os: unexport internal logging functions

Lots of logging functions, especially init and teardown aren't called
by any drivers/modules, so no need to keep them exported.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>

Xext/shm.c

@@ -48,6 +48,7 @@ in this Software without prior written authorization from The Open Group.
 #include "os/auth.h"
 #include "os/busfault.h"
 #include "os/client_priv.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 #include "Xext/panoramiX.h"
 #include "Xext/panoramiXsrv.h"

Xext/vidmode.c

@@ -36,6 +36,9 @@ from Kaleb S. KEITHLEY
 #include <X11/X.h>
 #include <X11/Xproto.h>
 #include <X11/extensions/xf86vmproto.h>
+
+#include "os/log_priv.h"
+
 #include "misc.h"
 #include "dixstruct.h"
 #include "extnsionst.h"

Xi/exevents.c

@@ -98,6 +98,7 @@ SOFTWARE.
 #include "dix/input_priv.h"
 #include "dix/resource_priv.h"
 #include "mi/mi_priv.h"
+#include "os/log_priv.h"
 #include "xkb/xkbsrv_priv.h"
 
 #include "inputstr.h"

config/dbus-core.c

@@ -28,6 +28,8 @@
 #include <dbus/dbus.h>
 #include <sys/select.h>
 
+#include "os/log_priv.h"
+
 #include "dix.h"
 #include "os.h"
 

dix/devices.c

@@ -63,6 +63,7 @@ SOFTWARE.
 #include "dix/resource_priv.h"
 #include "mi/mi_priv.h"
 #include "os/bug_priv.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 #include "xkb/xkbsrv_priv.h"
 

dix/dixfonts.c

@@ -61,6 +61,7 @@ Equipment Corporation.
 #include "dix/gc_priv.h"
 #include "include/swaprep.h"
 #include "os/auth.h"
+#include "os/log_priv.h"
 
 #include "scrnintstr.h"
 #include "resource.h"

dix/events.c

@@ -130,6 +130,7 @@ Equipment Corporation.
 #include "os/bug_priv.h"
 #include "os/client_priv.h"
 #include "os/fmt.h"
+#include "os/log_priv.h"
 #include "Xext/panoramiX.h"
 #include "Xext/panoramiXsrv.h"
 #include "xkb/xkbsrv_priv.h"

dix/touch.c

@@ -34,6 +34,7 @@
 #include "dix/resource_priv.h"
 #include "mi/mi_priv.h"
 #include "os/bug_priv.h"
+#include "os/log_priv.h"
 
 #include "inputstr.h"
 #include "scrnintstr.h"

hw/kdrive/ephyr/ephyrinit.c

@@ -28,6 +28,7 @@
 #include "dix/dix_priv.h"
 #include "os/cmdline.h"
 #include "os/ddx_priv.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 
 #include "ephyr.h"

hw/xfree86/common/xf86Config.c

@@ -51,6 +51,7 @@
 #include <grp.h>
 
 #include "dix/resource_priv.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 #include "xkb/xkbsrv_priv.h"
 

hw/xfree86/common/xf86Events.c

@@ -65,6 +65,7 @@
 #include "dix/input_priv.h"
 #include "include/property.h"
 #include "mi/mi_priv.h"
+#include "os/log_priv.h"
 
 #include "misc.h"
 #include "xf86.h"

hw/xfree86/common/xf86Helper.c

@@ -44,6 +44,7 @@
 #include "dix/dix_priv.h"
 #include "dix/input_priv.h"
 #include "mi/mi_priv.h"
+#include "os/log_priv.h"
 
 #include "os.h"
 #include "servermd.h"

hw/xfree86/common/xf86Init.c

@@ -58,6 +58,7 @@
 #include "mi/mi_priv.h"
 #include "os/cmdline.h"
 #include "os/ddx_priv.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 #include "randr/randrstr_priv.h"
 

hw/xfree86/common/xf86Mode.c

@@ -85,6 +85,9 @@
 #endif
 
 #include <X11/X.h>
+
+#include "os/log_priv.h"
+
 #include "xf86Modes.h"
 #include "xf86Crtc.h"
 #include "os.h"

hw/xfree86/common/xf86VidMode.c

@@ -39,6 +39,9 @@
 #endif
 
 #include <X11/X.h>
+
+#include "os/log_priv.h"
+
 #include "os.h"
 #include "xf86.h"
 #include "xf86Priv.h"

hw/xfree86/common/xf86fbman.c

@@ -31,16 +31,16 @@
 
 #include "dix/screen_hooks_priv.h"
 
+#include <X11/X.h>
+
+#include "os/log_priv.h"
+
 #include "misc.h"
 #include "xf86.h"
 #include "scrnintstr.h"
 #include "regionstr.h"
 #include "xf86fbman.h"
 
-/*
-#define DEBUG
-*/
-
 typedef struct {
     FBAreaPtr(*AllocateOffscreenArea) (ScreenPtr pScreen,
                                        int w, int h,

hw/xfree86/common/xf86pciBus.c

@@ -35,8 +35,11 @@
 #include <ctype.h>
 #include <stdlib.h>
 #include <unistd.h>
-#include <X11/X.h>
 #include <pciaccess.h>
+#include <X11/X.h>
+
+#include "os/log_priv.h"
+
 #include "os.h"
 #include "Pci.h"
 #include "xf86.h"

hw/xfree86/int10/vbeModes.c

@@ -36,6 +36,8 @@
 #include <stdio.h>
 #include <string.h>
 
+#include "os/log_priv.h"
+
 #include "xf86.h"
 #include "vbe.h"
 #include "vbeModes.h"

hw/xfree86/os-support/linux/lnx_acpi.c

@@ -10,6 +10,8 @@
 #include <fcntl.h>
 #include <errno.h>
 
+#include "os/log_priv.h"
+
 #include "os.h"
 #include "xf86.h"
 #include "xf86Priv.h"

hw/xfree86/os-support/linux/lnx_apm.c

@@ -4,6 +4,9 @@
 #endif
 
 #include <X11/X.h>
+
+#include "os/log_priv.h"
+
 #include "os.h"
 #include "xf86.h"
 #include "xf86Priv.h"

hw/xfree86/os-support/shared/posix_tty.c

@@ -59,6 +59,7 @@
 #include <errno.h>
 #include <X11/X.h>
 
+#include "os/log_priv.h"
 #include "os/xserver_poll.h"
 
 #include "xf86.h"

hw/xfree86/vgahw/vgaHW.c

@@ -16,6 +16,9 @@
 #include <unistd.h>
 
 #include <X11/X.h>
+
+#include "os/log_priv.h"
+
 #include "misc.h"
 
 #include "xf86.h"

hw/xquartz/darwin.c

@@ -36,6 +36,7 @@
 
 #include "miext/extinit_priv.h"
 #include "os/ddx_priv.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 
 #include "os.h"

hw/xwayland/xwayland-dmabuf.c

@@ -30,6 +30,8 @@
 #include <drm_fourcc.h>
 #include <wayland-util.h>
 
+#include "os/log_priv.h"
+
 #include "xwayland-dmabuf.h"
 #include "xwayland-glamor-gbm.h"
 #include "xwayland-screen.h"

hw/xwayland/xwayland-input.c

@@ -35,6 +35,7 @@
 #include "mi/mi_priv.h"
 #include "mi/mipointer_priv.h"
 #include "os/bug_priv.h"
+#include "os/log_priv.h"
 #include "xkb/xkbsrv_priv.h"
 
 #include <inputstr.h>

hw/xwayland/xwayland-output.c

@@ -33,6 +33,7 @@
 #include "dix/input_priv.h"
 #include "dix/resource_priv.h"
 #include "randr/randrstr_priv.h"
+#include "os/log_priv.h"
 
 #include "xwayland-cvt.h"
 #include "xwayland-output.h"

hw/xwayland/xwayland-screen.c

@@ -43,6 +43,7 @@
 #include "dix/screen_hooks_priv.h"
 #include "miext/extinit_priv.h"
 #include "os/client_priv.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 #include "os/xserver_poll.h"
 

hw/xwayland/xwayland-window.c

@@ -35,6 +35,7 @@
 #include "dix/dix_priv.h"
 #include "dix/property_priv.h"
 #include "dix/resource_priv.h"
+#include "os/log_priv.h"
 
 #include "compositeext.h"
 #include "compint.h"

hw/xwayland/xwayland-xtest.c

@@ -33,6 +33,7 @@
 #include "dix/dix_priv.h"
 #include "dix/input_priv.h"
 #include "os/client_priv.h"
+#include "os/log_priv.h"
 
 #include <inputstr.h>
 #include <inpututils.h>

hw/xwayland/xwayland.c

@@ -43,6 +43,7 @@
 #include "os/client_priv.h"
 #include "os/ddx_priv.h"
 #include "os/fmt.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 #include "os/xserver_poll.h"
 

hw/xwin/InitOutput.c

@@ -38,6 +38,7 @@ from The Open Group.
 #include "dix/screenint_priv.h"
 #include "miext/extinit_priv.h"
 #include "os/ddx_priv.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 #include "xkb/xkbsrv_priv.h"
 

hw/xwin/winerror.c

@@ -32,6 +32,7 @@
 #include <xwin-config.h>
 #endif
 
+#include "os/log_priv.h"
 #include "os/osdep.h"
 
