From 6c8e99eed15de30de153e963ca9dfcda07d106b9 Mon Sep 17 00:00:00 2001
From: Alisa Sireneva <me@purplesyringa.moe>
Date: Fri, 17 Jan 2025 05:49:32 +0300
Subject: [PATCH] Kill asmjs-unknown-emscripten

asmjs has been in limbo for years. Modern rustc does not even
acknowledge it as an existing target anymore. As such, reap it out.

This commit also removes emscripten.sh, which has not been used anywhere
even prior to this change.
---
 .changes/1609.json                         |  5 +++
 README.md                                  |  1 -
 docker/Dockerfile.asmjs-unknown-emscripten | 23 -------------
 docker/emscripten.sh                       | 40 ----------------------
 src/lib.rs                                 |  1 -
 targets.toml                               |  9 -----
 6 files changed, 5 insertions(+), 74 deletions(-)
 create mode 100644 .changes/1609.json
 delete mode 100644 docker/Dockerfile.asmjs-unknown-emscripten
 delete mode 100755 docker/emscripten.sh

diff --git a/.changes/1609.json b/.changes/1609.json
new file mode 100644
index 000000000..75149f05b
--- /dev/null
+++ b/.changes/1609.json
@@ -0,0 +1,5 @@
+{
+    "description": "remove `asmjs-unknown-emscripten` target.",
+    "type": "removed",
+    "breaking": true
+}
diff --git a/README.md b/README.md
index 5a089bd01..7672fddcb 100644
--- a/README.md
+++ b/README.md
@@ -261,7 +261,6 @@ terminate.
 | `x86_64-unknown-linux-gnu:centos` [5]  | 2.17   | 4.8.5  | ✓   | 4.2.1 |   ✓    |
 | `x86_64-unknown-linux-musl`            | 1.2.3  | 9.2.0  | ✓   | N/A   |   ✓    |
 | `x86_64-unknown-netbsd` [3]            | 9.2.0  | 9.4.0  | ✓   | N/A   |        |
-<!--| `asmjs-unknown-emscripten` [7]       | 3.1.14 | 15.0.0  | ✓   | N/A   |   ✓    |-->
 
 [1] libc = bionic; Only works with native tests, that is, tests that do not
     depends on the Android Runtime. For i686 some tests may fails with the
diff --git a/docker/Dockerfile.asmjs-unknown-emscripten b/docker/Dockerfile.asmjs-unknown-emscripten
deleted file mode 100644
index 2b0a725d5..000000000
--- a/docker/Dockerfile.asmjs-unknown-emscripten
+++ /dev/null
@@ -1,23 +0,0 @@
-FROM emscripten/emsdk:3.1.14
-WORKDIR /
-ENV DEBIAN_FRONTEND=noninteractive
-
-COPY common.sh lib.sh /
-RUN /common.sh
-
-COPY cmake.sh /
-RUN /cmake.sh
-
-COPY xargo.sh /
-RUN /xargo.sh
-
-RUN apt-get update && apt-get install --assume-yes --no-install-recommends \
-    libxml2 \
-    python
-
-ENV CROSS_TOOLCHAIN_PREFIX=em
-ENV CROSS_SYSROOT=/emsdk/upstream/emscripten/cache/sysroot
-ENV CROSS_TARGET_RUNNER="node"
-ENV CARGO_TARGET_ASMJS_UNKNOWN_EMSCRIPTEN_RUNNER="$CROSS_TARGET_RUNNER" \
-    BINDGEN_EXTRA_CLANG_ARGS_asmjs_unknown_emscripten="--sysroot=$CROSS_SYSROOT" \
-    CMAKE_TOOLCHAIN_FILE_asmjs_unknown_emscripten=/emsdk/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake
diff --git a/docker/emscripten.sh b/docker/emscripten.sh
deleted file mode 100755
index 28f2d7877..000000000
--- a/docker/emscripten.sh
+++ /dev/null
@@ -1,40 +0,0 @@
-#!/usr/bin/env bash
-
-set -x
-set -euo pipefail
-
-# shellcheck disable=SC1091
-. lib.sh
-
-main() {
-    install_packages ca-certificates \
-        curl \
-        git \
-        libxml2 \
-        python
-
-    cd /
-    git clone https://github.com/emscripten-core/emsdk.git /emsdk-portable
-    cd /emsdk-portable
-
-    ./emsdk install 1.38.46-upstream
-    ./emsdk activate 1.38.46-upstream
-
-    # Compile and cache libc
-    echo 'int main() {}' > a.c
-    emcc a.c
-    emcc -s BINARYEN=1 a.c
-    echo -e '#include <iostream>\n void hello(){ std::cout << std::endl; }' > a.cpp
-    emcc a.cpp
-    emcc -s BINARYEN=1 a.cpp
-    rm -f a.*
-
-    # Make emsdk usable by any user
-    chmod a+rwX -R "${EMSDK}"
-
-    purge_packages
-
-    rm "${0}"
-}
-
-main "${@}"
diff --git a/src/lib.rs b/src/lib.rs
index c3d2ba78e..fa7945bfb 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -152,7 +152,6 @@ impl TargetTriple {
             "x86_64-linux-android" => None,
             "x86_64-pc-windows-gnu" => None,
             "i686-pc-windows-gnu" => None,
-            "asmjs-unknown-emscripten" => None,
             "wasm32-unknown-emscripten" => None,
             "x86_64-unknown-dragonfly" => Some("dragonflybsd-amd64"),
             "i686-unknown-freebsd" => Some("freebsd-i386"),
diff --git a/targets.toml b/targets.toml
index 759e6867a..50758b724 100644
--- a/targets.toml
+++ b/targets.toml
@@ -402,15 +402,6 @@ cpp = true
 std = true
 run = true
 
-[[target]]
-# Disabled for now, see https://github.com/rust-lang/rust/issues/98216 & https://github.com/cross-rs/cross/issues/634
-disabled = true
-target = "asmjs-unknown-emscripten"
-os = "ubuntu-latest"
-cpp = true
-std = true
-run = true
-
 [[target]]
 target = "wasm32-unknown-emscripten"
 os = "ubuntu-latest"