17 messages in org.freebsd.freebsd-currentRe: World breakage in libc_r?| From | Sent On | Attachments |
|---|---|---|
| John Polstra | Oct 13, 1999 2:36 pm | |
| Doug Rabson | Oct 14, 1999 1:08 am | |
| Marcel Moolenaar | Oct 14, 1999 3:16 am | |
| Wilko Bulte | Oct 14, 1999 9:45 am | |
| Kenneth Wayne Culver | Oct 14, 1999 12:09 pm | |
| Daniel Eischen | Oct 14, 1999 12:20 pm | |
| John Polstra | Oct 14, 1999 2:06 pm | |
| John Birrell | Oct 14, 1999 2:19 pm | |
| Daniel Eischen | Oct 14, 1999 2:34 pm | |
| John Polstra | Oct 14, 1999 2:44 pm | |
| John Birrell | Oct 14, 1999 2:53 pm | |
| Daniel Eischen | Oct 14, 1999 3:25 pm | |
| David O'Brien | Oct 15, 1999 8:38 am | |
| Wilko Bulte | Oct 15, 1999 11:09 am | |
| John Birrell | Oct 15, 1999 3:07 pm | |
| pa...@phoenix.volant.org | Oct 15, 1999 3:23 pm | |
| John Polstra | Oct 17, 1999 10:16 am |
| Subject: | Re: World breakage in libc_r? | |
|---|---|---|
| From: | John Polstra (jd...@polstra.com) | |
| Date: | Oct 14, 1999 2:44:45 pm | |
| List: | org.freebsd.freebsd-current | |
John Polstra wrote:
One of the things on my wish list is a libpthread that can be linked with libc. So the way to accomplish this is to have null hooks with weak symbols in libc, and provide the same (non-null) functions in libpthread but with strong symbols?
Oh, maybe, but be careful. Weak symbols don't solve very many kinds of problems, but they can sure cause a lot of trouble. I don't have time to work through this case in detail right now. But think about whether a call to read() from inside libc will get the correct version in all cases. Consider both static and dynamic linking too -- they don't behave quite the same. There are lots of potential gotchas. Sorry to be so brief. I can help more with this after FreeBSDCon.
John
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