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Thiago Macieira bd32c7d705 QProcess/Unix: block all Unix signals between vfork() and exec() 
This is similar to and extends the prevention of thread cancellation
introduced by commit ba05af82d3. This
prevents the situation in which a signal gets delivered (usually because
of a crash) and the parent process' handler is run, doing things it
shouldn't between vfork() and execve().

Most C libraries (all that I've investigated) unblock SIGABRT on
abort(), so this doesn't affect them. Likewise, on most OSes, crashes
ignore the signal block and terminate the application -- Darwin appears
to be an exception, but vfork() is not enabled there. Both situations
are tested by terminateInChildProcessModifier().

Task-number: QTBUG-113822
Change-Id: Ib5ce7a497e034ebabb2cfffd17628ca33969b7af
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
 		2023-06-28 00:16:31 -07:00
..
largefile Corelib: s/Q_OS_MAC/Q_OS_DARWIN/wg except for doc and definition 2023-03-20 19:18:52 +01:00
qabstractfileengine tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qbuffer tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qdataurl tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qdebug Move the formatting of <chrono> durations to QDebug & QtTest 2023-05-06 17:54:23 +00:00
qdir Corelib: s/Q_OS_MAC/Q_OS_DARWIN/wg except for doc and definition 2023-03-20 19:18:52 +01:00
qdiriterator tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qfile tst_QFile: remove the timer in unixPipe and socketPair 2023-06-26 12:28:24 -07:00
qfileinfo Use LANGUAGE OBJCXX rather than COMPILE_FLAGS "-x objective-c++" 2023-04-13 14:36:26 +02:00
qfileselector tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qfilesystementry Fix tst_qfilesystementry in unity build 2023-03-15 18:18:01 +01:00
qfilesystemmetadata tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qfilesystemwatcher Corelib: s/Q_OS_MAC/Q_OS_DARWIN/wg except for doc and definition 2023-03-20 19:18:52 +01:00
qiodevice tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qipaddress Silence warning about unsafe sprintf, use snprintf instead 2023-03-06 23:14:08 +01:00
qlockfile QLockFile: tryLock(): use chrono first 2023-03-14 22:15:35 +02:00
qloggingcategory tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qloggingregistry tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qnodebug tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qprocess QProcess/Unix: block all Unix signals between vfork() and exec() 2023-06-28 00:16:31 -07:00
qprocess-noapplication tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qprocessenvironment tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qresourceengine CMake: Allow contents of resources to be replaced by empty files 2022-12-17 20:43:51 +01:00
qsavefile tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qsettings Corelib: s/Q_OS_MAC/Q_OS_DARWIN/wg except for doc and definition 2023-03-20 19:18:52 +01:00
qstandardpaths QStandardPaths: de-duplicate some unittests code 2023-04-22 20:04:31 +02:00
qstorageinfo QStorageInfo/Linux: use readAll() with /proc/self/mountinfo 2023-06-27 02:28:21 +03:00
qtemporarydir tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qtemporaryfile tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qurl Corelib: s/Q_OS_MAC/Q_OS_DARWIN/wg except for doc and definition 2023-03-20 19:18:52 +01:00
qurlinternal tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qurlquery tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
qurluts46 Update UCD to Revision 30 2022-10-11 14:10:59 +00:00
qzip Move QZipReader/Writer from QtGui to QtCore 2023-04-26 12:01:05 +02:00
CMakeLists.txt Move QZipReader/Writer from QtGui to QtCore 2023-04-26 12:01:05 +02:00