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authorReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
committerReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
commitf4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch)
tree2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/util/memleak/getretspar.c
parenta840692edc9c6d19cd7c057f68e39c7d95eb767d (diff)
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Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1
Summary: Imported nx-X11-3.1.0-1.tar.gz Keywords: Imported nx-X11-3.1.0-1.tar.gz into Git repository
Diffstat (limited to 'nx-X11/util/memleak/getretspar.c')
-rw-r--r--nx-X11/util/memleak/getretspar.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/nx-X11/util/memleak/getretspar.c b/nx-X11/util/memleak/getretspar.c
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+++ b/nx-X11/util/memleak/getretspar.c
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+/*
+ * $Xorg: getretspar.c,v 1.4 2001/02/09 02:06:19 xorgcvs Exp $
+ *
+Copyright 1992, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice 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
+OPEN GROUP 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.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+ *
+ * Author: Keith Packard, MIT X Consortium
+ */
+
+/* Trace up the stack and build a call history -- SPARC specific code */
+
+/* hack -- flush out the register windows by recursing */
+
+static void
+flushWindows (depth)
+{
+ if (depth == 0)
+ return;
+ flushWindows (depth-1);
+}
+
+getStackTrace (results, max)
+ unsigned long *results;
+ int max;
+{
+ unsigned long *sp, *getStackPointer (), *getFramePointer();
+ unsigned long *ra, mainCall;
+ extern int main ();
+
+ flushWindows (32);
+ sp = getFramePointer ();
+ while (max)
+ {
+ /* sparc stack traces are easy -- chain up the saved FP/SP values */
+ ra = (unsigned long *) sp[15];
+ sp = (unsigned long *) sp[14];
+ /* stop when we get the call to main */
+ mainCall = ((((unsigned long) main) - ((unsigned long) ra)) >> 2) | 0x40000000;
+ if (ra[0] == mainCall)
+ {
+ *results++ = 0;
+ break;
+ }
+ *results++ = (unsigned long) ra;
+ max--;
+ }
+}