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check status of unw_getcontext() and unw_init_local() in qt_print_backtrace()

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Signed-off-by: Ivailo Monev <xakepa10@laimg.moc>
This commit is contained in:
Ivailo Monev 2020-01-23 18:14:18 +00:00
parent b870968b33
commit c6a58b86dd
1 changed files with 10 additions and 3 deletions
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13
src/core/global/qglobal.cpp
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@ -1258,8 +1258,15 @@ static void qt_print_backtrace()
unw_cursor_t cursor;
unw_context_t context;
unw_getcontext(&context);
unw_init_local(&cursor, &context);
if (unw_getcontext(&context) != 0) {
::fprintf(stderr, "qt_print_backtrace: unable to get context\n");
return;
}
if (unw_init_local(&cursor, &context) != 0) {
::fprintf(stderr, "qt_print_backtrace: unable to initialize\n");
return;
}
while (unw_step(&cursor) > 0) {
unw_word_t offset;
@ -1274,7 +1281,7 @@ static void qt_print_backtrace()
printf(" %s\n", sym);
}
} else {
printf("qt_print_backtrace: unable to obtain symbol name for this frame\n");
::fprintf(stderr, "qt_print_backtrace: unable to obtain symbol name for this frame\n");
}
}
}