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2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
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5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 #include <malloc.h>
25 #include <rtl/alloc.h>
26
27 #include <com/sun/star/uno/genfunc.hxx>
28 #include "com/sun/star/uno/RuntimeException.hpp"
29 #include <uno/data.h>
30
31 #include <bridges/cpp_uno/shared/bridge.hxx>
32 #include <bridges/cpp_uno/shared/types.hxx>
33 #include <bridges/cpp_uno/shared/unointerfaceproxy.hxx>
34 #include <bridges/cpp_uno/shared/vtables.hxx>
35
36 #include "share.hxx"
37
38 #include <stdio.h>
39 #include <string.h>
40
41 using namespace ::rtl;
42 using namespace ::com::sun::star::uno;
43
MapReturn(sal_uInt32 ret0,sal_uInt32 ret1,typelib_TypeDescription * pReturnTypeDescr,bool bRegisterReturn,sal_uInt32 * pRegisterReturn)44 void MapReturn(sal_uInt32 ret0, sal_uInt32 ret1, typelib_TypeDescription *pReturnTypeDescr, bool bRegisterReturn, sal_uInt32 *pRegisterReturn)
45 {
46 register float fret asm("fr4");
47 register double dret asm("fr4");
48
49 switch (pReturnTypeDescr->eTypeClass)
50 {
51 case typelib_TypeClass_HYPER:
52 case typelib_TypeClass_UNSIGNED_HYPER:
53 pRegisterReturn[1] = ret1;
54 case typelib_TypeClass_LONG:
55 case typelib_TypeClass_UNSIGNED_LONG:
56 case typelib_TypeClass_ENUM:
57 case typelib_TypeClass_CHAR:
58 case typelib_TypeClass_SHORT:
59 case typelib_TypeClass_UNSIGNED_SHORT:
60 case typelib_TypeClass_BOOLEAN:
61 case typelib_TypeClass_BYTE:
62 pRegisterReturn[0] = ret0;
63 break;
64 case typelib_TypeClass_FLOAT:
65 *(float*)pRegisterReturn = fret;
66 break;
67 case typelib_TypeClass_DOUBLE:
68 *(double*)pRegisterReturn = dret;
69 break;
70 case typelib_TypeClass_STRUCT:
71 case typelib_TypeClass_EXCEPTION:
72 {
73 if (bRegisterReturn)
74 {
75 pRegisterReturn[0] = ret0;
76 pRegisterReturn[1] = ret1;
77 }
78 break;
79 }
80 default:
81 break;
82 }
83 }
84
85 //Moved callVirtual into this .cxx so that I can do this and get gcc to not
86 //touch r28 without having to learn any more pa-risc assembly than is
87 //strictly necessary
88 register sal_uInt32 r28 __asm__("%r28");
89
90 void callVirtualMethod(void * pThis, sal_uInt32 nVtableIndex,
91 void * pRegisterReturn, typelib_TypeDescription *pReturnTypeDescr, bool bRegisterReturn,
92 sal_uInt32 *pStack, sal_uInt32 nStack, sal_uInt32 *pGPR, double *pFPR) __attribute__((noinline));
93
callVirtualMethod(void * pThis,sal_uInt32 nVtableIndex,void * pRegisterReturn,typelib_TypeDescription * pReturnTypeDescr,bool bRegisterReturn,sal_uInt32 * pStack,sal_uInt32 nStack,sal_uInt32 * pGPR,double * pFPR)94 void callVirtualMethod(void * pThis, sal_uInt32 nVtableIndex,
95 void * pRegisterReturn, typelib_TypeDescription *pReturnTypeDescr, bool bRegisterReturn,
96 sal_uInt32 *pStack, sal_uInt32 nStack, sal_uInt32 *pGPR, double *pFPR)
97 {
98 register sal_uInt32* sp __asm__("%r30");
99
100 sal_uInt32 pMethod = *((sal_uInt32*)pThis);
101 pMethod += 4 * nVtableIndex;
102 pMethod = *((sal_uInt32 *)pMethod);
103
104 #ifdef CMC_DEBUG
105 fprintf(stderr, "this is %p\n", pGPR[0]);
106 for (int i = 0; i < hppa::MAX_GPR_REGS ; ++i)
107 fprintf(stderr, "normal reg %d is %d %x\n", i, pGPR[i], pGPR[i]);
108
109 for (int i = 0; i < hppa::MAX_SSE_REGS ; ++i)
110 fprintf(stderr, "float reg %d is %x\n", i, pFPR[i]);
111
112 for (int i = 0; i < nStack; ++i)
113 fprintf(stderr, "stack bytes are %x\n", pStack[i]);
114 #endif
115
116 //Always reserve 4 slots, and align to 8 bytes
117 sal_uInt32 nStackBytes = ( ( nStack + 4 + 1 ) >> 1 ) * 8;
118 __builtin_alloca(nStackBytes);
119 sal_uInt32 *stack = sp-8;
120 int o = -5;
121 for (sal_uInt32 i = 0; i < nStack; ++i, --o)
122 stack[o] = pStack[i];
123
124 typedef int (* FunctionCall )( sal_uInt32, sal_uInt32, sal_uInt32, sal_uInt32 );
125 FunctionCall pFunc = (FunctionCall)pMethod;
126
127 asm volatile("fldd %0, %%fr4" : : "m"(pFPR[0]) : "fr4");
128 asm volatile("fldd %0, %%fr5" : : "m"(pFPR[1]) : "fr5");
129 asm volatile("fldd %0, %%fr6" : : "m"(pFPR[2]) : "fr6");
130 asm volatile("fldd %0, %%fr7" : : "m"(pFPR[3]) : "fr7");
131 asm volatile("ldw %0, %%r28" : : "m"(pRegisterReturn) : "r28");
132 (*pFunc)(pGPR[0], pGPR[1], pGPR[2], pGPR[3]);
133
134 register sal_uInt32 r29 __asm__("%r29");
135 MapReturn(r28, r29, pReturnTypeDescr, bRegisterReturn, (sal_uInt32*)pRegisterReturn);
136 }
137
138 /* vi:set tabstop=4 shiftwidth=4 expandtab: */
139