FROMLIST: kbuild: add __ld-ifversion and linker-specific macros

Add macros for testing both linker name and version.

Bug: 62093296
Bug: 67506682
Change-Id: Icbb13e9bb889017cd4a7457a62dea7e0335c53b5
(am from https://patchwork.kernel.org/patch/10085789/)
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>

diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index ae167b7b187b46fb89ca6400f68a62e51ca28aca..76f57f59578595136ddff1c08789e50b16315317 100644 (file)
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -216,6 +216,18 @@ ld-version = $(shell $(LD) --version | $(srctree)/scripts/ld-version.sh)
 # Usage:  $(call ld-ifversion, -ge, 22252, y)
 ld-ifversion = $(shell [ $(ld-version) $(1) $(2) ] && echo $(3) || echo $(4))
 
+# __ld-ifversion
+# Usage:  $(call __ld-ifversion, gold, -ge, 112000000, y)
+__ld-ifversion = $(shell [ $(ld-name) = $(1) ] && [ $(ld-version) $(2) $(3) ] && echo $(4) || echo $(5))
+
+# bfd-ifversion
+# Usage:  $(call bfd-ifversion, -ge, 227000000, y)
+bfd-ifversion = $(call __ld-ifversion, bfd, $(1), $(2), $(3), $(4))
+
+# gold-ifversion
+# Usage:  $(call gold-ifversion, -ge, 112000000, y)
+gold-ifversion = $(call __ld-ifversion, gold, $(1), $(2), $(3), $(4))
+
 ######
 
 ###