Commit Graph

1092 Commits

Author SHA1 Message Date
Jason Evans
56af64dc19 Fix a strict aliasing violation. 2015-08-12 16:38:20 -07:00
Jason Evans
828d919b5e Fix test for MinGW. 2015-08-12 15:21:07 -07:00
Jason Evans
6ed18cb348 Fix chunk_dalloc_arena() re: zeroing due to purge. 2015-08-12 15:20:34 -07:00
Jason Evans
694d0829c0 Update list of private symbols. 2015-08-12 13:03:43 -07:00
Jason Evans
38d8f50144 Fix assertion in test. 2015-08-12 12:06:38 -07:00
Jason Evans
e1ed698973 Remove obsolete entry. 2015-08-12 11:34:48 -07:00
Jason Evans
2662ba5449 Stop forcing --enable-munmap on MinGW.
This is no longer necessary because of the more general chunk
merge/split approach to dealing with map coalescing.
2015-08-12 11:10:42 -07:00
Jason Evans
03bf5b67be Try to decommit new chunks.
Always leave decommit disabled on non-Windows systems.
2015-08-12 10:26:54 -07:00
Jason Evans
1f27abc1b1 Refactor arena_mapbits_{small,large}_set() to not preserve unzeroed.
Fix arena_run_split_large_helper() to treat newly committed memory as
zeroed.
2015-08-11 16:45:47 -07:00
Jason Evans
6bdeddb697 Fix build failure.
This regression was introduced by
de249c8679 (Arena chunk decommit cleanups
and fixes.).

This resolves #254.
2015-08-10 23:42:33 -07:00
Mike Hommey
ac5db02034 Make --enable-tls and --enable-lazy-lock take precedence over configure.ac-hardcoded defaults 2015-08-10 23:36:12 -07:00
Jason Evans
45186f0c07 Refactor arena_mapbits unzeroed flag management.
Only set the unzeroed flag when initializing the entire mapbits entry,
rather than mutating just the unzeroed bit.  This simplifies the
possible mapbits state transitions.
2015-08-10 23:03:34 -07:00
Jason Evans
de249c8679 Arena chunk decommit cleanups and fixes.
Decommit arena chunk header during chunk deallocation if the rest of the
chunk is decommitted.
2015-08-10 17:13:59 -07:00
Jason Evans
4be0c3ca42 Add no-OOM assertions to test. 2015-08-07 00:51:11 -07:00
Jason Evans
8fadb1a8c2 Implement chunk hook support for page run commit/decommit.
Cascade from decommit to purge when purging unused dirty pages, so that
it is possible to decommit cleaned memory rather than just purging.  For
non-Windows debug builds, decommit runs rather than purging them, since
this causes access of deallocated runs to segfault.

This resolves #251.
2015-08-07 00:50:58 -07:00
Jason Evans
5716d97f75 Fix an in-place growing large reallocation regression.
Fix arena_ralloc_large_grow() to properly account for large_pad, so that
in-place large reallocation succeeds when possible, rather than always
failing.  This regression was introduced by
8a03cf039c (Implement cache index
randomization for large allocations.)
2015-08-06 23:45:45 -07:00
Daniel Micay
67c46a9e53 work around _FORTIFY_SOURCE false positive
In builds with profiling disabled (default), the opt_prof_prefix array
has a one byte length as a micro-optimization. This will cause the usage
of write in the unused profiling code to be statically detected as a
buffer overflow by Bionic's _FORTIFY_SOURCE implementation as it tries
to detect read overflows in addition to write overflows.

This works around the problem by informing the compiler that
not_reached() means code in unreachable in release builds.
2015-08-04 17:09:43 -04:00
Matthijs
c1a6a51e40 MSVC compatibility changes
- Decorate public function with __declspec(allocator) and __declspec(restrict), just like MSVC 1900
- Support JEMALLOC_HAS_RESTRICT by defining the restrict keyword
- Move __declspec(nothrow) between 'void' and '*' so it compiles once more
2015-08-04 09:01:48 -07:00
Jason Evans
b49a334a64 Generalize chunk management hooks.
Add the "arena.<i>.chunk_hooks" mallctl, which replaces and expands on
the "arena.<i>.chunk.{alloc,dalloc,purge}" mallctls.  The chunk hooks
allow control over chunk allocation/deallocation, decommit/commit,
purging, and splitting/merging, such that the application can rely on
jemalloc's internal chunk caching and retaining functionality, yet
implement a variety of chunk management mechanisms and policies.

