dfd7c9f324
Simplify.
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llvm-svn: 204292
2014-03-20 01:28:28 +00:00
1ed1a3d994
Fix DW_CFA_GNU_args_size handling. The primary architecture using this
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opcode is VAX. A function call pushes the number of arguments given onto
the stack and "ret" will pop it automatically. The FDE of the caller
contains the amount of stack space used for arguments (and possibly
extra padding), so unwinding has to compensate for this when "returning"
from a function. This is exactly the case when step() is done. The
existing handling in unw_set_reg no longer makes sense.
llvm-svn: 204290
2014-03-20 01:23:55 +00:00
59155e79cc
0 is a valid LSDA encoding and can be seen in statically linked
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programs. Initialize lsdaEncoding to DW_EH_PE_omit and check for that
value to decide whether a value should be decoded.
llvm-svn: 203626
2014-03-11 23:43:43 +00:00
3e107b3bd8
Demangle Dc to decltype(auto) as per the Itanium C++ ABI spec.
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llvm-svn: 201533
2014-02-17 21:56:01 +00:00
c5f7e6fe67
[libcxxabi] Fix broken codesourcery.com links in comments
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review: http://llvm-reviews.chandlerc.com/D2718
llvm-svn: 201208
2014-02-12 04:49:09 +00:00
d230a3d1f6
Fix PR17221 - can't catch virtual base classes when throwing derived NULL pointers. Specifically, libc++abi would crash when you tried it.
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llvm-svn: 200904
2014-02-06 04:47:02 +00:00
176be6fed5
Fix PR17222 - catching derived classes from thrown null pointer. Adds tests, too
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llvm-svn: 200864
2014-02-05 18:19:57 +00:00
1ffee2af6e
[libunwind] remove stray conditional
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llvm-svn: 200432
2014-01-30 00:27:16 +00:00
53c98b071e
Use .p2align instead of .align
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llvm-svn: 199941
2014-01-23 21:46:35 +00:00
b3500e6061
Add missing alignment directives in assembly
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llvm-svn: 199915
2014-01-23 18:42:10 +00:00
a625495cb8
Don't redefine static_assert()
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llvm-svn: 199860
2014-01-23 02:08:14 +00:00
fd0a6cf17a
Fix unwinder to build for iOS
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llvm-svn: 199859
2014-01-23 02:06:19 +00:00
5a7b4ca21e
Implement demangling for user-defined operators.
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llvm-svn: 198643
2014-01-06 23:05:04 +00:00
d40d387fb1
Update the copyright credits -- Happy new year 2014!
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FIXME: Dragonegg may be updated at non-trivial changes.
llvm-svn: 198274
2014-01-01 08:27:31 +00:00
1c9ff122b6
Add a first cut at a Registers_arm class, to be used for 32bit arm EHABI unwinding.
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llvm-svn: 197591
2013-12-18 17:53:55 +00:00
5f513f9b4a
Add mangling macros for Unwind's inline assembly.
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This is in preparation for landing an implementation of unw_getcontext
on a system where it's mangled 'unw_getcontext', not '_unw_getcontext'.
llvm-svn: 197523
2013-12-17 21:07:53 +00:00
14fe17f302
Fix demangling crasher. The crasher involved nested <encoding> involving parameter packs, which exposed a logic bug causing an empty vector<string> to be accessed with back(). In addition to fixing the bug, I've inserted numerous preemptive checks for similar bugs in the hopes that if another bug is uncovered, the bug results in an invalid mangled string instead of a demangler crash. Test suite updated with string that was causing the crash.
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llvm-svn: 197063
2013-12-11 19:44:25 +00:00
6b04d06ed3
Rename UnwindRegisters*.s files to UnwindRegisters*.S, step 2 of 2
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These files require preprocessing, so their name should end with a capital S.
llvm-svn: 196555
2013-12-06 00:37:21 +00:00
c6a7b1bc92
Rename UnwindRegisters*.s files to UnwindRegisters*.S, step 1 of 2
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These files require preprocessing, so their name should end with a capital S.
llvm-svn: 196554
2013-12-06 00:35:35 +00:00
c833ec0fca
Fix minor initialization bug in Registers_x86_64.
