abcad36bae
string.c (memsearch_swar): fixed a buffer overflow
2024-02-09 19:09:01 +09:00
868aeaf48c
string.c (memsearch_swar): fixed a buffer overflow
2024-02-09 18:52:44 +09:00
874f1e0138
backtrace.c (copy_location): rename some function and arguments
2024-02-08 23:41:22 +09:00
432caf0670
backtrace.c (pack_backtrace): refactor the function that called once
2024-02-08 23:22:48 +09:00
60919807e5
backtrace.c (each_backtrace): make return type to size_t
2024-02-07 17:34:33 +09:00
0a11215452
backtrace.c (packed_backtrace): avoid calling each_backtrace() twice
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Since the length of the backtrace is at most `ciidx + 1` we can avoid
the first call of each_backtrace().
2024-02-07 17:32:58 +09:00
b67cea4442
backtrace.c (pack_backtrace_i): avoid infinite loop; ref #6161
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When irep->refcnt reaches UINT16_MAX, mrb_irep_incref() raises
exception but the function pack_backtrace_i() is called from
mrb_exc_raise() thus causes the infinite loop problem. So this is a
hack-ish workaround by making irep reference to NULL if refcnt reaches
the maximum count. Probably we will address this issue again to make it
better.
2024-02-07 17:30:11 +09:00
b8e4c4b6ba
Merge pull request #6166 from dearblue/mrb_heap_page
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Stop pseudo flexible array in `mrb_heap_page`
2024-02-05 21:45:04 +09:00
32fb0c04ee
Merge pull request #6165 from dearblue/RVALUE
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Reduce `RVALUE` related pointer casts.
2024-02-05 21:42:51 +09:00
8f14785f10
Stop pseudo flexible array in mrb_heap_page
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For reference, the flexible array was introduced by commit 3ab2f9371e#2997 ).
Subsequently changed for compatibility with C++ by commit 24939723d7#5596 ).
2024-02-04 21:55:54 +09:00
84fbe63457
Change the end parameter of obj_free() to a boolean type
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The caller is a boolean value from the first.
2024-02-04 21:55:54 +09:00
dde5fe3a60
Reduce RVALUE related pointer casts.
2024-02-04 21:55:53 +09:00
f04a729dc9
gc.c (obj_free): check if irep is NULL before mrb_irep_decref(); #6161
2024-02-04 17:06:05 +09:00
2f63b49542
backtrace.c: use mrb_irep references instead of struct RProc
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To reduce GC burden (no mark needed). We use `mrb_irep_incref()` and
`mrb_irep_decref()` instead to track irep memory usage; ref #6161
2024-02-04 16:48:42 +09:00
4dfadb4f9f
Merge pull request #6159 from dearblue/debug/irep-free
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Allow to detect use-after-free after `mrb_irep_free()` for debugging
2024-02-04 16:26:03 +09:00
0abc36f761
Merge pull request #6161 from dearblue/backtrace
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Fixed use-after-free by backtrace object
2024-02-03 23:39:58 +09:00
08c422c7ee
numeric.c (cmpnum): support fixnum cmp bignum; fix #6163
2024-02-02 14:18:57 +09:00
6e09555749
Merge pull request #6150 from dearblue/itself
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Introduce `mrb_obj_itself()`
2024-02-01 16:15:42 +09:00
9543cfa7ee
Fixed use-after-free by backtrace object
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The `MRB_TT_BACKTRACE` object has been added for the purpose.
Previously, "use-after-free" could occur because the reference count in `backtrace_location::irep` was not incremented.
fixed #6160
2024-01-31 22:17:16 +09:00
cac698fe88
string.c (memsearch_swar): changed the function name
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For your information, SWAR stands for SIMD within a register.
2024-01-31 21:37:39 +09:00
f8527f0670
string.c (mrb_memsearch_ss): update a comment regarding alignment issue
2024-01-31 21:36:05 +09:00
d8144aef78
string.c: remove a comment regarding unsigned char*
2024-01-31 21:34:54 +09:00
363f795432
string.c: remove unnecessary type casts
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We don't need `unsigned` for string pointers.
