On Sat, Sep 09, 2023 at 11:27:37AM +0900, Masato Asou wrote:
> From: Otto Moerbeek <o...@drijf.net>
> Date: Fri, 8 Sep 2023 13:39:53 +0200
>
> > On Fri, Sep 08, 2023 at 10:08:28AM +0900, Masato Asou wrote:
> >
> >> From: Masato Asou <a...@soum.co.jp>
> >> Date: Fri, 08 Sep 2023 05:45:55 +0900 (JST)
> >>
> >> > There was a mistake in the diff.
> >> >
> >> > From: Masato Asou <a...@soum.co.jp>
> >> > Date: Fri, 08 Sep 2023 05:33:23 +0900 (JST)
> >> >
> >> >> Hi,
> >> >>
> >> >> I have modified diff. comments, ok?
> >
> > As wrtwarning() is only used #ifdef MALLOC_STATS, please put it inside
> > those guards (e.g directly above putleakinfo()).
> >
> > -Otto
>
> I have fixed diff. ok?
OK,
-Otto
> --
> ASOU Masato
>
> Index: stdlib/malloc.c
> ===================================================================
> RCS file: /cvs/src/lib/libc/stdlib/malloc.c,v
> retrieving revision 1.289
> diff -u -p -r1.289 malloc.c
> --- stdlib/malloc.c 30 Jun 2023 06:24:58 -0000 1.289
> +++ stdlib/malloc.c 9 Sep 2023 02:16:22 -0000
> @@ -2338,6 +2338,22 @@ RBT_PROTOTYPE(leaktree, leaknode, entry,
> RBT_GENERATE(leaktree, leaknode, entry, leakcmp);
>
> static void
> +wrtwarning(const char *func, char *msg, ...)
> +{
> + int saved_errno = errno;
> + va_list ap;
> +
> + dprintf(STDERR_FILENO, "%s(%d) in %s(): ", __progname,
> + getpid(), func != NULL ? func : "unknown");
> + va_start(ap, msg);
> + vdprintf(STDERR_FILENO, msg, ap);
> + va_end(ap);
> + dprintf(STDERR_FILENO, "\n");
> +
> + errno = saved_errno;
> +}
> +
> +static void
> putleakinfo(struct leaktree *leaks, void *f, size_t sz, int cnt)
> {
> struct leaknode key, *p;
> @@ -2353,8 +2369,10 @@ putleakinfo(struct leaktree *leaks, void
> if (page == NULL ||
> used >= MALLOC_PAGESIZE / sizeof(struct leaknode)) {
> page = MMAP(MALLOC_PAGESIZE, 0);
> - if (page == MAP_FAILED)
> + if (page == MAP_FAILED) {
> + wrtwarning(__func__, strerror(errno));
> return;
> + }
> used = 0;
> }
> p = &page[used++];
>
> >> >>
> >> >> $ MALLOC_OPTIONS=D ktrace -tu ./a.out 1073490000
> >> >> a.out(99781) in unknown(): putleakinfo(): Cannot allocate memory
> >> >> --
> >> >> ASOU Masato
> >> >>
> >> >> Index: stdlib/malloc.c
> >> >> ===================================================================
> >> >> RCS file: /cvs/src/lib/libc/stdlib/malloc.c,v
> >> >> retrieving revision 1.289
> >> >> diff -u -p -r1.289 malloc.c
> >> >> --- stdlib/malloc.c 30 Jun 2023 06:24:58 -0000 1.289
> >> >> +++ stdlib/malloc.c 7 Sep 2023 20:30:01 -0000
> >> >> @@ -344,6 +344,22 @@ wrterror(struct dir_info *d, char *msg,
> >> >> }
> >> >>
> >> >> static void
> >> >> +wrtwarning(char *func, char *msg, ...)
> >> >> +{
> >> >> + int saved_errno = errno;
> >> >> + va_list ap;
> >> >> +
> >> >> + dprintf(STDERR_FILENO, "%s(%d) in %s(): ", __progname,
> >> >> + getpid(), func == NULL ? func : "unknown");
> >> >
> >> > func != NULL ? func : "unknown"
> >> >
> >> > I will take a break and re-create the diff.
> >>
> >> I have fixed the diff.
> >>
> >> $ MALLOC_OPTIONS=D ktrace -tu ./a.out 1073500000
> >> a.out(34886) in putleakinfo(): Cannot allocate memory
> >> $ kdump -u malloc
> >> ******** Start dump a.out *******
> >> M=8 I=1 F=0 U=0 J=1 R=0 X=0 C=0 cache=64 G=0
> >> Leak report:
> >> f sum # avg
> >>
> >> ******** End dump a.out *******
> >> $ ls -l ktrace.out
> >> -rw------- 1 asou asou 734 Sep 8 09:59 ktrace.out
> >>
> >> comments, ok?
> >> --
> >> ASOU Masato
> >>
> >> Index: stdlib/malloc.c
> >> ===================================================================
> >> RCS file: /cvs/src/lib/libc/stdlib/malloc.c,v
> >> retrieving revision 1.289
> >> diff -u -p -r1.289 malloc.c
> >> --- stdlib/malloc.c 30 Jun 2023 06:24:58 -0000 1.289
> >> +++ stdlib/malloc.c 8 Sep 2023 00:55:13 -0000
> >> @@ -344,6 +344,22 @@ wrterror(struct dir_info *d, char *msg,
> >> }
> >>
> >> static void
> >> +wrtwarning(const char *func, char *msg, ...)
> >> +{
> >> + int saved_errno = errno;
> >> + va_list ap;
> >> +
> >> + dprintf(STDERR_FILENO, "%s(%d) in %s(): ", __progname,
> >> + getpid(), func != NULL ? func : "unknown");
> >> + va_start(ap, msg);
> >> + vdprintf(STDERR_FILENO, msg, ap);
> >> + va_end(ap);
> >> + dprintf(STDERR_FILENO, "\n");
> >> +
> >> + errno = saved_errno;
> >> +}
> >> +
> >> +static void
> >> rbytes_init(struct dir_info *d)
> >> {
> >> arc4random_buf(d->rbytes, sizeof(d->rbytes));
> >> @@ -2353,8 +2369,10 @@ putleakinfo(struct leaktree *leaks, void
> >> if (page == NULL ||
> >> used >= MALLOC_PAGESIZE / sizeof(struct leaknode)) {
> >> page = MMAP(MALLOC_PAGESIZE, 0);
> >> - if (page == MAP_FAILED)
> >> + if (page == MAP_FAILED) {
> >> + wrtwarning(__func__, strerror(errno));
> >> return;
> >> + }
> >> used = 0;
> >> }
> >> p = &page[used++];
> >
