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d="scan'208";a="64149405" From: Andrew Cooper To: Xen-devel CC: Andrew Cooper , Jan Beulich , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Wei Liu Subject: [PATCH v2 60/70] x86: Use control flow typechecking where possible Date: Mon, 14 Feb 2022 12:51:17 +0000 Message-ID: <20220214125127.17985-61-andrew.cooper3@citrix.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20220214125127.17985-1-andrew.cooper3@citrix.com> References: <20220214125127.17985-1-andrew.cooper3@citrix.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @citrix.com) X-ZM-MESSAGEID: 1644844034393100001 Now all callees have been annotated, turn on typechecking to catch issues in the future. Signed-off-by: Andrew Cooper --- CC: Jan Beulich CC: Roger Pau Monn=C3=A9 CC: Wei Liu RFC. This is still an experimental compiler extention https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102953 However, it is also the entire basis of being able to sanely use -mmanual-endbr in the first place, so is very important. --- xen/arch/x86/arch.mk | 1 + 1 file changed, 1 insertion(+) diff --git a/xen/arch/x86/arch.mk b/xen/arch/x86/arch.mk index 8b88f0240e85..1710d056af3f 100644 --- a/xen/arch/x86/arch.mk +++ b/xen/arch/x86/arch.mk @@ -49,6 +49,7 @@ CFLAGS-$(CONFIG_INDIRECT_THUNK) +=3D -fno-jump-tables =20 ifdef CONFIG_XEN_IBT CFLAGS +=3D -fcf-protection=3Dbranch -mmanual-endbr +$(call cc-option-add,CFLAGS,CC,-fcf-check-attribute=3Dno) else $(call cc-option-add,CFLAGS,CC,-fcf-protection=3Dnone) endif --=20 2.11.0