November 2023 - ruby-core - ml.ruby-lang.org

[ruby-core:114345] [Ruby master Bug#19831] warning message of linker with macOS Sonoma beta
by hsbt (Hiroshi SHIBATA) 26 Dec '23

26 Dec '23

Issue #19831 has been reported by hsbt (Hiroshi SHIBATA). ---------------------------------------- Bug #19831: warning message of linker with macOS Sonoma beta https://bugs.ruby-lang.org/issues/19831 * Author: hsbt (Hiroshi SHIBATA) * Status: Open * Priority: Normal * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- Xcode 15 beta and macOS Sonoma beta show the following warnings with `make` ``` (snip) linking miniruby ld: warning: ignoring duplicate library '-lpthread' miniruby: replacing existing signature exe/ruby: replacing existing signature builtin_binary.inc updated compiling builtin.c linking static-library libruby.3.3-static.a linking ruby ld: warning: ignoring duplicate library '-lgmp' ld: warning: ignoring duplicate library '-ldl' ld: warning: ignoring duplicate library '-lobjc' ld: warning: ignoring duplicate library '-lpthread' ld: warning: ignoring duplicate library '-lpthread' (snip) ``` I'm not investigate that yet. It may be caused by `ld-prime` that is new linker of macOS platform. ``` $ pkgutil --pkg-info=com.apple.pkg.CLTools_Executables package-id: com.apple.pkg.CLTools_Executables version: 15.0.0.0.1.1690355577 volume: / location: / install-time: 1690967267 ``` -- https://bugs.ruby-lang.org/

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[ruby-core:111739] [Ruby master Feature#19324] Enumerator.product => Enumerable#product
by zverok (Victor Shepelev) 23 Dec '23

23 Dec '23

Issue #19324 has been reported by zverok (Victor Shepelev). ---------------------------------------- Feature #19324: Enumerator.product => Enumerable#product https://bugs.ruby-lang.org/issues/19324 * Author: zverok (Victor Shepelev) * Status: Open * Priority: Normal ---------------------------------------- I know it might be too late after introducing a feature and releasing a version, but I find `Enumerator.product` quite confusing, and can't find any justification in #18685. **Problem 1: It is `Array#product` but `Enumerator.product`** ```ruby [1, 2].product([4, 5]) # => [[1, 4], [1, 5], [2, 4], [2, 5]] # Usually, when we add methods to Enumerable/Enumerator which # already array had before, it is symmetric, say... [1, nil, 2, 3].compact #=> [1, 2, 3] [1, nil, 2, 3].lazy.compact.first(2) #=> [1, 2] # But not in this case: [1, 2].lazy.product([4, 5]).first(2) # undefined method `product' for #<Enumerator::Lazy: [1, 2]> (NoMethodError) # Because you "just" need to change it to: Enumerator.product([1, 2].lazy, [4, 5]).first(2) # => [[1, 4], [1, 5]] ``` No other method was "promoted" from Array this way And in general, I believe core methods tend to belong to the first object in the expression and not be free module methods, Elixir style. **Problem 2: It is one letter different from `Enumerator.produce`** I understand I might be biased here (as a person who proposed `produce`), and that method is not as popular (yet?) as I hoped, but still, two methods that do completely different things and differ by one letter, both being somewhat vague verbs (so it is easy to confuse them unless you did a lot of math and "product" is firmly set for set product in your head). I believe that EITHER of two problems would be concerning enough, but the combination of them seems to be a strong enough argument to make the change?.. (Maybe with graceful deprecation of module method in one next version, but, considering the Ruby 3.2 is just released, maybe vice versa, fix the problem in the next minor release?..) -- https://bugs.ruby-lang.org/

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[ruby-core:111988] [Ruby master Feature#19370] Anonymous parameters for blocks?
by zverok (Victor Shepelev) 23 Dec '23

