subject:"\[compiler\-rt\] \[libcxx\] \[libcxxabi\] \[libunwind\] \[libunwind\]\[libcxx\]\[libcxxabi\]\[compiler\-rt\-builtins\] Fix Exception Handling build for wasm \(PR #79667\)"

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-06-21 Thread via cfe-commits


https://github.com/trcrsired updated 
https://github.com/llvm/llvm-project/pull/79667

>From d105b0c1435cb5a8cc31eadd8a92f774b440f507 Mon Sep 17 00:00:00 2001
From: cqwrteur <100043421+trcrsi...@users.noreply.github.com>
Date: Sat, 1 Jun 2024 02:55:50 -0400
Subject: [PATCH] [libunwind][libcxx][libcxxabi] Fix Exception Handling build
 for wasm

The wasm unwind build appears to be dysfunctional, likely because the author 
has only supplied a customized LLVM build on request, rather than a fully 
functional patch.

This patch fixes the build

Apply formatting patch proposed by github bot

use "" to prevent CMAKE_SYSTEM_PROCESSOR not defined

[libunwind] logAPI functions should also be built

[libcxxabi] Fix function signatures for wasm

wasm does not define the function signatures correctly for cxxabi
Fix them

Fix formatting issues for libcxxabi's wasm eh change

Merge remote-tracking branch 'parent/main' into wasmlibunwindfix

remove unwanted changes in unwind-wasm.c

Make Unwind-wasm.c compile correctly without workaround in
CMakeLists.txt

using __wasm__ macro to guard against all wasm eh build

fix UnwindLevel.c's formatting issue

ISO C requires a translation unit to contain at least one declaration 
[-Werror,-Wempty-translation-unit]

compiler-rt does not define CMP_RESULT correct on wasm64
Fixed

Merge code
---
 compiler-rt/lib/builtins/fp_compare_impl.inc |   2 +-
 libcxx/include/__exception/exception_ptr.h   |  21 +-
 libcxxabi/include/cxxabi.h   | 179 ++---
 libcxxabi/src/cxa_exception.cpp  | 712 ---
 libcxxabi/src/cxa_exception.h|   7 +-
 libunwind/include/libunwind.h|   2 +
 libunwind/src/Unwind-wasm.c  |  13 +-
 libunwind/src/UnwindRegistersRestore.S   |   3 +-
 libunwind/src/UnwindRegistersSave.S  |   3 +
 libunwind/src/assembly.h |   2 +
 libunwind/src/cet_unwind.h   |   3 +
 libunwind/src/config.h   |  15 +-
 libunwind/src/libunwind.cpp  |   2 +
 libunwind/src/libunwind_ext.h|   2 +
 14 files changed, 423 insertions(+), 543 deletions(-)

diff --git a/compiler-rt/lib/builtins/fp_compare_impl.inc 
b/compiler-rt/lib/builtins/fp_compare_impl.inc
index a9a4f6fbf5dfe..83bdea46a45da 100644
--- a/compiler-rt/lib/builtins/fp_compare_impl.inc
+++ b/compiler-rt/lib/builtins/fp_compare_impl.inc
@@ -12,7 +12,7 @@
 // functions. We need to ensure that the return value is sign-extended in the
 // same way as GCC expects (since otherwise GCC-generated __builtin_isinf
 // returns true for finite 128-bit floating-point numbers).
-#ifdef __aarch64__
+#if defined(__aarch64__) || defined(__wasm__)
 // AArch64 GCC overrides libgcc_cmp_return to use int instead of long.
 typedef int CMP_RESULT;
 #elif __SIZEOF_POINTER__ == 8 && __SIZEOF_LONG__ == 4
diff --git a/libcxx/include/__exception/exception_ptr.h 
b/libcxx/include/__exception/exception_ptr.h
index 0a8337fa39de3..01f340a587ec3 100644
--- a/libcxx/include/__exception/exception_ptr.h
+++ b/libcxx/include/__exception/exception_ptr.h
@@ -29,22 +29,21 @@
 
 namespace __cxxabiv1 {
 
+#if defined(__wasm__)
+typedef void* (*__libcpp_exception_destructor_func)(void*);
+#elif defined(_WIN32)
+typedef void(__thiscall* __libcpp_exception_destructor_func)(void*);
+#else
+typedef void (*__libcpp_exception_destructor_func)(void*);
+#endif
+
 extern "C" {
 _LIBCPP_OVERRIDABLE_FUNC_VIS void* __cxa_allocate_exception(size_t) throw();
 _LIBCPP_OVERRIDABLE_FUNC_VIS void __cxa_free_exception(void*) throw();
 
 struct __cxa_exception;
-_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception* __cxa_init_primary_exception(
-void*,
-std::type_info*,
-#if defined(_WIN32)
-void(__thiscall*)(void*)) throw();
-#elif defined(__wasm__)
-// In Wasm, a destructor returns its argument
-void* (*)(void*)) throw();
-#else
-void (*)(void*)) throw();
-#endif
+_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception*
+__cxa_init_primary_exception(void*, std::type_info*, 
__libcpp_exception_destructor_func) throw();
 }
 
 } // namespace __cxxabiv1
diff --git a/libcxxabi/include/cxxabi.h b/libcxxabi/include/cxxabi.h
index 0e3969084e04f..4162fd7ec2ba7 100644
--- a/libcxxabi/include/cxxabi.h
+++ b/libcxxabi/include/cxxabi.h
@@ -20,62 +20,51 @@
 #include <__cxxabi_config.h>
 
 #define _LIBCPPABI_VERSION 15000
-#define _LIBCXXABI_NORETURN  __attribute__((noreturn))
+#define _LIBCXXABI_NORETURN __attribute__((noreturn))
 #define _LIBCXXABI_ALWAYS_COLD __attribute__((cold))
 
 #ifdef __cplusplus
 
 namespace std {
-#if defined(_WIN32)
+#  if defined(_WIN32)
 class _LIBCXXABI_TYPE_VIS type_info; // forward declaration
-#else
+#  else
 class type_info; // forward declaration
-#endif
-}
-
+#  endif
+} // namespace std
 
 // runtime routines use C calling conventions, but are in __cxxabiv1 namespace
 namespace __cxxabiv1 {
 
 struct __cxa_exception;
+#  if defined(__wasm__)
+typedef

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-06-15 Thread via cfe-commits


https://github.com/trcrsired updated 
https://github.com/llvm/llvm-project/pull/79667

>From d105b0c1435cb5a8cc31eadd8a92f774b440f507 Mon Sep 17 00:00:00 2001
From: cqwrteur <100043421+trcrsi...@users.noreply.github.com>
Date: Sat, 1 Jun 2024 02:55:50 -0400
Subject: [PATCH] [libunwind][libcxx][libcxxabi] Fix Exception Handling build
 for wasm

The wasm unwind build appears to be dysfunctional, likely because the author 
has only supplied a customized LLVM build on request, rather than a fully 
functional patch.

This patch fixes the build

Apply formatting patch proposed by github bot

use "" to prevent CMAKE_SYSTEM_PROCESSOR not defined

[libunwind] logAPI functions should also be built

[libcxxabi] Fix function signatures for wasm

wasm does not define the function signatures correctly for cxxabi
Fix them

Fix formatting issues for libcxxabi's wasm eh change

Merge remote-tracking branch 'parent/main' into wasmlibunwindfix

remove unwanted changes in unwind-wasm.c

Make Unwind-wasm.c compile correctly without workaround in
CMakeLists.txt

using __wasm__ macro to guard against all wasm eh build

fix UnwindLevel.c's formatting issue

ISO C requires a translation unit to contain at least one declaration 
[-Werror,-Wempty-translation-unit]

compiler-rt does not define CMP_RESULT correct on wasm64
Fixed

Merge code
---
 compiler-rt/lib/builtins/fp_compare_impl.inc |   2 +-
 libcxx/include/__exception/exception_ptr.h   |  21 +-
 libcxxabi/include/cxxabi.h   | 179 ++---
 libcxxabi/src/cxa_exception.cpp  | 712 ---
 libcxxabi/src/cxa_exception.h|   7 +-
 libunwind/include/libunwind.h|   2 +
 libunwind/src/Unwind-wasm.c  |  13 +-
 libunwind/src/UnwindRegistersRestore.S   |   3 +-
 libunwind/src/UnwindRegistersSave.S  |   3 +
 libunwind/src/assembly.h |   2 +
 libunwind/src/cet_unwind.h   |   3 +
 libunwind/src/config.h   |  15 +-
 libunwind/src/libunwind.cpp  |   2 +
 libunwind/src/libunwind_ext.h|   2 +
 14 files changed, 423 insertions(+), 543 deletions(-)

diff --git a/compiler-rt/lib/builtins/fp_compare_impl.inc 
b/compiler-rt/lib/builtins/fp_compare_impl.inc
index a9a4f6fbf5dfe..83bdea46a45da 100644
--- a/compiler-rt/lib/builtins/fp_compare_impl.inc
+++ b/compiler-rt/lib/builtins/fp_compare_impl.inc
@@ -12,7 +12,7 @@
 // functions. We need to ensure that the return value is sign-extended in the
 // same way as GCC expects (since otherwise GCC-generated __builtin_isinf
 // returns true for finite 128-bit floating-point numbers).
-#ifdef __aarch64__
+#if defined(__aarch64__) || defined(__wasm__)
 // AArch64 GCC overrides libgcc_cmp_return to use int instead of long.
 typedef int CMP_RESULT;
 #elif __SIZEOF_POINTER__ == 8 && __SIZEOF_LONG__ == 4
diff --git a/libcxx/include/__exception/exception_ptr.h 
b/libcxx/include/__exception/exception_ptr.h
index 0a8337fa39de3..01f340a587ec3 100644
--- a/libcxx/include/__exception/exception_ptr.h
+++ b/libcxx/include/__exception/exception_ptr.h
@@ -29,22 +29,21 @@
 
 namespace __cxxabiv1 {
 
+#if defined(__wasm__)
+typedef void* (*__libcpp_exception_destructor_func)(void*);
+#elif defined(_WIN32)
+typedef void(__thiscall* __libcpp_exception_destructor_func)(void*);
+#else
+typedef void (*__libcpp_exception_destructor_func)(void*);
+#endif
+
 extern "C" {
 _LIBCPP_OVERRIDABLE_FUNC_VIS void* __cxa_allocate_exception(size_t) throw();
 _LIBCPP_OVERRIDABLE_FUNC_VIS void __cxa_free_exception(void*) throw();
 
 struct __cxa_exception;
-_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception* __cxa_init_primary_exception(
-void*,
-std::type_info*,
-#if defined(_WIN32)
-void(__thiscall*)(void*)) throw();
-#elif defined(__wasm__)
-// In Wasm, a destructor returns its argument
-void* (*)(void*)) throw();
-#else
-void (*)(void*)) throw();
-#endif
+_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception*
+__cxa_init_primary_exception(void*, std::type_info*, 
__libcpp_exception_destructor_func) throw();
 }
 
