diff options
Diffstat (limited to 'results/classifier/zero-shot-user-mode/instruction/1791763')
| -rw-r--r-- | results/classifier/zero-shot-user-mode/instruction/1791763 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/results/classifier/zero-shot-user-mode/instruction/1791763 b/results/classifier/zero-shot-user-mode/instruction/1791763 new file mode 100644 index 00000000..7afe0714 --- /dev/null +++ b/results/classifier/zero-shot-user-mode/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. \ No newline at end of file |