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glibc 2.25 release is in freeze stage now (From OE-Core rev: b72dbf70646e9dca0dbb5b22bc70d919e6eb8bdc) Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
101 lines
3.4 KiB
Diff
101 lines
3.4 KiB
Diff
From 2cb7e3cae4020f431d426ad1740bb25506cde899 Mon Sep 17 00:00:00 2001
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From: Khem Raj <raj.khem@gmail.com>
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Date: Wed, 18 Mar 2015 00:49:28 +0000
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Subject: [PATCH 19/26] eglibc: Help bootstrap cross toolchain
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Taken from EGLIBC, r1484 + r1525
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2007-02-20 Jim Blandy <jimb@codesourcery.com>
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* Makefile (install-headers): Preserve old behavior: depend on
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$(inst_includedir)/gnu/stubs.h only if install-bootstrap-headers
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is set; otherwise, place gnu/stubs.h on the 'install-others' list.
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2007-02-16 Jim Blandy <jimb@codesourcery.com>
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* Makefile: Amend make install-headers to install everything
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necessary for building a cross-compiler. Install gnu/stubs.h as
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part of 'install-headers', not 'install-others'.
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If install-bootstrap-headers is 'yes', install a dummy copy of
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gnu/stubs.h, instead of computing the real thing.
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* include/stubs-bootstrap.h: New file.
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Upstream-Status: Pending
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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---
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Makefile | 22 +++++++++++++++++++++-
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include/stubs-bootstrap.h | 12 ++++++++++++
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2 files changed, 33 insertions(+), 1 deletion(-)
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create mode 100644 include/stubs-bootstrap.h
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diff --git a/Makefile b/Makefile
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index 1ae3281..26ab7bf 100644
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--- a/Makefile
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+++ b/Makefile
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@@ -70,9 +70,18 @@ subdir-dirs = include
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vpath %.h $(subdir-dirs)
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# What to install.
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-install-others = $(inst_includedir)/gnu/stubs.h
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install-bin-script =
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+# If we're bootstrapping, install a dummy gnu/stubs.h along with the
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+# other headers, so 'make install-headers' produces a useable include
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+# tree. Otherwise, install gnu/stubs.h later, after the rest of the
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+# build is done.
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+ifeq ($(install-bootstrap-headers),yes)
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+install-headers: $(inst_includedir)/gnu/stubs.h
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+else
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+install-others = $(inst_includedir)/gnu/stubs.h
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+endif
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+
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ifeq (yes,$(build-shared))
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headers += gnu/lib-names.h
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endif
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@@ -152,6 +161,16 @@ others: $(common-objpfx)testrun.sh
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subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)
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+# gnu/stubs.h depends (via the subdir 'stubs' targets) on all the .o
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+# files in EGLIBC. For bootstrapping a GCC/EGLIBC pair, an empty
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+# gnu/stubs.h is good enough.
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+ifeq ($(install-bootstrap-headers),yes)
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+$(inst_includedir)/gnu/stubs.h: include/stubs-bootstrap.h $(+force)
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+ $(make-target-directory)
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+ $(INSTALL_DATA) $< $@
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+
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+installed-stubs =
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+else
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ifndef abi-variants
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installed-stubs = $(inst_includedir)/gnu/stubs.h
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else
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@@ -178,6 +197,7 @@ $(inst_includedir)/gnu/stubs.h: $(+force)
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install-others-nosubdir: $(installed-stubs)
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endif
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+endif
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# Since stubs.h is never needed when building the library, we simplify the
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diff --git a/include/stubs-bootstrap.h b/include/stubs-bootstrap.h
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new file mode 100644
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index 0000000..1d2b669
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--- /dev/null
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+++ b/include/stubs-bootstrap.h
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@@ -0,0 +1,12 @@
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+/* Placeholder stubs.h file for bootstrapping.
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+
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+ When bootstrapping a GCC/EGLIBC pair, GCC requires that the EGLIBC
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+ headers be installed, but we can't fully build EGLIBC without that
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+ GCC. So we run the command:
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+
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+ make install-headers install-bootstrap-headers=yes
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+
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+ to install the headers GCC needs, but avoid building certain
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+ difficult headers. The <gnu/stubs.h> header depends, via the
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+ EGLIBC subdir 'stubs' make targets, on every .o file in EGLIBC, but
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+ an empty stubs.h like this will do fine for GCC. */
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--
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2.10.2
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