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Fix build with llvm-libunwind, and also fix for non-llvm libunwind
when using clang+bfd given clang doesn't have _Unwind_Find_FDE in
its rtlib and expects it from llvm-libunwind.
The _CONFIG_H_ check is for <llvm-libunwind-15 (adds _VERSION).
--- a/dlls/ntdll/unix/signal_x86_64.c
+++ b/dlls/ntdll/unix/signal_x86_64.c
@@ -646,7 +646,9 @@
unsigned int cie_offset;
};
+#if defined(_LIBUNWIND_VERSION) || defined(____LIBUNWIND_CONFIG_H__) || !defined(__clang__)
extern const struct dwarf_fde *_Unwind_Find_FDE (void *, struct dwarf_eh_bases *);
+#endif
static unsigned char dwarf_get_u1( const unsigned char **p )
{
@@ -1368,7 +1370,7 @@
unw_proc_info_t info;
int rc;
-#ifdef __APPLE__
+#if defined(__APPLE__) || defined(_LIBUNWIND_VERSION) || defined(____LIBUNWIND_CONFIG_H__)
rc = unw_getcontext( &unw_context );
if (rc == UNW_ESUCCESS)
rc = unw_init_local( &cursor, &unw_context );
@@ -1491,11 +1493,13 @@
NTSTATUS CDECL unwind_builtin_dll( ULONG type, DISPATCHER_CONTEXT *dispatch, CONTEXT *context )
{
struct dwarf_eh_bases bases;
+#if defined(_LIBUNWIND_VERSION) || defined(____LIBUNWIND_CONFIG_H__) || !defined(__clang__)
const struct dwarf_fde *fde = _Unwind_Find_FDE( (void *)(context->Rip - 1), &bases );
if (fde)
return dwarf_virtual_unwind( context->Rip, &dispatch->EstablisherFrame, context, fde,
&bases, &dispatch->LanguageHandler, &dispatch->HandlerData );
+#endif
#ifdef HAVE_LIBUNWIND
return libunwind_virtual_unwind( context->Rip, &dispatch->EstablisherFrame, context,
&dispatch->LanguageHandler, &dispatch->HandlerData );
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