From fc8f37239f3af088819c18f5632b2608954af73a Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Wed, 4 Jul 2012 10:36:18 +0200
Subject: mesa xserver git update 4 Jul 2012
---
xorg-server/configure.ac | 20 +++
xorg-server/dix/dixfonts.c | 9 ++
xorg-server/dix/getevents.c | 4 +-
xorg-server/dix/touch.c | 5 +-
xorg-server/hw/xfree86/Makefile.am | 6 +-
xorg-server/hw/xfree86/common/xf86Init.c | 14 +-
xorg-server/hw/xfree86/common/xf86Module.h | 2 +-
xorg-server/hw/xfree86/common/xf86Xinput.h | 6 +-
xorg-server/hw/xfree86/dri/Makefile.am | 2 +-
xorg-server/hw/xfree86/dri2/Makefile.am | 2 +-
xorg-server/hw/xfree86/i2c/Makefile.am | 5 +-
xorg-server/hw/xfree86/loader/loader.c | 2 +-
xorg-server/hw/xfree86/loader/loadmod.c | 5 +-
xorg-server/hw/xfree86/os-support/shared/sigio.c | 4 +
xorg-server/hw/xfree86/xaa/Makefile.am | 3 +-
xorg-server/include/dixfont.h | 13 +-
xorg-server/include/globals.h | 3 +
xorg-server/include/misc.h | 10 +-
xorg-server/include/os.h | 13 ++
xorg-server/mi/mieq.c | 19 ++-
xorg-server/os/backtrace.c | 49 ++++---
xorg-server/os/log.c | 175 ++++++++++++++++++++++-
xorg-server/os/osinit.c | 8 +-
xorg-server/os/utils.c | 46 ++++++
xorg-server/test/.gitignore | 1 +
xorg-server/test/Makefile.am | 3 +-
xorg-server/test/signal-logging.c | 115 +++++++++++++++
27 files changed, 467 insertions(+), 77 deletions(-)
create mode 100644 xorg-server/test/signal-logging.c
(limited to 'xorg-server')
diff --git a/xorg-server/configure.ac b/xorg-server/configure.ac
index 7576dae1d..d5ddf6e10 100644
--- a/xorg-server/configure.ac
+++ b/xorg-server/configure.ac
@@ -1499,6 +1499,26 @@ case "$host_os" in
XORG_DRIVER_LIBS="-lXorg.exe -L\${moduledir} -lshadow -lfb -no-undefined"
CYGWIN=yes
;;
+ solaris*)
+ # We use AC_LINK_IFELSE to generate a temporary program conftest$EXEEXT
+ # that we can link against for testing if the system linker is new
+ # enough to support -z parent=<program> for verifying loadable modules
+ # are only calling functions defined in either the loading program or
+ # the libraries they're linked with.
+ AC_LINK_IFELSE(
+ [AC_LANG_SOURCE([int main(int argc, char **argv) { return 0; }])],
+ [mv conftest$EXEEXT conftest.parent
+ XORG_CHECK_LINKER_FLAGS([-Wl,-z,parent=conftest.parent -G],
+ [LD_NO_UNDEFINED_FLAG="-Wl,-z,defs -Wl,-z,parent=\$(top_builddir)/hw/xfree86/Xorg"
+# Not set yet, since this gets exported in xorg-server.pc to all the drivers,
+# and they're not all fixed to build correctly with it yet.
+# XORG_DRIVER_LIBS="-Wl,-z,defs -Wl,-z,parent=${bindir}/Xorg"
+ ],[],
+ [AC_LANG_SOURCE([extern int main(int argc, char **argv);
+ int call_main(void) { return main(0, NULL); }])])
+ rm -f conftest.parent
+ ])
+ ;;
esac
AC_SUBST([LD_EXPORT_SYMBOLS_FLAG])
AC_SUBST([LD_NO_UNDEFINED_FLAG])
diff --git a/xorg-server/dix/dixfonts.c b/xorg-server/dix/dixfonts.c
index 19fd31e3e..dd9331195 100644
--- a/xorg-server/dix/dixfonts.c
+++ b/xorg-server/dix/dixfonts.c
@@ -115,6 +115,15 @@ LoadGlyphs(ClientPtr client, FontPtr pfont, unsigned nchars, int item_size,
return Successful;
}
+void
+dixGetGlyphs(FontPtr font, unsigned long count, unsigned char *chars,
+ FontEncoding fontEncoding,
+ unsigned long *glyphcount, /* RETURN */
+ CharInfoPtr *glyphs) /* RETURN */
+{
+ (*font->get_glyphs) (font, count, chars, fontEncoding, glyphcount, glyphs);
+}
+
/*
* adding RT_FONT prevents conflict with default cursor font
*/
diff --git a/xorg-server/dix/getevents.c b/xorg-server/dix/getevents.c
index 75708520f..27c2e04d1 100644
--- a/xorg-server/dix/getevents.c
+++ b/xorg-server/dix/getevents.c
@@ -1867,8 +1867,8 @@ GetTouchEvents(InternalEvent *events, DeviceIntPtr dev, uint32_t ddx_touchid,
touchpoint.ti =
TouchFindByDDXID(dev, ddx_touchid, (type == XI_TouchBegin));
if (!touchpoint.ti) {
- ErrorF("[dix] %s: unable to %s touch point %x\n", dev->name,
- type == XI_TouchBegin ? "begin" : "find", ddx_touchid);
+ ErrorFSigSafe("[dix] %s: unable to %s touch point %u\n", dev->name,
