Static linkage against libstdc++ and lpthread leads to segmentation fault

[mitchgrout]

I've got a build setup which statically links against all dependencies, including stdc++ and pthread. I understand that this isn't exactly a good idea, but it's what I need. A minimal setup is:

main.cxx:

#include <condition_variable>

int main() {
  std::condition_variable v{};
  v.notify_one();
  return 0;
}

meson.build:

project('segfault', 'cpp', default_options: ['cpp_std=c++17'])

add_global_link_arguments(
  '-static-libgcc',
  '-static-libstdc++',
  '-static',
  language: 'cpp',
)

threads = dependency('threads', static: true)
executable('segfault', 'main.cxx', dependencies: threads)

meson setup build && ninja -C build passes without issue, but running the resulting build/segfault triggers a segmentation fault. The offending instruction is found in libstdc++ code:

_ZNSt18condition_variable10notify_oneEv:
   0x08050220 <+0>:     endbr32 
   0x08050224 <+4>:     push   %ebx
   0x08050225 <+5>:     call   0x804fe90 <__x86.get_pc_thunk.bx>
   0x0805022a <+10>:    add    $0x1d5dd6,%ebx
   0x08050230 <+16>:    sub    $0x14,%esp
   0x08050233 <+19>:    pushl  0x1c(%esp)
=> 0x08050237 <+23>:    call   0x0
   0x0805023c <+28>:    add    $0x10,%esp
   0x0805023f <+31>:    test   %eax,%eax
   0x08050241 <+33>:    jne    0x8050248 <_ZNSt18condition_variable10notify_oneEv+40>
   0x08050243 <+35>:    add    $0x8,%esp
   0x08050246 <+38>:    pop    %ebx
   0x08050247 <+39>:    ret    
   0x08050248 <+40>:    sub    $0xc,%esp
   0x0805024b <+43>:    push   %eax
   0x0805024c <+44>:    call   0x80491b7 <_ZSt20__throw_system_errori>

Replacing -pthread with -Wl,--whole-archive -lpthread -Wl,--no-whole-archive appears to fix this. My guess is that while -static-libstdc++ gives you a statically-linked libstdc++, that library is still dynamically linked with pthread. However, in my meson.build I specified dependency('threads', static: true), so presumably we should have a statically linked pthread too. Looking at the build.ninja though, I have:

build segfault.p/main.cxx.o: cpp_COMPILER ../main.cxx
 DEPFILE = segfault.p/main.cxx.o.d
 DEPFILE_UNQUOTED = segfault.p/main.cxx.o.d
 ARGS = -Isegfault.p -I. -I.. -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -std=c++17 -O0 -g -pthread

build segfault: cpp_LINKER segfault.p/main.cxx.o
 LINK_ARGS = -Wl,--as-needed -Wl,--no-undefined -static-libgcc -static-libstdc++ -static -pthread

...which means that dependency('threads', static: true) just translates to a plain -pthread. Since this is for a niche project I can fix it by manipulating the link args, but I have to wonder whether there's anything that can be done in meson to help resolve this type of static linkage issue?