The patch titled
Subject: powerpc: enable UBSAN support
has been removed from the -mm tree. Its filename was
powerpc-enable-ubsan-support.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Daniel Axtens <dja@xxxxxxxxxx>
Subject: powerpc: enable UBSAN support
This hooks up UBSAN support for PowerPC.
So far it's found some interesting cases where we don't properly sanitise
input to shifts, including one in our futex handling. Nothing critical,
but interesting and worth fixing.
[valentinrothberg@xxxxxxxxx: arch/powerpc/Kconfig: fix typo in select statement]
Signed-off-by: Daniel Axtens <dja@xxxxxxxxxx>
Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Tested-by: Andrew Donnellan <andrew.donnellan@xxxxxxxxxxx>
Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Signed-off-by: Valentin Rothberg <valentinrothberg@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/Kconfig | 1 +
arch/powerpc/kernel/Makefile | 8 +++++++-
arch/powerpc/kernel/vdso32/Makefile | 1 +
arch/powerpc/kernel/vdso64/Makefile | 1 +
arch/powerpc/xmon/Makefile | 1 +
5 files changed, 11 insertions(+), 1 deletion(-)
diff -puN arch/powerpc/Kconfig~powerpc-enable-ubsan-support arch/powerpc/Kconfig
--- a/arch/powerpc/Kconfig~powerpc-enable-ubsan-support
+++ a/arch/powerpc/Kconfig
@@ -158,6 +158,7 @@ config PPC
select ARCH_HAS_DMA_SET_COHERENT_MASK
select ARCH_HAS_DEVMEM_IS_ALLOWED
select HAVE_ARCH_SECCOMP_FILTER
+ select ARCH_HAS_UBSAN_SANITIZE_ALL
config GENERIC_CSUM
def_bool CPU_LITTLE_ENDIAN
diff -puN arch/powerpc/kernel/Makefile~powerpc-enable-ubsan-support arch/powerpc/kernel/Makefile
--- a/arch/powerpc/kernel/Makefile~powerpc-enable-ubsan-support
+++ a/arch/powerpc/kernel/Makefile
@@ -136,12 +136,18 @@ endif
obj-$(CONFIG_EPAPR_PARAVIRT) += epapr_paravirt.o epapr_hcalls.o
obj-$(CONFIG_KVM_GUEST) += kvm.o kvm_emul.o
-# Disable GCOV in odd or sensitive code
+# Disable GCOV & sanitizers in odd or sensitive code
GCOV_PROFILE_prom_init.o := n
+UBSAN_SANITIZE_prom_init.o := n
GCOV_PROFILE_ftrace.o := n
+UBSAN_SANITIZE_ftrace.o := n
GCOV_PROFILE_machine_kexec_64.o := n
+UBSAN_SANITIZE_machine_kexec_64.o := n
GCOV_PROFILE_machine_kexec_32.o := n
+UBSAN_SANITIZE_machine_kexec_32.o := n
GCOV_PROFILE_kprobes.o := n
+UBSAN_SANITIZE_kprobes.o := n
+UBSAN_SANITIZE_vdso.o := n
extra-$(CONFIG_PPC_FPU) += fpu.o
extra-$(CONFIG_ALTIVEC) += vector.o
diff -puN arch/powerpc/kernel/vdso32/Makefile~powerpc-enable-ubsan-support arch/powerpc/kernel/vdso32/Makefile
--- a/arch/powerpc/kernel/vdso32/Makefile~powerpc-enable-ubsan-support
+++ a/arch/powerpc/kernel/vdso32/Makefile
@@ -15,6 +15,7 @@ targets := $(obj-vdso32) vdso32.so vdso3
obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32))
GCOV_PROFILE := n
+UBSAN_SANITIZE := n
ccflags-y := -shared -fno-common -fno-builtin
ccflags-y += -nostdlib -Wl,-soname=linux-vdso32.so.1 \
diff -puN arch/powerpc/kernel/vdso64/Makefile~powerpc-enable-ubsan-support arch/powerpc/kernel/vdso64/Makefile
--- a/arch/powerpc/kernel/vdso64/Makefile~powerpc-enable-ubsan-support
+++ a/arch/powerpc/kernel/vdso64/Makefile
@@ -8,6 +8,7 @@ targets := $(obj-vdso64) vdso64.so vdso6
obj-vdso64 := $(addprefix $(obj)/, $(obj-vdso64))
GCOV_PROFILE := n
+UBSAN_SANITIZE := n
ccflags-y := -shared -fno-common -fno-builtin
ccflags-y += -nostdlib -Wl,-soname=linux-vdso64.so.1 \
diff -puN arch/powerpc/xmon/Makefile~powerpc-enable-ubsan-support arch/powerpc/xmon/Makefile
--- a/arch/powerpc/xmon/Makefile~powerpc-enable-ubsan-support
+++ a/arch/powerpc/xmon/Makefile
@@ -3,6 +3,7 @@
subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
GCOV_PROFILE := n
+UBSAN_SANITIZE := n
ccflags-$(CONFIG_PPC64) := $(NO_MINIMAL_TOC)
_
Patches currently in -mm which might be from dja@xxxxxxxxxx are
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
