<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="Generator" content="Microsoft Word 15 (filtered medium)"> <style></style> </head> <body lang="EN-US" link="blue" vlink="purple"> <div class="WordSection1"> Yes. For Gcc and Clang, we can use –MMD –MF <filename.deps> to generate custom name dependency file for each source file. For example, gcc main.c –MMD –MF main.deps. <o:p></o:p> <o:p> </o:p> For MSVC and Intel compiler, there is a build option /showIncludes which makes compiler print the dependency files on stdout but not a file. The build tool will capture the message from stdout and generate .deps files on file system. The format will be the same as GCC generate.<o:p></o:p> <o:p> </o:p> Thanks,<o:p></o:p> Bob<o:p></o:p> <o:p> </o:p> <div> <div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in"> From: afish@apple.com [mailto:afish@apple.com] Sent: Tuesday, October 29, 2019 1:19 AM To: devel@edk2.groups.io; Yao, Jiewen <jiewen.yao@intel.com> Cc: Feng, Bob C <bob.c.feng@intel.com>; Ryszard Knop <ryszard.knop@linux.intel.com> Subject: Re: [edk2-devel] [Patch 0/1] BaseTools: Using compiler to generate source code dependency files.<o:p></o:p> </div> </div> <o:p> </o:p> <div> The .d is the default file name extension used by GCC for dependency files. Given the dependency files are in the build output and the makefiles reference them explicitly I'm not sure there is going to be lots of confusion. <o:p></o:p> </div> <div> <o:p> </o:p> </div> <div> But I think it is likely the default dependency file name is mostly just a convenience in constructing the makefiles, since if you use a custom name each invocation has to do string operations to create a file with a custom extension. Given our makefiles are generated by a tool this is probably not really an issue for us. <o:p></o:p> </div> <div> <o:p> </o:p> </div> <div> Does Visual Studio have the concept of a dependency file? If yes what suffix does that use, as I guess we could use that? I guess the dependency handling could just be some XML data in some larger Visual Studio meta data....<o:p></o:p> </div> <div> <o:p> </o:p> </div> <div> GCC/clang flags around dependencies. <o:p></o:p> </div> <div> <o:p> </o:p> </div> <div> -MD<o:p></o:p> </div> <a name="index-MD"></a><samp>-MD</samp> is equivalent to <samp>-M -MF </samp><var>file</var>, except that <samp>-E</samp> is not implied. The driver determines <var>file</var> based on whether an <samp>-o</samp> option is given. If it is, the driver uses its argument but with a suffix of <samp>.d</samp>, otherwise it takes the name of the input file, removes any directory components and suffix, and applies a <samp>.d</samp> suffix.<o:p></o:p> If <samp>-MD</samp> is used in conjunction with <samp>-E</samp>, any <samp>-o</samp> switch is understood to specify the dependency output file (see <a href="https://gcc.gnu.org/onlinedocs/gcc/Preprocessor-Options.html#dashMF">-MF</a>), but if used without <samp>-E</samp>, each <samp>-o</samp> is understood to specify a target object file.<o:p></o:p> Since <samp>-E</samp> is not implied, <samp>-MD</samp> can be used to generate a dependency output file as a side effect of the compilation process<o:p></o:p> <div> <o:p> </o:p> </div> <div> <o:p> </o:p> </div> <div> <code>-MF </code><var>file</var><o:p></o:p> <a name="index-MF"></a>When used with <samp>-M</samp> or <samp>-MM</samp>, specifies a file to write the dependencies to. If no <samp>-MF</samp> switch is given the preprocessor sends the rules to the same place it would send preprocessed output.<o:p></o:p> When used with the driver options <samp>-MD</samp> or <samp>-MMD</samp>, <samp>-MF</samp> overrides the default dependency output file.<o:p></o:p> If <var>file</var> is <samp>-</samp>, then the dependencies are written to <samp>stdout</samp>.