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* sysdeps/unix/sysv/linux/syscalls.list (mincore): Fix arg signature. 

* sysdeps/unix/make-syscalls.sh: New signature keyletter `V'. 
* sysdeps/generic/bp-checks.h (CHECK_N_PAGES): New macro.
2000-09-08  Greg McGary  <greg@mcgary.org>

	* sysdeps/unix/sysv/linux/syscalls.list (mincore): Fix arg signature.
	* sysdeps/unix/make-syscalls.sh: New signature keyletter `V'.
	* sysdeps/generic/bp-checks.h (CHECK_N_PAGES): New macro.
This commit is contained in:
Greg McGary 2000-09-08 08:41:45 +00:00
parent 9b4a6eac68
commit e694422de5
4 changed files with 19 additions and 2 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2000-09-08 Greg McGary <greg@mcgary.org>
* sysdeps/unix/sysv/linux/syscalls.list (mincore): Fix arg signature.
* sysdeps/unix/make-syscalls.sh: New signature keyletter `V'.
* sysdeps/generic/bp-checks.h (CHECK_N_PAGES): New macro.
2000-09-08 Andreas Jaeger <aj@suse.de>
* sysdeps/unix/sysv/linux/arm/lockf64.c: New file.

9
sysdeps/generic/bp-checks.h
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@ -90,6 +90,14 @@ extern void *__unbounded __ubp_memchr (const void *__unbounded, int, unsigned);
(((CMD) == F_GETLK || (CMD) == F_SETLK || (CMD) == F_SETLKW) \
? CHECK_1 ((struct flock *) ARG) : (unsigned long) (ARG))
/* Check bounds of an array of mincore residency-status flags that
cover a region of NBYTES. Such a vector occupies one byte per page
of memory. */
# define CHECK_N_PAGES(ARG, NBYTES) \
({ int _page_size_ = sysconf (_SC_PAGE_SIZE); \
CHECK_N ((const char *) (ARG), \
((NBYTES) + _page_size_ - 1) / _page_size_); })
/* Return a bounded pointer with value PTR that satisfies CHECK_N (PTR, N). */
# define BOUNDED_N(PTR, N) \
({ __typeof (PTR) __bounded _p_; \
@ -113,6 +121,7 @@ extern void *__unbounded __ubp_memchr (const void *__unbounded, int, unsigned);
# define CHECK_SIGSET_NULL_OK(SET) (SET)
# define CHECK_IOCTL(ARG, CMD) (ARG)
# define CHECK_FCNTL(ARG, CMD) (ARG)
# define CHECK_N_PAGES(ARG, NBYTES) (ARG)
# define BOUNDED_N(PTR, N) (PTR)
#endif /* !__BOUNDED_POINTERS__ */

4
sysdeps/unix/make-syscalls.sh
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@ -21,6 +21,7 @@
# s: non-NULL string (e.g., 1st arg to open)
# S: optionally-NULL string (e.g., 1st arg to acct)
# v: vararg scalar (e.g., optional 3rd arg to open)
# V: byte-per-page vector (3rd arg to mincore)
# W: wait status, optionally-NULL pointer to int (e.g., 2nd arg of wait4)
ptr='[abBfFINpPsSW]' # all pointer keyletters
@ -232,7 +233,7 @@ shared-only-routines += $file
# generate extern decls of dummy variables for each arg
echo " echo '`echo $args | \
sed -e 's/<\('$typ'[1-9]\)>/extern \1, \1v;/g' \
-e 's/<\([abBFIsS][1-9]\)>/extern char \1v;/g' \
-e 's/<\([abBFIsSV][1-9]\)>/extern char \1v;/g' \
-e 's/<\([Wv][1-9]\)>/extern int \1v;/g'` \\'; \\"
# generate bounded-pointer thunk declarator
@ -255,6 +256,7 @@ shared-only-routines += $file
sed -e 's/<b0>/BOUNDED_N (/' \
-e 's/<.0>//'`($callname) (`echo $arglist | \
sed -e 's/<\(a[1-9]\)>/__ptrvalue (\1a)/g' \
-e 's/<\(n[1-9]\)>, <\(V[1-9]\)>/\1a, CHECK_N_PAGES (\2a, \1a)/g' \
-e 's/<\(b[1-9]\)>, <\(n[1-9]\)>/CHECK_N (\1a, \2a), \2a/g' \
-e 's/<\(b[1-9]\)>, <\(N[1-9]\)>/CHECK_N (\1a, *CHECK_1 (\2a)), __ptrvalue (\2a)/g' \
-e 's/<\(B[1-9]\)>, <\(n[1-9]\)>/CHECK_N_NULL_OK (\1a, \2a), \2a/g' \

2
sysdeps/unix/sysv/linux/syscalls.list
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@ -22,7 +22,7 @@ iopl - iopl i:i iopl
klogctl EXTRA syslog i:isi klogctl
lchown - lchown i:sii __lchown lchown
madvise - madvise i:pii posix_madvise madvise
mincore - mincore i:iip mincore
mincore - mincore i:anV mincore
mlock EXTRA mlock i:bn __mlock mlock
mlockall EXTRA mlockall i:i __mlockall mlockall
mmap - mmap b:aniiii __mmap mmap