Merge the chunks_[sz]ad_{mmap,dss} red-black trees into
chunks_[sz]ad_retained.  This slightly reduces how hard jemalloc tries
to honor the dss precedence setting; prior to this change the precedence
setting was also consulted when recycling chunks.

Fix chunk purging.  Don't purge chunks in arena_purge_stashed(); instead
deallocate them in arena_unstash_purged(), so that the dirty memory
linkage remains valid until after the last time it is used.

This resolves #176 and #201.
2015-08-03 21:49:02 -07:00
Jason Evans
d059b9d6a1 Implement support for non-coalescing maps on MinGW.
- Do not reallocate huge objects in place if the number of backing
  chunks would change.
- Do not cache multi-chunk mappings.

This resolves #213.
2015-07-24 18:39:14 -07:00
Jason Evans
40cbd30d50 Fix huge_ralloc_no_move() to succeed more often.
Fix huge_ralloc_no_move() to succeed if an allocation request results in
the same usable size as the existing allocation, even if the request
size is smaller than the usable size.  This bug did not cause
correctness issues, but it could cause unnecessary moves during
reallocation.
2015-07-24 18:20:48 -07:00
Jason Evans
87ccb55547 Fix huge_palloc() to handle size rather than usize input.
huge_ralloc() passes a size that may not be precisely a size class, so
make huge_palloc() handle the more general case of a size input rather
than usize.

This regression appears to have been introduced by the addition of
in-place huge reallocation; as such it was never incorporated into a
release.
2015-07-23 17:18:49 -07:00
Jason Evans
4becdf21dc Fix sa2u() regression.
Take large_pad into account when determining whether an aligned
allocation can be satisfied by a large size class.

This regression was introduced by
8a03cf039c (Implement cache index
randomization for large allocations.).
2015-07-23 17:14:11 -07:00
Jason Evans
50883deb6e Change arena_palloc_large() parameter from size to usize.
This change merely documents that arena_palloc_large() always receives
usize as its argument.
2015-07-23 17:13:18 -07:00
Jason Evans
71cd2f08ff Leave PRI* macros defined after using them to define FMT*.
Macro expansion happens too late for the #undef directives to work as a
mechanism for preventing accidental direct use of the PRI* macros.
2015-07-23 15:50:09 -07:00
Jason Evans
13473c7c66 Force lazy_lock on MinGW.
This resolves #83.
2015-07-23 14:08:49 -07:00
Jason Evans
5fae7dc1b3 Fix MinGW-related portability issues.
Create and use FMT* macros that are equivalent to the PRI* macros that
inttypes.h defines.  This allows uniform use of the Unix-specific format
specifiers, e.g. "%zu", as well as avoiding Windows-specific definitions
of e.g. PRIu64.

Add ffs()/ffsl() support for compiling with gcc.

Extract compatibility definitions of ENOENT, EINVAL, EAGAIN, EPERM,
ENOMEM, and ENORANGE into include/msvc_compat/windows_extra.h and
use the file for tests as well as for core jemalloc code.
2015-07-23 13:56:25 -07:00
Jason Evans
e475ff1600 Fix a compilation error.
This regression was introduced by
1b0e4abbfd (Port mq_get() to MinGW.).
2015-07-22 15:49:34 -07:00
Jason Evans
e42c309eba Add JEMALLOC_FORMAT_PRINTF().
Replace JEMALLOC_ATTR(format(printf, ...). with
JEMALLOC_FORMAT_PRINTF(), so that configuration feature tests can
omit the attribute if it would cause extraneous compilation warnings.
2015-07-22 15:44:47 -07:00
Jason Evans
1b0e4abbfd Port mq_get() to MinGW. 2015-07-21 16:45:35 -07:00
Jason Evans
00632609df Move JEMALLOC_NOTHROW just after return type.
Only use __declspec(nothrow) in C++ mode.

