Displaying 20 results from an estimated 4000 matches similar to: "[LLVMdev] Make BPF backend non-experimental?"
2015 Jun 04
2
[LLVMdev] [llvm] r239035 - Include BPF target in CMake builds.
On Thu, Jun 4, 2015 at 5:51 AM, Daniel Sanders
<daniel.sanders at imgtec.com> wrote:
> Author: dsanders
> Date: Thu Jun 4 07:51:20 2015
> New Revision: 239035
>
> Include BPF target in CMake builds.
>
> Modified:
> llvm/trunk/CMakeLists.txt
>
> --- llvm/trunk/CMakeLists.txt (original)
> +++ llvm/trunk/CMakeLists.txt Thu Jun 4 07:51:20 2015
> @@
2015 Jun 09
2
[LLVMdev] Make BPF backend non-experimental?
On 5 June 2015 at 19:46, Eric Christopher <echristo at gmail.com> wrote:
> 1) Alexei has been very active on the port, fixing problems unprompted
> 2) As one of the people who've had to had on it in the last few months it
> wasn't an issue to keep up to date with the other ports.
+1!
cheers,
--renato
2015 Aug 05
2
[LLVMdev] Cc llvmdev: Re: llvm bpf debug info. Re: [RFC PATCH v4 3/3] bpf: Introduce function for outputing data to perf event
Hi, Alexei
On 2015/7/30 1:13, Alexei Starovoitov wrote:
> On 7/29/15 2:38 AM, He Kuang wrote:
>> Hi, Alexei
>>
>> On 2015/7/28 10:18, Alexei Starovoitov wrote:
>>> On 7/25/15 3:04 AM, He Kuang wrote:
>>>> I noticed that for 64-bit elf format, the reloc sections have
>>>> 'Addend' in the entry, but there's no 'Addend' info
2016 Jun 16
2
[iovisor-dev] [PATCH, BPF 1/5] BPF: Use a provisional ELF e_machine value
On Wed, Jun 15, 2016 at 2:37 PM, Richard Henderson via iovisor-dev
<iovisor-dev at lists.iovisor.org> wrote:
> This same value for EM_BPF is being propagated to glibc,
> elfutils, and binutils.
great!
Can you share the link to glibc and the other patches?
> diff --git a/include/llvm/Support/ELF.h b/include/llvm/Support/ELF.h
> index 352fd8a..fb8ff71 100644
> ---
2015 Sep 10
2
how to link clang generated obj targeting BPF
Dear there,
I was trying to use clang to cross compile executable directly on my mac to
bpf ISA:
clang -target bpf-linux-gnu aaa.c
But I guess maybe the linker does not support BPF? (with -c clang can
generate unlinked objs)
Unexpected arch
UNREACHABLE executed at
llvm/tools/clang/lib/Driver/Tools.cpp:8113
Should I use other linkers to link clang generated BPF objs?
Thanks,
Xiaochu
2015 Aug 02
2
[LLVMdev] Unable to generate obj file using llc for bpf
Dear there,
I wasn't able to generate obj file for bpf using llc:
llc -march bpf -filetype=obj foo.bc
Anyone knows what is the missing part in their backend? I want to make it
work for my project.
Thanks,
Xiaochu
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20150802/e0b55467/attachment.html>
2015 May 08
2
[LLVMdev] Contributing a buildbot for the BPF backend
Hi everyone,
I am working with Alexei Starovoitov to contribute an LLVM buildbot
for the experimental BPF backend.
I am following the steps at [1] to setup a buildbot and I was mostly
successful: I was able to setup a slave and a temporary master to
check its base config.
Now I'm not sure about the next step: patching the "slaves.py" and
"builders.py" files in zorg.
* Is
2015 Aug 06
2
[LLVMdev] Cc llvmdev: Re: llvm bpf debug info. Re: [RFC PATCH v4 3/3] bpf: Introduce function for outputing data to perf event
On Wed, Aug 05, 2015 at 04:28:13PM +0800, Wangnan (F) wrote:
>
> It doesn't work for me at first since in my llvm there's only
> llvm.bpf.load.*.
>
> I think llvm.bpf.store.* belone to some patches you haven't posted yet?
nope. only loads have special instructions ld_abs/ld_ind
which are represented by these intrinsics.
stores, so far, are done via single
2015 Aug 05
2
[LLVMdev] Cc llvmdev: Re: llvm bpf debug info. Re: [RFC PATCH v4 3/3] bpf: Introduce function for outputing data to perf event
On 8/4/15 11:51 PM, Wangnan (F) wrote:
> void bpf_store_half(void *skb, int off, int val)
> asm("llvm.bpf.store.half");
> int func()
> {
> bpf_store_half(0, 0, 0);
> return 0;
> }
>
> Compiled with:
>
> $ clang -g -target bpf -O2 -S -c test.c
>
> And get this:
>
> .text
> .globl func
> .align
2015 Jun 18
2
[LLVMdev] Contributing a buildbot for the BPF backend
Thank you.
Alexei just committed the change to SVN.
Regards,
Marco Leogrande
Sent by a carbon-based life form; hence, it may contain repetitions,
inaccuracies, logical fallacies and repetitions.
On Wed, Jun 17, 2015 at 2:52 PM, Galina Kistanova <gkistanova at gmail.com> wrote:
> LGTM.
