Teach rustc to write the ICE backtrace and query stack to disk

Cargo.lock

@@ -611,6 +611,16 @@ dependencies = [
  "tracing-tree",
 ]
 
+[[package]]
+name = "chrono"
+version = "0.2.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9213f7cd7c27e95c2b57c49f0e69b1ea65b27138da84a170133fd21b07659c00"
+dependencies = [
+ "num",
+ "time 0.1.43",
+]
+
 [[package]]
 name = "chrono"
 version = "0.4.19"
@@ -625,6 +635,15 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "ci_info"
+version = "0.14.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62a62f39080c8c83e899dff6abd46c4fac05c1cf8dafece96ad8238e79addbf8"
+dependencies = [
+ "envmnt",
+]
+
 [[package]]
 name = "clap"
 version = "3.2.20"
@@ -1414,6 +1433,16 @@ dependencies = [
  "termcolor",
 ]
 
+[[package]]
+name = "envmnt"
+version = "0.10.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d73999a2b8871e74c8b8bc23759ee9f3d85011b24fafc91a4b3b5c8cc8185501"
+dependencies = [
+ "fsio",
+ "indexmap",
+]
+
 [[package]]
 name = "errno"
 version = "0.2.8"
@@ -1619,6 +1648,15 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5f2a4a2034423744d2cc7ca2068453168dcdb82c438419e639a26bd87839c674"
 
+[[package]]
+name = "fsio"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dad0ce30be0cc441b325c5d705c8b613a0ca0d92b6a8953d41bd236dc09a36d0"
+dependencies = [
+ "dunce",
+]
+
 [[package]]
 name = "futf"
 version = "0.1.5"
@@ -2535,7 +2573,7 @@ checksum = "23f3e133c6d515528745ffd3b9f0c7d975ae039f0b6abb099f2168daa2afb4f9"
 dependencies = [
  "ammonia",
  "anyhow",
- "chrono",
+ "chrono 0.4.19",
  "clap 3.2.20",
  "clap_complete",
  "elasticlunr-rs",
@@ -2703,6 +2741,17 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "61807f77802ff30975e01f4f071c8ba10c022052f98b3294119f3e615d13e5be"
 
+[[package]]
+name = "num"
+version = "0.1.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4703ad64153382334aa8db57c637364c322d3372e097840c72000dabdcf6156e"
+dependencies = [
+ "num-integer",
+ "num-iter",
+ "num-traits",
+]
+
 [[package]]
 name = "num-integer"
 version = "0.1.43"
@@ -2713,6 +2762,17 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "num-iter"
+version = "0.1.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d03e6c028c5dc5cac6e2dec0efda81fc887605bb3d884578bb6d6bf7514e252"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
 [[package]]
 name = "num-traits"
 version = "0.2.12"
@@ -3915,9 +3975,13 @@ dependencies = [
 name = "rustc_driver"
 version = "0.0.0"
 dependencies = [
+ "backtrace",
+ "chrono 0.2.25",
+ "ci_info",
  "libc",
  "rustc_ast",
  "rustc_ast_pretty",
+ "rustc_codegen_llvm",
  "rustc_codegen_ssa",
  "rustc_data_structures",
  "rustc_error_codes",
@@ -3934,12 +3998,15 @@ dependencies = [
  "rustc_middle",
  "rustc_parse",
  "rustc_plugin_impl",
+ "rustc_query_impl",
+ "rustc_query_system",
  "rustc_save_analysis",
  "rustc_session",
  "rustc_span",
  "rustc_target",
  "serde_json",
  "tracing",
+ "urlqstring",
  "winapi",
 ]
 
@@ -5248,7 +5315,7 @@ version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b3c02f6eb7e7b4100c272f685a9ccaccaab302324e8c7ec3e2ee72340fb29ff3"
 dependencies = [
- "chrono",
+ "chrono 0.4.19",
  "log",
  "nom",
  "serde",
@@ -6054,6 +6121,12 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "urlqstring"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "25ef3473a06a065718d8ec7cd7acc6a35fc20f836dee7661ad3b64ea3cc2e0cc"
+
 [[package]]
 name = "utf-8"
 version = "0.7.5"

compiler/rustc_codegen_llvm/src/lib.rs

@@ -23,7 +23,7 @@ extern crate tracing;
 use back::write::{create_informational_target_machine, create_target_machine};
 
 use errors::FailParsingTargetMachineConfigToTargetMachine;
-pub use llvm_util::target_features;
+pub use llvm_util::{get_version, target_features};
 use rustc_ast::expand::allocator::AllocatorKind;
 use rustc_codegen_ssa::back::lto::{LtoModuleCodegen, SerializedModule, ThinModule};
 use rustc_codegen_ssa::back::write::{

compiler/rustc_driver/Cargo.toml

@@ -7,8 +7,12 @@ edition = "2021"
 crate-type = ["dylib"]
 
 [dependencies]
-tracing = { version = "0.1.35" }
+backtrace = "0.3.66"
 serde_json = "1.0.59"
+chrono = "0.2"
+ci_info = "0.14.9"
+urlqstring = "*"
+tracing = { version = "0.1.35" }
 rustc_log = { path = "../rustc_log" }
 rustc_middle = { path = "../rustc_middle" }
 rustc_ast_pretty = { path = "../rustc_ast_pretty" }
@@ -25,11 +29,14 @@ rustc_parse = { path = "../rustc_parse" }
 rustc_plugin_impl = { path = "../rustc_plugin_impl" }
 rustc_save_analysis = { path = "../rustc_save_analysis" }
 rustc_codegen_ssa = { path = "../rustc_codegen_ssa" }
+rustc_codegen_llvm = { path = "../rustc_codegen_llvm" }
 rustc_session = { path = "../rustc_session" }
 rustc_error_codes = { path = "../rustc_error_codes" }
 rustc_interface = { path = "../rustc_interface" }
 rustc_ast = { path = "../rustc_ast" }
 rustc_span = { path = "../rustc_span" }
+rustc_query_system = { path = "../rustc_query_system" }
+rustc_query_impl = { path = "../rustc_query_impl" }
 rustc_hir_analysis = { path = "../rustc_hir_analysis" }
 
 [target.'cfg(unix)'.dependencies]