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authorAndi Kleen <ak@linux.intel.com>2014-02-08 09:01:13 +0100
committerH. Peter Anvin <hpa@linux.intel.com>2014-02-13 20:25:00 -0800
commitccbef1674a1579842c7dbdf554efca85d2cd245a (patch)
tree233741914e81874ff08fe288e806a8b6c5d08d3f /scripts/Kbuild.include
parent7d02b490e93c199a15b3c4bce1c393588c1300ca (diff)
Kbuild, lto: add ld-version and ld-ifversion macros
To check the linker version. Used by the LTO makefile. Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1391846481-31491-9-git-send-email-ak@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'scripts/Kbuild.include')
-rw-r--r--scripts/Kbuild.include9
1 files changed, 9 insertions, 0 deletions
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index 547e15daf03d..93a0da26582b 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -155,6 +155,15 @@ ld-option = $(call try-run,\
# Important: no spaces around options
ar-option = $(call try-run, $(AR) rc$(1) "$$TMP",$(1),$(2))
+# ld-version
+# Usage: $(call ld-version)
+# Note this is mainly for HJ Lu's 3 number binutil versions
+ld-version = $(shell $(LD) --version | $(srctree)/scripts/ld-version.sh)
+
+# ld-ifversion
+# Usage: $(call ld-ifversion, -ge, 22252, y)
+ld-ifversion = $(shell [ $(call ld-version) $(1) $(2) ] && echo $(3))
+
######
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