libcxxabi: fix compilation warnings

Signed-off-by: yinshengkai <[email protected]>

Author: Gary-Hobson

libs/libxx/0001-libcxxabi-Fix-build-warnings-generated-by-CMake-comp.patch

@@ -0,0 +1,41 @@
+From df7ad61eb3ce52ebf864f30ec3ad1a6ccea74730 Mon Sep 17 00:00:00 2001
+From: cuiziwei <[email protected]>
+Date: Thu, 23 May 2024 11:11:30 +0800
+libcxxabi:Fix build warnings generated by CMake
+ compilation.
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+VELAPLATFO-32782
+
+nuttx/libs/libxx/libcxxabi/src/cxa_personality.cpp: In function ‘void __cxxabiv1::__cxa_call_unexpected(void*)’:
+nuttx/libs/libxx/libcxxabi/src/cxa_personality.cpp:1250:46: warning: ‘ttypeIndex’ may be used uninitialized [-Wmaybe-uninitialized]
+ 1250 |                 if (!exception_spec_can_catch(ttypeIndex, classInfo, ttypeEncoding,
+      |                      ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ 1251 |                                               excpType, adjustedPtr,
+      |                                               ~~~~~~~~~~~~~~~~~~~~~~
+ 1252 |                                               unwind_exception, base))
+
+Change-Id: Ic114508ecdad7cc84e7ad997a9379e50b2efd2a5
+Signed-off-by: cuiziwei <[email protected]>
+---
+ src/cxa_personality.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git libcxxabi/src/cxa_personality.cpp libcxxabi/src/cxa_personality.cpp
+index b28c58d..5b58037 100644
+--- libcxxabi/src/cxa_personality.cpp
++++ libcxxabi/src/cxa_personality.cpp
+@@ -1174,7 +1174,7 @@ __cxa_call_unexpected(void* arg)
+     std::unexpected_handler u_handler;
+     std::terminate_handler t_handler;
+     __cxa_exception* old_exception_header = 0;
+-    int64_t ttypeIndex;
++    int64_t ttypeIndex = 0;
+     const uint8_t* lsda;
+     uintptr_t base = 0;
+ 
+-- 
+2.34.1
+

libs/libxx/0002-libcxxabi-fix-compilation-errors.patch

@@ -0,0 +1,33 @@
+From b84bcf890c949d248ade97a5e1fbcf2a8e3efcd7 Mon Sep 17 00:00:00 2001
+From: yinshengkai <[email protected]>
+Date: Fri, 5 Jul 2024 16:59:49 +0800
+libcxxabi: fix compilation errors
+
+error: invalid conversion from 'int' to '_Unwind_State' [-fpermissive]
+ 1073 |     state &= ~_US_FORCE_UNWIND;
+      |     ~~~~~~^~~~~~~~~~~~~~~~~~~~
+      |           |
+      |           int
+
+Change-Id: I47827d58438f248e2171d20a44cc29ed8b259fc5
+Signed-off-by: yinshengkai <[email protected]>
+---
+ src/cxa_personality.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git libcxxabi/src/cxa_personality.cpp libcxxabi/src/cxa_personality.cpp
+index 5b58037..3e1fd83 100644
+--- libcxxabi/src/cxa_personality.cpp
++++ libcxxabi/src/cxa_personality.cpp
+@@ -1070,7 +1070,7 @@ __gxx_personality_v0(_Unwind_State state,
+ 
+     // Check the undocumented force unwinding behavior
+     bool is_force_unwinding = state & _US_FORCE_UNWIND;
+-    state &= ~_US_FORCE_UNWIND;
++    state = (_Unwind_State)(state & ~_US_FORCE_UNWIND);
+ 
+     scan_results results;
+     switch (state) {
+-- 
+2.34.1
+

libs/libxx/libcxxabi.defs

@@ -28,6 +28,8 @@ libcxxabi-$(LIBCXXABI_VERSION).src.tar.xz:
 libcxxabi: libcxxabi-$(LIBCXXABI_VERSION).src.tar.xz
 	$(Q) tar -xf libcxxabi-$(LIBCXXABI_VERSION).src.tar.xz
 	$(Q) mv libcxxabi-$(LIBCXXABI_VERSION).src libcxxabi
+	$(Q) patch -p0 < 0001-libcxxabi-Fix-build-warnings-generated-by-CMake-comp.patch
+	$(Q) patch -p0 < 0002-libcxxabi-fix-compilation-errors.patch
 	$(Q) touch $@
 endif