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openSUSE:Leap:42.1:Staging:B
libqt5-qtbase
Add-a-linker-version-script-to-Qt-libraries.patch
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File Add-a-linker-version-script-to-Qt-libraries.patch of Package libqt5-qtbase
From 38c28ad2420542d795a27c5359226260c886b112 Mon Sep 17 00:00:00 2001 From: Thiago Macieira <thiago.macieira@intel.com> Date: Tue, 2 Jun 2015 11:10:22 -0700 Subject: [PATCH] Add a linker version script to Qt libraries This linker script is only enabled for systems with GCC or GCC-like compilers, though technically it should work on the BSDs too (will enable after testing). For regular modules, this declares one ELF version "Qt_5" and places all QtCore symbols inside, then it declares unused ELF versions "Qt_5.x" for each older minor release. For modules declared "internal_module", all symbols are placed in version Qt_5_PRIVATE_API. The big advantage of an ELF version is that, when we do Qt 6, both versions of QtCore could be loaded in memory without conflicts and all symbols would be resolved to the correct library. No module can talk to both at the same time, but this avoids mistakes of loading them indirectly by plugins. The extra Qt_5.x versions will be used in the next commit. Change-Id: I049a653beeb5454c9539ffff13e3fe6f050fdf31 --- mkspecs/common/gcc-base-unix.conf | 1 + mkspecs/common/qcc-base-qnx.conf | 1 + mkspecs/features/qt_module.prf | 22 ++++++++++++++++++++++ mkspecs/linux-icc/qmake.conf | 1 + mkspecs/unsupported/linux-host-g++/qmake.conf | 1 + 5 files changed, 26 insertions(+) diff --git a/mkspecs/common/gcc-base-unix.conf b/mkspecs/common/gcc-base-unix.conf index 29e0521..3e0b3ba 100644 --- a/mkspecs/common/gcc-base-unix.conf +++ b/mkspecs/common/gcc-base-unix.conf @@ -22,3 +22,4 @@ QMAKE_LFLAGS_USE_GOLD = -fuse-ld=gold # -Bsymbolic-functions (ld) support QMAKE_LFLAGS_BSYMBOLIC_FUNC = -Wl,-Bsymbolic-functions QMAKE_LFLAGS_DYNAMIC_LIST = -Wl,--dynamic-list, +QMAKE_LFLAGS_VERSION_SCRIPT = -Wl,--version-script, diff --git a/mkspecs/common/qcc-base-qnx.conf b/mkspecs/common/qcc-base-qnx.conf index a0a88b9..cebbe06 100644 --- a/mkspecs/common/qcc-base-qnx.conf +++ b/mkspecs/common/qcc-base-qnx.conf @@ -19,6 +19,7 @@ QMAKE_LFLAGS_RPATHLINK = -Wl,-rpath-link, # -Bsymbolic-functions (ld) support QMAKE_LFLAGS_BSYMBOLIC_FUNC = -Wl,-Bsymbolic-functions QMAKE_LFLAGS_DYNAMIC_LIST = -Wl,--dynamic-list, +QMAKE_LFLAGS_VERSION_SCRIPT = -Wl,--version-script, # Generic options for all BlackBerry/QNX qcc mkspecs QMAKE_CFLAGS_THREAD = -D_REENTRANT diff --git a/mkspecs/features/qt_module.prf b/mkspecs/features/qt_module.prf index 8919d41..3264740 100644 --- a/mkspecs/features/qt_module.prf +++ b/mkspecs/features/qt_module.prf @@ -185,6 +185,28 @@ equals(QT_ARCH, i386):contains(QT_CPU_FEATURES.$$QT_ARCH, sse2):compiler_support QMAKE_CXXFLAGS += -mfpmath=sse } +!isEmpty(QMAKE_LFLAGS_VERSION_SCRIPT):!static { + verscript = $$OUT_PWD/$${TARGET}.version + QMAKE_LFLAGS += $${QMAKE_LFLAGS_VERSION_SCRIPT}$$verscript + + internal_module { + verscript_content = "Qt_$${QT_MAJOR_VERSION}_PRIVATE_API { *; };" + } else { + current = Qt_$$QT_MAJOR_VERSION + verscript_content = "$$current { *; };" + for(i, 0..$$section(VERSION, ., 1, 1)) { + previous = $$current + current = Qt_$${QT_MAJOR_VERSION}.$$i + verscript_content += "$$current {} $$previous;" + } + } + write_file($$verscript, verscript_content)|error("Aborting.") + unset(current) + unset(previous) + unset(verscript) + unset(verscript_content) +} + android: CONFIG += qt_android_deps #install directives diff --git a/mkspecs/linux-icc/qmake.conf b/mkspecs/linux-icc/qmake.conf index 8119c8a..0cd55ee 100644 --- a/mkspecs/linux-icc/qmake.conf +++ b/mkspecs/linux-icc/qmake.conf @@ -97,6 +97,7 @@ QMAKE_CXXFLAGS_PRECOMPILE = -c -pch-create ${QMAKE_PCH_OUTPUT} -include ${QMAKE_ # -Bsymbolic-functions (ld) support QMAKE_LFLAGS_BSYMBOLIC_FUNC = -Wl,-Bsymbolic-functions QMAKE_LFLAGS_DYNAMIC_LIST = -Wl,--dynamic-list, +QMAKE_LFLAGS_VERSION_SCRIPT = -Wl,--version-script, # Symbol visibility control QMAKE_CFLAGS_HIDESYMS += -fvisibility=hidden diff --git a/mkspecs/unsupported/linux-host-g++/qmake.conf b/mkspecs/unsupported/linux-host-g++/qmake.conf index 1523126..546ff21 100644 --- a/mkspecs/unsupported/linux-host-g++/qmake.conf +++ b/mkspecs/unsupported/linux-host-g++/qmake.conf @@ -71,6 +71,7 @@ QMAKE_PCH_OUTPUT_EXT = .gch # -Bsymbolic-functions (ld) support QMAKE_LFLAGS_BSYMBOLIC_FUNC = -Wl,-Bsymbolic-functions QMAKE_LFLAGS_DYNAMIC_LIST = -Wl,--dynamic-list, +QMAKE_LFLAGS_VERSION_SCRIPT = -Wl,--version-script, # # qmake configuration for common linux -- 2.3.5
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