[PATCH] uml: fix linkage of tt mode against NPTL
With Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
To make sure switcheroo() can execute when we remap all the executable
image, we used a trick to make it use a local copy of errno... this trick
does not work with NPTL glibc, only with LinuxThreads, so use another
(simpler) one to make it work anyway.
Hopefully, a lot improved thanks to merging with the version of Al Viro
(which had his part of problems, though, i.e. removing a fix to another
bug and not fixing the problem on i386).
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S
index dd53555..61dfd4f 100644
--- a/arch/um/kernel/uml.lds.S
+++ b/arch/um/kernel/uml.lds.S
@@ -14,19 +14,10 @@
/* Used in arch/um/kernel/mem.c. Any memory between START and __binary_start
* is remapped.*/
__binary_start = .;
-#ifdef MODE_TT
- .thread_private : {
- __start_thread_private = .;
- errno = .;
- . += 4;
- arch/um/kernel/tt/unmap_fin.o (.data)
- __end_thread_private = .;
- }
- . = ALIGN(4096);
- .remap : { arch/um/kernel/tt/unmap_fin.o (.text) }
- /* We want it only if we are in MODE_TT. In both cases, however, when MODE_TT
- * is off the resulting binary segfaults.*/
+#ifdef MODE_TT
+ .remap_data : { arch/um/sys-SUBARCH/unmap_fin.o (.data .bss) }
+ .remap : { arch/um/sys-SUBARCH/unmap_fin.o (.text) }
. = ALIGN(4096); /* Init code and data */
#endif