nanogui: Re: linking nano-x problem and performance enh.
Subject:
Re: [nanogui] linking nano-x problem and performance enh.
From:
"Finn S. Nielsen" ####@####.####
Date:
10 Feb 2005 00:02:44 +0000
Message-Id: <002101c50f04$083d0630$0a2ca8c0@FNIBM>
Hi Greg,
Thank for you answer. Seems that to enable the use of another libc library like that from uClibc, in uClinux in makefiles in general, there is the make variable LDLIBS, which
is set to the standard libraries. This variable appears at the end of the command line (thanks for pointing it out ;-o) . So I've added this to all the makefiles in microwindows.. (argh..).
So now it builds better. There is just two errors left, as you can see from the output below. Seems something is missing definewise.. ?? Any suggestions ?
When I get microwindows to compile and run OK, I may get the make adaptation added to the uClinux source tree, so that folks out there doing embedded systems can use the newest microwindows code - I guess that's also what it's all about.. using microwindows on embedded platforms.
A more interesting question. How much performance gain do you think one would achieve by implementing the basic drawing primitives in hardware, like the plot x,y
and the straight line drawing functions ? When I test microwindows in the TCP/IP client/server configuration (never manged to get the server linked to the app in the older version), I see something like a factor 10 difference in straight line drawing performance (on the main widow), compared to a dedicated (non-OS'ed) C program doing the same thing and drawing lines using plot x,y function. Performance is alfa and omega when you are restricted to a 50-150 Mhz range CPU and want nice graphics looks for MMI aplications where often you have a lot of image updates to do - and perhaps all the time (like in a VU-meter for example).
Best regards,
Finn S. Nielsen
Denmark.
Linking nano-X ...
mb-gcc -Os -g -fomit-frame-pointer -Dlinux -D__linux__ -Dunix -D__uClinux__ -DEMBED -I/home/fn/uClinux-dist/
lib/uClibc/include -I/home/fn/uClinux-dist/lib/libm -I/home/fn/uClinux-dist/lib/libcrypt_old -I/home/fn/uClinu
x-dist -fno-builtin -mno-xl-soft-mul -mno-xl-soft-div -mxl-barrel-shift -I/home/fn/uClinux-dist/linux-2.4.x/in
clude -I. -I/home/fn/uClinux-dist/user/microwin/src/include -I. -I/home/fn/uClinux-dist/user/microwin/src/incl
ude -Os -g -fomit-frame-pointer -Dlinux -D__linux__ -Dunix -D__uClinux__ -DEMBED -I/home/fn/uClinux-dist/lib
/uClibc/include -I/home/fn/uClinux-dist/lib/libm -I/home/fn/uClinux-dist/lib/libcrypt_old -I/home/fn/uClinux-d
ist -fno-builtin -mno-xl-soft-mul -mno-xl-soft-div -mxl-barrel-shift -I/home/fn/uClinux-dist/linux-2.4.x/inclu
de -Wl,-elf2flt -nostartfiles /home/fn/uClinux-dist/lib/uClibc/lib/crt0.o -nostdlib -L/home/fn/uClinux-dist/li
b/uClibc/. -L/home/fn/uClinux-dist/lib/uClibc/lib -L/home/fn/uClinux-dist/lib/libm -L/home/fn/uClinux-dist/lib
/libnet -L/home/fn/uClinux-dist/lib/libdes -L/home/fn/uClinux-dist/lib/libaes -L/home/fn/uClinux-dist/lib/libp
cap -L/home/fn/uClinux-dist/lib/libssl -L/home/fn/uClinux-dist/lib/libcrypt_old -L/home/fn/uClinux-dist/lib/zl
ib -L/home/fn/uClinux-dist/user/microwin/src/lib -L/home/fn/uClinux-dist/user/microwin/src/lib -lgcc -lc -o /
home/fn/uClinux-dist/user/microwin/src/bin/nano-X /home/fn/uClinux-dist/user/microwin/src/obj/engine/devopen.
o /home/fn/uClinux-dist/user/microwin/src/obj/engine/devdraw.o /home/fn/uClinux-dist/user/microwin/src/obj/eng
ine/devfont.o /home/fn/uClinux-dist/user/microwin/src/obj/engine/devmouse.o /home/fn/uClinux-dist/user/microwi
n/src/obj/engine/devkbd.o /home/fn/uClinux-dist/user/microwin/src/obj/engine/devclip.o /home/fn/uClinux-dist/u
ser/microwin/src/obj/engine/devrgn.o /home/fn/uClinux-dist/user/microwin/src/obj/engine/devpal1.o /home/fn/uCl
inux-dist/user/microwin/src/obj/engine/devpal2.o /home/fn/uClinux-dist/user/microwin/src/obj/engine/devimage.o
/home/fn/uClinux-dist/user/microwin/src/obj/engine/devlist.o /home/fn/uClinux-dist/user/microwin/src/obj/engi
ne/selfont.o /home/fn/uClinux-dist/user/microwin/src/obj/engine/error.o /home/fn/uClinux-dist/user/microwin/sr
c/obj/engine/devrgn2.o /home/fn/uClinux-dist/user/microwin/src/obj/engine/devarc.o /home/fn/uClinux-dist/user/
microwin/src/obj/engine/devpoly.o /home/fn/uClinux-dist/user/microwin/src/obj/engine/devstipple.o /home/fn/uCl
inux-dist/user/microwin/src/obj/engine/font_dbcs.o /home/fn/uClinux-dist/user/microwin/src/obj/engine/font_fnt
.o /home/fn/uClinux-dist/user/microwin/src/obj/engine/font_pcf.o /home/fn/uClinux-dist/user/microwin/src/obj/e
ngine/devtimer.o /home/fn/uClinux-dist/user/microwin/src/obj/engine/devpal8.o /home/fn/uClinux-dist/user/micro
win/src/obj/engine/devpal4.o /home/fn/uClinux-dist/user/microwin/src/obj/fonts/rom8x16.o /home/fn/uClinux-dist
/user/microwin/src/obj/fonts/rom8x8.o /home/fn/uClinux-dist/user/microwin/src/obj/fonts/winFreeSansSerif11x13.
