path: root/open_issues/sbcl.mdwn
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authorThomas Schwinge <>2011-09-01 09:27:33 +0200
committerThomas Schwinge <>2011-09-01 09:27:33 +0200
commit3e7472b3d54853389cd8a17475901fbef976ef18 (patch)
treefdd31020d36728fe3c2059fa93a9dfcf7b2c2e87 /open_issues/sbcl.mdwn
parent688fc9d79713c183c0b7ff2bc1717525c773bee9 (diff)
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+[[!meta copyright="Copyright © 2011 Free Software Foundation, Inc."]]
+[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
+id="license" text="Permission is granted to copy, distribute and/or modify this
+document under the terms of the GNU Free Documentation License, Version 1.2 or
+any later version published by the Free Software Foundation; with no Invariant
+Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license
+is included in the section entitled [[GNU Free Documentation
+[[!tag open_issue_porting]]
+IRC, freenode, #hurd, 2011-08-12
+ < zyg> did the segment registers had any purpose? I see fs is set equal to
+ others, but on linux fs is 0 (atleast on this x86 box).
+ < braunr> zyg: it can be used by special applications like wine, yes
+ < zyg> braunr: thanks.. I'm reading up on linux actually. It seems gs can
+ be used for TLS, fs in syscall to pass userspace.
+ < braunr> zyg: why are you interested in that ?
+ < zyg> a native compiler under linux places assumptions on fs register. So
+ I'm trying to find out what it should do under gnumach/hurd.
+ < braunr> what compiler ?
+ < zyg> braunr: it's sbcl
+ < braunr> ok
+ < youpi> zyg: the same, basically
+ < zyg> ok.. looking at the code, I've remarked where it sets up FS, because
+ /usr/include/asm/ldt.h:struct user_desc is missing. I must search for the
+ equiv.
+ < youpi> zyg: mach/i386/mach_i386.h
+ < youpi> the descriptor structure