7 Commits

Author SHA1 Message Date
Vasileios Kalintiris
8518eb54f3 unwind: Allow the building of libunwind for MIPS.
Summary:
Currently, libunwind doesn't support MIPS. However, with this patch
we do allow the library to build, and we warn the user about the lack of
support for MIPS. Also, the dummy unw_getcontext() implementation for MIPS just
traps on function entry in order to avoid any confusion with silent/weird
failures at runtime.

This allows us to test an LLVM-based toolchain without the dependency on a
GCC toolchain. Of course, C++ exception handling and other things that depend
on stack unwinding will not work until we add a proper implementation of the
stub functions.

Reviewers: compnerd, logan

Subscribers: dsanders, llvm-commits

Differential Revision: http://reviews.llvm.org/D13160

llvm-svn: 248673
2015-09-26 18:26:01 +00:00
Peter Zotov
ce4c5c9849 [libunwind] Add support for OpenRISC 1000.
This patch makes no assumptions on ABI past the ABI defined in
the OpenRISC 1000 spec except that the DWARF register numbers will
be 0-31 for registers r0-r31, which is true for both gcc and
clang at the moment.

llvm-svn: 246413
2015-08-31 05:26:37 +00:00
Peter Zotov
43ad01462a [libunwind] Remove unused includes.
llvm-svn: 246143
2015-08-27 06:58:31 +00:00
Ed Maste
ef766a7e70 Enable zero-cost exceptions on non-Apple arm64 platforms
Use the canonical __aarch64__ predefined macro for 64-bit ARM. Apple-
specific cases are left as __arm64__. Also add an #error for unsupported
architectures to catch this sort of case in the future.

Differential Revision: http://reviews.llvm.org/D12005

llvm-svn: 244893
2015-08-13 14:21:03 +00:00
Logan Chien
5191fe9509 libunwind: Introduce __libunwind_config.h.
Introduce __libunwind_config.h to avoid cross repository circular
dependency with libcxxabi.

llvm-svn: 242642
2015-07-19 15:23:10 +00:00
Saleem Abdulrasool
5ccb0b5f87 unwind: permit building against libstdc++
Include algorithm early as otherwise you get a number of particularly unhelpful
messages about failed static assertions.  This fixes compilation on Linux with
gcc.

llvm-svn: 237002
2015-05-11 16:35:13 +00:00
Saleem Abdulrasool
b1b1911777 unwind: move src/Unwind, include/, and test/ unwind content
This moves the majority of the unwind sources into the new project layout for
libunwind.  This was previously discussed on llvmdev at [1].  This is a
purely movement related change, with the build infrastructure currently still
residing in the libc++abi repository.

[1] http://lists.cs.uiuc.edu/pipermail/llvmdev/2015-January/081507.html

llvm-svn: 235758
2015-04-24 19:39:17 +00:00