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Add UWP MSVC targets #63155

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Aug 15, 2019
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2 changes: 1 addition & 1 deletion README.md
Original file line number Diff line number Diff line change
Expand Up @@ -144,7 +144,7 @@ then you may need to force rustbuild to use an older version. This can be done
by manually calling the appropriate vcvars file before running the bootstrap.

```batch
> CALL "C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Auxiliary\Build\vcvars64.bat"
> CALL "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvars64.bat"
> python x.py build
```

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14 changes: 14 additions & 0 deletions src/librustc_codegen_ssa/back/link.rs
Original file line number Diff line number Diff line change
Expand Up @@ -1027,6 +1027,20 @@ fn link_args<'a, B: ArchiveBuilder<'a>>(cmd: &mut dyn Linker,
let t = &sess.target.target;

cmd.include_path(&fix_windows_verbatim_for_gcc(&lib_path));

if t.linker_flavor == LinkerFlavor::Msvc && t.target_vendor == "uwp" {
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Can this happen inside get_linker where we're already executing find_tool?

let link_tool = windows_registry::find_tool("x86_64-pc-windows-msvc", "link.exe")
.expect("no path found for link.exe");
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This should report errors as first-class errors instead of panics, but for this case I think that all errors should be swallowed and this logic ignored. This could perhaps warn! on errors but it's probably not worthwhile to halt compilation if this fails.


let original_path = link_tool.path();
let root_lib_path = original_path.ancestors().skip(4).next().unwrap();
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Like above this'll want to have error handling to avoid the unwrap

if t.arch == "aarch64".to_string() {
cmd.include_path(&root_lib_path.join(format!("lib\\arm64\\store")));
} else {
cmd.include_path(&root_lib_path.join(format!("lib\\{}\\store", t.arch)));
}
}

for obj in codegen_results.modules.iter().filter_map(|m| m.object.as_ref()) {
cmd.add_object(obj);
}
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24 changes: 24 additions & 0 deletions src/librustc_target/spec/aarch64_uwp_windows_msvc.rs
Original file line number Diff line number Diff line change
@@ -0,0 +1,24 @@
use crate::spec::{LinkerFlavor, Target, TargetResult, PanicStrategy};

pub fn target() -> TargetResult {
let mut base = super::windows_uwp_msvc_base::opts();
base.max_atomic_width = Some(64);
base.has_elf_tls = true;

// FIXME: this shouldn't be panic=abort, it should be panic=unwind
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What's the background on this FIXME that causes it to exist? Does that belong in a comment or an issue?

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The AArch64 Windows backend didn't implement SEH unwinding when the aarch64-pc-windows-msvc target was first added, so I suspect this is the same as that. I haven't checked the LLVM backend recently to see if this works.

base.panic_strategy = PanicStrategy::Abort;

Ok(Target {
llvm_target: "aarch64-pc-windows-msvc".to_string(),
target_endian: "little".to_string(),
target_pointer_width: "64".to_string(),
target_c_int_width: "32".to_string(),
data_layout: "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128".to_string(),
arch: "aarch64".to_string(),
target_os: "windows".to_string(),
target_env: "msvc".to_string(),
target_vendor: "uwp".to_string(),
linker_flavor: LinkerFlavor::Msvc,
options: base,
})
}
22 changes: 22 additions & 0 deletions src/librustc_target/spec/i686_uwp_windows_msvc.rs
Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
use crate::spec::{LinkerFlavor, Target, TargetResult};

pub fn target() -> TargetResult {
let mut base = super::windows_uwp_msvc_base::opts();
base.cpu = "pentium4".to_string();
base.max_atomic_width = Some(64);
base.has_elf_tls = true;

Ok(Target {
llvm_target: "i686-pc-windows-msvc".to_string(),
target_endian: "little".to_string(),
target_pointer_width: "32".to_string(),
target_c_int_width: "32".to_string(),
data_layout: "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32".to_string(),
arch: "x86".to_string(),
target_os: "windows".to_string(),
target_env: "msvc".to_string(),
target_vendor: "uwp".to_string(),
linker_flavor: LinkerFlavor::Msvc,
options: base,
})
}
4 changes: 4 additions & 0 deletions src/librustc_target/spec/mod.rs
Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,7 @@ mod uefi_base;
mod windows_base;
mod windows_msvc_base;
mod windows_uwp_base;
mod windows_uwp_msvc_base;
mod thumb_base;
mod l4re_base;
mod fuchsia_base;
Expand Down Expand Up @@ -439,8 +440,11 @@ supported_targets! {
("x86_64-uwp-windows-gnu", x86_64_uwp_windows_gnu),

