diff options
Diffstat (limited to 'sysdeps/mach')
| -rw-r--r-- | sysdeps/mach/hurd/bits/mman_ext.h | 1 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/dl-sysdep.c | 8 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/mmap.c | 10 |
3 files changed, 12 insertions, 7 deletions
diff --git a/sysdeps/mach/hurd/bits/mman_ext.h b/sysdeps/mach/hurd/bits/mman_ext.h index f022826eee..bbb94743e9 100644 --- a/sysdeps/mach/hurd/bits/mman_ext.h +++ b/sysdeps/mach/hurd/bits/mman_ext.h @@ -22,4 +22,5 @@ #ifdef __USE_GNU # define SHM_ANON ((const char *) 1) +# define MAP_32BIT 0x1000 #endif /* __USE_GNU */ diff --git a/sysdeps/mach/hurd/dl-sysdep.c b/sysdeps/mach/hurd/dl-sysdep.c index 6e167e12d8..d7b309e05d 100644 --- a/sysdeps/mach/hurd/dl-sysdep.c +++ b/sysdeps/mach/hurd/dl-sysdep.c @@ -451,7 +451,7 @@ __mmap (void *addr, size_t len, int prot, int flags, int fd, off_t offset) { error_t err; vm_prot_t vmprot; - vm_address_t mapaddr; + vm_address_t mapaddr, mask; mach_port_t memobj_rd, memobj_wr; vmprot = VM_PROT_NONE; @@ -462,6 +462,8 @@ __mmap (void *addr, size_t len, int prot, int flags, int fd, off_t offset) if (prot & PROT_EXEC) vmprot |= VM_PROT_EXECUTE; + mask = (flags & MAP_32BIT) ? ~(vm_address_t) 0x7FFFFFFF : 0; + if (flags & MAP_ANON) memobj_rd = MACH_PORT_NULL; else @@ -476,7 +478,7 @@ __mmap (void *addr, size_t len, int prot, int flags, int fd, off_t offset) mapaddr = (vm_address_t) addr; err = __vm_map (__mach_task_self (), - &mapaddr, (vm_size_t) len, 0, + &mapaddr, (vm_size_t) len, mask, !(flags & MAP_FIXED), memobj_rd, (vm_offset_t) offset, @@ -491,7 +493,7 @@ __mmap (void *addr, size_t len, int prot, int flags, int fd, off_t offset) if (! err) err = __vm_map (__mach_task_self (), &mapaddr, (vm_size_t) len, - 0, + mask, !(flags & MAP_FIXED), memobj_rd, (vm_offset_t) offset, flags & (MAP_COPY|MAP_PRIVATE), diff --git a/sysdeps/mach/hurd/mmap.c b/sysdeps/mach/hurd/mmap.c index 20a41e36d8..c3cc18560c 100644 --- a/sysdeps/mach/hurd/mmap.c +++ b/sysdeps/mach/hurd/mmap.c @@ -36,7 +36,7 @@ __mmap (void *addr, size_t len, int prot, int flags, int fd, off_t offset) error_t err; vm_prot_t vmprot, max_vmprot; memory_object_t memobj; - vm_address_t mapaddr; + vm_address_t mapaddr, mask; boolean_t copy; mapaddr = (vm_address_t) addr; @@ -55,6 +55,8 @@ __mmap (void *addr, size_t len, int prot, int flags, int fd, off_t offset) copy = ! (flags & MAP_SHARED); + mask = (flags & MAP_32BIT) ? ~(vm_address_t) 0x7FFFFFFF : 0; + switch (flags & MAP_TYPE) { default: @@ -134,7 +136,7 @@ __mmap (void *addr, size_t len, int prot, int flags, int fd, off_t offset) max_vmprot = VM_PROT_ALL; err = __vm_map (__mach_task_self (), - &mapaddr, (vm_size_t) len, (vm_address_t) 0, + &mapaddr, (vm_size_t) len, mask, mapaddr == 0, memobj, (vm_offset_t) offset, copy, vmprot, max_vmprot, @@ -149,7 +151,7 @@ __mmap (void *addr, size_t len, int prot, int flags, int fd, off_t offset) err = __vm_deallocate (__mach_task_self (), mapaddr, len); if (! err) err = __vm_map (__mach_task_self (), - &mapaddr, (vm_size_t) len, (vm_address_t) 0, + &mapaddr, (vm_size_t) len, mask, 0, memobj, (vm_offset_t) offset, copy, vmprot, max_vmprot, copy ? VM_INHERIT_COPY : VM_INHERIT_SHARE); @@ -159,7 +161,7 @@ __mmap (void *addr, size_t len, int prot, int flags, int fd, off_t offset) { if (mapaddr != 0 && (err == KERN_NO_SPACE || err == KERN_INVALID_ADDRESS)) err = __vm_map (__mach_task_self (), - &mapaddr, (vm_size_t) len, (vm_address_t) 0, + &mapaddr, (vm_size_t) len, mask, 1, memobj, (vm_offset_t) offset, copy, vmprot, max_vmprot, copy ? VM_INHERIT_COPY : VM_INHERIT_SHARE); |