 } // namespace __cxxabiv1
diff --git a/libcxxabi/include/cxxabi.h b/libcxxabi/include/cxxabi.h
index 0e3969084e04f..4162fd7ec2ba7 100644
--- a/libcxxabi/include/cxxabi.h
+++ b/libcxxabi/include/cxxabi.h
@@ -20,62 +20,51 @@
 #include <__cxxabi_config.h>
 
 #define _LIBCPPABI_VERSION 15000
-#define _LIBCXXABI_NORETURN  __attribute__((noreturn))
+#define _LIBCXXABI_NORETURN __attribute__((noreturn))
 #define _LIBCXXABI_ALWAYS_COLD __attribute__((cold))
 
 #ifdef __cplusplus
 
 namespace std {
-#if defined(_WIN32)
+#  if defined(_WIN32)
 class _LIBCXXABI_TYPE_VIS type_info; // forward declaration
-#else
+#  else
 class type_info; // forward declaration
-#endif
-}
-
+#  endif
+} // namespace std
 
 // runtime routines use C calling conventions, but are in __cxxabiv1 namespace
 namespace __cxxabiv1 {
 
 struct __cxa_exception;
+#  if defined(__wasm__)
+typedef

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-06-11 Thread via cfe-commits


https://github.com/trcrsired updated 
https://github.com/llvm/llvm-project/pull/79667

>From 4f1ce895254dd9505150c1f5f5cb77454b9aca68 Mon Sep 17 00:00:00 2001
From: cqwrteur <100043421+trcrsi...@users.noreply.github.com>
Date: Sat, 1 Jun 2024 02:55:50 -0400
Subject: [PATCH] [libunwind][libcxx][libcxxabi] Fix Exception Handling build
 for wasm

The wasm unwind build appears to be dysfunctional, likely because the author 
has only supplied a customized LLVM build on request, rather than a fully 
functional patch.

This patch fixes the build

Apply formatting patch proposed by github bot

use "" to prevent CMAKE_SYSTEM_PROCESSOR not defined

[libunwind] logAPI functions should also be built

[libcxxabi] Fix function signatures for wasm

wasm does not define the function signatures correctly for cxxabi
Fix them

Fix formatting issues for libcxxabi's wasm eh change

Merge remote-tracking branch 'parent/main' into wasmlibunwindfix

remove unwanted changes in unwind-wasm.c

Make Unwind-wasm.c compile correctly without workaround in
CMakeLists.txt

using __wasm__ macro to guard against all wasm eh build

fix UnwindLevel.c's formatting issue

ISO C requires a translation unit to contain at least one declaration 
[-Werror,-Wempty-translation-unit]

compiler-rt does not define CMP_RESULT correct on wasm64
Fixed

Merge code
---
 compiler-rt/lib/builtins/fp_compare_impl.inc |   2 +-
 libcxx/include/__exception/exception_ptr.h   |  21 +-
 libcxxabi/include/cxxabi.h   | 179 ++---
 libcxxabi/src/cxa_exception.cpp  | 712 ---
 libcxxabi/src/cxa_exception.h|   7 +-
 libunwind/include/libunwind.h|   2 +
 libunwind/src/Unwind-wasm.c  |  13 +-
 libunwind/src/UnwindRegistersRestore.S   |   3 +-
 libunwind/src/UnwindRegistersSave.S  |   3 +
 libunwind/src/assembly.h |   2 +
 libunwind/src/cet_unwind.h   |   3 +
 libunwind/src/config.h   |  15 +-
 libunwind/src/libunwind.cpp  |   2 +
 libunwind/src/libunwind_ext.h|   2 +
 14 files changed, 423 insertions(+), 543 deletions(-)

diff --git a/compiler-rt/lib/builtins/fp_compare_impl.inc 
b/compiler-rt/lib/builtins/fp_compare_impl.inc
index a9a4f6fbf5dfe..83bdea46a45da 100644
--- a/compiler-rt/lib/builtins/fp_compare_impl.inc
+++ b/compiler-rt/lib/builtins/fp_compare_impl.inc
@@ -12,7 +12,7 @@
 // functions. We need to ensure that the return value is sign-extended in the
 // same way as GCC expects (since otherwise GCC-generated __builtin_isinf
 // returns true for finite 128-bit floating-point numbers).
-#ifdef __aarch64__
+#if defined(__aarch64__) || defined(__wasm__)
 // AArch64 GCC overrides libgcc_cmp_return to use int instead of long.
 typedef int CMP_RESULT;
 #elif __SIZEOF_POINTER__ == 8 && __SIZEOF_LONG__ == 4
diff --git a/libcxx/include/__exception/exception_ptr.h 
b/libcxx/include/__exception/exception_ptr.h
index 0a8337fa39de3..01f340a587ec3 100644
--- a/libcxx/include/__exception/exception_ptr.h
+++ b/libcxx/include/__exception/exception_ptr.h
@@ -29,22 +29,21 @@
 
 namespace __cxxabiv1 {
 
+#if defined(__wasm__)
+typedef void* (*__libcpp_exception_destructor_func)(void*);
+#elif defined(_WIN32)
+typedef void(__thiscall* __libcpp_exception_destructor_func)(void*);
+#else
+typedef void (*__libcpp_exception_destructor_func)(void*);
+#endif
+
 extern "C" {
 _LIBCPP_OVERRIDABLE_FUNC_VIS void* __cxa_allocate_exception(size_t) throw();
 _LIBCPP_OVERRIDABLE_FUNC_VIS void __cxa_free_exception(void*) throw();
 
 struct __cxa_exception;
-_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception* __cxa_init_primary_exception(
-void*,
-std::type_info*,
-#if defined(_WIN32)
-void(__thiscall*)(void*)) throw();
-#elif defined(__wasm__)
-// In Wasm, a destructor returns its argument
-void* (*)(void*)) throw();
-#else
-void (*)(void*)) throw();
-#endif
+_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception*
+__cxa_init_primary_exception(void*, std::type_info*, 
__libcpp_exception_destructor_func) throw();
 }
 
 } // namespace __cxxabiv1
diff --git a/libcxxabi/include/cxxabi.h b/libcxxabi/include/cxxabi.h
index 0e3969084e04f..4162fd7ec2ba7 100644
--- a/libcxxabi/include/cxxabi.h
+++ b/libcxxabi/include/cxxabi.h
@@ -20,62 +20,51 @@
 #include <__cxxabi_config.h>
 
 #define _LIBCPPABI_VERSION 15000
-#define _LIBCXXABI_NORETURN  __attribute__((noreturn))
+#define _LIBCXXABI_NORETURN __attribute__((noreturn))
 #define _LIBCXXABI_ALWAYS_COLD __attribute__((cold))
 
 #ifdef __cplusplus
 
 namespace std {
-#if defined(_WIN32)
+#  if defined(_WIN32)
 class _LIBCXXABI_TYPE_VIS type_info; // forward declaration
-#else
+#  else
 class type_info; // forward declaration
-#endif
-}
-
+#  endif
+} // namespace std
 
 // runtime routines use C calling conventions, but are in __cxxabiv1 namespace
 namespace __cxxabiv1 {
 
 struct __cxa_exception;
+#  if defined(__wasm__)
+typedef

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-06-10 Thread via cfe-commits


https://github.com/trcrsired updated 
https://github.com/llvm/llvm-project/pull/79667

>From 4f1ce895254dd9505150c1f5f5cb77454b9aca68 Mon Sep 17 00:00:00 2001
From: cqwrteur <100043421+trcrsi...@users.noreply.github.com>
Date: Sat, 1 Jun 2024 02:55:50 -0400
Subject: [PATCH] [libunwind][libcxx][libcxxabi] Fix Exception Handling build
 for wasm

The wasm unwind build appears to be dysfunctional, likely because the author 
has only supplied a customized LLVM build on request, rather than a fully 
functional patch.

This patch fixes the build

Apply formatting patch proposed by github bot

use "" to prevent CMAKE_SYSTEM_PROCESSOR not defined

[libunwind] logAPI functions should also be built

[libcxxabi] Fix function signatures for wasm

wasm does not define the function signatures correctly for cxxabi
Fix them

Fix formatting issues for libcxxabi's wasm eh change

Merge remote-tracking branch 'parent/main' into wasmlibunwindfix

remove unwanted changes in unwind-wasm.c

Make Unwind-wasm.c compile correctly without workaround in
CMakeLists.txt

using __wasm__ macro to guard against all wasm eh build

fix UnwindLevel.c's formatting issue

ISO C requires a translation unit to contain at least one declaration 
[-Werror,-Wempty-translation-unit]

compiler-rt does not define CMP_RESULT correct on wasm64
Fixed

Merge code
---
 compiler-rt/lib/builtins/fp_compare_impl.inc |   2 +-
 libcxx/include/__exception/exception_ptr.h   |  21 +-
 libcxxabi/include/cxxabi.h   | 179 ++---
 libcxxabi/src/cxa_exception.cpp  | 712 ---
 libcxxabi/src/cxa_exception.h|   7 +-
 libunwind/include/libunwind.h|   2 +
 libunwind/src/Unwind-wasm.c  |  13 +-
 libunwind/src/UnwindRegistersRestore.S   |   3 +-
 libunwind/src/UnwindRegistersSave.S  |   3 +
 libunwind/src/assembly.h |   2 +
 libunwind/src/cet_unwind.h   |   3 +
 libunwind/src/config.h   |  15 +-
 libunwind/src/libunwind.cpp  |   2 +
 libunwind/src/libunwind_ext.h|   2 +
 14 files changed, 423 insertions(+), 543 deletions(-)

