From 371e210b83c244d8828ad2fa1b3d7cef15fbf463 Mon Sep 17 00:00:00 2001 From: Adin Scannell Date: Fri, 6 Dec 2019 16:58:28 -0800 Subject: Add runtime tracing. This adds meaningful annotations to the trace generated by the runtime/trace package. PiperOrigin-RevId: 284290115 --- pkg/sentry/kernel/syscalls.go | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'pkg/sentry/kernel/syscalls.go') diff --git a/pkg/sentry/kernel/syscalls.go b/pkg/sentry/kernel/syscalls.go index 220fa73a2..2fdee0282 100644 --- a/pkg/sentry/kernel/syscalls.go +++ b/pkg/sentry/kernel/syscalls.go @@ -339,6 +339,14 @@ func (s *SyscallTable) Lookup(sysno uintptr) SyscallFn { return nil } +// LookupName looks up a syscall name. +func (s *SyscallTable) LookupName(sysno uintptr) string { + if sc, ok := s.Table[sysno]; ok { + return sc.Name + } + return fmt.Sprintf("sys_%d", sysno) // Unlikely. +} + // LookupEmulate looks up an emulation syscall number. func (s *SyscallTable) LookupEmulate(addr usermem.Addr) (uintptr, bool) { sysno, ok := s.Emulate[addr] -- cgit v1.2.3