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| From: | Markos Chandras <hwoarang@g.o> |
|---|---|
| To: | gentoo-commits@l.g.o |
| Subject: | [gentoo-commits] proj/devmanual:master commit in: general-concepts/pic/ |
| Date: | Sun, 05 Jan 2014 11:14:14 |
| Message-Id: | 1388920362.920c28b1e1f4b1a63e12d48a5db7527ee806b0c4.hwoarang@gentoo |
| 1 | commit: 920c28b1e1f4b1a63e12d48a5db7527ee806b0c4 |
| 2 | Author: Markos Chandras <hwoarang <AT> gentoo <DOT> org> |
| 3 | AuthorDate: Sun Jan 5 11:12:42 2014 +0000 |
| 4 | Commit: Markos Chandras <hwoarang <AT> gentoo <DOT> org> |
| 5 | CommitDate: Sun Jan 5 11:12:42 2014 +0000 |
| 6 | URL: http://git.overlays.gentoo.org/gitweb/?p=proj/devmanual.git;a=commit;h=920c28b1 |
| 7 | |
| 8 | PIC: Improve documentation |
| 9 | |
| 10 | Copy text from |
| 11 | http://www.gentoo.org/proj/en/devrel/handbook/handbook.xml?part=2&chap=1 |
| 12 | and add link to the wiki page. |
| 13 | |
| 14 | --- |
| 15 | general-concepts/pic/text.xml | 8 +++++--- |
| 16 | 1 file changed, 5 insertions(+), 3 deletions(-) |
| 17 | |
| 18 | diff --git a/general-concepts/pic/text.xml b/general-concepts/pic/text.xml |
| 19 | index bc847dd..4c0613c 100644 |
| 20 | --- a/general-concepts/pic/text.xml |
| 21 | +++ b/general-concepts/pic/text.xml |
| 22 | @@ -4,9 +4,11 @@ |
| 23 | <title>Position Independent Code</title> |
| 24 | |
| 25 | <body> |
| 26 | -<todo> |
| 27 | -policy. http://www.gentoo.org/proj/en/hardened/pic-internals.xml has some technical details. |
| 28 | -</todo> |
| 29 | +<p> |
| 30 | +On some architectures, shared libraries must be built with -fPIC. On x86 and others, shared libraries may build without -fPIC. This can be wasteful and potentially cause a performance hit. |
| 31 | +</p> |
| 32 | +<p>If you encounter a package that is not building shared libraries with -fPIC, patch the Makefile to build only the shared libraries with -fPIC. More information on PIC is available at the <uri link="https://wiki.gentoo.org/wiki/Project:Hardened/Position_Independent_Code_internals">PIC internals</uri> wiki page. If you are unsure, please ask in a public developer forum (like the gentoo-dev mailing list or #gentoo-dev irc channel) for help. |
| 33 | +</p> |
| 34 | </body> |
| 35 | |
| 36 | </chapter> |