+ type == XI_TouchBegin ? "begin" : "find", ddx_touchid);
return 0;
}
client_id = touchpoint.ti->client_id;
diff --git a/xorg-server/dix/touch.c b/xorg-server/dix/touch.c
index aa17faf28..a01f152cd 100644
--- a/xorg-server/dix/touch.c
+++ b/xorg-server/dix/touch.c
@@ -198,8 +198,9 @@ TouchBeginDDXTouch(DeviceIntPtr dev, uint32_t ddx_id)
/* If we get here, then we've run out of touches and we need to drop the
* event (we're inside the SIGIO handler here) schedule a WorkProc to
* grow the queue for us for next time. */
- ErrorF("%s: not enough space for touch events (max %d touchpoints). "
- "Dropping this event.\n", dev->name, dev->last.num_touches);
+ ErrorFSigSafe("%s: not enough space for touch events (max %u touchpoints). "
+ "Dropping this event.\n", dev->name, dev->last.num_touches);
+
if (!BitIsOn(resize_waiting, dev->id)) {
SetBit(resize_waiting, dev->id);
QueueWorkProc(TouchResizeQueue, serverClient, NULL);
diff --git a/xorg-server/hw/xfree86/Makefile.am b/xorg-server/hw/xfree86/Makefile.am
index e50cb88c2..4d5d576a3 100644
--- a/xorg-server/hw/xfree86/Makefile.am
+++ b/xorg-server/hw/xfree86/Makefile.am
@@ -26,9 +26,9 @@ INT10_SUBDIR = int10
endif
SUBDIRS = common ddc x86emu $(INT10_SUBDIR) os-support parser \
- ramdac $(VBE_SUBDIR) $(VGAHW_SUBDIR) $(XAA_SUBDIR) \
- loader modes . i2c dixmods fbdevhw shadowfb exa \
- $(DRI_SUBDIR) $(DRI2_SUBDIR) $(XF86UTILS_SUBDIR) doc man
+ ramdac $(VGAHW_SUBDIR) loader modes . $(VBE_SUBDIR) \
+ $(XAA_SUBDIR) $(DRI_SUBDIR) $(DRI2_SUBDIR) i2c dixmods \
+ fbdevhw shadowfb exa $(XF86UTILS_SUBDIR) doc man
DIST_SUBDIRS = common ddc i2c x86emu int10 fbdevhw os-support \
parser ramdac shadowfb vbe vgahw xaa \
diff --git a/xorg-server/hw/xfree86/common/xf86Init.c b/xorg-server/hw/xfree86/common/xf86Init.c
index ca6efd44e..84c866944 100644
--- a/xorg-server/hw/xfree86/common/xf86Init.c
+++ b/xorg-server/hw/xfree86/common/xf86Init.c
@@ -1058,16 +1058,16 @@ void
OsVendorFatalError(const char *f, va_list args)
{
#ifdef VENDORSUPPORT
- ErrorF("\nPlease refer to your Operating System Vendor support pages\n"
- "at %s for support on this crash.\n", VENDORSUPPORT);
+ ErrorFSigSafe("\nPlease refer to your Operating System Vendor support "
+ "pages\nat %s for support on this crash.\n", VENDORSUPPORT);
#else
- ErrorF("\nPlease consult the " XVENDORNAME " support \n"
- "\t at " __VENDORDWEBSUPPORT__ "\n for help. \n");
+ ErrorFSigSafe("\nPlease consult the " XVENDORNAME " support \n\t at "
+ __VENDORDWEBSUPPORT__ "\n for help. \n");
#endif
if (xf86LogFile && xf86LogFileWasOpened)
- ErrorF("Please also check the log file at \"%s\" for additional "
- "information.\n", xf86LogFile);
- ErrorF("\n");
+ ErrorFSigSafe("Please also check the log file at \"%s\" for additional "
+ "information.\n", xf86LogFile);
+ ErrorFSigSafe("\n");
}
int
diff --git a/xorg-server/hw/xfree86/common/xf86Module.h b/xorg-server/hw/xfree86/common/xf86Module.h
index bf56acd05..7671cea5d 100644
--- a/xorg-server/hw/xfree86/common/xf86Module.h
+++ b/xorg-server/hw/xfree86/common/xf86Module.h
@@ -83,7 +83,7 @@ typedef enum {
*/
#define ABI_ANSIC_VERSION SET_ABI_VERSION(0, 4)
#define ABI_VIDEODRV_VERSION SET_ABI_VERSION(13, 0)
-#define ABI_XINPUT_VERSION SET_ABI_VERSION(17, 0)
+#define ABI_XINPUT_VERSION SET_ABI_VERSION(18, 0)
#define ABI_EXTENSION_VERSION SET_ABI_VERSION(6, 0)
#define ABI_FONT_VERSION SET_ABI_VERSION(0, 6)
diff --git a/xorg-server/hw/xfree86/common/xf86Xinput.h b/xorg-server/hw/xfree86/common/xf86Xinput.h
index 1d4363a50..35c38a554 100644
--- a/xorg-server/hw/xfree86/common/xf86Xinput.h
+++ b/xorg-server/hw/xfree86/common/xf86Xinput.h
@@ -68,14 +68,14 @@
/* This holds the input driver entry and module information. */
typedef struct _InputDriverRec {
int driverVersion;
- char *driverName;
+ const char *driverName;
void (*Identify) (int flags);
int (*PreInit) (struct _InputDriverRec * drv,
struct _InputInfoRec * pInfo, int flags);
void (*UnInit) (struct _InputDriverRec * drv,
