Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/os/linux/vm/os_linux.cpp
src/os/linux/vm/os_linux.cpp
- changeset 3612
- 9eaf473fff9b
- parent 3481
- de268c8a8075
- child 3640
- cf956638b844
equal
deleted
inserted
replaced
| 3592:701a83c86f28 | 3612:9eaf473fff9b |
|---|---|
| 4688 // Map a block of memory. | 4688 // Map a block of memory. |
| 4689 char* os::map_memory(int fd, const char* file_name, size_t file_offset, | 4689 char* os::map_memory(int fd, const char* file_name, size_t file_offset, |
| 4690 char *addr, size_t bytes, bool read_only, | 4690 char *addr, size_t bytes, bool read_only, |
| 4691 bool allow_exec) { | 4691 bool allow_exec) { |
| 4692 int prot; | 4692 int prot; |
| 4693 int flags; | 4693 int flags = MAP_PRIVATE; |
| 4694 | 4694 |
| 4695 if (read_only) { | 4695 if (read_only) { |
| 4696 prot = PROT_READ; | 4696 prot = PROT_READ; |
| 4697 flags = MAP_SHARED; | |
| 4698 } else { | 4697 } else { |
| 4699 prot = PROT_READ | PROT_WRITE; | 4698 prot = PROT_READ | PROT_WRITE; |
| 4700 flags = MAP_PRIVATE; | |
| 4701 } | 4699 } |
| 4702 | 4700 |
| 4703 if (allow_exec) { | 4701 if (allow_exec) { |
| 4704 prot |= PROT_EXEC; | 4702 prot |= PROT_EXEC; |
| 4705 } | 4703 } |
