libX11 xserver fontconfig mesa pixman xkbcomp xkeyboard-config git update

23 Mar 2012

1 files changed, 126 insertions, 109 deletions

diff --git a/xorg-server/os/backtrace.c b/xorg-server/os/backtrace.c
index edaeb17c7..81348f417 100644
--- a/xorg-server/os/backtrace.c
+++ b/xorg-server/os/backtrace.c
@@ -37,53 +37,61 @@
 #include <dlfcn.h>
 #include <execinfo.h>
 
-void xorg_backtrace(void)
+void
+xorg_backtrace(void)
 {
     void *array[64];
     const char *mod;
     int size, i;
     Dl_info info;
+
     ErrorF("\n");
     ErrorF("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]);
-	    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]);
-	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]);
+        int rc = dladdr(array[i], &info);
+
+        if (rc == 0) {
+            ErrorF("%d: ?? [%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]);
+        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]);
     }
     ErrorF("\n");
 }
 
-#else /* not glibc or glibc < 2.1 */
+#else                           /* not glibc or glibc < 2.1 */
 
-# if defined(sun) && defined(__SVR4)
-#  define HAVE_PSTACK
-# endif
+#if defined(sun) && defined(__SVR4)
+#define HAVE_PSTACK
+#endif
 
-# if defined(HAVE_WALKCONTEXT) /* Solaris 9 & later */
+#if defined(HAVE_WALKCONTEXT)   /* Solaris 9 & later */
 
-# include <ucontext.h>
-# include <signal.h>
-# include <dlfcn.h>
-# include <sys/elf.h>
+#include <ucontext.h>
+#include <signal.h>
+#include <dlfcn.h>
+#include <sys/elf.h>
 
 #ifdef _LP64
-# define ElfSym Elf64_Sym
+#define ElfSym Elf64_Sym
 #else
-# define ElfSym Elf32_Sym
+#define ElfSym Elf32_Sym
 #endif
 
 /* Called for each frame on the stack to print it's contents */
-static int xorg_backtrace_frame(uintptr_t pc, int signo, void *arg)
+static int
+xorg_backtrace_frame(uintptr_t pc, int signo, void *arg)
 {
     Dl_info dlinfo;
     ElfSym *dlsym;
@@ -91,13 +99,13 @@ static int xorg_backtrace_frame(uintptr_t pc, int signo, void *arg)
     int depth = *((int *) arg);
 
     if (signo) {
-	char signame[SIG2STR_MAX];
+        char signame[SIG2STR_MAX];
 
-	if (sig2str(signo, signame) != 0) {
-	    strcpy(signame, "unknown");
-	}
+        if (sig2str(signo, signame) != 0) {
+            strcpy(signame, "unknown");
+        }
 
-	ErrorF("** Signal %d (%s)\n", signo, signame);
+        ErrorF("** Signal %d (%s)\n", signo, signame);
     }
 
     snprintf(header, sizeof(header), "%d: 0x%lx", depth, pc);
@@ -105,118 +113,127 @@ static int xorg_backtrace_frame(uintptr_t pc, int signo, void *arg)
 
     /* Ask system dynamic loader for info on the address */
     if (dladdr1((void *) pc, &dlinfo, (void **) &dlsym, RTLD_DL_SYMENT)) {
-	unsigned long offset = pc - (uintptr_t) dlinfo.dli_saddr;
-	const char *symname;
-	
-	if (offset < dlsym->st_size) { /* inside a function */
-	    symname = dlinfo.dli_sname;
-	} else { /* found which file it was in, but not which function */
-	    symname = "<section start>";
-	    offset = pc - (uintptr_t)dlinfo.dli_fbase;
-	}
-	ErrorF("%s: %s:%s+0x%lx\n", header, dlinfo.dli_fname,
-	       symname, offset);
-
-    } else {
-	/* Couldn't find symbol info from system dynamic loader, should
-	 * probably poke elfloader here, but haven't written that code yet,
-	 * so we just print the pc.
-	 */
-	ErrorF("%s\n", header);
+        unsigned long offset = pc - (uintptr_t) dlinfo.dli_saddr;
+        const char *symname;
+
+        if (offset < dlsym->st_size) {  /* inside a function */
+            symname = dlinfo.dli_sname;
+        }
+        else {                  /* found which file it was in, but not which function */
+            symname = "<section start>";
+            offset = pc - (uintptr_t) dlinfo.dli_fbase;
+        }
+        ErrorF("%s: %s:%s+0x%lx\n", header, dlinfo.dli_fname, symname, offset);
+
+    }
+    else {
+        /* Couldn't find symbol info from system dynamic loader, should
+         * probably poke elfloader here, but haven't written that code yet,
+         * so we just print the pc.
+         */
+        ErrorF("%s\n", header);
     }
 
     return 0;
 }
-# endif /* HAVE_WALKCONTEXT */
+#endif                          /* HAVE_WALKCONTEXT */
 
