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author | 2018-11-28 19:59:45 +0100 | |
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committer | 2018-11-28 20:57:18 +0100 | |
commit | 96cd0558bcd69481ccc42e1b392f0c0b36fce2b0 (patch) | |
tree | 9318349a9edfb5c5e6314c9bb560ff909511bbfc /support | |
parent | Do not copy glibc sources in build-many-glibcs.py. (diff) | |
download | glibc-96cd0558bcd69481ccc42e1b392f0c0b36fce2b0.tar.gz glibc-96cd0558bcd69481ccc42e1b392f0c0b36fce2b0.tar.bz2 glibc-96cd0558bcd69481ccc42e1b392f0c0b36fce2b0.zip |
support: Add signal support to support_capture_subprocess_check
Signal zero does not terminate a process, so it is safe to use negative
values for signal numbers.
Adjust libio/tst-vtables-common.c to use this new functionality,
instead of determining the termination status for a signal indirectly.
Diffstat (limited to 'support')
-rw-r--r-- | support/capture_subprocess.h | 15 | ||||
-rw-r--r-- | support/support_capture_subprocess_check.c | 41 | ||||
-rw-r--r-- | support/tst-support_capture_subprocess.c | 14 |
3 files changed, 59 insertions, 11 deletions
diff --git a/support/capture_subprocess.h b/support/capture_subprocess.h index b0886ba1d1..4734b877ad 100644 --- a/support/capture_subprocess.h +++ b/support/capture_subprocess.h @@ -49,13 +49,16 @@ enum support_capture_allow sc_allow_stderr = 0x04, }; -/* Check that the subprocess exited with STATUS and that only the - allowed outputs happened. ALLOWED is a combination of - support_capture_allow flags. Report errors under the CONTEXT - message. */ +/* Check that the subprocess exited and that only the allowed outputs + happened. If STATUS_OR_SIGNAL is nonnegative, it is the expected + (decoded) exit status of the process, as returned by WEXITSTATUS. + If STATUS_OR_SIGNAL is negative, -STATUS_OR_SIGNAL is the expected + termination signal, as returned by WTERMSIG. ALLOWED is a + combination of support_capture_allow flags. Report errors under + the CONTEXT message. */ void support_capture_subprocess_check (struct support_capture_subprocess *, - const char *context, int status, - int allowed) + const char *context, + int status_or_signal, int allowed) __attribute__ ((nonnull (1, 2))); #endif /* SUPPORT_CAPTURE_SUBPROCESS_H */ diff --git a/support/support_capture_subprocess_check.c b/support/support_capture_subprocess_check.c index ff5ee89fb0..8b4c352c96 100644 --- a/support/support_capture_subprocess_check.c +++ b/support/support_capture_subprocess_check.c @@ -20,6 +20,7 @@ #include <stdio.h> #include <support/capture_subprocess.h> #include <support/check.h> +#include <sys/wait.h> static void print_context (const char *context, bool *failed) @@ -31,9 +32,22 @@ print_context (const char *context, bool *failed) printf ("error: subprocess failed: %s\n", context); } +static void +print_actual_status (struct support_capture_subprocess *proc) +{ + if (WIFEXITED (proc->status)) + printf ("error: actual exit status: %d [0x%x]\n", + WEXITSTATUS (proc->status), proc->status); + else if (WIFSIGNALED (proc->status)) + printf ("error: actual termination signal: %d [0x%x]\n", + WTERMSIG (proc->status), proc->status); + else + printf ("error: actual undecoded exit status: [0x%x]\n", proc->status); +} + void support_capture_subprocess_check (struct support_capture_subprocess *proc, - const char *context, int status, + const char *context, int status_or_signal, int allowed) { TEST_VERIFY ((allowed & sc_allow_none) @@ -44,11 +58,28 @@ support_capture_subprocess_check (struct support_capture_subprocess *proc, || (allowed & sc_allow_stderr)))); bool failed = false; - if (proc->status != status) + if (status_or_signal >= 0) { - print_context (context, &failed); - printf ("error: expected exit status: %d\n", status); - printf ("error: actual exit status: %d\n", proc->status); + /* Expect regular termination. */ + if (!(WIFEXITED (proc->status) + && WEXITSTATUS (proc->status) == status_or_signal)) + { + print_context (context, &failed); + printf ("error: expected exit status: %d\n", status_or_signal); + print_actual_status (proc); + } + } + else + { + /* status_or_signal < 0. Expect termination by signal. */ + if (!(WIFSIGNALED (proc->status) + && WTERMSIG (proc->status) == -status_or_signal)) + { + print_context (context, &failed); + printf ("error: expected termination signal: %d\n", + -status_or_signal); + print_actual_status (proc); + } } if (!(allowed & sc_allow_stdout) && proc->out.length != 0) { diff --git a/support/tst-support_capture_subprocess.c b/support/tst-support_capture_subprocess.c index a685256091..5339e85b07 100644 --- a/support/tst-support_capture_subprocess.c +++ b/support/tst-support_capture_subprocess.c @@ -168,15 +168,29 @@ do_test (void) = support_capture_subprocess (callback, &test); check_stream ("stdout", &result.out, test.out); check_stream ("stderr", &result.err, test.err); + + /* Allowed output for support_capture_subprocess_check. */ + int check_allow = 0; + if (lengths[length_idx_stdout] > 0) + check_allow |= sc_allow_stdout; + if (lengths[length_idx_stderr] > 0) + check_allow |= sc_allow_stderr; + if (check_allow == 0) + check_allow = sc_allow_none; + if (test.signal != 0) { TEST_VERIFY (WIFSIGNALED (result.status)); TEST_VERIFY (WTERMSIG (result.status) == test.signal); + support_capture_subprocess_check (&result, "signal", + -SIGTERM, check_allow); } else { TEST_VERIFY (WIFEXITED (result.status)); TEST_VERIFY (WEXITSTATUS (result.status) == test.status); + support_capture_subprocess_check (&result, "exit", + test.status, check_allow); } support_capture_subprocess_free (&result); free (test.out); |