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i386-signal.h: Don't do anything with unsigned divide overflow except throw an exception.

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2001-07-06  Andrew Haley  <aph@cambridge.redhat.com>

        * include/i386-signal.h: Don't do anything with unsigned divide
        overflow except throw an exception.

From-SVN: r43813
This commit is contained in:
Andrew Haley 2001-07-06 16:33:10 +00:00 • committed by Andrew Haley
parent b32685987f
commit b8ef6023aa
2 changed files with 5 additions and 15 deletions
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15
libjava/include/i386-signal.h
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@ -88,21 +88,6 @@ do \
_regs->eip = (unsigned long)_eip; \
return; \
} \
else if (((_modrm >> 3) & 7) == 6) /* Unsigned divide */ \
{ \
/* We assume that unsigned divisions are in library code, so \
* we throw one level down the stack, which was hopefully \
* the place that called the library routine. This will \
* break if the library is ever compiled with \
* -fomit-frame-pointer, but at least this way we've got a \
* good chance of finding the exception handler. */ \
\
_eip = (unsigned char *)_ebp[1]; \
_ebp = (unsigned long *)_ebp[0]; \
\
asm volatile ("mov %0, (%%ebp); mov %1, 4(%%ebp)" \
: : "r"(_ebp), "r"(_eip)); \
} \
else \
{ \
/* Advance the program counter so that it is after the start \