[8u] RFR 8036003: Add --with-native-debug-symbols=[none|internal|external|zipped]
Severin Gehwolf
sgehwolf at redhat.com
Wed Jul 18 13:42:13 UTC 2018
Hi Erik,
Latest webrev with default param over changes in the jdk tree:
http://cr.openjdk.java.net/~sgehwolf/webrevs/JDK-8036003/webrev.02/
Thanks,
Severin
On Tue, 2018-07-17 at 09:16 -0700, Erik Joelsson wrote:
> That should work, but if it doesn't, please try double dollar on
> $(STRIP_POLICY). Then it gets evaluated when the macro is called instead
> of when it is defined.
>
> /Erik
>
>
> On 2018-07-17 09:01, Severin Gehwolf wrote:
> > Hi Erik,
> >
> > On Tue, 2018-07-17 at 07:24 -0700, Erik Joelsson wrote:
> > > Good work backporting the proper fix!
> >
> > Thanks for the review!
> >
> > > I think it would be good if you could make $1_STRIP_POLICY default to
> > > $(STRIP_POLICY) in SetupNativeCompilation instead of setting it as
> > > parameter basically everywhere. That shouldn't change the default
> > > behavior anywhere I think?
> >
> > How would I do that? No values from spec.gmk seem to be available in
> > SetupNativeCompilation. For example, this doesn't work (with the params
> > passed in in the jdk repo reverted):
> >
> > diff --git a/make/common/NativeCompilation.gmk b/make/common/NativeCompilation.gmk
> > --- a/make/common/NativeCompilation.gmk
> > +++ b/make/common/NativeCompilation.gmk
> > @@ -260,6 +260,10 @@
> > $1_CC:=$(CC)
> > endif
> >
> > + ifeq ($$($1_STRIP_POLICY),)
> > + $1_STRIP_POLICY:=$(STRIP_POLICY)
> > + endif
> > +
> > # Make sure the dirs exist.
> > $$(eval $$(call MakeDir,$$($1_OBJECT_DIR) $$($1_OUTPUT_DIR)))
> > $$(foreach d,$$($1_SRC), $$(if $$(wildcard $$d),,$$(error SRC specified to SetupNativeCompilation $1 contains missing directory $$d)))
> >
> > Thanks,
> > Severin
> >
> > > On 2018-07-17 05:54, Severin Gehwolf wrote:
> > > > Hi,
> > > >
> > > > This work started as a patch for JDK-8207234[1], but turned out to
> > > > become a 8-backport of JDK-8036003[2] using the old build logic and
> > > > with backwards-compatibilty. We are facing an issue where
> > > > .gnu_debuglink sections get generated unconditionally on the various
> > > > JDK libs (serviceability, security, nio, awt, etc.). That's an issue,
> > > > since for our distro builds the stripping happens outside the OpenJDK
> > > > build post-factum. The result of adding debug links unconditionally is
> > > > that our binaries would have two links, one pointing to a file which
> > > > doesn't exist.
> > > >
> > > > What's more, there is no real support for the kind of debug-info build
> > > > we need as downstream distribution consumers: Have all debug symbols
> > > > present, but leave them in the binary/library itself without any
> > > > stripping. That's basically what JDK 11's --with-native-debug-
> > > > symbols=internal does. This patch ports that configure flag to JDK 8u
> > > > and keeps backward-compatibility with --disable-debug-symbols and --
> > > > disable-zip-debug-info flags. More info on this in [1].
> > > >
> > > > Bug(s): https://bugs.openjdk.java.net/browse/JDK-8207234
> > > > https://bugs.openjdk.java.net/browse/JDK-8036003
> > > > webrev: http://cr.openjdk.java.net/~sgehwolf/webrevs/JDK-8207234/01/
> > > >
> > > > Testing:
> > > >
> > > > Tested all build configs that I could think of (on Linux x86_64):
> > > > * Old config is being preserved (default build of debug symbols +
> > > > zipped; no --disable-zip-debug-info, --disable-debug-symbols, --
> > > > with-native-debug-symbols flags)
> > > > * Plain external debug symbols (flag --disable-zip-debug-info)
> > > > * No debug-symbols build (flags --disable-zip-debug-info, --disable-
> > > > debug-symbols)
> > > > * Only using --with-native-debug-
> > > > symbols={none,zipped,external,internal} (no flags --disable-zip-
> > > > debug-info, --disable-debug-symbols). Where "internal" passes tests
> > > > in JDK-8207234
> > > >
> > > > Examples:
> > > >
> > > > configure output post-patch with flags --disable-zip-debug-info, --
> > > > disable-debug-symbols:
> > > >
> > > > [...]
> > > > checking if we should generate debug symbols... false
> > > > checking if we should zip debug-info files... no
> > > > checking what type of native debug symbols to use (this will override previous settings)... not specified
> > > > configure: --with-native-debug-symbols not specified. Using values from --disable-debug-symbols and --disable-zip-debug-info
> > > > [...]
> > > >
> > > > configure output post-patch with flags --with-native-debug-
> > > > symbols=internal:
> > > >
> > > > [...]
> > > > checking if we should generate debug symbols... true
> > > > checking if we should zip debug-info files... yes
> > > > checking what type of native debug symbols to use (this will override previous settings)... internal
> > > > [...]
> > > >
> > > > configure output post-patch with flags --with-native-debug-
> > > > symbols=foobar:
> > > >
> > > > [...]
> > > > checking if we should generate debug symbols... true
> > > > checking if we should zip debug-info files... yes
> > > > checking what type of native debug symbols to use (this will override previous settings)... foobar
> > > > configure: error: Allowed native debug symbols are: none, internal, external, zipped
> > > > configure exiting with result code 1
> > > >
> > > > Thanks,
> > > > Severin
> > > >
> > > > [1] https://bugs.openjdk.java.net/browse/JDK-8207234
> > > > [2] https://bugs.openjdk.java.net/browse/JDK-8036003
>
>
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