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Avoid race conditions when rebuilding librt.so

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`make check' sometimes triggers a rebuild of librt.so using
nptl/Makefile, which ignores librt's dependence on libpthread.  This
causes the build to blow up when we attempt to run the test suite on
RISC-V.

2018-01-06  Palmer Dabbelt  <palmer@sifive.com>

        * nptl/Makefile (/librt.so): Always depend on
        "$(shared-thread-library)".
This commit is contained in:
Palmer Dabbelt 2017-12-26 20:56:44 -08:00
parent 1598f3ad06
commit 8e13c51bb5
2 changed files with 6 additions and 0 deletions
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ChangeLog
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@ -19,6 +19,8 @@
(VDSO_HASH_LINUX_4_15): Likewise.
* scripts/build-many-glibcs.py (class Glibc): Strip shared objects
in subdirectories of lib.
* nptl/Makefile (/librt.so): Always depend on
"$(shared-thread-library)".
2018-01-06 Samuel Thibault <samuel.thibault@ens-lyon.org>

4
nptl/Makefile
View File

@ -612,6 +612,10 @@ else
librt = $(common-objpfx)rt/librt.a
endif
# `make check' sometimes triggers a rebuild of librt.so using this Makefile,
# which ignores librt's dependence on libpthread
$(common-objpfx)rt/librt.so: $(shared-thread-library)
$(objpfx)tst-cancel17: $(librt)
$(objpfx)tst-cancelx17: $(librt)
$(objpfx)tst-_res1mod2.so: $(objpfx)tst-_res1mod1.so