Add tracing-tracy/-chrome deps to rustc_log

Also adds the features tracing-tracy and tracing-chrome to enable those dependencies and to enable tracing.
To properly make use of those features, they will need to be enableable from the bootstrap.
Note: tracing-tracy depends on tracy C++ files which are licensed under BSD-3-Clause (see https://github.com/wolfpld/tracy/blob/master/LICENSE ), which are not currently allowed by rustc (see rust-lang#63232 (comment) )

Author: Stypox

Cargo.lock

@@ -1413,6 +1413,19 @@ dependencies = [
  "windows-bindgen",
 ]
 
+[[package]]
+name = "generator"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc6bd114ceda131d3b1d665eba35788690ad37f5916457286b32ab6fd3c438dd"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "log",
+ "rustversion",
+ "windows 0.58.0",
+]
+
 [[package]]
 name = "generic-array"
 version = "0.14.7"
@@ -2163,6 +2176,19 @@ version = "0.4.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13dc2df351e3202783a1fe0d44375f7295ffb4049267b0f3018346dc122a1d94"
 
+[[package]]
+name = "loom"
+version = "0.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "419e0dc8046cb947daa77eb95ae174acfbddb7673b4151f56d1eed8e93fbfaca"
+dependencies = [
+ "cfg-if",
+ "generator",
+ "scoped-tls",
+ "tracing",
+ "tracing-subscriber",
+]
+
 [[package]]
 name = "lzma-sys"
 version = "0.1.20"
@@ -3487,6 +3513,7 @@ dependencies = [
  "rustc_hir",
  "rustc_index",
  "rustc_infer",
+ "rustc_log",
  "rustc_macros",
  "rustc_middle",
  "rustc_mir_dataflow",
@@ -3974,8 +4001,10 @@ name = "rustc_log"
 version = "0.0.0"
 dependencies = [
  "tracing",
+ "tracing-chrome",
  "tracing-core",
  "tracing-subscriber",
+ "tracing-tracy",
  "tracing-tree",
 ]
 
@@ -5379,6 +5408,17 @@ dependencies = [
  "syn 2.0.100",
 ]
 
+[[package]]
+name = "tracing-chrome"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "496b3cd5447f7ff527bbbf19b071ad542a000adf297d4127078b4dfdb931f41a"
+dependencies = [
+ "serde_json",
+ "tracing-core",
+ "tracing-subscriber",
+]
+
 [[package]]
 name = "tracing-core"
 version = "0.1.30"
@@ -5429,6 +5469,17 @@ dependencies = [
  "tracing-log",
 ]
 
+[[package]]
+name = "tracing-tracy"
+version = "0.11.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0eaa1852afa96e0fe9e44caa53dc0bd2d9d05e0f2611ce09f97f8677af56e4ba"
+dependencies = [
+ "tracing-core",
+ "tracing-subscriber",
+ "tracy-client",
+]
+
 [[package]]
 name = "tracing-tree"
 version = "0.3.1"
@@ -5441,6 +5492,27 @@ dependencies = [
  "tracing-subscriber",
 ]
 
+[[package]]
+name = "tracy-client"
+version = "0.18.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d90a2c01305b02b76fdd89ac8608bae27e173c829a35f7d76a345ab5d33836db"
+dependencies = [
+ "loom",
+ "once_cell",
+ "tracy-client-sys",
+]
+
+[[package]]
+name = "tracy-client-sys"
+version = "0.24.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "69fff37da548239c3bf9e64a12193d261e8b22b660991c6fd2df057c168f435f"
+dependencies = [
+ "cc",
+ "windows-targets 0.52.6",
+]
+
 [[package]]
 name = "twox-hash"
 version = "1.6.3"
@@ -5963,6 +6035,16 @@ dependencies = [
  "windows-targets 0.52.6",
 ]
 
+[[package]]
+name = "windows"
+version = "0.58.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dd04d41d93c4992d421894c18c8b43496aa748dd4c081bac0dc93eb0489272b6"
+dependencies = [
+ "windows-core 0.58.0",
+ "windows-targets 0.52.6",
+]
+
 [[package]]
 name = "windows"
 version = "0.59.0"
@@ -5996,6 +6078,19 @@ dependencies = [
  "windows-targets 0.52.6",
 ]
 