23 Dec '23

Issue #19370 has been reported by zverok (Victor Shepelev). ---------------------------------------- Feature #19370: Anonymous parameters for blocks? https://bugs.ruby-lang.org/issues/19370 * Author: zverok (Victor Shepelev) * Status: Open * Priority: Normal ---------------------------------------- Just to clarify: are anonymous parameters delegation is planned to support in blocks? It would be a nice addition, if it is possible to implement: ```ruby # data in form [request method, URL, params]: [ [:get, 'https://google.com', {q: 'Ruby'}, {'User-Argent': 'Google-Chrome'}], [:post, 'https://gist.github.com', 'body'], # ... ].each { |method, *| request(method.to_s.upcase, *) } ``` ...and at the very least, consistent with what the method definition can have. If they are NOT planned to be implemented, I believe that at least error messages should be made much clearer, because currently, this would happen while running the code above: > no anonymous rest parameter (SyntaxError) I understand the reason (the `request` clause doesn't "see" anonymous parameter of the **block**, and claims that current **method** doesn't have them), but it looks honestly confusing and inconsistent. -- https://bugs.ruby-lang.org/

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[ruby-core:115525] [Ruby master Feature#20027] Range Deconstruction
by stuyam (Stuart Yamartino) 22 Dec '23

22 Dec '23

Issue #20027 has been reported by stuyam (Stuart Yamartino). ---------------------------------------- Feature #20027: Range Deconstruction https://bugs.ruby-lang.org/issues/20027 * Author: stuyam (Stuart Yamartino) * Status: Open * Priority: Normal ---------------------------------------- Ranges are a powerful tool in ruby. A common range I use is a date range such as `(Date.yesterday..Date.tomorrow)`. A range will often be passed around to methods because the dates hold meaning together such as a timeframe for a table filter. Often I want to grab the original values out of a range like: ```ruby timeframe = (Date.yesterday..Date.tomorrow) start_date = timeframe.begin end_date = timeframe.end #=> start_date = yesterday #=> end_date = today ``` Similar to array and hash deconstruction I thought it would be useful to support range deconstruction like this: ```ruby start_date, end_date = (Date.yesterday..Date.tomorrow) #=> start_date = yesterday #=> end_date = today ``` This would also work for endless or beginless ranges since the beginning and end are just nil in those cases: ```ruby start_date, end_day = ..Date.tomorrow #=> start_date = nil #=> end_date = tomorrow ``` You could do this now using `to_a` like: ```ruby start_date, *middle_dates, end_date = (Date.new(2000,1,1)..Date.new(2023,1,1).to_a ``` However this has unnecessary performance issues by converting the range to an array especially if the range spans a large period, `middle_dates` would hold a very large array. Also if the range resulted in an array with 2 values, `end_date` would be nil and this wouldn't actually work to get the begin and end values. I think this provides a simple interface for a common pattern of deconstructing ranges into their beginning and end values. It would be useful for ranges regardless of date ranges or other types of ranges since they are essentially tuples. Would love to know what others think about this <3 -- https://bugs.ruby-lang.org/

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[ruby-core:115547] [Ruby master Bug#20029] coroutine/arm64/Context.S does not support PAC/BTI
by ggardet (Guillaume GARDET) 22 Dec '23

