зеркало из https://github.com/mozilla/gecko-dev.git
Backout changeset e76f06f7e08d
This commit is contained in:
Jacek Caban
Родитель
293c6cddef
Коммит
36ce41e3e0
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@ -48,7 +48,7 @@ EXPORT_LIBRARY = ../..
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MOZILLA_INTERNAL_API = 1
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CPPSRCS = \
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../win32/xptcinvoke_x86_gnu.cpp \
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../unix/xptcinvoke_gcc_x86_unix.cpp \
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xptcstubs_gcc_x86_os2.cpp \
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$(NULL)
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LOCAL_INCLUDES = \
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@ -41,6 +41,14 @@
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// this may improve the static function calls, but may not.
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//
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// #define MOZ_USE_STDCALL
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#ifdef MOZ_USE_STDCALL
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#define ATTRIBUTE_STDCALL __attribute__ ((__stdcall__))
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#else
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#define ATTRIBUTE_STDCALL
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#endif
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#ifdef MOZ_NEED_LEADING_UNDERSCORE
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#define SYMBOL_UNDERSCORE "_"
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#else
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@ -42,7 +42,10 @@
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#include "xptc_gcc_x86_unix.h"
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extern "C" {
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static ATTRIBUTE_USED __attribute__ ((regparm(3)))
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#ifndef XP_WIN32
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static
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#endif
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void ATTRIBUTE_USED __attribute__ ((regparm(3)))
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invoke_copy_to_stack(PRUint32 paramCount, nsXPTCVariant* s, PRUint32* d)
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{
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for(PRUint32 i = paramCount; i >0; i--, d++, s++)
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@ -86,7 +89,7 @@ __asm__ (
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is what xptcstubs uses. */
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".align 2\n\t"
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".globl " SYMBOL_UNDERSCORE "NS_InvokeByIndex_P\n\t"
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#ifndef XP_MACOSX
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#if !defined(XP_WIN32) && !defined(XP_OS2) && !defined(XP_MACOSX)
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".type " SYMBOL_UNDERSCORE "NS_InvokeByIndex_P,@function\n"
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#endif
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SYMBOL_UNDERSCORE "NS_InvokeByIndex_P:\n\t"
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@ -124,7 +127,11 @@ __asm__ (
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"movl %ebp, %esp\n\t"
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"popl %ebp\n\t"
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"ret\n"
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#ifndef XP_MACOSX
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#if defined(XP_WIN32) || defined(XP_OS2)
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".section .drectve\n\t"
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".ascii \" -export:NS_InvokeByIndex_P\"\n\t"
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".text\n\t"
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#elif !defined(XP_MACOSX)
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".size " SYMBOL_UNDERSCORE "NS_InvokeByIndex_P, . -" SYMBOL_UNDERSCORE "NS_InvokeByIndex_P\n\t"
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#endif
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);
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@ -47,32 +47,44 @@ LIBRARY_NAME = xptcmd
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EXPORT_LIBRARY = ../..
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MOZILLA_INTERNAL_API = 1
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#
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# The default is this buildable, but non-functioning code.
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#
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ifdef GNU_CXX
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CPPSRCS = \
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../unix/xptcinvoke_gcc_x86_unix.cpp \
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xptcstubs.cpp \
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$(NULL)
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LOCAL_INCLUDES = -I$(srcdir)/../unix
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ifneq ($(TARGET_CPU),x86_64)
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DEFINES += -DMOZ_USE_STDCALL -DMOZ_NEED_LEADING_UNDERSCORE
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endif
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else
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ifneq ($(OS_TEST),x86_64)
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# FIXME: bug 413019
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OS_COMPILE_CXXFLAGS += -GL-
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endif
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CPPSRCS = xptcinvoke.cpp xptcstubs.cpp
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endif
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LOCAL_INCLUDES += -I$(srcdir)/../../../../xptinfo/src
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include $(topsrcdir)/config/config.mk
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ifneq ($(TARGET_CPU),x86_64)
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ifeq ($(TARGET_CPU),x86_64)
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ifndef GNU_CXX
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# FIXME: bug 413019
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OS_COMPILE_CXXFLAGS += -GL-
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CPPSRCS := xptcinvoke.cpp xptcstubs.cpp
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else #!GNU_CXX
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CPPSRCS := xptcinvoke_x86_gnu.cpp xptcstubs.cpp
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endif #!GNU_CXX
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else # !x86_64
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ifndef GNU_CXX
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CPPSRCS := xptcinvoke_x86_64.cpp xptcstubs_x86_64.cpp
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CPPSRCS := xptcinvoke_x86_64.cpp xptcstubs_x86_64.cpp
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ASFILES := xptcinvoke_asm_x86_64.asm xptcstubs_asm_x86_64.asm
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else #!GNU_CXX
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CPPSRCS := xptcinvoke_x86_64.cpp xptcstubs_x86_64_gnu.cpp
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CPPSRCS := xptcinvoke_x86_64.cpp xptcstubs_x86_64_gnu.cpp
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ASFILES := xptcinvoke_asm_x86_64_gnu.s
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endif #!GNU_CXX
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endif #!x86_64
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endif
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# we don't want the shared lib, but we want to force the creation of a static lib.
