On tis, 2008-05-20 at 09:40 +0800, Tewen Hsieh wrote:
> Hi,
>
> as title~
>
> I am not familiar with writing makefile.
> There is just a scalar sample can be found at net-snmp
> tutorials(http://net-snmp.sourceforge.net/wiki/index.php/Tutorials).
> If I want to write a dynamic loadable object of a table (ex: ifTable),
> how can I write the makefile?
> Is there a makefile template can be referenced?
Not that I am aware of.
When I am to generate a small shared object for testing I usually do as
follows:
net-snmp-config --compile-subagent scalar_int \
/path/to/src/net-snmp/agent/mibgroup/examples/scalar_int.c
in order to get myself a nice command line. This command outputs
generating the tmporary code file: netsnmptmp.14888.c
checking for init_scalar_int in
/path/to/src/net-snmp/agent/mibgroup/examples/scalar_int.c
init_scalar_int(void)
checking for shutdown_scalar_int in
/path/to/src/net-snmp/agent/mibgroup/examples/scalar_int.c
running: gcc -DNETSNMP_ENABLE_IPV6 -g -Ulinux -Dlinux=linux -I/usr/include/rpm
-Wall -Winline -Wstrict-prototypes -Wwrite-strings -Wcast-qual
-Wno-char-subscripts -I. -I/path/to/include -o scalar_int netsnmptmp.14888.c
/path/to/src/net-snmp/agent/mibgroup/examples/scalar_int.c -L/path/to/lib
-lnetsnmpagent -lnetsnmphelpers -lnetsnmpmibs -lnetsnmp
netsnmptmp.14888.c: In function 'main':
netsnmptmp.14888.c:200: warning: implicit declaration of function
'init_scalar_int'
removing the tmporary code file: netsnmptmp.14888.c
subagent program scalar_int created
>From this I take the line running: gcc ... and modifies it by removing
the temp file, changing the name of the output file and adding the
-shared option as follows:
gcc -DNETSNMP_ENABLE_IPV6 -g -Ulinux -Dlinux=linux \
-I/usr/include/rpm -Wall -Winline -Wstrict-prototypes -Wwrite-strings \
-Wcast-qual -Wno-char-subscripts -I. -I/path/to/include \
-o scalar_int.so -shared \
/path/to/src/net-snmp/agent/mibgroup/examples/scalar_int.c \
-L/path/to/lib -lnetsnmpagent -lnetsnmphelpers \
-lnetsnmpmibs -lnetsnmp
/MF
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