68 lines
2.0 KiB
Diff
68 lines
2.0 KiB
Diff
Index: qemu/thunk.h
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===================================================================
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--- qemu.orig/thunk.h
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+++ qemu/thunk.h
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@@ -38,6 +38,7 @@ typedef enum argtype {
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TYPE_PTR,
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TYPE_ARRAY,
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TYPE_STRUCT,
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+ TYPE_INTBITFIELD,
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} argtype;
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#define MK_PTR(type) TYPE_PTR, type
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@@ -87,6 +88,7 @@ static inline int thunk_type_size(const
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case TYPE_SHORT:
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return 2;
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case TYPE_INT:
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+ case TYPE_INTBITFIELD:
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return 4;
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case TYPE_LONGLONG:
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case TYPE_ULONGLONG:
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@@ -124,6 +126,7 @@ static inline int thunk_type_align(const
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case TYPE_SHORT:
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return 2;
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case TYPE_INT:
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+ case TYPE_INTBITFIELD:
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return 4;
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case TYPE_LONGLONG:
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case TYPE_ULONGLONG:
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Index: qemu/thunk.c
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===================================================================
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--- qemu.orig/thunk.c
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+++ qemu/thunk.c
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@@ -40,6 +40,7 @@ static inline const argtype *thunk_type_
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case TYPE_CHAR:
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case TYPE_SHORT:
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case TYPE_INT:
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+ case TYPE_INTBITFIELD:
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case TYPE_LONGLONG:
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case TYPE_ULONGLONG:
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case TYPE_LONG:
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@@ -132,6 +133,26 @@ const argtype *thunk_convert(void *dst,
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case TYPE_INT:
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*(uint32_t *)dst = tswap32(*(uint32_t *)src);
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break;
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+ case TYPE_INTBITFIELD:
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+#if defined(TARGET_I386) && defined(__powerpc__)
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+ /* powerpc uses the MSB, whereas i386 uses the LSB
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+ * to store the first bit in a field */
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+ {
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+ unsigned char byte = *(uint8_t *)src;
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+ *(uint8_t *)dst = ((byte >> 7) & 1)
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+ | ((byte >> 5) & 2)
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+ | ((byte >> 3) & 4)
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+ | ((byte >> 1) & 8)
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+ | ((byte << 1) & 16)
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+ | ((byte << 3) & 32)
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+ | ((byte << 5) & 64)
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+ | ((byte << 7) & 128);
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+ /* FIXME: implement for bitfields > 1 byte and other archs */
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+ }
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+#else
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+ *(uint32_t *)dst = tswap32(*(uint32_t *)src);
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+#endif
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+ break;
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case TYPE_LONGLONG:
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case TYPE_ULONGLONG:
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*(uint64_t *)dst = tswap64(*(uint64_t *)src);
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