libobjc2

Commit Graph

Author	SHA1	Message	Date
David Chisnall	65d6b279a0	Rework C++ exception interop again. We now, the first time we encounter a foreign exception, throw a C++ exception through a frame that has a custom personality function and probe the layout of the __cxa_exception structure. We then use the offsets learned from this along with the public ABI functions for allocating the structure. At the same time, add a test that we are correctly setting the count of uncaught exceptions. Fixes #146	6 years ago
David Chisnall	76e081dc48	Initial run-time detection of C++ EH ABI variant. On Itanium C++ ABI platforms, there are a lot of different variations that have subtly different structure layouts. This commit adds a run-time test that throws a C++ exception through a function that has its personality function replaced with a wrapper so that we can inspect a C++ exception in controlled conditions. Initially, this just detects the exception type value used for C++ exceptions.	6 years ago

Author

SHA1

Message

Date

David Chisnall

65d6b279a0

Rework C++ exception interop again.

We now, the first time we encounter a foreign exception, throw a C++
exception through a frame that has a custom personality function and
probe the layout of the __cxa_exception structure.
We then use the offsets learned from this along with the public ABI
functions for allocating the structure.

At the same time, add a test that we are correctly setting the count of
uncaught exceptions.

Fixes #146

David Chisnall

76e081dc48

Initial run-time detection of C++ EH ABI variant.

On Itanium C++ ABI platforms, there are a lot of different variations
that have subtly different structure layouts.  This commit adds a
run-time test that throws a C++ exception through a function that has
its personality function replaced with a wrapper so that we can inspect
a C++ exception in controlled conditions.

Initially, this just detects the exception type value used for C++
exceptions.

2 Commits (71e38a048fc06fea0c2015662540d46a33b5c45d)