("aarch64-pc-windows-msvc", aarch64_pc_windows_msvc),
("aarch64-uwp-windows-msvc", aarch64_uwp_windows_msvc),
("x86_64-pc-windows-msvc", x86_64_pc_windows_msvc),
("x86_64-uwp-windows-msvc", x86_64_uwp_windows_msvc),
("i686-pc-windows-msvc", i686_pc_windows_msvc),
("i686-uwp-windows-msvc", i686_uwp_windows_msvc),
("i586-pc-windows-msvc", i586_pc_windows_msvc),
("thumbv7a-pc-windows-msvc", thumbv7a_pc_windows_msvc),

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33 changes: 33 additions & 0 deletions src/librustc_target/spec/windows_uwp_msvc_base.rs
Original file line number Diff line number Diff line change
@@ -0,0 +1,33 @@
use crate::spec::{LinkArgs, LinkerFlavor, TargetOptions};
use std::default::Default;

pub fn opts() -> TargetOptions {
let mut args = LinkArgs::new();
args.insert(LinkerFlavor::Msvc,
vec!["/NOLOGO".to_string(),
"/NXCOMPAT".to_string(),
"/APPCONTAINER".to_string(),
"mincore.lib".to_string()]);

TargetOptions {
function_sections: true,
dynamic_linking: true,
executables: true,
dll_prefix: String::new(),
dll_suffix: ".dll".to_string(),
exe_suffix: ".exe".to_string(),
staticlib_prefix: String::new(),
staticlib_suffix: ".lib".to_string(),
target_family: Some("windows".to_string()),
is_like_windows: true,
is_like_msvc: true,
pre_link_args: args,
crt_static_allows_dylibs: true,
crt_static_respected: true,
abi_return_struct_as_int: true,
emit_debug_gdb_scripts: false,
requires_uwtable: true,

.. Default::default()
}
}
22 changes: 22 additions & 0 deletions src/librustc_target/spec/x86_64_uwp_windows_msvc.rs
Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
use crate::spec::{LinkerFlavor, Target, TargetResult};

pub fn target() -> TargetResult {
let mut base = super::windows_uwp_msvc_base::opts();
base.cpu = "x86-64".to_string();
base.max_atomic_width = Some(64);
base.has_elf_tls = true;

Ok(Target {
llvm_target: "x86_64-pc-windows-msvc".to_string(),
target_endian: "little".to_string(),
target_pointer_width: "64".to_string(),
target_c_int_width: "32".to_string(),
data_layout: "e-m:w-i64:64-f80:128-n8:16:32:64-S128".to_string(),
arch: "x86_64".to_string(),
target_os: "windows".to_string(),
target_env: "msvc".to_string(),
target_vendor: "uwp".to_string(),
linker_flavor: LinkerFlavor::Msvc,
options: base,
})
}
2 changes: 1 addition & 1 deletion src/libstd/sys/windows/c.rs
Original file line number Diff line number Diff line change
Expand Up @@ -714,7 +714,7 @@ if #[cfg(target_vendor = "uwp")] {
pub struct FILE_STANDARD_INFO {
pub AllocationSize: LARGE_INTEGER,
pub EndOfFile: LARGE_INTEGER,
pub NumberOfLink: DWORD,
pub NumberOfLinks: DWORD,
pub DeletePending: BOOLEAN,
pub Directory: BOOLEAN,
}
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2 changes: 1 addition & 1 deletion src/libstd/sys/windows/fs.rs
Original file line number Diff line number Diff line change
Expand Up @@ -357,7 +357,7 @@ impl File {
size as c::DWORD))?;
attr.file_size = info.AllocationSize as u64;
attr.number_of_links = Some(info.NumberOfLinks);
if attr.is_reparse_point() {
if attr.file_type().is_reparse_point() {
let mut b = [0; c::MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
if let Ok((_, buf)) = self.reparse_point(&mut b) {
attr.reparse_tag = buf.ReparseTag;
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