https://sourceware.org/bugzilla/show_bug.cgi?id=30254
Bug ID: 30254
Summary: iostream crashes with ld linker for windows targets
Product: binutils
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: euloanty at live dot com
Target Milestone: ---
Bug issue 29973 was a mess. So I decided to start a new one and close bug
29973.
GCC 13 made several changes to iostream, including making it with an
__init_priority__ and changing the definition due to the updated win32 thread
model changes.
I do not know what breaks it. But any program that uses std::cout/std::cin now
will crash when dynamically linked with libstdc++. I have tried LLVM lld. lld
does not crash the program, but ld crashes.
This breaks nearly all C++ programs on windows since they may use iostream in
some places, and the entire program crashes.
Maybe ld linker does not correctly deal with __init_priority__ for PE targets.
However, I am not an expert on the linker and do not know why.
It is very near April, and we will get the latest binutils and GCC 13
published, and GCC 14 will be very soon. This issue needs to be addressed as
soon as possible so we do not break Windows programs and GCC bootstrapping when
GCC 13 is released.
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