Commit c3e6df97 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

Revert "perf build: Warn for BPF skeletons if endian mismatches" 



This reverts commit 51924ae6.

We need to better polish building with BPF skels, so revert back to
making it an experimental feature that has to be explicitely enabled
using BUILD_BPF_SKEL=1.

Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 6c73f819

tools/perf/Makefile.config

+7 −10
Original line number Diff line number Diff line
@@ -663,18 +663,15 @@ ifndef NO_BPF_SKEL 
  $(call feature_check,clang-bpf-co-re)

  ifeq ($(feature-clang-bpf-co-re), 0)

    dummy := $(error: ERROR: BPF skeletons unsupported. clang too old/not installed or build with NO_BPF_SKEL=1.)

  endif

  else

    ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)

      dummy := $(error: ERROR: BPF skeletons unsupported. BPF skeleton support requires libbpf or build with NO_BPF_SKEL=1.)

  endif

  host_byte_order=$(echo ""|$(HOSTCC) -dM -E -|grep __BYTE_ORDER__)

  target_byte_order=$(echo ""|$(CC) -dM -E -|grep __BYTE_ORDER__)

  ifneq ($(host_byte_order), $(target_byte_order))

    $(warning Possibly mismatched host and target endianness may break BPF skeletons)

  endif

    else

      $(call detected,CONFIG_PERF_BPF_SKEL)

      CFLAGS += -DHAVE_BPF_SKEL

    endif

  endif

endif



dwarf-post-unwind := 1

dwarf-post-unwind-text := BUG