"This application has requested the Runtime to terminate it in a unusual way."

[TheSandBoxMKG]

```

This application has requested the Runtime to terminate it in a unusual way.
Please contact the application's support team for more information.

Windows 95 OSR 2.1 (Spanish language edition) running inside DOSBox-X

The unicows redistributable has been installed/extracted to the same folder as the executable I'm trying to get running.

It's the cargo new hello world program.

Same executable works on Windows XP in real hardware.

This is the setup script I'm using (I'm not using a config.toml):

#!/bin/sh

export \
    CARGO_TARGET_I586_RUST9X_WINDOWS_MSVC_LINKER="lld-link" \
    CARGO_TARGET_I686_RUST9X_WINDOWS_MSVC_LINKER="lld-link" \
    CARGO_TARGET_I586_RUST9X_WINDOWS_MSVC_RUNNER="wine" \
    CARGO_TARGET_I686_RUST9X_WINDOWS_MSVC_RUNNER="wine"

## set subsystem to WINDOWS or CONSOLE, with version 4.0 (Windows 95 and up, NT3.5 and up)
## set version 3.10 (_not_ 3.1) for Windows NT 3.1
export RUSTFLAGS="${RUSTFLAGS:+${RUSTFLAGS} }-Clink-arg=/SUBSYSTEM:CONSOLE,4.0"
export RUSTFLAGS="${RUSTFLAGS:+${RUSTFLAGS} }-Clink-arg=/OSVERSION:3.1"
## set OS version to 3.1 to work anywhere

## (NOTE: NT3.51 does _not_ like a 1MiB stack and will promptly ignore it)
export RUSTFLAGS="${RUSTFLAGS:+${RUSTFLAGS} }-Clink-arg=/STACK:131072"

export RUSTFLAGS="${RUSTFLAGS:+${RUSTFLAGS} }-Ctarget-feature=+crt-static" #statically linked runtime
#export RUSTFLAGS="${RUSTFLAGS:+${RUSTFLAGS} }-Ctarget-feature=-crt-static" # dynamically linked runtime

## rust9x links against `unicows.lib` by default, make sure it's in your search path.
#export RUSTFLAGS="${RUSTFLAGS:+${RUSTFLAGS} }-Clink-arg=/LIBPATH:/home/seri/mnt/ext4/msvc-toolchains/platformsdk3790/Lib"
## If you don't want to use `unicows.lib` (you're not targeting Windows 9x/Me), you can disable it:
#export RUSTFLAGS="${RUSTFLAGS:+${RUSTFLAGS} }-Zunicows=no"

## VC7.1: Win95 support, panic = "abort" mandatory, unwinding fails
export RUSTFLAGS="${RUSTFLAGS:+${RUSTFLAGS} }-Clink-arg=/LIBPATH:/run/media/${USER}/VC2003/lib"
export RUSTFLAGS="${RUSTFLAGS:+${RUSTFLAGS} }-Clink-arg=/LIBPATH:/run/media/${USER}/PSDK-5.2-3790/Lib"
## necessary for rust-lld, as it doesn't like the old pdb format used by VC7.1
export RUSTFLAGS="${RUSTFLAGS:+${RUSTFLAGS} }-Clink-arg=/DEBUG:NONE"

## Unwind support needs at least VC8 (VS2005)
export \
    CARGO_PROFILE_DEV_PANIC="abort"

export \
    CARGO_PROFILE_RELEASE_LTO="true" \
    CARGO_PROFILE_RELEASE_CODEGEN_UNITS="1" \
    CARGO_PROFILE_RELEASE_DEBUG="2" \
    CARGO_PROFILE_RELEASE_PANIC="abort"

exec cargo +rust9x $@

So… In general, I'm not getting an useful error message, what could I change to get a least some direction of what's going wrong?

[seritools]

could you check if a release build works? I do have a debug-only fix coming up soon

also, what CPU/instruction set is Dosbox-X emulating here? i586 will need Pentium instructions.

[seritools]

perfect, thanks. I'll have a look tomorrow!

[seritools]

oh i already see the problem from the screenshot, you're not compiling with the i586-rust9x-pc-msvc target, but the i686 one. I can see a PSHUFD instuction there.

The i686 target CPU is pentium4, and generally SSE2.

[seritools]

but note that the debug build might still not work on pre-XP currently, i'll release a patch for that soon

[seritools]

fixed the debug builds in https://github.com/rust9x/rust/releases/tag/rust9x-1.99.0-v2, and added clearer compilation target list at https://github.com/rust9x/docs/blob/main/building-with-r9x.md#compilation-targets

[TheSandBoxMKG]

Thank you for the clarification and documentation update!
Yes, it works with both i586 builds.

I don't think DOSBox-X specifically supports pentium4 yet as far as I know.

I will try with the experimental cpu type and report back.

UPDATE: No dice with the experimental cpu type running the i686 builds. At least the i586 builds work with pentium_mmx which is what the DOSBox-X guide recommends for running Windows 95.

[seritools]

yeah, i'd recommend 86Box or even regular Hypervisor-based VMs like KVM/VirtualBox/VMWare with https://github.com/oerg866/win98-quickinstall for i686 9x testing