struct _InputInfoRec * pInfo, int flags);
pointer module;
- char **default_options;
+ const char **default_options;
} InputDriverRec, *InputDriverPtr;
/* This is to input devices what the ScrnInfoRec is to screens. */
@@ -98,7 +98,7 @@ typedef struct _InputInfoRec {
int fd;
DeviceIntPtr dev;
pointer private;
- char *type_name;
+ const char *type_name;
InputDriverPtr drv;
pointer module;
XF86OptionPtr options;
diff --git a/xorg-server/hw/xfree86/dri/Makefile.am b/xorg-server/hw/xfree86/dri/Makefile.am
index 194cf8e3f..9528d5370 100644
--- a/xorg-server/hw/xfree86/dri/Makefile.am
+++ b/xorg-server/hw/xfree86/dri/Makefile.am
@@ -13,7 +13,7 @@ libdri_la_CFLAGS = -I$(top_srcdir)/hw/xfree86/common \
@LIBDRM_CFLAGS@ \
@DRI_CFLAGS@
libdri_la_LDFLAGS = -module -avoid-version $(LD_NO_UNDEFINED_FLAG)
-libdri_la_LIBADD = @LIBDRM_LIBS@
+libdri_la_LIBADD = @LIBDRM_LIBS@ $(PIXMAN_LIBS)
libdri_ladir = $(moduledir)/extensions
libdri_la_SOURCES = \
dri.c \
diff --git a/xorg-server/hw/xfree86/dri2/Makefile.am b/xorg-server/hw/xfree86/dri2/Makefile.am
index 0e40fbcf2..390ed12c8 100644
--- a/xorg-server/hw/xfree86/dri2/Makefile.am
+++ b/xorg-server/hw/xfree86/dri2/Makefile.am
@@ -7,7 +7,7 @@ libdri2_la_CFLAGS = \
-I$(top_srcdir)/hw/xfree86/os-support/bus
libdri2_la_LDFLAGS = -module -avoid-version $(LD_NO_UNDEFINED_FLAG)
-libdri2_la_LIBADD = @LIBDRM_LIBS@
+libdri2_la_LIBADD = @LIBDRM_LIBS@ $(PIXMAN_LIBS)
libdri2_ladir = $(moduledir)/extensions
libdri2_la_SOURCES = \
dri2.c \
diff --git a/xorg-server/hw/xfree86/i2c/Makefile.am b/xorg-server/hw/xfree86/i2c/Makefile.am
index f08541cf0..cb18db188 100644
--- a/xorg-server/hw/xfree86/i2c/Makefile.am
+++ b/xorg-server/hw/xfree86/i2c/Makefile.am
@@ -25,10 +25,7 @@ bt829_drv_la_LDFLAGS = -module -avoid-version $(LD_NO_UNDEFINED_FLAG)
bt829_drv_la_SOURCES = bt829.c bt829.h bt829_module.c
fi1236_drv_la_LDFLAGS = -module -avoid-version $(LD_NO_UNDEFINED_FLAG)
-fi1236_drv_la_SOURCES = fi1236.c fi1236.h fi1236_module.c
-if NO_UNDEFINED
-fi1236_drv_la_LIBADD = tda9885_drv.la
-endif
+fi1236_drv_la_SOURCES = fi1236.c fi1236.h fi1236_module.c tda9885.c
msp3430_drv_la_LDFLAGS = -module -avoid-version $(LD_NO_UNDEFINED_FLAG)
msp3430_drv_la_SOURCES = msp3430.c msp3430.h msp3430_module.c
diff --git a/xorg-server/hw/xfree86/loader/loader.c b/xorg-server/hw/xfree86/loader/loader.c
index b72b8b89d..edaefb8f9 100644
--- a/xorg-server/hw/xfree86/loader/loader.c
+++ b/xorg-server/hw/xfree86/loader/loader.c
@@ -163,7 +163,7 @@ LoaderSymbol(const char *name)
void
LoaderUnload(const char *name, void *handle)
{
- xf86Msg(X_INFO, "Unloading %s\n", name);
+ LogMessageVerbSigSafe(X_INFO, 1, "Unloading %s\n", name);
if (handle)
dlclose(handle);
}
diff --git a/xorg-server/hw/xfree86/loader/loadmod.c b/xorg-server/hw/xfree86/loader/loadmod.c
index 706b9b3e8..72020a58c 100644
--- a/xorg-server/hw/xfree86/loader/loadmod.c
+++ b/xorg-server/hw/xfree86/loader/loadmod.c
@@ -1093,9 +1093,10 @@ UnloadModuleOrDriver(ModuleDescPtr mod)
return;
if (mod->parent)
- xf86MsgVerb(X_INFO, 3, "UnloadSubModule: \"%s\"\n", mod->name);
+ LogMessageVerbSigSafe(X_INFO, 3, "UnloadSubModule: \"%s\"\n",
+ mod->name);
else
- xf86MsgVerb(X_INFO, 3, "UnloadModule: \"%s\"\n", mod->name);
+ LogMessageVerbSigSafe(X_INFO, 3, "UnloadModule: \"%s\"\n", mod->name);
if (mod->TearDownData != ModuleDuplicated) {
if ((mod->TearDownProc) && (mod->TearDownData))
diff --git a/xorg-server/hw/xfree86/os-support/shared/sigio.c b/xorg-server/hw/xfree86/os-support/shared/sigio.c
index 12ae8a480..231d6c04f 100644
--- a/xorg-server/hw/xfree86/os-support/shared/sigio.c
+++ b/xorg-server/hw/xfree86/os-support/shared/sigio.c
@@ -99,6 +99,8 @@ xf86SIGIO(int sig)
int save_errno = errno; /* do not clobber the global errno */
int r;
+ inSignalContext = TRUE;
+
ready = xf86SigIOMask;
to.tv_sec = 0;
to.tv_usec = 0;
@@ -114,6 +116,8 @@ xf86SIGIO(int sig)
}
/* restore global errno */
errno = save_errno;
+
+ inSignalContext = FALSE;
}
