diff options
Diffstat (limited to 'lib/libc/stdlib/malloc.3')
| -rw-r--r-- | lib/libc/stdlib/malloc.3 | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/lib/libc/stdlib/malloc.3 b/lib/libc/stdlib/malloc.3 index 03feaa3..e7d53f9 100644 --- a/lib/libc/stdlib/malloc.3 +++ b/lib/libc/stdlib/malloc.3 @@ -57,7 +57,9 @@ .Ft void .Fn free "void *ptr" .Ft char * -.Va malloc_options; +.Va _malloc_options +.Ft void +.Va (*_malloc_message)(char *p1, char *p2, char *p3, char *p4) .Sh DESCRIPTION The .Fn malloc @@ -146,7 +148,7 @@ The ``name'' of the file referenced by the symbolic link named the value of the environment variable .Ev MALLOC_OPTIONS , and the string pointed to by the global variable -.Va malloc_options +.Va _malloc_options will be interpreted, in that order, character by character as flags. .Pp Most flags are single letters, @@ -211,8 +213,7 @@ core (using This option should be set at compile time by including the following in the source code: .Bd -literal -offset indent -extern char *malloc_options; -malloc_options = "X"; +_malloc_options = "X"; .Ed .It Z This option implicitly sets the @@ -249,8 +250,7 @@ ln -s 'A<' /etc/malloc.conf To specify in the source that a program does no return value checking on calls to these functions: .Bd -literal -offset indent -extern char *malloc_options; -malloc_options = "X"; +_malloc_options = "X"; .Ed .Sh ENVIRONMENT The following environment variables affect the execution of the allocation @@ -364,6 +364,14 @@ If the .Dq A option is set, all warnings are treated as errors. .Pp +The +.Va _malloc_message +variable allows the programmer to override the function which emits +the text strings forming the errors and warnings if for some reason +the stderr filedescriptor is not suitable for this. +Please note that doing anything which tries to allocate memory in +this function will certain suicide for the process. +.Pp The following is a brief description of possible error messages and their meanings: .Pp |
