On Fri, 25 Oct 2019 22:03:51 +0200, Jiri Olsa wrote: > On Fri, Oct 25, 2019 at 11:39:01AM -0700, Jakub Kicinski wrote: > > On Thu, 24 Oct 2019 15:30:25 +0200, Jiri Olsa wrote: > > > The bpftool interface stays the same, but now it's possible > > > to run it over BTF raw data, like: > > > > > > $ bpftool btf dump file /sys/kernel/btf/vmlinux > > > [1] INT '(anon)' size=4 bits_offset=0 nr_bits=32 encoding=(none) > > > [2] INT 'long unsigned int' size=8 bits_offset=0 nr_bits=64 encoding=(none) > > > [3] CONST '(anon)' type_id=2 > > > > > > Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx> > > > > Acked-by: Jakub Kicinski <jakub.kicinski@xxxxxxxxxxxxx> > > [root@ibm-z-107 bpftool]# ./bpftool btf dump file /sys/kernel/btf/vmlinux | head -3 > [1] INT '(anon)' size=4 bits_offset=0 nr_bits=32 encoding=(none) > [2] INT 'long unsigned int' size=8 bits_offset=0 nr_bits=64 encoding=(none) > [3] CONST '(anon)' type_id=2 > [root@ibm-z-107 bpftool]# lscpu | grep Endian > Byte Order: Big Endian Thanks for checking! I thought the on-disk format is fixed like the ELF magic number. But if two bads make a right then all is good ☺️