static int
diff --git a/xorg-server/hw/xfree86/xaa/Makefile.am b/xorg-server/hw/xfree86/xaa/Makefile.am
index f6480a713..5614d723a 100644
--- a/xorg-server/hw/xfree86/xaa/Makefile.am
+++ b/xorg-server/hw/xfree86/xaa/Makefile.am
@@ -11,8 +11,9 @@ POLYSEG = s-xaaLine.c s-xaaDashLine.c
if XAA
libxaa_la_LDFLAGS = -module -avoid-version $(LD_NO_UNDEFINED_FLAG)
+libxaa_la_LIBADD = $(PIXMAN_LIBS)
if COMPOSITE
-libxaa_la_LIBADD = $(top_builddir)/miext/cw/libcw.la
+libxaa_la_LIBADD += $(top_builddir)/miext/cw/libcw.la
endif
module_LTLIBRARIES = libxaa.la
diff --git a/xorg-server/include/dixfont.h b/xorg-server/include/dixfont.h
index 9333041fb..3d09eb5ae 100644
--- a/xorg-server/include/dixfont.h
+++ b/xorg-server/include/dixfont.h
@@ -117,12 +117,13 @@ extern _X_EXPORT void FreeFonts(void);
extern _X_EXPORT FontPtr find_old_font(XID /*id */ );
-extern _X_EXPORT void GetGlyphs(FontPtr /*font */ ,
- unsigned long /*count */ ,
- unsigned char * /*chars */ ,
- FontEncoding /*fontEncoding */ ,
- unsigned long * /*glyphcount */ ,
- CharInfoPtr * /*glyphs */ );
+#define GetGlyphs dixGetGlyphs
+extern _X_EXPORT void dixGetGlyphs(FontPtr /*font */ ,
+ unsigned long /*count */ ,
+ unsigned char * /*chars */ ,
+ FontEncoding /*fontEncoding */ ,
+ unsigned long * /*glyphcount */ ,
+ CharInfoPtr * /*glyphs */ );
extern _X_EXPORT void QueryGlyphExtents(FontPtr /*pFont */ ,
CharInfoPtr * /*charinfo */ ,
diff --git a/xorg-server/include/globals.h b/xorg-server/include/globals.h
index 8076955a9..6d3f3d708 100644
--- a/xorg-server/include/globals.h
+++ b/xorg-server/include/globals.h
@@ -2,6 +2,8 @@
#ifndef _XSERV_GLOBAL_H_
#define _XSERV_GLOBAL_H_
+#include <signal.h>
+
#include "window.h" /* for WindowPtr */
/* Global X server variables that are visible to mi, dix, os, and ddx */
@@ -23,6 +25,7 @@ extern _X_EXPORT int GrabInProgress;
extern _X_EXPORT Bool noTestExtensions;
extern _X_EXPORT char *SeatId;
extern _X_EXPORT char *ConnectionInfo;
+extern _X_EXPORT sig_atomic_t inSignalContext;
#ifdef DPMSExtension
extern _X_EXPORT CARD32 DPMSStandbyTime;
diff --git a/xorg-server/include/misc.h b/xorg-server/include/misc.h
index fea74b86c..aa62f6a3a 100644
--- a/xorg-server/include/misc.h
+++ b/xorg-server/include/misc.h
@@ -229,6 +229,8 @@ pad_to_int32(const int bytes)
}
extern char **xstrtokenize(const char *str, const char *separators);
+extern void FormatUInt64(uint64_t num, char *string);
+extern void FormatUInt64Hex(uint64_t num, char *string);
/**
* Compare the two version numbers comprising of major.minor.
@@ -369,10 +371,10 @@ extern _X_EXPORT unsigned long serverGeneration;
/* Don't use this directly, use BUG_WARN or BUG_WARN_MSG instead */
#define __BUG_WARN_MSG(cond, with_msg, ...) \
do { if (cond) { \
- ErrorF("BUG: triggered 'if (" #cond ")'\n"); \
- ErrorF("BUG: %s:%d in %s()\n", \
- __FILE__, __LINE__, __func__); \
- if (with_msg) ErrorF(__VA_ARGS__); \
+ ErrorFSigSafe("BUG: triggered 'if (" #cond ")'\n"); \
+ ErrorFSigSafe("BUG: %s:%u in %s()\n", \
+ __FILE__, __LINE__, __func__); \
+ if (with_msg) ErrorFSigSafe(__VA_ARGS__); \
xorg_backtrace(); \
} } while(0)
diff --git a/xorg-server/include/os.h b/xorg-server/include/os.h
index 276eb5213..e93c48ae6 100644
--- a/xorg-server/include/os.h
+++ b/xorg-server/include/os.h
@@ -49,6 +49,7 @@ SOFTWARE.
#include "misc.h"
#include <stdarg.h>
+#include <stdint.h>
#include <string.h>
#define SCREEN_SAVER_ON 0
@@ -604,6 +605,12 @@ _X_ATTRIBUTE_PRINTF(3, 4);
extern _X_EXPORT void
LogMessage(MessageType type, const char *format, ...)
_X_ATTRIBUTE_PRINTF(2, 3);
+extern _X_EXPORT void
+LogMessageVerbSigSafe(MessageType type, int verb, const char *format, ...)
+_X_ATTRIBUTE_PRINTF(3, 4);
+extern _X_EXPORT void
+LogVMessageVerbSigSafe(MessageType type, int verb, const char *format, va_list args)
+_X_ATTRIBUTE_PRINTF(3, 0);
extern _X_EXPORT void
LogVHdrMessageVerb(MessageType type, int verb,
@@ -649,6 +656,12 @@ extern _X_EXPORT void
ErrorF(const char *f, ...)
