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-rw-r--r--compiler/rustc_target/src/spec/base/aix.rs5
-rw-r--r--compiler/rustc_target/src/spec/base/apple/mod.rs5
-rw-r--r--compiler/rustc_target/src/spec/base/cygwin.rs5
-rw-r--r--compiler/rustc_target/src/spec/base/msvc.rs3
-rw-r--r--compiler/rustc_target/src/spec/base/wasm.rs5
-rw-r--r--compiler/rustc_target/src/spec/base/windows_gnu.rs5
-rw-r--r--compiler/rustc_target/src/spec/base/windows_gnullvm.rs5
-rw-r--r--compiler/rustc_target/src/spec/json.rs15
-rw-r--r--compiler/rustc_target/src/spec/mod.rs52
9 files changed, 90 insertions, 10 deletions
diff --git a/compiler/rustc_target/src/spec/base/aix.rs b/compiler/rustc_target/src/spec/base/aix.rs
index a92d104f910..aa42b4d1c50 100644
--- a/compiler/rustc_target/src/spec/base/aix.rs
+++ b/compiler/rustc_target/src/spec/base/aix.rs
@@ -1,6 +1,8 @@
 use rustc_abi::Endian;
 
-use crate::spec::{Cc, CodeModel, LinkOutputKind, LinkerFlavor, TargetOptions, crt_objects, cvs};
+use crate::spec::{
+    BinaryFormat, Cc, CodeModel, LinkOutputKind, LinkerFlavor, TargetOptions, crt_objects, cvs,
+};
 
 pub(crate) fn opts() -> TargetOptions {
     TargetOptions {
@@ -21,6 +23,7 @@ pub(crate) fn opts() -> TargetOptions {
         linker: Some("ld".into()),
         eh_frame_header: false,
         is_like_aix: true,
+        binary_format: BinaryFormat::Xcoff,
         default_dwarf_version: 3,
         function_sections: true,
         pre_link_objects: crt_objects::new(&[
diff --git a/compiler/rustc_target/src/spec/base/apple/mod.rs b/compiler/rustc_target/src/spec/base/apple/mod.rs
index 1b56143545f..66c85146c29 100644
--- a/compiler/rustc_target/src/spec/base/apple/mod.rs
+++ b/compiler/rustc_target/src/spec/base/apple/mod.rs
@@ -2,8 +2,8 @@ use std::borrow::Cow;
 use std::env;
 
 use crate::spec::{
-    Cc, DebuginfoKind, FloatAbi, FramePointer, LinkerFlavor, Lld, RustcAbi, SplitDebuginfo,
-    StackProbeType, StaticCow, TargetOptions, cvs,
+    BinaryFormat, Cc, DebuginfoKind, FloatAbi, FramePointer, LinkerFlavor, Lld, RustcAbi,
+    SplitDebuginfo, StackProbeType, StaticCow, TargetOptions, cvs,
 };
 
 #[cfg(test)]
@@ -116,6 +116,7 @@ pub(crate) fn base(
         dynamic_linking: true,
         families: cvs!["unix"],
         is_like_osx: true,
+        binary_format: BinaryFormat::MachO,
         // LLVM notes that macOS 10.11+ and iOS 9+ default
         // to v4, so we do the same.
         // https://github.com/llvm/llvm-project/blob/378778a0d10c2f8d5df8ceff81f95b6002984a4b/clang/lib/Driver/ToolChains/Darwin.cpp#L1203
diff --git a/compiler/rustc_target/src/spec/base/cygwin.rs b/compiler/rustc_target/src/spec/base/cygwin.rs
index fe3efb3f46b..819d1d68a71 100644
--- a/compiler/rustc_target/src/spec/base/cygwin.rs
+++ b/compiler/rustc_target/src/spec/base/cygwin.rs
@@ -1,6 +1,8 @@
 use std::borrow::Cow;
 
-use crate::spec::{Cc, DebuginfoKind, LinkerFlavor, Lld, SplitDebuginfo, TargetOptions, cvs};
+use crate::spec::{
+    BinaryFormat, Cc, DebuginfoKind, LinkerFlavor, Lld, SplitDebuginfo, TargetOptions, cvs,
+};
 
 pub(crate) fn opts() -> TargetOptions {
     let mut pre_link_args = TargetOptions::link_args(
@@ -32,6 +34,7 @@ pub(crate) fn opts() -> TargetOptions {
         exe_suffix: ".exe".into(),
         families: cvs!["unix"],
         is_like_windows: true,
+        binary_format: BinaryFormat::Coff,
         allows_weak_linkage: false,
         pre_link_args,
         late_link_args,
diff --git a/compiler/rustc_target/src/spec/base/msvc.rs b/compiler/rustc_target/src/spec/base/msvc.rs
index b0fb2ef4b27..486d7158723 100644
--- a/compiler/rustc_target/src/spec/base/msvc.rs
+++ b/compiler/rustc_target/src/spec/base/msvc.rs
@@ -1,6 +1,6 @@
 use std::borrow::Cow;
 
