diff options
| author | blueswir1 <blueswir1@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-08-17 16:13:02 +0000 |
|---|---|---|
| committer | blueswir1 <blueswir1@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-08-17 16:13:02 +0000 |
| commit | 90cbed4656108fec86d157ced39192e0774a6615 (patch) | |
| tree | 82f6ad7f9de14391a49df04107644faefdb9e6e3 /tcg | |
| parent | bffe143153b1d4efa472dd24e10c0ae8c3c3cbc1 (diff) | |
Fix 32 bit address overflow
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5019 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/sparc/tcg-target.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tcg/sparc/tcg-target.c b/tcg/sparc/tcg-target.c index e9a2b91de2..44f8092795 100644 --- a/tcg/sparc/tcg-target.c +++ b/tcg/sparc/tcg-target.c @@ -625,8 +625,18 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, /* ld [arg1 + x], arg1 */ tcg_out_ldst(s, arg1, arg1, offsetof(CPUTLBEntry, addend) - offsetof(CPUTLBEntry, addr_read), HOST_LD_OP); + +#if TARGET_LONG_BITS == 32 + /* and addr_reg, x, arg0 */ + tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_I5, 0xffffffff); + tcg_out_arith(s, arg0, addr_reg, TCG_REG_I5, ARITH_AND); + /* add arg0, arg1, arg0 */ + tcg_out_arith(s, arg0, arg0, arg1, ARITH_ADD); +#else /* add addr_reg, arg1, arg0 */ tcg_out_arith(s, arg0, addr_reg, arg1, ARITH_ADD); +#endif + #else arg0 = addr_reg; #endif @@ -785,8 +795,17 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, tcg_out_ldst(s, arg1, arg1, offsetof(CPUTLBEntry, addend) - offsetof(CPUTLBEntry, addr_write), HOST_LD_OP); +#if TARGET_LONG_BITS == 32 + /* and addr_reg, x, arg0 */ + tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_I5, 0xffffffff); + tcg_out_arith(s, arg0, addr_reg, TCG_REG_I5, ARITH_AND); + /* add arg0, arg1, arg0 */ + tcg_out_arith(s, arg0, arg0, arg1, ARITH_ADD); +#else /* add addr_reg, arg1, arg0 */ tcg_out_arith(s, arg0, addr_reg, arg1, ARITH_ADD); +#endif + #else arg0 = addr_reg; #endif |