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link a new .so with an existing .so

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Old 05-27-2003
link a new .so with an existing .so
I have an existing C module that already built libudf.so
Now I have modify this module to call a third party software function (which is new.so), and re build to target to libudf.so

I compiled that includes all header files of third party software.
Linking to new.so is also good,

But when I try to run some application to use libudf.so, It fails

Belew is my log:


Compiling ../src/udf.c on sunos5...
cc -DNNM6.2 -misalign -erroff=E_INIT_DOES_NOT_FIT -KPIC -mt -DSOLARIS -DYES_ARGS -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1 -D__EXTENSIONS__ -xO3 -DSOLARIS -I. -I../hdrs -I/vobs/com.pr/make.su/hdrs -I/vobs/pnm/thirdparty/ICU/unix/include -c ../src/udf.c

Linking
CC -G -misalign -L/vobs/mz.pr/libs/hp -L/vobs/new`lorder udf.o |tsort` -o libudf.so -lnew -h libudf.so
chmod 755 libudf.so

which /vobs/new stores new.so
I/vobs/pnm/thirdparty/ICU/unix/include stores header files of new

Would you help ?
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LEARN ABOUT OPENSOLARIS

mod_remove

mod_install(9F) 					   Kernel Functions for Drivers 					   mod_install(9F)

NAME

       mod_install, mod_remove, mod_info, mod_modname - add, remove or query a loadable module

SYNOPSIS

       #include <sys/modctl.h>

       int mod_install(struct modlinkage *modlinkage);

       int mod_remove(struct modlinkage *modlinkage);

       int mod_info(struct modlinkage *modlinkage,
	    struct modinfo *modinfo);

       const char *mod_modname(struct modlinkage *modlinkage);

INTERFACE LEVEL

       Solaris DDI specific (Solaris DDI).

PARAMETERS

       modlinkage    Pointer  to  the  loadable module's modlinkage structure which describes what type(s) of module elements are included in this
		     loadable module.

       modinfo	     Pointer to the modinfo structure passed to _info(9E).

DESCRIPTION

       mod_install() must be called from a module's _init(9E) routine.

       mod_remove() must be called from a module's _fini(9E) routine.

       mod_info() must be called from a module's _info(9E) routine.

       mod_modname() can be called from any module routine.

       When _init(9E) is executing, its call to mod_install() enables other threads to call attach(9E) even prior to mod_install()  returning  and
       _init(9E)  completion.  From  a	programming  standpoint this means that all _init(9E) initialization must occur prior to _init(9E) calling
       mod_install(). If mod_install() fails (non-zero return value), any initialization must be undone.

       When _fini(9E) is executing, another thread may call attach(9E) prior to _fini(9E) calling mod_remove(). If this occurs,  the  mod_remove()
       fails  (non-zero  return). From a programming standpoint, this means that _init(9E) initilizations should only be undone after a successful
       return from mod_remove().

       To query the name of a module, use mod_modname(). If the module is a driver, the module name is the same as the driver name. This  function
       can  be	used  to  avoid  compiled-in  knowledge  of the module name, and is of particular use when _init(9E) needs to call a function like
       kstat_create(9F).

RETURN VALUES

       mod_install() and mod_remove() return 0 upon success and non-zero on failure.

       mod_info() returns a non-zero value on success and  0 upon failure.

       mod_modname() returns the name of the module. The returned name remains valid as long as the module remains loaded.

EXAMPLES

       See _init(9E) for an example that uses these functions.

SEE ALSO

       _fini(9E), _info(9E), _init(9E), kstat_create(9F), modldrv(9S), modlinkage(9S), modlstrmod(9S)

       Writing Device Drivers

SunOS 5.11							    8 Jul 2008							   mod_install(9F)