Commit Graph

305 Commits

Author SHA1 Message Date
Nico Weber 3c2b2ae7a7 libcxxabi cmake: Use HandleLLVMOptions.cmake, don't manually add -std=c++11.
No intended behavior change on Linux and Mac OS X.  On Windows, having libcxxabi
in one's checkout should now no longer break running cmake. (cl.exe supports
c++11, but doesn't understand a -std= flag.)

llvm-svn: 213214
2014-07-16 23:53:37 +00:00
Dan Albert d321747153 Fix for libc++abi when using -Wl,--as-needed.
The cmake files for libc++abi and the unwinder weren't linking against
libpthread or an unwind library. If the tests were linked with
-Wl,--as-needed, these libraries wouldn't be linked, causing them to
fail.

Patch contributed by İsmail Dönmez.

llvm-svn: 212958
2014-07-14 17:00:29 +00:00
Dan Albert 923121e85b Support LLVM_LIBDIR_SUFFIX.
This is useful for distros installing under /usr/lib64.

Patch from İsmail Dönmez.

llvm-svn: 212826
2014-07-11 15:52:58 +00:00
Dan Albert 7c06819ecd Add support for building and testing the unwinder.
Note: The unwinder currently only works on Darwin and on ARM Linux.
Non-ARM Linux support is not yet implemented, and will fail to build.

llvm-svn: 212824
2014-07-11 15:36:02 +00:00
Dan Albert 3c4780e8c3 Make cmake cxxflags match those in lib/buildit.
llvm-svn: 212768
2014-07-10 22:23:03 +00:00
Dan Albert a770f9d66b Add lit configs for libcxxabi tests.
This makes running libcxxabi tests on Linux _much_ easier.
Adds a check-libcxxabi target to cmake.

Also defaults to building a dynamic libc++abi. This is so that the
default options still test the libc++abi that is being built. There are
two problems with testing a static libc++abi. In the case of a
standalone build, the tests will link the system's libc++, which might
not have been built against our libc++abi. In the case of an in tree
build, libc++ will prefer a dynamic libc++abi from the system over a
static libc++abi from the output directory.

llvm-svn: 212672
2014-07-10 02:20:11 +00:00
Dan Albert 0ed2e2f6ec Add a cmake build system.
Will add support for tests with lit in a later patch.
This does not yet support building the unwinder in src/Unwind.

llvm-svn: 212286
2014-07-03 19:35:48 +00:00
Dan Albert c67aa5403c Fix a warning about undeclared call to abort().
llvm-svn: 212232
2014-07-02 22:44:35 +00:00
Logan Chien 93a68fb0c7 Revert the LSDA change to scan_eh_tab.
This commit reverts the LSDA-related change in r211745.

The r211745 adds a new argument to scan_eh_tab(), i.e. lsda.
However, IMO, calling _Unwind_GetLanguageSpecificData() directly in
scan_eh_tab() was more intuitive and reduces several function call
to _Unwind_GetLanguageSpecificData() in __cxx_personality_v0().

llvm-svn: 212037
2014-06-30 12:35:29 +00:00
Logan Chien 05d761cf24 Silence the implicit signed/unsigned conversion warning.
llvm-svn: 211912
2014-06-27 17:17:44 +00:00
Logan Chien 92a4d51fa6 Silence unused variable and parameter warnings.
llvm-svn: 211790
2014-06-26 16:58:38 +00:00
Logan Chien 37be06a0c6 Fix linux build.
* Replace strlcpy with snprintf since strlcpy is not available
  in glibc.

