From: Keir Fraser <keir.fraser@citrix.com>
Date: Thu, 18 Dec 2008 11:27:37 +0000 (+0000)
Subject: Fix mini-os ia64 compilation
X-Git-Tag: xen-3.4.0-rc1~8
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=675163e05aecd16ba964c2573914270ab238ea45;p=people%2Fliuw%2Fmini-os.git

Fix mini-os ia64 compilation

- Avoid nested function to avoid a trampoline.
- Do not link mini-os_app.o when it is empty.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
---

diff --git a/Makefile b/Makefile
index ec24cba..78e0c9d 100644
--- a/Makefile
+++ b/Makefile
@@ -93,8 +93,12 @@ endif
 $(OBJ_DIR)/$(TARGET)_app.o: $(APP_OBJS) app.lds
 	$(LD) -r -d $(LDFLAGS) -\( $^ -\) $(APP_LDLIBS) --undefined main -o $@
 
-$(OBJ_DIR)/$(TARGET): links $(OBJS) $(OBJ_DIR)/$(TARGET)_app.o arch_lib
-	$(LD) -r $(LDFLAGS) $(HEAD_OBJ) $(OBJ_DIR)/$(TARGET)_app.o $(OBJS) $(LDARCHLIB) $(LDLIBS) -o $@.o
+ifneq ($(APP_OBJS),)
+APP_O=$(OBJ_DIR)/$(TARGET)_app.o 
+endif
+
+$(OBJ_DIR)/$(TARGET): links $(OBJS) $(APP_O) arch_lib
+	$(LD) -r $(LDFLAGS) $(HEAD_OBJ) $(APP_O) $(OBJS) $(LDARCHLIB) $(LDLIBS) -o $@.o
 	$(OBJCOPY) -w -G $(GLOBAL_PREFIX)* -G _start $@.o $@.o
 	$(LD) $(LDFLAGS) $(LDFLAGS_FINAL) $@.o $(EXTRA_OBJS) -o $@
 	gzip -f -9 -c $@ >$@.gz
diff --git a/kernel.c b/kernel.c
index 877168c..ba27e64 100644
--- a/kernel.c
+++ b/kernel.c
@@ -434,25 +434,25 @@ static void kbdfront_thread(void *p)
 
 static struct pcifront_dev *pci_dev;
 
-static void pcifront_thread(void *p)
+static void print_pcidev(unsigned int domain, unsigned int bus, unsigned int slot, unsigned int fun)
 {
-    void print(unsigned int domain, unsigned int bus, unsigned int slot, unsigned int fun)
-    {
-        unsigned int vendor, device, rev, class;
+    unsigned int vendor, device, rev, class;
 
-        pcifront_conf_read(pci_dev, domain, bus, slot, fun, 0x00, 2, &vendor);
-        pcifront_conf_read(pci_dev, domain, bus, slot, fun, 0x02, 2, &device);
-        pcifront_conf_read(pci_dev, domain, bus, slot, fun, 0x08, 1, &rev);
-        pcifront_conf_read(pci_dev, domain, bus, slot, fun, 0x0a, 2, &class);
+    pcifront_conf_read(pci_dev, domain, bus, slot, fun, 0x00, 2, &vendor);
+    pcifront_conf_read(pci_dev, domain, bus, slot, fun, 0x02, 2, &device);
+    pcifront_conf_read(pci_dev, domain, bus, slot, fun, 0x08, 1, &rev);
+    pcifront_conf_read(pci_dev, domain, bus, slot, fun, 0x0a, 2, &class);
 
-        printk("%04x:%02x:%02x.%02x %04x: %04x:%04x (rev %02x)\n", domain, bus, slot, fun, class, vendor, device, rev);
-    }
+    printk("%04x:%02x:%02x.%02x %04x: %04x:%04x (rev %02x)\n", domain, bus, slot, fun, class, vendor, device, rev);
+}
 
+static void pcifront_thread(void *p)
+{
     pci_dev = init_pcifront(NULL);
     if (!pci_dev)
         return;
     printk("PCI devices:\n");
-    pcifront_scan(pci_dev, print);
+    pcifront_scan(pci_dev, print_pcidev);
 }
 
 static void fs_thread(void *p)