`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.
commit 2d7d545c4c4bfce7fdcbcbe9baaeb437915742f0
Merge: 625a1249 b178914b
Author: Yukihiro "Matz" Matsumoto <matz@ruby.or.jp>
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 b178914b11
Author: dearblue <dearblue@users.noreply.github.com>
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 52e3d5d858
Author: dearblue <dearblue@users.noreply.github.com>
Date: Sat Jan 19 21:55:36 2019 +0900
Fix memory leak for temporary symbols when out of memory
commit 4c5499b88e
Author: dearblue <dearblue@users.noreply.github.com>
Date: Sun Jan 20 11:42:07 2019 +0900
Fix uninitialized pointer dereference for debug section
commit 8e993167de
Author: dearblue <dearblue@users.noreply.github.com>
Date: Sun Jan 20 11:41:09 2019 +0900
Fix memory leak for temporary filenames when out of memory
commit 8b422577e6
Author: dearblue <dearblue@users.noreply.github.com>
Date: Sun Jan 20 10:57:51 2019 +0900
Fix memory leak for irep when out of memory
commit 6b35ebf49a
Author: dearblue <dearblue@users.noreply.github.com>
Date: Sun Jan 20 10:55:50 2019 +0900
Fix uninitialized pointer dereference when do not finished initializing irep
commit 2531f2631e
Author: dearblue <dearblue@users.noreply.github.com>
Date: Sun Jan 20 10:48:15 2019 +0900
Fix NULL pointer dereference when do not finished initializing irep
commit e2d6896eba
Author: dearblue <dearblue@users.noreply.github.com>
Date: Sat Jan 19 12:54:19 2019 +0900
Fix memory leak for irep when out of memory by `mrb_proc_new()`
commit b6214ff8a0
Author: dearblue <dearblue@users.noreply.github.com>
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 19162dd6c1
Author: dearblue <dearblue@users.noreply.github.com>
Date: Sun Jan 20 02:15:07 2019 +0900
Fix memory leak for symbol string when out of memory in `kh_put()`
commit 15e67297ff
Author: dearblue <dearblue@users.noreply.github.com>
Date: Sun Jan 20 02:12:24 2019 +0900
Fix keep wrong symbol index when out of memory
commit 3f8e2b3752
Author: dearblue <dearblue@users.noreply.github.com>
Date: Sun Jan 20 02:08:13 2019 +0900
Fix keep wrong symbol capacity when out of memory
commit a3cfe755ab
Author: dearblue <dearblue@users.noreply.github.com>
Date: Sat Jan 19 10:11:37 2019 +0900
Fix NULL pointer dereference `mrb->c` by `mark_context()`
commit d9c7b6be6e
Author: dearblue <dearblue@users.noreply.github.com>
Date: Sun Jan 20 15:25:09 2019 +0900
Fix protect exception for print error message
commit 100642750e
Author: dearblue <dearblue@users.noreply.github.com>
Date: Sun Jan 20 11:59:02 2019 +0900
Protect exception for mruby core initialization
commit 7a0418304e
Author: dearblue <dearblue@users.noreply.github.com>
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 fef1c152ce
Author: dearblue <dearblue@users.noreply.github.com>
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 da7d7f881b
Author: dearblue <dearblue@users.noreply.github.com>
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()`
The addresses for packed inline symbols reference `mrb->symbuf` that
could be overridden by the later call of `mrb_sym2name_len`. Since
file names in call stack information are kept as symbols, keeping the
address in the C structures could cause problems like #4342.
This changes small incompatible changes in function prototypes:
* `mrb_parser_get_filename`: return value changed to `mrb_sym`.
* `mrb_debug_get_filename`: add `mrb_state*` as a first argument.
* `mrb_debug_get_line`: ditto.
I believe above functions are almost internal, and no third-party
mrbgem use them.
For short symbols with alpha numeric characters, `mrb_sym2name_len()`
returns the same buffer `mrb->symbuf`. Some occasion, we forget the fact
that the second call could overwrite the result of first call of the
function.
We have prepared the static function `sym2name()` which specifies the
buffer region for inline packed symbols and use the function in
`mrb_sym_to_s`.
Small symbols with all alphanumeric characters (<5) are packed in 32bit
symbol integer a la base64. This means those small symbols are not
listed in `Symbol.all_symbols`.
In 4174e02, we removed the symbol hash table from `mrb_state` but
`find_symbol` was too slow with linear search. My performance estimation
was wrong. So we implemented a new compact hash table for symbols.
Use linear search instead. Number of symbols is usually small (<1K), so
we don't need performance boost from hash tables. In our benchmark
measurement, hash tables consumes 790KB for `build/full-debug/mrbtest`.
on platforms with _etext and _edata, mruby can distinguish string literals so that it avoids memory allocation to copy them.
for example, on my Linux box (x86 32bit), memory consumed by mrbtest decreased from 8,168,203 to 8,078,848 (reduced 88KB).
Yukihiro "Matz" Matsumoto