diff --git a/compiler-rt/lib/builtins/fp_compare_impl.inc 
b/compiler-rt/lib/builtins/fp_compare_impl.inc
index a9a4f6fbf5dfe..83bdea46a45da 100644
--- a/compiler-rt/lib/builtins/fp_compare_impl.inc
+++ b/compiler-rt/lib/builtins/fp_compare_impl.inc
@@ -12,7 +12,7 @@
 // functions. We need to ensure that the return value is sign-extended in the
 // same way as GCC expects (since otherwise GCC-generated __builtin_isinf
 // returns true for finite 128-bit floating-point numbers).
-#ifdef __aarch64__
+#if defined(__aarch64__) || defined(__wasm__)
 // AArch64 GCC overrides libgcc_cmp_return to use int instead of long.
 typedef int CMP_RESULT;
 #elif __SIZEOF_POINTER__ == 8 && __SIZEOF_LONG__ == 4
diff --git a/libcxx/include/__exception/exception_ptr.h 
b/libcxx/include/__exception/exception_ptr.h
index 0a8337fa39de3..01f340a587ec3 100644
--- a/libcxx/include/__exception/exception_ptr.h
+++ b/libcxx/include/__exception/exception_ptr.h
@@ -29,22 +29,21 @@
 
 namespace __cxxabiv1 {
 
+#if defined(__wasm__)
+typedef void* (*__libcpp_exception_destructor_func)(void*);
+#elif defined(_WIN32)
+typedef void(__thiscall* __libcpp_exception_destructor_func)(void*);
+#else
+typedef void (*__libcpp_exception_destructor_func)(void*);
+#endif
+
 extern "C" {
 _LIBCPP_OVERRIDABLE_FUNC_VIS void* __cxa_allocate_exception(size_t) throw();
 _LIBCPP_OVERRIDABLE_FUNC_VIS void __cxa_free_exception(void*) throw();
 
 struct __cxa_exception;
-_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception* __cxa_init_primary_exception(
-void*,
-std::type_info*,
-#if defined(_WIN32)
-void(__thiscall*)(void*)) throw();
-#elif defined(__wasm__)
-// In Wasm, a destructor returns its argument
-void* (*)(void*)) throw();
-#else
-void (*)(void*)) throw();
-#endif
+_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception*
+__cxa_init_primary_exception(void*, std::type_info*, 
__libcpp_exception_destructor_func) throw();
 }
 
 } // namespace __cxxabiv1
diff --git a/libcxxabi/include/cxxabi.h b/libcxxabi/include/cxxabi.h
index 0e3969084e04f..4162fd7ec2ba7 100644
--- a/libcxxabi/include/cxxabi.h
+++ b/libcxxabi/include/cxxabi.h
@@ -20,62 +20,51 @@
 #include <__cxxabi_config.h>
 
 #define _LIBCPPABI_VERSION 15000
-#define _LIBCXXABI_NORETURN  __attribute__((noreturn))
+#define _LIBCXXABI_NORETURN __attribute__((noreturn))
 #define _LIBCXXABI_ALWAYS_COLD __attribute__((cold))
 
 #ifdef __cplusplus
 
 namespace std {
-#if defined(_WIN32)
+#  if defined(_WIN32)
 class _LIBCXXABI_TYPE_VIS type_info; // forward declaration
-#else
+#  else
 class type_info; // forward declaration
-#endif
-}
-
+#  endif
+} // namespace std
 
 // runtime routines use C calling conventions, but are in __cxxabiv1 namespace
 namespace __cxxabiv1 {
 
 struct __cxa_exception;
+#  if defined(__wasm__)
+typedef

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-06-07 Thread via cfe-commits


https://github.com/trcrsired updated 
https://github.com/llvm/llvm-project/pull/79667

>From 4f1ce895254dd9505150c1f5f5cb77454b9aca68 Mon Sep 17 00:00:00 2001
From: cqwrteur <100043421+trcrsi...@users.noreply.github.com>
Date: Sat, 1 Jun 2024 02:55:50 -0400
Subject: [PATCH] [libunwind][libcxx][libcxxabi] Fix Exception Handling build
 for wasm

The wasm unwind build appears to be dysfunctional, likely because the author 
has only supplied a customized LLVM build on request, rather than a fully 
functional patch.

This patch fixes the build

Apply formatting patch proposed by github bot

use "" to prevent CMAKE_SYSTEM_PROCESSOR not defined

[libunwind] logAPI functions should also be built

[libcxxabi] Fix function signatures for wasm

wasm does not define the function signatures correctly for cxxabi
Fix them

Fix formatting issues for libcxxabi's wasm eh change

Merge remote-tracking branch 'parent/main' into wasmlibunwindfix

remove unwanted changes in unwind-wasm.c

Make Unwind-wasm.c compile correctly without workaround in
CMakeLists.txt

using __wasm__ macro to guard against all wasm eh build

fix UnwindLevel.c's formatting issue

ISO C requires a translation unit to contain at least one declaration 
[-Werror,-Wempty-translation-unit]

compiler-rt does not define CMP_RESULT correct on wasm64
Fixed

Merge code
---
 compiler-rt/lib/builtins/fp_compare_impl.inc |   2 +-
 libcxx/include/__exception/exception_ptr.h   |  21 +-
 libcxxabi/include/cxxabi.h   | 179 ++---
 libcxxabi/src/cxa_exception.cpp  | 712 ---
 libcxxabi/src/cxa_exception.h|   7 +-
 libunwind/include/libunwind.h|   2 +
 libunwind/src/Unwind-wasm.c  |  13 +-
 libunwind/src/UnwindRegistersRestore.S   |   3 +-
 libunwind/src/UnwindRegistersSave.S  |   3 +
 libunwind/src/assembly.h |   2 +
 libunwind/src/cet_unwind.h   |   3 +
 libunwind/src/config.h   |  15 +-
 libunwind/src/libunwind.cpp  |   2 +
 libunwind/src/libunwind_ext.h|   2 +
 14 files changed, 423 insertions(+), 543 deletions(-)

diff --git a/compiler-rt/lib/builtins/fp_compare_impl.inc 
b/compiler-rt/lib/builtins/fp_compare_impl.inc
index a9a4f6fbf5dfe..83bdea46a45da 100644
--- a/compiler-rt/lib/builtins/fp_compare_impl.inc
+++ b/compiler-rt/lib/builtins/fp_compare_impl.inc
@@ -12,7 +12,7 @@
 // functions. We need to ensure that the return value is sign-extended in the
 // same way as GCC expects (since otherwise GCC-generated __builtin_isinf
 // returns true for finite 128-bit floating-point numbers).
-#ifdef __aarch64__
+#if defined(__aarch64__) || defined(__wasm__)
 // AArch64 GCC overrides libgcc_cmp_return to use int instead of long.
 typedef int CMP_RESULT;
 #elif __SIZEOF_POINTER__ == 8 && __SIZEOF_LONG__ == 4
diff --git a/libcxx/include/__exception/exception_ptr.h 
b/libcxx/include/__exception/exception_ptr.h
index 0a8337fa39de3..01f340a587ec3 100644
--- a/libcxx/include/__exception/exception_ptr.h
+++ b/libcxx/include/__exception/exception_ptr.h
@@ -29,22 +29,21 @@
 
 namespace __cxxabiv1 {
 
+#if defined(__wasm__)
+typedef void* (*__libcpp_exception_destructor_func)(void*);
+#elif defined(_WIN32)
+typedef void(__thiscall* __libcpp_exception_destructor_func)(void*);
+#else
+typedef void (*__libcpp_exception_destructor_func)(void*);
+#endif
+
 extern "C" {
 _LIBCPP_OVERRIDABLE_FUNC_VIS void* __cxa_allocate_exception(size_t) throw();
 _LIBCPP_OVERRIDABLE_FUNC_VIS void __cxa_free_exception(void*) throw();
 
 struct __cxa_exception;
-_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception* __cxa_init_primary_exception(
-void*,
-std::type_info*,
-#if defined(_WIN32)
-void(__thiscall*)(void*)) throw();
-#elif defined(__wasm__)
-// In Wasm, a destructor returns its argument
-void* (*)(void*)) throw();
-#else
-void (*)(void*)) throw();
-#endif
+_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception*
+__cxa_init_primary_exception(void*, std::type_info*, 
__libcpp_exception_destructor_func) throw();
 }
 
 } // namespace __cxxabiv1
diff --git a/libcxxabi/include/cxxabi.h b/libcxxabi/include/cxxabi.h
index 0e3969084e04f..4162fd7ec2ba7 100644
--- a/libcxxabi/include/cxxabi.h
+++ b/libcxxabi/include/cxxabi.h
@@ -20,62 +20,51 @@
 #include <__cxxabi_config.h>
 
 #define _LIBCPPABI_VERSION 15000
-#define _LIBCXXABI_NORETURN  __attribute__((noreturn))
+#define _LIBCXXABI_NORETURN __attribute__((noreturn))
 #define _LIBCXXABI_ALWAYS_COLD __attribute__((cold))
 
 #ifdef __cplusplus
 
 namespace std {
-#if defined(_WIN32)
+#  if defined(_WIN32)
 class _LIBCXXABI_TYPE_VIS type_info; // forward declaration
-#else
+#  else
 class type_info; // forward declaration
-#endif
-}
-
+#  endif
+} // namespace std
 
 // runtime routines use C calling conventions, but are in __cxxabiv1 namespace
 namespace __cxxabiv1 {
 
 struct __cxa_exception;
+#  if defined(__wasm__)
+typedef

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-06-07 Thread via cfe-commits


https://github.com/trcrsired updated 
https://github.com/llvm/llvm-project/pull/79667

>From 4f1ce895254dd9505150c1f5f5cb77454b9aca68 Mon Sep 17 00:00:00 2001
From: cqwrteur <100043421+trcrsi...@users.noreply.github.com>
Date: Sat, 1 Jun 2024 02:55:50 -0400
Subject: [PATCH] [libunwind][libcxx][libcxxabi] Fix Exception Handling build
 for wasm

The wasm unwind build appears to be dysfunctional, likely because the author 
has only supplied a customized LLVM build on request, rather than a fully 
functional patch.

