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Add -fvisibility options to significantly reduce binary sizes. 

Switch to boost::context for all platforms, almost.
Please try your platform by commenting out fcontext.s in common/CMakeLists.txt.
This commit is contained in:
Dick Hollenbeck 2013-12-30 11:53:12 -06:00
parent cae7a6ffb8
commit f9ab5d2c61
6 changed files with 697 additions and 74 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
CMakeLists.txt
View File

@ -114,6 +114,14 @@ if( CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang" )
set( CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -DNDEBUG" )
set( CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -DNDEBUG" )
if( GXX_HAS_VISIBILITY_FLAG )
set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden" )
endif()
if( GXX_HAS_VISIBILITY_INLINES_FLAG )
set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility-inlines-hidden" )
endif()
if( MINGW )
set( CMAKE_EXE_LINKER_FLAGS_RELEASE "-s" )
@ -132,8 +140,8 @@ if( CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang" )
# Disable this response file for includes ( See Windows-GNU.cmake module )
if( WIN32 AND MSYS AND NOT CMAKE_CROSSCOMPILING )
# fixme: it is needed only with MSYS+MINGW32? or always under MINGW
if (${CMAKE_SIZEOF_VOID_P} MATCHES 4)
set(CMAKE_CXX_USE_RESPONSE_FILE_FOR_INCLUDES 0)
if( ${CMAKE_SIZEOF_VOID_P} MATCHES 4 )
set( CMAKE_CXX_USE_RESPONSE_FILE_FOR_INCLUDES 0 )
endif()
endif()
@ -160,13 +168,13 @@ if( CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang" )
if( GCC_VERSION VERSION_GREATER 4.8 OR GCC_VERSION VERSION_EQUAL 4.8 )
set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused-local-typedefs" )
endif()
if( APPLE )
if( APPLE )
set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D__ASSERTMACROS__" )
set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__ASSERTMACROS__" )
endif()
endif( CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
endif( CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang" )
if( KICAD_KEEPCASE )
add_definitions( -DKICAD_KEEPCASE )
@ -251,7 +259,7 @@ include( Functions )
include( ExternalProject )
if ( APPLE )
if ( APPLE )
set( KICAD_BUILD_STATIC ON)
if( NOT CMAKE_CXX_COMPILER )
@ -286,13 +294,13 @@ if ( KICAD_BUILD_STATIC )
set( PKG_CONFIG_EXECUTABLE "${PKGCONFIG_ROOT}/bin/pkg-config")
include( download_glew )
set( GLEW_GLEW_LIBRARY "${GLEW_ROOT}/lib/libGLEW.a")
set( GLEW_INCLUDE_DIR "${GLEW_ROOT}/include")
set( GLEW_INCLUDE_DIR "${GLEW_ROOT}/include")
include( download_pixman )
set( PIXMAN_LIBRARY "${PIXMAN_ROOT}/lib/libpixman-1.a")
include( download_libpng )
include( download_cairo )
set( CAIRO_INCLUDE_DIR "${CAIRO_ROOT}/include/cairo")
set( CAIRO_LIBRARY "${CAIRO_ROOT}/lib/libcairo.a")
set( CAIRO_LIBRARY "${CAIRO_ROOT}/lib/libcairo.a")
endif( KICAD_BUILD_STATIC )
#####################

61
CMakeModules/PerformFeatureChecks.cmake
View File

@ -36,17 +36,21 @@
# Consider it a benchmark when writing your own feature tests.
#
macro(perform_feature_checks)
macro( perform_feature_checks )
include(CheckIncludeFile)
#include(CheckFunctionExists)
include(CheckLibraryExists)
include(CheckSymbolExists)
include(CheckIncludeFileCXX)
include(CheckCXXSymbolExists)
include(CheckCXXSourceCompiles)
include( CheckIncludeFile )
#include( CheckFunctionExists )
include( CheckLibraryExists )
include( CheckSymbolExists )
include( CheckIncludeFileCXX )
include( CheckCXXSymbolExists )
include( CheckCXXSourceCompiles )
include( CheckCXXCompilerFlag )
check_include_file("malloc.h" HAVE_MALLOC_H)
check_cxx_compiler_flag( -fvisibility=hidden GXX_HAS_VISIBILITY_FLAG )
check_cxx_compiler_flag( -fvisibility-inlines-hidden GXX_HAS_VISIBILITY_INLINES_FLAG )
check_include_file( "malloc.h" HAVE_MALLOC_H )
# FIXME: Visual C++ does not support the "not" keyword natively. It is
# defined as a macro in <iso646.h>. There should be a cmake macro
@ -54,7 +58,7 @@ macro(perform_feature_checks)
# then check for <iso646.h> and include it. Although it doesn't
# appear to cause any problems with other compilers, that doesn't
# mean won't fail somewhere down the line.
check_include_file("iso646.h" HAVE_ISO646_H)
check_include_file( "iso646.h" HAVE_ISO646_H )
# The STDINT header file test is required because MinGW under Windows
# doesn't define HAVE_STDINT_H even though it does have it.
@ -62,7 +66,7 @@ macro(perform_feature_checks)
# We need to add it to the global compiler definitions as config.h is not
# included in pyport.h which is where the problem ocurrs without this
# fix.
check_include_file("stdint.h" HAVE_STDINT_H)
check_include_file( "stdint.h" HAVE_STDINT_H )
if( HAVE_STDINT_H )
add_definitions( -DHAVE_STDINT_H )
@ -73,40 +77,41 @@ macro(perform_feature_checks)
