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makeWritable() rounds the memory down to the next page boundary. Usually
we include the exception handler this way, unless the offset from the
page boundary is less than the exception handler size. Make it explicit
that we do want the exception handler to be writable, too.
Fixes: QTBUG-89513
Pick-to: 5.15 6.0
Change-Id: I2fb8fb0e1dcc3450b036924463dc1b40d2020c46
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
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Compilation otherwise fails when cross-compiling on linux,
since the filename is is lowercased.
Change-Id: I0b25f814543b677802cd6f07dc91964547a6028a
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
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In order for global exception handlers to be called reliably, the runtime
needs to unwind through JIT-generated code. This can be facilitated by
installing a "function table" for each JITed function that specifies "use
the frame pointer".
Also make sure to generate a function table for JIT'ed regular
expressions. Those were forgotten also in the linux case.
Fixes: QTBUG-50061
Change-Id: Ib0b8ae9356ed80afe1cab017e36efa4ccbe73f90
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
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