-# ifdef HAVE_PSTACK
-static int xorg_backtrace_pstack(void) {
+#ifdef HAVE_PSTACK
+static int
+xorg_backtrace_pstack(void)
+{
     pid_t kidpid;
     int pipefd[2];
 
     if (pipe(pipefd) != 0) {
-	return -1;
+        return -1;
     }
 
     kidpid = fork1();
 
     if (kidpid == -1) {
-	/* ERROR */
-	return -1;
-    } else if (kidpid == 0) {
-	/* CHILD */
-	char parent[16];
-	
-	seteuid(0);
-	close(STDIN_FILENO);
-	close(STDOUT_FILENO);
-	dup2(pipefd[1],STDOUT_FILENO);
-	closefrom(STDERR_FILENO);
-
-	snprintf(parent, sizeof(parent), "%d", getppid());
-	execle("/usr/bin/pstack", "pstack", parent, NULL);
-	exit(1);
-    } else {
-	/* PARENT */
-	char btline[256];
-	int kidstat;
-	int bytesread;
-	int done = 0;
-	
-	close(pipefd[1]);
-
-	while (!done) {
-	    bytesread = read(pipefd[0], btline, sizeof(btline) - 1);
-
-	    if (bytesread > 0) {
-		btline[bytesread] = 0;
-		ErrorF("%s", btline);
-	    }
-	    else if ((bytesread < 0) ||
-		     ((errno != EINTR) && (errno != EAGAIN)))
-		done = 1;
-	}
-	close(pipefd[0]);
-	waitpid(kidpid, &kidstat, 0);
-	if (kidstat != 0)
-	    return -1;
+        /* ERROR */
+        return -1;
+    }
+    else if (kidpid == 0) {
+        /* CHILD */
+        char parent[16];
+
+        seteuid(0);
+        close(STDIN_FILENO);
+        close(STDOUT_FILENO);
+        dup2(pipefd[1], STDOUT_FILENO);
+        closefrom(STDERR_FILENO);
+
+        snprintf(parent, sizeof(parent), "%d", getppid());
+        execle("/usr/bin/pstack", "pstack", parent, NULL);
+        exit(1);
+    }
+    else {
+        /* PARENT */
+        char btline[256];
+        int kidstat;
+        int bytesread;
+        int done = 0;
+
+        close(pipefd[1]);
+
+        while (!done) {
+            bytesread = read(pipefd[0], btline, sizeof(btline) - 1);
+
+            if (bytesread > 0) {
+                btline[bytesread] = 0;
+                ErrorF("%s", btline);
+            }
+            else if ((bytesread < 0) || ((errno != EINTR) && (errno != EAGAIN)))
+                done = 1;
+        }
+        close(pipefd[0]);
+        waitpid(kidpid, &kidstat, 0);
+        if (kidstat != 0)
+            return -1;
     }
     return 0;
 }
-# endif /* HAVE_PSTACK */
-
+#endif                          /* HAVE_PSTACK */
 
-# if defined(HAVE_PSTACK) || defined(HAVE_WALKCONTEXT)
+#if defined(HAVE_PSTACK) || defined(HAVE_WALKCONTEXT)
 
-void xorg_backtrace(void) {
+void
+xorg_backtrace(void)
+{
 
     ErrorF("\n");
     ErrorF("Backtrace:\n");
 
-#  ifdef HAVE_PSTACK
+#ifdef HAVE_PSTACK
 /* First try fork/exec of pstack - otherwise fall back to walkcontext
    pstack is preferred since it can print names of non-exported functions */
 
     if (xorg_backtrace_pstack() < 0)
-#  endif	
+#endif
     {
-#  ifdef HAVE_WALKCONTEXT
-	ucontext_t u;
-	int depth = 1;
-	
-	if (getcontext(&u) == 0)
-	    walkcontext(&u, xorg_backtrace_frame, &depth);
-	else
-#  endif
-	    ErrorF("Failed to get backtrace info: %s\n", strerror(errno));
+#ifdef HAVE_WALKCONTEXT
+        ucontext_t u;
+        int depth = 1;
+
+        if (getcontext(&u) == 0)
+            walkcontext(&u, xorg_backtrace_frame, &depth);
+        else
+#endif
+            ErrorF("Failed to get backtrace info: %s\n", strerror(errno));
     }
     ErrorF("\n");
 }
 
-# else
+#else
 
 /* Default fallback if we can't find any way to get a backtrace */
-void xorg_backtrace(void) { return; }
+void
+xorg_backtrace(void)
+{
+    return;
+}
 
-# endif
+#endif
 #endif