1750806 - Adding the ability to run Raptor through RR

Status: NEW

(Testing :: Raptor, task, P3)

Description

[Greg Mierzwinski [:sparky]]

This bug is for investigating adding the ability to run Raptor through RR. There are a good number of devs that use this for debugging so this would help them when it comes to investigating regressions.

Furthermore, we should also look into gdb using --debugger <> [--debugger-args <>].

In this bug, we should either implement a method for both of these methods, or come up with a plan to get them working.

Comment 1

[Dave Hunt [:davehunt] [he/him] ⌚BST]

:sparky do we have support for these in MozPerfTest?

Comment 2

[Greg Mierzwinski [:sparky]]

:davehunt, no we should implement this there as well as part of the tier-1 effort.

Comment 3

[Greg Mierzwinski [:sparky]]

:gerard-majax has done some hacking and found a way to get rr working with raptor using this patch:

diff --git a/testing/mozbase/rust/mozrunner/src/runner.rs b/testing/mozbase/rust/mozrunner/src/runner.rs
index 3f9c114785b72..f0f70da8a2399 100644
--- a/testing/mozbase/rust/mozrunner/src/runner.rs
+++ b/testing/mozbase/rust/mozrunner/src/runner.rs
@@ -160,11 +160,12 @@ impl FirefoxRunner {
     /// i.e. _/Applications/Firefox.app_, as well as to an executable program
     /// such as _/Applications/Firefox.app/Content/MacOS/firefox_.
     pub fn new(path: &Path, profile: Option<Profile>) -> FirefoxRunner {
+       let rr_path = "/home/alexandre/Documents/codaz/Mozilla/MiscWork/rr-install/bin/rr";
         FirefoxRunner {
-            path: path.to_path_buf(),
+            path: rr_path.into(),
             envs: HashMap::new(),
             profile,
-            args: vec![],
+            args: vec![path.into()],
             stdout: None,
             stderr: None,
         }

Comment 4

[Greg Mierzwinski [:sparky]]

Sorry for the need info!

Comment 5

[:gerard-majax]

Attachment: hack to run under rr (hardcoded path)