Pass compiler/linker flags to CMake for -native-hybrid (#386)

morello-llvm-native on CheriBSD/Morello requires -mabi=aapcs in CFLAGS.
Otherwise, it would be compiled with -mabi=purecap that cc uses by
default on CheriBSD with purecap world.

pycheribuild/config/target_info.py

@@ -869,6 +869,9 @@ def is_native(self) -> bool:
         assert self.target_info_cls is not None
         return self.target_info_cls.is_native()
 
+    def is_native_hybrid(self) -> bool:
+        return self.is_native() and self._is_cheri_hybrid
+
     def _check_arch(self, arch: CPUArchitecture, include_purecap: "Optional[bool]") -> bool:
         if self.cpu_architecture is not arch:
             return False

pycheribuild/projects/cmake_project.py

@@ -198,7 +198,7 @@ def setup_late(self):
             CMAKE_CXX_COMPILER=self.CXX,
             CMAKE_ASM_COMPILER=self.CC,  # Compile assembly files with the default compiler
         )
-        if not self.compiling_for_host():
+        if not self.compiling_for_host() or self.compiling_for_host_hybrid():
             # Add compiler/linker flags (for cross-compilation these are defined in the toolchain file).
             # Note: All of these should be commandlines not CMake lists.
             self.add_cmake_options(

pycheribuild/projects/simple_project.py

@@ -664,6 +664,9 @@ def compiling_for_cheri_hybrid(self, valid_cpu_archs: "Optional[list[CPUArchitec
     def compiling_for_host(self) -> bool:
         return self.crosscompile_target.is_native()
 
+    def compiling_for_host_hybrid(self) -> bool:
+        return self.crosscompile_target.is_native_hybrid()
+
     def compiling_for_riscv(self, include_purecap: bool) -> bool:
         return self.crosscompile_target.is_riscv(include_purecap=include_purecap)