* Replace __LINUX__ with __linux__.

llvm-svn: 211784
2014-06-26 13:56:23 +00:00
Logan Chien 6d3dae07ca Add missing header for _LIBUNWIND_LOG().
llvm-svn: 211775
2014-06-26 12:22:38 +00:00
Nick Kledzik 0f0cd46201 Fix building for iOS
llvm-svn: 211751
2014-06-26 00:25:33 +00:00
Nico Weber 49f09fd88a Minor libc++abi changes to make things build better with gcc.
llvm-svn: 211748
2014-06-25 23:55:37 +00:00
Nico Weber ae5438701e Update libc++abi to use the ARM EHABI unwinder from its libunwind.
llvm-svn: 211745
2014-06-25 23:52:07 +00:00
Nico Weber 97080e0c5e Land support for ARM EHABI unwinding for libunwind.
This was written by:
Albert Wong <ajwong@chromium.org>
Antoine Labour <piman@chromium.org>
Dana Jansen <danakj@chromium.org
Jonathan Roelofs <jonathan@codesourcery.com>
Nico Weber <thakis@chromium.org>

llvm-svn: 211743
2014-06-25 23:39:00 +00:00
Nico Weber af5ca95730 Start landing support for ARM EHABI unwinding.
The new code will be behind a LIBCXXABI_ARM_EHABI define (so that platforms
that don't want it can continue using e.g. SJLJ). This commit mostly just
adds the LIBCXXABI_ARM_EHABI define.

llvm-svn: 211739
2014-06-25 22:49:13 +00:00
Marshall Clow fa9fd4a09b Add a FAQ section, with a question about why the std::exception class destructors live in libc++abi
llvm-svn: 210661
2014-06-11 16:54:09 +00:00
Jonathan Roelofs 72a15cda3f Add test case for inherited exceptions
Test case written by Dana Jansens.

llvm-svn: 210129
2014-06-03 21:50:11 +00:00
Jonathan Roelofs 20f6f45c5b Add EH test case checking that handlers in noexcept functions can still unwind
llvm-svn: 209944
2014-05-31 00:25:59 +00:00
Jonathan Roelofs 75fd1b5f51 Add EH test cases corresponding to C++ ABI # 15.3.3
llvm-svn: 209943
2014-05-31 00:24:58 +00:00
Nico Weber 897f23dda8 Let libc++abi compile with gcc.
There was a single problem in cxa_demangle.cpp, where gcc would complain
`error: changes meaning of 'String'` about the line `typedef String String;`.
According to 3.3.7p2, this diagnostic is allowed (but not required, so clang
does not have to report this).

As a fix, make string_pair a template and pass String as template parameter.
This fixes the error with gcc and also removes some repetition from the code. 

No behavior change.

llvm-svn: 209909
2014-05-30 17:27:21 +00:00
Logan Chien 63488f0e4e Fix typo in comment.
llvm-svn: 208795
2014-05-14 17:16:57 +00:00
Richard Smith bd32a449e6 PR19091: Track whether we're demangling a function template specialization to
determine whether we get a mangling for a return type, rather than trying to
figure it out based on whether the mangled name ended with a '>'.

llvm-svn: 208611
2014-05-12 18:44:13 +00:00
Logan Chien dc65ab4cef Implement ARM EHABI exception handling.
This commit implements the ARM zero-cost exception handling
support for libc++abi.

llvm-svn: 208466
2014-05-10 00:42:10 +00:00
Logan Chien cc24fc546b Check exception specification with __cplusplus.
To allow the compilation with gcc, we can't use the
__has_feature(cxx_noexcept) to detect the default destructor
exception specification, which is noexcept(true) by default
in C++11.  We should use __cplusplus >= 201103L instead.

llvm-svn: 208465
2014-05-10 00:40:54 +00:00
Jonathan Roelofs 6bfee10279 Fixes more incorrect #ifs for SJ/LJ exceptions
Replaces several `#if __arm__` with `#if __USING_SJLJ_EXCEPTIONS__`.

llvm-svn: 208352
2014-05-08 19:13:16 +00:00
Jonathan Roelofs bce1e4d60e Fix broken build from r208135
llvm-svn: 208350
2014-05-08 18:48:43 +00:00
Marshall Clow 1f6f59ac37 Make libc++abi use the implementation of __numstr from libc++. No functionality change, just removal of duplicated code.
llvm-svn: 208246
2014-05-07 20:17:41 +00:00
Jonathan Roelofs 40e9842854 On single threaded systems, turn mutexes into nops
http://reviews.llvm.org/D3386

llvm-svn: 208135
2014-05-06 21:30:56 +00:00
Joerg Sonnenberger c72473d87b Try harder to get the compiler to use float registers in different
places to increase the chance of messing up any preserved registers.

