From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 19:32:43 +0200
Subject: Adding upstream version 1:115.7.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../xptcall/md/unix/xptcstubs_gcc_x86_unix.cpp     | 132 +++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 xpcom/reflect/xptcall/md/unix/xptcstubs_gcc_x86_unix.cpp

(limited to 'xpcom/reflect/xptcall/md/unix/xptcstubs_gcc_x86_unix.cpp')

diff --git a/xpcom/reflect/xptcall/md/unix/xptcstubs_gcc_x86_unix.cpp b/xpcom/reflect/xptcall/md/unix/xptcstubs_gcc_x86_unix.cpp
new file mode 100644
index 0000000000..5f0c3ba04e
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/unix/xptcstubs_gcc_x86_unix.cpp
@@ -0,0 +1,132 @@
+/* -*- 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"
+#include "xptc_gcc_x86_unix.h"
+
+extern "C" {
+static nsresult ATTRIBUTE_USED
+__attribute__ ((regparm (3)))
+PrepareAndDispatch(uint32_t methodIndex, nsXPTCStubBase* self, uint32_t* args)
+{
+
+    nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
+    const nsXPTMethodInfo* info;
+    uint8_t paramCount;
+    uint8_t i;
+
+    NS_ASSERTION(self,"no self");
+
+    self->mEntry->GetMethodInfo(uint16_t(methodIndex), &info);
+    paramCount = info->GetParamCount();
+
+    const uint8_t indexOfJSContext = info->IndexOfJSContext();
+
+    uint32_t* ap = args;
+    for(i = 0; i < paramCount; i++, ap++)
+    {
+        const nsXPTParamInfo& param = info->GetParam(i);
+        const nsXPTType& type = param.GetType();
+        nsXPTCMiniVariant* dp = &paramBuffer[i];
+
+        if (i == indexOfJSContext)
+            ap++;
+
+        if(param.IsOut() || !type.IsArithmetic())
+        {
+            dp->val.p = (void*) *ap;
+            continue;
+        }
+        // else
+	    dp->val.p = (void*) *ap;
+        switch(type)
+        {
+        case nsXPTType::T_I64    : dp->val.i64 = *((int64_t*) ap); ap++; break;
+        case nsXPTType::T_U64    : dp->val.u64 = *((uint64_t*)ap); ap++; break;
+        case nsXPTType::T_DOUBLE : dp->val.d   = *((double*)  ap); ap++; break;
+        default                  : break;
+        }
+    }
+
+    nsresult result = self->mOuter->CallMethod((uint16_t)methodIndex, info,
+                                               paramBuffer);
+
+    return result;
+}
+} // extern "C"
+
+#if !defined(XP_MACOSX)
+
+#define STUB_HEADER(a, b) ".hidden " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase" #a "Stub" #b "Ev\n\t" \
+                          ".type   " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase" #a "Stub" #b "Ev,@function\n"
+
+#define STUB_SIZE(a, b)  ".size        " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase" #a "Stub" #b "Ev,.-" SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase" #a "Stub" #b "Ev\n\t"
+
+#else
+
+#define STUB_HEADER(a, b)
+#define STUB_SIZE(a, b)
+
+#endif
+
+// gcc3 mangling tends to insert the length of the method name
+#define STUB_ENTRY(n) \
+asm(".text\n\t" \
+    ".align	2\n\t" \
+    ".if	" #n " < 10\n\t" \
+    ".globl	" SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase5Stub" #n "Ev\n\t" \
+    STUB_HEADER(5, n)                                                   \
+    SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase5Stub" #n "Ev:\n\t" \
+    ".elseif	" #n " < 100\n\t" \
+    ".globl	" SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase6Stub" #n "Ev\n\t" \
+    STUB_HEADER(6, n)                                                   \
+    SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase6Stub" #n "Ev:\n\t" \
+    ".elseif    " #n " < 1000\n\t" \
+    ".globl     " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase7Stub" #n "Ev\n\t" \
+    STUB_HEADER(7, n)                                                   \
+    SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase7Stub" #n "Ev:\n\t" \
+    ".else\n\t" \
+    ".err	\"stub number " #n " >= 1000 not yet supported\"\n\t" \
+    ".endif\n\t" \
+    "movl	$" #n ", %eax\n\t" \
+    "jmp	" SYMBOL_UNDERSCORE "SharedStub\n\t" \
+    ".if	" #n " < 10\n\t" \
+    STUB_SIZE(5, n) \
+    ".elseif	" #n " < 100\n\t" \
+    STUB_SIZE(6, n) \
+    ".else\n\t" \
+    STUB_SIZE(7, n) \
+    ".endif");
+
+// static nsresult SharedStub(uint32_t methodIndex) __attribute__((regparm(1)))
+asm(".text\n\t"
+    ".align	2\n\t"
+#if !defined(XP_MACOSX)
+    ".type	" SYMBOL_UNDERSCORE "SharedStub,@function\n\t"
+#endif
+    SYMBOL_UNDERSCORE "SharedStub:\n\t"
+    "leal	0x08(%esp), %ecx\n\t"
+    "movl	0x04(%esp), %edx\n\t"
+    "jmp	" SYMBOL_UNDERSCORE "PrepareAndDispatch\n\t"
+#if !defined(XP_MACOSX)
+    ".size	" SYMBOL_UNDERSCORE "SharedStub,.-" SYMBOL_UNDERSCORE "SharedStub"
+#endif
+);
+
+#define SENTINEL_ENTRY(n) \
+nsresult nsXPTCStubBase::Sentinel##n() \
+{ \
+    NS_ERROR("nsXPTCStubBase::Sentinel called"); \
+    return NS_ERROR_NOT_IMPLEMENTED; \
+}
+
+#include "xptcstubsdef.inc"
+
+void
+xptc_dummy()
+{
+}
-- 
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