This resolves #244.
2015-07-21 08:21:13 -07:00
Mike Hommey
50cd636eed Remove JEMALLOC_ALLOC_SIZE annotations on functions not returning pointers
As per gcc documentation:
  The alloc_size attribute is used to tell the compiler that the function
  return value points to memory (...)

This resolves #245.
2015-07-21 09:16:07 +09:00
Jason Evans
218b15cc29 Fix more MinGW build warnings. 2015-07-17 18:12:44 -07:00
Jason Evans
f2bc85298c Add the config.cache_oblivious mallctl. 2015-07-17 16:38:25 -07:00
Dave Rigby
37fd1115c3 Remove extraneous ';' on closing 'extern "C"'
Fixes warning with newer GCCs:

    include/jemalloc/jemalloc.h:229:2: warning: extra ';' [-Wpedantic]
      };
       ^
2015-07-16 11:37:19 +01:00
Jason Evans
5bd879646c Change default chunk size from 256 KiB to 2 MiB.
This change improves interaction with transparent huge pages, e.g.
reduced page faults (at least in the absence of unused dirty page
purging).
2015-07-15 17:15:26 -07:00
Jason Evans
aa2826621e Revert to first-best-fit run/chunk allocation.
This effectively reverts 97c04a9383 (Use
first-fit rather than first-best-fit run/chunk allocation.).  In some
pathological cases, first-fit search dominates allocation time, and it
also tends not to converge as readily on a steady state of memory
layout, since precise allocation order has a bigger effect than for
first-best-fit.
2015-07-15 17:15:19 -07:00
Jason Evans
8693a9ea05 Add timer support for Windows. 2015-07-13 14:35:15 -07:00
Jason Evans
92d72eeef0 Fix alloc_size configure test. 2015-07-10 16:45:32 -07:00
Jason Evans
0b8f0bc0a4 Add configure test for alloc_size attribute. 2015-07-10 16:41:12 -07:00
Jason Evans
ae93d6bf36 Avoid function prototype incompatibilities.
Add various function attributes to the exported functions to give the
compiler more information to work with during optimization, and also
specify throw() when compiling with C++ on Linux, in order to adequately
match what __THROW does in glibc.

This resolves #237.
2015-07-10 16:09:40 -07:00
Jason Evans
dde067264d Fix an integer overflow bug in {size2index,s2u}_compute().
This {bug,regression} was introduced by
155bfa7da1 (Normalize size classes.).

This resolves #241.
2015-07-09 21:36:33 -07:00
Jason Evans
7ae1239177 Fix indentation. 2015-07-09 16:32:49 -07:00
Jason Evans
32dca1191c Add a missing ChangeLog entry. 2015-07-09 11:34:13 -07:00
Jason Evans
d508ec71eb Fix a variable declaration typo. 2015-07-07 20:28:22 -07:00
Jason Evans
b946086b08 Use jemalloc_ffs() rather than ffs(). 2015-07-07 20:16:25 -07:00
Jason Evans
0313607e66 Fix MinGW build warnings.
Conditionally define ENOENT, EINVAL, etc. (was unconditional).

Add/use PRIzu, PRIzd, and PRIzx for use in malloc_printf() calls.  gcc issued
(harmless) warnings since e.g. "%zu" should be "%Iu" on Windows, and the
alternative to this workaround would have been to disable the function
attributes which cause gcc to look for type mismatches in formatted printing
function calls.
2015-07-07 20:10:28 -07:00
Jason Evans
0dd3ad3841 Fix an assignment type warning for tls_callback. 2015-07-07 20:10:27 -07:00
charsyam
ad6800fec3 Fix typos ChangeLog
Fix typos ChangeLog
2015-07-07 09:37:59 -07:00
Jason Evans
be09b81459 Minor ChangeLog edit. 2015-07-07 09:36:05 -07:00