Vincent,
I did what you suggested but it doesn't place the libraries in the right gcc
parameters
order: if you look below, when it calls gcc to do the linking, the libraries
"./mylib.a -lm -lc -lrt -ldl" are place right after gcc (near the front); it
should be
at the end (near "-lpthread). Why isn't around the lopts placed near the end?
# lnk470MV app.x470MV ...
/opt/dvevm_1_10/xdctools_1_21/packages/xdc/bld/link
/opt/mv_pro_4.0/montavista/pro/dev
kit/arm/v5t_le/armv5tl-montavista-linuxeabi/bin/gcc ./mylib.a -lm -lc
-lrt -ldl -o app.x470MV package/cfg/loopback/audioManager.o470MV
package/cfg/lo
opback/loopback.o470MV package/cfg/loopback/main_native.o470MV
package/cfg/loopback_x4
70MV.o470MV package/cfg/loopback_x470MV.xdl
-B/opt/mv_pro_4.0/montavista/pro/devkit/a
rm/v5t_le/armv5tl-montavista-linuxeabi/../lib/gcc/armv5tl-montavista-linuxeabi/3.4.3/
-lpthread
-L/opt/mv_pro_4.0/montavista/pro/devkit/arm/v5t_le/armv5tl-montavista-linux
eabi/lib
I added
lopts: " ../mylib.a -lm -lc -lrt -ldl ",
to Pkg.addExecutable in package bld.
Thanks.
Regards,
Andy
----- Original Message ----
From: "Wan, Vincent" <[EMAIL PROTECTED]>
To: Andy Ngo <[EMAIL PROTECTED]>
Cc: davinci-linux-open-source <[email protected]>
Sent: Friday, January 26, 2007 5:21:05 PM
Subject: RE: Linking/mapping data to IRAM or L1SDRAM on the DSP
Hi Andy,
You can try this:
In package.bld, set the lopts (linker options) in the addExecutable call:
….
if (targ.os == "Linux") {
libraries = "-lm";
}
else {
libraries = "";
}
Pkg.addExecutable(name, targ, plat, {
cfgScript: cfg,
lopts: libraries,
….
Fyi, there is also something called copts that allows you to set compiler flags.
Alternatively, if you are more comfortable with makefiles, you can take a look
at the video_copy/dualcpu example to see how you can directly specify –lm, etc.
next to the rule for app.out, where –lphread is specified.
Best regards,
Vincent
From: Andy Ngo [mailto:[EMAIL PROTECTED]
Sent: Thursday, January 25, 2007 2:16 PM
To: Wan, Vincent
Cc: davinci-linux-open-source
Subject: Re: Linking/mapping data to IRAM or L1SDRAM on the DSP
Hi Vincent,
Thanks for you help. I have another question that maybe you can help. I want
to add
a library (i.e. mylib.a) to the ARM application but I couldn't figure it out.
I know I need
to modify the package.bld file. For example, in the
dvevm_1_10/codec_engine_1_02/examples/apps/speech_copy folder, I see all the
source files are added in package.bld via Pkg.addobjects). How do I add my
library
and other system libraries (like -lm -lc -ldl -rt). Otherwise, I have to
manually modify
the package.mak that automatically gets generated (my changes get wiped out if I
modify package.bld again).
Thanks!
Regards,
Andy_______________________________________________
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