On 11/18/21 5:00 AM, Arnaldo Carvalho de Melo wrote:
Em Wed, Nov 17, 2021 at 12:22:29PM -0800, Yonghong Song escreveu:
This patch implemented dwarf_loader support. If a pointer type
contains DW_TAG_LLVM_annotation tags, a new type
btf_type_tag_ptr_type will be created which will store
the pointer tag itself and all DW_TAG_LLVM_annotation tags.
During recoding stage, the type chain will be formed properly
based on the above example.
An option "--skip_encoding_btf_type_tag" is added to disable
this new functionality.
[1] https://reviews.llvm.org/D111199
[2] https://reviews.llvm.org/D113222
[3] https://reviews.llvm.org/D113496
You forgot to add your S-o-B and to add this entry to
man-pages/pahole.1, I'm fixing both cases, bellow is a followup
patch, I'll add one as well for the recently added
--skip_encoding_btf_decl_tag.
Thanks for the fixup! It is my fault as I never changed man page
before and not aware of that.
- Arnaldo
commit 9c3101db76acf364607d90adb3052e34d81fa1bd
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Date: Thu Nov 18 09:56:35 2021 -0300
man pages: Add missing --skip_encoding_btf_type_tag entry
In the past we saw the value of being able to disable specific features
due to problems in in its implementation, allowing users to use a subset
of functionality, without the problematic one.
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
diff --git a/man-pages/pahole.1 b/man-pages/pahole.1
index edcf58b8ca5814a3..f9f64b67945b45cb 100644
--- a/man-pages/pahole.1
+++ b/man-pages/pahole.1
@@ -197,6 +197,10 @@ the debugging information.
.B \-\-skip_encoding_btf_vars
Do not encode VARs in BTF.
+.TP
+.B \-\-skip_encoding_btf_type_tag
+Do not encode type tags in BTF.
+
.TP
.B \-j, \-\-jobs=N
Run N jobs in parallel. Defaults to number of online processors + 10% (like
LGTM.
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