[PATCH v2 1/3] stubdom: fix build with disabled pv-grub

[Juergen Gross <jgross@xxxxxxxx>]

Today the build will fail if --disable-pv-grub as a parameter of
configure, as the main Makefile will unconditionally try to build a
32-bit pv-grub stubdom.

Fix that by introducing a pv-grub32 target in stubdom/Makefile taking
care of this situation.

Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
Reviewed-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>
---
 Makefile         |  4 ++--
 stubdom/Makefile | 13 +++++++++++++
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 96d32cfd50..5b5cef3e49 100644
--- a/Makefile
+++ b/Makefile
@@ -72,7 +72,7 @@ build-tools-oxenstored: build-tools-public-headers
 build-stubdom: mini-os-dir build-tools-public-headers
        $(MAKE) -C stubdom build
 ifeq (x86_64,$(XEN_TARGET_ARCH))
-       XEN_TARGET_ARCH=x86_32 $(MAKE) -C stubdom pv-grub
+       XEN_TARGET_ARCH=x86_32 $(MAKE) -C stubdom pv-grub32
 endif
 
 .PHONY: build-docs
@@ -143,7 +143,7 @@ install-tools: install-tools-public-headers
 install-stubdom: mini-os-dir install-tools
        $(MAKE) -C stubdom install
 ifeq (x86_64,$(XEN_TARGET_ARCH))
-       XEN_TARGET_ARCH=x86_32 $(MAKE) -C stubdom install-grub
+       XEN_TARGET_ARCH=x86_32 $(MAKE) -C stubdom install-grub32
 endif
 
 .PHONY: tools/firmware/seabios-dir-force-update
diff --git a/stubdom/Makefile b/stubdom/Makefile
index 06aa69d8bc..b339ae701c 100644
--- a/stubdom/Makefile
+++ b/stubdom/Makefile
@@ -531,6 +531,13 @@ vtpmmgr-stubdom: mini-os-$(XEN_TARGET_ARCH)-vtpmmgr vtpmmgr
 pv-grub: mini-os-$(XEN_TARGET_ARCH)-grub libxenguest grub
        DEF_CPPFLAGS="$(TARGET_CPPFLAGS)" DEF_CFLAGS="$(TARGET_CFLAGS)" 
DEF_LDFLAGS="$(TARGET_LDFLAGS)" MINIOS_CONFIG="$(CURDIR)/grub/minios.cfg" 
$(MAKE) DESTDIR= -C $(MINI_OS) OBJ_DIR=$(CURDIR)/$< 
APP_OBJS=$(CURDIR)/grub-$(XEN_TARGET_ARCH)/main.a
 
+.PHONY: pv-grub32
+ifneq ($(filter grub,$(STUBDOM_TARGETS)),)
+pv-grub32: pv-grub
+else
+pv-grub32:
+endif
+
 .PHONY: xenstore-stubdom
 xenstore-stubdom: mini-os-$(XEN_TARGET_ARCH)-xenstore libxenguest xenstore
        DEF_CPPFLAGS="$(TARGET_CPPFLAGS)" DEF_CFLAGS="$(TARGET_CFLAGS)" 
DEF_LDFLAGS="$(TARGET_LDFLAGS)" MINIOS_CONFIG="$(CURDIR)/xenstore-minios.cfg" 
$(MAKE) DESTDIR= -C $(MINI_OS) OBJ_DIR=$(CURDIR)/$< 
APP_OBJS=$(CURDIR)/xenstore/xenstored.a
@@ -560,6 +567,12 @@ install-grub: pv-grub
        $(INSTALL_DIR) "$(DESTDIR)$(XENFIRMWAREDIR)"
        $(INSTALL_DATA) mini-os-$(XEN_TARGET_ARCH)-grub/mini-os.gz 
"$(DESTDIR)$(XENFIRMWAREDIR)/pv-grub-$(XEN_TARGET_ARCH).gz"
 
+ifneq ($(filter grub,$(STUBDOM_TARGETS)),)
+install-grub32: install-grub
+else
+install-grub32:
+endif
+
 install-c: c-stubdom
 
 install-caml: caml-stubdom
-- 
2.26.2