# re-introduce this.
# check_include_file("strings.h" HAVE_STRINGS_H)
check_symbol_exists(strcasecmp "string.h" HAVE_STRCASECMP)
check_symbol_exists(strcasecmp "strings.h" HAVE_STRCASECMP)
check_symbol_exists(strncasecmp "string.h" HAVE_STRNCASECMP)
check_symbol_exists(strncasecmp "strings.h" HAVE_STRNCASECMP)
check_symbol_exists( strcasecmp "string.h" HAVE_STRCASECMP )
check_symbol_exists( strcasecmp "strings.h" HAVE_STRCASECMP )
check_symbol_exists( strncasecmp "string.h" HAVE_STRNCASECMP )
check_symbol_exists( strncasecmp "strings.h" HAVE_STRNCASECMP )
check_symbol_exists( strtok_r "string.h" HAVE_STRTOKR )
# Some platforms define malloc and free in malloc.h instead of stdlib.h.
check_symbol_exists(malloc "stdlib.h" MALLOC_IN_STDLIB_H)
check_symbol_exists( malloc "stdlib.h" MALLOC_IN_STDLIB_H )
# Check for functions in math.h.
check_include_file("math.h" HAVE_MATH_H)
check_include_file( "math.h" HAVE_MATH_H )
# Check for functions in C++ cmath.
check_include_file_cxx(cmath HAVE_CXX_CMATH)
check_cxx_symbol_exists(asinh cmath HAVE_CMATH_ASINH )
check_cxx_symbol_exists(acosh cmath HAVE_CMATH_ACOSH )
check_cxx_symbol_exists(atanh cmath HAVE_CMATH_ATANH )
check_include_file_cxx( cmath HAVE_CXX_CMATH )
check_cxx_symbol_exists( asinh cmath HAVE_CMATH_ASINH )
check_cxx_symbol_exists( acosh cmath HAVE_CMATH_ACOSH )
check_cxx_symbol_exists( atanh cmath HAVE_CMATH_ATANH )
# CMakes check_cxx_symbol_exists() doesn't work for templates so we must create a
# small program to verify isinf() exists in cmath.
check_cxx_source_compiles( "#include <cmath>\nint main(int argc, char** argv)\n{\n (void)argv;\n std::isinf(1.0); (void)argc;\n return 0;\n}\n" HAVE_CMATH_ISINF )
#check_symbol_exists(clock_gettime "time.h" HAVE_CLOCK_GETTIME) non-standard library, does not work
check_library_exists(rt clock_gettime "" HAVE_CLOCK_GETTIME)
#check_symbol_exists( clock_gettime "time.h" HAVE_CLOCK_GETTIME ) non-standard library, does not work
check_library_exists( rt clock_gettime "" HAVE_CLOCK_GETTIME )
# HAVE_GETTIMEOFDAY is already in use within 2.9 wxWidgets, so use HAVE_GETTIMEOFDAY_FUNC
check_symbol_exists(gettimeofday "sys/time.h" HAVE_GETTIMEOFDAY_FUNC)
check_symbol_exists( gettimeofday "sys/time.h" HAVE_GETTIMEOFDAY_FUNC )
# Check for Posix getc_unlocked() for improved performance over getc(). Fall back to
# getc() on platforms where getc_unlocked() doesn't exist.
check_symbol_exists(getc_unlocked "stdio.h" HAVE_FGETC_NOLOCK)
check_symbol_exists( getc_unlocked "stdio.h" HAVE_FGETC_NOLOCK )
# Generate config.h.
configure_file(${PROJECT_SOURCE_DIR}/CMakeModules/config.h.cmake
${CMAKE_BINARY_DIR}/config.h)
configure_file( ${PROJECT_SOURCE_DIR}/CMakeModules/config.h.cmake
${CMAKE_BINARY_DIR}/config.h
)
endmacro(perform_feature_checks)
endmacro( perform_feature_checks )

46
CMakeModules/download_boost.cmake
View File

@ -41,14 +41,9 @@ set( BOOST_ROOT "${PROJECT_SOURCE_DIR}/boost_root" )
