Commit Graph

28 Commits

Author SHA1 Message Date
tg
d8bc1cf161 thread-safety in the atexit function, justin case 2008-11-15 07:59:46 +00:00
tg
24a23d52d8 add plugs for thread-safety, requested by Jonathan Schleifer
example:
#define AALLOC_THREAD_ENTER(ap)	@synchronized(aalloc_guard) {
#define AALLOC_THREAD_LEAVE(ap)	}

notes:
• you must declare and define eventual guard objects yourself
• while there will not be any direct “return” calls inside the
  locked area, AALLOC_ABORT and AALLOC_WARN may be called
• AALLOC_RANDOM does not need to be thread-safe, but malloc
  and free should be; if “ap” is used for locking, all functions
  called must be thread-safe though
2008-11-15 07:51:53 +00:00
tg
32e1ecf5b3 enable passing of a hint how many pointers we’ll need to anew()
if 0, the default is used
2008-11-15 07:35:25 +00:00
tg
4e975aa081 make silently leaking a define for better integration into other programmes 2008-11-12 23:34:02 +00:00
tg
e0853c5908 it is, apparently, not portably guaranteed that realloc can deal with NULL 2008-11-12 19:23:09 +00:00
tg
d099b00b53 leave at least a working tree, with zero-penalty -DAALLOC_NO_COOKIES
XXX cookies are still broken?

cost for aalloc.c: data -= (4, 0, 4, 0); text += (1665, ?, 2115, 2217)
2008-11-12 07:36:19 +00:00
tg
079e86501a fix the cookie checks 2008-11-12 07:02:47 +00:00
tg
518d37b6bf same fuckup as in commitid 100491A793F1CA8D9CA, different place 2008-11-12 06:58:49 +00:00
tg
1cf58ac17e more silently 2008-11-12 06:44:04 +00:00
tg
bfec7328d4 allow mksh to leak silently 2008-11-12 06:42:22 +00:00
tg
28a0e28b1d adelete is supposed to be quiet on valid pointers 2008-11-12 06:38:08 +00:00
tg
3c07bc66f0 fix up the fuckage in afree() 2008-11-12 06:35:27 +00:00
tg
c6bcbc7bb0 improve error reporting 2008-11-12 06:14:26 +00:00
tg
364a7d116a mergo 2008-11-12 06:12:56 +00:00
tg
548c86147e more careful about disabling cookies 2008-11-12 06:10:51 +00:00
tg
4d62063eca and fix another set of CPPFLAGS for debugging 2008-11-12 06:05:54 +00:00
tg
42b789fc04 no %t and %z specifiers in shf_vfprintf ☹ so use %p and %l instead 2008-11-12 05:55:43 +00:00
tg
c113091e2d forgot to charge for the extra size in the abstraction 2008-11-12 05:46:45 +00:00
tg
b08956d6a7 raise AALLOC_INITSZ to be less expensive 2008-11-12 05:46:14 +00:00
tg
18b38ac5c7 if the address of bp changes, all backpointers must be adjusted as well ☹
pretty expensive
2008-11-12 05:45:28 +00:00
tg
7f17e3fc91 temporarily disable cookies for debugging 2008-11-12 05:40:23 +00:00
tg
b1673ff1a3 with other combinations too 2008-11-12 05:34:20 +00:00
tg
c3e17d8f0b get the debugging methods to build 2008-11-12 05:32:34 +00:00
tg
1211cf79cc • bp->last == bp->endp is allowed
• do the realloc properly
2008-11-12 05:27:01 +00:00
tg
4b456b1457 __CRAZY cleanliness: pointer arithmetic 2008-11-12 05:11:05 +00:00
tg
7cbc0b6fa2 this one I could have seen by myself if not for the late time of the day 2008-11-12 05:05:17 +00:00
tg
d15671f6f6 fix first batch of compile warnings, enable aalloc for mirbsd 2008-11-12 04:59:42 +00:00
tg
3c1e46ee4d prepare for aalloc.c, which I have just written myself, as an area-based
allocator using malloc and free, with mmap malloc and omalloc in mind,
not counterfeiting its security measures such as guard pages, and having
some of our own, e.g. XOR random cookies, optional mprotect, etc.

zero cost (for we have arc4random())
2008-11-12 04:55:19 +00:00