This patch fixes the build

Apply formatting patch proposed by github bot

use "" to prevent CMAKE_SYSTEM_PROCESSOR not defined

[libunwind] logAPI functions should also be built

[libcxxabi] Fix function signatures for wasm

wasm does not define the function signatures correctly for cxxabi
Fix them

Fix formatting issues for libcxxabi's wasm eh change

Merge remote-tracking branch 'parent/main' into wasmlibunwindfix

remove unwanted changes in unwind-wasm.c

Make Unwind-wasm.c compile correctly without workaround in
CMakeLists.txt

using __wasm__ macro to guard against all wasm eh build

fix UnwindLevel.c's formatting issue

ISO C requires a translation unit to contain at least one declaration 
[-Werror,-Wempty-translation-unit]

compiler-rt does not define CMP_RESULT correct on wasm64
Fixed

Merge code
---
 compiler-rt/lib/builtins/fp_compare_impl.inc |   2 +-
 libcxx/include/__exception/exception_ptr.h   |  21 +-
 libcxxabi/include/cxxabi.h   | 179 ++---
 libcxxabi/src/cxa_exception.cpp  | 712 ---
 libcxxabi/src/cxa_exception.h|   7 +-
 libunwind/include/libunwind.h|   2 +
 libunwind/src/Unwind-wasm.c  |  13 +-
 libunwind/src/UnwindRegistersRestore.S   |   3 +-
 libunwind/src/UnwindRegistersSave.S  |   3 +
 libunwind/src/assembly.h |   2 +
 libunwind/src/cet_unwind.h   |   3 +
 libunwind/src/config.h   |  15 +-
 libunwind/src/libunwind.cpp  |   2 +
 libunwind/src/libunwind_ext.h|   2 +
 14 files changed, 423 insertions(+), 543 deletions(-)

diff --git a/compiler-rt/lib/builtins/fp_compare_impl.inc 
b/compiler-rt/lib/builtins/fp_compare_impl.inc
index a9a4f6fbf5dfe..83bdea46a45da 100644
--- a/compiler-rt/lib/builtins/fp_compare_impl.inc
+++ b/compiler-rt/lib/builtins/fp_compare_impl.inc
@@ -12,7 +12,7 @@
 // functions. We need to ensure that the return value is sign-extended in the
 // same way as GCC expects (since otherwise GCC-generated __builtin_isinf
 // returns true for finite 128-bit floating-point numbers).
-#ifdef __aarch64__
+#if defined(__aarch64__) || defined(__wasm__)
 // AArch64 GCC overrides libgcc_cmp_return to use int instead of long.
 typedef int CMP_RESULT;
 #elif __SIZEOF_POINTER__ == 8 && __SIZEOF_LONG__ == 4
diff --git a/libcxx/include/__exception/exception_ptr.h 
b/libcxx/include/__exception/exception_ptr.h
index 0a8337fa39de3..01f340a587ec3 100644
--- a/libcxx/include/__exception/exception_ptr.h
+++ b/libcxx/include/__exception/exception_ptr.h
@@ -29,22 +29,21 @@
 
 namespace __cxxabiv1 {
 
+#if defined(__wasm__)
+typedef void* (*__libcpp_exception_destructor_func)(void*);
+#elif defined(_WIN32)
+typedef void(__thiscall* __libcpp_exception_destructor_func)(void*);
+#else
+typedef void (*__libcpp_exception_destructor_func)(void*);
+#endif
+
 extern "C" {
 _LIBCPP_OVERRIDABLE_FUNC_VIS void* __cxa_allocate_exception(size_t) throw();
 _LIBCPP_OVERRIDABLE_FUNC_VIS void __cxa_free_exception(void*) throw();
 
 struct __cxa_exception;
-_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception* __cxa_init_primary_exception(
-void*,
-std::type_info*,
-#if defined(_WIN32)
-void(__thiscall*)(void*)) throw();
-#elif defined(__wasm__)
-// In Wasm, a destructor returns its argument
-void* (*)(void*)) throw();
-#else
-void (*)(void*)) throw();
-#endif
+_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception*
+__cxa_init_primary_exception(void*, std::type_info*, 
__libcpp_exception_destructor_func) throw();
 }
 
 } // namespace __cxxabiv1
diff --git a/libcxxabi/include/cxxabi.h b/libcxxabi/include/cxxabi.h
index 0e3969084e04f..4162fd7ec2ba7 100644
--- a/libcxxabi/include/cxxabi.h
+++ b/libcxxabi/include/cxxabi.h
@@ -20,62 +20,51 @@
 #include <__cxxabi_config.h>
 
 #define _LIBCPPABI_VERSION 15000
-#define _LIBCXXABI_NORETURN  __attribute__((noreturn))
+#define _LIBCXXABI_NORETURN __attribute__((noreturn))
 #define _LIBCXXABI_ALWAYS_COLD __attribute__((cold))
 
 #ifdef __cplusplus
 
 namespace std {
-#if defined(_WIN32)
+#  if defined(_WIN32)
 class _LIBCXXABI_TYPE_VIS type_info; // forward declaration
-#else
+#  else
 class type_info; // forward declaration
-#endif
-}
-
+#  endif
+} // namespace std
 
 // runtime routines use C calling conventions, but are in __cxxabiv1 namespace
 namespace __cxxabiv1 {
 
 struct __cxa_exception;
+#  if defined(__wasm__)
+typedef

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-06-02 Thread via cfe-commits


https://github.com/trcrsired updated 
https://github.com/llvm/llvm-project/pull/79667

>From 4f1ce895254dd9505150c1f5f5cb77454b9aca68 Mon Sep 17 00:00:00 2001
From: cqwrteur <100043421+trcrsi...@users.noreply.github.com>
Date: Sat, 1 Jun 2024 02:55:50 -0400
Subject: [PATCH] [libunwind][libcxx][libcxxabi] Fix Exception Handling build
 for wasm

The wasm unwind build appears to be dysfunctional, likely because the author 
has only supplied a customized LLVM build on request, rather than a fully 
functional patch.

This patch fixes the build

Apply formatting patch proposed by github bot

use "" to prevent CMAKE_SYSTEM_PROCESSOR not defined

[libunwind] logAPI functions should also be built

[libcxxabi] Fix function signatures for wasm

wasm does not define the function signatures correctly for cxxabi
Fix them

Fix formatting issues for libcxxabi's wasm eh change

Merge remote-tracking branch 'parent/main' into wasmlibunwindfix

remove unwanted changes in unwind-wasm.c

Make Unwind-wasm.c compile correctly without workaround in
CMakeLists.txt

using __wasm__ macro to guard against all wasm eh build

fix UnwindLevel.c's formatting issue

ISO C requires a translation unit to contain at least one declaration 
[-Werror,-Wempty-translation-unit]

compiler-rt does not define CMP_RESULT correct on wasm64
Fixed

Merge code
---
 compiler-rt/lib/builtins/fp_compare_impl.inc |   2 +-
 libcxx/include/__exception/exception_ptr.h   |  21 +-
 libcxxabi/include/cxxabi.h   | 179 ++---
 libcxxabi/src/cxa_exception.cpp  | 712 ---
 libcxxabi/src/cxa_exception.h|   7 +-
 libunwind/include/libunwind.h|   2 +
 libunwind/src/Unwind-wasm.c  |  13 +-
 libunwind/src/UnwindRegistersRestore.S   |   3 +-
 libunwind/src/UnwindRegistersSave.S  |   3 +
 libunwind/src/assembly.h |   2 +
 libunwind/src/cet_unwind.h   |   3 +
 libunwind/src/config.h   |  15 +-
 libunwind/src/libunwind.cpp  |   2 +
 libunwind/src/libunwind_ext.h|   2 +
 14 files changed, 423 insertions(+), 543 deletions(-)

diff --git a/compiler-rt/lib/builtins/fp_compare_impl.inc 
b/compiler-rt/lib/builtins/fp_compare_impl.inc
index a9a4f6fbf5dfe..83bdea46a45da 100644
--- a/compiler-rt/lib/builtins/fp_compare_impl.inc
+++ b/compiler-rt/lib/builtins/fp_compare_impl.inc
@@ -12,7 +12,7 @@
 // functions. We need to ensure that the return value is sign-extended in the
 // same way as GCC expects (since otherwise GCC-generated __builtin_isinf
 // returns true for finite 128-bit floating-point numbers).
-#ifdef __aarch64__
+#if defined(__aarch64__) || defined(__wasm__)
 // AArch64 GCC overrides libgcc_cmp_return to use int instead of long.
 typedef int CMP_RESULT;
 #elif __SIZEOF_POINTER__ == 8 && __SIZEOF_LONG__ == 4
diff --git a/libcxx/include/__exception/exception_ptr.h 
b/libcxx/include/__exception/exception_ptr.h
index 0a8337fa39de3..01f340a587ec3 100644
--- a/libcxx/include/__exception/exception_ptr.h
+++ b/libcxx/include/__exception/exception_ptr.h
@@ -29,22 +29,21 @@
 
 namespace __cxxabiv1 {
 
+#if defined(__wasm__)
+typedef void* (*__libcpp_exception_destructor_func)(void*);
+#elif defined(_WIN32)
+typedef void(__thiscall* __libcpp_exception_destructor_func)(void*);
+#else
+typedef void (*__libcpp_exception_destructor_func)(void*);
+#endif
+
 extern "C" {
 _LIBCPP_OVERRIDABLE_FUNC_VIS void* __cxa_allocate_exception(size_t) throw();
 _LIBCPP_OVERRIDABLE_FUNC_VIS void __cxa_free_exception(void*) throw();
 
 struct __cxa_exception;
-_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception* __cxa_init_primary_exception(
-void*,
-std::type_info*,
-#if defined(_WIN32)
-void(__thiscall*)(void*)) throw();
-#elif defined(__wasm__)
-// In Wasm, a destructor returns its argument
-void* (*)(void*)) throw();
-#else
-void (*)(void*)) throw();
-#endif
+_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception*
+__cxa_init_primary_exception(void*, std::type_info*, 
__libcpp_exception_destructor_func) throw();
 }
 
 } // namespace __cxxabiv1
diff --git a/libcxxabi/include/cxxabi.h b/libcxxabi/include/cxxabi.h
index 0e3969084e04f..4162fd7ec2ba7 100644
--- a/libcxxabi/include/cxxabi.h
+++ b/libcxxabi/include/cxxabi.h
@@ -20,62 +20,51 @@
 #include <__cxxabi_config.h>
 
 #define _LIBCPPABI_VERSION 15000
-#define _LIBCXXABI_NORETURN  __attribute__((noreturn))
+#define _LIBCXXABI_NORETURN __attribute__((noreturn))
 #define _LIBCXXABI_ALWAYS_COLD __attribute__((cold))
 
 #ifdef __cplusplus
 
 namespace std {
-#if defined(_WIN32)
+#  if defined(_WIN32)
 class _LIBCXXABI_TYPE_VIS type_info; // forward declaration
-#else
+#  else
 class type_info; // forward declaration
-#endif
-}
-
+#  endif
+} // namespace std
 
 // runtime routines use C calling conventions, but are in __cxxabiv1 namespace
 namespace __cxxabiv1 {
 
 struct __cxa_exception;
+#  if defined(__wasm__)
+typedef

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-06-02 Thread via cfe-commits


https://github.com/trcrsired updated 
https://github.com/llvm/llvm-project/pull/79667

>From ba9b31041671099434570c6d3301782bc41c2c4a Mon Sep 17 00:00:00 2001
From: cqwrteur <100043421+trcrsi...@users.noreply.github.com>
Date: Sat, 1 Jun 2024 02:55:50 -0400
Subject: [PATCH] [libunwind][libcxx][libcxxabi] Fix Exception Handling build
 for wasm

The wasm unwind build appears to be dysfunctional, likely because the author 
has only supplied a customized LLVM build on request, rather than a fully 
functional patch.

