replace all F_DUPFD_CLOEXEC with os_dupfd_cloexec()

All squashed into a single commit because it shouldn't have any
behaviour change, except that it might work now on platforms where it
was broken because F_DUPFD_CLOEXEC is not supported but FD_CLOEXEC is.

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5369>

src/egl/drivers/dri2/platform_android.c

@@ -39,6 +39,8 @@
 #include <sys/types.h>
 #include <drm-uapi/drm_fourcc.h>
 
+#include "util/os_file.h"
+
 #include "loader.h"
 #include "egl_dri2.h"
 #include "egl_dri2_fallbacks.h"
@@ -1505,7 +1507,7 @@ droid_open_device(_EGLDisplay *disp, bool swrast)
       return EGL_FALSE;
    }
 
-   dri2_dpy->fd = fcntl(fd, F_DUPFD_CLOEXEC, 3);
+   dri2_dpy->fd = os_dupfd_cloexec(fd);
    if (dri2_dpy->fd < 0)
       return EGL_FALSE;
 

src/egl/drivers/dri2/platform_drm.c

@@ -36,6 +36,8 @@
 #include <fcntl.h>
 #include <unistd.h>
 
+#include "util/os_file.h"
+
 #include "egl_dri2.h"
 #include "egl_dri2_fallbacks.h"
 #include "loader.h"
@@ -715,7 +717,7 @@ dri2_initialize_drm(_EGLDriver *drv, _EGLDisplay *disp)
       }
       dri2_dpy->own_device = true;
    } else {
-      dri2_dpy->fd = fcntl(gbm_device_get_fd(gbm), F_DUPFD_CLOEXEC, 3);
+      dri2_dpy->fd = os_dupfd_cloexec(gbm_device_get_fd(gbm));
       if (dri2_dpy->fd < 0) {
          err = "DRI2: failed to fcntl() existing gbm device";
          goto cleanup;

src/egl/main/egldisplay.c

@@ -39,6 +39,7 @@
 #include <fcntl.h>
 #include "c11/threads.h"
 #include "util/macros.h"
+#include "util/os_file.h"
 #include "util/u_atomic.h"
 
 #include "eglcontext.h"
@@ -618,7 +619,7 @@ _eglGetDeviceDisplay(void *native_display,
     * The new fd is guaranteed to be 3 or greater.
     */
    if (fd != -1 && display->Options.fd == 0) {
-      display->Options.fd = fcntl(fd, F_DUPFD_CLOEXEC, 3);
+      display->Options.fd = os_dupfd_cloexec(fd);
       if (display->Options.fd == -1) {
          /* Do not (really) need to teardown the display */
          _eglError(EGL_BAD_ALLOC, "eglGetPlatformDisplay");

src/freedreno/vulkan/tu_fence.c

@@ -27,6 +27,7 @@
 #include <libsync.h>
 #include <unistd.h>
 
+#include "util/os_file.h"
 #include "util/os_time.h"
 
 /**
@@ -126,7 +127,7 @@ tu_fence_copy(struct tu_fence *fence, const struct tu_fence *src)
    /* dup src->fd */
    int fd = -1;
    if (src->fd >= 0) {
-      fd = fcntl(src->fd, F_DUPFD_CLOEXEC, 0);
+      fd = os_dupfd_cloexec(src->fd);
       if (fd < 0) {
          tu_loge("failed to dup fd %d for fence", src->fd);
          sync_wait(src->fd, -1);

src/gallium/auxiliary/pipe-loader/pipe_loader_drm.c

@@ -42,6 +42,7 @@
 #include "frontend/drm_driver.h"
 #include "pipe_loader_priv.h"
 
+#include "util/os_file.h"
 #include "util/u_memory.h"
 #include "util/u_dl.h"
 #include "util/u_debug.h"
@@ -239,7 +240,7 @@ pipe_loader_drm_probe_fd(struct pipe_loader_device **dev, int fd)
    bool ret;
    int new_fd;
 
-   if (fd < 0 || (new_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3)) < 0)
+   if (fd < 0 || (new_fd = os_dupfd_cloexec(fd)) < 0)
      return false;
 
    ret = pipe_loader_drm_probe_fd_nodup(dev, new_fd);

src/gallium/auxiliary/pipe-loader/pipe_loader_sw.c

@@ -31,6 +31,7 @@
 
 #include "pipe_loader_priv.h"
 
+#include "util/os_file.h"
 #include "util/u_memory.h"
 #include "util/u_dl.h"
 #include "sw/dri/dri_sw_winsys.h"
@@ -175,7 +176,7 @@ pipe_loader_sw_probe_kms(struct pipe_loader_device **devs, int fd)
    if (!pipe_loader_sw_probe_init_common(sdev))
       goto fail;
 
-   if (fd < 0 || (sdev->fd = fcntl(fd, F_DUPFD_CLOEXEC, 3)) < 0)
+   if (fd < 0 || (sdev->fd = os_dupfd_cloexec(fd)) < 0)
       goto fail;
 
    for (i = 0; sdev->dd->winsys[i].name; i++) {

src/gallium/drivers/lima/lima_fence.c

@@ -25,6 +25,7 @@
 #include <fcntl.h>
 #include <libsync.h>
 
+#include "util/os_file.h"
 #include <util/u_memory.h>
 #include <util/u_inlines.h>
 
