mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 02:39:48 +00:00
perf tools: Warn about missing libelf
When perf detects no libelf during the build, it'll use internal mini elf parser instead of libelf. But as it only supports minimal functionalities, it also disables support to 'probe' builtin command. Currently it didn't warned to user. Fix it. $ sudo apt-get remove libelf-dev $ make CHK -fstack-protector-all CHK -Wstack-protector CHK -Wvolatile-register-var CHK bionic CHK libelf CHK glibc Makefile:491: No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev CHK libunwind CHK libaudit $ make NO_LIBELF=1 CHK -fstack-protector-all CHK -Wstack-protector CHK -Wvolatile-register-var CHK bionic CHK libaudit Reported-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/n/tip-8ww8zc4hhpxabfskxs3u5ede@git.kernel.org [ committer note: The package needed is elfutils-libelf-devel, not elfutils-devel ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
parent
95d18aa2b6
commit
d30ff29562
1 changed files with 2 additions and 0 deletions
|
@ -490,6 +490,8 @@ ifneq ($(call try-cc,$(SOURCE_LIBELF),$(FLAGS_LIBELF),libelf),y)
|
|||
LIBC_SUPPORT := 1
|
||||
endif
|
||||
ifeq ($(LIBC_SUPPORT),1)
|
||||
msg := $(warning No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev);
|
||||
|
||||
NO_LIBELF := 1
|
||||
NO_DWARF := 1
|
||||
NO_DEMANGLE := 1
|
||||
|
|
Loading…
Reference in a new issue