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um: Fix kcov crash during startup 

Kcov fails to start when compiled with kcov. Disable KCOV on
arch/uml/kernel/skas.

  $ gdb -q -ex r ./vmlinux
  Program received signal SIGSEGV, Segmentation fault.
  check_kcov_mode (t=<>, needed_mode=<>) at kernel/kcov.c:70
  70		mode = READ_ONCE(t->kcov_mode);

Signed-off-by: Marek Majkowski <marek@cloudflare.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
alistair/sunxi64-5.4-dsi
Marek Majkowski 2019-06-04 13:20:50 +02:00 committed by Richard Weinberger
parent 80b81cdc66
commit c4683cd5fb
1 changed files with 2 additions and 0 deletions
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2
arch/um/kernel/skas/Makefile
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@ -12,4 +12,6 @@ obj-y := clone.o mmu.o process.o syscall.o uaccess.o
CFLAGS_clone.o := $(CFLAGS_NO_HARDENING)
UNPROFILE_OBJS := clone.o
KCOV_INSTRUMENT := n
include arch/um/scripts/Makefile.rules