This patch fixes the build

Apply formatting patch proposed by github bot

use "" to prevent CMAKE_SYSTEM_PROCESSOR not defined

[libunwind] logAPI functions should also be built

[libcxxabi] Fix function signatures for wasm

wasm does not define the function signatures correctly for cxxabi
Fix them

Fix formatting issues for libcxxabi's wasm eh change

Merge remote-tracking branch 'parent/main' into wasmlibunwindfix

remove unwanted changes in unwind-wasm.c

Make Unwind-wasm.c compile correctly without workaround in
CMakeLists.txt

using __wasm__ macro to guard against all wasm eh build

fix UnwindLevel.c's formatting issue

ISO C requires a translation unit to contain at least one declaration 
[-Werror,-Wempty-translation-unit]

compiler-rt does not define CMP_RESULT correct on wasm64
Fixed

Merge code
---
 compiler-rt/lib/builtins/fp_compare_impl.inc |   2 +-
 libcxx/include/__exception/exception_ptr.h   |  21 +-
 libcxxabi/include/cxxabi.h   | 179 ++---
 libcxxabi/src/cxa_exception.cpp  | 712 ---
 libcxxabi/src/cxa_exception.h|   7 +-
 libunwind/include/libunwind.h|   2 +
 libunwind/src/Unwind-wasm.c  |  13 +-
 libunwind/src/UnwindRegistersRestore.S   |   3 +-
 libunwind/src/UnwindRegistersSave.S  |   3 +
 libunwind/src/assembly.h |   2 +
 libunwind/src/cet_unwind.h   |   3 +
 libunwind/src/config.h   |  15 +-
 libunwind/src/libunwind.cpp  |   2 +
 libunwind/src/libunwind_ext.h|   2 +
 14 files changed, 423 insertions(+), 543 deletions(-)

diff --git a/compiler-rt/lib/builtins/fp_compare_impl.inc 
b/compiler-rt/lib/builtins/fp_compare_impl.inc
index a9a4f6fbf5dfe..83bdea46a45da 100644
--- a/compiler-rt/lib/builtins/fp_compare_impl.inc
+++ b/compiler-rt/lib/builtins/fp_compare_impl.inc
@@ -12,7 +12,7 @@
 // functions. We need to ensure that the return value is sign-extended in the
 // same way as GCC expects (since otherwise GCC-generated __builtin_isinf
 // returns true for finite 128-bit floating-point numbers).
-#ifdef __aarch64__
+#if defined(__aarch64__) || defined(__wasm__)
 // AArch64 GCC overrides libgcc_cmp_return to use int instead of long.
 typedef int CMP_RESULT;
 #elif __SIZEOF_POINTER__ == 8 && __SIZEOF_LONG__ == 4
diff --git a/libcxx/include/__exception/exception_ptr.h 
b/libcxx/include/__exception/exception_ptr.h
index 0a8337fa39de3..01f340a587ec3 100644
--- a/libcxx/include/__exception/exception_ptr.h
+++ b/libcxx/include/__exception/exception_ptr.h
@@ -29,22 +29,21 @@
 
 namespace __cxxabiv1 {
 
+#if defined(__wasm__)
+typedef void* (*__libcpp_exception_destructor_func)(void*);
+#elif defined(_WIN32)
+typedef void(__thiscall* __libcpp_exception_destructor_func)(void*);
+#else
+typedef void (*__libcpp_exception_destructor_func)(void*);
+#endif
+
 extern "C" {
 _LIBCPP_OVERRIDABLE_FUNC_VIS void* __cxa_allocate_exception(size_t) throw();
 _LIBCPP_OVERRIDABLE_FUNC_VIS void __cxa_free_exception(void*) throw();
 
 struct __cxa_exception;
-_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception* __cxa_init_primary_exception(
-void*,
-std::type_info*,
-#if defined(_WIN32)
-void(__thiscall*)(void*)) throw();
-#elif defined(__wasm__)
-// In Wasm, a destructor returns its argument
-void* (*)(void*)) throw();
-#else
-void (*)(void*)) throw();
-#endif
+_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception*
+__cxa_init_primary_exception(void*, std::type_info*, 
__libcpp_exception_destructor_func) throw();
 }
 
 } // namespace __cxxabiv1
diff --git a/libcxxabi/include/cxxabi.h b/libcxxabi/include/cxxabi.h
index 0e3969084e04f..4162fd7ec2ba7 100644
--- a/libcxxabi/include/cxxabi.h
+++ b/libcxxabi/include/cxxabi.h
@@ -20,62 +20,51 @@
 #include <__cxxabi_config.h>
 
 #define _LIBCPPABI_VERSION 15000
-#define _LIBCXXABI_NORETURN  __attribute__((noreturn))
+#define _LIBCXXABI_NORETURN __attribute__((noreturn))
 #define _LIBCXXABI_ALWAYS_COLD __attribute__((cold))
 
 #ifdef __cplusplus
 
 namespace std {
-#if defined(_WIN32)
+#  if defined(_WIN32)
 class _LIBCXXABI_TYPE_VIS type_info; // forward declaration
-#else
+#  else
 class type_info; // forward declaration
-#endif
-}
-
+#  endif
+} // namespace std
 
 // runtime routines use C calling conventions, but are in __cxxabiv1 namespace
 namespace __cxxabiv1 {
 
 struct __cxa_exception;
+#  if defined(__wasm__)
+typedef

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-06-01 Thread via cfe-commits


https://github.com/trcrsired updated 
https://github.com/llvm/llvm-project/pull/79667

>From ba9b31041671099434570c6d3301782bc41c2c4a Mon Sep 17 00:00:00 2001
From: cqwrteur <100043421+trcrsi...@users.noreply.github.com>
Date: Sat, 1 Jun 2024 02:55:50 -0400
Subject: [PATCH] [libunwind][libcxx][libcxxabi] Fix Exception Handling build
 for wasm

The wasm unwind build appears to be dysfunctional, likely because the author 
has only supplied a customized LLVM build on request, rather than a fully 
functional patch.

This patch fixes the build

Apply formatting patch proposed by github bot

use "" to prevent CMAKE_SYSTEM_PROCESSOR not defined

[libunwind] logAPI functions should also be built

[libcxxabi] Fix function signatures for wasm

wasm does not define the function signatures correctly for cxxabi
Fix them

Fix formatting issues for libcxxabi's wasm eh change

Merge remote-tracking branch 'parent/main' into wasmlibunwindfix

remove unwanted changes in unwind-wasm.c

Make Unwind-wasm.c compile correctly without workaround in
CMakeLists.txt

using __wasm__ macro to guard against all wasm eh build

fix UnwindLevel.c's formatting issue

ISO C requires a translation unit to contain at least one declaration 
[-Werror,-Wempty-translation-unit]

compiler-rt does not define CMP_RESULT correct on wasm64
Fixed

Merge code
---
 compiler-rt/lib/builtins/fp_compare_impl.inc |   2 +-
 libcxx/include/__exception/exception_ptr.h   |  21 +-
 libcxxabi/include/cxxabi.h   | 179 ++---
 libcxxabi/src/cxa_exception.cpp  | 712 ---
 libcxxabi/src/cxa_exception.h|   7 +-
 libunwind/include/libunwind.h|   2 +
 libunwind/src/Unwind-wasm.c  |  13 +-
 libunwind/src/UnwindRegistersRestore.S   |   3 +-
 libunwind/src/UnwindRegistersSave.S  |   3 +
 libunwind/src/assembly.h |   2 +
 libunwind/src/cet_unwind.h   |   3 +
 libunwind/src/config.h   |  15 +-
 libunwind/src/libunwind.cpp  |   2 +
 libunwind/src/libunwind_ext.h|   2 +
 14 files changed, 423 insertions(+), 543 deletions(-)

diff --git a/compiler-rt/lib/builtins/fp_compare_impl.inc 
b/compiler-rt/lib/builtins/fp_compare_impl.inc
index a9a4f6fbf5dfe..83bdea46a45da 100644
--- a/compiler-rt/lib/builtins/fp_compare_impl.inc
+++ b/compiler-rt/lib/builtins/fp_compare_impl.inc
@@ -12,7 +12,7 @@
 // functions. We need to ensure that the return value is sign-extended in the
 // same way as GCC expects (since otherwise GCC-generated __builtin_isinf
 // returns true for finite 128-bit floating-point numbers).
-#ifdef __aarch64__
+#if defined(__aarch64__) || defined(__wasm__)
 // AArch64 GCC overrides libgcc_cmp_return to use int instead of long.
 typedef int CMP_RESULT;
 #elif __SIZEOF_POINTER__ == 8 && __SIZEOF_LONG__ == 4
diff --git a/libcxx/include/__exception/exception_ptr.h 
b/libcxx/include/__exception/exception_ptr.h
index 0a8337fa39de3..01f340a587ec3 100644
--- a/libcxx/include/__exception/exception_ptr.h
+++ b/libcxx/include/__exception/exception_ptr.h
@@ -29,22 +29,21 @@
 
 namespace __cxxabiv1 {
 
+#if defined(__wasm__)
+typedef void* (*__libcpp_exception_destructor_func)(void*);
+#elif defined(_WIN32)
+typedef void(__thiscall* __libcpp_exception_destructor_func)(void*);
+#else
+typedef void (*__libcpp_exception_destructor_func)(void*);
+#endif
+
 extern "C" {
 _LIBCPP_OVERRIDABLE_FUNC_VIS void* __cxa_allocate_exception(size_t) throw();
 _LIBCPP_OVERRIDABLE_FUNC_VIS void __cxa_free_exception(void*) throw();
 
 struct __cxa_exception;
-_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception* __cxa_init_primary_exception(
-void*,
-std::type_info*,
-#if defined(_WIN32)
-void(__thiscall*)(void*)) throw();
-#elif defined(__wasm__)
-// In Wasm, a destructor returns its argument
-void* (*)(void*)) throw();
-#else
-void (*)(void*)) throw();
-#endif
+_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception*
+__cxa_init_primary_exception(void*, std::type_info*, 
__libcpp_exception_destructor_func) throw();
 }
 
