зеркало из https://github.com/mozilla/gecko-dev.git
Windows CE specific XPTCALL changes. This should better support SharedStub
Patch by John Wolf. windows ce only. not part of normal build.
This commit is contained in:
dougt%meer.net
Родитель
be6760da53
Коммит
0fe2e00d38
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@ -80,6 +80,12 @@ ASFILES := xptcinvoke_asm_x86_64.asm xptcstubs_asm_x86_64.asm
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endif
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ifeq ($(OS_ARCH),WINCE)
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ifeq ($(TARGET_DEVICE),)
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TARGET_DEVICE=device
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endif
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ifeq ($(TARGET_DEVICE),device)
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ifeq ($(TARGET_CPU),arm)
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CPPSRCS = xptcinvokece.cpp xptcstubsce.cpp
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ASFILES = xptc_arm_ceppc.asm
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@ -89,6 +95,15 @@ AS_DASH_C_FLAG =
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endif
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endif
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ifeq ($(TARGET_DEVICE),emulator)
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CPPSRCS = xptcinvoke.cpp xptcstubs.cpp
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ASFILES =
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AS = $(CYGWIN_WRAPPER) arm-wince-as
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ASFLAGS += -I ../../../public
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AS_DASH_C_FLAG =
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endif
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endif
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# we don't want the shared lib, but we want to force the creation of a static lib.
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FORCE_STATIC_LIB = 1
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@ -43,84 +43,108 @@
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extern "C" {
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nsresult __stdcall
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PrepareAndDispatch(nsXPTCStubBase* self, PRUint32 methodIndex,
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PRUint32* args, PRUint32* stackBytesToPop)
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nsresult
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PrepareAndDispatch(nsXPTCStubBase* self, uint32 methodIndex, PRUint32* args)
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{
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#define PARAM_BUFFER_COUNT 16
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nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
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nsXPTCMiniVariant* dispatchParams = NULL;
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nsIInterfaceInfo* iface_info = NULL;
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const nsXPTMethodInfo* info = NULL;
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PRUint8 paramCount;
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PRUint8 i;
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nsresult result = NS_ERROR_FAILURE;
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// If anything fails before stackBytesToPop can be set then
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// the failure is completely catastrophic!
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NS_ASSERTION(self,"no self");
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self->GetInterfaceInfo(&iface_info);
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NS_ASSERTION(iface_info,"no interface info");
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iface_info->GetMethodInfo(PRUint16(methodIndex), &info);
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NS_ASSERTION(info,"no interface info");
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paramCount = info->GetParamCount();
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// setup variant array pointer
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if(paramCount > PARAM_BUFFER_COUNT)
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dispatchParams = new nsXPTCMiniVariant[paramCount];
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else
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dispatchParams = paramBuffer;
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NS_ASSERTION(dispatchParams,"no place for params");
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PRUint32* ap = args;
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for(i = 0; i < paramCount; i++, ap++)
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{
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const nsXPTParamInfo& param = info->GetParam(i);
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const nsXPTType& type = param.GetType();
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nsXPTCMiniVariant* dp = &dispatchParams[i];
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if(param.IsOut() || !type.IsArithmetic())
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{
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dp->val.p = (void*) *ap;
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continue;
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}
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// else
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switch(type)
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{
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case nsXPTType::T_I8 : dp->val.i8 = *((PRInt8*) ap); break;
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case nsXPTType::T_I16 : dp->val.i16 = *((PRInt16*) ap); break;
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case nsXPTType::T_I32 : dp->val.i32 = *((PRInt32*) ap); break;
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case nsXPTType::T_I64 : dp->val.i64 = *((PRInt64*) ap); ap++; break;
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case nsXPTType::T_U8 : dp->val.u8 = *((PRUint8*) ap); break;
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case nsXPTType::T_U16 : dp->val.u16 = *((PRUint16*)ap); break;
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case nsXPTType::T_U32 : dp->val.u32 = *((PRUint32*)ap); break;
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case nsXPTType::T_U64 : dp->val.u64 = *((PRUint64*)ap); ap++; break;
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case nsXPTType::T_FLOAT : dp->val.f = *((float*) ap); break;
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case nsXPTType::T_DOUBLE : dp->val.d = *((double*) ap); ap++; break;
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case nsXPTType::T_BOOL : dp->val.b = *((PRBool*) ap); break;
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case nsXPTType::T_CHAR : dp->val.c = *((char*) ap); break;
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case nsXPTType::T_WCHAR : dp->val.wc = *((wchar_t*) ap); break;
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default:
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NS_ASSERTION(0, "bad type");
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break;
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}
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}
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*stackBytesToPop = ((PRUint32)ap) - ((PRUint32)args);
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result = self->CallMethod((PRUint16)methodIndex, info, dispatchParams);
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NS_RELEASE(iface_info);
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if(dispatchParams != paramBuffer)