# Chosen libraries are based on AVHTTP requirements, and possibly
# unit_test_framework for its own worth.
# tool_manager.cpp -> coroutine -> context (_jump_fcontext) (on OSX)
if( APPLE )
set( BOOST_EXTRA_LIBS "context" )
else()
set( BOOST_EXTRA_LIBS "" )
endif()
set( BOOST_LIBS_BUILT
${BOOST_EXTRA_LIBS}
context
#coroutine
date_time
#exception
@ -98,9 +93,9 @@ string( REPLACE "unit_test_framework" "test" boost_libs_list "${BOOST_LIBS_BUILT
set( BOOST_TOOLSET "toolset=gcc" )
if( KICAD_BUILD_STATIC )
set(BOOST_LINKTYPE "link=static")
set( BOOST_LINKTYPE "link=static" )
else()
set( BOOST_LINKTYPE "#link=static")
unset( BOOST_LINKTYPE )
endif()
@ -129,14 +124,15 @@ else()
unset( b2_libs )
endif()
if( APPLE )
# I set this to being compatible with wxWidgets
# wxWidgets still using libstdc++ (gcc), meanwhile OSX
# has switched to libc++ (llvm) by default
set(BOOST_CXXFLAGS "cxxflags=-mmacosx-version-min=10.5 -fno-common" )
set(BOOST_LINKFLAGS "linkflags=-mmacosx-version-min=10.5 -fno-common" )
set(BOOST_TOOLSET "toolset=darwin" )
set( BOOST_CXXFLAGS "cxxflags=-mmacosx-version-min=10.5 -fno-common" )
set( BOOST_LINKFLAGS "linkflags=-mmacosx-version-min=10.5 -fno-common" )
set( BOOST_TOOLSET "toolset=darwin" )
if( CMAKE_CXX_COMPILER_ID MATCHES "Clang" )
set(BOOST_CXXFLAGS "${BOOST_CXXFLAGS} -fno-lto" )
set(BOOST_LINKFLAGS "${BOOST_LINKFLAGS} -fno-lto" )
@ -146,9 +142,9 @@ if( APPLE )
if( (CMAKE_OSX_ARCHITECTURES MATCHES "386" OR CMAKE_OSX_ARCHITECTURES MATCHES "ppc ") AND
(CMAKE_OSX_ARCHITECTURES MATCHES "64"))
message("-- BOOST found 32/64 Address Model")
message( "-- BOOST found 32/64 Address Model" )
set(BOOST_ADDRESSMODEL "address-model=32_64")
set( BOOST_ADDRESSMODEL "address-model=32_64" )
endif()
if( (CMAKE_OSX_ARCHITECTURES MATCHES "x86_64" OR CMAKE_OSX_ARCHITECTURES MATCHES "386") AND
@ -166,9 +162,9 @@ if( APPLE )
set(BOOST_ARCHITECTURE "architecture=ppc")
endif()
set(BOOST_CFLAGS "${BOOST_CFLAGS} -arch ${CMAKE_OSX_ARCHITECTURES}" )
set(BOOST_CXXFLAGS "${BOOST_CXXFLAGS} -arch ${CMAKE_OSX_ARCHITECTURES}" )
set(BOOST_LINKFLAGS "${BOOST_LINKFLAGS} -arch ${CMAKE_OSX_ARCHITECTURES}" )
set( BOOST_CFLAGS "${BOOST_CFLAGS} -arch ${CMAKE_OSX_ARCHITECTURES}" )
set( BOOST_CXXFLAGS "${BOOST_CXXFLAGS} -arch ${CMAKE_OSX_ARCHITECTURES}" )
set( BOOST_LINKFLAGS "${BOOST_LINKFLAGS} -arch ${CMAKE_OSX_ARCHITECTURES}" )
endif()
endif()
@ -187,9 +183,21 @@ ExternalProject_Add( boost
# PATCH_COMMAND continuation (any *_COMMAND here can be continued with COMMAND):
COMMAND bzr patch -p0 "${PROJECT_SOURCE_DIR}/patches/boost_minkowski.patch"
COMMAND bzr patch -p0 "${PROJECT_SOURCE_DIR}/patches/boost_cstdint.patch"
COMMAND bzr patch -p0 "${PROJECT_SOURCE_DIR}/patches/boost_macosx_x86.patch" #https://svn.boost.org/trac/boost/ticket/8266
# tell bzr about new files added by last patch so above "bzr revert" works:
COMMAND bzr add libs/context/src/asm/jump_i386_x86_64_sysv_macho_gas.S
COMMAND bzr add libs/context/src/asm/make_i386_x86_64_sysv_macho_gas.S
COMMAND bzr patch -p0 "${PROJECT_SOURCE_DIR}/patches/boost_macosx_x86_build.patch" #https://svn.boost.org/trac/boost/ticket/8266
COMMAND bzr patch -p0 "${PROJECT_SOURCE_DIR}/patches/boost_mingw.patch" #https://svn.boost.org/trac/boost/ticket/7262
# tell bzr about new files added by last patch so above "bzr revert" works:
COMMAND bzr add libs/context/src/asm/make_i386_ms_pe_gas.S
COMMAND bzr add libs/context/src/asm/jump_i386_ms_pe_gas.S
COMMAND bzr add libs/context/src/asm/make_x86_64_ms_pe_gas.S
COMMAND bzr add libs/context/src/asm/jump_x86_64_ms_pe_gas.S
# [Mis-]use this step to erase all the boost headers and libraries before
# replacing them below.
UPDATE_COMMAND ${CMAKE_COMMAND} -E remove_directory "${BOOST_ROOT}"
@ -240,8 +248,8 @@ endif()
set( boost_libs "" )
set_boost_lib_names( "${BOOST_LIBS_BUILT}" boost_libs )
set( Boost_LIBRARIES ${boost_libs} CACHE FILEPATH "Boost libraries directory" )
set( Boost_INCLUDE_DIR "${BOOST_INCLUDE}" CACHE FILEPATH "Boost include directory" )
set( Boost_LIBRARIES ${boost_libs} )
set( Boost_INCLUDE_DIR "${BOOST_INCLUDE}" )
