Commit-ID: ccbef1674a1579842c7dbdf554efca85d2cd245a Gitweb: http://git.kernel.org/tip/ccbef1674a1579842c7dbdf554efca85d2cd245a Author: Andi Kleen <a...@linux.intel.com> AuthorDate: Sat, 8 Feb 2014 09:01:13 +0100 Committer: H. Peter Anvin <h...@linux.intel.com> CommitDate: Thu, 13 Feb 2014 20:25:00 -0800
Kbuild, lto: add ld-version and ld-ifversion macros To check the linker version. Used by the LTO makefile. Signed-off-by: Andi Kleen <a...@linux.intel.com> Link: http://lkml.kernel.org/r/1391846481-31491-9-git-send-email...@linux.intel.com Signed-off-by: H. Peter Anvin <h...@linux.intel.com> --- scripts/Kbuild.include | 9 +++++++++ scripts/ld-version.sh | 8 ++++++++ 2 files changed, 17 insertions(+) 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 + } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