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delete [] dispatchParams;
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return result;
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nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
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nsXPTCMiniVariant* dispatchParams = NULL;
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nsIInterfaceInfo* iface_info = NULL;
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const nsXPTMethodInfo* info;
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PRUint8 paramCount;
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PRUint8 i;
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nsresult result = NS_ERROR_FAILURE;
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NS_ASSERTION(self,"no self");
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self->GetInterfaceInfo(&iface_info);
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NS_ASSERTION(iface_info,"no interface info");
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iface_info->GetMethodInfo(PRUint16(methodIndex), &info);
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NS_ASSERTION(info,"no interface info");
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paramCount = info->GetParamCount();
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// setup variant array pointer
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if(paramCount > PARAM_BUFFER_COUNT)
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dispatchParams = new nsXPTCMiniVariant[paramCount];
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else
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dispatchParams = paramBuffer;
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NS_ASSERTION(dispatchParams,"no place for params");
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PRUint32* ap = args;
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for(i = 0; i < paramCount; i++, ap++)
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{
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const nsXPTParamInfo& param = info->GetParam(i);
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const nsXPTType& type = param.GetType();
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nsXPTCMiniVariant* dp = &dispatchParams[i];
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#ifndef AARONTEMP
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if(i==3)
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{
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// PrepareAndDispatch makes an assumption that is causing us problems. It
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// assumes that all of the parameters that need to go to the method that we
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// are resolving are contiguous and on the stack. However, ARM keeps
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// parameters 1-3 in registers and pushes parameters 4 and above when it
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// makes function calls. This is causing us problems. In our error scenario,
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// STACK_ENTRY(x) is called. All parameters EXCEPT 1-3 come into
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// STACK_ENTRY(x) on the stack. When SharedStubs is eventually called, it
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// will do the push of 1-3 on to the stack. But to get to SharedStubs,
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// STACK_ENTRY(x) has to make a c++ function call to
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// asmXPTCStubBase_Stub##n(). The preparation of which pushes r0, r12, and
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// the return address onto the stack, as well as making room for two more
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// double words on the stack. For a total of 5 double words on the stack
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// between parameter 3 and parameter 4. asmXPTCStubBase_Stub##n() will then
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// call SharedStubs, which will call PrepareAndDispatch.
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//
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// NOTE: this is ARM DEPENDENT. This should not be compiled for other
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// processors.
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//
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// NOTE: this also assumes that this WinCE PrepareAndDispatch can only be
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// called in the sequence mentioned above.
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ap += 5;
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}
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#endif /* AARONTEMP */
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if(param.IsOut() || !type.IsArithmetic())
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{
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dp->val.p = (void*) *ap;
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continue;
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}
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// else
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switch(type)
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{
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case nsXPTType::T_I8 : dp->val.i8 = *((PRInt8*) ap); break;
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case nsXPTType::T_I16 : dp->val.i16 = *((PRInt16*) ap); break;
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case nsXPTType::T_I32 : dp->val.i32 = *((PRInt32*) ap); break;
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case nsXPTType::T_I64 : dp->val.i64 = *((PRInt64*) ap); ap++; break;
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case nsXPTType::T_U8 : dp->val.u8 = *((PRUint8*) ap); break;
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case nsXPTType::T_U16 : dp->val.u16 = *((PRUint16*)ap); break;
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case nsXPTType::T_U32 : dp->val.u32 = *((PRUint32*)ap); break;
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case nsXPTType::T_U64 : dp->val.u64 = *((PRUint64*)ap); ap++; break;
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case nsXPTType::T_FLOAT : dp->val.f = *((float*) ap); break;
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case nsXPTType::T_DOUBLE : dp->val.d = *((double*) ap); ap++; break;
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case nsXPTType::T_BOOL : dp->val.b = *((PRBool*) ap); break;
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case nsXPTType::T_CHAR : dp->val.c = *((char*) ap); break;
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case nsXPTType::T_WCHAR : dp->val.wc = *((wchar_t*) ap); break;
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default:
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NS_ASSERTION(0, "bad type");
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break;
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}
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}
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result = self->CallMethod((PRUint16)methodIndex, info, dispatchParams);
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NS_RELEASE(iface_info);
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if(dispatchParams != paramBuffer)
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delete [] dispatchParams;
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return result;
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}
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} // extern "C"
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