diff options
| author | Mike Stump <mrs@gcc.gnu.org> | 1995-02-18 21:05:17 +0000 |
|---|---|---|
| committer | Mike Stump <mrs@gcc.gnu.org> | 1995-02-18 21:05:17 +0000 |
| commit | 71a810956e321407dfead626fc34d8c58b739a17 (patch) | |
| tree | 2af341ae8b77ff679efd850d98a890fded0661ad /gcc | |
| parent | 1e58f107572eacff48d711a0db224b07a5e5be7f (diff) | |
| download | gcc-71a810956e321407dfead626fc34d8c58b739a17.zip gcc-71a810956e321407dfead626fc34d8c58b739a17.tar.gz gcc-71a810956e321407dfead626fc34d8c58b739a17.tar.bz2 | |
rs6000 exception handling support
From-SVN: r8970
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/libgcc2.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/libgcc2.c b/gcc/libgcc2.c index 661a799..3f12552 100644 --- a/gcc/libgcc2.c +++ b/gcc/libgcc2.c @@ -2277,6 +2277,24 @@ __unwind_function(void *ptr) asm("ret"); } #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 */ #ifdef L_pure |