-use crate::spec::{DebuginfoKind, LinkerFlavor, Lld, SplitDebuginfo, TargetOptions};
+use crate::spec::{BinaryFormat, DebuginfoKind, LinkerFlavor, Lld, SplitDebuginfo, TargetOptions};
 
 pub(crate) fn opts() -> TargetOptions {
     // Suppress the verbose logo and authorship debugging output, which would needlessly
@@ -12,6 +12,7 @@ pub(crate) fn opts() -> TargetOptions {
         dll_tls_export: false,
         is_like_windows: true,
         is_like_msvc: true,
+        binary_format: BinaryFormat::Coff,
         pre_link_args,
         abi_return_struct_as_int: true,
         emit_debug_gdb_scripts: false,
diff --git a/compiler/rustc_target/src/spec/base/wasm.rs b/compiler/rustc_target/src/spec/base/wasm.rs
index 81b96cd39ff..88e7af5e669 100644
--- a/compiler/rustc_target/src/spec/base/wasm.rs
+++ b/compiler/rustc_target/src/spec/base/wasm.rs
@@ -1,6 +1,6 @@
 use crate::spec::{
-    Cc, LinkSelfContainedDefault, LinkerFlavor, PanicStrategy, RelocModel, TargetOptions, TlsModel,
-    add_link_args, cvs,
+    BinaryFormat, Cc, LinkSelfContainedDefault, LinkerFlavor, PanicStrategy, RelocModel,
+    TargetOptions, TlsModel, add_link_args, cvs,
 };
 
 pub(crate) fn options() -> TargetOptions {
@@ -53,6 +53,7 @@ pub(crate) fn options() -> TargetOptions {
 
     TargetOptions {
         is_like_wasm: true,
+        binary_format: BinaryFormat::Wasm,
         families: cvs!["wasm"],
 
         // we allow dynamic linking, but only cdylibs. Basically we allow a
diff --git a/compiler/rustc_target/src/spec/base/windows_gnu.rs b/compiler/rustc_target/src/spec/base/windows_gnu.rs
index 024b10f2faa..4ba11021988 100644
--- a/compiler/rustc_target/src/spec/base/windows_gnu.rs
+++ b/compiler/rustc_target/src/spec/base/windows_gnu.rs
@@ -1,8 +1,8 @@
 use std::borrow::Cow;
 
 use crate::spec::{
-    Cc, DebuginfoKind, LinkSelfContainedDefault, LinkerFlavor, Lld, SplitDebuginfo, TargetOptions,
-    add_link_args, crt_objects, cvs,
+    BinaryFormat, Cc, DebuginfoKind, LinkSelfContainedDefault, LinkerFlavor, Lld, SplitDebuginfo,
+    TargetOptions, add_link_args, crt_objects, cvs,
 };
 
 pub(crate) fn opts() -> TargetOptions {
@@ -90,6 +90,7 @@ pub(crate) fn opts() -> TargetOptions {
         exe_suffix: ".exe".into(),
         families: cvs!["windows"],
         is_like_windows: true,
+        binary_format: BinaryFormat::Coff,
         allows_weak_linkage: false,
         pre_link_args,
         pre_link_objects: crt_objects::pre_mingw(),
diff --git a/compiler/rustc_target/src/spec/base/windows_gnullvm.rs b/compiler/rustc_target/src/spec/base/windows_gnullvm.rs
index 4a6e7c75200..f24ad781e2b 100644
--- a/compiler/rustc_target/src/spec/base/windows_gnullvm.rs
+++ b/compiler/rustc_target/src/spec/base/windows_gnullvm.rs
@@ -1,6 +1,8 @@
 use std::borrow::Cow;
 
-use crate::spec::{Cc, DebuginfoKind, LinkerFlavor, Lld, SplitDebuginfo, TargetOptions, cvs};
+use crate::spec::{
+    BinaryFormat, Cc, DebuginfoKind, LinkerFlavor, Lld, SplitDebuginfo, TargetOptions, cvs,
+};
 