> Please commit.
>
> Thanks
>
> Galina
>
> On Tue, Jun 16, 2015 at 8:32 PM,
2015 Jun 17
2
[LLVMdev] Contributing a buildbot for the BPF backend
Galina,
thanks again for your help.
I have cooked a new patch that should make a bit more sense.
I have added the new builder under
_get_experimental_scheduled_builders(), as the comment above that
function suggested me it would be a good idea. :)
Does it look a reasonable start?
Regards,
Marco Leogrande
Sent by a carbon-based life form; hence, it may contain repetitions,
inaccuracies,
llvm bpf debug info. Re: [RFC PATCH v4 3/3] bpf: Introduce function for outputing data to perf event
2015 Aug 12
2
llvm bpf debug info. Re: [RFC PATCH v4 3/3] bpf: Introduce function for outputing data to perf event
On 2015/8/4 3:44, Alexei Starovoitov wrote:
[SNIP]
>> I'll post 2 LLVM patches by replying this mail. Please have a look and
>> help me
>> send them to LLVM if you think my code is correct.
>
>
[SNIP]
> patch 2:
> do we really need to hack clang?
> Can you just define a function that aliases to intrinsic,
> like we do for ld_abs/ld_ind ?
> void
2015 Aug 05
2
[LLVMdev] Cc llvmdev: Re: llvm bpf debug info. Re: [RFC PATCH v4 3/3] bpf: Introduce function for outputing data to perf event
Send again since llvmdev is moved to llvm-dev at lists.llvm.org
On 2015/8/5 9:58, Wangnan (F) wrote:
>
>
> On 2015/8/4 17:01, Wangnan (F) wrote:
>> For people who in llvmdev:
>>
>> This mail is belong to a thread in linux kernel mailing list, the
>> first message
>> can be retrived from:
>>
>> http://lkml.kernel.org/r/55B1535E.8090406 at
2015 Jun 10
2
[LLVMdev] Contributing a buildbot for the BPF backend
Hello Marco,
Welcome aboard!
slaves.py keeps the build slaves definitions, builders.py keeps the
builders definitions. You have to have both.
The steps of adding a new slave is here:
http://llvm.org/docs/HowToAddABuilder.html. Please make sure you done the
step # 10 before bringing your slave up, otherwise it wouldn't be
authorized by the master and will be blacklisted after multiple
2015 Aug 03
2
[LLVMdev] Unable to generate obj file using llc for bpf
Hi Alexei,
I haven't tried to run code yet. The clang frontend can generate machine
code for bpf but llc does not do the job.
When i use : llc -march bpf -filetype=obj arith.bc
It has this error message:
Assertion failed: (isa<X>(Val) && "cast<Ty>() argument of incompatible
type!"), function cast, file
llvm bpf debug info. Re: [RFC PATCH v4 3/3] bpf: Introduce function for outputing data to perf event
2015 Aug 12
3
llvm bpf debug info. Re: [RFC PATCH v4 3/3] bpf: Introduce function for outputing data to perf event
On 2015/8/12 12:57, Alexei Starovoitov wrote:
> On Wed, Aug 12, 2015 at 10:34:43AM +0800, Wangnan (F) via llvm-dev wrote:
>> Think about a program like this:
>>
>> struct strA { int a; }
>> struct strB { int b; }
>> int func() {
>> struct strA a;
>> struct strB b;
>>
>> a.a = 1;
>> b.b = 2;
>>
2016 Feb 10
2
[RFC] Lanai backend
On Wed, Feb 10, 2016 at 12:40 PM, Renato Golin via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> On 10 February 2016 at 06:44, Chandler Carruth via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
>> But I also see another option, which someone else mentioned up-thread:
>> simply make only the regression tests be supported. Without a regression
>> test case that
2016 Jun 16
2
[iovisor-dev] [PATCH, BPF 1/5] BPF: Use a provisional ELF e_machine value
On 06/16/2016 06:57 PM, Richard Henderson via iovisor-dev wrote:
> On 06/15/2016 10:14 PM, Alexei Starovoitov wrote:
>> On Wed, Jun 15, 2016 at 2:37 PM, Richard Henderson via iovisor-dev
>> <iovisor-dev at lists.iovisor.org> wrote:
>>> This same value for EM_BPF is being propagated to glibc,
>>> elfutils, and binutils.
>>
>> great!
>> Can
2015 Aug 14
2
[LLVM RFC] Add llvm.typeid.for intrinsic
This is for BPF output. BPF program output bytes to perf through a
tracepoint. For decoding such data, we need a way to describe the format
of the buffer. This patch is a try which gives each variable a unique
number by introducing a new intrinsic 'llvm.typeid.for'.
At the bottom is an example of using that intrinsic and the result
of
$ clang -target bpf -O2 -c -S ./test_typeid.c
2019 Oct 31
2
pointer arithmetic with address space attribute not working
Thanks for the detailed info!
The problem was that I tried without assertions and didn't inspect the IR closely as it contained this,
for now, illegal instruction: %6 = bitcast i8* %5 to i8 addrspace(1)*
This is clearly a clang error.
I suggest opening a bug report, or sending the reproducer to cfe-dev at llvm.lists.org so someone will take a look that has more clang experience.
@Matt Do