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| author | Tim Deegan <Tim.Deegan@citrix.com> | 2011-03-07 11:21:11 +0000 |
|---|---|---|
| committer | Tim Deegan <Tim.Deegan@citrix.com> | 2011-03-07 11:21:11 +0000 |
| commit | 436323c065f0ace4f469f5854f43423702a5082a (patch) | |
| tree | a93c7f16cc6371a524eedcd7c642848f0d244f66 /config | |
| parent | cde9655eddba4d6636249863e41b2bb5103ba2ee (diff) | |
| download | xen-436323c065f0ace4f469f5854f43423702a5082a.tar.gz xen-436323c065f0ace4f469f5854f43423702a5082a.tar.bz2 xen-436323c065f0ace4f469f5854f43423702a5082a.zip | |
xen: add "clang=y" option to build Xen with clang/llvm instead of gcc.
Tested with svn snapshot of clang and llvm from 17 February 2011.
Only x86_64 hypervisor builds (make dist-xen clang=y) are supported
and I haven't even begun to look at cross-compiling.
Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
Acked-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'config')
| -rw-r--r-- | config/StdGNU.mk | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/config/StdGNU.mk b/config/StdGNU.mk index f27bdc59f5..d73e644bbf 100644 --- a/config/StdGNU.mk +++ b/config/StdGNU.mk @@ -1,6 +1,11 @@ AS = $(CROSS_COMPILE)as +ifeq ($(clang),y) +LD = $(CROSS_COMPILE)gold +CC = $(CROSS_COMPILE)clang +else LD = $(CROSS_COMPILE)ld CC = $(CROSS_COMPILE)gcc +endif CPP = $(CC) -E AR = $(CROSS_COMPILE)ar RANLIB = $(CROSS_COMPILE)ranlib @@ -69,5 +74,8 @@ ifneq ($(debug),y) CFLAGS += -O2 -fomit-frame-pointer else # Less than -O1 produces bad code and large stack frames -CFLAGS += -O1 -fno-omit-frame-pointer -fno-optimize-sibling-calls +CFLAGS += -O1 -fno-omit-frame-pointer +ifneq ($(clang),y) +CFLAGS += -fno-optimize-sibling-calls +endif endif |