 } // namespace __cxxabiv1
diff --git a/libcxxabi/include/cxxabi.h b/libcxxabi/include/cxxabi.h
index 0e3969084e04f..4162fd7ec2ba7 100644
--- a/libcxxabi/include/cxxabi.h
+++ b/libcxxabi/include/cxxabi.h
@@ -20,62 +20,51 @@
 #include <__cxxabi_config.h>
 
 #define _LIBCPPABI_VERSION 15000
-#define _LIBCXXABI_NORETURN  __attribute__((noreturn))
+#define _LIBCXXABI_NORETURN __attribute__((noreturn))
 #define _LIBCXXABI_ALWAYS_COLD __attribute__((cold))
 
 #ifdef __cplusplus
 
 namespace std {
-#if defined(_WIN32)
+#  if defined(_WIN32)
 class _LIBCXXABI_TYPE_VIS type_info; // forward declaration
-#else
+#  else
 class type_info; // forward declaration
-#endif
-}
-
+#  endif
+} // namespace std
 
 // runtime routines use C calling conventions, but are in __cxxabiv1 namespace
 namespace __cxxabiv1 {
 
 struct __cxa_exception;
+#  if defined(__wasm__)
+typedef

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-06-01 Thread via cfe-commits


https://github.com/trcrsired updated 
https://github.com/llvm/llvm-project/pull/79667

>From d73a87b47a549aeac7f4ea519037107a8f798df6 Mon Sep 17 00:00:00 2001
From: trcrsired 
Date: Fri, 26 Jan 2024 18:44:41 -0500
Subject: [PATCH] [libunwind][libcxx][libcxxabi] Fix Exception Handling build
 for wasm

The wasm unwind build appears to be dysfunctional, likely because the author 
has only supplied a customized LLVM build on request, rather than a fully 
functional patch.

This patch fixes the build

Apply formatting patch proposed by github bot

use "" to prevent CMAKE_SYSTEM_PROCESSOR not defined

[libunwind] logAPI functions should also be built

[libcxxabi] Fix function signatures for wasm

wasm does not define the function signatures correctly for cxxabi
Fix them

Fix formatting issues for libcxxabi's wasm eh change

Merge remote-tracking branch 'parent/main' into wasmlibunwindfix

remove unwanted changes in unwind-wasm.c

Make Unwind-wasm.c compile correctly without workaround in
CMakeLists.txt

using __wasm__ macro to guard against all wasm eh build

fix UnwindLevel.c's formatting issue

ISO C requires a translation unit to contain at least one declaration 
[-Werror,-Wempty-translation-unit]

compiler-rt does not define CMP_RESULT correct on wasm64
Fixed
---
 compiler-rt/lib/builtins/fp_compare_impl.inc |   2 +-
 libcxx/include/__exception/exception_ptr.h   |  18 +-
 libcxxabi/include/cxxabi.h   | 175 ++---
 libcxxabi/src/cxa_exception.cpp  | 707 ---
 libcxxabi/src/cxa_exception.h|   7 +-
 libunwind/include/__libunwind_config.h   |   1 +
 libunwind/include/libunwind.h|   2 +
 libunwind/src/Unwind-wasm.c  |  13 +-
 libunwind/src/UnwindLevel1.c |   3 +-
 libunwind/src/UnwindRegistersRestore.S   |   3 +-
 libunwind/src/UnwindRegistersSave.S  |   3 +
 libunwind/src/assembly.h |   2 +
 libunwind/src/cet_unwind.h   |   3 +
 libunwind/src/config.h   |  15 +-
 libunwind/src/libunwind.cpp  |   2 +
 libunwind/src/libunwind_ext.h|   2 +
 16 files changed, 426 insertions(+), 532 deletions(-)

diff --git a/compiler-rt/lib/builtins/fp_compare_impl.inc 
b/compiler-rt/lib/builtins/fp_compare_impl.inc
index a9a4f6fbf5dfe..83bdea46a45da 100644
--- a/compiler-rt/lib/builtins/fp_compare_impl.inc
+++ b/compiler-rt/lib/builtins/fp_compare_impl.inc
@@ -12,7 +12,7 @@
 // functions. We need to ensure that the return value is sign-extended in the
 // same way as GCC expects (since otherwise GCC-generated __builtin_isinf
 // returns true for finite 128-bit floating-point numbers).
-#ifdef __aarch64__
+#if defined(__aarch64__) || defined(__wasm__)
 // AArch64 GCC overrides libgcc_cmp_return to use int instead of long.
 typedef int CMP_RESULT;
 #elif __SIZEOF_POINTER__ == 8 && __SIZEOF_LONG__ == 4
diff --git a/libcxx/include/__exception/exception_ptr.h 
b/libcxx/include/__exception/exception_ptr.h
index c9027de9238cd..3324f832b7160 100644
--- a/libcxx/include/__exception/exception_ptr.h
+++ b/libcxx/include/__exception/exception_ptr.h
@@ -30,19 +30,21 @@
 
 namespace __cxxabiv1 {
 
+#if defined(__wasm__)
+typedef void* (*__libcpp_exception_destructor_func)(void*);
+#elif defined(_WIN32)
+typedef void(__thiscall* __libcpp_exception_destructor_func)(void*);
+#else
+typedef void (*__libcpp_exception_destructor_func)(void*);
+#endif
+
 extern "C" {
 _LIBCPP_OVERRIDABLE_FUNC_VIS void* __cxa_allocate_exception(size_t) throw();
 _LIBCPP_OVERRIDABLE_FUNC_VIS void __cxa_free_exception(void*) throw();
 
 struct __cxa_exception;
-_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception* __cxa_init_primary_exception(
-void*,
-std::type_info*,
-void(
-#if defined(_WIN32)
-__thiscall
-#endif
-*)(void*)) throw();
+_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception*
+__cxa_init_primary_exception(void*, std::type_info*, 
__libcpp_exception_destructor_func) throw();
 }
 
 } // namespace __cxxabiv1
diff --git a/libcxxabi/include/cxxabi.h b/libcxxabi/include/cxxabi.h
index d0701181751c5..4162fd7ec2ba7 100644
--- a/libcxxabi/include/cxxabi.h
+++ b/libcxxabi/include/cxxabi.h
@@ -20,58 +20,51 @@
 #include <__cxxabi_config.h>
 
 #define _LIBCPPABI_VERSION 15000
-#define _LIBCXXABI_NORETURN  __attribute__((noreturn))
+#define _LIBCXXABI_NORETURN __attribute__((noreturn))
 #define _LIBCXXABI_ALWAYS_COLD __attribute__((cold))
 
 #ifdef __cplusplus
 
 namespace std {
-#if defined(_WIN32)
+#  if defined(_WIN32)
 class _LIBCXXABI_TYPE_VIS type_info; // forward declaration
-#else
+#  else
 class type_info; // forward declaration
-#endif
-}
-
+#  endif
+} // namespace std
 
 // runtime routines use C calling conventions, but are in __cxxabiv1 namespace
 namespace __cxxabiv1 {
 
 struct __cxa_exception;
+#  if defined(__wasm__)
+typedef void* (*__libcxxabi_exception_destructor_func)(void*);
+#  else
+typedef

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-05-31 Thread via cfe-commits


https://github.com/trcrsired updated 
https://github.com/llvm/llvm-project/pull/79667

>From d73a87b47a549aeac7f4ea519037107a8f798df6 Mon Sep 17 00:00:00 2001
From: trcrsired 
Date: Fri, 26 Jan 2024 18:44:41 -0500
Subject: [PATCH] [libunwind][libcxx][libcxxabi] Fix Exception Handling build
 for wasm

The wasm unwind build appears to be dysfunctional, likely because the author 
has only supplied a customized LLVM build on request, rather than a fully 
functional patch.

This patch fixes the build

Apply formatting patch proposed by github bot

use "" to prevent CMAKE_SYSTEM_PROCESSOR not defined

[libunwind] logAPI functions should also be built

[libcxxabi] Fix function signatures for wasm

wasm does not define the function signatures correctly for cxxabi
Fix them

Fix formatting issues for libcxxabi's wasm eh change

Merge remote-tracking branch 'parent/main' into wasmlibunwindfix

remove unwanted changes in unwind-wasm.c

Make Unwind-wasm.c compile correctly without workaround in
CMakeLists.txt

using __wasm__ macro to guard against all wasm eh build

fix UnwindLevel.c's formatting issue

ISO C requires a translation unit to contain at least one declaration 
[-Werror,-Wempty-translation-unit]

compiler-rt does not define CMP_RESULT correct on wasm64
Fixed
---
 compiler-rt/lib/builtins/fp_compare_impl.inc |   2 +-
 libcxx/include/__exception/exception_ptr.h   |  18 +-
 libcxxabi/include/cxxabi.h   | 175 ++---
 libcxxabi/src/cxa_exception.cpp  | 707 ---
 libcxxabi/src/cxa_exception.h|   7 +-
 libunwind/include/__libunwind_config.h   |   1 +
 libunwind/include/libunwind.h|   2 +
 libunwind/src/Unwind-wasm.c  |  13 +-
 libunwind/src/UnwindLevel1.c |   3 +-
 libunwind/src/UnwindRegistersRestore.S   |   3 +-
 libunwind/src/UnwindRegistersSave.S  |   3 +
 libunwind/src/assembly.h |   2 +
 libunwind/src/cet_unwind.h   |   3 +
 libunwind/src/config.h   |  15 +-
 libunwind/src/libunwind.cpp  |   2 +
 libunwind/src/libunwind_ext.h|   2 +
 16 files changed, 426 insertions(+), 532 deletions(-)

diff --git a/compiler-rt/lib/builtins/fp_compare_impl.inc 
b/compiler-rt/lib/builtins/fp_compare_impl.inc
index a9a4f6fbf5dfe..83bdea46a45da 100644
--- a/compiler-rt/lib/builtins/fp_compare_impl.inc
+++ b/compiler-rt/lib/builtins/fp_compare_impl.inc
@@ -12,7 +12,7 @@
 // functions. We need to ensure that the return value is sign-extended in the
 // same way as GCC expects (since otherwise GCC-generated __builtin_isinf
 // returns true for finite 128-bit floating-point numbers).
-#ifdef __aarch64__
+#if defined(__aarch64__) || defined(__wasm__)
 // AArch64 GCC overrides libgcc_cmp_return to use int instead of long.
 typedef int CMP_RESULT;
 #elif __SIZEOF_POINTER__ == 8 && __SIZEOF_LONG__ == 4
diff --git a/libcxx/include/__exception/exception_ptr.h 
b/libcxx/include/__exception/exception_ptr.h
index c9027de9238cd..3324f832b7160 100644
--- a/libcxx/include/__exception/exception_ptr.h
+++ b/libcxx/include/__exception/exception_ptr.h
@@ -30,19 +30,21 @@
 
 namespace __cxxabiv1 {
 
+#if defined(__wasm__)
+typedef void* (*__libcpp_exception_destructor_func)(void*);
+#elif defined(_WIN32)
+typedef void(__thiscall* __libcpp_exception_destructor_func)(void*);
+#else
+typedef void (*__libcpp_exception_destructor_func)(void*);
+#endif
+
 extern "C" {
 _LIBCPP_OVERRIDABLE_FUNC_VIS void* __cxa_allocate_exception(size_t) throw();
 _LIBCPP_OVERRIDABLE_FUNC_VIS void __cxa_free_exception(void*) throw();
 
 struct __cxa_exception;
-_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception* __cxa_init_primary_exception(
-void*,
-std::type_info*,
-void(
-#if defined(_WIN32)
-__thiscall
-#endif
-*)(void*)) throw();
+_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception*
+__cxa_init_primary_exception(void*, std::type_info*, 
__libcpp_exception_destructor_func) throw();
 }
 
