Bug: Linker Error When Using windows and mio (uses windows-sys) #2410
Description
Which crate is this about?
windows
Crate version
0.47
Summary
I'm trying to update windows to version 0.47. In my code, I used K32EnumProcesses (in 0.46 from kernel32.dll). This was removed in 0.47 and EnumProcesses was added. This function comes from psapi.dll. Using this on its own works fine. However, in the project I'm also using tokio which pulls in mio. Specifying mio in the Cargo.toml and compiling, results in a linker-error.
Toolchain version/configuration
Default host: i686-pc-windows-msvc
rustup home: D:\Rust\rustup
installed toolchains
--------------------
stable-i686-pc-windows-gnu
stable-i686-pc-windows-msvc
stable-x86_64-pc-windows-gnu
stable-x86_64-pc-windows-msvc
nightly-2020-08-29-i686-pc-windows-msvc
nightly-2021-02-19-i686-pc-windows-msvc
nightly-2022-06-12-i686-pc-windows-msvc
nightly-2022-06-12-x86_64-pc-windows-msvc
nightly-i686-pc-windows-msvc
nightly-x86_64-pc-windows-msvc (default)
1.65-i686-pc-windows-msvc
active toolchain
----------------
nightly-x86_64-pc-windows-msvc (default)
rustc 1.70.0-nightly (2036fdd24 2023-03-27)
Note: I also tried to compile with stable (cargo +stable b).
Reproducible example
use std::mem;
use windows::{
core::{Error as WinError, Result},
Win32::System::ProcessStatus::EnumProcesses,
};
// some function that uses EnumProcesses
fn get_all_processes() -> Result<(Vec<u32>, u32)> {
let mut buf = vec![0u32; 1024];
let mut returned_bytes = 0;
unsafe {
if !EnumProcesses(
buf.as_mut_ptr(),
(mem::size_of::<u32>() * buf.len()) as u32,
&mut returned_bytes,
)
.as_bool()
{
return Err(WinError::from_win32());
}
}
Ok((buf, returned_bytes / (mem::size_of::<u32>() as u32)))
}
fn main() {
dbg!(get_all_processes().unwrap());
}Crate manifest
[package]
name = "example"
version = "0.1.0"
edition = "2021"
[dependencies]
windows = { version = "=0.47", features = ["Win32_Foundation", "Win32_System_ProcessStatus"] }
mio = "0.8.6"Expected behavior
The binary should compile without any errors.
Actual behavior
Compiling results in a linker-error:
error: linking with `link.exe` failed: exit code: 1120
|
= note: "D:\\VisualStudio 2022\\VC\\Tools\\MSVC\\14.35.32215\\bin\\HostX64\\x86\\link.exe" "/NOLOGO" "/LARGEADDRESSAWARE" "/SAFESEH" "C:\\Users\\Johannes\\AppData\\Local\\Temp\\rustc60Hp4R\\symbols.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.10v1qk6gwxxitm6u.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.143gr5jzaqncoibx.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.173ry79el3r37uy4.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.19elwrcp46qq2bow.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.19okhzq4vss3h4iv.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.28b8bnb6lcgeswq6.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.2psi4w84g5ixa6kr.rcgu.o"
"G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.2r3rqpigujbspeuv.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.2zw80lyx6zzorfjq.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.3e3tspw6xly2do2i.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.40bv0spe8ot0haw4.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.4d1y1uvd92h2wl5j.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.4jo4mj54y1i4i2w8.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.4oqyhim9mnscp3qe.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.4r8qjow4wa5sqwyc.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.5dx9ldipe9yc4ran.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.bs4r7o47zyg6ptb.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.gfqf7cso18zg8e4.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.tivyvndp2puectd.rcgu.o"
"G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.y2hygd3u8g4z4aq.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.yrbt3eor9twn9bc.rcgu.o" "G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.4aq17lx8gt5wjefb.rcgu.o" "/LIBPATH:G:\\Dev\\cargo-test\\target\\debug\\deps" "/LIBPATH:D:\\Rust\\cargo\\registry\\src\\github.com-1285ae84e5963aae\\windows_i686_msvc-0.42.2\\lib" "/LIBPATH:D:\\Rust\\cargo\\registry\\src\\github.com-1285ae84e5963aae\\windows_i686_msvc-0.47.0\\lib" "/LIBPATH:D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib" "G:\\Dev\\cargo-test\\target\\debug\\deps\\libwindows-2f7d1b1e62caa374.rlib" "D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libstd-6bc3c267dccd1407.rlib" "D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libpanic_unwind-f3372e197f57c25b.rlib" "D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\librustc_demangle-ba86a3b40dfeb436.rlib" "D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libstd_detect-8067f3793b24ce83.rlib" "D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libhashbrown-66106553fb55aed5.rlib" "D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libminiz_oxide-279d438d7556a7e7.rlib" "D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libadler-347d8776c566f0eb.rlib" "D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\librustc_std_workspace_alloc-0d36d7c1d6ef43af.rlib" "D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libunwind-b03d01cf9bd87ee1.rlib" "D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libcfg_if-f82579346fbfb791.rlib" "D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\liblibc-9706fd397d3b79de.rlib" "D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\liballoc-551058c15bbc9ba9.rlib" "D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\librustc_std_workspace_core-f1a86f24101b242b.rlib" "D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libcore-799d8e84cd5e1cff.rlib" "D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libcompiler_builtins-7c1c0e97cf8cda48.rlib" "windows.lib" "kernel32.lib" "advapi32.lib" "userenv.lib" "kernel32.lib" "ws2_32.lib" "bcrypt.lib" "msvcrt.lib" "legacy_stdio_definitions.lib" "/NXCOMPAT" "/LIBPATH:D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib" "/OUT:G:\\Dev\\cargo-test\\target\\debug\\deps\\cargo_test.exe" "/OPT:REF,NOICF" "/DEBUG" "/NATVIS:D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\etc\\intrinsic.natvis"
"/NATVIS:D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\etc\\liballoc.natvis" "/NATVIS:D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\etc\\libcore.natvis" "/NATVIS:D:\\Rust\\rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\etc\\libstd.natvis"
= note: cargo_test.gfqf7cso18zg8e4.rcgu.o : error LNK2019: unresolved external symbol __imp__EnumProcesses@12 referenced in function __ZN7windows7Windows5Win326System13ProcessStatus13EnumProcesses17h6e2fa32296735387E
G:\Dev\cargo-test\target\debug\deps\cargo_test.exe : fatal error LNK1120: 1 unresolved externals
Additional comments
I couldn't lower the problem down to a specific function from windows-sys that's used by mio.