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Avoid using LFS64 interfaces with Musl

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This commit is contained in:
Cameron Gutman 2023-09-18 20:07:56 -05:00
parent 1df0da4d4a
commit 654be492a0
3 changed files with 10 additions and 6 deletions
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6
app/masterhook.c
View file

@ -34,7 +34,7 @@
// Qt's DRM master FD grabbed by our hook
int g_QtDrmMasterFd = -1;
struct stat64 g_DrmMasterStat;
struct stat g_DrmMasterStat;
// The DRM master FD created for SDL
int g_SdlDrmMasterFd = -1;
@ -55,7 +55,7 @@ int drmModeSetCrtc(int fd, uint32_t crtcId, uint32_t bufferId,
// EGLFS backend's DRM FD, on which we will call drmDropMaster() later.
if (g_QtDrmMasterFd == -1 && drmIsMaster(fd)) {
g_QtDrmMasterFd = fd;
fstat64(g_QtDrmMasterFd, &g_DrmMasterStat);
fstat(g_QtDrmMasterFd, &g_DrmMasterStat);
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Captured Qt EGLFS DRM master fd (legacy): %d",
g_QtDrmMasterFd);
@ -73,7 +73,7 @@ int drmModeAtomicCommit(int fd, drmModeAtomicReqPtr req,
// EGLFS backend's DRM FD, on which we will call drmDropMaster() later.
if (g_QtDrmMasterFd == -1 && drmIsMaster(fd)) {
g_QtDrmMasterFd = fd;
fstat64(g_QtDrmMasterFd, &g_DrmMasterStat);
fstat(g_QtDrmMasterFd, &g_DrmMasterStat);
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Captured Qt EGLFS DRM master fd (atomic): %d",
g_QtDrmMasterFd);

6
app/masterhook_internal.c
View file

@ -27,7 +27,7 @@
#if SDL_VERSION_ATLEAST(2, 0, 15)
extern int g_QtDrmMasterFd;
extern struct stat64 g_DrmMasterStat;
extern struct stat g_DrmMasterStat;
extern int g_SdlDrmMasterFd;
int openHook(const char *funcname, const char *pathname, int flags, va_list va)
@ -50,9 +50,9 @@ int openHook(const char *funcname, const char *pathname, int flags, va_list va)
if (fd >= 0 && g_QtDrmMasterFd != -1) {
if (strncmp(pathname, "/dev/dri/card", 13) == 0) {
// It's a DRM device, but is it _our_ DRM device?
struct stat64 fdstat;
struct stat fdstat;
fstat64(fd, &fdstat);
fstat(fd, &fdstat);
if (g_DrmMasterStat.st_dev == fdstat.st_dev &&
g_DrmMasterStat.st_ino == fdstat.st_ino) {
// It is our device. Time to do the magic!

4
app/streaming/video/ffmpeg-renderers/drm.cpp
View file

@ -746,7 +746,11 @@ bool DrmRenderer::mapSoftwareFrame(AVFrame *frame, AVDRMFrameDescriptor *mappedF
// This leads to issues when DRM_IOCTL_MODE_MAP_DUMB returns a > 4GB offset. The high bits are
// chopped off when passed via the normal mmap() call using 32-bit off_t. We avoid this issue
// by explicitly calling mmap64() to ensure the 64-bit offset is never truncated.
#if defined(__GLIBC__) && QT_POINTER_SIZE == 4
drmFrame->mapping = (uint8_t*)mmap64(nullptr, drmFrame->size, PROT_WRITE, MAP_SHARED, m_DrmFd, mapBuf.offset);
#else
drmFrame->mapping = (uint8_t*)mmap(nullptr, drmFrame->size, PROT_WRITE, MAP_SHARED, m_DrmFd, mapBuf.offset);
#endif
if (drmFrame->mapping == MAP_FAILED) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"mmap() failed for dumb buffer: %d",