22 Dec '23

Issue #20029 has been reported by ggardet (Guillaume GARDET). ---------------------------------------- Bug #20029: coroutine/arm64/Context.S does not support PAC/BTI https://bugs.ruby-lang.org/issues/20029 * Author: ggardet (Guillaume GARDET) * Status: Open * Priority: Normal * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- On aarch64/arm64, when we build with `-mbranch-protection=standard` to enable Pointer Authentication (PAC) and Branch Target Identification (BTI), the final link disable them, because `coroutine/arm64/Context.S` does not support PAC and BTI. The following warning message shows the issue: ``` [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: coroutine/arm64/Context.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. ``` More information on : * PAC: https://developer.arm.com/documentation/102433/0100/Return-oriented-program… * BTI: https://developer.arm.com/documentation/102433/0100/Jump-oriented-programmi… There are also more warning displayed (with LDFLAG `-z force-bti`) which may be related to assembler file above: ``` [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans0.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans1.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans2.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans3.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans4.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans5.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans6.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans7.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans8.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans9.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans10.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans11.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans12.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans13.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans14.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans15.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans16.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans17.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans18.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans19.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans20.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans21.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans22.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans23.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans24.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans25.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans26.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans27.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans28.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans29.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans30.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans31.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans32.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans33.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans34.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans35.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans36.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans37.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans38.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans39.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans40.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans41.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans42.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans43.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans44.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans45.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans46.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans47.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans48.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans49.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans50.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans51.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans52.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans53.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans54.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans55.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans56.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans57.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans58.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans59.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans60.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans61.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdOARjY.ltrans62.ltrans.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cciywru6.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccYLAnEK.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccOMDWM2.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccKwSfx4.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cc0UcZ79.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccwFEvxB.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccA7PZWl.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cco1BWs5.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cc69GwWR.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccQJRoGg.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccQxdgKL.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccwlSFnu.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccIV93Ty.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cc80Z1I6.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccQvoKBh.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccF4fgVR.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccnZTEeL.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccB6xnUm.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cclysC9W.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdecmLz.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccjPDXPI.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccJZkU7F.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cc3YUbr0.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccbjv5UA.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cchyvXDw.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cc5fXOY1.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccSA56NP.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccBC6NTp.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccx0LSGH.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccpe97Jt.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cc1fcXeN.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccvPkzas.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccLVhLtG.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cc1P8AOZ.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccHFgC67.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccdobe5Z.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cczj5fpf.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccnx7HaS.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cclgpgcE.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccFCFv3m.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccL90EU9.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccJM9ZKx.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cc7E7N3b.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccrD7el8.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccDRbeGd.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccnz25d3.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccx2kRDb.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cc8qpL5K.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccTxXwIE.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccyhtIpt.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccw06qxn.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccujdk33.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccapzdM7.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccyrE5Dy.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccK1tthq.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccYStpJT.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccoyuoLI.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cca3ZE6u.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccmjRQkR.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccWhZhgr.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccg86XO6.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccEUTnCx.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cccqt0zE.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccYsIhcV.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cciZniaF.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cc8PHs6I.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccwsJEPt.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cc28q1jl.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccYS3JH0.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cc81r5f4.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccWnQamA.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccKBgOZ8.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccEeEDFw.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/cc0Radx5.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccUqQpiO.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccGZBM2N.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccKrvFKD.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccVqBIQB.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccaBdhfy.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccuz5CcU.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. [ 133s] /usr/lib64/gcc/aarch64-suse-linux/13/../../../../aarch64-suse-linux/bin/ld: /tmp/ccGfkAbz.debug.temp.o: warning: BTI turned on by -z force-bti when all inputs do not have BTI in NOTE section. ``` -- https://bugs.ruby-lang.org/

5 4

[ruby-core:115188] [Ruby master Bug#19977] (nil..nil) === x can raise an exception, differing from Range#cover?
by kyanagi (Kouhei Yanagita) 22 Dec '23

22 Dec '23

Issue #19977 has been reported by kyanagi (Kouhei Yanagita). ---------------------------------------- Bug #19977: (nil..nil) === x can raise an exception, differing from Range#cover? https://bugs.ruby-lang.org/issues/19977 * Author: kyanagi (Kouhei Yanagita) * Status: Open * Priority: Normal * ruby -v: ruby 3.3.0dev (2023-10-27T03:13:17Z master f9f0cfe785) [arm64-darwin22] * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- I investigated Range#=== and Range#cover?, and found that the only difference in behavior between them would be that `(nil..nil) === x` could throw an exception. ``` % ~/tmp/ruby-master/bin/ruby -v ruby 3.3.0dev (2023-10-27T03:13:17Z master f9f0cfe785) [arm64-darwin22] ``` ``` % ~/tmp/ruby-master/bin/ruby -e 'p (nil..nil) === "a"' -e:1:in `===': cannot determine inclusion in beginless/endless ranges (TypeError) p (nil..nil) === "a" ^^^ from -e:1:in `<main>' ``` ``` % ~/tmp/ruby-master/bin/ruby -e 'p (nil..nil).cover?("a")' true ``` Is this difference intended? According to NEWS, `Range#===` uses `cover?` since Ruby 2.6 (For `String`, since Ruby 2.7). Following this, `(nil..nil) === x` should not throw an exception in the same way as `(nil..nil).cover?(x)`. history: `(nil..nil) === "a"` throws an exception since https://github.com/ruby/ruby/commit/04a92a6. For "linear objects" (`Integer`, `Float`, `Numeric`, `Time`), it has beed fixed not to throw an exception on https://github.com/ruby/ruby/commit/fb17c83. related issues: * [Bug #15449] Range#=== is not using cover in Ruby 2.6 * [Bug #18580] Range#include? inconsistency for beginless String ranges * [Bug #19533] Behavior of ===/include? on a beginless/endless range (nil..nil) changed in ruby 3.2 -- https://bugs.ruby-lang.org/

