[PATCH dwarves] libbpf: Get latest libbpf

[PATCH dwarves] libbpf: Get latest libbpf

[Yonghong Song]

Latest upstream LLVM now supports to emit btf_tag to
dwarf ([1]) and the kernel support for btf_tag is also
landed ([2]). Sync with latest libbpf which has
btf_tag support. Next step will be to implement
dwarf -> btf conversion for btf_tag.

 [1] https://reviews.llvm.org/D106621
 [2] https://lore.kernel.org/bpf/20210914223015.245546-1-yhs@fb.com

Signed-off-by: Yonghong Song <yhs@fb.com>
---
 lib/bpf | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/bpf b/lib/bpf
index 986962f..980777c 160000
--- a/lib/bpf
+++ b/lib/bpf
@@ -1 +1 @@
-Subproject commit 986962fade5dfa89c2890f3854eb040d2a64ab38
+Subproject commit 980777cc16db75d5628a537c892aefc2640bb242
-- 
2.30.2

Re: [PATCH dwarves] libbpf: Get latest libbpf

[Arnaldo Carvalho de Melo]

Em Fri, Sep 17, 2021 at 03:48:18PM -0700, Yonghong Song escreveu:
> Latest upstream LLVM now supports to emit btf_tag to
> dwarf ([1]) and the kernel support for btf_tag is also
> landed ([2]). Sync with latest libbpf which has
> btf_tag support. Next step will be to implement
> dwarf -> btf conversion for btf_tag.

Thanks, applied and pushed out. Looking forward to the upcoming btf_tag
patches!

- Arnaldo
 
>  [1] https://reviews.llvm.org/D106621
>  [2] https://lore.kernel.org/bpf/20210914223015.245546-1-yhs@fb.com
> 
> Signed-off-by: Yonghong Song <yhs@fb.com>
> ---
>  lib/bpf | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/bpf b/lib/bpf
> index 986962f..980777c 160000
> --- a/lib/bpf
> +++ b/lib/bpf
> @@ -1 +1 @@
> -Subproject commit 986962fade5dfa89c2890f3854eb040d2a64ab38
> +Subproject commit 980777cc16db75d5628a537c892aefc2640bb242
> -- 
> 2.30.2

-- 

- Arnaldo

Re: [PATCH dwarves] libbpf: Get latest libbpf

[Yonghong Song]

On 9/18/21 2:35 PM, Arnaldo Carvalho de Melo wrote:
> Em Fri, Sep 17, 2021 at 03:48:18PM -0700, Yonghong Song escreveu:
>> Latest upstream LLVM now supports to emit btf_tag to
>> dwarf ([1]) and the kernel support for btf_tag is also
>> landed ([2]). Sync with latest libbpf which has
>> btf_tag support. Next step will be to implement
>> dwarf -> btf conversion for btf_tag.
> 
> Thanks, applied and pushed out. Looking forward to the upcoming btf_tag
> patches!

Great! Thanks. I already have a rough pahole patch. Will do a little bit 
more testing and add flags control and then will send out.

> 
> - Arnaldo
>   
>>   [1] https://reviews.llvm.org/D106621
>>   [2] https://lore.kernel.org/bpf/20210914223015.245546-1-yhs@fb.com
>>
>> Signed-off-by: Yonghong Song <yhs@fb.com>
>> ---
>>   lib/bpf | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/lib/bpf b/lib/bpf
>> index 986962f..980777c 160000
>> --- a/lib/bpf
>> +++ b/lib/bpf
>> @@ -1 +1 @@
>> -Subproject commit 986962fade5dfa89c2890f3854eb040d2a64ab38
>> +Subproject commit 980777cc16db75d5628a537c892aefc2640bb242
>> -- 
>> 2.30.2
>