diff options
| author |   Max Filippov <jcmvbkbc@gmail.com> | 2012-08-22 22:03:35 +0400 |
|---|---|---|
| committer |   Michael Roth <mdroth@linux.vnet.ibm.com> | 2012-09-05 10:38:39 -0500 |
| commit | 5a16dd9bc80bc1c519c500392122c179a2942b37 (patch) | |
| tree | 74446f313076b480c3aff1d01d93af54da0c800c | |
| parent | c7580c103434c8b96c5a2cd54aaa9a092bb638a7 (diff) | |
target-xtensa: return ENOSYS for unimplemented simcalls
This prevents guest from proceeding with uninitialised garbage returned
from unimplemented simcalls.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
(cherry picked from commit e7eee62a90c671d22d50964b7de05e3f4fd96f5f)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
| -rw-r--r-- | xtensa-semi.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/xtensa-semi.c b/xtensa-semi.c index b7c8c3456..44b7dc3a1 100644 --- a/xtensa-semi.c +++ b/xtensa-semi.c @@ -219,6 +219,8 @@ void HELPER(simcall)(CPUXtensaState *env) default: qemu_log("%s(%d): not implemented\n", __func__, regs[2]); + regs[2] = -1; + regs[3] = ENOSYS; break; } } |