_X_ATTRIBUTE_PRINTF(1, 2);
extern _X_EXPORT void
+VErrorFSigSafe(const char *f, va_list args)
+_X_ATTRIBUTE_PRINTF(1, 0);
+extern _X_EXPORT void
+ErrorFSigSafe(const char *f, ...)
+_X_ATTRIBUTE_PRINTF(1, 2);
+extern _X_EXPORT void
LogPrintMarkers(void);
extern _X_EXPORT void
diff --git a/xorg-server/mi/mieq.c b/xorg-server/mi/mieq.c
index e117a8db7..b2c7769ec 100644
--- a/xorg-server/mi/mieq.c
+++ b/xorg-server/mi/mieq.c
@@ -276,23 +276,22 @@ mieqEnqueue(DeviceIntPtr pDev, InternalEvent *e)
*/
miEventQueue.dropped++;
if (miEventQueue.dropped == 1) {
- ErrorF
- ("[mi] EQ overflowing. Additional events will be discarded until existing events are processed.\n");
+ ErrorFSigSafe("[mi] EQ overflowing. Additional events will be "
+ "discarded until existing events are processed.\n");
xorg_backtrace();
- ErrorF
- ("[mi] These backtraces from mieqEnqueue may point to a culprit higher up the stack.\n");
- ErrorF("[mi] mieq is *NOT* the cause. It is a victim.\n");
+ ErrorFSigSafe("[mi] These backtraces from mieqEnqueue may point to "
+ "a culprit higher up the stack.\n");
+ ErrorFSigSafe("[mi] mieq is *NOT* the cause. It is a victim.\n");
}
else if (miEventQueue.dropped % QUEUE_DROP_BACKTRACE_FREQUENCY == 0 &&
miEventQueue.dropped / QUEUE_DROP_BACKTRACE_FREQUENCY <=
QUEUE_DROP_BACKTRACE_MAX) {
- ErrorF
- ("[mi] EQ overflow continuing. %lu events have been dropped.\n",
- miEventQueue.dropped);
+ ErrorFSigSafe("[mi] EQ overflow continuing. %u events have been "
+ "dropped.\n", miEventQueue.dropped);
if (miEventQueue.dropped / QUEUE_DROP_BACKTRACE_FREQUENCY ==
QUEUE_DROP_BACKTRACE_MAX) {
- ErrorF
- ("[mi] No further overflow reports will be reported until the clog is cleared.\n");
+ ErrorFSigSafe("[mi] No further overflow reports will be "
+ "reported until the clog is cleared.\n");
}
xorg_backtrace();
}
diff --git a/xorg-server/os/backtrace.c b/xorg-server/os/backtrace.c
index 81348f417..daac60cf6 100644
--- a/xorg-server/os/backtrace.c
+++ b/xorg-server/os/backtrace.c
@@ -45,29 +45,37 @@ xorg_backtrace(void)
int size, i;
Dl_info info;
- ErrorF("\n");
- ErrorF("Backtrace:\n");
+ ErrorFSigSafe("\n");
+ ErrorFSigSafe("Backtrace:\n");
size = backtrace(array, 64);
for (i = 0; i < size; i++) {
int rc = dladdr(array[i], &info);
if (rc == 0) {
- ErrorF("%d: ?? [%p]\n", i, array[i]);
+ ErrorFSigSafe("%u: ?? [%p]\n", i, array[i]);
continue;
}
mod = (info.dli_fname && *info.dli_fname) ? info.dli_fname : "(vdso)";
if (info.dli_saddr)
- ErrorF("%d: %s (%s+0x%lx) [%p]\n", i, mod,
- info.dli_sname,
- (long unsigned int) ((char *) array[i] -
- (char *) info.dli_saddr), array[i]);
+ ErrorFSigSafe(
+ "%u: %s (%s+0x%x) [%p]\n",
+ i,
+ mod,
+ info.dli_sname,
+ (unsigned int)((char *) array[i] -
+ (char *) info.dli_saddr),
+ array[i]);
else
- ErrorF("%d: %s (%p+0x%lx) [%p]\n", i, mod,
- info.dli_fbase,
- (long unsigned int) ((char *) array[i] -
- (char *) info.dli_fbase), array[i]);
+ ErrorFSigSafe(
+ "%u: %s (%p+0x%x) [%p]\n",
+ i,
+ mod,
+ info.dli_fbase,
+ (unsigned int)((char *) array[i] -
+ (char *) info.dli_fbase),
+ array[i]);
}
- ErrorF("\n");
+ ErrorFSigSafe("\n");
}
#else /* not glibc or glibc < 2.1 */
@@ -105,7 +113,7 @@ xorg_backtrace_frame(uintptr_t pc, int signo, void *arg)
strcpy(signame, "unknown");
}
- ErrorF("** Signal %d (%s)\n", signo, signame);
+ ErrorFSigSafe("** Signal %u (%s)\n", signo, signame);
}
snprintf(header, sizeof(header), "%d: 0x%lx", depth, pc);
@@ -123,7 +131,8 @@ xorg_backtrace_frame(uintptr_t pc, int signo, void *arg)
symname = "<section start>";
offset = pc - (uintptr_t) dlinfo.dli_fbase;
}
- ErrorF("%s: %s:%s+0x%lx\n", header, dlinfo.dli_fname, symname, offset);
+ ErrorFSigSafe("%s: %s:%s+0x%x\n", header, dlinfo.dli_fname, symname,
+ offset);
}
else {
@@ -131,7 +140,7 @@ xorg_backtrace_frame(uintptr_t pc, int signo, void *arg)
* probably poke elfloader here, but haven't written that code yet,
* so we just print the pc.