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FORCE_STATIC_LIB = 1
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@ -1,139 +0,0 @@
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Mark Mentovai <mark@moxienet.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/* Platform specific code to invoke XPCOM methods on native objects */
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#include "xptcprivate.h"
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extern "C" {
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void __attribute__ ((__used__)) __attribute__ ((regparm(3)))
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invoke_copy_to_stack(PRUint32 paramCount, nsXPTCVariant* s, PRUint32* d)
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{
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for(PRUint32 i = paramCount; i >0; i--, d++, s++)
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{
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if(s->IsPtrData())
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{
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*((void**)d) = s->ptr;
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continue;
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}
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switch(s->type)
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{
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case nsXPTType::T_I8 : *((PRInt8*) d) = s->val.i8; break;
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case nsXPTType::T_I16 : *((PRInt16*) d) = s->val.i16; break;
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case nsXPTType::T_I32 : *((PRInt32*) d) = s->val.i32; break;
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case nsXPTType::T_I64 : *((PRInt64*) d) = s->val.i64; d++; break;
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case nsXPTType::T_U8 : *((PRUint8*) d) = s->val.u8; break;
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case nsXPTType::T_U16 : *((PRUint16*)d) = s->val.u16; break;
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case nsXPTType::T_U32 : *((PRUint32*)d) = s->val.u32; break;
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case nsXPTType::T_U64 : *((PRUint64*)d) = s->val.u64; d++; break;
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case nsXPTType::T_FLOAT : *((float*) d) = s->val.f; break;
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case nsXPTType::T_DOUBLE : *((double*) d) = s->val.d; d++; break;
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case nsXPTType::T_BOOL : *((bool*) d) = s->val.b; break;
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case nsXPTType::T_CHAR : *((char*) d) = s->val.c; break;
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case nsXPTType::T_WCHAR : *((wchar_t*) d) = s->val.wc; break;
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default:
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// all the others are plain pointer types
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*((void**)d) = s->val.p;
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break;
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}
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}
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}
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} // extern "C"
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/*
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EXPORT_XPCOM_API(nsresult)
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NS_InvokeByIndex_P(nsISupports* that, PRUint32 methodIndex,
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PRUint32 paramCount, nsXPTCVariant* params);
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Each param takes at most two 4-byte words.
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It doesn't matter if we push too many words, and calculating the exact
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amount takes time.
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that = ebp + 0x08
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methodIndex = ebp + 0x0c
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paramCount = ebp + 0x10
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params = ebp + 0x14
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*/
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__asm__ (
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".text\n\t"
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/* alignment here seems unimportant here; this was 16, now it's 2 which
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is what xptcstubs uses. */
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".align 2\n\t"
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".globl _NS_InvokeByIndex_P\n\t"
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"_NS_InvokeByIndex_P:\n\t"
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"pushl %ebp\n\t"
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"movl %esp, %ebp\n\t"
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"movl 0x10(%ebp), %eax\n\t"
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"leal 0(,%eax,8),%edx\n\t"
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/* set up call frame for method. */
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"subl %edx, %esp\n\t" /* make room for params. */
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/* Align to maximum x86 data size: 128 bits == 16 bytes == XMM register size.
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* This is to avoid protection faults where SSE+ alignment of stack pointer
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* is assumed and required, e.g. by GCC4's -ftree-vectorize option.
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*/
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"andl $0xfffffff0, %esp\n\t" /* drop(?) stack ptr to 128-bit align */
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/* $esp should be aligned to a 16-byte boundary here (note we include an
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* additional 4 bytes in a later push instruction). This will ensure $ebp
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* in the function called below is aligned to a 0x8 boundary. SSE instructions
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* like movapd/movdqa expect memory operand to be aligned on a 16-byte
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* boundary. The GCC compiler will generate the memory operand using $ebp
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* with an 8-byte offset.
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*/
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"subl $0xc, %esp\n\t" /* lower again; push/call below will re-align */
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"movl %esp, %ecx\n\t" /* ecx = d */
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"movl 8(%ebp), %edx\n\t" /* edx = this */
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"pushl %edx\n\t" /* push this. esp % 16 == 0 */
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"movl 0x14(%ebp), %edx\n\t"
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"call _invoke_copy_to_stack\n\t"
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"movl 0x08(%ebp), %ecx\n\t" /* 'that' */
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"movl (%ecx), %edx\n\t"
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"movl 0x0c(%ebp), %eax\n\t" /* function index */
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"leal (%edx,%eax,4), %edx\n\t"
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"call *(%edx)\n\t"
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"movl %ebp, %esp\n\t"
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"popl %ebp\n\t"
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"ret\n"
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".section .drectve\n\t"
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".ascii \" -export:NS_InvokeByIndex_P\"\n\t"
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".text\n\t"
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);
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