diff options
Diffstat (limited to 'internal/generate/bpfhandler.go')
| -rw-r--r-- | internal/generate/bpfhandler.go | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/internal/generate/bpfhandler.go b/internal/generate/bpfhandler.go index 1dff4d6..071e11d 100644 --- a/internal/generate/bpfhandler.go +++ b/internal/generate/bpfhandler.go @@ -36,10 +36,11 @@ func generateBPFHandler(tp GeneratedTracepoint) string { // between kernel-assigned enter/exit IDs. enterName := enterConstForHandler(f.Name, isEnter) - // Noreturn syscalls (exit, exit_group) get a special enter hook that skips - // the syscall_enter_state_map write. Their exit handler is suppressed (see - // codegen.go), so nothing would ever clear a recorded enter-state entry; - // recording it would only leak stale per-tid entries in the bounded map. + // Noreturn syscalls (exit, exit_group, rt_sigreturn) get a special enter + // hook that skips the syscall_enter_state_map write. Their exit handler is + // suppressed (see codegen.go), so nothing would ever clear a recorded + // enter-state entry; recording it would only leak stale per-tid entries in + // the bounded map. noreturn := isEnter && isNoreturnSyscall(syscallName(f.Name)) return renderHandler(f.Name, ctxStruct, eventStruct, comment, eventTypeConst, extra, isEnter, noreturn, enterName) |