https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119822
Bug ID: 119822
Summary: Linker failure with std::stacktrace
Product: gcc
Version: 14.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: terra at gnome dot org
Target Milestone: ---
Created attachment 61125
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61125&action=edit
Preprocessed source
Linking fails when std::stacktrace is used in a 32-bit program.
This could be worse than it looks: 32-bit-ness is not part of the class'
signature. If a method in it doesn't have native_handle_type in its
arguments but still uses it internally, then the 32-bit and 64-bit
methods would have the name. I think.
(On the other hand it's 2025 so maybe 32-bit isn't very high of the list of
priorities.)
# /usr/local/products/gcc/14.1.0/bin/g++ -Wall -std=gnu++23 -m32 -g -O2 ttt.C
/usr/local/products/gcc/14.1.0/include/c++/14.1.0/stacktrace:203: error:
undefined reference to 'std::__stacktrace_impl::_S_current(int (*)(void*,
unsigned int), void*, int)'
/usr/local/products/gcc/14.1.0/include/c++/14.1.0/stacktrace:163: error:
undefined reference to 'std::stacktrace_entry::_Info::_M_populate(unsigned
int)'
collect2: error: ld returned 1 exit status
# cat ttt.C
#include <stacktrace>
#include <iostream>
int
main()
{
std::cout << std::stacktrace::current() << std::endl;
return 0;
}
# /usr/local/products/gcc/14.1.0/bin/g++ -v
Using built-in specs.
COLLECT_GCC=/usr/local/products/gcc/14.1.0/bin/g++
COLLECT_LTO_WRAPPER=/usr/local/products/gcc/14.1.0/lib/gcc/x86_64-suse-linux/14.1.0/lto-wrapper
Target: x86_64-suse-linux
Configured with: ../../gcc-14.1.0/configure
--enable-languages=c,c++,fortran,jit --enable-host-shared --with-pic
--enable-targets=x86_64-suse-linux,i686-suse-linux
--prefix=/usr/local/products/gcc/14.1.0 --with-gnu-as
--with-as=/usr/local/products/gcc/binutils-2.40/bin/as
--with-ld=/usr/local/products/gcc/binutils-2.40/bin/ld.gold --enable-link-mutex
--enable-gnu-indirect-functions --enable-linux-futex --enable-threads=posix
--enable-shared --enable-__cxa_atexit --enable-libstdcxx-allocator=new
x86_64-suse-linux --enable-libstdcxx-backtrace=yes
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.1.0 (GCC)
