Commit Graph

25 Commits

Author SHA1 Message Date
emaste
3fe493d2a5 Update libcxxrt upgrade instructions
The typeinfo file no longer exists upstream.
2015-06-18 14:29:46 +00:00
emaste
4381840424 Import libcxxrt master e64e93fe5bba67a6d52cbe5a97f8770c054bfa65.
This includes a number of demangler fixes obtained from upstream
ELF Tool Chain.

PR:		200913
Sponsored by:	The FreeBSD Foundation
2015-06-18 14:12:08 +00:00
dim
46fb43d099 Since newer versions of compiler-rt require unwind.h, and we want to use
the copy in libcxxrt for it, fix the arm-specific header to define the
_Unwind_Action type.

Submitted by:	andrew
MFC after:	3 days
2015-02-26 07:42:16 +00:00
dim
ea2f309a40 Make libcxxrt's parsing of DWARF exception handling tables work on
architectures with strict alignment, by using memcpy() instead of
directly reading fields.

Reported by:	Daisuke Aoyama <aoyama@peach.ne.jp>
Reviewed by:	imp, bapt
Tested by:	bapt
MFC after:	3 days
Differential Revision: https://reviews.freebsd.org/D1967
2015-02-26 07:20:05 +00:00
dim
86d69c3d82 Import libcxxrt master 1cb607e89f6135bbc10f3d3b6fba1f983e258dcc.
Interesting fixes:
1cb607e	Correct gcc version check for __cxa_begin_catch() declaration
	with or without throw()

MFC after:	3 days
2015-01-31 23:31:45 +00:00
dim
addd2d04c7 Revert r256642, not only to reduce diffs against upstream libcxxrt, but
also because it is the wrong approach: comparing typeinfo names deeply
causes trouble if two loaded DSOs use independent types of the same
name.

In addition, this particular change was never merged to FreeBSD 10.x and
9.x, so let's get rid of it before it ends up in an 11.x release.

Discussed with:	theraven, joerg@netbsd
2015-01-31 23:08:29 +00:00
dim
ff569dac96 Partially revert r273382, to reduce diffs against upstream. This was a
temporary fix to solve a conflict with an older version of libc++, and
it is no longer relevant.

MFC after:	3 days
2015-01-30 18:26:38 +00:00
dim
82d90d4880 Import libcxxrt master 00bc29eb6513624824a6d7db2ebc768a4216a604.
Interesting fixes:
76584a0  Reorganize code to use only 32bit atomic ops for 32bit platforms
30d2ae5  Implement __cxa_throw_bad_array_new_length

Reviewed by:	bapt
MFC after:	1 month
Differential Revision: https://reviews.freebsd.org/D1390
2014-12-30 20:01:06 +00:00
bapt
918c5b519d Fix build by marking the new functions as weak
This is a temporary fix
2014-10-21 12:52:01 +00:00
bapt
5a2c236299 Add support for __cxa_throw_bad_array_new_length in libcxxrt
It is required for use with newer g++49

Differential Revision:	https://reviews.freebsd.org/D982
Reviewed by:	theraven
Approved by:	theraven
MFC after:	3 weeks
2014-10-21 10:19:45 +00:00
dim
aa68e12220 Pull in upstream libcxxrt commit 8006101, which makes its cxxabi.h file
compilable just by itself.

PR:		kern/184019
MFC after:	3 days
2014-02-07 21:34:09 +00:00
dim
fd65ae4586 Since C++ typeinfo objects are currently not guaranteed to be merged at
runtime by the dynamic linker, check for their equality in libcxxrt by
not only comparing the typeinfo's name pointers, but also comparing the
full names, if necessary.  (This is similar to what GNU libstdc++ does
in its default configuration.)  The 'deep' check can be turned off again
by defining LIBCXXRT_MERGED_TYPEINFO, and recompiling libcxxrt.

Reviewed by:	theraven
MFC after:	3 days
2013-10-16 17:00:21 +00:00
theraven
674fdc6668 Import a new libcxxrt. This fixes some potential crashing in the demangler.
Approved by:	re (gjb)
MFC after:	1 week
2013-09-23 13:16:21 +00:00
theraven
cf2b42293b Don't use _Unwind_Backtrace() on ARM as it's currently missing from our libgcc_s. andrew@ has patches to add it, so this can be reverted and sync'd with upstream later. 2013-08-31 08:56:33 +00:00
theraven
cd23449aed Remove __attribute__((__aligned__)) that generates incorrect alignment on compilers that know about SSE. Code left over from old header that thought that 64 bits was the maximum alignment that anything would ever need... 2013-08-07 11:30:04 +00:00
theraven
214e4f8fe6 Import new libcxxrt / libc++. This brings some bug fixes, including a potential race condition for static initialisers. 2013-07-10 16:28:24 +00:00
dim
7b9fef1391 Merge libcxxrt c812a07cd2f95c1403baf0bbe0366e7618d1d6d3:
* Don't call the _fast version of the TLS accessor in terminate() or
  unexpected().
  1) TLS may not have been set up yet.
  2) When we're in one of these functions, Really Bad Stuff has
     happened and potentially saving a few cycles really isn't
     important.
* Merge in fixes from FreeBSD trunk to make atomics work with recent
  clang.

MFC after:	1 week
2013-04-27 19:26:56 +00:00
theraven
beb973e6fc Fix a copy-and-paste error in libcxxrt. 2013-02-07 11:08:03 +00:00
theraven
69580a6939 Import new fix from libcxxrt. This fixes the case where you attempt to rethrow
an exception when you haven't caught one.  This is largely a cosmetic fix, as
(unless you have a very unusual terminate handler installed) it will print a
nice error and then abort, rather than just aborting.

MFC after:     7 days
2013-01-21 17:37:23 +00:00
theraven
769d01b2aa Fix libcxxrt / libc++ build with the clang in head.
Pointy hat to:	theraven
2013-01-12 10:06:59 +00:00
theraven
f8a3c6151f Merge new version of libcxxrt. This brings in three fixes:
- Don't treat pointers to members as pointers in catch blocks (they're usually
  fat pointers).

- Correctly catch foreign exceptions in catchalls.

- Ensure that a happens-before relationship is established when setting
  terminate handlers in one thread and calling them in another.
2013-01-11 15:05:55 +00:00
theraven
fd80a3ffe0 Import new version of libcxxrt. Now works correctly with libobjc2 to implement
the unified exception model for Objective-C++.

Approved by:	dim (mentor)
2012-03-20 17:58:15 +00:00
theraven
7bd22d0949 Import new versions of libcxxrt and libc++.
Please tests any C++ code you care about with -stdlib=libc++!

Approved by:	dim (mentor)
2012-03-14 00:09:36 +00:00
theraven
e3f9be528d Update libcxxrt to remove the pthread dependency.
Also add the license from upstream to contrib.

Approved by:	dim (mentor)
2011-11-26 18:46:33 +00:00
theraven
ad5598305f Import libc++ / libcxxrt into base. Not build by default yet (use
MK_LIBCPLUSPLUS=yes to enable).  This is a work-in-progress.  It works for
me, but is not guaranteed to work for anyone else and may eat your dog.

To build C++ using libc++, add -stdlib=libc++ to your CXX and LD flags.

Bug reports welcome, bug fixes even more welcome...

Approved by:	dim (mentor)
2011-11-25 20:59:04 +00:00