mark_as_advanced( Boost_LIBRARIES Boost_INCLUDE_DIR )

31
common/CMakeLists.txt
View File

@ -1,4 +1,4 @@
include_directories(BEFORE ${INC_BEFORE})
include_directories( BEFORE ${INC_BEFORE} )
include_directories(
./dialogs
./dialog_about
@ -62,7 +62,7 @@ if(WIN32 AND MSYS)
add_definitions(-DGLEW_STATIC)
endif(WIN32 AND MSYS)
set(COMMON_ABOUT_DLG_SRCS
set( COMMON_ABOUT_DLG_SRCS
dialog_about/AboutDialog_main.cpp
dialog_about/dialog_about.cpp
dialog_about/dialog_about_base.cpp
@ -78,7 +78,7 @@ set(COMMON_ABOUT_DLG_SRCS
dialogs/dialog_page_settings_base.cpp
)
set(COMMON_PAGE_LAYOUT_SRCS
set( COMMON_PAGE_LAYOUT_SRCS
page_layout/title_block_shapes.cpp
page_layout/class_worksheet_dataitem.cpp
page_layout/class_worksheet_layout.cpp
@ -88,7 +88,7 @@ set(COMMON_PAGE_LAYOUT_SRCS
page_layout/page_layout_reader.cpp
)
set(COMMON_SRCS
set( COMMON_SRCS
${COMMON_ABOUT_DLG_SRCS}
${COMMON_PAGE_LAYOUT_SRCS}
base_struct.cpp
@ -153,17 +153,14 @@ if( NOT HAVE_STRTOKR )
set( COMMON_SRCS ${COMMON_SRCS} strtok_r.c )
endif()
enable_language(C CXX ASM)
set_source_files_properties(system/fcontext.s PROPERTIES COMPILE_FLAGS "-x assembler-with-cpp")
set(COMMON_SRCS
set( COMMON_SRCS
${COMMON_SRCS}
view/view.cpp
view/view_item.cpp
view/view_group.cpp
math/math_util.cpp
system/fcontext.s
tool/tool_base.cpp
tool/tool_manager.cpp
@ -179,9 +176,19 @@ set(COMMON_SRCS
geometry/shape_index.cpp
)
add_library(common STATIC ${COMMON_SRCS})
# TODO: remove this whole if test and remove the sytem/*.s sources once every platform is tested with
# boost::context library
if( UNIX AND NOT APPLE )
else()
enable_language( C CXX ASM )
set_source_files_properties( system/fcontext.s PROPERTIES COMPILE_FLAGS "-x assembler-with-cpp" )
list( APPEND COMMON_SRCS system/fcontext.s )
endif()
set(PCB_COMMON_SRCS
add_library( common STATIC ${COMMON_SRCS} )
set( PCB_COMMON_SRCS
base_screen.cpp
eda_text.cpp
class_page_info.cpp
@ -235,7 +242,7 @@ set(PCB_COMMON_SRCS
fp_lib_table.cpp
)
set(PCB_COMMON_SRCS
set( PCB_COMMON_SRCS
${PCB_COMMON_SRCS}
../pcbnew/pcb_painter.cpp
)
@ -245,7 +252,7 @@ set_source_files_properties( ${PCB_COMMON_SRCS} PROPERTIES
COMPILE_DEFINITIONS "PCBNEW"
)
add_library(pcbcommon STATIC ${PCB_COMMON_SRCS})
add_library( pcbcommon STATIC ${PCB_COMMON_SRCS} )
# auto-generate specctra_lexer.h and specctra_keywords.cpp
make_lexer(

13
demos/CMakeLists.txt
View File

@ -1,6 +1,7 @@
install(DIRECTORY complex_hierarchy ecc83 electric flat_hierarchy
kit-dev-coldfire-xilinx_5213 interf_u microwave
pic_programmer pspice "sonde xilinx" test_xil_95108 video
DESTINATION ${KICAD_DEMOS}
COMPONENT resources
PATTERN ".svn" EXCLUDE)
install( DIRECTORY complex_hierarchy
ecc83 electric flat_hierarchy
kit-dev-coldfire-xilinx_5213 interf_u microwave
pic_programmer pspice "sonde xilinx" test_xil_95108 video
DESTINATION ${KICAD_DEMOS}
COMPONENT resources
)

594
patches/boost_mingw.patch Normal file
View File

@ -0,0 +1,594 @@
--- libs/context/build/Jamfile.v2.orig 2013-03-03 13:39:59.684868916 +0100
+++ libs/context/build/Jamfile.v2 2013-03-03 15:09:09.893232829 +0100
@@ -282,6 +284,17 @@
;
alias asm_context_sources
+ : asm/make_i386_ms_pe_gas.S
+ asm/jump_i386_ms_pe_gas.S
+ dummy.cpp
+ : <address-model>32
+ <architecture>x86
+ <binary-format>pe
+ <target-os>windows
+ <toolset>gcc
+ ;
+
+alias asm_context_sources
: asm/make_i386_ms_pe_masm.asm
asm/jump_i386_ms_pe_masm.asm
dummy.cpp
@@ -379,6 +392,17 @@
;
alias asm_context_sources
+ : asm/make_x86_64_ms_pe_gas.S
+ asm/jump_x86_64_ms_pe_gas.S
+ dummy.cpp
+ : <address-model>64
+ <architecture>x86
+ <binary-format>pe
+ <target-os>windows
+ <toolset>gcc
+ ;
+
+alias asm_context_sources
: asm/make_x86_64_ms_pe_masm.asm
asm/jump_x86_64_ms_pe_masm.asm
dummy.cpp
--- libs/context/src/asm/make_i386_ms_pe_gas.S.orig 2013-03-03 13:41:28.645502113 +0100
+++ libs/context/src/asm/make_i386_ms_pe_gas.S 2013-03-03 14:39:27.590477410 +0100
@@ -0,0 +1,115 @@
+/*
+ Copyright Oliver Kowalke 2009.
+ Copyright Thomas Sailer 2013.
+ Distributed under the Boost Software License, Version 1.0.
