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Bump compiler-builtins to 0.1.15
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This commit bumps the `compiler-builtins` dependency to 0.1.15 which
expects to have the source for `compiler-rt` provided externally if the
`c` feature is enabled. This then plumbs through the necessary support
in the build system to ensure that if the `llvm-project` directory is
checked out and present that we enable the `c` feature of
`compiler-builtins` and compile in all the C intrinsics.
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@alexcrichton
alexcrichton committed May 20, 2019
1 parent 589beb9 commit 69c6326
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Showing 4 changed files with 51 additions and 24 deletions.
34 changes: 17 additions & 17 deletions Cargo.lock
View file
Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,7 @@ dependencies = [
name = "alloc"
version = "0.0.0"
dependencies = [
"compiler_builtins 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
"core 0.0.0",
"rand 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
"rand_xorshift 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
Expand Down Expand Up @@ -123,7 +123,7 @@ version = "0.1.27"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc-std-workspace-core 1.0.0",
]
Expand Down Expand Up @@ -462,7 +462,7 @@ dependencies = [

[[package]]
name = "compiler_builtins"
version = "0.1.14"
version = "0.1.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)",
Expand Down Expand Up @@ -744,7 +744,7 @@ name = "dlmalloc"
version = "0.1.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"compiler_builtins 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc-std-workspace-core 1.0.0",
]
Expand Down Expand Up @@ -910,7 +910,7 @@ name = "fortanix-sgx-abi"
version = "0.3.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"compiler_builtins 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc-std-workspace-core 1.0.0",
]

Expand Down Expand Up @@ -1071,7 +1071,7 @@ name = "hashbrown"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"compiler_builtins 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc-std-workspace-alloc 1.0.0",
"rustc-std-workspace-core 1.0.0",
]
Expand Down Expand Up @@ -1772,7 +1772,7 @@ dependencies = [
name = "panic_abort"
version = "0.0.0"
dependencies = [
"compiler_builtins 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
"core 0.0.0",
"libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
]
Expand All @@ -1782,7 +1782,7 @@ name = "panic_unwind"
version = "0.0.0"
dependencies = [
"alloc 0.0.0",
"compiler_builtins 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
"core 0.0.0",
"libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
"unwind 0.0.0",
Expand Down Expand Up @@ -1967,7 +1967,7 @@ name = "profiler_builtins"
version = "0.0.0"
dependencies = [
"cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
"core 0.0.0",
]

Expand Down Expand Up @@ -2492,7 +2492,7 @@ name = "rustc-demangle"
version = "0.1.10"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"compiler_builtins 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc-std-workspace-core 1.0.0",
]

Expand Down Expand Up @@ -2620,7 +2620,7 @@ dependencies = [
"alloc 0.0.0",
"build_helper 0.1.0",
"cmake 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
"core 0.0.0",
]

Expand Down Expand Up @@ -2850,7 +2850,7 @@ dependencies = [
"alloc 0.0.0",
"build_helper 0.1.0",
"cmake 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
"core 0.0.0",
]

Expand Down Expand Up @@ -2912,7 +2912,7 @@ dependencies = [
"alloc 0.0.0",
"build_helper 0.1.0",
"cmake 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
"core 0.0.0",
]

Expand Down Expand Up @@ -3029,7 +3029,7 @@ dependencies = [
"alloc 0.0.0",
"build_helper 0.1.0",
"cmake 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
"core 0.0.0",
]

Expand Down Expand Up @@ -3298,7 +3298,7 @@ dependencies = [
"alloc 0.0.0",
"backtrace-sys 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
"cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
"core 0.0.0",
"dlmalloc 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
"fortanix-sgx-abi 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
Expand Down Expand Up @@ -3889,7 +3889,7 @@ name = "unwind"
version = "0.0.0"
dependencies = [
"cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
"compiler_builtins 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
"core 0.0.0",
"libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
]
Expand Down Expand Up @@ -4087,7 +4087,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
"checksum colored 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b0aa3473e85a3161b59845d6096b289bb577874cafeaf75ea1b1beaa6572c7fc"
"checksum commoncrypto 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d056a8586ba25a1e4d61cb090900e495952c7886786fc55f909ab2f819b69007"
"checksum commoncrypto-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1fed34f46747aa73dfaa578069fd8279d2818ade2b55f38f22a9401c7f4083e2"
"checksum compiler_builtins 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "e3f235c329e5cb9fa3d2ca2cc36256ba9a7f23fa76e0f4db6f68c23b73b2ac69"
"checksum compiler_builtins 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)" = "e899b947d7e71c3d35c0b6194d64025b84946640510e215090c815b20828964e"
"checksum compiletest_rs 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)" = "f40ecc9332b68270998995c00f8051ee856121764a0d3230e64c9efd059d27b6"
"checksum constant_time_eq 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8ff012e225ce166d4422e0e78419d901719760f62ae2b7969ca6b564d1b54a9e"
"checksum core-foundation 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)" = "4e2640d6d0bf22e82bed1b73c6aef8d5dd31e5abe6666c57e6d45e2649f4f887"
Expand Down
29 changes: 28 additions & 1 deletion src/bootstrap/compile.rs
View file
Original file line number Diff line number Diff line change
Expand Up @@ -161,7 +161,33 @@ pub fn std_cargo(builder: &Builder<'_>,
cargo.env("MACOSX_DEPLOYMENT_TARGET", target);
}

