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1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
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2 /* This Source Code Form is subject to the terms of the Mozilla Public |
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3 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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5 |
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6 /* Implement shared vtbl methods. */ |
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7 |
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8 #include "xptcprivate.h" |
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9 |
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10 #if !defined(__NetBSD__) || !defined(__m68k__) |
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11 #error This code is for NetBSD/m68k only |
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12 #endif |
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13 |
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14 extern "C" { |
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15 static nsresult ATTRIBUTE_USED |
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16 PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex, uint32_t* args) |
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17 { |
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18 #define PARAM_BUFFER_COUNT 16 |
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19 |
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20 nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT]; |
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21 nsXPTCMiniVariant* dispatchParams = nullptr; |
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22 nsIInterfaceInfo* iface_info = nullptr; |
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23 const nsXPTMethodInfo* info; |
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24 uint8_t paramCount; |
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25 uint8_t i; |
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26 nsresult result = NS_ERROR_FAILURE; |
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27 |
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28 NS_ASSERTION(self,"no self"); |
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29 |
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30 self->GetInterfaceInfo(&iface_info); |
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31 NS_ASSERTION(iface_info,"no interface info"); |
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32 |
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33 iface_info->GetMethodInfo(uint16_t(methodIndex), &info); |
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34 NS_ASSERTION(info,"no interface info"); |
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35 |
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36 paramCount = info->GetParamCount(); |
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37 |
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38 // setup variant array pointer |
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39 if(paramCount > PARAM_BUFFER_COUNT) |
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40 dispatchParams = new nsXPTCMiniVariant[paramCount]; |
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41 else |
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42 dispatchParams = paramBuffer; |
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43 NS_ASSERTION(dispatchParams,"no place for params"); |
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44 |
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45 uint32_t* ap = args; |
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46 for(i = 0; i < paramCount; i++, ap++) |
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47 { |
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48 const nsXPTParamInfo& param = info->GetParam(i); |
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49 const nsXPTType& type = param.GetType(); |
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50 nsXPTCMiniVariant* dp = &dispatchParams[i]; |
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51 |
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52 if(param.IsOut() || !type.IsArithmetic()) |
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53 { |
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54 dp->val.p = (void*) *ap; |
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55 continue; |
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56 } |
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57 |
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58 switch(type) |
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59 { |
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60 // the 8 and 16 bit types will have been promoted to 32 bits before |
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61 // being pushed onto the stack. Since the 68k is big endian, we |
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62 // need to skip over the leading high order bytes. |
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63 case nsXPTType::T_I8 : dp->val.i8 = *(((int8_t*) ap) + 3); break; |
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64 case nsXPTType::T_I16 : dp->val.i16 = *(((int16_t*) ap) + 1); break; |
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65 case nsXPTType::T_I32 : dp->val.i32 = *((int32_t*) ap); break; |
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66 case nsXPTType::T_I64 : dp->val.i64 = *((int64_t*) ap); ap++; break; |
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67 case nsXPTType::T_U8 : dp->val.u8 = *(((uint8_t*) ap) + 3); break; |
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68 case nsXPTType::T_U16 : dp->val.u16 = *(((uint16_t*)ap) + 1); break; |
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69 case nsXPTType::T_U32 : dp->val.u32 = *((uint32_t*)ap); break; |
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70 case nsXPTType::T_U64 : dp->val.u64 = *((uint64_t*)ap); ap++; break; |
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71 case nsXPTType::T_FLOAT : dp->val.f = *((float*) ap); break; |
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72 case nsXPTType::T_DOUBLE : dp->val.d = *((double*) ap); ap++; break; |
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73 case nsXPTType::T_BOOL : dp->val.b = *(((char*) ap) + 3); break; |
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74 case nsXPTType::T_CHAR : dp->val.c = *(((char*) ap) + 3); break; |
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75 // wchar_t is an int (32 bits) on NetBSD |
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76 case nsXPTType::T_WCHAR : dp->val.wc = *((wchar_t*) ap); break; |
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77 default: |
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78 NS_ERROR("bad type"); |
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79 break; |
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80 } |
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81 } |
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82 |
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83 result = self->CallMethod((uint16_t)methodIndex, info, dispatchParams); |
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84 |
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85 NS_RELEASE(iface_info); |
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86 |
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87 if(dispatchParams != paramBuffer) |
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88 delete [] dispatchParams; |
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89 |
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90 return result; |
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91 } |
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92 } |
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93 |
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94 #define STUB_ENTRY(n) \ |
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95 __asm__( \ |
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96 ".global _Stub"#n"__14nsXPTCStubBase\n\t" \ |
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97 "_Stub"#n"__14nsXPTCStubBase:\n\t" \ |
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98 "link a6,#0 \n\t" \ |
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99 "lea a6@(12), a0 \n\t" /* pointer to args */ \ |
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100 "movl a0, sp@- \n\t" \ |
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101 "movl #"#n", sp@- \n\t" /* method index */ \ |
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102 "movl a6@(8), sp@- \n\t" /* this */ \ |
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103 "jbsr _PrepareAndDispatch \n\t" \ |
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104 "unlk a6 \n\t" \ |
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105 "rts \n\t" \ |
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106 ); |
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107 |
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108 #define SENTINEL_ENTRY(n) \ |
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109 nsresult nsXPTCStubBase::Sentinel##n() \ |
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110 { \ |
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111 NS_ERROR("nsXPTCStubBase::Sentinel called"); \ |
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112 return NS_ERROR_NOT_IMPLEMENTED; \ |
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113 } |
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114 |
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115 #include "xptcstubsdef.inc" |