Fix aarch64-unknown-linux-gnu_ilp32 target

This was broken because the synthetic object files produced by rustc
were for 64-bit AArch64, which caused link failures when combined with
32-bit ILP32 object files.

This PR updates the object crate to 0.30.1 which adds support for
generating ILP32 AArch64 object files.

Cargo.lock

@@ -35,6 +35,17 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "ahash"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf6ccdb167abbf410dcb915cabd428929d7f6a04980b54a11f26a39f1c7f7107"
+dependencies = [
+ "cfg-if",
+ "once_cell",
+ "version_check",
+]
+
 [[package]]
 name = "aho-corasick"
 version = "0.7.18"
@@ -107,7 +118,7 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "276881980556fdadeb88aa1ffc667e4d2e8fe72531dfabcb7a82bb3c9ea9ba31"
 dependencies = [
- "object",
+ "object 0.29.0",
 ]
 
 [[package]]
@@ -193,7 +204,7 @@ dependencies = [
  "cfg-if",
  "libc",
  "miniz_oxide",
- "object",
+ "object 0.29.0",
  "rustc-demangle",
 ]
 
@@ -1650,9 +1661,9 @@ dependencies = [
 
 [[package]]
 name = "gimli"
-version = "0.26.1"
+version = "0.26.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78cc372d058dcf6d5ecd98510e7fbc9e5aec4d21de70f65fea8fecebcd881bd4"
+checksum = "22030e2c5a68ec659fde1e949a745124b48e6fa8b045b7ed5bd1fe4ccc5c4e5d"
 dependencies = [
  "compiler_builtins",
  "fallible-iterator",
@@ -1752,12 +1763,21 @@ version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 dependencies = [
- "ahash",
+ "ahash 0.7.4",
  "compiler_builtins",
  "rustc-std-workspace-alloc",
  "rustc-std-workspace-core",
 ]
 
+[[package]]
+name = "hashbrown"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33ff8ae62cd3a9102e5637afc8452c55acf3844001bd5374e0b0bd7b6616c038"
+dependencies = [
+ "ahash 0.8.2",
+]
+
 [[package]]
 name = "heck"
 version = "0.4.0"
@@ -1976,12 +1996,12 @@ checksum = "ce23b50ad8242c51a442f3ff322d56b02f08852c77e4c0b4d3fd684abc89c683"
 
 [[package]]
 name = "indexmap"
-version = "1.9.1"
+version = "1.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10a35a97730320ffe8e2d410b5d3b69279b98d2c14bdb8b70ea89ecf7888d41e"
+checksum = "1885e79c1fc4b10f0e172c475f458b7f7b93061064d98c3293e98c5ba0c8b399"
 dependencies = [
  "autocfg",
- "hashbrown",
+ "hashbrown 0.12.3",
  "rustc-rayon",
  "serde",
 ]
@@ -2578,15 +2598,24 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "21158b2c33aa6d4561f1c0a6ea283ca92bc54802a93b263e910746d679a7eb53"
 dependencies = [
  "compiler_builtins",
- "crc32fast",
- "flate2",
- "hashbrown",
- "indexmap",
  "memchr",
  "rustc-std-workspace-alloc",
  "rustc-std-workspace-core",
 ]
 
+[[package]]
+name = "object"
+version = "0.30.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d864c91689fdc196779b98dba0aceac6118594c2df6ee5d943eb6a8df4d107a"
+dependencies = [
+ "crc32fast",
+ "flate2",
+ "hashbrown 0.13.1",
+ "indexmap",
+ "memchr",
+]
+
 [[package]]
 name = "odht"
 version = "0.3.1"
@@ -3596,7 +3625,7 @@ dependencies = [
  "cstr",
  "libc",
  "measureme",
- "object",
+ "object 0.30.1",
  "rustc-demangle",
  "rustc_ast",
  "rustc_attr",
@@ -3631,7 +3660,7 @@ dependencies = [
  "itertools",
  "jobserver",
  "libc",
- "object",
+ "object 0.30.1",
  "pathdiff",
  "regex",
  "rustc_arena",
@@ -5062,11 +5091,11 @@ dependencies = [
  "core",
  "dlmalloc",
  "fortanix-sgx-abi",
- "hashbrown",
+ "hashbrown 0.12.3",
  "hermit-abi 0.2.6",
  "libc",
  "miniz_oxide",
- "object",
+ "object 0.29.0",
  "panic_abort",
  "panic_unwind",
  "profiler_builtins",
@@ -5298,13 +5327,13 @@ dependencies = [
 
 [[package]]
 name = "thorin-dwp"
-version = "0.3.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6cb0c7868d7f90407531108ab03263d9452a8811b7cdd87675343a40d4aa254"
+checksum = "da8fbf660a019b6bf11ea95762041464aa9099cc293b6a66d77cea5107619671"
 dependencies = [
  "gimli",
- "hashbrown",
- "object",
+ "hashbrown 0.12.3",
+ "object 0.30.1",
  "tracing",
 ]
 
@@ -5813,9 +5842,9 @@ checksum = "6454029bf181f092ad1b853286f23e2c507d8e8194d01d92da4a55c274a5508c"
 
 [[package]]
 name = "version_check"
-version = "0.9.3"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5fecdca9a5291cc2b8dcf7dc02453fee791a280f3743cb0905f8822ae463b3fe"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
 [[package]]
 name = "vte"

compiler/rustc_codegen_llvm/Cargo.toml

@@ -11,7 +11,10 @@ bitflags = "1.0"
 cstr = "0.2"
 libc = "0.2"
 measureme = "10.0.0"
-object = { version = "0.29.0", default-features = false, features = ["std", "read"] }
+object = { version = "0.30.1", default-features = false, features = [
+    "std",
+    "read",
+] }
 tracing = "0.1"
 rustc_middle = { path = "../rustc_middle" }
 rustc-demangle = "0.1.21"

compiler/rustc_codegen_ssa/Cargo.toml

@@ -15,7 +15,7 @@ tracing = "0.1"
 libc = "0.2.50"
 jobserver = "0.1.22"
 tempfile = "3.2"
-thorin-dwp = "0.3"
+thorin-dwp = "0.4"
 pathdiff = "0.2.0"
 serde_json = "1.0.59"
 snap = "1"
@@ -43,6 +43,6 @@ rustc_session = { path = "../rustc_session" }
 rustc_const_eval = { path = "../rustc_const_eval" }
 
 [dependencies.object]
-version = "0.29.0"
+version = "0.30.1"
 default-features = false
 features = ["read_core", "elf", "macho", "pe", "unaligned", "archive", "write"]

compiler/rustc_codegen_ssa/src/back/metadata.rs

@@ -100,7 +100,13 @@ pub(crate) fn create_object_file(sess: &Session) -> Option<write::Object<'static
     };
     let architecture = match &sess.target.arch[..] {
         "arm" => Architecture::Arm,
-        "aarch64" => Architecture::Aarch64,
+        "aarch64" => {
+            if sess.target.pointer_width == 32 {
+                Architecture::Aarch64_Ilp32
+            } else {
+                Architecture::Aarch64
+            }
+        }
         "x86" => Architecture::I386,
         "s390x" => Architecture::S390x,
         "mips" => Architecture::Mips,