diff options
Diffstat (limited to 'internal/generate/codegen_test.go')
| -rw-r--r-- | internal/generate/codegen_test.go | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/internal/generate/codegen_test.go b/internal/generate/codegen_test.go index bb06418..9bd391e 100644 --- a/internal/generate/codegen_test.go +++ b/internal/generate/codegen_test.go @@ -1378,10 +1378,30 @@ func TestGenerateClockNanosleepHandlerCapturesRequestedTimespec(t *testing.T) { requireContains(t, output, "struct sleep_event *ev") requireContains(t, output, "ev->event_type = ENTER_SLEEP_EVENT;") + // clock_nanosleep(clockid_t, int flags, const struct timespec *request, + // struct timespec *remain): the request pointer is args[2], not args[0] + // (which is the clockid). The sentinel -1 marks a missing/unreadable ptr. + requireContains(t, output, "ev->requested_ns = -1;") requireContains(t, output, "if (ctx->args[2] != 0) {") requireContains(t, output, "ev->requested_ns = ts.tv_sec * 1000000000LL + ts.tv_nsec;") } +// TestClockNanosleepExitHandlerIsUnclassifiedRet locks in that the exit side of +// clock_nanosleep records a plain ret_event with ret_type UNCLASSIFIED. The +// syscall returns 0 on success or a positive errno (and -1 only when invoked +// via the libc wrapper on error), never an fd or byte count, so UNCLASSIFIED is +// the correct return classification — same as its nanosleep sibling. +func TestClockNanosleepExitHandlerIsUnclassifiedRet(t *testing.T) { + output := generateFromPair(t, FormatClockNanosleep, FormatExitClockNanosleep) + + requireContains(t, output, "handle_sys_exit_clock_nanosleep") + requireContains(t, output, "ev->event_type = EXIT_RET_EVENT;") + requireContains(t, output, "ev->ret = ctx->ret;") + requireContains(t, output, "ev->ret_type = UNCLASSIFIED;") + // The exit handler must not try to read a timespec or treat ret as an fd. + requireNotContains(t, output, "handle_sys_exit_clock_nanosleep(struct syscall_trace_exit *ctx) {\n __u32 pid, tid;\n if (filter(&pid, &tid))\n return 0;\n\n if (!ior_on_syscall_exit(tid, SYS_ENTER_CLOCK_NANOSLEEP, ctx->ret))\n return 0;\n\n struct sleep_event") +} + func TestGenerateKeyctlHandler(t *testing.T) { output := GenerateTracepointsC(mustParseAll(t, syntheticPair("keyctl"))) |