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| author | Alexander Bulekov | 2021-01-17 21:10:14 +0100 |
|---|---|---|
| committer | Paolo Bonzini | 2021-02-08 14:43:54 +0100 |
| commit | 61f90e0461984438ddd5064d1c03133f561dc848 (patch) | |
| tree | e11bf6602d6d91883133d0cd4a20f57ad3b96ab5 | |
| parent | docs/fuzz: fix pre-meson path (diff) | |
| download | qemu-61f90e0461984438ddd5064d1c03133f561dc848.tar.gz qemu-61f90e0461984438ddd5064d1c03133f561dc848.tar.xz qemu-61f90e0461984438ddd5064d1c03133f561dc848.zip | |
fuzz: log the arguments used to initialize QEMU
This is useful for building reproducers. Instead checking the code or
the QEMU_FUZZ_ARGS, the arguments are at the top of the crash log.
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210117201014.271610-3-alxndr@bu.edu>
| -rw-r--r-- | tests/qtest/fuzz/fuzz.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/tests/qtest/fuzz/fuzz.c b/tests/qtest/fuzz/fuzz.c index 238866a037..496d11a231 100644 --- a/tests/qtest/fuzz/fuzz.c +++ b/tests/qtest/fuzz/fuzz.c @@ -159,6 +159,8 @@ int LLVMFuzzerInitialize(int *argc, char ***argv, char ***envp) char *target_name; const char *bindir; char *datadir; + GString *cmd_line; + gchar *pretty_cmd_line; bool serialize = false; /* Initialize qgraph and modules */ @@ -217,7 +219,7 @@ int LLVMFuzzerInitialize(int *argc, char ***argv, char ***envp) } /* Run QEMU's softmmu main with the fuzz-target dependent arguments */ - GString *cmd_line = fuzz_target->get_init_cmdline(fuzz_target); + cmd_line = fuzz_target->get_init_cmdline(fuzz_target); g_string_append_printf(cmd_line, " %s -qtest /dev/null ", getenv("QTEST_LOG") ? "" : "-qtest-log none"); @@ -226,6 +228,13 @@ int LLVMFuzzerInitialize(int *argc, char ***argv, char ***envp) wordexp(cmd_line->str, &result, 0); g_string_free(cmd_line, true); + if (getenv("QTEST_LOG")) { + pretty_cmd_line = g_strjoinv(" ", result.we_wordv + 1); + printf("Starting %s with Arguments: %s\n", + result.we_wordv[0], pretty_cmd_line); + g_free(pretty_cmd_line); + } + qemu_init(result.we_wordc, result.we_wordv, NULL); /* re-enable the rcu atfork, which was previously disabled in qemu_init */ |