2 5

[ruby-core:115550] [Ruby master Bug#20031] Regexp using greedy quantifier and unions on a big string uses a lot of memory
by FabienChaynes (Fabien Chaynes) 21 Dec '23

21 Dec '23

Issue #20031 has been reported by FabienChaynes (Fabien Chaynes). ---------------------------------------- Bug #20031: Regexp using greedy quantifier and unions on a big string uses a lot of memory https://bugs.ruby-lang.org/issues/20031 * Author: FabienChaynes (Fabien Chaynes) * Status: Open * Priority: Normal * ruby -v: ruby 3.2.2 (2023-03-30 revision e51014f9c0) [x86_64-linux] * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- Trying to match on some regexp using a greedy quantifier on any character (`.*`) and unions (`foo|bar`) uses a lot of memory if the string we want to match on is big. # Reproduction code ```ruby puts RUBY_DESCRIPTION unless File.exist?("/tmp/fake_email.eml") content = "Accept-Language: fr-FR, en-US#{"0" * 50_000_000}" File.write("/tmp/fake_email.eml", content) end content = File.read("/tmp/fake_email.eml") def print_size(context, sike_kb) puts "#{context}: #{(sike_kb / 1024.0).round(1)} MB" end print_size("baseline", `ps ax -o pid,rss | grep -E "^[[:space:]]*#{$$}"`.strip.split.map(&:to_i).last) print_size("content", content.bytesize / 1024) REGEXP_UNION = Regexp.union( "Accept-Language:", "Thread-Topic:", ).freeze reg = /.*#{REGEXP_UNION}/ p reg GC.start print_size("before match?", `ps ax -o pid,rss | grep -E "^[[:space:]]*#{$$}"`.strip.split.map(&:to_i).last) allocated = GC.stat(:total_allocated_objects) p content.match(reg) p GC.stat(:total_allocated_objects) - allocated GC.start print_size("after match?", `ps ax -o pid,rss | grep -E "^[[:space:]]*#{$$}"`.strip.split.map(&:to_i).last) p "---" ``` Output: ```bash $ /usr/bin/time -v ruby full_repro.rb ruby 3.2.2 (2023-03-30 revision e51014f9c0) [x86_64-linux] baseline: 71.3 MB content: 47.7 MB /.*(?-mix:Accept\-Language:|Thread\-Topic:)/ before match?: 71.3 MB #<MatchData "Accept-Language:"> 14 after match?: 71.6 MB "---" Command being timed: "ruby full_repro.rb" User time (seconds): 1.15 System time (seconds): 0.74 Percent of CPU this job got: 100% Elapsed (wall clock) time (h:mm:ss or m:ss): 0:01.89 Average shared text size (kbytes): 0 Average unshared data size (kbytes): 0 Average stack size (kbytes): 0 Average total size (kbytes): 0 Maximum resident set size (kbytes): 2423108 Average resident set size (kbytes): 0 Major (requiring I/O) page faults: 0 Minor (reclaiming a frame) page faults: 609575 Voluntary context switches: 52 Involuntary context switches: 12 Swaps: 0 File system inputs: 0 File system outputs: 0 Socket messages sent: 0 Socket messages received: 0 Signals delivered: 0 