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authorRichard Henderson <rth@redhat.com>1999-05-03 07:29:11 +0000
committerRichard Henderson <rth@redhat.com>1999-05-03 07:29:11 +0000
commit252b5132c753830d5fd56823373aed85f2a0db63 (patch)
tree1af963bfd8d3e55167b81def4207f175eaff3a56 /gprof/bb_exit_func.c
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19990502 sourceware importbinu_ss_19990502
Diffstat (limited to 'gprof/bb_exit_func.c')
-rw-r--r--gprof/bb_exit_func.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/gprof/bb_exit_func.c b/gprof/bb_exit_func.c
new file mode 100644
index 0000000..8133215
--- /dev/null
+++ b/gprof/bb_exit_func.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 1994 David Mosberger-Tang.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as
+ * published by the Free Software Foundation; either version 2, or (at
+ * your option) any later version.
+ *
+ * __bb_exit_func() dumps all the basic-block statistics linked into
+ * the bb_head chain to .d files.
+ */
+#include <stdio.h>
+#include <strings.h>
+#include "bfd.h"
+#include "gmon_out.h"
+
+/* structure emitted by -a */
+struct bb {
+ long zero_word;
+ const char *filename;
+ long *counts;
+ long ncounts;
+ struct bb *next;
+ const unsigned long *addresses;
+};
+
+struct bb *__bb_head = (struct bb *)0;
+
+
+void
+__bb_exit_func (void)
+{
+ const int version = GMON_VERSION;
+ struct gmon_hdr ghdr;
+ struct bb *ptr;
+ FILE *fp;
+ /*
+ * GEN_GMON_CNT_FILE should be defined on systems with mcleanup()
+ * functions that do not write basic-block to gmon.out. In such
+ * cases profiling with "-pg -a" would result in a gmon.out file
+ * without basic-block info (because the file written here would
+ * be overwritten. Thus, a separate file is generated instead.
+ * The two files can easily be combined by specifying them
+ * on gprof's command line (and possibly generating a gmon.sum
+ * file with "gprof -s").
+ */
+#ifndef GEN_GMON_CNT_FILE
+# define OUT_NAME "gmon.out"
+#else
+# define OUT_NAME "gmon.cnt"
+#endif
+ fp = fopen(OUT_NAME, "wb");
+ if (!fp) {
+ perror(OUT_NAME);
+ return;
+ } /* if */
+ memcpy(&ghdr.cookie[0], GMON_MAGIC, 4);
+ memcpy(&ghdr.version, &version, sizeof(version));
+ fwrite(&ghdr, sizeof(ghdr), 1, fp);
+
+ for (ptr = __bb_head; ptr != 0; ptr = ptr->next) {
+ u_int ncounts = ptr->ncounts;
+ u_char tag;
+ u_int i;
+
+ tag = GMON_TAG_BB_COUNT;
+ fwrite(&tag, sizeof(tag), 1, fp);
+ fwrite(&ncounts, sizeof(ncounts), 1, fp);
+
+ for (i = 0; i < ncounts; ++i) {
+ fwrite(&ptr->addresses[i], sizeof(ptr->addresses[0]), 1, fp);
+ fwrite(&ptr->counts[i], sizeof(ptr->counts[0]), 1, fp);
+ } /* for */
+ } /* for */
+ fclose (fp);
+} /* __bb_exit_func */
+
+ /*** end of __bb_exit_func.c ***/