// Determine if we're going to compile in optimized C intrinsics to
// the `compiler-builtins` crate. These intrinsics live in LLVM's
// `compiler-rt` repository, but our `src/llvm-project` submodule isn't
// always checked out, so we need to conditionally look for this. (e.g. if
// an external LLVM is used we skip the LLVM submodule checkout).
//
// Note that this shouldn't affect the correctness of `compiler-builtins`,
// but only its speed. Some intrinsics in C haven't been translated to Rust
// yet but that's pretty rare. Other intrinsics have optimized
// implementations in C which have only had slower versions ported to Rust,
// so we favor the C version where we can, but it's not critical.
//
// If `compiler-rt` is available ensure that the `c` feature of the
// `compiler-builtins` crate is enabled and it's configured to learn where
// `compiler-rt` is located.
let compiler_builtins_root = builder.src.join("src/llvm-project/compiler-rt");
let compiler_builtins_c_feature = if compiler_builtins_root.exists() {
cargo.env("RUST_COMPILER_RT_ROOT", &compiler_builtins_root);
" compiler-builtins-c".to_string()
} else {
String::new()
};

if builder.no_std(target) == Some(true) {
let mut features = "compiler-builtins-mem".to_string();
features.push_str(&compiler_builtins_c_feature);

// for no-std targets we only compile a few no_std crates
cargo
.args(&["-p", "alloc"])
Expand All @@ -170,7 +196,8 @@ pub fn std_cargo(builder: &Builder<'_>,
.arg("--features")
.arg("compiler-builtins-mem compiler-builtins-c");
} else {
let features = builder.std_features();
let mut features = builder.std_features();
features.push_str(&compiler_builtins_c_feature);

if compiler.stage != 0 && builder.config.sanitizers {
// This variable is used by the sanitizer runtime crates, e.g.
Expand Down
6 changes: 3 additions & 3 deletions src/build_helper/lib.rs
View file
Original file line number Diff line number Diff line change
Expand Up @@ -288,9 +288,9 @@ pub fn sanitizer_lib_boilerplate(sanitizer_name: &str)
} else {
format!("static={}", link_name)
};
// The source for `compiler-rt` comes from the `compiler-builtins` crate, so
// load our env var set by cargo to find the source code.
let dir = env::var_os("DEP_COMPILER_RT_COMPILER_RT").unwrap();
// This env var is provided by rustbuild to tell us where `compiler-rt`
// lives.
let dir = env::var_os("RUST_COMPILER_RT_ROOT").unwrap();
let lib = native_lib_boilerplate(
dir.as_ref(),
sanitizer_name,
Expand Down
6 changes: 3 additions & 3 deletions src/libstd/Cargo.toml
View file
Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@ panic_unwind = { path = "../libpanic_unwind", optional = true }
panic_abort = { path = "../libpanic_abort" }
core = { path = "../libcore" }
libc = { version = "0.2.51", default-features = false, features = ['rustc-dep-of-std'] }
compiler_builtins = { version = "0.1.14" }
compiler_builtins = { version = "0.1.15" }
profiler_builtins = { path = "../libprofiler_builtins", optional = true }
unwind = { path = "../libunwind" }
hashbrown = { version = "0.3.0", features = ['rustc-dep-of-std'] }
Expand Down Expand Up @@ -49,12 +49,12 @@ fortanix-sgx-abi = { version = "0.3.2", features = ['rustc-dep-of-std'] }
cc = "1.0"

[features]
default = ["compiler_builtins_c", "std_detect_file_io", "std_detect_dlsym_getauxval"]
default = ["std_detect_file_io", "std_detect_dlsym_getauxval"]

backtrace = ["backtrace-sys"]
panic-unwind = ["panic_unwind"]
profiler = ["profiler_builtins"]
compiler_builtins_c = ["alloc/compiler-builtins-c"]
compiler-builtins-c = ["alloc/compiler-builtins-c"]
llvm-libunwind = ["unwind/llvm-libunwind"]

# Make panics and failed asserts immediately abort without formatting any message
Expand Down

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