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Re: Emacs 22.1 reproducible crash
From: |
YAMAMOTO Mitsuharu |
Subject: |
Re: Emacs 22.1 reproducible crash |
Date: |
Wed, 08 Aug 2007 13:30:53 +0900 |
User-agent: |
Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.8 (Shijō) APEL/10.6 Emacs/22.1.50 (sparc-sun-solaris2.8) MULE/5.0 (SAKAKI) |
>>>>> On Tue, 07 Aug 2007 23:31:12 -0400, Stefan Monnier <address@hidden> said:
>> + int
>> + posix_memalign (memptr, alignment, size)
>> + __ptr_t *memptr;
>> + __malloc_size_t alignment;
>> + __malloc_size_t size;
>> + {
>> + __ptr_t mem;
>> +
>> + if (alignment % sizeof (__ptr_t) != 0
>> + || (alignment & (alignment - 1)) != 0)
>> + return EINVAL;
>> +
>> + mem = memalign (alignment, size);
>> + if (mem == NULL)
>> + return ENOMEM;
>> +
>> + *memptr = mem;
>> +
>> + return 0;
>> + }
> Can the result be freed by passing it to `free'?
> That's a very important part of the spec.
Yes. The function `memalign', which is also implemented in gmalloc.c,
records the original return value of `malloc' in the linear list
starting from `_aligned_blocks', and `free' looks through it first.
YAMAMOTO Mitsuharu
address@hidden
- Re: Emacs 22.1 reproducible crash, YAMAMOTO Mitsuharu, 2007/08/07
- Re: Emacs 22.1 reproducible crash, Gardner Bell, 2007/08/07
- Re: Emacs 22.1 reproducible crash, Giorgos Keramidas, 2007/08/08
- Re: Emacs 22.1 reproducible crash, Giorgos Keramidas, 2007/08/08
- Re: Emacs 22.1 reproducible crash, Jan Djärv, 2007/08/08
- Re: Emacs 22.1 reproducible crash, Giorgos Keramidas, 2007/08/08
- Re: Emacs 22.1 reproducible crash, Gardner Bell, 2007/08/09