add zero-shot results

1 files changed, 19 insertions, 0 deletions

diff --git a/results/classifier/zero-shot-user-mode/output/instruction/1791763 b/results/classifier/zero-shot-user-mode/output/instruction/1791763
new file mode 100644
index 000000000..7afe07140
--- /dev/null
+++ b/results/classifier/zero-shot-user-mode/output/instruction/1791763
@@ -0,0 +1,19 @@
+instruction: 0.474
+syscall: 0.282
+runtime: 0.244
+
+
+
+broken signal handling in nios2 user-mode emulation
+
+This bug is against the 3.0 release.
+
+It appears that the signal handling parts of the nios2 user-mode emulation have never really been completed or tested.  Some examples of failing tests from the GCC testsuite are gcc.dg/pr78185.c and gcc.dg/cleanup-10.c.
+
+Some problems I've identified and tried to fix with the attached patch are:
+
+- Code copied from the Linux kernel wasn't adjusted to differentiate between host and target data types and address spaces.
+
+- The sigaltstack() system call returns EINVAL because fields are listed in the wrong order in struct target_sigaltstack.
+
+With this patch, the system calls to set up the signal handler are returning successfully, but the handler isn't being invoked, so something is still wrong.  I think I need another pair of eyes to look over this code.
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