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8067015: Implement os::pd_map_memory() on AIX

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Reviewed-by: dholmes
This commit is contained in:
Volker Simonis 2014-12-10 19:12:27 +01:00
parent db929c3598
commit 7d42a4167f
1 changed files with 23 additions and 2 deletions
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25
hotspot/src/os/aix/vm/os_aix.cpp
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@ -4144,8 +4144,29 @@ int os::available(int fd, jlong *bytes) {
char* os::pd_map_memory(int fd, const char* file_name, size_t file_offset,
char *addr, size_t bytes, bool read_only,
bool allow_exec) {
Unimplemented();
return NULL;
int prot;
int flags = MAP_PRIVATE;
if (read_only) {
prot = PROT_READ;
} else {
prot = PROT_READ | PROT_WRITE;
}
if (allow_exec) {
prot |= PROT_EXEC;
}
if (addr != NULL) {
flags |= MAP_FIXED;
}
char* mapped_address = (char*)mmap(addr, (size_t)bytes, prot, flags,
fd, file_offset);
if (mapped_address == MAP_FAILED) {
return NULL;
}
return mapped_address;
}