Page size (bytes): 4096 Exit status: 0 ``` strace: ```bash $ sudo strace -p 588834 strace: Process 588834 attached [...] mmap(NULL, 249856, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8e92dd3000 mremap(0x7f8e92dd3000, 249856, 495616, MREMAP_MAYMOVE) = 0x7f8e92d5a000 mremap(0x7f8e92d5a000, 495616, 987136, MREMAP_MAYMOVE) = 0x7f8e92c69000 mremap(0x7f8e92c69000, 987136, 1970176, MREMAP_MAYMOVE) = 0x7f8e92a88000 mremap(0x7f8e92a88000, 1970176, 3936256, MREMAP_MAYMOVE) = 0x7f8e926c7000 mremap(0x7f8e926c7000, 3936256, 7868416, MREMAP_MAYMOVE) = 0x7f8e91f46000 mremap(0x7f8e91f46000, 7868416, 15732736, MREMAP_MAYMOVE) = 0x7f8e91045000 mremap(0x7f8e91045000, 15732736, 31461376, MREMAP_MAYMOVE) = 0x7f8e8a8af000 mremap(0x7f8e8a8af000, 31461376, 62918656, MREMAP_MAYMOVE) = 0x7f8e86cae000 mremap(0x7f8e86cae000, 62918656, 125833216, MREMAP_MAYMOVE) = 0x7f8e7f4ad000 mremap(0x7f8e7f4ad000, 125833216, 251662336, MREMAP_MAYMOVE) = 0x7f8e704ac000 mremap(0x7f8e704ac000, 251662336, 503320576, MREMAP_MAYMOVE) = 0x7f8e524ab000 mremap(0x7f8e524ab000, 503320576, 1006637056, MREMAP_MAYMOVE) = 0x7f8e164aa000 mremap(0x7f8e164aa000, 1006637056, 2013270016, MREMAP_MAYMOVE) = 0x7f8d9e4a9000 mremap(0x7f8d9e4a9000, 2013270016, 4026535936, MREMAP_MAYMOVE) = 0x7f8cae4a8000 mmap(NULL, 12500992, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8e92224000 munmap(0x7f8cae4a8000, 4026535936) = 0 munmap(0x7f8e92224000, 12500992) = 0 writev(1, [{iov_base="#<MatchData \"Accept-Language:\">", iov_len=31}, {iov_base="\n", iov_len=1}], 2) = 32 [...] ``` We can see that the memory retained by Ruby is low (71.6 MB), but `content.match(reg)` used 2_423_108 kbytes (~2.4 GB) in the regex engine. # Findings To reproduce we need: - a greedy quantifier on any character (`.*`) - a union with at least two members (`foo|bar`). More members won't increase the memory consumption further - to perform the match on a long string The memory seems to increase linearly against the string size: |String size |Memory consumed | |--|--| | 11.9 MB | 629_988 kbytes | | 23.8 MB | 1_235_976 kbytes | | 47.7 MB | 2_423_076 kbytes | I was able to reproduce it on old Ruby versions as well. @byroot helped me to put all this together and according to his investigation the memory allocation would be coming from `regexec.c:4100` (https://github.com/ruby/ruby/blob/85092ecd6f5c4d12d0cb1d6dfa7040337a4f558b/…) ``` size_t match_cache_buf_length = (num_match_cache_points >> 3) + (num_match_cache_points & 7 ? 1 : 0) + 1; uint8_t* match_cache_buf = (uint8_t*)xmalloc(match_cache_buf_length * sizeof(uint8_t)); ``` It seems surprising to use that much memory compared to the string size. Is it expected? -- https://bugs.ruby-lang.org/

