Em Wed, Nov 11, 2020 at 08:56:27AM -0300, Arnaldo Carvalho de Melo escreveu: > > The entry for btf_encode/-J is missing, I'll add in a followup patch. > > Also I had to fixup ARGP_btf_base to 321 as I added this, to simplify > the kernel scripts and Makefiles: > > $ pahole --numeric_version > 118 > $ Added this: [acme@five pahole]$ git diff diff --git a/man-pages/pahole.1 b/man-pages/pahole.1 index 20ee91fc911d4b39..f44c649924383a32 100644 --- a/man-pages/pahole.1 +++ b/man-pages/pahole.1 @@ -181,6 +181,14 @@ the debugging information. .B \-\-skip_encoding_btf_vars Do not encode VARs in BTF. +.TP +.B \-J, \-\-btf_encode +Encode BTF information from DWARF, used in the Linux kernel build process when +CONFIG_DEBUG_INFO_BTF=y is present, introduced in Linux v5.2. Used to implement +features such as BPF CO-RE (Compile Once - Run Everywhere). + +See \fIhttp://vger.kernel.org/bpfconf2019_talks/bpf-core.pdf\fR. + .TP .B \-\-btf_encode_force Ignore those symbols found invalid when encoding BTF. [acme@five pahole]$