@@ -46,7 +47,7 @@ lima_create_fence_fd(struct pipe_context *pctx,
                      int fd, enum pipe_fd_type type)
 {
    assert(type == PIPE_FD_TYPE_NATIVE_SYNC);
-   *fence = lima_fence_create(fcntl(fd, F_DUPFD_CLOEXEC, 3));
+   *fence = lima_fence_create(os_dupfd_cloexec(fd));
 }
 
 static void
@@ -83,7 +84,7 @@ static int
 lima_fence_get_fd(struct pipe_screen *pscreen,
                   struct pipe_fence_handle *fence)
 {
-   return fcntl(fence->fd, F_DUPFD_CLOEXEC, 3);
+   return os_dupfd_cloexec(fence->fd);
 }
 
 static void

src/gallium/drivers/vc4/vc4_fence.c

@@ -37,6 +37,7 @@
 #include <libsync.h>
 #include <fcntl.h>
 
+#include "util/os_file.h"
 #include "util/u_inlines.h"
 
 #include "vc4_screen.h"
@@ -111,7 +112,7 @@ vc4_fence_create_fd(struct pipe_context *pctx, struct pipe_fence_handle **pf,
 
         assert(type == PIPE_FD_TYPE_NATIVE_SYNC);
         *fence = vc4_fence_create(vc4->screen, vc4->last_emit_seqno,
-                                  fcntl(fd, F_DUPFD_CLOEXEC, 3));
+                                  os_dupfd_cloexec(fd));
 }
 
 static void
@@ -130,7 +131,7 @@ vc4_fence_get_fd(struct pipe_screen *screen, struct pipe_fence_handle *pfence)
 {
         struct vc4_fence *fence = vc4_fence(pfence);
 
-        return fcntl(fence->fd, F_DUPFD_CLOEXEC, 3);
+        return os_dupfd_cloexec(fence->fd);
 }
 
 int

src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c

@@ -365,7 +365,7 @@ amdgpu_winsys_create(int fd, const struct pipe_screen_config *config,
       return NULL;
 
    pipe_reference_init(&ws->reference, 1);
-   ws->fd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
+   ws->fd = os_dupfd_cloexec(fd);
 
    /* Look up the winsys from the dev table. */
    simple_mtx_lock(&dev_tab_mutex);

src/gallium/winsys/iris/drm/iris_drm_winsys.c

@@ -24,11 +24,13 @@
 #include <unistd.h>
 #include <fcntl.h>
 
+#include "util/os_file.h"
+
 #include "iris_drm_public.h"
 extern struct pipe_screen *iris_screen_create(int fd, const struct pipe_screen_config *config);
 
 struct pipe_screen *
 iris_drm_screen_create(int fd, const struct pipe_screen_config *config)
 {
-   return iris_screen_create(fcntl(fd, F_DUPFD_CLOEXEC, 3), config);
+   return iris_screen_create(os_dupfd_cloexec(fd), config);
 }

src/gallium/winsys/lima/drm/lima_drm_winsys.c

@@ -26,6 +26,7 @@
 #include <sys/stat.h>
 
 #include "c11/threads.h"
+#include "util/os_file.h"
 #include "util/u_hash_table.h"
 #include "util/u_pointer.h"
 #include "renderonly/renderonly.h"
@@ -73,7 +74,7 @@ lima_drm_screen_create(int fd)
    if (pscreen) {
       lima_screen(pscreen)->refcnt++;
    } else {
-      int dup_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3);
+      int dup_fd = os_dupfd_cloexec(fd);
 
       pscreen = lima_screen_create(dup_fd, NULL);
       if (pscreen) {
@@ -96,5 +97,5 @@ unlock:
 struct pipe_screen *
 lima_drm_screen_create_renderonly(struct renderonly *ro)
 {
-   return lima_screen_create(fcntl(ro->gpu_fd, F_DUPFD_CLOEXEC, 3), ro);
+   return lima_screen_create(os_dupfd_cloexec(ro->gpu_fd), ro);
 }

src/gallium/winsys/nouveau/drm/nouveau_drm_winsys.c

@@ -4,6 +4,7 @@
 #include "pipe/p_context.h"
 #include "pipe/p_state.h"
 #include "util/format/u_format.h"
+#include "util/os_file.h"
 #include "util/u_memory.h"
 #include "util/u_inlines.h"
 #include "util/u_hash_table.h"
@@ -71,7 +72,7 @@ nouveau_drm_screen_create(int fd)
 	 * nouveau_device_wrap does not close the fd in case of a device
 	 * creation error.
 	 */
-	dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 3);
+	dupfd = os_dupfd_cloexec(fd);
 
 	ret = nouveau_drm_new(dupfd, &drm);
 	if (ret)