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According to kledzik, this constructor isn't live code, so no functionality
change.
llvm-svn: 196550
2013-12-06 00:11:01 +00:00
6ceed44db4
80-column wrap a comment in a test
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llvm-svn: 196540
2013-12-05 21:54:49 +00:00
87d4a00e9e
[unwind] remove darwin build dependency on <mach-o/dyld_priv.h>
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llvm-svn: 196436
2013-12-05 00:12:03 +00:00
350bda6eb2
Fixed a couple of test errors; changed 'const A const *' to 'const A* const'. Thanks to Nico for the catch
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llvm-svn: 196355
2013-12-04 05:39:55 +00:00
664711188f
Fix indentation of fields in __cxa_exception to line up
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Align to 8 spaces instead of an inconsistent 9.
llvm-svn: 195974
2013-11-30 17:37:21 +00:00
7c6bb6500e
On Windows, typeids are different between DLLs and EXEs, so comparing
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type_info* will work for typeids from the same compiled file but fail
for typeids from a DLL and an executable. Among other things, exceptions
are not caught by handlers since can_catch() returns false.
Defining _LIBCXX_DYNAMIC_FALLBACK does not help since can_catch() calls
is_equal() with use_strcmp=false so the string names are not compared.
This patch compares typeids first (cheap) and only they are different
calls strcmp.
llvm-svn: 195502
2013-11-22 21:43:23 +00:00
dde62a377c
Comment correction. syslog() syntax is:
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void syslog(int facility_priority, const char* format, ...);
This is indeed how it is used in private_typeinfo.cpp.
llvm-svn: 195452
2013-11-22 12:11:40 +00:00
66da53e0da
If libc++ has not declared bad_array_length, then declare it here just so that it gets into the binary.
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llvm-svn: 194208
2013-11-07 17:16:37 +00:00
2c88a9bfb0
Swap contents of UnwindRegistersRestore.s and UnwindRegistersSave.s
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llvm-svn: 193840
2013-11-01 00:37:20 +00:00
fbea189748
Rename LIBUNWIND_AVAIL to LIBUNWIND_UNAVAIL so as to not conflict with other (different) LIBUNWIND_AVAIL define
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llvm-svn: 193839
2013-11-01 00:32:26 +00:00
517cb27c43
Move local Db type out to namespace scope.
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llvm-svn: 193169
2013-10-22 16:45:48 +00:00
55410fff8e
unwinder: conditionalise availability
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__attribute__ (( unavailable )) is for Apple specific builds. Create a macro
to conditionalise the usage of the macro. This is to aid in porting the
unwinder to other platforms.
llvm-svn: 192868
2013-10-17 03:57:41 +00:00
95a975bc60
[unwind] Fix unw_init_remote_thread() use to void* instead of thread_t for parameter to match other implementations
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llvm-svn: 192248
2013-10-08 22:59:34 +00:00
4d95aae2f7
[unwind] add required #include
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llvm-svn: 192245
2013-10-08 22:51:34 +00:00
f6330ddc0d
Fix conditionals on __Unwind_SjLj_* functions to only build for SJLJ based architectures
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llvm-svn: 192241
2013-10-08 21:57:22 +00:00
31057d618e
Consistent spelling of names.
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llvm-svn: 192180
2013-10-08 12:35:07 +00:00
312fcd0e1c
libcxxabi contains the runtime support for C++. But, as some folks have
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realized, it is not complete. It relies on some _Unwind_* functions to be
supplied by the OS. That means it cannot be ported to platforms that don’t
already have an unwinder.
Years ago Apple wrote its own unwinder for MacOSX and iOS. To make libcxxabi
complete, Apple has decided the source code for its unwinder can be contributed
to the open source LLVM libcxxabi project, with a dual licensed under LLVM
and MIT license.
