File riscv64-support.patch of Package libEMF

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File riscv64-support.patch of Package libEMF

From: Bo YU <tsu.yubo@gmail.com>
Date: Mon, 27 Jun 2022 20:11:46 +0800
Subject: add-support-riscv64

add support for riscv64 arch

Original reference e2k code for supporting riscv64 arch
---
 include/libEMF/wine/winnt.h | 75 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)

diff --git a/include/libEMF/wine/winnt.h b/include/libEMF/wine/winnt.h
index 39e2f90..1609f38 100644
--- a/include/libEMF/wine/winnt.h
+++ b/include/libEMF/wine/winnt.h
@@ -69,6 +69,10 @@
 # define  WORDS_BIGENDIAN
 # define  BITFIELDS_BIGENDIAN
 # undef  ALLOW_UNALIGNED_ACCESS
+#elif defined(__riscv) && defined(__riscv_xlen) && __riscv_xlen == 64
+# undef  WORDS_BIGENDIAN
+# undef  BITFIELDS_BIGENDIAN
+# undef  ALLOW_UNALIGNED_ACCESS
 #elif !defined(RC_INVOKED)
 # error Unknown CPU architecture!
 #endif
@@ -1582,6 +1586,77 @@ typedef struct _CONTEXT {
 
 #endif /* __e2k__ */
 
+#ifdef __riscv && __riscv_xlen==64
+/*
+ * FIXME:
+ *
+ * There is not yet an official CONTEXT structure defined for the
+ * riscv64 architecture (64-bit LE), so I just made one up.
+ *
+ */
+
+#define CONTEXT_RISCV64             0x4000000
+#define CONTEXT_CONTROL         (CONTEXT_RISCV64 | 0x00000001)
+#define CONTEXT_INTEGER         (CONTEXT_RISCV64 | 0x00000002)
+#define CONTEXT_FLOATING_POINT  (CONTEXT_RISCV64 | 0x00000004)
+#define CONTEXT_DEBUG_REGISTERS (CONTEXT_RISCV64 | 0x00000008)
+
+#define CONTEXT_FULL (CONTEXT_CONTROL | CONTEXT_INTEGER)
+
+#define EXCEPTION_READ_FAULT    0
+#define EXCEPTION_WRITE_FAULT   1
+#define EXCEPTION_EXECUTE_FAULT 8
+
+typedef struct _CONTEXT {
+    ULONG ContextFlags;
+
+    /* This section is specified/returned if the ContextFlags word contains
+       the flag CONTEXT_INTEGER. */
+    ULONGLONG X0;
+    ULONGLONG X1;
+    ULONGLONG X2;
+    ULONGLONG X3;
+    ULONGLONG X4;
+    ULONGLONG X5;
+    ULONGLONG X6;
+    ULONGLONG X7;
+    ULONGLONG X8;
+    ULONGLONG X9;
+    ULONGLONG X10;
+    ULONGLONG X11;
+    ULONGLONG X12;
+    ULONGLONG X13;
+    ULONGLONG X14;
+    ULONGLONG X15;
+    ULONGLONG X16;
+    ULONGLONG X17;
+    ULONGLONG X18;
+    ULONGLONG X19;
+    ULONGLONG X20;
+    ULONGLONG X21;
+    ULONGLONG X22;
+    ULONGLONG X23;
+    ULONGLONG X24;
+    ULONGLONG X25;
+    ULONGLONG X26;
+    ULONGLONG X27;
+    ULONGLONG X28;
+    ULONGLONG X29;
+    ULONGLONG X30;
+    ULONGLONG X31;
+
+    /* These are selected by CONTEXT_CONTROL */
+    ULONGLONG Sp;
+    ULONGLONG Pc;
+    ULONGLONG PState;
+
+    /* These are selected by CONTEXT_FLOATING_POINT */
+    /* FIXME */
+} CONTEXT;
+
+#endif /* __riscv64__ */
+
+
 #if !defined(CONTEXT_FULL) && !defined(RC_INVOKED)
 #error You need to define a CONTEXT for your CPU
 #endif

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File riscv64-support.patch of Package libEMF

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