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[ruby-core:115459] [Ruby master Bug#20017] 3.3.0dev `rb_thread_profile_frames` crashes when `RUBY_MN_THREADS=1`
by byroot (Jean Boussier) 20 Dec '23

20 Dec '23

Issue #20017 has been reported by byroot (Jean Boussier). ---------------------------------------- Bug #20017: 3.3.0dev `rb_thread_profile_frames` crashes when `RUBY_MN_THREADS=1` https://bugs.ruby-lang.org/issues/20017 * Author: byroot (Jean Boussier) * Status: Open * Priority: Normal * Assignee: ko1 (Koichi Sasada) * ruby -v: ruby 3.3.0dev (2023-11-19T03:01:05Z shopify 9aee12cc28) +MN [x86_64-linux] * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- I discovered this while running our internal CI with MaNy enabled, our application crash when trying to profile with StackProf (with postponed jobs disabled): ``` [BUG] Segmentation fault at 0x0000000000000010 ruby 3.3.0dev (2023-11-19T03:01:05Z shopify 9aee12cc28) +MN [x86_64-linux] -- C level backtrace information ------------------------------------------- /usr/local/ruby/bin/ruby(rb_print_backtrace+0x14) [0x55c8f16333e1] /tmp/ruby-build/ruby-3.3.0-9aee12cc28cbca40306784e54e38558688caa9f7/vm_dump.c:812 /usr/local/ruby/bin/ruby(rb_vm_bugreport) /tmp/ruby-build/ruby-3.3.0-9aee12cc28cbca40306784e54e38558688caa9f7/vm_dump.c:1143 /usr/local/ruby/bin/ruby(rb_bug_for_fatal_signal+0xfc) [0x55c8f17e559c] /tmp/ruby-build/ruby-3.3.0-9aee12cc28cbca40306784e54e38558688caa9f7/error.c:1065 /usr/local/ruby/bin/ruby(sigsegv+0x4d) [0x55c8f158091d] /tmp/ruby-build/ruby-3.3.0-9aee12cc28cbca40306784e54e38558688caa9f7/signal.c:920 /lib/x86_64-linux-gnu/libc.so.6(0x7ff3db333520) [0x7ff3db333520] /usr/local/ruby/bin/ruby(thread_profile_frames+0x10) [0x55c8f162efd0] /tmp/ruby-build/ruby-3.3.0-9aee12cc28cbca40306784e54e38558688caa9f7/vm_backtrace.c:1587 /tmp/bundle/ruby/3.3.0+0/gems/stackprof-0.2.25/lib/stackprof/stackprof.so(stackprof_buffer_sample+0x28) [0x7ff3b7d2435c] /tmp/bundle/ruby/3.3.0+0/gems/stackprof-0.2.25/ext/stackprof/stackprof.c:622 /tmp/bundle/ruby/3.3.0+0/gems/stackprof-0.2.25/lib/stackprof/stackprof.so(stackprof_buffer_sample) /tmp/bundle/ruby/3.3.0+0/gems/stackprof-0.2.25/ext/stackprof/stackprof.c:604 /tmp/bundle/ruby/3.3.0+0/gems/stackprof-0.2.25/lib/stackprof/stackprof.so(stackprof_buffer_sample) (null):0 /tmp/bundle/ruby/3.3.0+0/gems/stackprof-0.2.25/lib/stackprof/stackprof.so(stackprof_signal_handler+0x5) [0x7ff3b7d24545] /tmp/bundle/ruby/3.3.0+0/gems/stackprof-0.2.25/ext/stackprof/stackprof.c:767 /tmp/bundle/ruby/3.3.0+0/gems/stackprof-0.2.25/lib/stackprof/stackprof.so(stackprof_signal_handler) /tmp/bundle/ruby/3.3.0+0/gems/stackprof-0.2.25/ext/stackprof/stackprof.c:722 /lib/x86_64-linux-gnu/libc.so.6(0x7ff3db333520) [0x7ff3db333520] /lib/x86_64-linux-gnu/libc.so.6(pthread_cond_wait+0x24a) [0x7ff3db384a7a] /usr/local/ruby/bin/ruby(rb_native_cond_wait+0xb) [0x55c8f15c8cbb] /tmp/ruby-build/ruby-3.3.0-9aee12cc28cbca40306784e54e38558688caa9f7/thread_pthread.c:214 /usr/local/ruby/bin/ruby(ractor_sched_deq) /tmp/ruby-build/ruby-3.3.0-9aee12cc28cbca40306784e54e38558688caa9f7/thread_pthread.c:1230 /usr/local/ruby/bin/ruby(nt_start) /tmp/ruby-build/ruby-3.3.0-9aee12cc28cbca40306784e54e38558688caa9f7/thread_pthread.c:2209 ``` For additional context, as far as I know `rb_thread_profile_frames` isn't officially async signal safe, but it happens to be since 3.0 for the interpreter, and 3.3 for YJIT, so StackProf tries not to use postponed jobs for profiling when it can as it leads to much more accurate profiling results. Ref: https://github.com/tmm1/stackprof/issues/221 -- https://bugs.ruby-lang.org/

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[ruby-core:115458] [Ruby master Bug#20016] 3.3.0dev `rb_postponed_job_register_one` crashes when `RUBY_MN_THREADS=1`
by byroot (Jean Boussier) 20 Dec '23

