Tell stackvalidate to skip validation of the following code:

- boot image
- vdso image
- kexec purgatory
- realmode
- efi libstub

They all run outside the kernel's normal mode of operation and they
don't affect runtime kernel stack traces, so they're free to skirt the
stackvalidate rules.

Signed-off-by: Josh Poimboeuf <jpoim...@redhat.com>
---
 arch/x86/boot/Makefile                | 3 ++-
 arch/x86/boot/compressed/Makefile     | 3 ++-
 arch/x86/entry/vdso/Makefile          | 5 ++++-
 arch/x86/purgatory/Makefile           | 2 ++
 arch/x86/realmode/Makefile            | 4 +++-
 arch/x86/realmode/rm/Makefile         | 3 ++-
 drivers/firmware/efi/libstub/Makefile | 1 +
 7 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 57bbf2f..f3f0c35 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -14,7 +14,8 @@
 # Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
 # The number is the same as you would ordinarily press at bootup.
 
-KASAN_SANITIZE := n
+KASAN_SANITIZE := n
+STACKVALIDATE  := n
 
 SVGA_MODE      := -DSVGA_MODE=NORMAL_VGA
 
diff --git a/arch/x86/boot/compressed/Makefile 
b/arch/x86/boot/compressed/Makefile
index 0a291cd..530a46f 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -16,7 +16,8 @@
 #      (see scripts/Makefile.lib size_append)
 #      compressed vmlinux.bin.all + u32 size of vmlinux.bin.all
 
-KASAN_SANITIZE := n
+KASAN_SANITIZE := n
+STACKVALIDATE  := n
 
 targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma 
\
        vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4
diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile
index 96c0617..ccaf812 100644
--- a/arch/x86/entry/vdso/Makefile
+++ b/arch/x86/entry/vdso/Makefile
@@ -3,7 +3,9 @@
 #
 
 KBUILD_CFLAGS += $(DISABLE_LTO)
-KASAN_SANITIZE := n
+
+KASAN_SANITIZE := n
+STACKVALIDATE  := n
 
 VDSO64-$(CONFIG_X86_64)                := y
 VDSOX32-$(CONFIG_X86_X32_ABI)  := y
@@ -15,6 +17,7 @@ vobjs-y := vdso-note.o vclock_gettime.o vgetcpu.o
 
 # files to link into kernel
 obj-y                          += vma.o
+STACKVALIDATE_vma.o            := y
 
 # vDSO images to build
 vdso_img-$(VDSO64-y)           += 64
diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile
index 2c835e3..a736c19 100644
--- a/arch/x86/purgatory/Makefile
+++ b/arch/x86/purgatory/Makefile
@@ -1,3 +1,5 @@
+STACKVALIDATE := n
+
 purgatory-y := purgatory.o stack.o setup-x86_$(BITS).o sha256.o entry64.o 
string.o
 
 targets += $(purgatory-y)
diff --git a/arch/x86/realmode/Makefile b/arch/x86/realmode/Makefile
index e02c2c6..7a2d4df 100644
--- a/arch/x86/realmode/Makefile
+++ b/arch/x86/realmode/Makefile
@@ -6,7 +6,9 @@
 # for more details.
 #
 #
-KASAN_SANITIZE := n
+KASAN_SANITIZE := n
+STACKVALIDATE  := n
+
 subdir- := rm
 
 obj-y += init.o
diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile
index 2730d77..d462a57 100644
--- a/arch/x86/realmode/rm/Makefile
+++ b/arch/x86/realmode/rm/Makefile
@@ -6,7 +6,8 @@
 # for more details.
 #
 #
-KASAN_SANITIZE := n
+KASAN_SANITIZE := n
+STACKVALIDATE  := n
 
 always := realmode.bin realmode.relocs
 
diff --git a/drivers/firmware/efi/libstub/Makefile 
b/drivers/firmware/efi/libstub/Makefile
index 816dbe9..b392f3f 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -20,6 +20,7 @@ KBUILD_CFLAGS                 := $(cflags-y) \
 
 GCOV_PROFILE                   := n
 KASAN_SANITIZE                 := n
+STACKVALIDATE                  := n
 
 lib-y                          := efi-stub-helper.o
 lib-$(CONFIG_EFI_ARMSTUB)      += arm-stub.o fdt.o
-- 
2.1.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to