Allow specifying the kernel module configuration via environment
variables. This allows enumerating the subtests of the kselftest
wrappers from sysroot directory.
IGT_KMOD_CONFIG_PATHS="" \
IGT_KMOD_DIRNAME="/path/to/sysroot/lib/modules/X.Y.Z" \
tests/drm_mm --list-subtests
Signed-off-by: Joonas Lahtinen <[email protected]>
Cc: Chris Wilson <[email protected]>
Cc: Petri Latvala <[email protected]>
Cc: Arkadiusz Hiler <[email protected]>
Cc: Daniel Vetter <[email protected]>
---
lib/igt_kmod.c | 44 ++++++++++++++++++++++++++++++++++++++++----
1 file changed, 40 insertions(+), 4 deletions(-)
diff --git a/lib/igt_kmod.c b/lib/igt_kmod.c
index 58624cd1..f468a4da 100644
--- a/lib/igt_kmod.c
+++ b/lib/igt_kmod.c
@@ -56,14 +56,50 @@ static void squelch(void *data, int priority,
static struct kmod_ctx *kmod_ctx(void)
{
static struct kmod_ctx *ctx;
+ const char **config_paths = NULL;
+ char *config_paths_str;
+ char *dirname;
+
+ if (ctx)
+ goto out;
+
+ dirname = getenv("IGT_KMOD_DIRNAME");
+ if (dirname)
+ igt_debug("kmod dirname = %s\n", dirname);
+
+ config_paths_str = getenv("IGT_KMOD_CONFIG_PATHS");
+ if (config_paths_str)
+ igt_debug("kmod config paths = %s\n", config_paths_str);
+
+ if (config_paths_str) {
+ unsigned count = !!strlen(config_paths_str);
+ unsigned i;
+ char* p;
+
+ p = config_paths_str;
+ while ((p = strchr(p, ':'))) p++, count++;
- if (!ctx) {
- ctx = kmod_new(NULL, NULL);
- igt_assert(ctx != NULL);
- kmod_set_log_fn(ctx, squelch, NULL);
+ config_paths = malloc(sizeof(*config_paths) * (count + 1));
+ igt_assert(config_paths != NULL);
+
+ p = config_paths_str;
+ for (i = 0; i < count; ++i) {
+ config_paths[i] = p;
+
+ if ((p = strchr(p, ':')))
+ *p++ = '\0';
+ }
+ config_paths[i] = NULL;
}
+ ctx = kmod_new(dirname, config_paths);
+ igt_assert(ctx != NULL);
+
+ free(config_paths);
+
+ kmod_set_log_fn(ctx, squelch, NULL);
+out:
return ctx;
}
--
2.13.5
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