[PATCH v6 1/4] include: Define fast fail codes and the __fastfail() intrinsic.

[Jinoh Kang]

Signed-off-by: Jinoh Kang 
---

Notes:
    v5 -> v6:
    - Replace ULONG/ULONGLONG with ULONG_PTR for cross-architecture consistency.
    - Use machine-specific machine constraint ("c") for i386 and x86-64.
    - Merge i386 and x86-64 code.
    - "Prevent" taking address of __fastfail (just like MSVC exclusive intrinsic).
    - Remove erroneous preprocessor directive comments.
    - Don't repeat function declaration and epilogue.

include/winnt.h | 102 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)

diff --git a/include/winnt.h b/include/winnt.h
index c80efee077d..34406853469 100644
--- a/include/winnt.h
+++ b/include/winnt.h
@@ -915,6 +915,108 @@ NTSYSAPI PSLIST_ENTRY WINAPI RtlInterlockedPushEntrySList(PSLIST_HEADER, PSLIST_
 NTSYSAPI WORD         WINAPI RtlQueryDepthSList(PSLIST_HEADER);

+/* Fast fail (__fastfail) codes */
+
+#define FAST_FAIL_LEGACY_GS_VIOLATION               0
+#define FAST_FAIL_VTGUARD_CHECK_FAILURE             1
+#define FAST_FAIL_STACK_COOKIE_CHECK_FAILURE        2
+#define FAST_FAIL_CORRUPT_LIST_ENTRY                3
+#define FAST_FAIL_INCORRECT_STACK                   4
+#define FAST_FAIL_INVALID_ARG                       5
+#define FAST_FAIL_GS_COOKIE_INIT                    6
+#define FAST_FAIL_FATAL_APP_EXIT                    7
+#define FAST_FAIL_RANGE_CHECK_FAILURE               8
+#define FAST_FAIL_UNSAFE_REGISTRY_ACCESS            9
+#define FAST_FAIL_GUARD_ICALL_CHECK_FAILURE         10
+#define FAST_FAIL_GUARD_WRITE_CHECK_FAILURE         11
+#define FAST_FAIL_INVALID_FIBER_SWITCH              12
+#define FAST_FAIL_INVALID_SET_OF_CONTEXT            13
+#define FAST_FAIL_INVALID_REFERENCE_COUNT           14
+#define FAST_FAIL_INVALID_JUMP_BUFFER               18
+#define FAST_FAIL_MRDATA_MODIFIED                   19
+#define FAST_FAIL_CERTIFICATION_FAILURE             20
+#define FAST_FAIL_INVALID_EXCEPTION_CHAIN           21
+#define FAST_FAIL_CRYPTO_LIBRARY                    22
+#define FAST_FAIL_INVALID_CALL_IN_DLL_CALLOUT       23
+#define FAST_FAIL_INVALID_IMAGE_BASE                24
+#define FAST_FAIL_DLOAD_PROTECTION_FAILURE          25
+#define FAST_FAIL_UNSAFE_EXTENSION_CALL             26
+#define FAST_FAIL_DEPRECATED_SERVICE_INVOKED        27
+#define FAST_FAIL_INVALID_BUFFER_ACCESS             28
+#define FAST_FAIL_INVALID_BALANCED_TREE             29
+#define FAST_FAIL_INVALID_NEXT_THREAD               30
+#define FAST_FAIL_GUARD_ICALL_CHECK_SUPPRESSED      31
+#define FAST_FAIL_APCS_DISABLED                     32
+#define FAST_FAIL_INVALID_IDLE_STATE                33
+#define FAST_FAIL_MRDATA_PROTECTION_FAILURE         34
+#define FAST_FAIL_UNEXPECTED_HEAP_EXCEPTION         35
+#define FAST_FAIL_INVALID_LOCK_STATE                36
+#define FAST_FAIL_GUARD_JUMPTABLE                   37
+#define FAST_FAIL_INVALID_LONGJUMP_TARGET           38
