Messages in this thread |  | | From | (Thomas Koenig) | Subject | Re: 2.1.22 unneeded global symbols | Date | 25 Jan 1997 19:05:51 +0100 |
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In linux.dev.kernel, alan@lxorguk.ukuu.org.uk (Alan Cox) wrote:
>Its wrong. Your script needs to handle inline function export names and >also assembler and references buried in include files. Also function >names used as variables and passed directly or indirectly to functions.
If you want to pass a pointer to a variable to somewhere else, it doesn't have to be extern; it can be made static.
In other words, code like
foo.h:
char *foo_msg(void);
foo.c:
#include "foo.h"
static char msg[]="This is an important message."
char *foo_msg() { return msg; }
is perfectly all right, and doesn't pollute the global namespace with the variable "msg".
You can pass addresses to static functions the same way.
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