src/gallium/winsys/panfrost/drm/panfrost_drm_winsys.c

@@ -25,6 +25,8 @@
 #include <unistd.h>
 #include <fcntl.h>
 
+#include "util/os_file.h"
+
 #include "renderonly/renderonly.h"
 #include "panfrost_drm_public.h"
 #include "panfrost/pan_public.h"
@@ -32,11 +34,11 @@
 struct pipe_screen *
 panfrost_drm_screen_create(int fd)
 {
-   return panfrost_create_screen(fcntl(fd, F_DUPFD_CLOEXEC, 3), NULL);
+   return panfrost_create_screen(os_dupfd_cloexec(fd), NULL);
 }
 
 struct pipe_screen *
 panfrost_drm_screen_create_renderonly(struct renderonly *ro)
 {
-   return panfrost_create_screen(fcntl(ro->gpu_fd, F_DUPFD_CLOEXEC, 3), ro);
+   return panfrost_create_screen(os_dupfd_cloexec(ro->gpu_fd), ro);
 }

src/gallium/winsys/radeon/drm/radeon_drm_winsys.c

@@ -29,6 +29,7 @@
 #include "radeon_drm_cs.h"
 #include "radeon_drm_public.h"
 
+#include "util/os_file.h"
 #include "util/u_cpu_detect.h"
 #include "util/u_memory.h"
 #include "util/u_hash_table.h"
@@ -840,7 +841,7 @@ radeon_drm_winsys_create(int fd, const struct pipe_screen_config *config,
       return NULL;
    }
 
-   ws->fd = fcntl(fd, F_DUPFD_CLOEXEC, 3);
+   ws->fd = os_dupfd_cloexec(fd);
 
    if (!do_winsys_init(ws))
       goto fail1;

src/gallium/winsys/svga/drm/vmw_screen.c

@@ -28,6 +28,7 @@
 #include "vmw_fence.h"
 #include "vmw_context.h"
 
+#include "util/os_file.h"
 #include "util/u_memory.h"
 #include "pipe/p_compiler.h"
 #include "util/u_hash_table.h"
@@ -90,7 +91,7 @@ vmw_winsys_create( int fd )
 
    vws->device = stat_buf.st_rdev;
    vws->open_count = 1;
-   vws->ioctl.drm_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3);
+   vws->ioctl.drm_fd = os_dupfd_cloexec(fd);
    vws->force_coherent = FALSE;
    if (!vmw_ioctl_init(vws))
       goto out_no_ioctl;

src/gallium/winsys/tegra/drm/tegra_drm_winsys.c

@@ -23,6 +23,7 @@
 
 #include <fcntl.h>
 
+#include "util/os_file.h"
 #include "util/u_debug.h"
 
 #include "tegra/tegra_screen.h"
@@ -37,7 +38,7 @@ struct pipe_screen *tegra_drm_screen_create(int fd)
     * NOTE: There are reportedly issues with reusing the file descriptor
     * as-is related to Xinerama. Duplicate it to side-step any issues.
     */
-   fd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
+   fd = os_dupfd_cloexec(fd);
    if (fd < 0)
       return NULL;
 

src/gallium/winsys/v3d/drm/v3d_drm_winsys.c

@@ -24,6 +24,8 @@
 #include <unistd.h>
 #include <fcntl.h>
 
+#include "util/os_file.h"
+
 #include "v3d_drm_public.h"
 
 #include "v3d/v3d_screen.h"
@@ -31,7 +33,7 @@
 struct pipe_screen *
 v3d_drm_screen_create(int fd, const struct pipe_screen_config *config)
 {
-   return v3d_screen_create(fcntl(fd, F_DUPFD_CLOEXEC, 3), config, NULL);
+   return v3d_screen_create(os_dupfd_cloexec(fd), config, NULL);
 }
 
 struct pipe_screen *

src/gallium/winsys/vc4/drm/vc4_drm_winsys.c

@@ -25,6 +25,8 @@
 #include <fcntl.h>
 #include <sys/ioctl.h>
 
+#include "util/os_file.h"
+
 #include "renderonly/renderonly.h"
 #include "kmsro/drm/kmsro_drm_public.h"
 #include "vc4_drm_public.h"
@@ -46,7 +48,7 @@ vc4_drm_screen_create(int fd, const struct pipe_screen_config *config)
 #endif
 
    if (v3d_present)
-      return vc4_screen_create(fcntl(fd, F_DUPFD_CLOEXEC, 3), NULL);
+      return vc4_screen_create(os_dupfd_cloexec(fd), NULL);
 
 #ifdef GALLIUM_KMSRO
    return kmsro_drm_screen_create(fd, config);

src/gallium/winsys/virgl/drm/virgl_drm_winsys.c

@@ -29,6 +29,7 @@
 #include <sys/stat.h>
 
 #include "os/os_mman.h"
+#include "util/os_file.h"
 #include "util/os_time.h"
 #include "util/u_memory.h"
 #include "util/format/u_format.h"
@@ -1046,7 +1047,7 @@ virgl_drm_screen_create(int fd, const struct pipe_screen_config *config)
       virgl_screen(pscreen)->refcnt++;
    } else {
       struct virgl_winsys *vws;
-      int dup_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3);
+      int dup_fd = os_dupfd_cloexec(fd);
 
       vws = virgl_drm_winsys_create(dup_fd);
       if (!vws) {