Add m-esr52 at 52.6.0

1 files changed, 74 insertions, 0 deletions

diff --git a/xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc_aix.cpp b/xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc_aix.cpp
new file mode 100644
index 000000000..ba2a5dab0
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc_aix.cpp
@@ -0,0 +1,74 @@
+/* -*- 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/. */
+
+/* Platform specific code to invoke XPCOM methods on native objects */
+
+#include "xptcprivate.h"
+
+#ifndef AIX
+#error "This code is for PowerPC only"
+#endif
+
+extern "C" void
+invoke_copy_to_stack(uint32_t* d, uint32_t paramCount, nsXPTCVariant* s, double *fprData)
+{
+/*
+    We need to copy the parameters for this function to locals and use them
+    from there since the parameters occupy the same stack space as the stack
+    we're trying to populate.
+*/
+    uint32_t *l_d = d;
+    nsXPTCVariant *l_s = s;
+    uint32_t l_paramCount = paramCount, fpCount = 0;
+    double *l_fprData = fprData;
+
+    typedef struct {
+        uint32_t hi;
+        uint32_t lo;
+    } DU;               // have to move 64 bit entities as 32 bit halves since
+                        // stack slots are not guaranteed 16 byte aligned
+
+    for(uint32_t i = 0; i < l_paramCount; i++, l_d++, l_s++)
+    {
+        if(l_s->IsPtrData())
+        {
+            *((void**)l_d) = l_s->ptr;
+            continue;
+        }
+        switch(l_s->type)
+        {
+        case nsXPTType::T_I8     : *((int32_t*)  l_d) = l_s->val.i8;          break;
+        case nsXPTType::T_I16    : *((int32_t*)  l_d) = l_s->val.i16;         break;
+        case nsXPTType::T_I32    : *((int32_t*)  l_d) = l_s->val.i32;         break;
+        case nsXPTType::T_I64    : 
+        case nsXPTType::T_U64    :
+            *((uint32_t*) l_d++) = ((DU *)l_s)->hi;
+            *((uint32_t*) l_d) = ((DU *)l_s)->lo;
+            break;
+        case nsXPTType::T_DOUBLE :
+            *((uint32_t*) l_d++) = ((DU *)l_s)->hi;
+            *((uint32_t*) l_d) = ((DU *)l_s)->lo;
+            if(fpCount < 13)
+                l_fprData[fpCount++] = l_s->val.d;
+            break;
+        case nsXPTType::T_U8     : *((uint32_t*) l_d) = l_s->val.u8;          break;
+        case nsXPTType::T_U16    : *((uint32_t*) l_d) = l_s->val.u16;         break;
+        case nsXPTType::T_U32    : *((uint32_t*) l_d) = l_s->val.u32;         break;
+        case nsXPTType::T_FLOAT  :
+            *((float*)  l_d) = l_s->val.f;
+            if(fpCount < 13)
+                l_fprData[fpCount++] = l_s->val.f;
+            break;
+        case nsXPTType::T_BOOL   : *((uint32_t*) l_d) = l_s->val.b;           break;
+        case nsXPTType::T_CHAR   : *((uint32_t*) l_d) = l_s->val.c;           break;
+        case nsXPTType::T_WCHAR  : *((int32_t*)  l_d) = l_s->val.wc;          break;
+        default:
+            // all the others are plain pointer types
+            *((void**)l_d) = l_s->val.p;
+            break;
+        }
+    }
+}
+