diff options
Diffstat (limited to 'unix/mmap_unix_test.go')
| -rw-r--r-- | unix/mmap_unix_test.go | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/unix/mmap_unix_test.go b/unix/mmap_unix_test.go index a2ec6c8..d51f690 100644 --- a/unix/mmap_unix_test.go +++ b/unix/mmap_unix_test.go @@ -15,11 +15,21 @@ import ( ) func TestMmap(t *testing.T) { - b, err := unix.Mmap(-1, 0, unix.Getpagesize(), unix.PROT_NONE, unix.MAP_ANON|unix.MAP_PRIVATE) + mmapProt := unix.PROT_NONE + mprotectProt := unix.PROT_READ | unix.PROT_WRITE + // On NetBSD PAX mprotect prohibits setting protection bits + // missing from the original mmap call unless explicitly + // requested with PROT_MPROTECT. + if runtime.GOOS == "netbsd" { + // PROT_MPROTECT(x) is defined as ((x) << 3): + // https://github.com/NetBSD/src/blob/aba449a55bf91b44bc68f542edd9afa341962b89/sys/sys/mman.h#L73 + mmapProt = mprotectProt << 3 + } + b, err := unix.Mmap(-1, 0, unix.Getpagesize(), mmapProt, unix.MAP_ANON|unix.MAP_PRIVATE) if err != nil { t.Fatalf("Mmap: %v", err) } - if err := unix.Mprotect(b, unix.PROT_READ|unix.PROT_WRITE); err != nil { + if err := unix.Mprotect(b, mprotectProt); err != nil { t.Fatalf("Mprotect: %v", err) } |