msvcrt: Implemented setjmp for x86_64.

dlls/msvcrt/except.c

@@ -410,7 +410,47 @@ void __stdcall _seh_longjmp_unwind(struct MSVCRT___JUMP_BUFFER *jmp)
 {
     msvcrt_local_unwind2( (MSVCRT_EXCEPTION_FRAME *)jmp->Registration, jmp->TryLevel, (void *)jmp->Ebp );
 }
-#endif /* i386 */
+
+#elif defined(__x86_64__)
+
+/*******************************************************************
+ *		_setjmp (MSVCRT.@)
+ */
+__ASM_GLOBAL_FUNC( MSVCRT__setjmp,
+                   "xorq %rdx,%rdx\n\t"  /* frame */
+                   "jmp " __ASM_NAME("MSVCRT__setjmpex") );
+
+/*******************************************************************
+ *		_setjmpex (MSVCRT.@)
+ */
+__ASM_GLOBAL_FUNC( MSVCRT__setjmpex,
+                   "movq %rdx,(%rcx)\n\t"          /* jmp_buf->Frame */
+                   "movq %rbx,0x8(%rcx)\n\t"       /* jmp_buf->Rbx */
+                   "leaq 0x8(%rsp),%rax\n\t"
+                   "movq %rax,0x10(%rcx)\n\t"      /* jmp_buf->Rsp */
+                   "movq %rbp,0x18(%rcx)\n\t"      /* jmp_buf->Rbp */
+                   "movq %rsi,0x20(%rcx)\n\t"      /* jmp_buf->Rsi */
+                   "movq %rdi,0x28(%rcx)\n\t"      /* jmp_buf->Rdi */
+                   "movq %r12,0x30(%rcx)\n\t"      /* jmp_buf->R12 */
+                   "movq %r13,0x38(%rcx)\n\t"      /* jmp_buf->R13 */
+                   "movq %r14,0x40(%rcx)\n\t"      /* jmp_buf->R14 */
+                   "movq %r15,0x48(%rcx)\n\t"      /* jmp_buf->R15 */
+                   "movq (%rsp),%rax\n\t"
+                   "movq %rax,0x50(%rcx)\n\t"      /* jmp_buf->Rip */
+                   "movdqa %xmm6,0x60(%rcx)\n\t"   /* jmp_buf->Xmm6 */
+                   "movdqa %xmm7,0x70(%rcx)\n\t"   /* jmp_buf->Xmm7 */
+                   "movdqa %xmm8,0x80(%rcx)\n\t"   /* jmp_buf->Xmm8 */
+                   "movdqa %xmm9,0x90(%rcx)\n\t"   /* jmp_buf->Xmm9 */
+                   "movdqa %xmm10,0xa0(%rcx)\n\t"  /* jmp_buf->Xmm10 */
+                   "movdqa %xmm11,0xb0(%rcx)\n\t"  /* jmp_buf->Xmm11 */
+                   "movdqa %xmm12,0xc0(%rcx)\n\t"  /* jmp_buf->Xmm12 */
+                   "movdqa %xmm13,0xd0(%rcx)\n\t"  /* jmp_buf->Xmm13 */
+                   "movdqa %xmm14,0xe0(%rcx)\n\t"  /* jmp_buf->Xmm14 */
+                   "movdqa %xmm15,0xf0(%rcx)\n\t"  /* jmp_buf->Xmm15 */
+                   "xorq %rax,%rax\n\t"
+                   "retq" );
+
+#endif /* __x86_64__ */
 
 static MSVCRT___sighandler_t sighandlers[MSVCRT_NSIG] = { MSVCRT_SIG_DFL };
 

dlls/msvcrt/msvcrt.spec

@@ -815,8 +815,9 @@
 # stub _set_output_format
 @ cdecl _set_sbh_threshold(long)
 @ cdecl _seterrormode(long)
-@ cdecl -i386 -norelay _setjmp(ptr) MSVCRT__setjmp
-@ cdecl -i386 -norelay _setjmp3(ptr long) MSVCRT__setjmp3
+@ cdecl -arch=i386,x86_64 -norelay _setjmp(ptr) MSVCRT__setjmp
+@ cdecl -arch=i386 -norelay _setjmp3(ptr long) MSVCRT__setjmp3
+@ cdecl -arch=x86_64 -norelay _setjmpex(ptr ptr) MSVCRT__setjmpex
 @ cdecl _setmaxstdio(long)
 @ cdecl _setmbcp(long)
 @ cdecl _setmode(long long)
@@ -1299,6 +1300,7 @@
 @ varargs scanf(str) MSVCRT_scanf
 # stub scanf_s
 @ cdecl setbuf(ptr ptr) MSVCRT_setbuf
+@ cdecl -arch=x86_64 -norelay -private setjmp(ptr) MSVCRT__setjmp
 @ cdecl setlocale(long str) MSVCRT_setlocale
 @ cdecl setvbuf(ptr str long long) MSVCRT_setvbuf
 @ cdecl signal(long long) MSVCRT_signal

include/msvcrt/setjmp.h

@@ -42,12 +42,53 @@ typedef struct __JUMP_BUFFER
     unsigned long UnwindData[6];
 } _JUMP_BUFFER;
 
-#endif /* __i386__ */
+#define _JBLEN 16
+#define _JBTYPE int
 
-#define _JBLEN                     16
-#define _JBTYPE                    int
-typedef _JBTYPE                    jmp_buf[_JBLEN];
+#elif defined(__x86_64__)
 
+typedef struct _SETJMP_FLOAT128
+{
+    unsigned __int64 DECLSPEC_ALIGN(16) Part[2];
+} SETJMP_FLOAT128;
+
+typedef struct _JUMP_BUFFER
+{
+    unsigned __int64 Frame;
+    unsigned __int64 Rbx;
+    unsigned __int64 Rsp;
+    unsigned __int64 Rbp;
+    unsigned __int64 Rsi;
+    unsigned __int64 Rdi;
+    unsigned __int64 R12;
+    unsigned __int64 R13;
+    unsigned __int64 R14;
+    unsigned __int64 R15;
+    unsigned __int64 Rip;
+    unsigned __int64 Spare;
+    SETJMP_FLOAT128  Xmm6;
+    SETJMP_FLOAT128  Xmm7;
+    SETJMP_FLOAT128  Xmm8;
+    SETJMP_FLOAT128  Xmm9;
+    SETJMP_FLOAT128  Xmm10;
+    SETJMP_FLOAT128  Xmm11;
+    SETJMP_FLOAT128  Xmm12;
+    SETJMP_FLOAT128  Xmm13;
+    SETJMP_FLOAT128  Xmm14;
+    SETJMP_FLOAT128  Xmm15;
+} _JUMP_BUFFER;
+
+#define _JBLEN  16
+typedef SETJMP_FLOAT128 _JBTYPE;
+
+#else
+
+#define _JBLEN 1
+#define _JBTYPE int
+
+#endif
+
+typedef _JBTYPE jmp_buf[_JBLEN];
 
 #ifdef __cplusplus
 extern "C" {