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-rw-r--r--lib/malloc/trace.c126
1 files changed, 126 insertions, 0 deletions
diff --git a/lib/malloc/trace.c b/lib/malloc/trace.c
new file mode 100644
index 0000000..95898b7
--- /dev/null
+++ b/lib/malloc/trace.c
@@ -0,0 +1,126 @@
+/* trace.c - tracing functions for malloc */
+
+/* Copyright (C) 2001-2003 Free Software Foundation, Inc.
+
+ This file is part of GNU Bash, the Bourne Again SHell.
+
+ Bash is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Bash 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bash. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#include "imalloc.h"
+
+extern int malloc_trace;
+
+static int _mtrace_verbose = 0;
+
+#ifdef MALLOC_TRACE
+
+extern FILE *_imalloc_fopen __P((char *, char *, char *, char *, size_t));
+
+FILE *_mtrace_fp = NULL;
+extern char _malloc_trace_buckets[];
+
+void
+mtrace_alloc (tag, mem, size, file, line)
+ const char *tag;
+ PTR_T mem;
+ size_t size;
+ const char *file;
+ int line;
+{
+ if (_mtrace_fp == NULL)
+ _mtrace_fp = stderr;
+
+ if (_mtrace_verbose)
+ fprintf (_mtrace_fp, "alloc: %s: %p (%zu bytes) from '%s:%d'\n",
+ tag, mem, size, file ? file : "unknown", line);
+ else
+ fprintf (_mtrace_fp, "alloc:%p:%zu:%s:%d\n",
+ mem, size, file ? file : "unknown", line);
+}
+
+void
+mtrace_free (mem, size, file, line)
+ PTR_T mem;
+ int size;
+ const char *file;
+ int line;
+{
+ if (_mtrace_fp == NULL)
+ _mtrace_fp = stderr;
+
+ if (_mtrace_verbose)
+ fprintf (_mtrace_fp, "free: %p (%d bytes) from '%s:%d'\n",
+ mem, size, file ? file : "unknown", line);
+ else
+ fprintf (_mtrace_fp, "free:%p:%d:%s:%d\n",
+ mem, size, file ? file : "unknown", line);
+}
+#endif /* MALLOC_TRACE */
+
+int
+malloc_set_trace (n)
+ int n;
+{
+ int old;
+
+ old = malloc_trace;
+ malloc_trace = n;
+ _mtrace_verbose = (n > 1);
+ return old;
+}
+
+void
+malloc_set_tracefp (fp)
+ FILE *fp;
+{
+#ifdef MALLOC_TRACE
+ _mtrace_fp = fp ? fp : stderr;
+#endif
+}
+
+void
+malloc_trace_bin (n)
+ int n;
+{
+#ifdef MALLOC_TRACE
+ _malloc_trace_buckets[n] = 1;
+#endif
+}
+
+#define TRACEROOT "/var/tmp/maltrace/trace."
+
+void
+malloc_set_tracefn (s, fn)
+ char *s;
+ char *fn;
+{
+#ifdef MALLOC_TRACE
+ FILE *fp;
+ char defname[sizeof (TRACEROOT) + 64];
+
+ fp = _imalloc_fopen (s, fn, TRACEROOT, defname, sizeof (defname));
+ if (fp)
+ malloc_set_tracefp (fp);
+#endif
+}