build: fix kernel 5.4 on macos

As part of the kernel build process there are utilities built to run on
the host system that expect linux kernel headers to be available.
Unfortunately macos/darwin doesn't have these headers.

vdso2c requires types.h so provide a minimal stub to satisfy it.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>

diff --git a/tools/Makefile b/tools/Makefile
index 3c37316b96f252abd5f934fd7a08a34c666c7bff..02556d4b83f3e44bef980ba0d8748933645a79a1 100644 (file)
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -138,6 +138,10 @@ $(STAGING_DIR_HOST)/.prepared: $(TMP_DIR)/.build
        mkdir -p $(BUILD_DIR_HOST)/stamp $(STAGING_DIR_HOST)/include/sys
        $(INSTALL_DATA) $(TOPDIR)/tools/include/*.h $(STAGING_DIR_HOST)/include/
        $(INSTALL_DATA) $(TOPDIR)/tools/include/sys/*.h $(STAGING_DIR_HOST)/include/sys/
+ifneq ($(HOST_OS),Linux)
+       mkdir -p $(STAGING_DIR_HOST)/include/asm
+       $(INSTALL_DATA) $(TOPDIR)/tools/include/asm/*.h $(STAGING_DIR_HOST)/include/asm/
+endif
        ln -snf lib $(STAGING_DIR_HOST)/lib64
        touch $@
 

diff --git a/tools/include/asm/types.h b/tools/include/asm/types.h
new file mode 100644 (file)
index 0000000..2c91232
--- /dev/null
+++ b/tools/include/asm/types.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * asm-generic/int-ll64.h
+ *
+ * Integer declarations for architectures which use "long long"
+ * for 64-bit types.
+ */
+
+#ifndef _ASM_GENERIC_INT_LL64_H
+#define _ASM_GENERIC_INT_LL64_H
+
+typedef __signed__ char __s8;
+
+typedef __signed__ short __s16;
+
+typedef __signed__ int __s32;
+
+#ifdef __GNUC__
+__extension__ typedef __signed__ long long __s64;
+#else
+typedef __signed__ long long __s64;
+#endif
+
+#endif /* _ASM_GENERIC_INT_LL64_H */