From 243f0c45ca8060a230e0bde34783b75c0fefb47a Mon Sep 17 00:00:00 2001
From: Simon Kuenzer <simon@unikraft.io>
Date: Thu, 23 Feb 2023 22:21:04 +0100
Subject: [PATCH] build: Declare __LIBNAME__, __BASENAME__ and __VARIANT__ for
 .lds.S

.lds.S files are linker script files that use the C preprocessor in order
to generate the final .lds file. This commit provides Unikraft's common
declarations of `__LIBNAME__`, `__BASENAME__`, `__VARIANT__` to this
pre-processing step so that they can be used for generating linker scripts.

Signed-off-by: Simon Kuenzer <simon@unikraft.io>
Reviewed-by: Delia Pavel <delia_maria.pavel@stud.acs.upb.ro>
Approved-by: Razvan Deaconescu <razvand@unikraft.io>
Tested-by: Unikraft CI <monkey@unikraft.io>
GitHub-Closes: #868
---
 support/build/Makefile.rules | 1 +
 1 file changed, 1 insertion(+)

diff --git a/support/build/Makefile.rules b/support/build/Makefile.rules
index 6a7a0c7b1..c1d84b89d 100644
--- a/support/build/Makefile.rules
+++ b/support/build/Makefile.rules
@@ -642,6 +642,7 @@ $(4): $(2) | preprocess
 		       $$(ASFLAGS) $$(ASFLAGS-y) $$(ASFLAGS_EXTRA) \
 		       $$($(call vprefix_lib,$(1),ASFLAGS)) $$($(call vprefix_lib,$(1),ASFLAGS-y)) \
 		       $$($(call vprefix_src,$(1),$(2),$(3),FLAGS)) $$($(call vprefix_src,$(1),$(2),$(3),FLAGS-y)) \
+		       -D__LIBNAME__=$(1) -D__BASENAME__=$(notdir $(2)) $(if $(3),-D__VARIANT__=$(3)) \
 		       $(5) \
 		       $(2) -o $(4) $(call depflags,$(4))
 	)
-- 
2.39.5