2024-01-31 15:06:04 +09:00
e61a2881a7
string.c (mrb_memsearch_ss): fix potential buffer overflow; fix #6158
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- stop using `bigint*`
- stop integer pointer dereferences
- use `memcpy` to integer variables
- add reminder search for shorter patterns
2024-01-31 07:48:24 +09:00
219cfd63e1
string.c (mrb_memsearch_ss): update integer prefixes (LLU -> ULL)
2024-01-31 07:42:52 +09:00
6ba65ea0f0
string.c (mrb_memsearch_ss): update comment
2024-01-31 01:54:37 +09:00
44a5882bc2
string.c (mrb_memsearch_ss): remove useless alignment adjustment
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Ref #6158
2024-01-31 01:27:10 +09:00
be5448fd16
string.c (mrb_memsearch): refactor m==1 (use memchr) case
2024-01-31 01:17:12 +09:00
d8e1aed646
string.c (search_nonascii): need not to check n>3 on 32bit platforms
2024-01-30 12:35:56 +09:00
60dd6b5586
Allow to detect use-after-free after mrb_irep_free() for debugging
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Write invalid value to `irep` if `MRB_DEBUG` is defined by `MRuby::Build#enable_debug`.
2024-01-29 21:32:04 +09:00
e859b430cc
fixup! string.c (search_nonascii): add faster search using SSE2
2024-01-27 11:59:29 +09:00
dee1ded7b5
string.c (mrb_memsearch_ss): support bigendians
2024-01-27 06:23:16 +09:00
06d9a54760
string.c (mrb_memsearch): remove simple search and quick search
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Since mrb_memsearch_ss() is fast enough for most of the cases, we try to
simplify the code.
2024-01-27 06:22:55 +09:00
2943ca2685
string.c (mrb_memsearch_ss): faster integer-wise substring search
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The function is based on @WojciechMula's code from the repository
https://github.com/WojciechMula/sse4-strstr.git Since it's licensed
under 2 clause BSD, we updated LEGAL file too.
2024-01-27 06:16:33 +09:00
08cd281200
string.c (search_nonascii): skip alignment adjustment for some CPUs
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Some CPUs (e.g. x86) allow unaligned access to the memory.
2024-01-26 08:22:33 +09:00
68ab95ea57
string.c (mrb_memsearch): take char* instead of void*
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Avoid useless `void*`.
2024-01-25 22:32:31 +09:00
cf0cd6785c
string.c: rename MRB_QS_SHORT_STRING_LENGTH
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The new name is MRB_SEARCH_SHORT_STRING_LENGTH since it's no longer used
in the mrb_memsearch_qs(). FYI, 'qs' stands for 'quick search'.
2024-01-23 23:28:45 +09:00
fb2ebcde7c
string.c (search_nonascii): add faster search using SSE2
2024-01-23 23:28:45 +09:00
4108b85c62
string.c (search_nonascii): faster search using integer match
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If you define `SIMPLE_SEARCH_NONASCII`, you can use old, naive
implementation of search_nonascii(). You may want to use the old one for
code size constraint for example.
2024-01-23 23:28:45 +09:00
bf2db1ed2b
Check mrb_bigint_p() before mrb_integer()
2024-01-21 10:59:06 +09:00
3111990089
Introduce mrb_obj_itself()
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Some method definitions were changed to use this function.
2024-01-20 22:07:29 +09:00
772f13520c
Fixed buffer overflow in mrb_memsearch()
2024-01-20 09:44:47 +09:00
f13101124c
string.c: add cast to remove warnings
2024-01-19 18:24:34 +09:00
69cf074778
string.c (mrb_memsearch): move simple search from mrb_memsearch_qs()
2024-01-19 15:21:43 +09:00
57fd0edaa7
mruby.h: rename ASCII flag to SINGLE_BYTE
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This flag means all the characters in the string can be represented by a
single byte, i.e., the string does not contain any multi-byte character.
Those characters are likely ASCII characters, but may be a part of broken
UTF-8 sequence, so the term 'ASCII' is not sufficient.
2024-01-18 22:50:39 +09:00
fb8bc1954b
string.c: improve performance of chars2bytes/bytes2chars; ref #6143
2024-01-11 18:23:50 +09:00
f646228dbe
string.c (str_index_str_by_char): simplify using str_index_str()
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Instead of its own version of quick search, now we use str_index_str()
and adjust character position. This change makes searching 4 times
faster in some cases; ref #6143
2024-01-11 12:23:06 +09:00
e42f3b36f9
string.c (chars2bytes): simplify the condition to detect break
2024-01-11 11:49:49 +09:00
787439455c
string.c: remove the macro BYTES_ALIGN_CHECK which is no longer used
2024-01-10 17:31:04 +09:00
c2f148e15d
string.c (mrb_memsearch_qs): reduce the scope of local variables
2024-01-10 16:21:39 +09:00
Yukihiro "Matz" Matsumoto