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author | Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> | 2005-06-22 00:16:25 (GMT) |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-22 02:07:32 (GMT) |
commit | 60b2737de1b1ddfdb90f3ba622634eb49d6f3603 (patch) | |
tree | a352eda5ca213cdae0a2eabd6693b8a4f573e38f /arch/um/scripts/Makefile.unmap | |
parent | b77d6adc922b8bbf8b16b67f567958c42962cf88 (diff) | |
download | linux-fsl-qoriq-60b2737de1b1ddfdb90f3ba622634eb49d6f3603.tar.xz |
[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>
Diffstat (limited to 'arch/um/scripts/Makefile.unmap')
-rw-r--r-- | arch/um/scripts/Makefile.unmap | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/um/scripts/Makefile.unmap b/arch/um/scripts/Makefile.unmap new file mode 100644 index 0000000..37a8f97 --- /dev/null +++ b/arch/um/scripts/Makefile.unmap @@ -0,0 +1,22 @@ +clean-files += unmap_tmp.o unmap_fin.o unmap.o + +ifdef CONFIG_MODE_TT + +#Always build unmap_fin.o +extra-y += unmap_fin.o +#Do dependency tracking for unmap.o (it will be always built, but won't get the tracking unless we use this). +targets += unmap.o + +#XXX: partially copied from arch/um/scripts/Makefile.rules +$(obj)/unmap.o: _c_flags = $(call unprofile,$(CFLAGS)) + +quiet_cmd_wrapld = LD $@ +define cmd_wrapld + $(LD) -r -o $(obj)/unmap_tmp.o $< $(shell $(CC) -print-file-name=libc.a); \ + $(OBJCOPY) $(obj)/unmap_tmp.o $@ -G switcheroo +endef + +$(obj)/unmap_fin.o : $(obj)/unmap.o FORCE + $(call if_changed,wrapld) + +endif |