60b2737de1
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>
23 lines
620 B
Makefile
23 lines
620 B
Makefile
clean-files += unmap_tmp.o unmap_fin.o unmap.o
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ifdef CONFIG_MODE_TT
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#Always build unmap_fin.o
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extra-y += unmap_fin.o
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#Do dependency tracking for unmap.o (it will be always built, but won't get the tracking unless we use this).
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targets += unmap.o
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#XXX: partially copied from arch/um/scripts/Makefile.rules
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$(obj)/unmap.o: _c_flags = $(call unprofile,$(CFLAGS))
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quiet_cmd_wrapld = LD $@
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define cmd_wrapld
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$(LD) -r -o $(obj)/unmap_tmp.o $< $(shell $(CC) -print-file-name=libc.a); \
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$(OBJCOPY) $(obj)/unmap_tmp.o $@ -G switcheroo
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endef
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$(obj)/unmap_fin.o : $(obj)/unmap.o FORCE
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$(call if_changed,wrapld)
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endif
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