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[bug#48525] [PATCH core-updates 2/2] gnu: rust: Add profiling support.
From: |
Milkey Mouse |
Subject: |
[bug#48525] [PATCH core-updates 2/2] gnu: rust: Add profiling support. |
Date: |
Tue, 25 May 2021 16:03:50 -0700 |
* gnu/packages/rust.scm (rust-1.52)
[phases]{unpack-profiler-rt, enable-profiling}: New phases.
[native-inputs]{compiler-rt-source}: New input.
---
gnu/packages/rust.scm | 24 +++++++++++++++++++++++-
1 file changed, 23 insertions(+), 1 deletion(-)
diff --git a/gnu/packages/rust.scm b/gnu/packages/rust.scm
index 6b769bfab2..7b77d791d1 100644
--- a/gnu/packages/rust.scm
+++ b/gnu/packages/rust.scm
@@ -853,7 +853,29 @@ safety and thread safety guarantees.")
(inherit base-rust)
(inputs
(alist-replace "llvm" (list llvm-12)
- (package-inputs base-rust))))))
+ (package-inputs base-rust)))
+ ;; Add compiler-rt-source for libprofiler_builtins (needed for profiling
+ ;; support), which normally vendors its own copy of compiler-rt.
+ (native-inputs (cons*
+ `("compiler-rt-source" ,(package-source
clang-runtime-12))
+ (package-native-inputs base-rust)))
+ (arguments
+ (substitute-keyword-arguments (package-arguments base-rust)
+ ((#:phases phases)
+ `(modify-phases ,phases
+ (add-after 'unpack 'unpack-profiler-rt
+ ;; Copy compiler-rt sources to where libprofiler_builtins
+ ;; looks for its vendored copy.
+ (lambda* (#:key inputs #:allow-other-keys)
+ (mkdir-p "src/llvm-project/compiler-rt")
+ (invoke "tar" "-xf" (assoc-ref inputs "compiler-rt-source")
+ "-C" "src/llvm-project/compiler-rt" "--strip-components=1")
+ #t))
+ (add-after 'enable-codegen-tests 'enable-profiling
+ (lambda _
+ (substitute* "config.toml"
+ (("^profiler =.*$") "")
+ (("[[]build[]]") "\n[build]\nprofiler = true\n")))))))))))
;;; Note: Only the latest versions of Rust are supported and tested. The
;;; intermediate rusts are built for bootstrapping purposes and should not
--
2.31.1