 } // namespace __cxxabiv1
diff --git a/libcxxabi/include/cxxabi.h b/libcxxabi/include/cxxabi.h
index d0701181751c5..4162fd7ec2ba7 100644
--- a/libcxxabi/include/cxxabi.h
+++ b/libcxxabi/include/cxxabi.h
@@ -20,58 +20,51 @@
 #include <__cxxabi_config.h>
 
 #define _LIBCPPABI_VERSION 15000
-#define _LIBCXXABI_NORETURN  __attribute__((noreturn))
+#define _LIBCXXABI_NORETURN __attribute__((noreturn))
 #define _LIBCXXABI_ALWAYS_COLD __attribute__((cold))
 
 #ifdef __cplusplus
 
 namespace std {
-#if defined(_WIN32)
+#  if defined(_WIN32)
 class _LIBCXXABI_TYPE_VIS type_info; // forward declaration
-#else
+#  else
 class type_info; // forward declaration
-#endif
-}
-
+#  endif
+} // namespace std
 
 // runtime routines use C calling conventions, but are in __cxxabiv1 namespace
 namespace __cxxabiv1 {
 
 struct __cxa_exception;
+#  if defined(__wasm__)
+typedef void* (*__libcxxabi_exception_destructor_func)(void*);
+#  else
+typedef

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-05-31 Thread via cfe-commits


https://github.com/trcrsired updated 
https://github.com/llvm/llvm-project/pull/79667

>From d73a87b47a549aeac7f4ea519037107a8f798df6 Mon Sep 17 00:00:00 2001
From: trcrsired 
Date: Fri, 26 Jan 2024 18:44:41 -0500
Subject: [PATCH] [libunwind][libcxx][libcxxabi] Fix Exception Handling build
 for wasm

The wasm unwind build appears to be dysfunctional, likely because the author 
has only supplied a customized LLVM build on request, rather than a fully 
functional patch.

This patch fixes the build

Apply formatting patch proposed by github bot

use "" to prevent CMAKE_SYSTEM_PROCESSOR not defined

[libunwind] logAPI functions should also be built

[libcxxabi] Fix function signatures for wasm

wasm does not define the function signatures correctly for cxxabi
Fix them

Fix formatting issues for libcxxabi's wasm eh change

Merge remote-tracking branch 'parent/main' into wasmlibunwindfix

remove unwanted changes in unwind-wasm.c

Make Unwind-wasm.c compile correctly without workaround in
CMakeLists.txt

using __wasm__ macro to guard against all wasm eh build

fix UnwindLevel.c's formatting issue

ISO C requires a translation unit to contain at least one declaration 
[-Werror,-Wempty-translation-unit]

compiler-rt does not define CMP_RESULT correct on wasm64
Fixed
---
 compiler-rt/lib/builtins/fp_compare_impl.inc |   2 +-
 libcxx/include/__exception/exception_ptr.h   |  18 +-
 libcxxabi/include/cxxabi.h   | 175 ++---
 libcxxabi/src/cxa_exception.cpp  | 707 ---
 libcxxabi/src/cxa_exception.h|   7 +-
 libunwind/include/__libunwind_config.h   |   1 +
 libunwind/include/libunwind.h|   2 +
 libunwind/src/Unwind-wasm.c  |  13 +-
 libunwind/src/UnwindLevel1.c |   3 +-
 libunwind/src/UnwindRegistersRestore.S   |   3 +-
 libunwind/src/UnwindRegistersSave.S  |   3 +
 libunwind/src/assembly.h |   2 +
 libunwind/src/cet_unwind.h   |   3 +
 libunwind/src/config.h   |  15 +-
 libunwind/src/libunwind.cpp  |   2 +
 libunwind/src/libunwind_ext.h|   2 +
 16 files changed, 426 insertions(+), 532 deletions(-)

diff --git a/compiler-rt/lib/builtins/fp_compare_impl.inc 
b/compiler-rt/lib/builtins/fp_compare_impl.inc
index a9a4f6fbf5dfe..83bdea46a45da 100644
--- a/compiler-rt/lib/builtins/fp_compare_impl.inc
+++ b/compiler-rt/lib/builtins/fp_compare_impl.inc
@@ -12,7 +12,7 @@
 // functions. We need to ensure that the return value is sign-extended in the
 // same way as GCC expects (since otherwise GCC-generated __builtin_isinf
 // returns true for finite 128-bit floating-point numbers).
-#ifdef __aarch64__
+#if defined(__aarch64__) || defined(__wasm__)
 // AArch64 GCC overrides libgcc_cmp_return to use int instead of long.
 typedef int CMP_RESULT;
 #elif __SIZEOF_POINTER__ == 8 && __SIZEOF_LONG__ == 4
diff --git a/libcxx/include/__exception/exception_ptr.h 
b/libcxx/include/__exception/exception_ptr.h
index c9027de9238cd..3324f832b7160 100644
--- a/libcxx/include/__exception/exception_ptr.h
+++ b/libcxx/include/__exception/exception_ptr.h
@@ -30,19 +30,21 @@
 
 namespace __cxxabiv1 {
 
+#if defined(__wasm__)
+typedef void* (*__libcpp_exception_destructor_func)(void*);
+#elif defined(_WIN32)
+typedef void(__thiscall* __libcpp_exception_destructor_func)(void*);
+#else
+typedef void (*__libcpp_exception_destructor_func)(void*);
+#endif
+
 extern "C" {
 _LIBCPP_OVERRIDABLE_FUNC_VIS void* __cxa_allocate_exception(size_t) throw();
 _LIBCPP_OVERRIDABLE_FUNC_VIS void __cxa_free_exception(void*) throw();
 
 struct __cxa_exception;
-_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception* __cxa_init_primary_exception(
-void*,
-std::type_info*,
-void(
-#if defined(_WIN32)
-__thiscall
-#endif
-*)(void*)) throw();
+_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception*
+__cxa_init_primary_exception(void*, std::type_info*, 
__libcpp_exception_destructor_func) throw();
 }
 
 } // namespace __cxxabiv1
diff --git a/libcxxabi/include/cxxabi.h b/libcxxabi/include/cxxabi.h
index d0701181751c5..4162fd7ec2ba7 100644
--- a/libcxxabi/include/cxxabi.h
+++ b/libcxxabi/include/cxxabi.h
@@ -20,58 +20,51 @@
 #include <__cxxabi_config.h>
 
 #define _LIBCPPABI_VERSION 15000
-#define _LIBCXXABI_NORETURN  __attribute__((noreturn))
+#define _LIBCXXABI_NORETURN __attribute__((noreturn))
 #define _LIBCXXABI_ALWAYS_COLD __attribute__((cold))
 
 #ifdef __cplusplus
 
 namespace std {
-#if defined(_WIN32)
+#  if defined(_WIN32)
 class _LIBCXXABI_TYPE_VIS type_info; // forward declaration
-#else
+#  else
 class type_info; // forward declaration
-#endif
-}
-
+#  endif
+} // namespace std
 
 // runtime routines use C calling conventions, but are in __cxxabiv1 namespace
 namespace __cxxabiv1 {
 
 struct __cxa_exception;
+#  if defined(__wasm__)
+typedef void* (*__libcxxabi_exception_destructor_func)(void*);
+#  else
+typedef

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-04-09 Thread via cfe-commits



@@ -12,6 +12,7 @@
 #ifndef __LIBUNWIND_EXT__
 #define __LIBUNWIND_EXT__
 
+#ifndef __wasm__

trcrsired wrote:

wasm has its own exception handling mechanism. i do not know why 
__USING_WASM_EXCEPTION__ is not defined, because the author of the code did not 
change the upstream code correctly i guess.

https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-04-09 Thread via cfe-commits


trcrsired wrote:

> @trcrsired Could you please describe what bits of libunwind WASM uses? It 
> seems to me almost all of the functionality is stripped out?
> 
> Could you also provide instructions to build and test libunwind under WASM so 
> we could add CI coverage? And so I can test this change myself.

ok. i will add CI

https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-04-09 Thread via cfe-commits



@@ -39,3 +40,5 @@ extern void *__libunwind_cet_get_registers(unw_cursor_t *);
 extern void *__libunwind_cet_get_jump_target(void);

trcrsired wrote:

there are no registers. so what would you expect for cet_get_jump_target? there 
is no setjmp/longjmp

https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-04-01 Thread via cfe-commits


EricWF wrote:

@trcrsired Could you please describe what bits of libunwind WASM uses? It seems 
to me almost all of the functionality is stripped out?

Could you also provide instructions to build and test libunwind under WASM so 
we could add CI coverage? And so I can test this change myself.

https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-04-01 Thread via cfe-commits



@@ -12,6 +12,7 @@
 #include 
 
 #include "config.h"
+#ifndef __wasm__

EricWF wrote:

The problem is that it makes the file a lot harder to read, each `#ifdef` block 
enclosed within becomes harder to read and reason about its scope. 

