[REPL] more reliable extension loading #58415
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vtjnash
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backport 1.11
If REPL is loaded explicitly and does not come from a require_stdlib call, it should not be getting REPLExt from a require_stdlib call either. This is a convoluted bit of hackery specific to work around problems with the way Pkg's REPLExt is designed to mutate the REPL in unsafe ways. No other stdlib should ever want to access an extension, so this only needs to be made to work specifically for that REPL-Pkg scenario, even if it looks seemingly more general.
It'd be good to figure out the correct way to mutate the REPL i.e. #54890 |
KristofferC
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May 20, 2025
A weird edge case of loading, if REPL is loaded explicitly and does not come from a require_stdlib call, it should not be getting REPLExt from a require_stdlib call either. This is a convoluted bit of hackery specific to work around problems with the way Pkg's REPLExt is designed to mutate the REPL in unsafe ways. No other stdlib should ever want to access an extension, particularly of a different module, as that is a private API violation on multiple counts, so this only needs to be made to work specifically for that REPL-Pkg scenario, even if it looks seemingly more general. Refs #58373 Reproducer: ``` JULIA_DEPOT_PATH=tmpdir/.julia ./julia --hist=no -qie 'using REPL' ] status ``` (cherry picked from commit 94570e1)
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DilumAluthge
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Sep 5, 2025
Backported PRs: - [x] #54840 <!-- Add boundscheck in speccache_eq to avoid OOB access due to data race --> - [x] #42080 <!-- recommend explicit `using Foo: Foo, ...` in package code (was: "using considered harmful") --> - [x] #58127 <!-- [DOC] Update installation docs: /downloads/ => /install/ --> - [x] #58202 <!-- [release-1.11] malloc: use jl_get_current_task to fix null check --> - [x] #58584 <!-- Make `Ptr` values static-show w/ type-information --> - [x] #58637 <!-- Make late gc lower handle insertelement of alloca use. --> - [x] #58837 <!-- fix null comparisons for non-standard address spaces --> - [x] #57826 <!-- Add a `similar` method for `Type{<:CodeUnits}` --> - [x] #58293 <!-- fix trailing indices stackoverflow in reinterpreted array --> - [x] #58887 <!-- Pkg: Allow configuring can_fancyprint(io::IO) using IOContext --> - [x] #58937 <!-- Fix nthreadpools size in JLOptions --> - [x] #58978 <!-- Fix precompilepkgs warn loaded setting --> - [x] #58998 <!-- Bugfix: Use Base.aligned_sizeof instead of sizeof in Mmap.mmap --> - [x] #59120 <!-- Fix memory order typo in "src/julia_atomics.h" --> - [x] #59170 <!-- Clarify and enhance confusing precompile test --> Need manual backport: - [ ] #56329 <!-- loading: clean up more concurrency issues --> - [ ] #56956 <!-- Add "mea culpa" to foreign module assignment error. --> - [ ] #57035 <!-- linux: workaround to avoid deadlock inside dl_iterate_phdr in glibc --> - [ ] #57089 <!-- Block thread from receiving profile signal with stackwalk lock --> - [ ] #57249 <!-- restore non-freebsd-unix fix for profiling --> - [ ] #58011 <!-- Remove try-finally scope from `@time_imports` `@trace_compile` `@trace_dispatch` --> - [ ] #58062 <!-- remove unnecessary edge from `exp_impl` to `pow` --> - [ ] #58157 <!-- add showing a string to REPL precompile workload --> - [ ] #58209 <!-- Specialize `one` for the `SizedArray` test helper --> - [ ] #58108 <!-- Base.get_extension & Dates.format made public --> - [ ] #58356 <!-- codegen: remove readonly from abstract type calling convention --> - [ ] #58415 <!-- [REPL] more reliable extension loading --> - [ ] #58510 <!-- Don't filter `Core` methods from newly-inferred list --> - [ ] #58110 <!-- relax dispatch for the `IteratorSize` method for `Generator` --> - [ ] #58965 <!-- Fix `hygienic-scope`s in inner macro expansions --> - [ ] #58971 <!-- Fix alignment of failed precompile jobs on CI --> - [ ] #59066 <!