+ (See accompanying file LICENSE_1_0.txt or copy at
+ http://www.boost.org/LICENSE_1_0.txt)
+*/
+
+/********************************************************************
+ * *
+ * -------------------------------------------------------------- *
+ * | 0 | 1 | 2 | 3 | 4 | 5 | *
+ * -------------------------------------------------------------- *
+ * | 0h | 04h | 08h | 0ch | 010h | 014h | *
+ * -------------------------------------------------------------- *
+ * | EDI | ESI | EBX | EBP | ESP | EIP | *
+ * -------------------------------------------------------------- *
+ * -------------------------------------------------------------- *
+ * | 6 | 7 | 8 | | *
+ * -------------------------------------------------------------- *
+ * | 018h | 01ch | 020h | | *
+ * -------------------------------------------------------------- *
+ * | sp | size | limit | | *
+ * -------------------------------------------------------------- *
+ * -------------------------------------------------------------- *
+ * | 9 | | *
+ * -------------------------------------------------------------- *
+ * | 024h | | *
+ * -------------------------------------------------------------- *
+ * |fc_execpt| | *
+ * -------------------------------------------------------------- *
+ * -------------------------------------------------------------- *
+ * | 10 | | *
+ * -------------------------------------------------------------- *
+ * | 028h | | *
+ * -------------------------------------------------------------- *
+ * |fc_strage| | *
+ * -------------------------------------------------------------- *
+ * -------------------------------------------------------------- *
+ * | 11 | 12 | | *
+ * -------------------------------------------------------------- *
+ * | 02ch | 030h | | *
+ * -------------------------------------------------------------- *
+ * | fc_mxcsr|fc_x87_cw| | *
+ * -------------------------------------------------------------- *
+ * *
+ * *****************************************************************/
+
+.file "make_i386_ms_pe_gas.S"
+.text
+.p2align 4,,15
+.globl _make_fcontext
+.def _make_fcontext; .scl 2; .type 32; .endef
+_make_fcontext:
+ movl 0x04(%esp), %eax /* load 1. arg of make_fcontext, pointer to context stack (base) */
+ leal -0x34(%eax),%eax /* reserve space for fcontext_t at top of context stack */
+
+ /* shift address in EAX to lower 16 byte boundary */
+ /* == pointer to fcontext_t and address of context stack */
+ andl $-16, %eax
+
+ movl 0x04(%esp), %ecx /* load 1. arg of make_fcontext, pointer to context stack (base) */
+ movl %ecx, 0x18(%eax) /* save address of context stack (base) in fcontext_t */
+ movl 0x08(%esp), %edx /* load 2. arg of make_fcontext, context stack size */
+ movl %edx, 0x1c(%eax) /* save context stack size in fcontext_t */
+ negl %edx /* negate stack size for LEA instruction (== substraction) */
+ leal (%ecx,%edx),%ecx /* compute bottom address of context stack (limit) */
+ movl %ecx, 0x20(%eax) /* save address of context stack (limit) in fcontext_t */
+ movl 0x0c(%esp), %ecx /* load 3. arg of make_fcontext, pointer to context function */
+ movl %ecx, 0x14(%eax) /* save address of context function in fcontext_t */
+
+ stmxcsr 0x02c(%eax) /* save MMX control word */
+ fnstcw 0x030(%eax) /* save x87 control word */
+
+ leal -0x1c(%eax),%edx /* reserve space for last frame and seh on context stack, (ESP - 0x4) % 16 == 0 */
+ movl %edx, 0x10(%eax) /* save address in EDX as stack pointer for context function */
+
+ movl $finish, %ecx /* abs address of finish */
+ movl %ecx, (%edx) /* save address of finish as return address for context function */
+ /* entered after context function returns */
+
+ /* traverse current seh chain to get the last exception handler installed by Windows */
+ /* note that on Windows Server 2008 and 2008 R2, SEHOP is activated by default */
+ /* the exception handler chain is tested for the presence of ntdll.dll!FinalExceptionHandler */
+ /* at its end by RaiseException all seh andlers are disregarded if not present and the */
+ /* program is aborted */
+ movl %fs:(0x18), %ecx /* load NT_TIB into ECX */
+
+walk:
+ movl (%ecx), %edx /* load 'next' member of current SEH into EDX */
+ incl %edx /* test if 'next' of current SEH is last (== 0xffffffff) */
+ jz found
+ decl %edx
+ xchgl %ecx, %edx /* exchange content; ECX contains address of next SEH */
+ jmp walk /* inspect next SEH */
+
+found:
+ movl 0x04(%ecx), %ecx /* load 'handler' member of SEH == address of last SEH handler installed by Windows */
+ movl 0x10(%eax), %edx /* load address of stack pointer for context function */
+ movl %ecx, 0x18(%edx) /* save address in ECX as SEH handler for context */
+ movl $0xffffffff,%ecx /* set ECX to -1 */
+ movl %ecx, 0x14(%edx) /* save ECX as next SEH item */
+ leal 0x14(%edx), %ecx /* load address of next SEH item */
+ movl %ecx, 0x24(%eax) /* save next SEH */
+
+ ret
+
+finish:
+ /* ESP points to same address as ESP on entry of context function + 0x4 */
+ xorl %eax, %eax
+ movl %eax, (%esp) /* exit code is zero */
+ call __exit /* exit application */
+ hlt
+
+.def __exit; .scl 2; .type 32; .endef /* standard C library function */
--- libs/context/src/asm/jump_i386_ms_pe_gas.S.orig 2013-03-03 13:41:34.332670479 +0100
+++ libs/context/src/asm/jump_i386_ms_pe_gas.S 2013-03-03 14:35:35.634611625 +0100
@@ -0,0 +1,108 @@
+/*
+ Copyright Oliver Kowalke 2009.
+ Copyright Thomas Sailer 2013.
+ Distributed under the Boost Software License, Version 1.0.
+ (See accompanying file LICENSE_1_0.txt or copy at
+ http://www.boost.org/LICENSE_1_0.txt)
+*/
+
+/********************************************************************
+ * *
+ * -------------------------------------------------------------- *
+ * | 0 | 1 | 2 | 3 | 4 | 5 | *
+ * -------------------------------------------------------------- *
+ * | 0h | 04h | 08h | 0ch | 010h | 014h | *
+ * -------------------------------------------------------------- *
+ * | EDI | ESI | EBX | EBP | ESP | EIP | *
+ * -------------------------------------------------------------- *
+ * -------------------------------------------------------------- *
+ * | 6 | 7 | 8 | | *
+ * -------------------------------------------------------------- *
+ * | 018h | 01ch | 020h | | *
+ * -------------------------------------------------------------- *
+ * | sp | size | limit | | *
+ * -------------------------------------------------------------- *
+ * -------------------------------------------------------------- *
+ * | 9 | | *
+ * -------------------------------------------------------------- *
+ * | 024h | | *
+ * -------------------------------------------------------------- *
+ * |fc_execpt| | *
+ * -------------------------------------------------------------- *
+ * -------------------------------------------------------------- *
+ * | 10 | | *
+ * -------------------------------------------------------------- *
+ * | 028h | | *
+ * -------------------------------------------------------------- *
+ * |fc_strage| | *
+ * -------------------------------------------------------------- *
+ * -------------------------------------------------------------- *
+ * | 11 | 12 | | *
+ * -------------------------------------------------------------- *
+ * | 02ch | 030h | | *
+ * -------------------------------------------------------------- *
+ * | fc_mxcsr|fc_x87_cw| | *
+ * -------------------------------------------------------------- *
+ * *
+ * *****************************************************************/
+
+.file "jump_i386_ms_pe_gas.S"
+.text
+.p2align 4,,15
+.globl _jump_fcontext
+.def _jump_fcontext; .scl 2; .type 32; .endef
+_jump_fcontext:
+ movl 0x04(%esp), %ecx /* load address of the first fcontext_t arg */
+ movl %edi, (%ecx) /* save EDI */
+ movl %esi, 0x04(%ecx) /* save ESI */
+ movl %ebx, 0x08(%ecx) /* save EBX */
+ movl %ebp, 0x0c(%ecx) /* save EBP */
+
+ movl %fs:(0x18), %edx /* load NT_TIB */
+ movl (%edx), %eax /* load current SEH exception list */
+ movl %eax, 0x24(%ecx) /* save current exception list */
+ movl 0x04(%edx), %eax /* load current stack base */
+ movl %eax, 0x18(%ecx) /* save current stack base */
+ movl 0x08(%edx), %eax /* load current stack limit */
+ movl %eax, 0x20(%ecx) /* save current stack limit */
+ movl 0x10(%edx), %eax /* load fiber local storage */
+ movl %eax, 0x28(%ecx) /* save fiber local storage */
+
+ leal 0x04(%esp), %eax /* exclude the return address */
+ movl %eax, 0x10(%ecx) /* save as stack pointer */
+ movl (%esp), %eax /* load return address */
+ movl %eax, 0x14(%ecx) /* save return address */
+
+ movl 0x08(%esp), %edx /* load address of the second fcontext_t arg */
+ movl (%edx), %edi /* restore EDI */
+ movl 0x04(%edx), %esi /* restore ESI */
+ movl 0x08(%edx), %ebx /* restore EBX */
+ movl 0x0c(%edx), %ebp /* restore EBP */
+
+ movl 0x10(%esp), %eax /* check if fpu enve preserving was requested */
+ testl %eax, %eax
+ je 1f
+
+ stmxcsr 0x2c(%ecx) /* save MMX control word */
+ fnstcw 0x30(%ecx) /* save x87 control word */
+ ldmxcsr 0x2c(%edx) /* restore MMX control word */
+ fldcw 0x30(%edx) /* restore x87 control word */
+1:
+ movl %edx, %ecx
+ movl %fs:(0x18), %edx /* load NT_TIB */
+ movl 0x24(%ecx), %eax /* load SEH exception list */
+ movl %eax, (%edx) /* restore next SEH item */
+ movl 0x18(%ecx), %eax /* load stack base */
+ movl %eax, 0x04(%edx) /* restore stack base */
+ movl 0x20(%ecx), %eax /* load stack limit */
+ movl %eax, 0x08(%edx) /* restore stack limit */
+ movl 0x28(%ecx), %eax /* load fiber local storage */
+ movl %eax, 0x10(%edx) /* restore fiber local storage */
+
+ movl 0x0c(%esp), %eax /* use third arg as return value after jump */
+
+ movl 0x10(%ecx), %esp /* restore ESP */
+ movl %eax, 0x04(%esp) /* use third arg as first arg in context function */
+ movl 0x14(%ecx), %ecx /* fetch the address to return to */
+
+ jmp *%ecx /* indirect jump to context */
--- libs/context/src/asm/make_x86_64_ms_pe_gas.S.orig 2013-03-03 13:43:03.137299031 +0100
+++ libs/context/src/asm/make_x86_64_ms_pe_gas.S 2013-03-03 14:54:16.036775106 +0100
@@ -0,0 +1,132 @@
+/*
+ Copyright Oliver Kowalke 2009.
+ Copyright Thomas Sailer 2013.
+ Distributed under the Boost Software License, Version 1.0.
