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authorAlexander Bulekov <alxndr@bu.edu>2020-05-11 23:01:30 -0400
committerStefan Hajnoczi <stefanha@redhat.com>2020-06-05 09:54:48 +0100
commit7a071a96d3ef48095892c1d1075c0181c8940058 (patch)
treefa65a01c0d7025d610749f54e6102e6c6ef664de /tests/qtest
parent769335ecb1e8fd9c4317bdff7cfd0f84af7ab2f9 (diff)
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fuzz: add datadir for oss-fuzz compatability
This allows us to keep pc-bios in executable_dir/pc-bios, rather than executable_dir/../pc-bios, which is incompatible with oss-fuzz' file structure. Signed-off-by: Alexander Bulekov <alxndr@bu.edu> Reviewed-by: Darren Kenny <darren.kenny@oracle.com> Message-id: 20200512030133.29896-2-alxndr@bu.edu Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'tests/qtest')
-rw-r--r--tests/qtest/fuzz/fuzz.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/tests/qtest/fuzz/fuzz.c b/tests/qtest/fuzz/fuzz.c
index f5c9238..33365c3 100644
--- a/tests/qtest/fuzz/fuzz.c
+++ b/tests/qtest/fuzz/fuzz.c
@@ -137,6 +137,7 @@ int LLVMFuzzerInitialize(int *argc, char ***argv, char ***envp)
{
char *target_name;
+ char *dir;
/* Initialize qgraph and modules */
qos_graph_init();
@@ -147,6 +148,20 @@ int LLVMFuzzerInitialize(int *argc, char ***argv, char ***envp)
target_name = strstr(**argv, "-target-");
if (target_name) { /* The binary name specifies the target */
target_name += strlen("-target-");
+ /*
+ * With oss-fuzz, the executable is kept in the root of a directory (we
+ * cannot assume the path). All data (including bios binaries) must be
+ * in the same dir, or a subdir. Thus, we cannot place the pc-bios so
+ * that it would be in exec_dir/../pc-bios.
+ * As a workaround, oss-fuzz allows us to use argv[0] to get the
+ * location of the executable. Using this we add exec_dir/pc-bios to
+ * the datadirs.
+ */
+ dir = g_build_filename(g_path_get_dirname(**argv), "pc-bios", NULL);
+ if (g_file_test(dir, G_FILE_TEST_IS_DIR)) {
+ qemu_add_data_dir(dir);
+ }
+ g_free(dir);
} else if (*argc > 1) { /* The target is specified as an argument */
target_name = (*argv)[1];
if (!strstr(target_name, "--fuzz-target=")) {