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[v2,3/7] kbuild: add ld-name macro

Message ID 20171130233905.130602-4-samitolvanen@google.com (mailing list archive)
State New, archived
Headers show

Commit Message

Sami Tolvanen Nov. 30, 2017, 11:39 p.m. UTC 
GNU gold may require different flags than GNU ld. Add a macro for
detecting the linker.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
---
 scripts/Kbuild.include | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index eb2cf2780f6e..899863e4cd05 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -273,6 +273,10 @@  ld-option = $(call try-run-cached,\
 # Important: no spaces around options
 ar-option = $(call try-run-cached, $(AR) rc$(1) "$$TMP",$(1),$(2))
 
+# ld-name
+# Expands to either bfd or gold
+ld-name = $(shell $(LD) -v 2>&1 | grep -q "GNU gold" && echo gold || echo bfd)
+
 # ld-version
 # Note this is mainly for HJ Lu's 3 number binutil versions
 ld-version = $(call shell-cached,$(LD) --version | $(srctree)/scripts/ld-version.sh)