20 Dec '23

Issue #20016 has been reported by byroot (Jean Boussier). ---------------------------------------- Bug #20016: 3.3.0dev `rb_postponed_job_register_one` crashes when `RUBY_MN_THREADS=1` https://bugs.ruby-lang.org/issues/20016 * Author: byroot (Jean Boussier) * Status: Open * Priority: Normal * Assignee: ko1 (Koichi Sasada) * ruby -v: ruby 3.3.0dev (2023-11-22T17:01:13Z shopify c1fc1a00ea) +MN [x86_64-linux] * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- I discovered this while running our internal CI with MaNy enabled, our application crash when trying to profile with StackProf: ``` [BUG] Segmentation fault at 0x0000000000000020 ruby 3.3.0dev (2023-11-22T17:01:13Z shopify c1fc1a00ea) +MN [x86_64-linux] -- Machine register context ------------------------------------------------ RIP: 0x000055df5fe38489 RBP: 0x00007f517bc59000 RSP: 0x00007f5123f3c6d0 RAX: 0x0000000000000000 RBX: 0x00007f51596554e0 RCX: 0x00007f517bdb6b40 RDX: 0x0000000000000001 RDI: 0x00007f517bc59000 RSI: 0x0000000000000000 R8: 0x0000000000000000 R9: 0x00000000ffffffff R10: 0x0000000000000000 R11: 0x0000000000000246 R12: 0x0000000000000000 R13: 0x0000000000000000 R14: 0x0000000000001ea5 R15: 0x00007f517bc59104 EFL: 0x0000000000010202 -- C level backtrace information ------------------------------------------- /usr/local/ruby/bin/ruby(rb_print_backtrace+0x14) [0x55df5fe328e1] /tmp/ruby-build/ruby-3.3.0-c1fc1a00ea9633961153451d0e927db49c1b268d/vm_dump.c:812 /usr/local/ruby/bin/ruby(rb_vm_bugreport) /tmp/ruby-build/ruby-3.3.0-c1fc1a00ea9633961153451d0e927db49c1b268d/vm_dump.c:1143 /usr/local/ruby/bin/ruby(rb_bug_for_fatal_signal+0xfc) [0x55df5ffe509c] /tmp/ruby-build/ruby-3.3.0-c1fc1a00ea9633961153451d0e927db49c1b268d/error.c:1065 /usr/local/ruby/bin/ruby(sigsegv+0x4d) [0x55df5fd7f19d] /tmp/ruby-build/ruby-3.3.0-c1fc1a00ea9633961153451d0e927db49c1b268d/signal.c:920 /lib/x86_64-linux-gnu/libc.so.6(0x7f517c277520) [0x7f517c277520] /usr/local/ruby/bin/ruby(rbimpl_atomic_or+0x0) [0x55df5fe38489] /tmp/ruby-build/ruby-3.3.0-c1fc1a00ea9633961153451d0e927db49c1b268d/vm_trace.c:1691 /usr/local/ruby/bin/ruby(postponed_job_register) /tmp/ruby-build/ruby-3.3.0-c1fc1a00ea9633961153451d0e927db49c1b268d/vm_trace.c:1693 /usr/local/ruby/bin/ruby(postponed_job_register) /tmp/ruby-build/ruby-3.3.0-c1fc1a00ea9633961153451d0e927db49c1b268d/vm_trace.c:1675 /usr/local/ruby/bin/ruby(rb_postponed_job_register_one) /tmp/ruby-build/ruby-3.3.0-c1fc1a00ea9633961153451d0e927db49c1b268d/vm_trace.c:1746 /tmp/bundle/ruby/3.3.0+0/gems/stackprof-0.2.25/lib/stackprof/stackprof.so(stackprof_signal_handler+0x2d) [0x7f5159655434] /tmp/bundle/ruby/3.3.0+0/gems/stackprof-0.2.25/ext/stackprof/stackprof.c:763 /tmp/bundle/ruby/3.3.0+0/gems/stackprof-0.2.25/lib/stackprof/stackprof.so(stackprof_signal_handler) /tmp/bundle/ruby/3.3.0+0/gems/stackprof-0.2.25/ext/stackprof/stackprof.c:722 /lib/x86_64-linux-gnu/libc.so.6(0x7f517c277520) [0x7f517c277520] /lib/x86_64-linux-gnu/libc.so.6(0x7f517c2c6117) [0x7f517c2c6117] /lib/x86_64-linux-gnu/libc.so.6(pthread_cond_wait+0x211) [0x7f517c2c8a41] /usr/local/ruby/bin/ruby(rb_native_cond_wait+0xb) [0x55df5fdc75fb] /tmp/ruby-build/ruby-3.3.0-c1fc1a00ea9633961153451d0e927db49c1b268d/thread_pthread.c:214 /usr/local/ruby/bin/ruby(ractor_sched_deq) /tmp/ruby-build/ruby-3.3.0-c1fc1a00ea9633961153451d0e927db49c1b268d/thread_pthread.c:1230 /usr/local/ruby/bin/ruby(nt_start) /tmp/ruby-build/ruby-3.3.0-c1fc1a00ea9633961153451d0e927db49c1b268d/thread_pthread.c:2209 /lib/x86_64-linux-gnu/libc.so.6(0x7f517c2c9ac3) [0x7f517c2c9ac3] ``` Ref: https://github.com/tmm1/stackprof/issues/221 -- https://bugs.ruby-lang.org/