+ (See accompanying file LICENSE_1_0.txt or copy at
+ http://www.boost.org/LICENSE_1_0.txt)
+*/
+
+/****************************************************************************************
+ * *
+ * ---------------------------------------------------------------------------------- *
+ * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x0 | 0x4 | 0x8 | 0xc | 0x10 | 0x14 | 0x18 | 0x1c | *
+ * ---------------------------------------------------------------------------------- *
+ * | R12 | R13 | R14 | R15 | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x20 | 0x24 | 0x28 | 0x2c | 0x30 | 0x34 | 0x38 | 0x3c | *
+ * ---------------------------------------------------------------------------------- *
+ * | RDI | RSI | RBX | RBP | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 16 | 17 | 18 | 19 | | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x40 | 0x44 | 0x48 | 0x4c | | *
+ * ---------------------------------------------------------------------------------- *
+ * | RSP | RIP | | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 20 | 21 | 22 | 23 | 24 | 25 | | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x50 | 0x54 | 0x58 | 0x5c | 0x60 | 0x64 | | *
+ * ---------------------------------------------------------------------------------- *
+ * | sp | size | limit | | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 26 | 27 | | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x68 | 0x6c | | *
+ * ---------------------------------------------------------------------------------- *
+ * | fbr_strg | | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x70 | 0x74 | 0x78 | 0x7c | 0x80 | 0x84 | 0x88 | 0x8c | *
+ * ---------------------------------------------------------------------------------- *
+ * | fc_mxcsr|fc_x87_cw| fc_xmm | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x90 | 0x94 | 0x98 | 0x9c | 0xa0 | 0xa4 | 0xa8 | 0xac | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0xb0 | 0xb4 | 0xb8 | 0xbc | 0xc0 | 0xc4 | 0xc8 | 0xcc | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0xd0 | 0xd4 | 0xd8 | 0xdc | 0xe0 | 0xe4 | 0xe8 | 0xec | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0xf0 | 0xf4 | 0xf8 | 0xfc | 0x100 | 0x104 | 0x108 | 0x10c | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x110 | 0x114 | 0x118 | 0x11c | 0x120 | 0x124 | 0x128 | 0x12c | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * *
+ * *************************************************************************************/
+
+.file "make_x86_64_ms_pe_gas.S"
+.text
+.p2align 4,,15
+.globl make_fcontext
+.def make_fcontext; .scl 2; .type 32; .endef
+.seh_proc make_fcontext
+make_fcontext:
+.seh_endprologue
+ leaq -0x130(%rcx),%rax /* reserve space for fcontext_t at top of context stack */
+
+ /* shift address in RAX to lower 16 byte boundary */
+ /* == pointer to fcontext_t and address of context stack */
+ andq $-16, %rax
+
+ movq %r8, 0x48(%rax) /* save address of context function in fcontext_t */
+ movq %rdx, 0x58(%rax) /* save context stack size in fcontext_t */
+ movq %rcx, 0x50(%rax) /* save address of context stack pointer (base) in fcontext_t */
+
+ negq %rdx /* negate stack size for LEA instruction (== substraction) */
+ leaq (%rcx,%rdx),%rcx /* compute bottom address of context stack (limit) */
+ movq %rcx, 0x60(%rax) /* save bottom address of context stack (limit) in fcontext_t */
+
+ stmxcsr 0x70(%rax) /* save MMX control and status word */
+ fnstcw 0x74(%rax) /* save x87 control word */
+
+ leaq -0x28(%rax),%rdx /* reserve 32byte shadow space + return address on stack, (RSP - 0x8) % 16 == 0 */
+ movq %rdx, 0x40(%rax) /* save address in RDX as stack pointer for context function */
+
+ leaq finish(%rip),%rcx /* compute abs address of label finish */
+ movq %rcx,(%rdx) /* save address of finish as return address for context function */
+ /* entered after context function returns */
+
+ ret
+
+finish:
+ /* RSP points to same address as RSP on entry of context function + 0x8 */
+ xorq %rcx, %rcx /* exit code is zero */
+ call _exit /* exit application */
+ hlt
+.seh_endproc
+
+.def _exit; .scl 2; .type 32; .endef /* standard C library function */
--- libs/context/src/asm/jump_x86_64_ms_pe_gas.S.orig 2013-03-03 13:42:57.753139784 +0100
+++ libs/context/src/asm/jump_x86_64_ms_pe_gas.S 2013-03-03 15:06:08.269856857 +0100
@@ -0,0 +1,189 @@
+/*
+ Copyright Oliver Kowalke 2009.
+ Copyright Thomas Sailer 2013.
+ Distributed under the Boost Software License, Version 1.0.