-- build: Also pass -fno-strict-aliasing for C++ --> Contains multiple commits, manual intervention needed: - [ ] #55877 <!-- fix FileWatching designs and add workaround for a stat bug on Apple --> - [ ] #56755 <!-- docs: fix scope type of a `struct` to hard --> - [ ] #57809 <!-- Fix fptrunc Float64 -> Float16 rounding through Float32 --> - [ ] #57398 <!-- Make remaining float intrinsics require float arguments --> - [ ] #56351 <!-- Fix `--project=@script` when outside script directory --> - [ ] #57129 <!-- clarify that time_ns is monotonic --> - [ ] #58134 <!-- Note annotated string API is experimental in Julia 1.11 in HISTORY.md --> - [ ] #58401 <!-- check that hashing of types does not foreigncall (`jl_type_hash` is concrete evaluated) --> - [ ] #58435 <!-- Fix layout flags for types that have oddly sized primitive type fields --> - [ ] #58483 <!-- Fix tbaa usage when storing into heap allocated immutable structs --> - [ ] #58512 <!-- Make more types jl_static_show readably --> - [ ] #58012 <!-- Re-enable tab completion of kwargs for large method tables --> - [ ] #58683 <!-- Add 0 predecessor to entry basic block and handle it in inlining --> - [ ] #59112 <!-- Add builtin function name to add methods error --> Non-merged PRs with backport label: - [ ] #59329 <!-- aotcompile: destroy LLVM context after serializing combined module --> - [ ] #58848 <!-- Set array size only when safe to do so --> - [ ] #58535 <!-- gf.c: include const-return methods in `--trace-compile` --> - [ ] #58038 <!-- strings/cstring: `transcode`: prevent Windows sysimage invalidation --> - [ ] #57604 <!-- `@nospecialize` for `string_index_err` --> - [ ] #57366 <!-- Use ptrdiff_t sized offsets for gvars_offsets to allow large sysimages --> - [ ] #56890 <!-- Enable getting non-boxed LLVM type from Julia Type --> - [ ] #56823 <!-- Make version of opaque closure constructor in world --> - [ ] #55958 <!-- also redirect JL_STDERR etc. when redirecting to devnull --> - [ ] #55956 <!-- Make threadcall gc safe --> - [ ] #55534 <!-- Set stdlib sources as read-only during installation --> - [ ] #55499 <!-- propagate the terminal's `displaysize` to the `IOContext` used by the REPL --> - [ ] #55458 <!-- Allow for generically extracting unannotated string --> - [ ] #55457 <!-- Make AnnotateChar equality consider annotations --> - [ ] #55220 <!-- `isfile_casesensitive` fixes on Windows --> - [ ] #53957 <!-- tweak how filtering is done for what packages should be precompiled --> - [ ] #51479 <!-- prevent code loading from lookin in the versioned environment when building Julia --> - [ ] #50813 <!-- More doctests for Sockets and capitalization fix --> - [ ] #50157 <!-- improve docs for `@inbounds` and `Base.@propagate_inbounds` --> --------- Co-authored-by: Kiran Pamnany <[email protected]> Co-authored-by: adienes <[email protected]> Co-authored-by: Gabriel Baraldi <[email protected]> Co-authored-by: Keno Fischer <[email protected]> Co-authored-by: Simeon David Schaub <[email protected]> Co-authored-by: Jameson Nash <[email protected]> Co-authored-by: Alex Arslan <[email protected]> Co-authored-by: Fons van der Plas <[email protected]> Co-authored-by: Ian Butterworth <[email protected]> Co-authored-by: JonasIsensee <[email protected]> Co-authored-by: Curtis Vogt <[email protected]> Co-authored-by: Dilum Aluthge <[email protected]> Co-authored-by: DilumAluthgeBot <[email protected]> Co-authored-by: DilumAluthge <[email protected]>
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A weird edge case of loading, if REPL is loaded explicitly and does not come from a require_stdlib call, it should not be getting REPLExt from a require_stdlib call either. This is a convoluted bit of hackery specific to work around problems with the way Pkg's REPLExt is designed to mutate the REPL in unsafe ways. No other stdlib should ever want to access an extension, particularly of a different module, as that is a private API violation on multiple counts, so this only needs to be made to work specifically for that REPL-Pkg scenario, even if it looks seemingly more general.
Refs #58373
Reproducer: