Ed Schouten fd939c0f6c Drop the dependency on dl_unwind_find_exidx(). ... While porting libunwind over to CloudABI for ARMv6, I observed that this source file doesn't build, as it depends on dl_unwind_find_exidx(), which CloudABI's C library was lacking. After I added that function, I still needed to patch up libunwind to define _Unwind_Ptr. Taking a step back, I wonder why we need to make use of this function anyway. The unwinder already has some nice code to use dl_iterate_phdr() to scan for a PT_GNU_EH_FRAME header. The dl_unwind_find_exidx() does the same thing, except matching PT_ARM_EXIDX instead. We could also do that ourselves. This change gets rid of the dl_unwind_find_exidx() call and extends the dl_iterate_phdr() loop. In addition to making the code a bit shorter, it has the advantage of getting rid of some of those OS-specific #ifdefs. This now means that if an operating system only provides dl_iterate_phdr(), it gets support for unwinding on all architectures. There is no need to add more stuff, just to get ARMv6 support. Differential Revision: https://reviews.llvm.org/D28082 llvm-svn: 295944		2017-02-23 08:05:58 +00:00
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cmake	[CMake] Get libunwind building under LLVM/runtimes	2016-11-08 23:02:49 +00:00
include	X86: swap EBP, ESP on !APPLE	2017-01-21 16:22:59 +00:00
src	Drop the dependency on dl_unwind_find_exidx().	2017-02-23 08:05:58 +00:00
test	[libunwind] Properly align _Unwind_Exception.	2016-07-20 23:56:42 +00:00
.arcconfig	Update .arcconfig	2016-07-20 23:56:17 +00:00
.clang-format	unwind: add a .clang-format	2015-05-07 19:50:18 +00:00
CMakeLists.txt	[libunwind][CMake] Use libc++ headers when available	2017-02-16 05:18:08 +00:00