qt5base-lts/config.tests/no_direct_extern_access/lib.cpp

// Copyright (C) 2022 Intel Corporation.
// SPDX-License-Identifier: MIT

// This is the test found in https://sourceware.org/bugzilla/show_bug.cgi?id=29087

#define BUILD
#include "lib.h"

void *S::ptr = nullptr;
S::~S() { }
void *S::f() { return ptr; }
CMake: Test the linker too for -mno-direct-extern-access The GNU binutils ld linker needed a patch after the tagging of 2.38 to make the new feature work. Before this patch, the linker will fail to link when protected visibility symbols are used in the library, so don't enable the feature unless the linker is recent enough. GNU binutils gold from that version passes this test. LLVM lld is unknown (I didn't test), but LLVM was consulted in developing the feature. Fixes: QTBUG-103493 Change-Id: Ibcde9b9795ad42ac9978fffd16f1c80ca20953ff Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Marc Mutz <marc.mutz@qt.io> 2022-05-23 16:14:54 +00:00			`// Copyright (C) 2022 Intel Corporation.`
			`// SPDX-License-Identifier: MIT`

			`// This is the test found in https://sourceware.org/bugzilla/show_bug.cgi?id=29087`

			`#define BUILD`
			`#include "lib.h"`

Fix attempt to use -mno-direct-extern-access with Clang Clang has the option, but spells it differently. Fixes: QTBUG-105002 Pick-to: 6.4 Change-Id: I36b24183fbd041179f2ffffd170217e82ff6d14d Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io> 2022-07-15 19:38:18 +00:00			`void *S::ptr = nullptr;`
CMake: Test the linker too for -mno-direct-extern-access The GNU binutils ld linker needed a patch after the tagging of 2.38 to make the new feature work. Before this patch, the linker will fail to link when protected visibility symbols are used in the library, so don't enable the feature unless the linker is recent enough. GNU binutils gold from that version passes this test. LLVM lld is unknown (I didn't test), but LLVM was consulted in developing the feature. Fixes: QTBUG-103493 Change-Id: Ibcde9b9795ad42ac9978fffd16f1c80ca20953ff Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Marc Mutz <marc.mutz@qt.io> 2022-05-23 16:14:54 +00:00			`S::~S() { }`
Fix attempt to use -mno-direct-extern-access with Clang Clang has the option, but spells it differently. Fixes: QTBUG-105002 Pick-to: 6.4 Change-Id: I36b24183fbd041179f2ffffd170217e82ff6d14d Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io> 2022-07-15 19:38:18 +00:00			`void *S::f() { return ptr; }`