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From: Jonathan Wakely <redi@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc r12-9349] libstdc++: Deliver names of C functions in <stacktrace> Date: Tue, 28 Mar 2023 23:35:31 +0000 (GMT) [thread overview] Message-ID: <20230328233531.524403858417@sourceware.org> (raw) https://gcc.gnu.org/g:b1f0c065022784680044d30fa269025ae44b43de commit r12-9349-gb1f0c065022784680044d30fa269025ae44b43de Author: Björn Schäpers <bjoern@hazardy.de> Date: Tue Dec 13 22:02:47 2022 +0100 libstdc++: Deliver names of C functions in <stacktrace> __cxa_demangle is only to demangle C++ names, for all C functions, extern "C" functions, and including main it returns -2, in that case just adapt the given name. Otherwise it's kept empty, which doesn't look nice in the stacktrace. libstdc++-v3/ChangeLog: * include/std/stacktrace (stacktrace_entry::_S_demangle): Use raw __name if __cxa_demangle could not demangle it. Signed-off-by: Björn Schäpers <bjoern@hazardy.de> (cherry picked from commit b1c839be8353edfb1951454be3c5a8150f771385) Diff: --- libstdc++-v3/include/std/stacktrace | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libstdc++-v3/include/std/stacktrace b/libstdc++-v3/include/std/stacktrace index a7fee8531f7..d46c05b3cd9 100644 --- a/libstdc++-v3/include/std/stacktrace +++ b/libstdc++-v3/include/std/stacktrace @@ -213,6 +213,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION &__status); if (__status == 0) __s = __str; + else + __s = __name; __builtin_free(__str); return __s; }
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