Add m-esr52 at 52.6.0

1 files changed, 185 insertions, 0 deletions

diff --git a/xpcom/reflect/xptcall/md/unix/xptcstubs_ppc_netbsd.cpp b/xpcom/reflect/xptcall/md/unix/xptcstubs_ppc_netbsd.cpp
new file mode 100644
index 000000000..ec359fc99
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/unix/xptcstubs_ppc_netbsd.cpp
@@ -0,0 +1,185 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Implement shared vtbl methods.
+
+#include "xptcprivate.h"
+
+// The Linux/PPC ABI (aka PPC/SYSV ABI) passes the first 8 integral
+// parameters and the first 8 floating point parameters in registers
+// (r3-r10 and f1-f8), no stack space is allocated for these by the
+// caller.  The rest of the parameters are passed in the callers stack
+// area. The stack pointer has to retain 16-byte alignment, longlongs
+// and doubles are aligned on 8-byte boundaries.
+
+#define PARAM_BUFFER_COUNT     16
+#define GPR_COUNT               8
+#define FPR_COUNT               8
+
+// PrepareAndDispatch() is called by SharedStub() and calls the actual method.
+//
+// - 'args[]' contains the arguments passed on stack
+// - 'gprData[]' contains the arguments passed in integer registers
+// - 'fprData[]' contains the arguments passed in floating point registers
+// 
+// The parameters are mapped into an array of type 'nsXPTCMiniVariant'
+// and then the method gets called.
+
+extern "C" nsresult ATTRIBUTE_USED
+PrepareAndDispatch(nsXPTCStubBase* self,
+                   uint32_t methodIndex,
+                   uint32_t* args,
+                   uint32_t *gprData,
+                   double *fprData)
+{
+    nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
+    nsXPTCMiniVariant* dispatchParams = nullptr;
+    nsIInterfaceInfo* iface_info = nullptr;
+    const nsXPTMethodInfo* info;
+    uint32_t paramCount;
+    uint32_t i;
+    nsresult result = NS_ERROR_FAILURE;
+
+    NS_ASSERTION(self,"no self");
+
+    self->GetInterfaceInfo(&iface_info);
+    NS_ASSERTION(iface_info,"no interface info");
+    if (! iface_info)
+        return NS_ERROR_UNEXPECTED;
+
+    iface_info->GetMethodInfo(uint16_t(methodIndex), &info);
+    NS_ASSERTION(info,"no method info");
+    if (! info)
+        return NS_ERROR_UNEXPECTED;
+
+    paramCount = info->GetParamCount();
+
+    // setup variant array pointer
+    if(paramCount > PARAM_BUFFER_COUNT)
+        dispatchParams = new nsXPTCMiniVariant[paramCount];
+    else
+        dispatchParams = paramBuffer;
+
+    NS_ASSERTION(dispatchParams,"no place for params");
+    if (! dispatchParams)
+        return NS_ERROR_OUT_OF_MEMORY;
+
+    uint32_t* ap = args;
+    uint32_t gpr = 1;    // skip one GPR register
+    uint32_t fpr = 0;
+    uint32_t tempu32;
+    uint64_t tempu64;
+
+    for(i = 0; i < paramCount; i++) {
+        const nsXPTParamInfo& param = info->GetParam(i);
+        const nsXPTType& type = param.GetType();
+        nsXPTCMiniVariant* dp = &dispatchParams[i];
+	
+        if (!param.IsOut() && type == nsXPTType::T_DOUBLE) {
+            if (fpr < FPR_COUNT)
+                dp->val.d = fprData[fpr++];
+            else {
+                if ((uint32_t) ap & 4) ap++; // doubles are 8-byte aligned on stack
+                dp->val.d = *(double*) ap;
+                ap += 2;
+		if (gpr < GPR_COUNT)
+		    gpr += 2;
+            }
+            continue;
+        }
+        else if (!param.IsOut() && type == nsXPTType::T_FLOAT) {
+            if (fpr < FPR_COUNT)
+                dp->val.f = (float) fprData[fpr++]; // in registers floats are passed as doubles
