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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 06:17:24 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 06:17:24 +0000 |
commit | 9d8085074991d5c0a42d6fc96a2d1a3ee918aad1 (patch) | |
tree | c85bca1e6c11eb872edfc64c524d20f2b7e3307b /lib/malloc/trace.c | |
parent | Initial commit. (diff) | |
download | bash-upstream/5.1.tar.xz bash-upstream/5.1.zip |
Adding upstream version 5.1.upstream/5.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/malloc/trace.c')
-rw-r--r-- | lib/malloc/trace.c | 126 |
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..391ca9d --- /dev/null +++ b/lib/malloc/trace.c @@ -0,0 +1,126 @@ +/* trace.c - tracing functions for malloc */ + +/* Copyright (C) 2001-2020 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 PARAMS((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 +} |