Signed-off-by: Martin Storsjö <[email protected]>
---
mingw-w64-headers/crt/_mingw.h.in | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/mingw-w64-headers/crt/_mingw.h.in
b/mingw-w64-headers/crt/_mingw.h.in
index 0ef7ae6ea..087fce88d 100644
--- a/mingw-w64-headers/crt/_mingw.h.in
+++ b/mingw-w64-headers/crt/_mingw.h.in
@@ -577,6 +577,7 @@ extern "C" {
#ifdef __MINGW_INTRIN_INLINE
+
#ifdef __has_builtin
#define __MINGW_DEBUGBREAK_IMPL !__has_builtin(__debugbreak)
#else
@@ -596,8 +597,32 @@ __MINGW_INTRIN_INLINE void __cdecl __debugbreak(void)
__asm__ __volatile__("unimplemented");
#endif
}
+#endif /* __MINGW_DEBUGBREAK_IMPL == 1 */
+
+#ifdef __has_builtin
+#define __MINGW_FASTFAIL_IMPL !__has_builtin(__fastfail)
+#else
+#define __MINGW_FASTFAIL_IMPL 1
#endif
+#if __MINGW_FASTFAIL_IMPL == 1
+void __cdecl __MINGW_ATTRIB_NORETURN __fastfail(unsigned int code);
+__MINGW_INTRIN_INLINE void __cdecl __MINGW_ATTRIB_NORETURN __fastfail(unsigned
int code)
+{
+#if defined(__i386__) || defined(__x86_64__)
+ __asm__ __volatile__("int {$}0x29"::"c"(code));
+#elif defined(__arm__)
+ register unsigned int r0 __asm__("r0") = code;
+ __asm__ __volatile__("udf #0xfb"::"r"(r0));
+#elif defined(__aarch64__)
+ register unsigned int w0 __asm__("w0") = code;
+ __asm__ __volatile__("brk #0xf003"::"r"(w0));
+#else
+ __asm__ __volatile__("unimplemented");
#endif
+}
+#endif /* __MINGW_FASTFAIL_IMPL == 1 */
+
+#endif /* defined(__MINGW_INTRIN_INLINE) */
/* mingw-w64 specific functions: */
const char *__mingw_get_crt_info (void);
--
2.25.1
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