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| author | Keir Fraser <keir.fraser@citrix.com> | 2009-01-12 10:16:05 +0000 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2009-01-12 10:16:05 +0000 |
| commit | 9f8501582f1c60c0a631a89499fb81d8f197fb30 (patch) | |
| tree | 9f7b768cc4205e09038c454d339b871099a7c324 /tools/Rules.mk | |
| parent | ceff4bb8a36948e4216022511b263831e7e7190f (diff) | |
| download | xen-9f8501582f1c60c0a631a89499fb81d8f197fb30.tar.gz xen-9f8501582f1c60c0a631a89499fb81d8f197fb30.tar.bz2 xen-9f8501582f1c60c0a631a89499fb81d8f197fb30.zip | |
Use -MMD -MF in tools/* rather than -Wp,-M...
If you use -MMD -MF then the correct .o filename is written to the
.*.d file as the compiler driver arranges everything. This was done
in 19010:275abe1c5d24 for the hypervisor.
In this patch we do the same elsewhere in the xen-unstable tree,
particularly tools/. Specifically:
* Change tools/Rules.mk to add -MMD -MF ... to CFLAGS and set DEPS.
* Remove -Wp,-MD... from every other Makefile
* Remove setting of DEPS from every other Makefile
* Ensure that every Makefile says -include $(DEPS)
* Ensure that every Makefile's clean target removes $(DEPS)
Some Makefiles were already halfway there, but often for a different
variable name eg PROG_DEP. The variable name is now standardised in
Rules.mk as DEPS.
I have done a test build with this change, on Debian etch.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Diffstat (limited to 'tools/Rules.mk')
| -rw-r--r-- | tools/Rules.mk | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/Rules.mk b/tools/Rules.mk index a477c8253b..fbd69ea215 100644 --- a/tools/Rules.mk +++ b/tools/Rules.mk @@ -29,6 +29,10 @@ X11_LDPATH = -L/usr/X11R6/$(LIBLEAFDIR) CFLAGS += -D__XEN_TOOLS__ +# Get gcc to generate the dependencies for us. +CFLAGS += -MMD -MF .$(@F).d +DEPS = .*.d + # Enable implicit LFS support *and* explicit LFS names. CFLAGS += $(shell getconf LFS_CFLAGS) CFLAGS += -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE @@ -59,4 +63,3 @@ subdirs-all subdirs-clean subdirs-install: .phony subdir-all-% subdir-clean-% subdir-install-%: .phony $(MAKE) -C $* $(patsubst subdir-%-$*,%,$@) - |