30 May, 2018
1 commit
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[ Upstream commit 825d487583089f9a33d31650c9c41f6474aab7fc ]
Some filesystems have timestamps with coarse precision that may allow
for a recently built object file to have the same timestamp as the
updated time on one of its dependency files. When that happens, the
object file doesn't get rebuilt as it should.This is especially the case on filesystems that don't have sub-second
time precision, such as ext3 or Ext4 with 128B inodes.Let's prevent that by making sure updated dependency files have a newer
timestamp than the first file we created (i.e. autoksyms.h.tmpnew).Reported-by: Thomas Lindroth
Signed-off-by: Nicolas Pitre
Tested-by: Thomas Lindroth
Signed-off-by: Masahiro Yamada
Signed-off-by: Sasha Levin
Signed-off-by: Greg Kroah-Hartman
12 Dec, 2016
1 commit
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When CONFIG_TRIM_UNUSED_KSYMS=y and no modules are actually selected,
the adjust_autoksyms.sh script fails with:sed: can't read .tmp_versions/*.mod: No such file or directory
Let's cope with that case gracefully.
Signed-off-by: Nicolas Pitre
Signed-off-by: Michal Marek
10 May, 2016
1 commit
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When only one symbol was listed and therefore the line didn't contain
any space to separate multiple symbols, that symbol got ignored.Reported-by: Arnd Bergmann
Signed-off-by: Nicolas Pitre
Signed-off-by: Michal Marek
30 Mar, 2016
1 commit
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Given the list of exported symbols needed by all modules, we can create
a header file containing preprocessor defines for each of those symbols.
Also, when some symbols are added and/or removed from the list, we can
update the time on the corresponding files used as build dependencies for
those symbols. And finally, if any symbol did change state, the
corresponding source files must be rebuilt.The insertion or removal of an EXPORT_SYMBOL() entry within a module may
create or remove the need for another exported symbol. This is why this
operation has to be repeated until the list of needed exported symbols
becomes stable. Only then the final kernel and modules link take place.Signed-off-by: Nicolas Pitre
Acked-by: Rusty Russell