diff options
Diffstat (limited to 'posix/execl.c')
| -rw-r--r-- | posix/execl.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/posix/execl.c b/posix/execl.c index 13f8b39..5ea1c4e 100644 --- a/posix/execl.c +++ b/posix/execl.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1991, 1992, 1994, 1997, 1998 Free Software Foundation, Inc. +/* Copyright (C) 1991, 92, 94, 97, 98, 99 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -22,6 +22,8 @@ #include <stddef.h> #include <string.h> +#include <stackinfo.h> + #ifndef HAVE_GNU_LD # define __environ environ #endif @@ -46,16 +48,21 @@ execl (const char *path, const char *arg, ...) { const char **nptr = alloca ((argv_max *= 2) * sizeof (const char *)); +#ifndef _STACK_GROWS_UP if ((char *) nptr + argv_max == (char *) argv) { /* Stack grows down. */ argv = (const char **) memcpy (nptr, argv, i); argv_max += i; } - else if ((char *) argv + i == (char *) nptr) + else +#endif +#ifndef _STACK_GROWS_DOWN + if ((char *) argv + i == (char *) nptr) /* Stack grows up. */ argv_max += i; else +#endif /* We have a hole in the stack. */ argv = (const char **) memcpy (nptr, argv, i); } |