Allow building mkimg as cross-tool

For linux the mmap offset must also be page aligned, and we
need to disable macros like __FBSDID()

Change the linux osdep_uuidgen() to use more portable gettimeofday().

Reviewed by: marcel

2 files changed, 38 insertions, 0 deletions

diff --git a/tools/build/cross-build/mkimg/Makefile b/tools/build/cross-build/mkimg/Makefile
new file mode 100644
index 000000000000..932f6150f118
--- /dev/null
+++ b/tools/build/cross-build/mkimg/Makefile
@@ -0,0 +1,27 @@
+# $FreeBSD$
+
+# allow building mkimg as a host tool.
+
+MKIMG_SRC = ${SRCTOP}/usr.bin/mkimg
+.PATH: ${MKIMG_SRC}
+
+.if ${.MAKE.OS} == "Linux"
+WARNS= 0
+
+CFLAGS+= \
+	-D"__FBSDID(x)=" \
+	-D_XOPEN_SOURCE -D_GNU_SOURCE
+
+.PATH: ${SRCTOP}/lib/libutil
+SRCS+= expand_number.c
+
+.endif
+
+MK_STAGING=no
+MK_TESTS= no
+
+.include <${MKIMG_SRC}/Makefile>
+
+.if ${.MAKE.OS} == "Linux"
+LDADD+= -lbsd
+.endif
diff --git a/tools/build/cross-build/mkimg/Makefile.depend b/tools/build/cross-build/mkimg/Makefile.depend
new file mode 100644
index 000000000000..f80275d86ab1
--- /dev/null
+++ b/tools/build/cross-build/mkimg/Makefile.depend
@@ -0,0 +1,11 @@
+# $FreeBSD$
+# Autogenerated - do NOT edit!
+
+DIRDEPS = \
+
+
+.include <dirdeps.mk>
+
+.if ${DEP_RELDIR} == ${_DEP_RELDIR}
+# local dependencies - needed for -jN in clean tree
+.endif