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From: Adham Masarwah <adham@mellanox.com>
To: Bruce Richardson <bruce.richardson@intel.com>,
	"Menon, Ranjit" <ranjit.menon@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	Omar Cardona <ocardona@microsoft.com>,
	Harini Ramakrishnan <Harini.Ramakrishnan@microsoft.com>,
	Jeffrey Tippet <Jeffrey.Tippet@microsoft.com>,
	"Kadam, Pallavi" <pallavi.kadam@intel.com>,
	Yohad Tor <yohadt@mellanox.com>,
	Rani Sharoni <ranish@mellanox.com>,
	Tal Shnaiderman <talshn@mellanox.com>
Subject: Re: [dpdk-dev] Generating Debug information in Windows using Clang (PDB files)
Date: Tue, 21 May 2019 13:41:06 +0000	[thread overview]
Message-ID: <VI1PR05MB58219D542682B783B488B557C4070@VI1PR05MB5821.eurprd05.prod.outlook.com> (raw)
In-Reply-To: <20190521082211.GA1354@bricha3-MOBL.ger.corp.intel.com>


>From: Bruce Richardson <bruce.richardson@intel.com> 
>Sent: Tuesday, May 21, 2019 11:22 AM
>
>On Mon, May 20, 2019 at 07:02:22PM +0100, Menon, Ranjit wrote:
>>    Adham…
>> 
>>    I don’t think we debugged using clang compiled code for Hello world –
>>    mainly because it was only a “helloworld” application and we didn’t
>>    quite need any debugging!:-)
>> 
>> 
>>    I found this link:
>>    [1]https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fblog.llvm.org%2F2017%2F08%2Fllvm-on-windows-now-supports-pdb-debug&amp;data=02%7C01%7Cadham%40mellanox.com%7Cea97cb9cae684d72bbed08d6ddc57192%7Ca652971c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C636940237422999520&amp;sdata=2PxSjEyx%2BXatdDKMtVcXFlWQ5jnBM9nK2782jnRg1BA%3D&amp;reserved=0.
>>    html
>> 
>>    …which says to use the following:
>> 
>>     Here are two simple ways to test out this new functionality:
>>     1. Have clang-cl invoke lld automatically
>> 
>>         clang-cl -fuse-ld=lld -Z7 -MTd hello.cpp
>>     2. Invoke clang-cl and lld separately.
>> 
>>    clang-cl -c -Z7 -MTd -o hello.obj hello.cpp
>> 
>>    lld-link -debug hello.obj
>> 
>>    Can you try it with just the -Z7 option?
>> 
>> 
>>    I’m also adding some persons from Microsoft to this thread, hoping they
>>    can help…
>> 
>> 
>>    +Harini +Omar +Jeffrey
>> 
>> 
>>    ranjit m.
>> 
>Part of the issue may be that we use clang, rather than clang-cl on windows.
>
>/Bruce

I did a small test to check clang vs clang-cl, the compiled binary and the PDB file from the Clang-cl seems working fine in WinDbg.
The problem we have that the meson.build files are not compatible with clang-cl, and the meson build command is failing.
This is the first error:
config\x86\meson.build:23:1: ERROR: Problem encountered: SSE4.2 instruction set is required for DPDK.
Please set the machine type to "nehalem" or "corei7" or higher value

/Adham

  reply	other threads:[~2019-05-21 13:41 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-20 10:27 Adham Masarwah
2019-05-20 18:02 ` Menon, Ranjit
2019-05-21  8:22   ` Bruce Richardson
2019-05-21 13:41     ` Adham Masarwah [this message]
2019-05-21 13:52       ` Bruce Richardson
2019-05-21 14:33         ` Adham Masarwah
2019-06-04  8:43           ` Thomas Monjalon

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