diff options
Diffstat (limited to 'lib/libc/sys/mmap.2')
| -rw-r--r-- | lib/libc/sys/mmap.2 | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/libc/sys/mmap.2 b/lib/libc/sys/mmap.2 index e629999c8d1..e8783ed672a 100644 --- a/lib/libc/sys/mmap.2 +++ b/lib/libc/sys/mmap.2 @@ -152,9 +152,19 @@ should be done. Upon successful completion, .Nm mmap returns a pointer to the mapped region. -Otherwise, a value of -1 is returned and +Otherwise, a value of +.Dv MAP_FAILED +is returned and .Va errno is set to indicate the error. +The symbol +.Dv MAP_FAILED +is defined in the header +.Ao Pa sys/mman.h Ac . +No successful return from +.Fn mmap +will return the value +.Dv MAP_FAILED . .Sh ERRORS .Fn Mmap will fail if: |