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Commit ccbef167 authored by Andi Kleen's avatar Andi Kleen Committed by H. Peter Anvin
Browse files

Kbuild, lto: add ld-version and ld-ifversion macros 



To check the linker version. Used by the LTO makefile.

Signed-off-by: default avatarAndi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1391846481-31491-9-git-send-email-ak@linux.intel.com


Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
parent 7d02b490

scripts/Kbuild.include

+9 −0
Original line number Original line Diff line number Diff line
@@ -155,6 +155,15 @@ ld-option = $(call try-run,\ 
# Important: no spaces around options

# Important: no spaces around options

ar-option = $(call try-run, $(AR) rc$(1) "$$TMP",$(1),$(2))

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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scripts/ld-version.sh

0 → 100755
+8 −0
Original line number Original line Diff line number Diff line 
#!/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

	}