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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65625 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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The decrements overflow and these variables remain ~0 when leaving the
while loops. They are not fatal by accident, but better replace with
ordinal for loops.
See also: https://travis-ci.org/ruby/ruby/jobs/452218871#L3246
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65624 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65623 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* vm_core.h (rb_thread_struct): introduce new fields `invoke_type`
and `invoke_arg`.
There are two types threads: invoking proc (normal Ruby thread
created by `Thread.new do ... end`) and invoking func, created
by C-API. `invoke_type` shows the types.
* thread.c (thread_do_start): copy `invoke_arg.proc.args` contents
from Array to ALLOCA stack memory if args length is enough small (<8).
We don't need to keep Array and don't need to cancel using transient heap.
* vm.c (thread_mark): For func invoking threads, they can pass (void *)
parameter (rb_thread_t::invoke_arg::func::arg). However, a rubyspec test
(thread_spec.c) passes an Array object and it expect to mark it.
Clealy it is out of scope (misuse of `rb_thread_create` C-API). However,
I'm not sure someone else has such kind of misunderstanding.
So now we mark conservatively this (void *) arg with rb_gc_mark_maybe.
This misuse is found by this error log.
http://ci.rvm.jp/results/trunk-theap-asserts@silicon-docker/1448164
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65622 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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These functions are used in strcasehash, which is used to store encoding
names. Encoding names often include hyphens (e.g. "UTF-8"), and
` '-' - 'A' ` is negative (cannot express in unsigned int).
Don't be tricky, just do what to do.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65621 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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to avoid random failures like
https://app.wercker.com/ruby/ruby/runs/mjit-test1/5be394b818310600284f2b50?step=5be394f1591ca800079b1329
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65620 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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This becomes necesary if sockets become non-blocking by
default <https://bugs.ruby-lang.org/issues/14968>; but it's
always been possible to make sockets non-blocking anyways.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65619 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* rational.c (read_num): return the exponent instead of the
divisor, to get rid of huge bignums.
* rational.c (parse_rat): subtract exponents instead of reduction
of powers.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65618 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* compile.c (get_local_var_idx, get_dyna_var_idx): raise a compile
error which is useful than rb_bug, when ID is not found.
* compile.c (iseq_set_sequence): ditto when IC index overflow,
with dumping generated code.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65617 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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This `i += h;` overflows. Don't know the intention of the
operation, so just suppress UBSAN.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65616 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65615 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* compile.c (iseq_calc_param_size): use UNREACHABLE than rb_bug,
at where never reachable.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65614 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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maybe after bundler introduction to this repository, we randomly hit
errors like:
http://ci.rvm.jp/results/trunk-gc-asserts@silicon-docker/1447918
As we would require minitest in this repository anyway, it should be
fine to suppress the error there.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65613 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65612 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65611 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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Dir.each on an internal method encapsulated on a private class
`Entry_#entry`, having no '.' neither '..' entries would make
now superfluous a chained reject filtering.
This change can improve the performance of these FileUtils
methods when the provided path covers thousands of files or
directories:
- chmod_R
- chown_R
- remove_entry
- remove_entry_secure
- rm_r
- remove_dir
- copy_entry
Related: Feature #13896 https://bugs.ruby-lang.org/issues/13896
[Feature #14109][Fix GH-1754]
Co-Authored-By: esparta <esparta@gmail.com>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65610 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65609 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65608 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65607 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65606 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65605 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65604 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65603 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65602 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65601 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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The instructions are just for optimization. To clarity the intention,
this change adds the prefix "opt_", like "opt_case_dispatch".
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65600 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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r65577 seems to have made MJIT_CC (MJIT_CC_COMMONA) become an absolute
path. So start_process doesn't need to find that from PATH by dln_find_exe_r.
This commit is motivated by the msys2 AppVeyor CI failure:
https://ci.appveyor.com/project/ruby/ruby/builds/20084104/job/1pg15os4dtttyl0q
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65599 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(lldb) target create "./miniruby"
Current executable set to './miniruby' (x86_64).
