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authorDavid Brownell <dbrownell@users.sourceforge.net>2008-08-18 17:43:25 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2008-10-16 09:24:46 -0700
commit352e2b961c885b98065c402e2ad85057d0a334b2 (patch)
tree9567028b1ed8158eff6b0241066bc9694bd33b12 /drivers/usb/gadget
parent0a56b03f68d93ddaaaf11281fed9a7940ff62216 (diff)
usb gadget: link fixes for storage gadget
Change how the file storage gadget driver builds: don't use separate compilation, since it works poorly when key parts are library code (with init sections etc). Instead be as close as we can to "gcc --combine ...". Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget')
-rw-r--r--drivers/usb/gadget/Makefile3
-rw-r--r--drivers/usb/gadget/file_storage.c12
2 files changed, 13 insertions, 2 deletions
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index 99956b79bdf..736d58fe941 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -29,8 +29,7 @@ g_ether-objs := ether.o u_ether.o f_subset.o f_ecm.o $(C_UTILS)
g_serial-objs := serial.o
g_midi-objs := gmidi.o
gadgetfs-objs := inode.o
-g_file_storage-objs := file_storage.o usbstring.o config.o \
- epautoconf.o
+g_file_storage-objs := file_storage.o
g_printer-objs := printer.o
g_cdc-objs := cdc2.o u_ether.o f_ecm.o \
u_serial.o f_acm.o $(C_UTILS)
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index ea2c31d1808..0c632d22a63 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -245,6 +245,18 @@
#include "gadget_chips.h"
+
+/*
+ * Kbuild is not very cooperative with respect to linking separately
+ * compiled library objects into one module. So for now we won't use
+ * separate compilation ... ensuring init/exit sections work to shrink
+ * the runtime footprint, and giving us at least some parts of what
+ * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
+ */
+#include "usbstring.c"
+#include "config.c"
+#include "epautoconf.c"
+
/*-------------------------------------------------------------------------*/
#define DRIVER_DESC "File-backed Storage Gadget"