 #include <../xfree86/common/xorgVersion.h>

include/os.h

@@ -269,13 +269,6 @@ extern _X_EXPORT int
 timingsafe_memcmp(const void *b1, const void *b2, size_t len);
 #endif
 
-/* Logging. */
-typedef enum _LogParameter {
-    XLOG_SYNC,
-    XLOG_VERBOSITY,
-    XLOG_FILE_VERBOSITY
-} LogParameter;
-
 /* Flags for log messages. */
 typedef enum {
     X_PROBED,                   /* Value was probed */
@@ -292,14 +285,6 @@ typedef enum {
     X_UNKNOWN = -1              /* unknown -- this must always be last */
 } MessageType;
 
-extern _X_EXPORT const char *
-LogInit(const char *fname, const char *backup);
-extern void
-LogSetDisplay(void);
-extern _X_EXPORT void
-LogClose(enum ExitCode error);
-extern _X_EXPORT Bool
-LogSetParameter(LogParameter param, int value);
 extern _X_EXPORT void
 LogVMessageVerb(MessageType type, int verb, const char *format, va_list args)
 _X_ATTRIBUTE_PRINTF(3, 0);
@@ -310,7 +295,7 @@ extern _X_EXPORT void
 LogMessage(MessageType type, const char *format, ...)
 _X_ATTRIBUTE_PRINTF(2, 3);
 
-extern _X_EXPORT void
+void
 LogVHdrMessageVerb(MessageType type, int verb,
                    const char *msg_format, va_list msg_args,
                    const char *hdr_format, va_list hdr_args)
@@ -328,17 +313,11 @@ FatalError(const char *f, ...)
 _X_ATTRIBUTE_PRINTF(1, 2)
     _X_NORETURN;
 
-#ifdef DEBUG
-#define DebugF ErrorF
-#else
-#define DebugF(...)             /* */
-#endif
-
 extern _X_EXPORT void
 ErrorF(const char *f, ...)
 _X_ATTRIBUTE_PRINTF(1, 2);
-extern _X_EXPORT void
-LogPrintMarkers(void);
+
+void LogPrintMarkers(void);
 
 extern _X_EXPORT void
 xorg_backtrace(void);

os/client.c

@@ -87,6 +87,7 @@
 #endif
 
 #include "os/auth.h"
+#include "os/log_priv.h"
 
 /**
  * Try to determine a PID for a client from its connection

os/connection.c

@@ -98,6 +98,7 @@ SOFTWARE.
 #include "os/audit.h"
 #include "os/auth.h"
 #include "os/client_priv.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 
 #include "misc.h"               /* for typedef of pointer */

os/inputthread.c

@@ -35,6 +35,7 @@
 
 #include "dix/input_priv.h"
 #include "os/ddx_priv.h"
+#include "os/log_priv.h"
 
 #include "inputstr.h"
 #include "opaque.h"

os/log.c

@@ -94,6 +94,7 @@ OR PERFORMANCE OF THIS SOFTWARE.
 #include "os/bug_priv.h"
 #include "os/ddx_priv.h"
 #include "os/fmt.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 
 #include "opaque.h"
@@ -309,7 +310,7 @@ LogClose(enum ExitCode error)
     }
 }
 
-Bool
+int
 LogSetParameter(LogParameter param, int value)
 {
     switch (param) {

os/log_priv.h

@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: MIT OR X11
+ *
+ * Copyright © 2024 Enrico Weigelt, metux IT consult <info@metux.net>
+ */
+#ifndef __XORG_OS_LOGGING_H
+#define __XORG_OS_LOGGING_H
+
+#include "include/os.h"
+
+/**
+ * @brief initialize logging and open log files
+ *
+ * Make backup of existing log file, create a new one and open it for logging.
+ *
+ * - May be called with NULL or "", if no logging is desired.
+ *
+ * - Must always be called, otherwise log messages will fill up the buffer and
+ *   let it grow infinitely.
+ *
+ * - if "%s" is present in fname, it will be replaced with the display string or pid
+ *
+ * @param fname log file name template. if NULL, dont write any log.
+ * @param backup name for the old logfile.
+ * @return new log file name
+ */
+const char* LogInit(const char *fname, const char *backup);
+
+/**
+ * @brief rename the current log file according display name
+ *
+ * Renames the current log file with per display prefix (e.g. "Xorg.log.0")
+ *
+ */
+void LogSetDisplay(void);
+
+/**
+ * @brief log exit code, then flush and close log file and write
+ *
+ * Logs the exit code (and success/error state), then flush and close log file.
+ */
+void LogClose(enum ExitCode error);
+
+/* @brief parameters for LogSetParameter() */
+typedef enum {
+    XLOG_SYNC,            /* enable/disable fsync() after each log file write */
+    XLOG_VERBOSITY,       /* set console log verbosity */
+    XLOG_FILE_VERBOSITY,  /* set log file verbosity */
+} LogParameter;
+
+/**
+ * @brief set log file paremeters
+ *
+ * Set various (int) logging parameters, eg. verbosity.
+ * See XLOG_* defines
+ *
+ * @param ID of the parameter to set
+ * @param value the new value
+ * @result TRUE if successful
+ */
+int LogSetParameter(LogParameter param, int value);
+
+#ifdef DEBUG
+/**
+ * @brief log debug messages (like errors) if symbol DEBUG is defined
+ */
+#define DebugF ErrorF
+#else
+#define DebugF(...)             /* */
+#endif
+
+#endif /* __XORG_OS_LOGGING_H */

