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[2a00:1098:0:86:1000:23:0:2]) by smtp.gmail.com with ESMTPSA id m15sm18018958wrq.97.2019.11.11.08.36.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Nov 2019 08:36:43 -0800 (PST) Date: Mon, 11 Nov 2019 16:36:41 +0000 From: "Leif Lindholm" To: "Gao, Liming" Cc: "devel@edk2.groups.io" , Andrew Fish , "Ni, Ray" , "Justen, Jordan L" , "Shi, Steven" Subject: Re: [edk2-devel] [Patch v3 10/11] EmulatorPkg: Enable CLANG9 tool chain Message-ID: <20191111163641.GE16820@bivouac.eciton.net> References: <1571295356-11608-11-git-send-email-liming.gao@intel.com> <734D49CCEBEEF84792F5B80ED585239D5C325BB0@SHSMSX104.ccr.corp.intel.com> <34BE6669-004C-48AD-A09D-FE1A8475ABE0@apple.com> <4A89E2EF3DFEDB4C8BFDE51014F606A14E51EC84@SHSMSX104.ccr.corp.intel.com> <4A89E2EF3DFEDB4C8BFDE51014F606A14E534DF8@SHSMSX104.ccr.corp.intel.com> <20191107171947.GU16820@bivouac.eciton.net> <36A93358-FADB-4201-9C3F-AFFA2D7D4F0C@apple.com> <20191107183717.GY16820@bivouac.eciton.net> <4A89E2EF3DFEDB4C8BFDE51014F606A14E539909@SHSMSX104.ccr.corp.intel.com> MIME-Version: 1.0 In-Reply-To: <4A89E2EF3DFEDB4C8BFDE51014F606A14E539909@SHSMSX104.ccr.corp.intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit On Fri, Nov 08, 2019 at 01:49:30AM +0000, Gao, Liming wrote: > Andrew and Leif: > Thanks for your comment. CLANG9 is different from CLANG38. And, CLANG9 will support LLVM9 or the above. > So, this tool chain should have the specific word for its purpose, and remove the version 9 to avoid the confuse. > > I prefer the tool chain name as CLANGPE or CLANGPDB. CLANGPE may be better. Now, CLANG9 tool chain > build rule family just uses CLANGPE. CLANGPE lets user know this tool chain generates PE/COFF image. > And, PE/COFF image debug symbol is PDB. So, PE also means PDB. My preference would also be CLANGPE. > Last, I just review the changes. Tool chain name update is not big. If you accept CLANGPE as tool chain name, > I will send the patch soon to catch 201911 stable tag. I have no problem with this. Thanks! / Leif > Thanks > Liming > >-----Original Message----- > >From: devel@edk2.groups.io [mailto:devel@edk2.groups.io] On Behalf Of Leif > >Lindholm > >Sent: Friday, November 08, 2019 2:37 AM > >To: Andrew Fish > >Cc: devel@edk2.groups.io; Gao, Liming ; Ni, Ray > >; Justen, Jordan L > >Subject: Re: [edk2-devel] [Patch v3 10/11] EmulatorPkg: Enable CLANG9 tool > >chain > > > >Hi Andrew, > > > >Yeah, I'm pretty easy with regards to what we change it to. > >Although if we're bikeshedding, I would prefer not using _ in the > >toolchain profile name. > > > >I'm ... optimistic ... it won't break any of my existing scripts, but > >since the build system uses it as a > >__ separator, it would > >be nice if we didn't risk confusion there. > > > >(I would be totally happy with PECLANG, CLANGPE, PDBCLANG, CLANGPDB or > >something along those lines.) > > > >Regards, > > > >Leif > > > >On Thu, Nov 07, 2019 at 11:54:04AM -0600, Andrew Fish wrote: > >> Leif, > >> > >> I think I proposed CLANG_PDB or CLANG_PECOFF. I seem to like > >CLANG_PDB as assuming the PDE debugging experience is awesome/exists > >on Linux and macOS is not a given. > >> > >> Thanks, > >> > >> Andrew Fish > >> > >> > On Nov 7, 2019, at 11:19 AM, Leif Lindholm > >wrote: > >> > > >> > Oops, sorry, missed this in search. > >> > > >> > On Wed, Oct 30, 2019 at 03:43:44PM +0000, Liming Gao wrote: > >> >> Andrew: > >> >> > >> >> I