1 files changed, 148 insertions, 0 deletions
diff --git a/xpcom/reflect/xptcall/md/unix/xptcinvoke_pa32.cpp b/xpcom/reflect/xptcall/md/unix/xptcinvoke_pa32.cpp
new file mode 100644
index 0000000000..c0c3e510fa
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/unix/xptcinvoke_pa32.cpp
@@ -0,0 +1,148 @@
+
+/* -*- 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/. */
+
+#include "xptcprivate.h"
+
+#if _HPUX
+#error "This code is for HP-PA RISC 32 bit mode only"
+#endif
+
+#include <alloca.h>
+
+typedef unsigned nsXPCVariant;
+
+extern "C" int32_t
+invoke_count_bytes(nsISupports* that, const uint32_t methodIndex,
+  const uint32_t paramCount, const nsXPTCVariant* s)
+{
+  int32_t result = 4; /* variant records do not include self pointer */
+
+  /* counts the number of bytes required by the argument stack,
+     64 bit integer, and double requires 8 bytes.  All else requires
+     4 bytes.
+   */
+
+  {
+    uint32_t indx;
+    for (indx = paramCount; indx > 0; --indx, ++s)
+    {
+      if (! s->IsPtrData())
+      {
+        if (s->type == nsXPTType::T_I64 || s->type == nsXPTType::T_U64 ||
+            s->type == nsXPTType::T_DOUBLE)
+        {
+          /* 64 bit integer and double aligned on 8 byte boundaries */
+          result += (result & 4) + 8;
+          continue;
+        }
+      }
+      result += 4; /* all other cases use 4 bytes */
+    }
+  }
+  result -= 72; /* existing stack buffer is 72 bytes */
+  if (result < 0)
+    return 0;
+  {
+    /* round up to 64 bytes boundary */
+    int32_t remainder = result & 63;
+    return (remainder == 0) ? result : (result + 64 - remainder);
+  }
+}
+
+extern "C" uint32_t
+invoke_copy_to_stack(uint32_t* d,
+  const uint32_t paramCount, nsXPTCVariant* s)
+{
+
+  typedef struct
+  {
+    uint32_t hi;
+    uint32_t lo;
+  } DU;
+
+  uint32_t* dest = d;
+  nsXPTCVariant* source = s;
+  /* we clobber param vars by copying stuff on stack, have to use local var */
+
+  uint32_t floatflags = 0;
+  /* flag indicating which floating point registers to load */
+
+  uint32_t regwords = 1; /* register 26 is reserved for ptr to 'that' */
+  uint32_t indx;
+
+  for (indx = paramCount; indx > 0; --indx, --dest, ++source)
+  {
+    if (source->IsPtrData())
+    {
+      *((void**) dest) = source->ptr;
+      ++regwords;
+      continue;
+    }
+    switch (source->type)
+    {
+    case nsXPTType::T_I8    : *((int32_t*) dest) = source->val.i8;  break;
+    case nsXPTType::T_I16   : *((int32_t*) dest) = source->val.i16; break;
+    case nsXPTType::T_I32   : *((int32_t*) dest) = source->val.i32; break;
+    case nsXPTType::T_I64   :
+    case nsXPTType::T_U64   :
+      if (regwords & 1)
+      {
+        /* align on double word boundary */
+        --dest;
+        ++regwords;
+      }
+      *((uint32_t*) dest) = ((DU *) source)->lo;
+      *((uint32_t*) --dest) = ((DU *) source)->hi;
+      /* big endian - hi word in low addr */
+      regwords += 2;
+      continue;
+    case nsXPTType::T_DOUBLE :
+      if (regwords & 1)
+      {
+        /* align on double word boundary */
+        --dest;
+        ++regwords;
+      }
+      switch (regwords) /* load double precision float register */
+      {
+      case 2:
+        floatflags |= 1;
+      }
+      *((uint32_t*) dest) = ((DU *) source)->lo;
+      *((uint32_t*) --dest) = ((DU *) source)->hi;
+      /* big endian - hi word in low addr */
+      regwords += 2;
+      continue;
+    case nsXPTType::T_FLOAT :
+      switch (regwords) /* load single precision float register */
+      {
+      case 1:
+        floatflags |= 2;
+        break;
+      case 2:
+        floatflags |= 4;
+        break;
+      case 3:
+        floatflags |= 8;
+      }
+      *((float*) dest) = source->val.f;
+      break;
+    case nsXPTType::T_U8    : *((uint32_t*) (dest)) = source->val.u8; break;
+    case nsXPTType::T_U16   : *((uint32_t*) (dest)) = source->val.u16; break;
+    case nsXPTType::T_U32   : *((uint32_t*) (dest)) = source->val.u32; break;
+    case nsXPTType::T_BOOL  : *((uint32_t*) (dest)) = source->val.b; break;
+    case nsXPTType::T_CHAR  : *((uint32_t*) (dest)) = source->val.c; break;
+    case nsXPTType::T_WCHAR : *((int32_t*)  (dest)) = source->val.wc; break;
+
+    default:
+      // all the others are plain pointer types
+      *((void**) dest) = source->val.p;
+    }
+    ++regwords;
+  }
+  return floatflags;
+}