From ebf67ee4b1c4973f73eca9d97deacd0050b9ba96 Mon Sep 17 00:00:00 2001 From: Jeffy Chen Date: Wed, 12 Jan 2022 11:42:19 +0800 Subject: [PATCH 4/4] HACK: Bypass drmSetInterfaceVersion and drmGetBusid by default A few versions of Mali GBM winsys would try to call those APIs. Set env "DRM_ALLOW_SET_VERSION" and "DRM_ALLOW_GET_BUSID" to enable it. Signed-off-by: Jeffy Chen --- xf86drm.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/xf86drm.c b/xf86drm.c index d6afb70..0476cc5 100644 --- a/xf86drm.c +++ b/xf86drm.c @@ -1432,6 +1432,9 @@ drm_public char *drmGetBusid(int fd) { drm_unique_t u; + if (!getenv("DRM_ALLOW_GET_BUSID")) + return strdup("libdrm-fake-busid"); + memclear(u); if (drmIoctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) @@ -2988,6 +2991,9 @@ drm_public int drmSetInterfaceVersion(int fd, drmSetVersion *version) int retcode = 0; drm_set_version_t sv; + if (!getenv("DRM_ALLOW_SET_VERSION")) + return 0; + memclear(sv); sv.drm_di_major = version->drm_di_major; sv.drm_di_minor = version->drm_di_minor; -- 2.20.1