+ (See accompanying file LICENSE_1_0.txt or copy at
+ http://www.boost.org/LICENSE_1_0.txt)
+*/
+
+/****************************************************************************************
+ * *
+ * ---------------------------------------------------------------------------------- *
+ * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x0 | 0x4 | 0x8 | 0xc | 0x10 | 0x14 | 0x18 | 0x1c | *
+ * ---------------------------------------------------------------------------------- *
+ * | R12 | R13 | R14 | R15 | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x20 | 0x24 | 0x28 | 0x2c | 0x30 | 0x34 | 0x38 | 0x3c | *
+ * ---------------------------------------------------------------------------------- *
+ * | RDI | RSI | RBX | RBP | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 16 | 17 | 18 | 19 | | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x40 | 0x44 | 0x48 | 0x4c | | *
+ * ---------------------------------------------------------------------------------- *
+ * | RSP | RIP | | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 20 | 21 | 22 | 23 | 24 | 25 | | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x50 | 0x54 | 0x58 | 0x5c | 0x60 | 0x64 | | *
+ * ---------------------------------------------------------------------------------- *
+ * | sp | size | limit | | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 26 | 27 | | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x68 | 0x6c | | *
+ * ---------------------------------------------------------------------------------- *
+ * | fbr_strg | | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x70 | 0x74 | 0x78 | 0x7c | 0x80 | 0x84 | 0x88 | 0x8c | *
+ * ---------------------------------------------------------------------------------- *
+ * | fc_mxcsr|fc_x87_cw| fc_xmm | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x90 | 0x94 | 0x98 | 0x9c | 0xa0 | 0xa4 | 0xa8 | 0xac | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0xb0 | 0xb4 | 0xb8 | 0xbc | 0xc0 | 0xc4 | 0xc8 | 0xcc | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0xd0 | 0xd4 | 0xd8 | 0xdc | 0xe0 | 0xe4 | 0xe8 | 0xec | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0xf0 | 0xf4 | 0xf8 | 0xfc | 0x100 | 0x104 | 0x108 | 0x10c | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x110 | 0x114 | 0x118 | 0x11c | 0x120 | 0x124 | 0x128 | 0x12c | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * *
+ * *************************************************************************************/
+
+.file "jump_x86_64_ms_pe_gas.S"
+.text
+.p2align 4,,15
+.globl jump_fcontext
+.def jump_fcontext; .scl 2; .type 32; .endef
+.seh_proc jump_fcontext
+jump_fcontext:
+.seh_endprologue
+ movq %r12, (%rcx) /* save R12 */
+ movq %r13, 0x08(%rcx) /* save R13 */
+ movq %r14, 0x10(%rcx) /* save R14 */
+ movq %r15, 0x18(%rcx) /* save R15 */
+ movq %rdi, 0x20(%rcx) /* save RDI */
+ movq %rsi, 0x28(%rcx) /* save RSI */
+ movq %rbx, 0x30(%rcx) /* save RBX */
+ movq %rbp, 0x38(%rcx) /* save RBP */
+
+ movq %gs:(0x30), %r10 /* load NT_TIB */
+ movq 0x08(%r10), %rax /* load current stack base */
+ movq %rax, 0x50(%rcx) /* save current stack base */
+ movq 0x10(%r10), %rax /* load current stack limit */
+ movq %rax, 0x60(%rcx) /* save current stack limit */
+ movq 0x18(%r10), %rax /* load fiber local storage */
+ movq %rax, 0x68(%rcx) /* save fiber local storage */
+
+ testq %r9, %r9
+ je 1f
+
+ stmxcsr 0x70(%rcx) /* save MMX control and status word */
+ fnstcw 0x74(%rcx) /* save x87 control word */
+ /* save XMM storage */
+ /* save start address of SSE register block in R10 */
+ leaq 0x90(%rcx), %r10
+ /* shift address in R10 to lower 16 byte boundary */
+ /* == pointer to SEE register block */
+ andq $-16, %r10
+
+ movaps %xmm6, (%r10)
+ movaps %xmm7, 0x10(%r10)
+ movaps %xmm8, 0x20(%r10)
+ movaps %xmm9, 0x30(%r10)
+ movaps %xmm10, 0x40(%r10)
+ movaps %xmm11, 0x50(%r10)
+ movaps %xmm12, 0x60(%r10)
+ movaps %xmm13, 0x70(%r10)
+ movaps %xmm14, 0x80(%r10)
+ movaps %xmm15, 0x90(%r10)
+
+ ldmxcsr 0x70(%rdx) /* restore MMX control and status word */
+ fldcw 0x74(%rdx) /* restore x87 control word */
+ /* restore XMM storage */
+ /* save start address of SSE register block in R10 */
+ leaq 0x90(%rdx), %r10
+ /* shift address in R10 to lower 16 byte boundary */
+ /* == pointer to SEE register block */
+ andq $-16, %r10
+
+ movaps (%r10), %xmm6
+ movaps 0x10(%r10), %xmm7
+ movaps 0x20(%r10), %xmm8
+ movaps 0x30(%r10), %xmm9
+ movaps 0x40(%r10), %xmm10
+ movaps 0x50(%r10), %xmm11
+ movaps 0x60(%r10), %xmm12
+ movaps 0x70(%r10), %xmm13
+ movaps 0x80(%r10), %xmm14
+ movaps 0x90(%r10), %xmm15
+
+1:
+ leaq 0x08(%rsp), %rax /* exclude the return address */
+ movq %rax, 0x40(%rcx) /* save as stack pointer */
+ movq (%rsp), %rax /* load return address */
+ movq %rax, 0x48(%rcx) /* save return address */
+
+ movq (%rdx), %r12 /* restore R12 */
+ movq 0x08(%rdx), %r13 /* restore R13 */
+ movq 0x10(%rdx), %r14 /* restore R14 */
+ movq 0x18(%rdx), %r15 /* restore R15 */
+ movq 0x20(%rdx), %rdi /* restore RDI */
+ movq 0x28(%rdx), %rsi /* restore RSI */
+ movq 0x30(%rdx), %rbx /* restore RBX */
+ movq 0x38(%rdx), %rbp /* restore RBP */
+
+ movq %gs:(0x30), %r10 /* load NT_TIB */
+ movq 0x50(%rdx), %rax /* load stack base */
+ movq %rax, 0x08(%r10) /* restore stack base */
+ movq 0x60(%rdx), %rax /* load stack limit */
+ movq %rax, 0x10(%r10) /* restore stack limit */
+ movq 0x68(%rdx), %rax /* load fiber local storage */
+ movq %rax, 0x18(%r10) /* restore fiber local storage */
+
+ movq 0x40(%rdx), %rsp /* restore RSP */
+ movq 0x48(%rdx), %r10 /* fetch the address to returned to */
+
+ movq %r8, %rax /* use third arg as return value after jump */
+ movq %r8, %rcx /* use third arg as first arg in context function */
+
+ jmp *%r10 /* indirect jump to caller */
+.seh_endproc