*/
- ErrorF("%s\n", header);
+ ErrorFSigSafe("%s\n", header);
}
return 0;
@@ -183,7 +192,7 @@ xorg_backtrace_pstack(void)
if (bytesread > 0) {
btline[bytesread] = 0;
- ErrorF("%s", btline);
+ ErrorFSigSafe("%s", btline);
}
else if ((bytesread < 0) || ((errno != EINTR) && (errno != EAGAIN)))
done = 1;
@@ -203,8 +212,8 @@ void
xorg_backtrace(void)
{
- ErrorF("\n");
- ErrorF("Backtrace:\n");
+ ErrorFSigSafe("\n");
+ ErrorFSigSafe("Backtrace:\n");
#ifdef HAVE_PSTACK
/* First try fork/exec of pstack - otherwise fall back to walkcontext
@@ -221,9 +230,9 @@ xorg_backtrace(void)
walkcontext(&u, xorg_backtrace_frame, &depth);
else
#endif
- ErrorF("Failed to get backtrace info: %s\n", strerror(errno));
+ ErrorFSigSafe("Failed to get backtrace info: %s\n", strerror(errno));
}
- ErrorF("\n");
+ ErrorFSigSafe("\n");
}
#else
diff --git a/xorg-server/os/log.c b/xorg-server/os/log.c
index 2c13c1a7d..25da9f63a 100644
--- a/xorg-server/os/log.c
+++ b/xorg-server/os/log.c
@@ -108,6 +108,7 @@ void (*OsVendorVErrorFProc) (const char *, va_list args) = NULL;
#endif
static FILE *logFile = NULL;
+static int logFileFd = -1;
static Bool logFlush = FALSE;
static Bool logSync = FALSE;
static int logVerbosity = DEFAULT_LOG_VERBOSITY;
@@ -171,6 +172,14 @@ asm(".desc ___crashreporter_info__, 0x10");
#define X_NONE_STRING ""
#endif
+static size_t
+strlen_sigsafe(const char *s)
+{
+ size_t len;
+ for (len = 0; s[len]; len++);
+ return len;
+}
+
/*
* LogInit is called to start logging to a file. It is also called (with
* NULL arguments) when logging to a file is not wanted. It must always be
@@ -211,6 +220,8 @@ LogInit(const char *fname, const char *backup)
FatalError("Cannot open log file \"%s\"\n", logFileName);
setvbuf(logFile, NULL, _IONBF, 0);
+ logFileFd = fileno(logFile);
+
/* Flush saved log information. */
if (saveBuffer && bufferSize > 0) {
fwrite(saveBuffer, bufferPos, 1, logFile);
@@ -243,6 +254,7 @@ LogClose(enum ExitCode error)
(error == EXIT_NO_ERROR) ? "successfully" : "with error", error);
fclose(logFile);
logFile = NULL;
+ logFileFd = -1;
}
}
@@ -267,16 +279,97 @@ LogSetParameter(LogParameter param, int value)
}
}
-/* This function does the actual log message writes. */
+static int
+pnprintf(char *string, size_t size, const char *f, va_list args)
+{
+ int f_idx = 0;
+ int s_idx = 0;
+ int f_len = strlen_sigsafe(f);
+ char *string_arg;
+ char number[21];
+ int p_len;
+ int i;
+ uint64_t ui;
+
+ for (; f_idx < f_len && s_idx < size - 1; f_idx++) {
+ if (f[f_idx] != '%') {
+ string[s_idx++] = f[f_idx];
+ continue;
+ }
+
+ switch (f[++f_idx]) {
+ case 's':
+ string_arg = va_arg(args, char*);
+ p_len = strlen_sigsafe(string_arg);
+
+ for (i = 0; i < p_len && s_idx < size - 1; i++)
+ string[s_idx++] = string_arg[i];
+ break;
+
+ case 'u':
+ ui = va_arg(args, unsigned);
+ FormatUInt64(ui, number);
+ p_len = strlen_sigsafe(number);
+
+ for (i = 0; i < p_len && s_idx < size - 1; i++)
+ string[s_idx++] = number[i];
+ break;
+
+ case 'p':
+ string[s_idx++] = '0';
+ if (s_idx < size - 1)
+ string[s_idx++] = 'x';
+ ui = (uintptr_t)va_arg(args, void*);
+ FormatUInt64Hex(ui, number);
+ p_len = strlen_sigsafe(number);
+
+ for (i = 0; i < p_len && s_idx < size - 1; i++)
+ string[s_idx++] = number[i];
+ break;
+
+ case 'x':
+ ui = va_arg(args, unsigned);
+ FormatUInt64Hex(ui, number);
+ p_len = strlen_sigsafe(number);
+
+ for (i = 0; i < p_len && s_idx < size - 1; i++)
+ string[s_idx++] = number[i];
+ break;
+
+ default:
+ va_arg(args, char*);
+ string[s_idx++] = '%';
+ if (s_idx < size - 1)
+ string[s_idx++] = f[f_idx];
+ break;
+ }
+ }
+
+ string[s_idx] = '\0';
+
+ return s_idx;
+}
+
+/* This function does the actual log message writes. It must be signal safe.
