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[libcxxabi] Check __SEH__, when checking if ARM EHABI is implied

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ARM EHABI isn't signalled by any specific compiler builtin define,
but is implied by the lack of defines specifying any other
exception handling mechanism, `__USING_SJLJ_EXCEPTIONS__` or
`__ARM_DWARF_EH__`.

As Windows SEH also can be used for unwinding, check for the
`__SEH__` define too, in the same way.

Differential Revision: https://reviews.llvm.org/D126866
This commit is contained in:
Martin Storsjö 2022-05-07 00:37:40 +03:00
parent dfa88927ae
commit 4a3722a2c3
1 changed files with 1 additions and 1 deletions
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2
libcxxabi/include/__cxxabi_config.h
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@ -10,7 +10,7 @@
#define ____CXXABI_CONFIG_H
#if defined(__arm__) && !defined(__USING_SJLJ_EXCEPTIONS__) && \
!defined(__ARM_DWARF_EH__)
!defined(__ARM_DWARF_EH__) && !defined(__SEH__)
#define _LIBCXXABI_ARM_EHABI
#endif