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8262501: jdk17 libjvm link failure with --as-needed and clock_gettime in librt

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Co-authored-by: Matthias Klose <doko@openjdk.org>
Reviewed-by: erikj
This commit is contained in:
David Holmes 2021-04-15 12:59:21 +00:00
parent b23dbdbdb3
commit 81877f7df2
2 changed files with 10 additions and 8 deletions
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7
make/autoconf/flags-ldflags.m4
View File

@ -108,13 +108,6 @@ AC_DEFUN([FLAGS_SETUP_LDFLAGS_HELPER],
OS_LDFLAGS_JVM_ONLY="-Wl,-rpath,@loader_path/. -Wl,-rpath,@loader_path/.."
OS_LDFLAGS="-mmacosx-version-min=$MACOSX_VERSION_MIN"
fi
if test "x$OPENJDK_TARGET_OS" = xlinux; then
# Hotspot needs to link librt to get the clock_* functions.
# But once our supported minimum build and runtime platform
# has glibc 2.17, this can be removed as the functions are
# in libc.
OS_LDFLAGS_JVM_ONLY="-lrt"
fi
fi
# Setup debug level-dependent LDFLAGS

11
make/autoconf/libraries.m4
View File

@ -1,5 +1,5 @@
#
# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
@ -124,6 +124,15 @@ AC_DEFUN_ONCE([LIB_SETUP_LIBRARIES],
BASIC_JVM_LIBS="$BASIC_JVM_LIBS -lpthread"
fi
# librt for legacy clock_gettime
if test "x$OPENJDK_TARGET_OS" = xlinux; then
# Hotspot needs to link librt to get the clock_* functions.
# But once our supported minimum build and runtime platform
# has glibc 2.17, this can be removed as the functions are
# in libc.
BASIC_JVM_LIBS="$BASIC_JVM_LIBS -lrt"
fi
# Atomic library
# 32-bit platforms needs fallback library for 8-byte atomic ops on Zero
if HOTSPOT_CHECK_JVM_VARIANT(zero); then