[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen staging] xen: Move CONFIG_INDIRECT_THUNK to Kconfig
commit c3333c3a5d1224513f801aed11953234851bbf96 Author: Anthony PERARD <anthony.perard@xxxxxxxxxx> AuthorDate: Wed Dec 11 13:55:06 2019 +0000 Commit: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> CommitDate: Thu Jan 30 11:54:33 2020 +0000 xen: Move CONFIG_INDIRECT_THUNK to Kconfig Now that Kconfig has the capability to run shell command when generating CONFIG_* we can use it in some cases to test CFLAGS. CONFIG_INDIRECT_THUNK is a good example that wants to exist both in Makefile and as a C macro, which Kconfig do. So use Kconfig to generate CONFIG_INDIRECT_THUNK and have the CFLAGS depends on that. Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx> Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> --- xen/arch/x86/Kconfig | 3 +++ xen/arch/x86/Rules.mk | 4 +--- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/xen/arch/x86/Kconfig b/xen/arch/x86/Kconfig index f853c04564..8149362bde 100644 --- a/xen/arch/x86/Kconfig +++ b/xen/arch/x86/Kconfig @@ -31,6 +31,9 @@ config ARCH_DEFCONFIG string default "arch/x86/configs/x86_64_defconfig" +config INDIRECT_THUNK + def_bool $(cc-option,-mindirect-branch-register) + menu "Architecture Features" source "arch/Kconfig" diff --git a/xen/arch/x86/Rules.mk b/xen/arch/x86/Rules.mk index 92fdbe9d68..a2c257fb95 100644 --- a/xen/arch/x86/Rules.mk +++ b/xen/arch/x86/Rules.mk @@ -71,11 +71,9 @@ CFLAGS += -DGCC_HAS_VISIBILITY_ATTRIBUTE endif # Compile with thunk-extern, indirect-branch-register if avaiable. -ifneq ($(call cc-option,$(CC),-mindirect-branch-register,n),n) +ifeq ($(CONFIG_INDIRECT_THUNK),y) CFLAGS += -mindirect-branch=thunk-extern -mindirect-branch-register -CFLAGS += -DCONFIG_INDIRECT_THUNK CFLAGS += -fno-jump-tables -export CONFIG_INDIRECT_THUNK=y endif # If supported by the compiler, reduce stack alignment to 8 bytes. But allow -- generated by git-patchbot for /home/xen/git/xen.git#staging _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/xen-changelog
|
![]() |
Lists.xenproject.org is hosted with RackSpace, monitoring our |