Until now the only exception APIs supported by gcc_personality_v0
are DWARF EH and SJLJ. This adds support for ARM EHABI as well.
This is achieved by
a) changing the function signature on ARM EHABI,
b) unwinding the stack before returning _URC_CONTINUE_UNWIND.
See "Exception Handling ABI for the ARM Architecture" for details
(http://infocenter.arm.com/help/topic/com.arm.doc.ihi0038b/IHI0038B_ehabi.pdf).
Patch by Timon Van Overveldt.
llvm-svn: 263010
If the builtins are built with libgcc as the unwind provider on ARM, the exposed
_Unwind_SetIP is a macro. This results in the following warning due to
expansion of the argument:
warning: suggest parentheses around arithmetic in operand of ‘|’ [-Wparentheses]
Add a no-op set of parenthesis around the argument that will prevent this
warning.
llvm-svn: 248686
Use unwind.h to get the declarations for unwinding interfaces. This header is
already provided by clang and gcc, so this adds no additional dependencies for
building the builtins library. It avoids the duplication which may drift over
time though.
llvm-svn: 225990
Logan Chien