prefer to keep short CLANG9 as the tool chain name. I add wiki > >> >> page > >> >> https://github.com/tianocore/tianocore.github.io/wiki/CLANG9-Tools- > >Chain > >> >> to introduce it. > >> > > >> > Why should users be expected to go and read documentation in order to > >> > learn that fundamental and incompatible changes to output and debug > >> > format has been made as part of what looks like a simple version bump? > >> > > >> >> And, we have CLANG38 tool chain. It generates ELF > >> >> image and DWARF debug symbol format. It can work with LLVM 9.0 > >> >> release. Current tool chain tag name includes compiler name and > >> >> version. There is no specific info in the tool chain name. The > >> >> developer can get the more tool chain information from wiki page. > >> > > >> > We aleady have the problem that people think they need to use GCC5 to > >> > build EDK2 since that is the highest named GCC toolchain profile. > >> > > >> > Let's not make this situation *worse* by setting up a multidimensional > >> > feature matrix, based off random numerical values. > >> > > >> > So say that we next have a pressing need to create a new toolchain > >> > profile for clang 10, using the old ELF mechanism. Are you then > >> > suggesting we set up a table on said wiki page where people have to go > >> > and look up what the object and debug formats are for each CLANG## > >> > toolchain profile? > >> > > >> > And what if you then end up needing to do the same for the PDB > >> > flavour? > >> > > >> >> CLANG9 is designed to support Emulator for Windows host only. > >> > > >> > Which is why it makes no sense to name it as a successor of > >> > CLANG38. > >> > > >> >> CLANG38 may be used for Emulator in Linux or Mac. I don’t > >> >> try it before. > >> >> > >> >> CLANG9 goal is to align the same compiler in the different host > >> >> development environment. It can replace VS or GCC compiler. On > >> >> Windows Host, I verify VS debugger for the source level debug. On > >> >> Linux host, I have not verified llvm debugger. I will investigate > >> >> the debugger solution for OVMF in Linux host. > >> > > >> > We are not asking you to throw out this toolchain profile. > >> > > >> > We are saying that since the functionality it provides is completely > >> > unrelated to that of CLANG38, it should not be named in a way that > >> > suggests it is merely a revision update. > >> > > >> > / > >> > Leif > >> > > >> >> Thanks > >> >> Liming > >> >> From: afish@apple.com > >> >> Sent: Saturday, October 26, 2019 2:45 AM > >> >> To: devel@edk2.groups.io; Gao, Liming > >> >> Cc: Ni, Ray ; Justen, Jordan L > > > >> >> Subject: Re: [edk2-devel] [Patch v3 10/11] EmulatorPkg: Enable CLANG9 > >tool chain > >> >> > >> >> Liming, > >> >> > >> >> Sorry I missed this mail. Thanks for the info! I was doing some research > >into this too and now I think I finally understand. I think the name for the tool > >chain really confused me and we should think about changing the name. > >> >> > >> >> From what I understand CLANG9 means produce PE/COFF directly and > >used the PDB debugging format. I see from the llvm site that the linker can > >produce PDB directly as you mention. This all makes sense to me now as LLVM > >tries to make it easy to be a drop in replacement for VC++ or GCC. So this tool > >chain is designed to be able to cross build a "Windows App" on a Linux or > >macOS. It also looks like the llvm debugger, lldb, is