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https://github.com/boykopovar/AnyPS5.git
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fma-rc
c020d73a5b
The nid_patcher turns each *_nid_no_patch_cut alias into a second dynamic symbol with the same name as the plain alias exported next to it, seven names in all. With those duplicates, LD_DEBUG=bindings shows libstdc++ keeping its own __cxa_allocate_exception, __cxa_throw, __cxa_begin_catch, __cxa_end_catch, __cxa_rethrow, __gxx_personality_v0 and _Unwind_Resume while taking __cxa_init_primary_exception, _Unwind_RaiseException and std::terminate from libc.prx. An exception thrown inside libstdc++ (std::stoi, a stream with exceptions enabled) got a libc header laid over a libstdc++ allocation, reached the libc personality as a foreign exception, matched no typed handler and ended in "terminate called without an active exception". The plain aliases already export these names, so the duplicates go. libstdc++ also describes std::__ios_failure with __iosfail_type_info, a class that privately derives from __si_class_type_info at the same address. Kind now follows such single same-address bases to the __cxxabiv1 class, so catching std::ios_base::failure or std::exception matches a stream failure. The plain aliases came ina4c519b26next to the cut aliases from14f8c16ac.
16 lines
442 B
C++
16 lines
442 B
C++
#include <cstdio>
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#include <string>
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#include <unistd.h>
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extern "C" const char* HostLibstdcxxExceptionFailure(const char* path);
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int main() {
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const std::string path = "/proc/" + std::to_string(getpid()) + "/missing/file";
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if (const char* failure = HostLibstdcxxExceptionFailure(path.c_str())) {
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std::fprintf(stderr, "%s\n", failure);
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return 1;
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}
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std::puts("host libstdc++ exceptions caught");
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return 0;
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}
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