o /home/fn/uClinux-dist/user/microwin/src/obj/fonts/winFreeSystem14x16.o /home/fn/uClinux-dist/user/microwin/s
rc/obj/fonts/X6x13.o /home/fn/uClinux-dist/user/microwin/src/obj/drivers/fblin8.o /home/fn/uClinux-dist/user/m
icrowin/src/obj/drivers/fblin16.o /home/fn/uClinux-dist/user/microwin/src/obj/drivers/fblin24.o /home/fn/uClin
ux-dist/user/microwin/src/obj/drivers/fblin32.o /home/fn/uClinux-dist/user/microwin/src/obj/drivers/fblin32alp
ha.o /home/fn/uClinux-dist/user/microwin/src/obj/drivers/genmem.o /home/fn/uClinux-dist/user/microwin/src/obj/
drivers/fb.o /home/fn/uClinux-dist/user/microwin/src/obj/drivers/fblin1.o /home/fn/uClinux-dist/user/microwin/
src/obj/drivers/fblin2.o /home/fn/uClinux-dist/user/microwin/src/obj/drivers/genfont.o /home/fn/uClinux-dist/u
ser/microwin/src/obj/drivers/scr_fb.o /home/fn/uClinux-dist/user/microwin/src/obj/drivers/fbportrait_left.o /h
ome/fn/uClinux-dist/user/microwin/src/obj/drivers/fbportrait_right.o /home/fn/uClinux-dist/user/microwin/src/o
bj/drivers/fbportrait_down.o /home/fn/uClinux-dist/user/microwin/src/obj/drivers/fblin4.o /home/fn/uClinux-dis
t/user/microwin/src/obj/drivers/mou_null.o /home/fn/uClinux-dist/user/microwin/src/obj/drivers/kbd_null.o /hom
e/fn/uClinux-dist/user/microwin/src/obj/nanox/srvmain.o /home/fn/uClinux-dist/user/microwin/src/obj/nanox/srvf
unc.o /home/fn/uClinux-dist/user/microwin/src/obj/nanox/srvutil.o /home/fn/uClinux-dist/user/microwin/src/obj/
nanox/srvevent.o /home/fn/uClinux-dist/user/microwin/src/obj/nanox/srvclip.o /home/fn/uClinux-dist/user/microw
in/src/obj/nanox/srvnet.o /home/fn/uClinux-dist/user/microwin/src/lib/libmwengine.a /home/fn/uClinux-dist/user
/microwin/src/lib/libmwdrivers.a /home/fn/uClinux-dist/user/microwin/src/lib/libmwfonts.a -lc /usr/local/micr
oblaze-elf-tools/bin/../lib/gcc-lib/microblaze/2.95.3-4/./libgcc.a /usr/local/microblaze-elf-tools/bin/../lib/
gcc-lib/microblaze/2.95.3-4/./../../../../microblaze/lib/libc_hard_shift.a -lc
/home/fn/uClinux-dist/user/microwin/src/bin/nano-X.elf2flt: In function `GdCreateFont':
/home/fn/uClinux-dist/user/microwin/src/engine/devfont.c:95: undefined reference to `strcmpi'
/home/fn/uClinux-dist/user/microwin/src/bin/nano-X.elf2flt: In function `main':
/home/fn/uClinux-dist/user/microwin/src/nanox/srvmain.c:130: undefined reference to `GsSelect'
make[4]: *** [/home/fn/uClinux-dist/user/microwin/src/bin/nano-X] Error 1
make[4]: Leaving directory `/home/fn/uClinux-dist/user/microwin/src/nanox'
----- Original Message -----
From: "Greg Haerr" ####@####.####
To: "Finn S. Nielsen" ####@####.#### ####@####.####
Sent: Wednesday, February 09, 2005 11:21 PM
Subject: Re: [nanogui] linking nano-x problem
> It appears that the -lc is in the link command line before
> the *.o files. Perhaps you should remove -lc from LDFLAGS
> and have gcc insert it automatically.
>
> Regards,
>
> Greg
>
