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rs6000 exception handling support 

From-SVN: r8970
This commit is contained in:
Mike Stump 1995-02-18 21:05:17 +00:00
parent 1e58f10757
commit 71a810956e
1 changed files with 18 additions and 0 deletions
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18
gcc/libgcc2.c
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@ -2277,6 +2277,24 @@ __unwind_function(void *ptr)
asm("ret"); asm("ret");
} }
#endif #endif
#if #machine(rs6000)
__unwind_function(void *ptr)
{
asm("mr 31,1");
asm("l 1,0(1)");
asm("l 31,-4(1)");
asm("# br");
asm("mr 31,1");
asm("l 1,0(1)");
/* use 31 as a scratch register to restore the link register. */
asm("l 31, 8(1);mtlr 31 # l lr,8(1)");
asm("l 31,-4(1)");
asm("# br");
asm("mtctr 3;bctr # b 3");
}
#endif
#endif /* L_eh */ #endif /* L_eh */
#ifdef L_pure #ifdef L_pure