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authorMasahiro Yamada <masahiroy@kernel.org>2024-05-06 22:35:43 +0900
committerMasahiro Yamada <masahiroy@kernel.org>2024-05-14 23:35:48 +0900
commit7f7f6f7ad654b326897c9f54438a06f03454bd0d (patch)
treece70b1dee7124751bf7f644e69117ec5d9c135e1 /arch/x86/boot/Makefile
parent9c2d1328f88adb6cbfb218163623254b96f680d3 (diff)
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Makefile: remove redundant tool coverage variables
Now Kbuild provides reasonable defaults for objtool, sanitizers, and profilers. Remove redundant variables. Note: This commit changes the coverage for some objects: - include arch/mips/vdso/vdso-image.o into UBSAN, GCOV, KCOV - include arch/sparc/vdso/vdso-image-*.o into UBSAN - include arch/sparc/vdso/vma.o into UBSAN - include arch/x86/entry/vdso/extable.o into KASAN, KCSAN, UBSAN, GCOV, KCOV - include arch/x86/entry/vdso/vdso-image-*.o into KASAN, KCSAN, UBSAN, GCOV, KCOV - include arch/x86/entry/vdso/vdso32-setup.o into KASAN, KCSAN, UBSAN, GCOV, KCOV - include arch/x86/entry/vdso/vma.o into GCOV, KCOV - include arch/x86/um/vdso/vma.o into KASAN, GCOV, KCOV I believe these are positive effects because all of them are kernel space objects. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Tested-by: Roberto Sassu <roberto.sassu@huawei.com>
Diffstat (limited to 'arch/x86/boot/Makefile')
-rw-r--r--arch/x86/boot/Makefile15
1 files changed, 0 insertions, 15 deletions
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 29cda98c65f8..1cf24ff6acac 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -9,19 +9,6 @@
# Changed by many, many contributors over the years.
#
-# Sanitizer runtimes are unavailable and cannot be linked for early boot code.
-KASAN_SANITIZE := n
-KCSAN_SANITIZE := n
-KMSAN_SANITIZE := n
-OBJECT_FILES_NON_STANDARD := y
-
-# Kernel does not boot with kcov instrumentation here.
-# One of the problems observed was insertion of __sanitizer_cov_trace_pc()
-# callback into middle of per-cpu data enabling code. Thus the callback observed
-# inconsistent state and crashed. We are interested mostly in syscall coverage,
-# so boot code is not interesting anyway.
-KCOV_INSTRUMENT := n
-
# If you want to preset the SVGA mode, uncomment the next line and
# set SVGA_MODE to whatever number you want.
# Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
@@ -69,8 +56,6 @@ KBUILD_CFLAGS := $(REALMODE_CFLAGS) -D_SETUP
KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
-GCOV_PROFILE := n
-UBSAN_SANITIZE := n
$(obj)/bzImage: asflags-y := $(SVGA_MODE)