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Revision bc8fbc5f305aecf63423da91e5faf4c0ce40bf38 authored by Marco Elver on 26 February 2021, 01:19:31 UTC, committed by Linus Torvalds on 26 February 2021, 17:41:02 UTC 
kfence: add test suite
 
Add KFENCE test suite, testing various error detection scenarios. Makes
use of KUnit for test organization. Since KFENCE's interface to obtain
error reports is via the console, the test verifies that KFENCE outputs
expected reports to the console.

[elver@google.com: fix typo in test]
  Link: https://lkml.kernel.org/r/X9lHQExmHGvETxY4@elver.google.com
[elver@google.com: show access type in report]
  Link: https://lkml.kernel.org/r/20210111091544.3287013-2-elver@google.com

Link: https://lkml.kernel.org/r/20201103175841.3495947-9-elver@google.com
Signed-off-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Marco Elver <elver@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Co-developed-by: Alexander Potapenko <glider@google.com>
Reviewed-by: Jann Horn <jannh@google.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christopher Lameter <cl@linux.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Hillf Danton <hdanton@sina.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joern Engel <joern@purestorage.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: SeongJae Park <sjpark@amazon.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 10efe55
Raw File
Makefile.userprogs 
# SPDX-License-Identifier: GPL-2.0-only
#
# Build userspace programs for the target system
#

# Executables compiled from a single .c file
user-csingle	:= $(foreach m, $(userprogs), $(if $($(m)-objs),,$(m)))

# Executables linked based on several .o files
user-cmulti	:= $(foreach m, $(userprogs), $(if $($(m)-objs),$(m)))

# Objects compiled from .c files
user-cobjs	:= $(sort $(foreach m, $(userprogs), $($(m)-objs)))

user-csingle	:= $(addprefix $(obj)/, $(user-csingle))
user-cmulti	:= $(addprefix $(obj)/, $(user-cmulti))
user-cobjs	:= $(addprefix $(obj)/, $(user-cobjs))

user_ccflags	= -Wp,-MMD,$(depfile) $(KBUILD_USERCFLAGS) $(userccflags) \
			$($(target-stem)-userccflags)
user_ldflags	= $(KBUILD_USERLDFLAGS) $(userldflags) $($(target-stem)-userldflags)

# Create an executable from a single .c file
quiet_cmd_user_cc_c = CC [U]  $@
      cmd_user_cc_c = $(CC) $(user_ccflags) $(user_ldflags) -o $@ $< \
		      $($(target-stem)-userldlibs)
$(user-csingle): $(obj)/%: $(src)/%.c FORCE
	$(call if_changed_dep,user_cc_c)

# Link an executable based on list of .o files
quiet_cmd_user_ld = LD [U]  $@
      cmd_user_ld = $(CC) $(user_ldflags) -o $@ \
		    $(addprefix $(obj)/, $($(target-stem)-objs)) \
		    $($(target-stem)-userldlibs)
$(user-cmulti): FORCE
	$(call if_changed,user_ld)
$(call multi_depend, $(user-cmulti), , -objs)

# Create .o file from a .c file
quiet_cmd_user_cc_o_c = CC [U]  $@
      cmd_user_cc_o_c = $(CC) $(user_ccflags) -c -o $@ $<
$(user-cobjs): $(obj)/%.o: $(src)/%.c FORCE
	$(call if_changed_dep,user_cc_o_c)

targets += $(user-csingle) $(user-cmulti) $(user-cobjs)
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