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Add new {x86_64,i686}-win7-windows-gnu targets
These are in symmetry with `{x86_64,i686}-win7-windows-msvc`.
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Diff for: ‎compiler/rustc_target/src/spec/mod.rs

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@@ -1812,9 +1812,11 @@ supported_targets! {
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("aarch64-unknown-illumos", aarch64_unknown_illumos),
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("x86_64-pc-windows-gnu", x86_64_pc_windows_gnu),
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("x86_64-uwp-windows-gnu", x86_64_uwp_windows_gnu),
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("x86_64-win7-windows-gnu", x86_64_win7_windows_gnu),
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("i686-pc-windows-gnu", i686_pc_windows_gnu),
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("i686-uwp-windows-gnu", i686_uwp_windows_gnu),
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("x86_64-uwp-windows-gnu", x86_64_uwp_windows_gnu),
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("i686-win7-windows-gnu", i686_win7_windows_gnu),
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("aarch64-pc-windows-gnullvm", aarch64_pc_windows_gnullvm),
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("i686-pc-windows-gnullvm", i686_pc_windows_gnullvm),

Diff for: ‎compiler/rustc_target/src/spec/targets/i686_win7_windows_gnu.rs

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@@ -0,0 +1,35 @@
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use crate::spec::{Cc, FramePointer, LinkerFlavor, Lld, Target, base};
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pub(crate) fn target() -> Target {
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let mut base = base::windows_gnu::opts();
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base.vendor = "win7".into();
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base.cpu = "pentium4".into();
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base.max_atomic_width = Some(64);
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base.frame_pointer = FramePointer::Always; // Required for backtraces
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base.linker = Some("i686-w64-mingw32-gcc".into());
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// Mark all dynamic libraries and executables as compatible with the larger 4GiB address
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// space available to x86 Windows binaries on x86_64.
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base.add_pre_link_args(LinkerFlavor::Gnu(Cc::No, Lld::No), &[
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"-m",
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"i386pe",
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"--large-address-aware",
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]);
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base.add_pre_link_args(LinkerFlavor::Gnu(Cc::Yes, Lld::No), &["-Wl,--large-address-aware"]);
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Target {
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llvm_target: "i686-pc-windows-gnu".into(),
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metadata: crate::spec::TargetMetadata {
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description: Some("32-bit MinGW (Windows 7+)".into()),
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tier: Some(3),
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host_tools: Some(false),
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std: Some(true),
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},
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pointer_width: 32,
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data_layout: "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
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i64:64-i128:128-f80:32-n8:16:32-a:0:32-S32"
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.into(),
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arch: "x86".into(),
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options: base,
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}
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}

Diff for: ‎compiler/rustc_target/src/spec/targets/x86_64_win7_windows_gnu.rs

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@@ -0,0 +1,32 @@
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use crate::spec::{Cc, LinkerFlavor, Lld, Target, base};
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pub(crate) fn target() -> Target {
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let mut base = base::windows_gnu::opts();
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base.vendor = "win7".into();
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base.cpu = "x86-64".into();
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base.plt_by_default = false;
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// Use high-entropy 64 bit address space for ASLR
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base.add_pre_link_args(LinkerFlavor::Gnu(Cc::No, Lld::No), &[
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"-m",
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"i386pep",
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"--high-entropy-va",
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]);
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base.add_pre_link_args(LinkerFlavor::Gnu(Cc::Yes, Lld::No), &["-m64", "-Wl,--high-entropy-va"]);
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base.max_atomic_width = Some(64);
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base.linker = Some("x86_64-w64-mingw32-gcc".into());
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Target {
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llvm_target: "x86_64-pc-windows-gnu".into(),
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metadata: crate::spec::TargetMetadata {
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description: Some("64-bit MinGW (Windows 7+)".into()),
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tier: Some(3),
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host_tools: Some(false),
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std: Some(true),
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},
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pointer_width: 64,
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data_layout:
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"e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
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arch: "x86_64".into(),
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options: base,
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}
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}

Diff for: ‎src/doc/rustc/src/SUMMARY.md

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@@ -98,6 +98,7 @@
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- [wasm32-unknown-unknown](platform-support/wasm32-unknown-unknown.md)
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- [wasm32v1-none](platform-support/wasm32v1-none.md)
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- [wasm64-unknown-unknown](platform-support/wasm64-unknown-unknown.md)
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- [\*-win7-windows-gnu](platform-support/win7-windows-gnu.md)
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- [\*-win7-windows-msvc](platform-support/win7-windows-msvc.md)
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- [x86_64-fortanix-unknown-sgx](platform-support/x86_64-fortanix-unknown-sgx.md)
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- [x86_64-pc-solaris](platform-support/solaris.md)

