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authorEric Andersen <andersen@codepoet.org>2003-03-03 20:58:42 +0000
committerEric Andersen <andersen@codepoet.org>2003-03-03 20:58:42 +0000
commit67eff66438688fddebe41f77fd252a3b2b135271 (patch)
tree18dbee3e9afe50d27095140198e2aa34df1de061 /include/sys/gmon_out.h
parent2229d0fa131387b9b8ad16ac88347350a080aeb5 (diff)
Initial effort at adding profiling support.
Diffstat (limited to 'include/sys/gmon_out.h')
-rw-r--r--include/sys/gmon_out.h80
1 files changed, 80 insertions, 0 deletions
diff --git a/include/sys/gmon_out.h b/include/sys/gmon_out.h
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+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by David Mosberger <davidm@cs.arizona.edu>.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* This file specifies the format of gmon.out files. It should have
+ as few external dependencies as possible as it is going to be included
+ in many different programs. That is, minimize the number of #include's.
+
+ A gmon.out file consists of a header (defined by gmon_hdr) followed by
+ a sequence of records. Each record starts with a one-byte tag
+ identifying the type of records, followed by records specific data. */
+
+#ifndef _SYS_GMON_OUT_H
+#define _SYS_GMON_OUT_H 1
+
+#include <features.h>
+
+#define GMON_MAGIC "gmon" /* magic cookie */
+#define GMON_VERSION 1 /* version number */
+
+/* For profiling shared object we need a new format. */
+#define GMON_SHOBJ_VERSION 0x1ffff
+
+__BEGIN_DECLS
+
+/*
+ * Raw header as it appears on file (without padding). This header
+ * always comes first in gmon.out and is then followed by a series
+ * records defined below.
+ */
+struct gmon_hdr
+ {
+ char cookie[4];
+ char version[4];
+ char spare[3 * 4];
+ };
+
+/* types of records in this file: */
+typedef enum
+ {
+ GMON_TAG_TIME_HIST = 0,
+ GMON_TAG_CG_ARC = 1,
+ GMON_TAG_BB_COUNT = 2
+ } GMON_Record_Tag;
+
+struct gmon_hist_hdr
+ {
+ char low_pc[sizeof (char *)]; /* base pc address of sample buffer */
+ char high_pc[sizeof (char *)]; /* max pc address of sampled buffer */
+ char hist_size[4]; /* size of sample buffer */
+ char prof_rate[4]; /* profiling clock rate */
+ char dimen[15]; /* phys. dim., usually "seconds" */
+ char dimen_abbrev; /* usually 's' for "seconds" */
+ };
+
+struct gmon_cg_arc_record
+ {
+ char from_pc[sizeof (char *)]; /* address within caller's body */
+ char self_pc[sizeof (char *)]; /* address within callee's body */
+ char count[4]; /* number of arc traversals */
+ };
+
+__END_DECLS
+
+#endif /* sys/gmon_out.h */