+ * When attempting to call non-signal-safe functions, guard them with a check
+ * of the inSignalContext global variable. */
static void
LogSWrite(int verb, const char *buf, size_t len, Bool end_line)
{
static Bool newline = TRUE;
if (verb < 0 || logVerbosity >= verb)
- fwrite(buf, len, 1, stderr);
+ write(2, buf, len);
+
if (verb < 0 || logFileVerbosity >= verb) {
- if (logFile) {
+ if (inSignalContext && logFileFd >= 0) {
+ write(logFileFd, buf, len);
+#ifdef WIN32
+ if (logFlush && logSync)
+ fsync(logFileFd);
+#endif
+ }
+ else if (!inSignalContext && logFile) {
if (newline)
fprintf(logFile, "[%10.3f] ", GetTimeInMillis() / 1000.0);
newline = end_line;
@@ -289,7 +382,7 @@ LogSWrite(int verb, const char *buf, size_t len, Bool end_line)
#endif
}
}
- else if (needBuffer) {
+ else if (!inSignalContext && needBuffer) {
if (len > bufferUnused) {
bufferSize += 1024;
bufferUnused += 1024;
@@ -370,6 +463,16 @@ LogVMessageVerb(MessageType type, int verb, const char *format, va_list args)
Bool newline;
size_t len = 0;
+ if (inSignalContext) {
+ BUG_WARN_MSG(inSignalContext,
+ "Warning: attempting to log data in a signal unsafe "
+ "manner while in signal context. Please update to check "
+ "inSignalContext and/or use LogMessageVerbSigSafe() or "
+ "ErrorFSigSafe(). The offending log format message is:\n"
+ "%s\n", format);
+ return;
+ }
+
type_str = LogMessageTypeVerbString(type, verb);
if (!type_str)
return;
@@ -411,6 +514,44 @@ LogMessage(MessageType type, const char *format, ...)
va_end(ap);
}
+/* Log a message using only signal safe functions. */
+void
+LogMessageVerbSigSafe(MessageType type, int verb, const char *format, ...)
+{
+ va_list ap;
+ va_start(ap, format);
+ LogVMessageVerbSigSafe(type, verb, format, ap);
+ va_end(ap);
+}
+
+void
+LogVMessageVerbSigSafe(MessageType type, int verb, const char *format, va_list args)
+{
+ const char *type_str;
+ char buf[1024];
+ int len;
+ Bool newline;
+
+ type_str = LogMessageTypeVerbString(type, verb);
+ if (!type_str)
+ return;
+
+ /* if type_str is not "", prepend it and ' ', to message */
+ if (type_str[0] != '\0') {
+ LogSWrite(verb, type_str, strlen_sigsafe(type_str), FALSE);
+ LogSWrite(verb, " ", 1, FALSE);
+ }
+
+ len = pnprintf(buf, sizeof(buf), format, args);
+
+ /* Force '\n' at end of truncated line */
+ if (sizeof(buf) - len == 1)
+ buf[len - 1] = '\n';
+
+ newline = (buf[len - 1] == '\n');
+ LogSWrite(verb, buf, len, newline);
+}
+
void
LogVHdrMessageVerb(MessageType type, int verb, const char *msg_format,
va_list msg_args, const char *hdr_format, va_list hdr_args)
@@ -421,6 +562,16 @@ LogVHdrMessageVerb(MessageType type, int verb, const char *msg_format,
Bool newline;
size_t len = 0;
+ if (inSignalContext) {
+ BUG_WARN_MSG(inSignalContext,
+ "Warning: attempting to log data in a signal unsafe "
+ "manner while in signal context. Please update to check "
+ "inSignalContext and/or use LogMessageVerbSigSafe(). The "
+ "offending header and log message formats are:\n%s %s\n",
+ hdr_format, msg_format);
+ return;
+ }
+
type_str = LogMessageTypeVerbString(type, verb);
if (!type_str)
return;
@@ -648,6 +799,22 @@ ErrorF(const char *f, ...)
va_end(args);
}
+void
+VErrorFSigSafe(const char *f, va_list args)
+{
+ LogVMessageVerbSigSafe(X_ERROR, -1, f, args);
+}
+
+void
+ErrorFSigSafe(const char *f, ...)
+{
+ va_list args;
+
+ va_start(args, f);
+ VErrorFSigSafe(f, args);
+ va_end(args);
+}
+
void
LogPrintMarkers(void)
{
diff --git a/xorg-server/os/osinit.c b/xorg-server/os/osinit.c
index e2a220886..6cc040178 100644
--- a/xorg-server/os/osinit.c
+++ b/xorg-server/os/osinit.c
@@ -113,7 +113,7 @@ OsSigHandler(int signo)
const char *dlerr = dlerror();
if (dlerr) {
- LogMessage(X_ERROR, "Dynamic loader error: %s\n", dlerr);
+ LogMessageVerbSigSafe(X_ERROR, 1, "Dynamic loader error: %s\n", dlerr);
}
#endif /* RTLD_DI_SETSIGNAL */
@@ -129,8 +129,8 @@ OsSigHandler(int signo)
#ifdef SA_SIGINFO
if (sip->si_code == SI_USER) {
- ErrorF("Recieved signal %d sent by process %ld, uid %ld\n",
- signo, (long) sip->si_pid, (long) sip->si_uid);
+ ErrorFSigSafe("Recieved signal %u sent by process %u, uid %u\n", signo,
+ sip->si_pid, sip->si_uid);
}
else {
switch (signo) {
@@ -138,7 +138,7 @@ OsSigHandler(int signo)
case SIGBUS:
case SIGILL:
case SIGFPE:
- ErrorF("%s at address %p\n", strsignal(signo), sip->si_addr);
+ ErrorFSigSafe("%s at address %p\n", strsignal(signo), sip->si_addr);
}
}
#endif