+#define FAST_FAIL_INVALID_DISPATCH_CONTEXT          39
+#define FAST_FAIL_INVALID_THREAD                    40
+#define FAST_FAIL_INVALID_SYSCALL_NUMBER            41
+#define FAST_FAIL_INVALID_FILE_OPERATION            42
+#define FAST_FAIL_LPAC_ACCESS_DENIED                43
+#define FAST_FAIL_GUARD_SS_FAILURE                  44
+#define FAST_FAIL_LOADER_CONTINUITY_FAILURE         45
+#define FAST_FAIL_GUARD_EXPORT_SUPPRESSION_FAILURE  46
+#define FAST_FAIL_INVALID_CONTROL_STACK             47
+#define FAST_FAIL_SET_CONTEXT_DENIED                48
+#define FAST_FAIL_INVALID_IAT                       49
+#define FAST_FAIL_HEAP_METADATA_CORRUPTION          50
+#define FAST_FAIL_PAYLOAD_RESTRICTION_VIOLATION     51
+#define FAST_FAIL_LOW_LABEL_ACCESS_DENIED           52
+#define FAST_FAIL_ENCLAVE_CALL_FAILURE              53
+#define FAST_FAIL_UNHANDLED_LSS_EXCEPTON            54
+#define FAST_FAIL_ADMINLESS_ACCESS_DENIED           55
+#define FAST_FAIL_UNEXPECTED_CALL                   56
+#define FAST_FAIL_CONTROL_INVALID_RETURN_ADDRESS    57
+#define FAST_FAIL_UNEXPECTED_HOST_BEHAVIOR          58
+#define FAST_FAIL_FLAGS_CORRUPTION                  59
+#define FAST_FAIL_VEH_CORRUPTION                    60
+#define FAST_FAIL_ETW_CORRUPTION                    61
+#define FAST_FAIL_RIO_ABORT                         62
+#define FAST_FAIL_INVALID_PFN                       63
+#define FAST_FAIL_GUARD_ICALL_CHECK_FAILURE_XFG     64
+#define FAST_FAIL_CAST_GUARD                        65
+#define FAST_FAIL_HOST_VISIBILITY_CHANGE            66
+#define FAST_FAIL_KERNEL_CET_SHADOW_STACK_ASSIST    67
+#define FAST_FAIL_PATCH_CALLBACK_FAILED             68
+#define FAST_FAIL_NTDLL_PATCH_FAILED                69
+#define FAST_FAIL_INVALID_FLS_DATA                  70
+#define FAST_FAIL_INVALID_FAST_FAIL_CODE            0xFFFFFFFF
+
+#if defined(__GNUC__)
+/* __fastfail is intentionally not declared static, so that taking the address
+ * of this function will fail on link due to unresolved symbol (just like MSVC).
+ */
+#ifdef __GNUC_GNU_INLINE__
+extern  /* don't emit definition of this inline function */
+#endif
+FORCEINLINE DECLSPEC_NORETURN void __fastfail(unsigned int code)
+{
+#if defined(__x86_64__) || defined(__i386__)
+    __asm__ __volatile__( "int $0x29" :: "c" ((ULONG_PTR)code) : "memory" );
+#elif defined(__aarch64__)
+    register ULONG_PTR val __asm__("x0") = code;
+    __asm__ __volatile__( "brk #0xf003" :: "r" (val) : "memory" );
+#elif defined(__arm__)
+    register ULONG_PTR val __asm__("r0") = code;
+    __asm__ __volatile__( "udf #0xfb" :: "r" (val) : "memory" );
+#else
+#error __fastfail not defined for this architecture
+#endif
+#if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5))
+    __builtin_unreachable();
+#endif
+}
+#elif defined(_MSC_VER) && (_MSC_VER >= 1610)
+DECLSPEC_NORETURN void __fastfail(unsigned int);
+#pragma intrinsic(__fastfail)
+#endif
+
+
 /* Heap flags */

#define HEAP_NO_SERIALIZE               0x00000001