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authorJosh Poimboeuf <jpoimboe@redhat.com>2022-04-18 19:50:33 +0300
committerPeter Zijlstra <peterz@infradead.org>2022-04-22 13:32:02 +0300
commit7dce62041ac34b613a5ed1bd937117e492e06dc8 (patch)
tree8c68d74e7cb605887ec35b63415235d5ab9464cf /scripts
parent99c0beb547a3e0ec3a63edeba0960c6ddf2226b0 (diff)
downloadlinux-7dce62041ac34b613a5ed1bd937117e492e06dc8.tar.xz
objtool: Make stack validation optional
Make stack validation an explicit cmdline option so that individual objtool features can be enabled individually by other arches. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Link: https://lkml.kernel.org/r/52da143699574d756e65ca4c9d4acaffe9b0fe5f.1650300597.git.jpoimboe@redhat.com
Diffstat (limited to 'scripts')
-rw-r--r--scripts/Makefile.build1
-rwxr-xr-xscripts/link-vmlinux.sh4
2 files changed, 5 insertions, 0 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 116c7272b41c..d5e15ae29156 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -232,6 +232,7 @@ objtool_args = \
$(if $(CONFIG_UNWINDER_ORC), --orc) \
$(if $(CONFIG_RETPOLINE), --retpoline) \
$(if $(CONFIG_SLS), --sls) \
+ $(if $(CONFIG_STACK_VALIDATION), --stackval) \
$(if $(CONFIG_X86_SMAP), --uaccess) \
$(if $(part-of-module), --module) \
$(if $(CONFIG_FRAME_POINTER),, --no-fp) \
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index f6db79b11573..0140bfa32c0c 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -126,6 +126,10 @@ objtool_link()
objtoolopt="${objtoolopt} --orc"
fi
+ if is_enabled CONFIG_STACK_VALIDATION; then
+ objtoolopt="${objtoolopt} --stackval"
+ fi
+
objtoolopt="${objtoolopt} --lto"
fi