diff --git a/xorg-server/os/utils.c b/xorg-server/os/utils.c
index 3a1ef9303..998c3ed4a 100644
--- a/xorg-server/os/utils.c
+++ b/xorg-server/os/utils.c
@@ -204,6 +204,8 @@ int auditTrailLevel = 1;
char *SeatId = NULL;
+sig_atomic_t inSignalContext = FALSE;
+
#if defined(SVR4) || defined(__linux__) || defined(CSRG_BASED)
#define HAS_SAVED_IDS_AND_SETEUID
#endif
@@ -1791,3 +1793,47 @@ xstrtokenize(const char *str, const char *separators)
free(list);
return NULL;
}
+
+/* Format a number into a string in a signal safe manner. The string should be
+ * at least 21 characters in order to handle all uint64_t values. */
+void
+FormatUInt64(uint64_t num, char *string)
+{
+ uint64_t divisor;
+ int len;
+ int i;
+
+ for (len = 1, divisor = 10;
+ len < 20 && num / divisor;
+ len++, divisor *= 10);
+
+ for (i = len, divisor = 1; i > 0; i--, divisor *= 10)
+ string[i - 1] = '0' + ((num / divisor) % 10);
+
+ string[len] = '\0';
+}
+
+/* Format a number into a hexadecimal string in a signal safe manner. The string
+ * should be at least 17 characters in order to handle all uint64_t values. */
+void
+FormatUInt64Hex(uint64_t num, char *string)
+{
+ uint64_t divisor;
+ int len;
+ int i;
+
+ for (len = 1, divisor = 0x10;
+ len < 16 && num / divisor;
+ len++, divisor *= 0x10);
+
+ for (i = len, divisor = 1; i > 0; i--, divisor *= 0x10) {
+ int val = (num / divisor) % 0x10;
+
+ if (val < 10)
+ string[i - 1] = '0' + val;
+ else
+ string[i - 1] = 'a' + val - 10;
+ }
+
+ string[len] = '\0';
+}
diff --git a/xorg-server/test/.gitignore b/xorg-server/test/.gitignore
index 23d4c8f4f..363d4b683 100644
--- a/xorg-server/test/.gitignore
+++ b/xorg-server/test/.gitignore
@@ -8,3 +8,4 @@ touch
xfree86
xkb
xtest
+signal-logging
diff --git a/xorg-server/test/Makefile.am b/xorg-server/test/Makefile.am
index a5a2e5c2b..e5b25c97f 100644
--- a/xorg-server/test/Makefile.am
+++ b/xorg-server/test/Makefile.am
@@ -5,7 +5,7 @@ if XORG
# Tests that require at least some DDX functions in order to fully link
# For now, requires xf86 ddx, could be adjusted to use another
SUBDIRS += xi2
-noinst_PROGRAMS += xkb input xtest misc fixes xfree86 hashtabletest
+noinst_PROGRAMS += xkb input xtest misc fixes xfree86 hashtabletest signal-logging
endif
check_LTLIBRARIES = libxservertest.la
@@ -36,6 +36,7 @@ misc_LDADD=$(TEST_LDADD)
fixes_LDADD=$(TEST_LDADD)
xfree86_LDADD=$(TEST_LDADD)
touch_LDADD=$(TEST_LDADD)
+signal_logging_LDADD=$(TEST_LDADD)
hashtabletest_LDADD=$(TEST_LDADD) $(top_srcdir)/Xext/hashtable.c
libxservertest_la_LIBADD = $(XSERVER_LIBS)
diff --git a/xorg-server/test/signal-logging.c b/xorg-server/test/signal-logging.c
new file mode 100644
index 000000000..8aab0dd58
--- /dev/null
+++ b/xorg-server/test/signal-logging.c
@@ -0,0 +1,115 @@
+/**
+ * Copyright © 2012 Canonical, Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <stdint.h>
+#include "assert.h"
+#include "misc.h"
+
+struct number_format_test {
+ uint64_t number;
+ char string[21];
+ char hex_string[17];
+};
+
+static Bool
+check_number_format_test(const struct number_format_test *test)
+{
+ char string[21];
+
+ FormatUInt64(test->number, string);
+ if(strncmp(string, test->string, 21) != 0) {
+ fprintf(stderr, "Failed to convert %ju to decimal string (%s vs %s)\n",
+ test->number, test->string, string);
+ return FALSE;
+ }
+ FormatUInt64Hex(test->number, string);
+ if(strncmp(string, test->hex_string, 17) != 0) {
+ fprintf(stderr,
+ "Failed to convert %ju to hexadecimal string (%s vs %s)\n",
+ test->number, test->hex_string, string);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static Bool
+number_formatting(void)
+{
+ int i;
+ struct number_format_test tests[] = {
+ { /* Zero */
+ 0,
+ "0",
+ "0",
+ },
+ { /* Single digit number */
+ 5,
+ "5",
+ "5",
+ },
+ { /* Two digit decimal number */
+ 12,
+ "12",
+ "c",
+ },
+ { /* Two digit hex number */
+ 37,
+ "37",
+ "25",
+ },
+ { /* Large < 32 bit number */
+ 0xC90B2,
+ "823474",
+ "c90b2",
+ },
+ { /* Large > 32 bit number */
+ 0x15D027BF211B37A,
+ "98237498237498234",
+ "15d027bf211b37a",
+ },
+ { /* Maximum 64-bit number */
+ 0xFFFFFFFFFFFFFFFF,
+ "18446744073709551615",
+ "ffffffffffffffff",
+ },
+ };
+
+ for (i = 0; i < sizeof(tests) / sizeof(tests[0]); i++)
+ if (!check_number_format_test(tests + i))
+ return FALSE;
+
+ return TRUE;
+}
+
+int
+main(int argc, char **argv)
+{
+ int ok = number_formatting();
+
+ return ok ? 0 : 1;
+}
--
cgit v1.2.3