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| author | Andi Kleen <ak@linux.intel.com> | 2014-02-08 09:01:13 +0100 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-02-13 20:25:00 -0800 |
| commit | ccbef1674a1579842c7dbdf554efca85d2cd245a (patch) | |
| tree | 233741914e81874ff08fe288e806a8b6c5d08d3f | |
| parent | 7d02b490e93c199a15b3c4bce1c393588c1300ca (diff) | |
| download | op-kernel-dev-ccbef1674a1579842c7dbdf554efca85d2cd245a.zip op-kernel-dev-ccbef1674a1579842c7dbdf554efca85d2cd245a.tar.gz | |
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>
| -rw-r--r-- | scripts/Kbuild.include | 9 | ||||
| -rwxr-xr-x | scripts/ld-version.sh | 8 |
2 files changed, 17 insertions, 0 deletions
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index 547e15d..93a0da2 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)) + ###### ### diff --git a/scripts/ld-version.sh b/scripts/ld-version.sh new file mode 100755 index 0000000..198580d --- /dev/null +++ b/scripts/ld-version.sh @@ -0,0 +1,8 @@ +#!/usr/bin/awk -f +# extract linker version number from stdin and turn into single number + { + gsub(".*)", ""); + split($1,a, "."); + print a[1]*10000000 + a[2]*100000 + a[3]*10000 + a[4]*100 + a[5]; + exit + } |
