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This reverts commit 9cdf439db52b66447b4e37c61179d54fad6c8f33.
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The POSIX `realloc` keep the original pointer untouched, so it can
easily leads to memory leakage. `mrb_realloc()` should handle those
bookkeeping, while `mrb_realloc_simple()` keeps the original `realloc`
behavior.
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Use simpler `mrb_get_argc()` and `mrb_get_arg1()` instead.
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C implementation used `mrb_funcall()` that bypassed many optimization.
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`mrb_get_arg1()` raises `ArgumentError` if the method does not receive one
argument.
And replaces all `mrb_get_args(mrb, "o", &arg)` by the new function.
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commit 2d7d545c4c4bfce7fdcbcbe9baaeb437915742f0
Merge: 625a1249 b178914b
Author: Yukihiro "Matz" Matsumoto <[email protected]>
Date: Fri Jun 5 14:35:13 2020 +0900
Merge branch 'fix-mrb_open-with-nomem' of https://github.com/dearblue/mruby into dearblue-fix-mrb_open-with-nomem
commit b178914b111dda79a8f36ec4eb3e9d37b76f982e
Author: dearblue <[email protected]>
Date: Sat Jan 19 22:22:44 2019 +0900
Fix invalid pointer free inside other heap's block
1. `e = mrb_obj_alloc(...)`
2. `e->stack = mrb->c->stack` (`mrb->c->stack` is anywhere in the range `stbase...stend`)
3. And raised exception by `mrb_malloc()`!
4. `mrb_free(e->stack)` by GC part (wrong free)
commit 52e3d5d8585daf86af3ed12db5ab0efefbc9b956
Author: dearblue <[email protected]>
Date: Sat Jan 19 21:55:36 2019 +0900
Fix memory leak for temporary symbols when out of memory
commit 4c5499b88e47cc6012ad7d7379cb6bc74c6a0b60
Author: dearblue <[email protected]>
Date: Sun Jan 20 11:42:07 2019 +0900
Fix uninitialized pointer dereference for debug section
commit 8e993167dec62a9709d6faacd517729ddcedf4f9
Author: dearblue <[email protected]>
Date: Sun Jan 20 11:41:09 2019 +0900
Fix memory leak for temporary filenames when out of memory
commit 8b422577e6eae68a28121b88421d937e8707b487
Author: dearblue <[email protected]>
Date: Sun Jan 20 10:57:51 2019 +0900
Fix memory leak for irep when out of memory
commit 6b35ebf49a0aa3edb6bbda770ed58681e9c2e6af
Author: dearblue <[email protected]>
Date: Sun Jan 20 10:55:50 2019 +0900
Fix uninitialized pointer dereference when do not finished initializing irep
commit 2531f2631e67e0462749618e2344c733a29238f0
Author: dearblue <[email protected]>
Date: Sun Jan 20 10:48:15 2019 +0900
Fix NULL pointer dereference when do not finished initializing irep
commit e2d6896ebad13694800af49c2625e106b8440ddf
Author: dearblue <[email protected]>
Date: Sat Jan 19 12:54:19 2019 +0900
Fix memory leak for irep when out of memory by `mrb_proc_new()`
commit b6214ff8a0a1c73bc9554e39053878ac50bb683f
Author: dearblue <[email protected]>
Date: Sat Jan 19 12:53:07 2019 +0900
Fix memory leak for `khash_t` in `kh_init_size()` when out of memory by `kh_alloc()`
commit 19162dd6c11f0093d0011e7cab83b8f9e84c2c07
Author: dearblue <[email protected]>
Date: Sun Jan 20 02:15:07 2019 +0900
Fix memory leak for symbol string when out of memory in `kh_put()`
commit 15e67297ff54bc14ef359d6d1e745d760a4a255a
Author: dearblue <[email protected]>
Date: Sun Jan 20 02:12:24 2019 +0900
Fix keep wrong symbol index when out of memory
commit 3f8e2b375244f5441e8d62efa13c6e6a9afecb14
Author: dearblue <[email protected]>
Date: Sun Jan 20 02:08:13 2019 +0900
Fix keep wrong symbol capacity when out of memory
commit a3cfe755ab3e758046c3f4e30938ac8d567ed046
Author: dearblue <[email protected]>
Date: Sat Jan 19 10:11:37 2019 +0900
Fix NULL pointer dereference `mrb->c` by `mark_context()`
commit d9c7b6be6eb54630b64eea5c35be241e551676e5
Author: dearblue <[email protected]>
Date: Sun Jan 20 15:25:09 2019 +0900
Fix protect exception for print error message
commit 100642750e4d549f2e8050f8d6cabdf8825d4495
Author: dearblue <[email protected]>
Date: Sun Jan 20 11:59:02 2019 +0900
Protect exception for mruby core initialization
commit 7a0418304ec70764fa215bef3599f5f735222075
Author: dearblue <[email protected]>
Date: Fri Jan 18 20:38:27 2019 +0900
Fix memory leak for string object when out of memory
The `mrb_str_pool()` function has a path to call `malloc()` twice.
