From 0650a4ee30e34ba039940032fdff3719c1b4b000 Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Sun, 20 Dec 2020 01:41:55 +0100 Subject: vm_map: Fix taking into account high bits in mask glibc's sysdeps/mach/hurd/dl-sysdep.c has been wanting to use this for decades. * include/string.h (ffs): New declaration. * vm/vm_map.c: Include . (vm_map_find_entry_anywhere): Separate out high bits from mask, to compute the maximum offset instead of map->max_offset. * doc/mach.texi (vm_map): Update documentation accordingly. --- include/string.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/string.h') diff --git a/include/string.h b/include/string.h index c31b4292..cddcbeb9 100644 --- a/include/string.h +++ b/include/string.h @@ -54,4 +54,6 @@ extern size_t strlen (const char *s) __attribute__ ((pure)); extern char *strstr(const char *haystack, const char *needle); +extern int ffs(int i); + #endif /* _MACH_SA_SYS_STRING_H_ */ -- cgit v1.2.3