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List:       net-snmp-coders
Subject:    Linkear a dynamic module to a dynamic library
From:       Juan_Bússoli <juanbussoli () gmail ! com>
Date:       2013-10-25 20:36:27
Message-ID: CAOdOf4QcB=OsLVVTiJPiWWdWgLnRC6M83TjdAPocgMhDdzcP6w () mail ! gmail ! com
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Hello,

I am trying to create a dynamic module for SNMP, which needs use some
functions that are in a dynamic library. To compile the module, I have
modified the Makefile that you provide me in the tutorial "Writing a
Dynamically Loadable Object", as result I got some thing like this:

CC=gcc

all: ./$(MODULE_NAME).c Makefile
$(CC) $(INCLUDES) $(INC_MODULES) $(CFLAGS) $(DLFLAGS) -L $(API_ROOT_DIR)
-Bdynamic -l $(API_ROOT_DIR)/libdinamic.so  -c -o ./$(MODULE_NAME).o
./$(MODULE_NAME).c
$(CC) $(CFLAGS) $(DLFLAGS) -o ./$(MODULE_NAME).so ./$(MODULE_NAME).o

The file "libdinamic.so" is the dynamic library that I intend to link to my
dynamic module. When i do "make", the build is successful. However, when i
try to load the dynamic module it throws the following error:

undefined symbol: my_drvr_load       error

"my_drvr_load" is a function inside the dinamic library. How could I do
this correctly? From already, thank you very much.

Regards,
Juan

[Attachment #5 (text/html)]

<div dir="ltr"><div><div>Hello,</div><div><br></div><div>I am trying to create a \
dynamic module for SNMP, which needs use some functions that are in a dynamic \
library. To compile the module, I have modified the Makefile that you provide me in \
the tutorial &quot;Writing a Dynamically Loadable Object&quot;, as result I got some \
thing like this:</div> \
</div><div><br></div><div><div>CC=gcc</div><div><br></div><div>all: \
./$(MODULE_NAME).c Makefile<br></div><div><span class="" \
style="white-space:pre">	</span>$(CC) $(INCLUDES) $(INC_MODULES) $(CFLAGS) $(DLFLAGS) \
-L $(API_ROOT_DIR) -Bdynamic -l $(API_ROOT_DIR)/libdinamic.so  -c -o \
./$(MODULE_NAME).o ./$(MODULE_NAME).c</div> <div><span class="" \
style="white-space:pre">	</span>$(CC) $(CFLAGS) $(DLFLAGS) -o ./$(MODULE_NAME).so \
./$(MODULE_NAME).o</div></div><div><br></div><div>The file &quot;libdinamic.so&quot; \
is the dynamic library that I intend to link to my dynamic module. When i do \
&quot;make&quot;, the build is successful. However, when i try to load the dynamic \
module it throws the following error:<br> </div><div><br></div><div>undefined symbol: \
my_drvr_load       error<br></div><div><br></div><div><div>&quot;my_drvr_load&quot; \
is a function inside the dinamic library. How could I do this correctly? From \
already, thank you very much.</div> \
<div><br></div><div>Regards,</div><div>Juan</div></div><div><br></div><div><br></div></div>




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