1 files changed, 47 insertions, 0 deletions
diff --git a/results/classifier/118/socket/1075272 b/results/classifier/118/socket/1075272
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+socket: 0.921
+architecture: 0.900
+network: 0.791
+device: 0.791
+kernel: 0.783
+user-level: 0.735
+performance: 0.633
+ppc: 0.555
+graphic: 0.546
+arm: 0.539
+register: 0.510
+mistranslation: 0.496
+risc-v: 0.455
+files: 0.439
+vnc: 0.435
+VMM: 0.403
+permissions: 0.403
+boot: 0.360
+peripherals: 0.304
+PID: 0.292
+KVM: 0.290
+TCG: 0.257
+debug: 0.255
+i386: 0.242
+hypervisor: 0.198
+x86: 0.194
+virtual: 0.148
+assembly: 0.110
+semantic: 0.011
+
+socket type mapping wrong for mips app-level emulation
+
+linux-user/syscall.c's do_socket function contains socket type remapping to work around the nonsensically-permuted MIPS socket types. However, it fails to account for the SOCK_NONBLOCK and SOCK_CLOEXEC flags that may be or'd onto the type. Thus, a call from the application such as:
+
+socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)
+
+will fail to have the type permutation performed, and will be passed to the system as:
+
+socket(AF_INET, SOCK_DGRAM, IPPROTO_TCP)
+
+resulting in EPROTONOSUPPORT.
+
+To fix this, the flag bits should be masked off of the type before the permutation. They also need remapping themselves (since MIPS uses different values for these flags bits).
+
+This should be fixed in QEMU 1.6.
+
+