+            else {
+                dp->val.f = *(float*) ap;
+		ap += 1;
+		if (gpr < GPR_COUNT)
+		    gpr += 1;
+            }
+            continue;
+        }
+        else if (!param.IsOut() && (type == nsXPTType::T_I64
+                                    || type == nsXPTType::T_U64)) {
+            if (gpr & 1) gpr++; // longlongs are aligned in odd/even register pairs, eg. r5/r6
+            if ((gpr + 1) < GPR_COUNT) {
+                tempu64 = *(uint64_t*) &gprData[gpr];
+                gpr += 2;
+            }
+            else {
+                if ((uint32_t) ap & 4) ap++; // longlongs are 8-byte aligned on stack
+                tempu64 = *(uint64_t*) ap;
+                ap += 2;
+            }
+        }
+        else {
+            if (gpr < GPR_COUNT)
+                tempu32 = gprData[gpr++];
+            else
+                tempu32 = *ap++;
+        }
+
+        if(param.IsOut() || !type.IsArithmetic()) {
+            if (type == nsXPTType::T_JSVAL)
+                dp->val.p = *((void**) tempu32);
+            else
+                dp->val.p = (void*) tempu32;
+            continue;
+        }
+
+        switch(type) {
+        case nsXPTType::T_I8:      dp->val.i8  = (int8_t)   tempu32; break;
+        case nsXPTType::T_I16:     dp->val.i16 = (int16_t)  tempu32; break;
+        case nsXPTType::T_I32:     dp->val.i32 = (int32_t)  tempu32; break;
+        case nsXPTType::T_I64:     dp->val.i64 = (int64_t)  tempu64; break;
+        case nsXPTType::T_U8:      dp->val.u8  = (uint8_t)  tempu32; break;
+        case nsXPTType::T_U16:     dp->val.u16 = (uint16_t) tempu32; break;
+        case nsXPTType::T_U32:     dp->val.u32 = (uint32_t) tempu32; break;
+        case nsXPTType::T_U64:     dp->val.u64 = (uint64_t) tempu64; break;
+        case nsXPTType::T_BOOL:    dp->val.b   = (bool)     tempu32; break;
+        case nsXPTType::T_CHAR:    dp->val.c   = (char)     tempu32; break;
+        case nsXPTType::T_WCHAR:   dp->val.wc  = (wchar_t)  tempu32; break;
+
+        default:
+            NS_ERROR("bad type");
+            break;
+        }
+    }
+
+    result = self->CallMethod((uint16_t) methodIndex, info, dispatchParams);
+
+    NS_RELEASE(iface_info);
+
+    if (dispatchParams != paramBuffer)
+        delete [] dispatchParams;
+
+    return result;
+}
+
+// Load r11 with the constant 'n' and branch to SharedStub().
+//
+// XXX Yes, it's ugly that we're relying on gcc's name-mangling here;
+// however, it's quick, dirty, and'll break when the ABI changes on
+// us, which is what we want ;-).
+
+#define STUB_ENTRY(n)                                       \
+__asm__ (                                                   \
+        ".section \".text\" \n\t"                           \
+        ".align 2 \n\t"                                     \
+	".globl  Stub"#n"__14nsXPTCStubBase \n\t"           \
+	".type   Stub"#n"__14nsXPTCStubBase,@function \n\n" \
+                                                            \
+"Stub"#n"__14nsXPTCStubBase: \n\t"                          \
+	"li     11,"#n" \n\t"                               \
+	"b      SharedStub@local \n"                        \
+);
+
+#define SENTINEL_ENTRY(n)                            \
+nsresult nsXPTCStubBase::Sentinel##n()               \
+{                                                    \
+  NS_ERROR("nsXPTCStubBase::Sentinel called"); \
+  return NS_ERROR_NOT_IMPLEMENTED;                   \
+}
+
+#include "xptcstubsdef.inc"