lagging in its support for > >PDB based debugging. > >> >> > >> >> > >> >> Anyway I think Leif and I agree the toolchain name is very confusing. I'd > >rather see it called CLANG9_WIN or CLANG_PDB. > >> >> > >> >> > >> >> On Oct 18, 2019, at 7:27 AM, Liming Gao > >> wrote: > >> >> > >> >> Andrew: > >> >> Here is the cover letter on CLANG9 introduction. > >https://edk2.groups.io/g/devel/message/49157 > >> >> > >> >> 1) Yes. CLANG9 tool chain is added to directly generate PE/COFF image > >(EFI image). > >> >> This tool chain uses LLVM clang C compiler and lld linker, generates > >PE/COFF > >> >> image and PDB compatible debug symbol format. Now, it supports > >IA32/X64 Archs. > >> >> LLVM clang C compiler and lld linker are the standalone tool set. They > >don’t depend other lib to generate PE/COFF image. > >> >> > >> >> 2) Yes. CLANG9 is the cross OS tool chain. It can work on > >Windows/Linux/Mac host OS. > >> >> LLVM LLD linker uses Windows style arguments. I verify CLANG9 for > >Ovmf3264 in Windows/Linux host OS. > >> >> > >> >> > >> >> On Linux can you source level debug Ovmf? > >> >> > >> >> > >> >> 3) This patch enables WinHost in Windows. It doesn’t enable UnixHost. > >Now, EmulatorPkg with CLANG9 only works on Windows Host. > >> >> This patch can make other modules pass build in Windows/Linux/Mac > >only if LLVM9 tool set is installed. > >> >> But, the generated image may not work on Linux/Mac. I agree below > >linker flags are specific to windows host. > >> >> So, I suggest to add the conditional statement of $(WIN_HOST_BUILD) > >== TRUE for them. > >> >> > >> >> > >> >> For the EmulatorPkg the Host is a native App for that OS you build on, but > >it seems like CLANG9 is targeted to build Windows Apps. I'm not sure but you > >might be able to override all the linker commands to build a native app, or just > >use the system linker for the Host? > >> >> > >> >> I'm not sure how well debugging will work mixing PDB and DWARF > >symbol formats? > >> >> > >> >> Thanks, > >> >> > >> >> Andrew Fish > >> >> > >> >> > >> >> > >> >> !if $(WIN_HOST_BUILD) == TRUE > >> >> GCC:*_CLANG9_*_DLINK_FLAGS = /ALIGN:4096 /FILEALIGN:4096 > >/SUBSYSTEM:CONSOLE > >> >> GCC:DEBUG_CLANG9_*_DLINK_FLAGS = > >/EXPORT:InitializeDriver=$(IMAGE_ENTRY_POINT) /BASE:0x10000 > >> >> GCC:NOOPT_CLANG9_*_DLINK_FLAGS = > >/EXPORT:InitializeDriver=$(IMAGE_ENTRY_POINT) /BASE:0x10000 > >> >> !endif > >> >> > >> >> Thanks > >> >> Liming > >> >> From: afish@apple.com > >> > >> >> Sent: Friday, October 18, 2019 1:15 AM > >> >> To: Ni, Ray > > >> >> Cc: Gao, Liming >; > >devel@edk2.groups.io; Justen, Jordan L > >> > >> >> Subject: Re: [Patch v3 10/11] EmulatorPkg: Enable CLANG9 tool chain > >> >> > >> >> Ray, > >> >> > >> >> Sorry I'm coming a little late to this and I'm confused. I have some > >questions? > >> >> 1) Does CLANG9 imply CLANGPE? > >> >> 2) Does CLANGPE work on Linux and macOS? Can you pass the Windows > >style arguments to CLANGPE linker on Linux and macOS? > >> >> 3) For the EmulatorPkg don't you have the extra requirement that > >compiler needs a standard C lib (or platform specific libs) to function? > >> >> a) GCC:*_CLANG9_*_DLINK_FLAGS in EmulatorPkg.dsc seems to > >imply the Linux and macOS systems will have a Windows SKD dir and a lot of > >Windows DLLs? Does all that come when you install CLANG9 when you install > >it on Linux or macOS? > >> >> > >> >> > >> >> > >> >> So I guess I'm asking