Issues in adding a new API function in pthread

[Dongyoon Lee]

First of all, I appreciate your advice. Can I ask one more?
I checked the symbols in the DSO, but they seem to be fine. However, I
still have trouble adding new API.
Plus, I tested setschedprio function in the GLIB_2.3.4 but I got the same errors

[root@localhost TMP]# gcc d.c -o d -lpthread
/tmp/ccEeiBLd.o(.text+0x179): In function `main':
: undefined reference to `pthread_setschedprio'
collect2: ld returned 1 exit status

Other general APIs such as pthread_create, pthread_mutex_lock, etc.
work well, and in order to add pthread_log2() API, I modified as
follows.

-------------------------------------------------------------------------------------------------------------------------
1. abilist\libpthread.abilist

[ADD]  __pthread_log2 F

[ADD] pthread_log2 F

2. conform\data\pthread.h-data

[ADD] function int pthread_log2(int)

3. nptl\Makefile

[ADD in libpthread-routines] pthread_log2

4. nptl\pthreadP.h

[ADD] extern int __pthread_log2(int on);

5. nptl\pthread_log2.c

#include <errno.h>
#include "pthreadP.h"
#include <lowlevellock.h>

int
__pthread_log2 (on)
     int on;
{
	return 0;
}
strong_alias (__pthread_log2, pthread_log2)

6. nptl\Versions

[ADD] pthread_log2;

7. nptl\sysdeps\pthread\pthread.h

[ADD] extern int pthread_log2 (int on) __THROW;
-------------------------------------------------------------------------------------------------------------------------



FYI, here is my system information and output of readelf...
-------------------------------------------------------------------------------------------------------------------------
Operating System        CentOS 4.6 (x86_64), Linux version 2.6.9-67.Elsmp
gcc version     3.4.6 20060404 (Red Hat 3.4.6-9)
glibc (pthread) src     glibc-2.3.4-2.39.src.rpm

-------------------------------------------------------------------------------------------------------------------------
#readelf -a /lib64/tls/libpthread.so.0

ELF Header:
  Magic:   7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00
  Class:                             ELF64
  Data:                              2's complement, little endian
  Version:                           1 (current)
  OS/ABI:                            UNIX - System V
  ABI Version:                       0
  Type:                              DYN (Shared object file)
  Machine:                           Advanced Micro Devices X86-64
  Version:                           0x1
  Entry point address:               0x3b34405750

....(omitted)....

   249: 0000003b344081c0     3 FUNC    GLOBAL DEFAULT   12
pthread_log2@@GLIBC_2.2.5

....(omitted)....

   148: 0000000000000000     0 FILE    LOCAL  DEFAULT  ABS pthread_log2.c

....(omitted)....

  1086: 0000003b344081c0     3 FUNC    LOCAL  DEFAULT   12 __pthread_log2

....(omitted)....

  1397: 0000003b344081c0     3 FUNC    GLOBAL DEFAULT   12 pthread_log2

....(omitted)....

- Dongyoon