[Bug faq/5012] New: Why must glibc be compiled with optimizations enabled?

[Bug faq/5012] New: Why must glibc be compiled with optimizations enabled?

[carlos at systemhalted dot org]

The question "Why must glibc be compiled with optimizations enabled?" comes up
often on the mailing list.

The following patch adds an answer to the FAQ.

-- 
           Summary: Why must glibc be compiled with optimizations enabled?
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: faq
        AssignedTo: aj at suse dot de
        ReportedBy: carlos at systemhalted dot org
                CC: glibc-bugs at sources dot redhat dot com
 GCC build triplet: *
  GCC host triplet: *
GCC target triplet: *


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[Bug faq/5012] Why must glibc be compiled with optimizations enabled?

[carlos at systemhalted dot org]

------- Additional Comments From carlos at systemhalted dot org  2007-09-08 16:02 -------
Created an attachment (id=1992)
 --> (http://sourceware.org/bugzilla/attachment.cgi?id=1992&action=view)
Add FAQ entry: Why must glibc be compiled with optimizations enabled?


-- 


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[Bug faq/5012] Why must glibc be compiled with optimizations enabled?

[carlos at systemhalted dot org]

------- Additional Comments From carlos at systemhalted dot org  2007-09-08 16:04 -------
Comments? OK to checkin?

-- 


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[Bug faq/5012] Why must glibc be compiled with optimizations enabled?

[drepper at redhat dot com]

------- Additional Comments From drepper at redhat dot com  2007-10-06 17:02 -------
This comment is not complete.  There are other reasons.  For instance, nested
functions must be inlined in many cases to avoid executable stacks.

-- 


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[Bug faq/5012] Why must glibc be compiled with optimizations enabled?

[aj at suse dot de]

------- Additional Comments From aj at suse dot de  2007-10-28 05:25 -------
patch checked into glibc head.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


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[Bug faq/5012] Why must glibc be compiled with optimizations enabled?

[carlos at systemhalted dot org]

------- Additional Comments From carlos at systemhalted dot org  2008-02-08 14:00 -------
Created an attachment (id=2239)
 --> (http://sourceware.org/bugzilla/attachment.cgi?id=2239&action=view)
Add FAQ entry: Why must glibc be compiled with optimizations enabled?


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
Attachment #1992 is|0                           |1
           obsolete|                            |
         AssignedTo|aj at suse dot de           |carlos at systemhalted dot
                   |                            |org
             Status|RESOLVED                    |ASSIGNED
         Resolution|FIXED                       |


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[Bug faq/5012] Why must glibc be compiled with optimizations enabled?

[carlos at systemhalted dot org]

------- Additional Comments From carlos at systemhalted dot org  2008-02-08 14:01 -------
It doesn't look like this was ever checked into glibc head?

I've updated the patch to include Ulrich's comments about nested functions.

OK to checkin?

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |WAITING


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[Bug faq/5012] Why must glibc be compiled with optimizations enabled?

[carlos at codesourcery dot com]

------- Additional Comments From carlos at codesourcery dot com  2008-02-21 17:33 -------
Ping?

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |ASSIGNED


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[Bug faq/5012] Why must glibc be compiled with optimizations enabled?

[carlos at codesourcery dot com]

------- Additional Comments From carlos at codesourcery dot com  2008-02-21 17:34 -------
Andreas,

I don't see that this was checked in?

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |aj at suse dot de


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[Bug faq/5012] Why must glibc be compiled with optimizations enabled?

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2008-02-22 09:57 -------
Subject: Bug 5012

CVSROOT:	/cvs/glibc
Module name:	libc
Changes by:	aj@sourceware.org	2008-02-22 09:57:19

Modified files:
	.              : FAQ.in 

Log message:
	[BZ #5012]
	* FAQ.in: Describe why glibc needs to be compiled with
	optimization.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/libc/FAQ.in.diff?cvsroot=glibc&r1=1.138&r2=1.139



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[Bug faq/5012] Why must glibc be compiled with optimizations enabled?

[aj at suse dot de]

------- Additional Comments From aj at suse dot de  2008-02-22 10:01 -------
I now checked the version in which was posted here:
http://sourceware.org/ml/libc-hacker/2007-10/msg00023.html


Thanks Carlos!

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://sourceware.org/bugzilla/show_bug.cgi?id=5012

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