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authorJosh Poimboeuf <jpoimboe@redhat.com>2022-04-19 09:05:09 -0700
committerPeter Zijlstra <peterz@infradead.org>2022-05-27 12:34:43 +0200
commit5f3da8c08508df82823566c32f753071c8ad36af (patch)
treeb2f63ac85502f74ba1f9774c22f5b90292d1947c /arch
parent7e284070abe53d448517b80493863595af4ab5f0 (diff)
objtool: Add CONFIG_HAVE_UACCESS_VALIDATION
Allow an arch specify that it has objtool uaccess validation with CONFIG_HAVE_UACCESS_VALIDATION. For now, doing so unconditionally selects CONFIG_OBJTOOL. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/d393d5e2fe73aec6e8e41d5c24f4b6fe8583f2d8.1650384225.git.jpoimboe@redhat.com
Diffstat (limited to 'arch')
-rw-r--r--arch/Kconfig4
-rw-r--r--arch/x86/Kconfig1
2 files changed, 5 insertions, 0 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index 904ed51736d4..cb2954027d10 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -1050,6 +1050,10 @@ config HAVE_NOINSTR_HACK
config HAVE_NOINSTR_VALIDATION
bool
+config HAVE_UACCESS_VALIDATION
+ bool
+ select OBJTOOL
+
config HAVE_STACK_VALIDATION
bool
help
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index cf531fbcd229..5f41f3c3df9a 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -258,6 +258,7 @@ config X86
select HAVE_PREEMPT_DYNAMIC_CALL
select HAVE_RSEQ
select HAVE_SYSCALL_TRACEPOINTS
+ select HAVE_UACCESS_VALIDATION if HAVE_OBJTOOL
select HAVE_UNSTABLE_SCHED_CLOCK
select HAVE_USER_RETURN_NOTIFIER
select HAVE_GENERIC_VDSO