os/osinit.c

@@ -60,6 +60,7 @@ SOFTWARE.
 
 #include "dix/dix_priv.h"
 #include "os/busfault.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 #include "os/serverlock.h"
 

os/utils.c

@@ -67,9 +67,6 @@ OR PERFORMANCE OF THIS SOFTWARE.
 #define TRANS_REOPEN
 #include <X11/Xtrans/Xtrans.h>
 
-#include "os/audit.h"
-#include "os/client_priv.h"
-
 #include "input.h"
 #include "dixfont.h"
 #include <X11/fonts/libxfont2.h>
@@ -97,10 +94,13 @@ OR PERFORMANCE OF THIS SOFTWARE.
 #include "dix/dix_priv.h"
 #include "dix/input_priv.h"
 #include "miext/extinit_priv.h"
+#include "os/audit.h"
 #include "os/auth.h"
 #include "os/bug_priv.h"
 #include "os/cmdline.h"
+#include "os/client_priv.h"
 #include "os/ddx_priv.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 #include "os/serverlock.h"
 #include "xkb/xkbsrv_priv.h"

test/signal-logging.c

@@ -30,6 +30,7 @@
 #include <unistd.h>
 
 #include "os/fmt.h"
+#include "os/log_priv.h"
 
 #include "assert.h"
 #include "misc.h"

xkb/XKBMAlloc.c

@@ -31,6 +31,7 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #include <X11/Xproto.h>
 #include <X11/keysym.h>
 
+#include "os/log_priv.h"
 #include "xkb/xkbsrv_priv.h"
 
 #include "misc.h"

xkb/ddxLoad.c

@@ -39,6 +39,7 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #include <X11/extensions/XKM.h>
 
 #include "dix/dix_priv.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 #include "xkb/xkbfile_priv.h"
 #include "xkb/xkbfmisc_priv.h"

xkb/maprules.c

@@ -41,6 +41,7 @@
 #include <X11/Xatom.h>
 #include <X11/keysym.h>
 
+#include "os/log_priv.h"
 #include "xkb/xkbrules_priv.h"
 
 #include "misc.h"

xkb/xkbAccessX.c

@@ -37,6 +37,7 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #include <X11/extensions/XIproto.h>
 
 #include "dix/input_priv.h"
+#include "os/log_priv.h"
 #include "xkb/xkbsrv_priv.h"
 
 #include "exglobals.h"

xkb/xkbEvents.c

@@ -35,6 +35,7 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 #include "dix/exevents_priv.h"
 #include "dix/input_priv.h"
+#include "os/log_priv.h"
 #include "xkb/xkbsrv_priv.h"
 
 #include "inputstr.h"

xkb/xkbInit.c

@@ -41,6 +41,7 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 #include "os/bug_priv.h"
 #include "os/cmdline.h"
+#include "os/log_priv.h"
 #include "xkb/xkbsrv_priv.h"
 
 #include "misc.h"

xkb/xkbPrKeyEv.c

@@ -34,6 +34,7 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #include <X11/keysym.h>
 
 #include "dix/input_priv.h"
+#include "os/log_priv.h"
 #include "xkb/xkbsrv_priv.h"
 
 #include "misc.h"

xkb/xkbUtils.c

@@ -59,6 +59,7 @@ DEALINGS IN THE SOFTWARE.
 #include <X11/keysym.h>
 
 #include "dix/input_priv.h"
+#include "os/log_priv.h"
 #include "xkb/xkbsrv_priv.h"
 
 #include "os.h"

xkb/xkmread.c

@@ -34,6 +34,7 @@
 #include <X11/keysym.h>
 #include <X11/extensions/XKMformat.h>
 
+#include "os/log_priv.h"
 #include "xkb/xkbfile_priv.h"
 #include "xkb/xkbfmisc_priv.h"
 #include "xkb/xkbsrv_priv.h"