+[[package]]
+name = "windows-core"
+version = "0.58.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6ba6d44ec8c2591c134257ce647b7ea6b20335bf6379a27dac5f1641fcf59f99"
+dependencies = [
+ "windows-implement 0.58.0",
+ "windows-interface 0.58.0",
+ "windows-result 0.2.0",
+ "windows-strings 0.1.0",
+ "windows-targets 0.52.6",
+]
+
 [[package]]
 name = "windows-core"
 version = "0.59.0"
@@ -6033,6 +6128,17 @@ dependencies = [
  "syn 2.0.100",
 ]
 
+[[package]]
+name = "windows-implement"
+version = "0.58.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2bbd5b46c938e506ecbce286b6628a02171d56153ba733b6c741fc627ec9579b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.100",
+]
+
 [[package]]
 name = "windows-implement"
 version = "0.59.0"
@@ -6066,6 +6172,17 @@ dependencies = [
  "syn 2.0.100",
 ]
 
+[[package]]
+name = "windows-interface"
+version = "0.58.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "053c4c462dc91d3b1504c6fe5a726dd15e216ba718e84a0e46a88fbe5ded3515"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.100",
+]
+
 [[package]]
 name = "windows-interface"
 version = "0.59.1"
@@ -6092,6 +6209,15 @@ dependencies = [
  "windows-targets 0.52.6",
 ]
 
+[[package]]
+name = "windows-result"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d1043d8214f791817bab27572aaa8af63732e11bf84aa21a45a78d6c317ae0e"
+dependencies = [
+ "windows-targets 0.52.6",
+]
+
 [[package]]
 name = "windows-result"
 version = "0.3.2"
@@ -6101,6 +6227,16 @@ dependencies = [
  "windows-link",
 ]
 
+[[package]]
+name = "windows-strings"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4cd9b125c486025df0eabcb585e62173c6c9eddcec5d117d3b6e8c30e2ee4d10"
+dependencies = [
+ "windows-result 0.2.0",
+ "windows-targets 0.52.6",
+]
+
 [[package]]
 name = "windows-strings"
 version = "0.3.1"

compiler/rustc_log/Cargo.toml

@@ -6,12 +6,17 @@ edition = "2024"
 [dependencies]
 # tidy-alphabetical-start
 tracing = "0.1.28"
+tracing-chrome = { version = "0.7", optional = true }
 tracing-core = "=0.1.30" # FIXME(Nilstrieb) tracing has a deadlock: https://github.com/tokio-rs/tracing/issues/2635
 tracing-subscriber = { version = "0.3.3", default-features = false, features = ["fmt", "env-filter", "smallvec", "parking_lot", "ansi"] }
+tracing-tracy = { version = "0.11", optional = true }
 tracing-tree = "0.3.1"
 # tidy-alphabetical-end
 
 [features]
 # tidy-alphabetical-start
+default = ["tracing_chrome"] # TODO add to bootstrapping
 max_level_info = ['tracing/max_level_info']
+tracing_chrome = ['dep:tracing-chrome']
+tracing_tracy = ['dep:tracing-tracy']
 # tidy-alphabetical-end

src/tools/tidy/src/deps.rs

@@ -288,6 +288,7 @@ const PERMITTED_RUSTC_DEPENDENCIES: &[&str] = &[
     "fluent-syntax",
     "fnv",
     "foldhash",
+    "generator",
     "generic-array",
     "getopts",
     "getrandom",
@@ -319,6 +320,7 @@ const PERMITTED_RUSTC_DEPENDENCIES: &[&str] = &[
     "litemap",
     "lock_api",
     "log",
+    "loom",
     "matchers",
     "md-5",
     "measureme",
@@ -363,6 +365,7 @@ const PERMITTED_RUSTC_DEPENDENCIES: &[&str] = &[
     "rustc-stable-hash",
     "rustc_apfloat",
     "rustix",
+    "rustversion",
     "ruzstd", // via object in thorin-dwp
     "ryu",
     "scoped-tls",
@@ -396,10 +399,14 @@ const PERMITTED_RUSTC_DEPENDENCIES: &[&str] = &[
     "tinyvec_macros",
     "tracing",
     "tracing-attributes",
+    "tracing-chrome",
     "tracing-core",
     "tracing-log",
     "tracing-subscriber",
+    "tracing-tracy",
     "tracing-tree",
+    "tracy-client",
+    "tracy-client-sys",
     "twox-hash",
     "type-map",
     "typenum",