mirror of
https://github.com/gnustep/libs-base.git
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71 lines
1.9 KiB
Text
71 lines
1.9 KiB
Text
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inline static void*
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mframe_arg_addr(arglist_t argf, NSArgumentInfo *info)
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{
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int offset = info->offset;
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#if WORDS_BIGENDIAN
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if (info->size < sizeof(int))
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offset += sizeof(int) - info->size;
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#endif
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if (info->isReg)
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return(argf->arg_regs + offset);
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else
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return(argf->arg_ptr + offset);
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}
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inline static void
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mframe_get_arg(arglist_t argf, NSArgumentInfo *info, void* buffer)
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{
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#if MFRAME_STRUCT_BYREF
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const char *typ = info->type;
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/*
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* If structures are passed in the stack frame by reference - we need
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* to copy the actual structure, rather than it's pointer.
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*/
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if (*typ == _C_STRUCT_B || *typ == _C_UNION_B || *typ == _C_ARY_B) {
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memcpy(buffer, *(void**)mframe_arg_addr(argf, info), info->size);
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}
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else
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#endif
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memcpy(buffer, mframe_arg_addr(argf, info), info->size);
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}
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inline static void
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mframe_set_arg(arglist_t argf, NSArgumentInfo *info, void* buffer)
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{
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#if MFRAME_STRUCT_BYREF
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const char *typ = info->type;
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/*
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* If structures are passed in the stack frame by reference - we need
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* to copy a pointer onto the stack rather than the actual structure.
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*/
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if (*typ == _C_STRUCT_B || *typ == _C_UNION_B || *typ == _C_ARY_B) {
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memcpy(mframe_arg_addr(argf, info), &buffer, sizeof(void*));
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}
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else
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#endif
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memcpy(mframe_arg_addr(argf, info), buffer, info->size);
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}
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inline static void
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mframe_cpy_arg(arglist_t dst, arglist_t src, NSArgumentInfo *info)
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{
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#if MFRAME_STRUCT_BYREF
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const char *typ = info->type;
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/*
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* If structures are passed in the stack frame by reference - we need
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* to copy a pointer onto the stack rather than the actual structure.
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*/
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if (*typ == _C_STRUCT_B || *typ == _C_UNION_B || *typ == _C_ARY_B) {
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memcpy(mframe_arg_addr(dst, info), mframe_arg_addr(src, info), sizeof(void*));
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}
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else
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#endif
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memcpy(mframe_arg_addr(dst, info), mframe_arg_addr(src, info), info->size);
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}
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#endif /* __mframe_h_GNUSTEP_BASE_INCLUDE */
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