is the linker really the same for CLANG9 on all > >systems? I guess the answer could be yes, but it seems the C lib for the Host > >App is still an App for that OS and is OS dependent? > >> >> > >> >> > >> >> > >> >> Sorry if I'm missing something fundamental and this is a dumb question. > >> >> > >> >> > >> >> > >> >> Thanks, > >> >> > >> >> > >> >> > >> >> Andrew Fish > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> On Oct 17, 2019, at 12:27 AM, Ni, Ray > >> wrote: > >> >> > >> >> Liming, > >> >> Emulator is using a generic SEC module. The host specific module is called > >"Host". > >> >> So I prefer to change the macro to "WIN_HOST_BUILD", with this change, > >Reviewed-by: Ray Ni > > >> >> > >> >> > >> >> > >> >> -----Original Message----- > >> >> From: Gao, Liming > > >> >> Sent: Thursday, October 17, 2019 2:56 PM > >> >> To: devel@edk2.groups.io > >> >> Cc: Justen, Jordan L > >>; Andrew > >Fish > >> >> >; Ni, Ray > >> > >> >> Subject: [Patch v3 10/11] EmulatorPkg: Enable CLANG9 tool chain > >> >> > >> >> BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1603 > >> >> 1. Add WIN_SEC_BUILD macro check for CLANG9 tool chain build -p > >> >> EmulatorPkg\EmulatorPkg.dsc -a IA32 -DWIN_SEC_BUILD=TRUE -t > >CLANG9 > >> >> build -p EmulatorPkg\EmulatorPkg.dsc -a X64 -DWIN_SEC_BUILD=TRUE -t > >> >> CLANG9 2. Append CLANG CC and LINK flags to generate windows HOST. > >> >> 3. Fix WinHost issue to call GetProcessAffinityMask() API. > >> >> The input parameter should be UINTN pointer instead of UINT32 pointer. > >> >> > >> >> Cc: Jordan Justen > >> > >> >> Cc: Andrew Fish > > >> >> Cc: Ray Ni > > >> >> Signed-off-by: Liming Gao > >> > >> >> --- > >> >> EmulatorPkg/Win/Host/WinHost.c | 6 +++--- > >> >> EmulatorPkg/EmulatorPkg.dsc | 7 ++++++- > >> >> EmulatorPkg/Win/Host/WinHost.inf | 6 ++++++ > >> >> 3 files changed, 15 insertions(+), 4 deletions(-) > >> >> > >> >> diff --git a/EmulatorPkg/Win/Host/WinHost.c > >> >> b/EmulatorPkg/Win/Host/WinHost.c index 9aba3c8959..e40ce32548 > >100644 > >> >> --- a/EmulatorPkg/Win/Host/WinHost.c > >> >> +++ b/EmulatorPkg/Win/Host/WinHost.c > >> >> @@ -356,7 +356,7 @@ Returns: > >> >> INTN > >> >> EFIAPI > >> >> main ( > >> >> - IN INTN Argc, > >> >> + IN INT Argc, > >> >> IN CHAR8 **Argv, > >> >> IN CHAR8 **Envp > >> >> ) > >> >> @@ -391,8 +391,8 @@ Returns: > >> >> VOID *SecFile; > >> >> CHAR16 *MemorySizeStr; > >> >> CHAR16 *FirmwareVolumesStr; > >> >> - UINT32 ProcessAffinityMask; > >> >> - UINT32 SystemAffinityMask; > >> >> + UINTN ProcessAffinityMask; > >> >> + UINTN SystemAffinityMask; > >> >> INT32 LowBit; > >> >> > >> >> // > >> >> diff --git a/EmulatorPkg/EmulatorPkg.dsc > >b/EmulatorPkg/EmulatorPkg.dsc > >> >> index 20f1187713..72532f5daf 100644 > >> >> --- a/EmulatorPkg/EmulatorPkg.dsc > >> >> +++ b/EmulatorPkg/EmulatorPkg.dsc > >> >> @@ -237,9 +237,10 @@ > >> >> > >> >> [Components] > >> >> !if "IA32" in $(ARCH) || "X64" in $(ARCH) > >> >> - !if "MSFT" in $(FAMILY) > >> >> + !if "MSFT" in $(FAMILY) || $(WIN_SEC_BUILD) == TRUE > >> >> ## > >> >> # Emulator, OS WIN application > >> >> + # CLANG9 is cross OS tool chain. It depends on WIN_SEC_BUILD > >macro. > >> >> ## > >> >> EmulatorPkg/Win/Host/WinHost.inf > >> >> !else > >> >> @@ -419,7 +420,11 @@ > >> >> > >> >> MSFT:DEBUG_*_*_CC_FLAGS = /Od /Oy- > >> >> MSFT:NOOPT_*_*_CC_FLAGS = /Od /Oy- > >> >> + GCC:DEBUG_CLANG9_*_CC_FLAGS =-O0 -Wno-unused-command- > >line- > >> >> argument > >> >> + -Wno-incompatible-pointer-types -Wno-enum-conversion > >> >> + -Wno-incompatible-pointer-types -Wno-sometimes-uninitialized > >> >> + -Wno-constant-conversion -Wno-main-return-type > >> >> > >> >> MSFT:*_*_*_DLINK_FLAGS = /ALIGN:4096 /FILEALIGN:4096 > >> >> /SUBSYSTEM:CONSOLE > >> >> MSFT:DEBUG_*_*_DLINK_FLAGS = > >> >> /EXPORT:InitializeDriver=$(IMAGE_ENTRY_POINT) /BASE:0x10000 > >> >> MSFT:NOOPT_*_*_DLINK_FLAGS = > >> >> /EXPORT:InitializeDriver=$(IMAGE_ENTRY_POINT) /BASE:0x10000 > >> >> + GCC:*_CLANG9_*_DLINK_FLAGS = /ALIGN:4096 /FILEALIGN:4096 > >> >> /SUBSYSTEM:CONSOLE > >> >> + GCC:DEBUG_CLANG9_*_DLINK_FLAGS = > >> >> + /EXPORT:InitializeDriver=$(IMAGE_ENTRY_POINT) /BASE:0x10000 > >> >> + GCC:NOOPT_CLANG9_*_DLINK_FLAGS = > >> >> + /EXPORT:InitializeDriver=$(IMAGE_ENTRY_POINT) /BASE:0x10000 > >> >> diff --git a/EmulatorPkg/Win/Host/WinHost.inf > >> >> b/EmulatorPkg/Win/Host/WinHost.inf > >> >> index 631d5a6470..1adca10d79 100644 > >> >> --- a/EmulatorPkg/Win/Host/WinHost.inf > >> >> +++ b/EmulatorPkg/Win/Host/WinHost.inf > >> >> @@ -95,3 +95,9 @@ > >> >> MSFT:*_VS2017_X64_DLINK_FLAGS = > >> >> /LIBPATH:"%VCToolsInstallDir%lib\x64" > >> >> /LIBPATH:"%UniversalCRTSdkDir%lib\%UCRTVersion%\ucrt\x64" > >> >> /LIBPATH:"%WindowsSdkDir%lib\%WindowsSDKLibVersion%\um\x64" > >> >> /NOLOGO /SUBSYSTEM:CONSOLE /NODEFAULTLIB /IGNORE:4086 /MAP > >> >> /OPT:REF /DEBUG /MACHINE:AMD64 /LTCG Kernel32.lib MSVCRTD.lib > >> >> vcruntimed.lib ucrtd.lib Gdi32.lib User32.lib Winmm.lib Advapi32.lib > >> >> MSFT:*_*_X64_ASM_FLAGS == /nologo /W3 /WX /c /Cx /Zd /W0 > >/Zi > >> >> MSFT:*_*_X64_ASMLINK_FLAGS == /link /nologo > >> >> + > >> >> + GCC:*_CLANG9_X64_DLINK_FLAGS == > >> >> /out:"$(BIN_DIR)\$(BASE_NAME).exe" /base:0x10000000 > >> >> /pdb:"$(BIN_DIR)\$(BASE_NAME).pdb" > >> >> /LIBPATH:"%UniversalCRTSdkDir%lib\%UCRTVersion%\ucrt\x64" > >> >> /LIBPATH:"%WindowsSdkDir%lib\%WindowsSDKLibVersion%\um\x64" > >> >> /LIBPATH:"%VCToolsInstallDir%lib\x64" /NOLOGO > >/SUBSYSTEM:CONSOLE > >> >> /NODEFAULTLIB /IGNORE:4086 /OPT:REF /DEBUG /MACHINE:AMD64 > >> >> Kernel32.lib MSVCRTD.lib vcruntimed.lib ucrtd.lib Gdi32.lib User32.lib > >> >> Winmm.lib Advapi32.lib /lldmap > >> >> /EXPORT:InitializeDriver=_ModuleEntryPoint > >> >> + GCC:*_CLANG9_X64_CC_FLAGS == -m64 -g -fshort-wchar > >> >> + -fno-strict-aliasing -Wall -c -include AutoGen.h -D > >> >> + _CRT_SECURE_NO_WARNINGS -Wnonportable-include-path -D > >UNICODE > >> >> -D > >> >> + _CRT_SECURE_NO_DEPRECATE > >> >> + > >> >> + GCC:*_CLANG9_IA32_DLINK_FLAGS == > >> >> /out:"$(BIN_DIR)\$(BASE_NAME).exe" /base:0x10000000 > >> >> /pdb:"$(BIN_DIR)\$(BASE_NAME).pdb" > >> >> /LIBPATH:"%UniversalCRTSdkDir%lib\%UCRTVersion%\ucrt\x86" > >> >> /LIBPATH:"%WindowsSdkDir%lib\%WindowsSDKLibVersion%\um\x86" > >> >> /LIBPATH:"%VCToolsInstallDir%ib\x86" /NOLOGO > >/SUBSYSTEM:CONSOLE > >> >> /NODEFAULTLIB /IGNORE:4086 /OPT:REF /DEBUG /MACHINE:I386 > >> >> Kernel32.lib MSVCRTD.lib vcruntimed.lib ucrtd.lib Gdi32.lib User32.lib > >> >> Winmm.lib Advapi32.lib /lldmap > >> >> /EXPORT:InitializeDriver=_ModuleEntryPoint > >> >> + GCC:*_CLANG9_IA32_CC_FLAGS == -m32 -g -fshort-wchar > >> >> + -fno-strict-aliasing -Wall -c -include AutoGen.h -D > >> >> + _CRT_SECURE_NO_WARNINGS -Wnonportable-include-path -D > >UNICODE > >> >> -D > >> >> + _CRT_SECURE_NO_DEPRECATE > >> >> -- > >> >> 2.13.0.windows.1 > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> > > >> > > >> > > >> > > > > >