Though I see that _maybe_ WASM uses the log functions declared at the bottom? 
Do you know if it does?





https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-04-01 Thread via cfe-commits



@@ -39,3 +40,5 @@ extern void *__libunwind_cet_get_registers(unw_cursor_t *);
 extern void *__libunwind_cet_get_jump_target(void);

EricWF wrote:

What is the problem with exposing these two declarations, even if they're not 
defined?

https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-04-01 Thread via cfe-commits



@@ -12,7 +12,7 @@
 // functions. We need to ensure that the return value is sign-extended in the
 // same way as GCC expects (since otherwise GCC-generated __builtin_isinf
 // returns true for finite 128-bit floating-point numbers).
-#ifdef __aarch64__
+#if defined(__aarch64__) || defined(__wasm__)

EricWF wrote:

Could you update the comment above to mention why WASM needs this too?

https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-04-01 Thread via cfe-commits



@@ -431,6 +432,7 @@ int __unw_remove_find_dynamic_unwind_sections(
 }
 
 #endif // __APPLE__
+#endif

EricWF wrote:

At minimum this needs a comment matching it to the specific block it's closing.

https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-04-01 Thread via cfe-commits



@@ -15,6 +15,7 @@
 #ifndef UNWIND_ASSEMBLY_H
 #define UNWIND_ASSEMBLY_H
 
+#ifndef __wasm__

EricWF wrote:

Again, this is not OK.

First, this file just defines macros, so even under WASM it should be safe to 
include.
If you're hitting the `#error` case in the `#else`, then add an `#elif 
__wasm__`.

While his style of code may not cause issues for you, because you don't use it. 
It makes things more complicated for every change that actually uses these 
files.



https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-04-01 Thread via cfe-commits



@@ -10,6 +10,7 @@
 #ifndef LIBUNWIND_CET_UNWIND_H
 #define LIBUNWIND_CET_UNWIND_H
 
+#ifndef __wasm__

EricWF wrote:

Again, I don't think `#ifdef`-ing out entire headers is the best way to do 
this, or is even necessary. 

https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-04-01 Thread via cfe-commits



@@ -12,6 +12,7 @@
 #ifndef __LIBUNWIND_EXT__
 #define __LIBUNWIND_EXT__
 
+#ifndef __wasm__

EricWF wrote:

I would much rather you guard the usage of this header in each file.

That way it's clear to the reader in context that the include is unused under a 
certain configuration.
If the entire file contains no WASM code, then it probably shouldn't mention 
WASM at all.

Can you please explain what the `__WASM_EXCEPTIONS__` or 
`__USING_WASM_EXCEPTIONS__` was? 


https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-03-29 Thread via cfe-commits



@@ -12,6 +12,7 @@
 #include 
 
 #include "config.h"
+#ifndef __wasm__

trcrsired wrote:

> I feel like we could detect `__wasm__` or similar in CMake. And it feels like 
> the right tool, though maybe not the most trivial to implement.

Tbh i would always avoid wrapping around cmake, if platform macro works out.

https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-03-26 Thread via cfe-commits



@@ -12,6 +12,7 @@
 #include 
 
 #include "config.h"
+#ifndef __wasm__

EricWF wrote:

I feel like we could detect `__wasm__` or similar in CMake. And it feels like 
the right tool, though maybe not the most trivial to implement.

https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-03-26 Thread via cfe-commits


https://github.com/trcrsired edited 
https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-03-26 Thread via cfe-commits


https://github.com/trcrsired edited 
https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-03-26 Thread via cfe-commits



@@ -12,6 +12,7 @@
 #ifndef __LIBUNWIND_EXT__
 #define __LIBUNWIND_EXT__
 
+#ifndef __wasm__

trcrsired wrote:

The problem is that __WASM_EXCEPTIONS__ macro is not defined by clang, so using 
any other the header without __wasm__ will trigger ODR violation. Remote 
unwinding is not a thing for wasm, so i do not see what's wrong here

https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-03-26 Thread via cfe-commits



@@ -12,6 +12,7 @@
 #include 
 
 #include "config.h"
+#ifndef __wasm__

trcrsired wrote:

then it has to change cmake file, which is annoying for users.

https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-03-25 Thread via cfe-commits



@@ -12,6 +12,7 @@
 #include 
 
 #include "config.h"
+#ifndef __wasm__

EricWF wrote:

It seems like we simply don't want this file to build under WASM.

https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-03-25 Thread via cfe-commits



@@ -12,6 +12,7 @@
 #ifndef __LIBUNWIND_EXT__
 #define __LIBUNWIND_EXT__
 
+#ifndef __wasm__

EricWF wrote:

This feels like the wrong way to do this. We don't typically just if-def out a 
header for a particular platform.

Maybe track down the users of this header, and make them work under WASM?


https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-03-25 Thread via cfe-commits


https://github.com/EricWF requested changes to this pull request.

I think there are some pretty non-idiomatic workarounds for WASM here. I think 
in general this approach could use a more structured approach to handling where 
WASM differs.

Also, I know we have the mandatory code-formatter now, but a lot of this diff 
is just formatting noise. Could we find a way to extract that out?

https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-03-25 Thread via cfe-commits


https://github.com/EricWF edited https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-03-21 Thread via cfe-commits


https://github.com/trcrsired updated 
https://github.com/llvm/llvm-project/pull/79667

>From d73a87b47a549aeac7f4ea519037107a8f798df6 Mon Sep 17 00:00:00 2001
From: trcrsired 
Date: Fri, 26 Jan 2024 18:44:41 -0500
Subject: [PATCH] [libunwind][libcxx][libcxxabi] Fix Exception Handling build
 for wasm

The wasm unwind build appears to be dysfunctional, likely because the author 
has only supplied a customized LLVM build on request, rather than a fully 
functional patch.

This patch fixes the build

Apply formatting patch proposed by github bot

use "" to prevent CMAKE_SYSTEM_PROCESSOR not defined

[libunwind] logAPI functions should also be built

[libcxxabi] Fix function signatures for wasm

wasm does not define the function signatures correctly for cxxabi
Fix them

Fix formatting issues for libcxxabi's wasm eh change

Merge remote-tracking branch 'parent/main' into wasmlibunwindfix

remove unwanted changes in unwind-wasm.c

Make Unwind-wasm.c compile correctly without workaround in
CMakeLists.txt

using __wasm__ macro to guard against all wasm eh build

fix UnwindLevel.c's formatting issue

ISO C requires a translation unit to contain at least one declaration 
[-Werror,-Wempty-translation-unit]

compiler-rt does not define CMP_RESULT correct on wasm64
Fixed
---
 compiler-rt/lib/builtins/fp_compare_impl.inc |   2 +-
 libcxx/include/__exception/exception_ptr.h   |  18 +-
 libcxxabi/include/cxxabi.h   | 175 ++---
 libcxxabi/src/cxa_exception.cpp  | 707 ---
 libcxxabi/src/cxa_exception.h|   7 +-
 libunwind/include/__libunwind_config.h   |   1 +
 libunwind/include/libunwind.h|   2 +
 libunwind/src/Unwind-wasm.c  |  13 +-
 libunwind/src/UnwindLevel1.c |   3 +-
 libunwind/src/UnwindRegistersRestore.S   |   3 +-
 libunwind/src/UnwindRegistersSave.S  |   3 +
 libunwind/src/assembly.h |   2 +
 libunwind/src/cet_unwind.h   |   3 +
 libunwind/src/config.h   |  15 +-
 libunwind/src/libunwind.cpp  |   2 +
 libunwind/src/libunwind_ext.h|   2 +
 16 files changed, 426 insertions(+), 532 deletions(-)

diff --git a/compiler-rt/lib/builtins/fp_compare_impl.inc 
b/compiler-rt/lib/builtins/fp_compare_impl.inc
index a9a4f6fbf5dfe4..83bdea46a45da4 100644
--- a/compiler-rt/lib/builtins/fp_compare_impl.inc
+++ b/compiler-rt/lib/builtins/fp_compare_impl.inc
@@ -12,7 +12,7 @@
 // functions. We need to ensure that the return value is sign-extended in the
 // same way as GCC expects (since otherwise GCC-generated __builtin_isinf
 // returns true for finite 128-bit floating-point numbers).
-#ifdef __aarch64__
+#if defined(__aarch64__) || defined(__wasm__)
 // AArch64 GCC overrides libgcc_cmp_return to use int instead of long.
 typedef int CMP_RESULT;
 #elif __SIZEOF_POINTER__ == 8 && __SIZEOF_LONG__ == 4
diff --git a/libcxx/include/__exception/exception_ptr.h 
b/libcxx/include/__exception/exception_ptr.h
index c9027de9238cdd..3324f832b71602 100644
--- a/libcxx/include/__exception/exception_ptr.h
+++ b/libcxx/include/__exception/exception_ptr.h
@@ -30,19 +30,21 @@
 
 namespace __cxxabiv1 {
 
+#if defined(__wasm__)
+typedef void* (*__libcpp_exception_destructor_func)(void*);
+#elif defined(_WIN32)
+typedef void(__thiscall* __libcpp_exception_destructor_func)(void*);
+#else
+typedef void (*__libcpp_exception_destructor_func)(void*);
+#endif
+
 extern "C" {
 _LIBCPP_OVERRIDABLE_FUNC_VIS void* __cxa_allocate_exception(size_t) throw();
 _LIBCPP_OVERRIDABLE_FUNC_VIS void __cxa_free_exception(void*) throw();
 
 struct __cxa_exception;
-_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception* __cxa_init_primary_exception(
-void*,
-std::type_info*,
-void(
-#if defined(_WIN32)
-__thiscall
-#endif
-*)(void*)) throw();
+_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception*
+__cxa_init_primary_exception(void*, std::type_info*, 
__libcpp_exception_destructor_func) throw();
 }
 
 } // namespace __cxxabiv1
diff --git a/libcxxabi/include/cxxabi.h b/libcxxabi/include/cxxabi.h
index d0701181751c50..4162fd7ec2ba77 100644
--- a/libcxxabi/include/cxxabi.h
+++ b/libcxxabi/include/cxxabi.h
@@ -20,58 +20,51 @@
 #include <__cxxabi_config.h>
 
 #define _LIBCPPABI_VERSION 15000
-#define _LIBCXXABI_NORETURN  __attribute__((noreturn))
+#define _LIBCXXABI_NORETURN __attribute__((noreturn))
 #define _LIBCXXABI_ALWAYS_COLD __attribute__((cold))
 
 #ifdef __cplusplus
 
 namespace std {
-#if defined(_WIN32)
+#  if defined(_WIN32)
 class _LIBCXXABI_TYPE_VIS type_info; // forward declaration
-#else
+#  else
 class type_info; // forward declaration
-#endif
-}
-
+#  endif
+} // namespace std
 
 // runtime routines use C calling conventions, but are in __cxxabiv1 namespace
 namespace __cxxabiv1 {
 
 struct __cxa_exception;
+#  if defined(__wasm__)
+typedef void* (*__libcxxabi_exception_destructor_func)(void*);
+#  else
+typedef

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

2024-03-17 Thread via cfe-commits


https://github.com/trcrsired edited 
https://github.com/llvm/llvm-project/pull/79667
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[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

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