If occurs `NoMemoryError` exception in second `malloc()`,
first `malloc()` pointer is not freed.
commit fef1c152ce4e52b9e4a34dc23aca5b02907ac639
Author: dearblue <[email protected]>
Date: Sat Jan 19 13:05:09 2019 +0900
Fix stack overflow when out of memory
As a result of this change, no backtrace information is set
for NoMemoryError (`mrb->nomem_err`).
Detailes:
When generating a backtrace, called `mrb_intern_lit()`,
`mrb_str_new_cstr()` and `mrb_obj_iv_set()` function with
`exc_debug_info()` function in `src/error.c`.
If a `NoMemoryError` exception occurs at this time,
the `exc_debug_info()` function will be called again,
and in the same way `NoMemoryError` exception raised will result
in an infinite loop to occurs stack overflow (and SIGSEGV).
commit da7d7f881bbbad9988a3a2b7bad8f2b72ff06bc6
Author: dearblue <[email protected]>
Date: Sun Jan 20 12:00:38 2019 +0900
Fix NULL pointer dereference `mrb->nomem_err` when not initialized
Add internal functions (not `static`):
* `mrb_raise_nomemory()`
* `mrb_core_init_abort()`
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shuujii/set-MRB_STR_ASCII-flag-to-some-stringize-methods
Set `MRB_STR_ASCII` flag to some stringize methods
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Formerly, `__send__(*args)` modified `args` with `Array#shift`.
This bug affects optcarrot.
This changeset avoids the array destruction by using
`args = args[1, len-1]`.
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### Example
```ruby
# example.rb
class A
def eql?(o)
p self.class
super
end
def hash
1
end
end
class B < A; end
h = {A.new => 1}
h[B.new]
```
#### Before this patch:
```console
$ bin/mruby example.rb
A
```
#### After this patch (same as Ruby)
```console
$ bin/mruby example.rb
B
```
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The `FLAG_BYTEORDER_NATIVE` and `FLAG_BYTEORDER_NONATIVE` are no longer
needed.
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`cmpnum` function may return `nil` on error.
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Since `mruby 2.0`, compiled bytecode no longer depends on the
endian of the machine.
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Which loads 16bit integer to the register. The instruction number should
be reorder on massive instruction refactoring. The instruction is added
for `mruby/c` which had performance issue with `OP_EXT`. With this
instruction, `mruby/c` VM can just raise errors on `OP_EXT` extension
instructions.
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`mrb_run` requires to push callinfo stack before calling, which is very
hard from outside of `vm.c`. So there should be virtually no correct
usage of the function, hence the cause of #4488. We removed it.
You can use `mrb_top_run(mrb, proc, self, 0)` instead of
`mrb_run(mrb, proc self)`.
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When using `mrb_any_to_s()` for debugging purposes, giving an object
whose class is `NULL` no longer causes a SIGSEGV and no crash.
This is achieved by making `mrb_class_name()` and `mrb_str_cat_cstr()`
null safe.
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- mrb_utf8len() - returns the size of a UTF-8 char (in bytes)
- mrb_utf8_strlen() - returns the length of a UTF-8 string (in char)
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When removing elements from an array, it is possible to avoid creating
an empty array.
Before this patch:
```c
mrb_ary_splice(mrb, ary, head, len, mrb_ary_new(mrb));
```
After this patch:
```c
mrb_ary_splice(mrb, ary, head, len, mrb_undef_value());
```
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The difference between `mrb_singleton_class` and `mrb_singleton_class_ptr`:
- `mrb_singleton_class_ptr` returns `struct RClass*`.
- `mrb_singleton_class_ptr` returns `NULL` on immediate values where
`mrb_singleton_class` raises exceptions.
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The tranpoline code in 6a0b68f8b was wrong; reverted.
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In ISO, those methods should raise `TypeError`, but the spec has been
changed. The change was discussed in [Feature#12979].
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Fix `MRB_TT_CPTR` object with `MRB_NAN_BOXING`
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Previously, if `MRB_NAN_BOXING` is defined, for example,
`mrb_cptr_value()` could not keep an odd address.
If it is `MRB_32BIT`, it can be embedded in `NaN` as it is.
If it is `MRB_64BIT`, some operations are shared with `MRB_WORD_BOXING`.
In this case, the MRB_API function `mrb_nan_boxing_cptr_value()` is
defined.
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In order to share the same operation with `mrb_float_to_str()`,
the internal structure is modified.
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Changed to understand `#`, `0`, `-`, ` ` and `+`.
Based on src/stdio/vfprintf.c in git://git.musl-libc.org/musl
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Based on src/stdio/vfprintf.c in git://git.musl-libc.org/musl
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If `mrb->jmp` is `NULL` and the function `mrb_funcall_with_block()` is
called, GC Arena is returned from the function with over-used.
- A normal (no global exodus) return will consume two GC Arena's.
- In the event of an exception, five GC Arena are consumed.
This patch reduces consumption in both cases to one.
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C++ is stricter in implicit type casting.
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Differences from the PR #4940:
* Use simple search for short strings only.
* "short" means `m+n` is shorter than `MRB_QS_SHORT_STRING_LENGTH`.
* The current default value for `MRB_QS_SHORT_STRING_LENGTH` is 2048.
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My cat stepped on the keyboard at the last moment before the commit.
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In top-level, `mid` is `NULL`. We used to ignore 'mid` update for `NULL`.
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