So, I’ve spent some time cleaning up the sources to make them conform with
LLVM style and to conditionalize the sources in a way that should make it
easier to port to other platforms. The sources are in a separate "Unwind"
directory under "src" in libcxxabi.
Background:
Most architectures now use "zero cost" exceptions for C++. The zero cost means
there are no extra instructions executed if no exceptions are thrown. But if
an exception is thrown, the runtime must consult side tables and figure out how
to restore registers and "unwind" from the current stack frame to the catch
clause. That ability to modify the stack frames and cause the thread to resume
in a catch clause with all registers restored properly is the main purpose
of the unwinder.
This unwinder has two levels of API. The high level APIs are the _Unwind_*
functions which the cxa_* exception functions in libcxxabi require. The low
level APIs are the unw_* functions which are an interface defined by the the
old HP libunwind project (which shares no code with this unwinder).
llvm-svn: 192136
2013-10-07 21:39:41 +00:00
46c9950f48
Adding bad_array_length to libc++abi
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llvm-svn: 190479
2013-09-11 01:42:02 +00:00
9735f1a06b
Add ability to set OPTIONS for compile
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llvm-svn: 190371
2013-09-09 23:53:08 +00:00
8d362a999e
Change the two last remaining _LIBCPP_CANTTHROW to _NOEXCEPT
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llvm-svn: 189603
2013-08-29 19:19:27 +00:00
59a5a956f5
Propagate the removal of _LIBCPP_CANTTHROW (r189046) to libcxxabi. This fixes http://llvm.org/bugs/show_bug.cgi?id=16996 .
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llvm-svn: 189194
2013-08-25 17:00:57 +00:00
b162939c1a
tip-of-trunk clang has corrected some access checks for special members in a virtual inheritance hierarchy. Change a few private inheritances to protected. This change will not impact what the test was testing. This fixes http://llvm.org/bugs/show_bug.cgi?id=16753 .
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llvm-svn: 187429
2013-07-30 19:00:45 +00:00
04c4cffbe1
I had a buffer mismanagement bug in the demangler.
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llvm-svn: 187255
2013-07-26 22:14:53 +00:00
ef93bc1c8a
Updated CREDITS.TXT
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llvm-svn: 185464
2013-07-02 19:01:59 +00:00
60c16eb7f5
I'd no sooner made the last commit when Matthew Dempsky sent me another test case that led me to yet another closely related test case that the current design could not handle. I've now changed the way forward references are handled completely. It wasn't that much code to change. The demangler, when confronted with a forward reference to a template parameter, now parses things twice. During the second parse, all forward references are remembered from the first parse. Test suite updated with new case.
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llvm-svn: 184672
2013-06-23 19:52:45 +00:00
cde9e006d8
After a private conversation with Arthur O'Dwyer, and a good night's sleep, I believe this fix is a better fix than what I committed in r184656 yesterday. I've basically moved the checking for '`' from the start of the demangling process to the end of it. In the process I discovered that one of the test cases no longer demangled to the expected string. After further investigation I believe this case to not be a valid mangled string, and so I moved the test case to the 'invalid cases'. The reason I believe it is invalid is that it should use T_ instead of T0_ to index the template parameter.
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llvm-svn: 184668
2013-06-23 17:14:35 +00:00
ae10f9d45e
Filter out '`' in mangled strings and reject them as invalid if found.
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llvm-svn: 184656
2013-06-23 03:36:38 +00:00
72a54eab35
I created a random mangled name generator and have thrown about 200 million random strings at the demangler. I succeeded in crashing it twice more and those crashers have been fixed and the test suite updated with the crash cases.
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llvm-svn: 184562
2013-06-21 17:04:24 +00:00
8935442538
Another demangler crasher. Updated test suite to prevent regression.
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llvm-svn: 184477
2013-06-20 21:49:34 +00:00
763e591461
Protect against invalid mangled names. Add test suite for invalid mangled names.
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llvm-svn: 184394
2013-06-20 01:55:07 +00:00
b076753454
Demangle objc mangling implemented in r184250
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llvm-svn: 184301
2013-06-19 13:43:18 +00:00
Joerg Sonnenberger