Add x86_64-openbsd to LLVM supported list

compiler/Makefile.fpc

@@ -386,7 +386,7 @@ ifeq ($(findstring $(PPC_TARGET),x86_64 aarch64 arm),)
 $(error The $(PPC_TARGET) architecture is not (yet) supported by the FPC/LLVM code generator)
 endif
 
-ifeq ($(findstring $(OS_TARGET),darwin iphonesim linux),)
+ifeq ($(findstring $(OS_TARGET),darwin iphonesim linux openbsd),)
 $(error The $(OS_TARGET) target OS is not (yet) supported by the FPC/LLVM code generator)
 endif
 

compiler/llvm/agllvm.pas

@@ -1789,7 +1789,7 @@ implementation
           idtxt  : 'CLANG-LLVM';
           asmbin : 'clang';
           asmcmd: '-x ir $OPT -target $TRIPLET -c -o $OBJ $ASM $EXTRAOPT';
-          supported_targets : [system_x86_64_linux,system_aarch64_linux,system_arm_linux];
+          supported_targets : [system_x86_64_linux,system_aarch64_linux,system_arm_linux,system_x86_64_openbsd];
           flags : [af_smartlink_sections,af_llvm];
           labelprefix : '.L';
           labelmaxlen : -1;

compiler/systems/i_bsd.pas

@@ -466,7 +466,10 @@ unit i_bsd;
             flags        : [tf_needs_symbol_size,tf_needs_dwarf_cfi,tf_library_needs_pic,tf_needs_symbol_type,
                             tf_files_case_sensitive, tf_under_development,
                             tf_dwarf_only_local_labels, tf_pic_default,
-                            { tf_pic_uses_got,}tf_smartlink_sections,tf_has_winlike_resources,tf_supports_hidden_symbols];
+{$ifdef llvm}
+                            tf_use_psabieh,
+{$endif llvm}
+                { tf_pic_uses_got,}tf_smartlink_sections,tf_has_winlike_resources,tf_supports_hidden_symbols];
             cpu          : cpu_x86_64;
             unit_env     : 'BSDUNITS';
             extradefines : 'UNIX;HASUNIX;BSD';