(lldb) settings set -- target.run-args "-e0"
(lldb) run
Process 97005 launched: './miniruby' (x86_64)
./miniruby(rb_print_backtrace+0x15) [0x10024f7d5] vm_dump.c:715
./miniruby(rb_vm_get_sourceline+0x85) [0x10024c4f5] vm_backtrace.c:43
./miniruby(rb_vm_make_binding+0x146) [0x100236976] vm.c:941
./miniruby(Init_VM+0x592) [0x100249f02] vm.c:3091
./miniruby(rb_call_inits+0xc2) [0x1000c5a72] inits.c:58
./miniruby(ruby_setup+0xcb) [0x100098c6b] eval.c:74
./miniruby(ruby_init+0x9) [0x100098c99] eval.c:91
./miniruby(main+0x4d) [0x10025ddbd] addr2line.c:246
Process 97005 stopped
* thread #1: tid = 0x639bb, 0x000000010024c4f5 miniruby`rb_vm_get_sourceline(cfp=<unavailable>) + 133 at vm_backtrace.c:44, queue = 'com.apple.main-thread', stop reason = EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)
frame #0: 0x000000010024c4f5 miniruby`rb_vm_get_sourceline(cfp=<unavailable>) + 133 at vm_backtrace.c:44
41 else {
42 /* SDR() is not possible; that causes infinite loop. */
43 rb_print_backtrace();
-> 44 __builtin_trap();
45 }
46 #endif
47 return rb_iseq_line_no(iseq, pos);
(lldb)
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65598 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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See r65595
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65597 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65596 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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In these expressions `1` is of type `signed int` (cf: ISO/IEC
9899:1990 section 6.1.3.2). The variable (e.g. `num`) is of type
`rb_num_t`, which is in fact `unsigned long`. These two expressions
then exercises the "usual arithmetic conversions" (cf: ISO/IEC
9899:1990 section 6.2.1.5) and both eventually become `unsigned long`.
The two unsigned expressions are then subtracted to generate another
unsigned integer expression (cf: ISO/IEC 9899:1990 section 6.3.6).
This is where integer overflows can occur. OTOH the left hand side of
the assignments are `rb_snum_t` which is `signed long`. The
assignments exercise the "implicit conversion" of "an unsigned integer
is converted to its corresponding signed integer" case (cf: ISO/IEC
9899:1990 section 6.2.1.2), which is "implementation-defined" (read:
not portable).
Casts are the proper way to avoid this problem. Because all
expressions are converted to some integer types before any binary
operations are performed, the assignments now have fully defined
behaviour. These values can never exceed LONG_MAX so the casts must
not lose any information.
See also: https://travis-ci.org/ruby/ruby/jobs/451726874#L4357
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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on macOS.
https://travis-ci.org/ruby/ruby/jobs/451709313
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65594 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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Unaligned word access warnings generated by UBSAN are often
treated well already, depending on this macro.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65593 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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Looking at the lines right above, it is clear than a blue sky
that we cannot assume `p` to be aligned at all when
UNALIGNED_WORD_ACCESS is true. It is a wrong idea to use
__builtin_assume_aligned for that situation.
See also: https://travis-ci.org/ruby/ruby/jobs/451710732#L2007
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65592 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65591 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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See also: https://travis-ci.org/ruby/ruby/jobs/451710726#L1941
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65590 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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Integer overflow for unsigned types are fully defined in C. They
are not always problematic (but not always OK). These functions
in this changeset intentionally utilizes that behaviour.
Blacklist from UBSAN checks for better output.
See also: https://travis-ci.org/ruby/ruby/jobs/451624829
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65589 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65588 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* Makefile.in (mjit_build_dir.so): separate MJIT_BUILD_DIR to
eliminate the feature for test-all after installation.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65587 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65586 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65585 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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It may cause an access to uninitialized variables.
The call to ppoll will set the `revents` field, but ppoll is not always
called because it is in the guard `!RUBY_VM_INTERRUPTED(th->ec)`.
This issue was found by Coverity Scan.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65584 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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[Bug #14219]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65583 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65577 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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See also: https://travis-ci.org/ruby/ruby/jobs/451299690
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65576 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65575 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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The only usage of rb_fiber_reset_root_local_storage() is from
ruby_vm_destruct(), where the object space is already terminated.
This `th->self` is not alive. Why not just use `th` itself.
See also: https://travis-ci.org/ruby/ruby/jobs/451294954
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65574 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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These APIs are much like <valgrind/memcheck.h>. Use them to
fine-grain annotate the usage of our memory.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65573 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65572 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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I'm planning to use _one later, but it may be doubly registered by
switching `stop_worker_p` now and so we should not use _one for now.
Otherwise stale job may reject new job registration and
copy_cache_from_main_thread may wait forever.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65571 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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