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authorThomas Weißschuh <thomas.weissschuh@linutronix.de>2025-06-20 13:00:27 +0200
committerThomas Weißschuh <linux@weissschuh.net>2025-07-08 09:19:23 +0200
commita40f0cdce78be8a559ee8a85c908049c65a410b2 (patch)
tree2cd548bda6367fc54beb85b854b065f73a02e883
parent31db7b6a78b7651973c66b7cf479209b20c55290 (diff)
tools/build: Fix s390(x) cross-compilation with clang
The heuristic to derive a clang target triple from a GCC one does not work for s390. GCC uses "s390-linux" while clang expects "s390x-linux" or "powerz-linux". Add an explicit override. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Link: https://lore.kernel.org/r/20250620-tools-cross-s390-v2-1-ecda886e00e5@linutronix.de Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
-rw-r--r--tools/scripts/Makefile.include4
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include
index 5158250988ce..ded48263dd5e 100644
--- a/tools/scripts/Makefile.include
+++ b/tools/scripts/Makefile.include
@@ -101,7 +101,9 @@ else ifneq ($(CROSS_COMPILE),)
# Allow userspace to override CLANG_CROSS_FLAGS to specify their own
# sysroots and flags or to avoid the GCC call in pure Clang builds.
ifeq ($(CLANG_CROSS_FLAGS),)
-CLANG_CROSS_FLAGS := --target=$(notdir $(CROSS_COMPILE:%-=%))
+CLANG_TARGET := $(notdir $(CROSS_COMPILE:%-=%))
+CLANG_TARGET := $(subst s390-linux,s390x-linux,$(CLANG_TARGET))
+CLANG_CROSS_FLAGS := --target=$(CLANG_TARGET)
GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)gcc 2>/dev/null))
ifneq ($(GCC_TOOLCHAIN_DIR),)
CLANG_CROSS_FLAGS += --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))