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Revision 63a54736

ID63a54736f31f9e11da6fb52319bba26e7d24f571

Added by Jason Wessel about 12 years ago

target-i386: fix crash on x86 32bit linux host with hw breakpoint exceptions

If you make use of hw breakpoints on a 32bit x86 linux host, qemu
will segmentation fault when processing the exception.

The problem is that the value of env is stored in $ebp in the op_helper
raise_exception() function, and it can have the wrong value when
calling it from non generated code.

It is possible to work around the problem by restoring the value of
env before calling raise_exception() using a new helper function that
takes (CPUState *) as one of the arguments.

Signed-off-by: Jason Wessel <>
Signed-off-by: Aurelien Jarno <>

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