<o:p></o:p> </div> <div> <o:p> </o:p> </div> <div> Thanks,<o:p></o:p> </div> <div> <o:p> </o:p> </div> <div> Andrew Fish<o:p></o:p> </div> <div> <o:p></o:p> <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"> <div> On Oct 28, 2019, at 8:03 AM, Yao, Jiewen <<a href="mailto:jiewen.yao@intel.com">jiewen.yao@intel.com</a>> wrote:<o:p></o:p> </div> <o:p> </o:p> <div> I think we need avoid confusing for future. I don’t believe .d is good choice, since it is a known conflict. Thank you Yao Jiewen <o:p></o:p> <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"> -----Original Message----- From: <a href="mailto:devel@edk2.groups.io">devel@edk2.groups.io</a> <<a href="mailto:devel@edk2.groups.io">devel@edk2.groups.io</a>> On Behalf Of Bob Feng Sent: Monday, October 28, 2019 10:57 PM To: Ryszard Knop <<a href="mailto:ryszard.knop@linux.intel.com">ryszard.knop@linux.intel.com</a>>; <a href="mailto:devel@edk2.groups.io">devel@edk2.groups.io</a> Subject: Re: [edk2-devel] [Patch 0/1] BaseTools: Using compiler to generate source code dependency files. Thanks for your comment. I think .d file should be fine since edk2 does not support D language. Thanks, Bob -----Original Message----- From: Ryszard Knop <<a href="mailto:ryszard.knop@linux.intel.com">ryszard.knop@linux.intel.com</a>> Sent: Monday, October 28, 2019 8:24 PM To: <a href="mailto:devel@edk2.groups.io">devel@edk2.groups.io</a>; Feng, Bob C <<a href="mailto:bob.c.feng@intel.com">bob.c.feng@intel.com</a>> Subject: Re: [edk2-devel] [Patch 0/1] BaseTools: Using compiler to generate source code dependency files. Just a quick note: .d files are used by the D language. You might want to use an extension like .deps instead. On 2019-10-28 11:47, Bob Feng wrote: <o:p></o:p> <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"> BZ: <a href="https://bugzilla.tianocore.org/show_bug.cgi?id=2311">https://bugzilla.tianocore.org/show_bug.cgi?id=2311</a> To support incremental build, build tool generates the dependent header file for each of source file. This procedure is done in AutoGen phase. The build tool goes through all the source file and header file and use regular expression to find out all the dependent files for a source file. This procedure is much time-consuming. And this method can't handle the MACRO in #include, for example #include PATH(xxx.h). This patch is going to use compiler to generate dependent files. This method will be faster and more accurate. The basic idea is: 1. In AutoGen phase, build tool add "!Include deps.txt" into Makefile instead of defining COMMON_DEPS list. 2. During the Make phase, the compilers, Trim and C preprocessor generate dependent files, .d file, for each source file. 3. After Make, The build tool combines the .d files and generate a file deps.txt which list all the included files for a module. 4. Each source file will depends on the Module's includes files. The difference with orignial behavior is that if the user change the source file, build tool will only build that source file in incremental build; while if the user change a module's header file, build tool will build the whole module in incremental build. In this way, the time of AutoGen phase will be reduced much. And since we will use c preprocessor to handle #include, the MACRO will be handled well and the final dependent files will be more accurate. Feng, Bob C (1): BaseTools: Using compiler to generate source code dependency files. BaseTools/Conf/build_rule.template | 89 ++++++----- BaseTools/Conf/tools_def.template | 138 +++++++++--------- BaseTools/Source/Python/AutoGen/GenMake.py | 73 +++------ .../Source/Python/AutoGen/IncludesAutoGen.py | 99 +++++++++++++ BaseTools/Source/Python/Trim/Trim.py | 113 +++++++++++--- BaseTools/Source/Python/build/build.py | 58 ++++++-- 6 files changed, 378 insertions(+), 192 deletions(-) create mode 100644 BaseTools/Source/Python/AutoGen/IncludesAutoGen.py<o:p></o:p> </blockquote> <o:p> </o:p> </blockquote> <o:p></o:p> </div> </blockquote> </div> <o:p> </o:p> </div> </body> </html> <div width="1" style="color:white;clear:both">_._,_._,_</div> <hr> Groups.io Links: You receive all messages sent to this group. <a target="_blank" href="https://edk2.groups.io/g/devel/message/49568">View/Reply Online (#49568)</a> | | <a target="_blank" href="https://groups.io/mt/38877548/1813853">Mute This Topic</a> | <a href="https://edk2.groups.io/g/devel/post">New Topic</a> <a href="https://edk2.groups.io/g/devel/editsub/1813853">Your Subscription</a> | <a href="mailto:devel+owner@edk2.groups.io">Contact Group Owner</a> | <a href="https://edk2.groups.io/g/devel/unsub">Unsubscribe</a> [edk2-devel-archive@redhat.com] <div width="1" style="color:white;clear:both">_._,_._,_</div>