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Diffstat (limited to 'xpcom/reflect/xptcall/md/unix/xptcinvoke_pa32.cpp')
-rw-r--r--xpcom/reflect/xptcall/md/unix/xptcinvoke_pa32.cpp149
1 files changed, 149 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 000000000..0e6d28fbd
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/unix/xptcinvoke_pa32.cpp
@@ -0,0 +1,149 @@
+
+/* -*- 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;
+}
+