diff options
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | sysdeps/generic/bp-checks.h | 9 | ||||
| -rw-r--r-- | sysdeps/unix/make-syscalls.sh | 4 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/syscalls.list | 2 |
4 files changed, 19 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog index 6b4af7b8e6..399a35e657 100644 --- a/ChangeLog +++ b/ChangeLog @@ -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. diff --git a/sysdeps/generic/bp-checks.h b/sysdeps/generic/bp-checks.h index 01acf9f4ae..41ffad71e1 100644 --- a/sysdeps/generic/bp-checks.h +++ b/sysdeps/generic/bp-checks.h @@ -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__ */ diff --git a/sysdeps/unix/make-syscalls.sh b/sysdeps/unix/make-syscalls.sh index 728c1e7471..37890b458e 100644 --- a/sysdeps/unix/make-syscalls.sh +++ b/sysdeps/unix/make-syscalls.sh @@ -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' \ diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list index bff42d8a2b..9dd5f4ca31 100644 --- a/sysdeps/unix/sysv/linux/syscalls.list +++ b/sysdeps/unix/sysv/linux/syscalls.list @@ -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 |