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Adding a new function to memcpy.c
- From: "Rodrigo Dominguez" <roddomi at hotmail dot com>
- To: libc-help at sourceware dot org
- Date: Thu, 07 Aug 2008 15:40:11 -0400
- Subject: Adding a new function to memcpy.c
I am trying to create a new library function which I want to call memcpy_TC.
I want memcpy_TC to be an exact clone of memcpy. I made the corresponding
modifications to string/memcpy.c, string/string.h and include/string.h to
include my new function. I also removed sysdeps/.../memcpy.S. However, after
I build, memcpy_TC is defined as a local symbol in libc.so:
$nm ../glibc-obj/libc.so | grep memcpy
0006ebc0 t __GI_memcpy
0006ec10 t __GI_memcpy_TC
0006ebc0 T memcpy
0006ec10 t memcpy_TC
I tracked back the build process and I found that libc.so is built from
libc_pic.os. What I find very strange is that memcpy_TC is defined as a
global symbol in libc_pic.os. How can it change from global to local during
the linking of libc.so? Am I missing something here?