 pub(crate) fn opts() -> TargetOptions {
     // We cannot use `-nodefaultlibs` because compiler-rt has to be passed
@@ -30,6 +32,7 @@ pub(crate) fn opts() -> TargetOptions {
         exe_suffix: ".exe".into(),
         families: cvs!["windows"],
         is_like_windows: true,
+        binary_format: BinaryFormat::Coff,
         allows_weak_linkage: false,
         pre_link_args,
         late_link_args,
diff --git a/compiler/rustc_target/src/spec/json.rs b/compiler/rustc_target/src/spec/json.rs
index f703132e51f..134405f3630 100644
--- a/compiler/rustc_target/src/spec/json.rs
+++ b/compiler/rustc_target/src/spec/json.rs
@@ -103,6 +103,19 @@ impl Target {
                     base.$key_name = Some(s);
                 }
             } );
+            ($key_name:ident, BinaryFormat) => ( {
+                let name = (stringify!($key_name)).replace("_", "-");
+                obj.remove(&name).and_then(|f| f.as_str().and_then(|s| {
+                    match s.parse::<super::BinaryFormat>() {
+                        Ok(binary_format) => base.$key_name = binary_format,
+                        _ => return Some(Err(format!(
+                            "'{s}' is not a valid value for binary_format. \
+                            Use 'coff', 'elf', 'mach-o', 'wasm' or 'xcoff' "
+                        ))),
+                    }
+                    Some(Ok(()))
+                })).unwrap_or(Ok(()))
+            } );
             ($key_name:ident, MergeFunctions) => ( {
                 let name = (stringify!($key_name)).replace("_", "-");
                 obj.remove(&name).and_then(|o| o.as_str().and_then(|s| {
@@ -585,6 +598,7 @@ impl Target {
         key!(is_like_msvc, bool);
         key!(is_like_wasm, bool);
         key!(is_like_android, bool);
+        key!(binary_format, BinaryFormat)?;
         key!(default_dwarf_version, u32);
         key!(allows_weak_linkage, bool);
         key!(has_rpath, bool);
@@ -762,6 +776,7 @@ impl ToJson for Target {
         target_option_val!(is_like_msvc);
         target_option_val!(is_like_wasm);
         target_option_val!(is_like_android);
+        target_option_val!(binary_format);
         target_option_val!(default_dwarf_version);
         target_option_val!(allows_weak_linkage);
         target_option_val!(has_rpath);
diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs
index 65736770efb..761d2848a05 100644
--- a/compiler/rustc_target/src/spec/mod.rs
+++ b/compiler/rustc_target/src/spec/mod.rs
@@ -1644,6 +1644,55 @@ impl fmt::Display for StackProtector {
     }
 }
 
+#[derive(PartialEq, Clone, Debug)]
+pub enum BinaryFormat {
+    Coff,
+    Elf,
+    MachO,
+    Wasm,
+    Xcoff,
+}
+
+impl BinaryFormat {
+    /// Returns [`object::BinaryFormat`] for given `BinaryFormat`
+    pub fn to_object(&self) -> object::BinaryFormat {
+        match self {
+            Self::Coff => object::BinaryFormat::Coff,
+            Self::Elf => object::BinaryFormat::Elf,
+            Self::MachO => object::BinaryFormat::MachO,
+            Self::Wasm => object::BinaryFormat::Wasm,
+            Self::Xcoff => object::BinaryFormat::Xcoff,
+        }
+    }
+}
+
+impl FromStr for BinaryFormat {
+    type Err = ();
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        match s {
+            "coff" => Ok(Self::Coff),
+            "elf" => Ok(Self::Elf),
+            "mach-o" => Ok(Self::MachO),
+            "wasm" => Ok(Self::Wasm),
+            "xcoff" => Ok(Self::Xcoff),
+            _ => Err(()),
+        }
+    }
+}
+
+impl ToJson for BinaryFormat {
+    fn to_json(&self) -> Json {
+        match self {
+            Self::Coff => "coff",
+            Self::Elf => "elf",
+            Self::MachO => "mach-o",
+            Self::Wasm => "wasm",
+            Self::Xcoff => "xcoff",
+        }
+        .to_json()
+    }
+}
+
 macro_rules! supported_targets {
     ( $(($tuple:literal, $module:ident),)+ ) => {
         mod targets {
@@ -2381,6 +2430,8 @@ pub struct TargetOptions {
     pub is_like_wasm: bool,
     /// Whether a target toolchain is like Android, implying a Linux kernel and a Bionic libc
     pub is_like_android: bool,
+    /// Target's binary file format. Defaults to BinaryFormat::Elf
+    pub binary_format: BinaryFormat,
     /// Default supported version of DWARF on this platform.
     /// Useful because some platforms (osx, bsd) only want up to DWARF2.
     pub default_dwarf_version: u32,
@@ -2756,6 +2807,7 @@ impl Default for TargetOptions {
             is_like_msvc: false,
             is_like_wasm: false,
             is_like_android: false,
+            binary_format: BinaryFormat::Elf,
             default_dwarf_version: 4,
             allows_weak_linkage: true,
             has_rpath: false,
generated by cgit-pink 1.4.1-3-g733a5 (git 2.37.1) at 2025-11-07 13:04:26 +0000