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`jemalloc_replace_dynamic()` is badly broken. If you install a malloc table other than the default at startup (e.g. DMD's or PHC's), when you call `jemalloc_replace_dynamic()` it installs a new allocator that wraps the *default* allocator, and then when you call `jemalloc_replace_dynamic(nullptr)` it switches back to the *default* allocator. This commits makes numerous improvements. - It removes the "flip-flopping" between malloc tables, which didn't really work and isn't necessary. - `jemalloc_replace_dynamic()` now switches between the *original* malloc table and the new one, rather than the *default* malloc table and the new one. - It renames various things, to make the names shorter and clearer. - It clearly documents the dangers and limitations of `jemalloc_replace_dynamic()`. - It removes and inlines `profiler::Init()`, because there was only one call site. - It rearranges `install_memory_counter()` so the control flow is simpler. Differential Revision: https://phabricator.services.mozilla.com/D34266 --HG-- extra : moz-landing-system : lando |
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| .. | ||
| build | ||
| fallible | ||
| gtest | ||
| mozalloc | ||
| replace | ||
| volatile | ||
| app.mozbuild | ||
| moz.build | ||
| moz.configure | ||