Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 16/46] usb gadget: link fixes for serial gadget | Date | Thu, 16 Oct 2008 10:10:17 -0700 |
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From: David Brownell <dbrownell@users.sourceforge.net>
Change how the serial 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> --- drivers/usb/gadget/Makefile | 2 +- drivers/usb/gadget/serial.c | 18 ++++++++++++++++++ 2 files changed, 19 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index fcb5cb9..853dd02 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -26,7 +26,7 @@ C_UTILS = composite.o usbstring.o config.o epautoconf.o g_zero-objs := zero.o f_sourcesink.o f_loopback.o $(C_UTILS) g_ether-objs := ether.o u_ether.o f_subset.o f_ecm.o $(C_UTILS) -g_serial-objs := serial.o u_serial.o f_acm.o f_serial.o $(C_UTILS) +g_serial-objs := serial.o g_midi-objs := gmidi.o usbstring.o config.o epautoconf.o gadgetfs-objs := inode.o g_file_storage-objs := file_storage.o usbstring.o config.o \ diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c index b3699af..3faa7a7 100644 --- a/drivers/usb/gadget/serial.c +++ b/drivers/usb/gadget/serial.c @@ -30,6 +30,24 @@ /*-------------------------------------------------------------------------*/ +/* + * 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 "composite.c" +#include "usbstring.c" +#include "config.c" +#include "epautoconf.c" + +#include "f_acm.c" +#include "f_serial.c" +#include "u_serial.c" + +/*-------------------------------------------------------------------------*/ + /* Thanks to NetChip Technologies for donating this product ID. * * DO NOT REUSE THESE IDs with a protocol-incompatible driver!! Ever!! -- 1.6.0.2
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