llvm-svn: 207938
2014-05-04 16:31:33 +00:00
Joerg Sonnenberger e9a72d54c7 Don't use bash features.
llvm-svn: 207907
2014-05-03 12:09:55 +00:00
Nick Kledzik 326254f422 Add unwind test case that checks restoring of float registers (such as on AArch64)
llvm-svn: 207481
2014-04-29 01:08:23 +00:00
Nick Kledzik d7339b48f7 Fix cast warning
llvm-svn: 207469
2014-04-28 23:49:49 +00:00
Nick Kledzik 0c790015df Use return address register from CIE. Move DwarfInstructions::lastRestoreReg() to Register::lastDwarfRegNum().
llvm-svn: 207467
2014-04-28 23:43:21 +00:00
Nick Kledzik 4141a3bca8 No need to specialize DwarfInstructions::getCFA(). It is the same for all archs
llvm-svn: 207463
2014-04-28 23:12:37 +00:00
Nick Kledzik 0fef333dee Properly sign extend delta in compact unwind info
llvm-svn: 207170
2014-04-25 01:39:06 +00:00
Nick Kledzik f00751bfa1 Fix one missed use of DW_EH_PE_omit in r203626
llvm-svn: 207169
2014-04-25 01:35:29 +00:00
Nick Kledzik 49fdc41b21 Remove unused/obsolete ARM64 constants
llvm-svn: 207064
2014-04-24 02:33:46 +00:00
Dan Albert 5f60710f2b Fix virtual class with non-virtual dtor complaint
Fixes compiler complaint about:
src/Unwind/UnwindCursor.hpp:366:25: error: 'libunwind::AbstractUnwindCursor' has virtual functions but non-virtual destructor [-Werror,-Wnon-virtual-dtor]

llvm-svn: 206942
2014-04-23 04:46:46 +00:00
Dan Albert 0056c8eb01 Fixes incorrect #ifs for SJ/LJ exceptions
The was working because, given __APPLE__, _LIBUNWIND_BUILD_SJLJ_APIS was set to
__arm__, but other ARM targets not using SJ/LJ will fail to compile.

llvm-svn: 206941
2014-04-23 04:45:42 +00:00
Dan Albert c579b935c3 Fixes type of dyldInfo for glibc/bionic systems
Darwin and the BSDs define a tagged struct dl_info typedef'd as Dl_info. glibc
and bionic typedef an anonymous struct as Dl_info.

llvm-svn: 206939
2014-04-23 04:20:57 +00:00
Jonathan Roelofs 9fc137bd1d Replace bzero with memset
... so that we can use newlib as the c library.

llvm-svn: 206427
2014-04-16 23:26:55 +00:00
Nick Kledzik 0f64d66304 Properly sign extend sdata2/4 in unwinder. Patch by Patrick Wildt
llvm-svn: 206122
2014-04-12 23:22:52 +00:00
Nick Kledzik 74ebf58742 Properly conditionalize DwarfFDECache<A>::dyldUnloadHook. Patch by Patrick Wildt
llvm-svn: 206121
2014-04-12 22:11:11 +00:00
Logan Chien aacc1c76f9 Code cleanup and re-indent cxa_exception.hpp
llvm-svn: 206108
2014-04-12 11:56:41 +00:00
Joerg Sonnenberger 7955feb82f The content of .eh_frame may be misaligned, so use memcpy. This is seen
in the wild on SH3.

llvm-svn: 205756
2014-04-08 11:43:49 +00:00
Joerg Sonnenberger fd0d20fae7 Include stdlib.h for getenv when !NDEBUG.
llvm-svn: 205573
2014-04-03 22:00:08 +00:00
Joerg Sonnenberger dfd7c9f324 Simplify.
llvm-svn: 204292
2014-03-20 01:28:28 +00:00