diff options
| author | Cédric Le Goater <clg@fr.ibm.com> | 2014-02-20 14:20:35 +0100 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-03-05 03:06:48 +0100 |
| commit | 3f34cf910cbc4e77d25a300d8c290ae50bdcc2ed (patch) | |
| tree | 537f5643abb8ff41e50cf7f1213bef96219a1769 /target-ppc | |
| parent | 61de36761b565a4138d8ad7ec75489ab28fe84b6 (diff) | |
target-ppc: add extended opcodes for dcbt/dcbtst
The latest glibc provides a memrchr routine using an extended opcode
of the 'dcbt' instruction :
00000000000a7cc0 <memrchr>:
a7cc0: 11 00 4c 3c addis r2,r12,17
a7cc4: b8 f8 42 38 addi r2,r2,-1864
a7cc8: 14 2a e3 7c add r7,r3,r5
a7ccc: d0 00 07 7c neg r0,r7
a7cd0: ff ff e7 38 addi r7,r7,-1
a7cd4: 78 1b 6a 7c mr r10,r3
a7cd8: 24 06 e6 78 rldicr r6,r7,0,56
a7cdc: 60 00 20 39 li r9,96
a7ce0: 2c 32 09 7e dcbtt r9,r6
....
which breaks grep, and other commands, in TCG mode :
invalid bits: 02000000 for opcode: 1f - 16 - 08 (7e09322c) 00003fff799feca0
This patch adds the extended opcodes for dcbt/dcbtst as no-ops just
like the 'dcbt' instruction.
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'target-ppc')
| -rw-r--r-- | target-ppc/translate.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 951f15e055..8885490aa8 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -9596,8 +9596,8 @@ GEN_HANDLER(mtspr, 0x1F, 0x13, 0x0E, 0x00000001, PPC_MISC), GEN_HANDLER(dcbf, 0x1F, 0x16, 0x02, 0x03C00001, PPC_CACHE), GEN_HANDLER(dcbi, 0x1F, 0x16, 0x0E, 0x03E00001, PPC_CACHE), GEN_HANDLER(dcbst, 0x1F, 0x16, 0x01, 0x03E00001, PPC_CACHE), -GEN_HANDLER(dcbt, 0x1F, 0x16, 0x08, 0x02000001, PPC_CACHE), -GEN_HANDLER(dcbtst, 0x1F, 0x16, 0x07, 0x02000001, PPC_CACHE), +GEN_HANDLER(dcbt, 0x1F, 0x16, 0x08, 0x00000001, PPC_CACHE), +GEN_HANDLER(dcbtst, 0x1F, 0x16, 0x07, 0x00000001, PPC_CACHE), GEN_HANDLER(dcbz, 0x1F, 0x16, 0x1F, 0x03C00001, PPC_CACHE_DCBZ), GEN_HANDLER(dst, 0x1F, 0x16, 0x0A, 0x01800001, PPC_ALTIVEC), GEN_HANDLER(dstst, 0x1F, 0x16, 0x0B, 0x02000001, PPC_ALTIVEC), |