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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2012-03-20 23:27:29 +1300 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2012-03-21 06:54:30 +1300 |
| commit | 323c59bbc9d22ea4935ad0168b11460d25fe3c5b (patch) | |
| tree | 9c0c0d1fca5f0fc412e731be68c931179d70b74f | |
| parent | 675bd738184c74d7a6499d3d3e6ccc0f82628b43 (diff) | |
| download | man-pages-323c59bbc9d22ea4935ad0168b11460d25fe3c5b.tar.gz | |
malloc.3: Replace discussion of MALLOC_CHECK_ with pointer to mallopt(3)
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
| -rw-r--r-- | man3/malloc.3 | 30 |
1 files changed, 4 insertions, 26 deletions
diff --git a/man3/malloc.3 b/man3/malloc.3 index 2b912f7d46..e3d54c90e1 100644 --- a/man3/malloc.3 +++ b/man3/malloc.3 @@ -25,7 +25,7 @@ .\" Documented MALLOC_CHECK_, Wolfram Gloger (wmglo@dent.med.uni-muenchen.de) .\" 2007-09-15 mtk: added notes on malloc()'s use of sbrk() and mmap(). .\" -.TH MALLOC 3 2012-03-09 "GNU" "Linux Programmer's Manual" +.TH MALLOC 3 2012-03-20 "GNU" "Linux Programmer's Manual" .SH NAME malloc, free, calloc, realloc \- Allocate and free dynamic memory .SH SYNOPSIS @@ -253,30 +253,8 @@ Recent versions of Linux libc (later than 5.4.23) and glibc (2.x) include a .BR malloc () implementation which is tunable via environment variables. -When -.B MALLOC_CHECK_ -is set, a special (less efficient) implementation is used which -is designed to be tolerant against simple errors, such as double -calls of -.BR free () -with the same argument, or overruns of a single byte (off-by-one -bugs). -Not all such errors can be protected against, however, and -memory leaks can result. -If -.B MALLOC_CHECK_ -is set to 0, any detected heap corruption is silently ignored; -if set to 1, a diagnostic message is printed on \fIstderr\fP; -if set to 2, -.BR abort (3) -is called immediately; -if set to 3, a diagnostic message is printed on \fIstderr\fP -and the program is aborted. -Using a nonzero -.B MALLOC_CHECK_ -value can be useful because otherwise -a crash may happen much later, and the true cause for the problem -is then very hard to track down. +For details, see +.BR mallopt (3). .SH "SEE ALSO" .\" http://g.oswego.edu/dl/html/malloc.html .\" A Memory Allocator - by Doug Lea @@ -289,8 +267,8 @@ is then very hard to track down. .\" Check Lever, David Boreham .\" .BR brk (2), -.\" .BR mallopt (3), .BR mmap (2), .BR alloca (3), +.BR mallopt (3), .BR mtrace (3), .BR posix_memalign (3) |