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[ruby-core:112262] [Ruby master Feature#19422] Make `--enabled-shared` mandatory on macOS
by nobu (Nobuyoshi Nakada) 20 Dec '23

20 Dec '23

Issue #19422 has been reported by nobu (Nobuyoshi Nakada). ---------------------------------------- Feature #19422: Make `--enabled-shared` mandatory on macOS https://bugs.ruby-lang.org/issues/19422 * Author: nobu (Nobuyoshi Nakada) * Status: Open * Priority: Normal ---------------------------------------- From the troubles around linker on macOS, I propose `--enable-shared` option mandatory on macOS. This patch enables the option by default, and abort if `--disable-shared` option is given explicitly. ```diff diff --git i/configure.ac w/configure.ac index 7db2ab5257c..923ac7d1199 100644 --- i/configure.ac +++ w/configure.ac @@ -504,6 +504,11 @@ AS_CASE(["$target_os"], rb_cv_binary_elf=no : ${enable_shared=yes} ], +[darwin*], [ + AS_IF([test "${enable_shared=yes}" = no], [ + AC_MSG_ERROR([--disable-shared is not supported on this platform]) + ]) +], [hiuxmpp*], [AC_DEFINE(__HIUX_MPP__)]) # by TOYODA Eizi <toyoda(a)npd.kishou.go.jp> AC_PROG_LN_S @@ -3055,14 +3060,7 @@ AC_SUBST(EXTOBJS) : ${LDFLAGS=""} : ${LIBPATHENV=DYLD_FALLBACK_LIBRARY_PATH} : ${PRELOADENV=DYLD_INSERT_LIBRARIES} - AS_IF([test x"$enable_shared" = xyes], [ - # Resolve symbols from libruby.dylib when --enable-shared - EXTDLDFLAGS='$(LIBRUBYARG_SHARED)' - ], [test "x$EXTSTATIC" = x], [ - # When building exts as bundles, a mach-o bundle needs to know its loader - # program to bind symbols from the ruby executable - EXTDLDFLAGS="-bundle_loader '\$(BUILTRUBY)'" - ]) + EXTDLDFLAGS='$(LIBRUBYARG_SHARED)' rb_cv_dlopen=yes], [aix*], [ : ${LDSHARED='$(CC)'} AS_IF([test "$GCC" = yes], [ @@ -3356,10 +3354,6 @@ AS_IF([test x"$cross_compiling" = xyes], [ AC_SUBST(XRUBY_RUBYLIBDIR) AC_SUBST(XRUBY_RUBYHDRDIR) PREP='$(arch)-fake.rb' - AS_CASE(["$enable_shared:$EXTSTATIC:$target_os"], [no::darwin*], [ - # darwin target requires miniruby for linking ext bundles - PREP="$PREP"' miniruby$(EXEEXT)' - ]) RUNRUBY_COMMAND='$(MINIRUBY) -I`cd $(srcdir)/lib; pwd`' RUNRUBY='$(RUNRUBY_COMMAND)' XRUBY='$(MINIRUBY)' ``` -- https://bugs.ruby-lang.org/

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