)
   #define _LIBUNWIND_TARGET_SPARC 1
   #define _LIBUNWIND_HIGHEST_DWARF_REGISTER _LIBUNWIND_HIGHEST_DWARF_REGISTER_SPARC
   #define _LIBUNWIND_CONTEXT_SIZE 16
   #define _LIBUNWIND_CURSOR_SIZE 23
 # elif defined(__riscv)
-#  if __riscv_xlen == 64
-#    define _LIBUNWIND_TARGET_RISCV 1
-#    define _LIBUNWIND_CONTEXT_SIZE 64
-#    define _LIBUNWIND_CURSOR_SIZE 76
+#  define _LIBUNWIND_TARGET_RISCV 1
+#  if defined(__riscv_flen)
+#   define RISCV_FLEN __riscv_flen
 #  else
-#    error "Unsupported RISC-V ABI"
+#   define RISCV_FLEN 0
+#  endif
+#  define _LIBUNWIND_CONTEXT_SIZE (32 * (__riscv_xlen + RISCV_FLEN) / 64)
+#  if __riscv_xlen == 32
+#   define _LIBUNWIND_CURSOR_SIZE (_LIBUNWIND_CONTEXT_SIZE + 7)
+#  elif __riscv_xlen == 64
+#   define _LIBUNWIND_CURSOR_SIZE (_LIBUNWIND_CONTEXT_SIZE + 12)
+#  else
+#   error "Unsupported RISC-V ABI"
 #  endif
 # define _LIBUNWIND_HIGHEST_DWARF_REGISTER _LIBUNWIND_HIGHEST_DWARF_REGISTER_RISCV
+# elif defined(__ve__)
+#  define _LIBUNWIND_TARGET_VE 1
+#  define _LIBUNWIND_CONTEXT_SIZE 67
+#  define _LIBUNWIND_CURSOR_SIZE 79
+#  define _LIBUNWIND_HIGHEST_DWARF_REGISTER _LIBUNWIND_HIGHEST_DWARF_REGISTER_VE
+# elif defined(__s390x__)
+#  define _LIBUNWIND_TARGET_S390X 1
+#  define _LIBUNWIND_CONTEXT_SIZE 34
+#  define _LIBUNWIND_CURSOR_SIZE 46
+#  define _LIBUNWIND_HIGHEST_DWARF_REGISTER _LIBUNWIND_HIGHEST_DWARF_REGISTER_S390X
+#elif defined(__loongarch__)
+#define _LIBUNWIND_TARGET_LOONGARCH 1
+#if __loongarch_grlen == 64
+#define _LIBUNWIND_CONTEXT_SIZE 65
+#define _LIBUNWIND_CURSOR_SIZE 77
+#else
+#error "Unsupported LoongArch ABI"
+#endif
+#define _LIBUNWIND_HIGHEST_DWARF_REGISTER                                      \
+  _LIBUNWIND_HIGHEST_DWARF_REGISTER_LOONGARCH
 # else
 #  error "Unsupported architecture."
 # endif
@@ -149,8 +191,12 @@
 # define _LIBUNWIND_TARGET_MIPS_O32 1
 # define _LIBUNWIND_TARGET_MIPS_NEWABI 1
 # define _LIBUNWIND_TARGET_SPARC 1
+# define _LIBUNWIND_TARGET_SPARC64 1
 # define _LIBUNWIND_TARGET_HEXAGON 1
 # define _LIBUNWIND_TARGET_RISCV 1
+# define _LIBUNWIND_TARGET_VE 1
+# define _LIBUNWIND_TARGET_S390X 1
+#define _LIBUNWIND_TARGET_LOONGARCH 1
 # define _LIBUNWIND_CONTEXT_SIZE 167
 # define _LIBUNWIND_CURSOR_SIZE 179
 # define _LIBUNWIND_HIGHEST_DWARF_REGISTER 287