Diff for: ‎src/doc/rustc/src/platform-support.md

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@@ -313,6 +313,7 @@ target | std | host | notes
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[`i686-unknown-redox`](platform-support/redox.md) | ✓ | | i686 Redox OS
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`i686-uwp-windows-gnu` | ✓ | | [^x86_32-floats-return-ABI]
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[`i686-uwp-windows-msvc`](platform-support/uwp-windows-msvc.md) | ✓ | | [^x86_32-floats-return-ABI]
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[`i686-win7-windows-gnu`](platform-support/win7-windows-gnu.md) | ✓ | | 32-bit Windows 7 support [^x86_32-floats-return-ABI]
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[`i686-win7-windows-msvc`](platform-support/win7-windows-msvc.md) | ✓ | | 32-bit Windows 7 support [^x86_32-floats-return-ABI]
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[`i686-wrs-vxworks`](platform-support/vxworks.md) | ✓ | | [^x86_32-floats-return-ABI]
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[`loongarch64-unknown-linux-ohos`](platform-support/openharmony.md) | ✓ | | LoongArch64 OpenHarmony
@@ -410,6 +411,7 @@ target | std | host | notes
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[`x86_64-unknown-trusty`](platform-support/trusty.md) | ? | |
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`x86_64-uwp-windows-gnu` | ✓ | |
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[`x86_64-uwp-windows-msvc`](platform-support/uwp-windows-msvc.md) | ✓ | |
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[`x86_64-win7-windows-gnu`](platform-support/win7-windows-gnu.md) | ✓ | | 64-bit Windows 7 support
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[`x86_64-win7-windows-msvc`](platform-support/win7-windows-msvc.md) | ✓ | | 64-bit Windows 7 support
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[`x86_64-wrs-vxworks`](platform-support/vxworks.md) | ✓ | |
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[`x86_64h-apple-darwin`](platform-support/x86_64h-apple-darwin.md) | ✓ | ✓ | macOS with late-gen Intel (at least Haswell)

Diff for: ‎src/doc/rustc/src/platform-support/win7-windows-gnu.md

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# \*-win7-windows-gnu
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**Tier: 3**
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Windows targets continuing support of Windows 7.
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Target triples:
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- `i686-win7-windows-gnu`
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- `x86_64-win7-windows-gnu`
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## Target maintainers
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- @tbu-
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## Requirements
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This target supports all of core, alloc, std and test. Host
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tools may also work, though those are not currently tested.
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Those targets follow Windows calling convention for extern "C".
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Like any other Windows target, the created binaries are in PE format.
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## Building the target
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You can build Rust with support for the targets by adding it to the target list in config.toml:
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```toml
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[build]
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build-stage = 1
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target = ["x86_64-win7-windows-gnu"]
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```
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## Building Rust programs
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Rust does not ship pre-compiled artifacts for this target. To compile for this
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target, you will either need to build Rust with the target enabled (see
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"Building the target" above), or build your own copy by using `build-std` or
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similar.
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## Testing
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Created binaries work fine on Windows or Wine using native hardware. Remote
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testing is possible using the `remote-test-server` described [here](https://rustc-dev-guide.rust-lang.org/tests/running.html#running-tests-on-a-remote-machine).
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## Cross-compilation toolchains and C code
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Compatible C code can be built with gcc's `{i686,x86_64}-w64-mingw32-gcc`.

Diff for: ‎src/doc/rustc/src/platform-support/win7-windows-msvc.md

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# *-win7-windows-msvc
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# \*-win7-windows-msvc
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**Tier: 3**
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5-
Windows targets continuing support of windows7.
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Windows targets continuing support of Windows 7.
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Target triples:
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- `i686-win7-windows-msvc`
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- `x86_64-win7-windows-msvc`
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## Target maintainers
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Diff for: ‎tests/assembly/targets/targets-pe.rs

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@@ -39,6 +39,9 @@
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//@ revisions: i686_uwp_windows_gnu
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//@ [i686_uwp_windows_gnu] compile-flags: --target i686-uwp-windows-gnu
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//@ [i686_uwp_windows_gnu] needs-llvm-components: x86
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//@ revisions: i686_win7_windows_gnu
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//@ [i686_win7_windows_gnu] compile-flags: --target i686-win7-windows-gnu
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//@ [i686_win7_windows_gnu] needs-llvm-components: x86
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//@ revisions: i686_unknown_uefi
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//@ [i686_unknown_uefi] compile-flags: --target i686-unknown-uefi
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//@ [i686_unknown_uefi] needs-llvm-components: x86
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//@ revisions: x86_64_uwp_windows_gnu
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//@ [x86_64_uwp_windows_gnu] compile-flags: --target x86_64-uwp-windows-gnu
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//@ [x86_64_uwp_windows_gnu] needs-llvm-components: x86
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//@ revisions: x86_64_win7_windows_gnu
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//@ [x86_64_win7_windows_gnu] compile-flags: --target x86_64-win7-windows-gnu
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//@ [x86_64_win7_windows_gnu] needs-llvm-components: x86
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//@ revisions: x86_64_uwp_windows_msvc
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//@ [x86_64_uwp_windows_msvc] compile-flags: --target x86_64-uwp-windows-msvc
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//@ [x86_64_uwp_windows_msvc] needs-llvm-components: x86

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