src/hotspot/os/bsd/os_bsd.cpp

rev 51957 : 8224221: add memprotect calls to event log
Reviewed-by: dholmes, mdoerr

*** 1954,1963 ****
--- 1954,1964 ----
  //       problem.
  bool os::pd_commit_memory(char* addr, size_t size, bool exec) {
    int prot = exec ? PROT_READ|PROT_WRITE|PROT_EXEC : PROT_READ|PROT_WRITE;
  #ifdef __OpenBSD__
    // XXX: Work-around mmap/MAP_FIXED bug temporarily on OpenBSD
+   Events::log(NULL, "Protecting memory [" INTPTR_FORMAT "," INTPTR_FORMAT "] with protection modes %x", p2i(addr), p2i(addr+size), prot);
    if (::mprotect(addr, size, prot) == 0) {
      return true;
    }
  #else
    uintptr_t res = (uintptr_t) ::mmap(addr, size, prot,
*** 2038,2047 ****
--- 2039,2049 ----
  
  
  bool os::pd_uncommit_memory(char* addr, size_t size) {
  #ifdef __OpenBSD__
    // XXX: Work-around mmap/MAP_FIXED bug temporarily on OpenBSD
+   Events::log(NULL, "Protecting memory [" INTPTR_FORMAT "," INTPTR_FORMAT "] with PROT_NONE", p2i(addr), p2i(addr+size));
    return ::mprotect(addr, size, PROT_NONE) == 0;
  #else
    uintptr_t res = (uintptr_t) ::mmap(addr, size, PROT_NONE,
                                       MAP_PRIVATE|MAP_FIXED|MAP_NORESERVE|MAP_ANONYMOUS, -1, 0);
    return res  != (uintptr_t) MAP_FAILED;
*** 2106,2115 ****
--- 2108,2118 ----
    // protection of malloc'ed or statically allocated memory). Check the
    // caller if you hit this assert.
    assert(addr == bottom, "sanity check");
  
    size = align_up(pointer_delta(addr, bottom, 1) + size, os::Bsd::page_size());
+   Events::log(NULL, "Protecting memory [" INTPTR_FORMAT "," INTPTR_FORMAT "] with protection modes %x", p2i(bottom), p2i(bottom+size), prot);
    return ::mprotect(bottom, size, prot) == 0;
  }
  
  // Set protections specified
  bool os::protect_memory(char* addr, size_t bytes, ProtType prot,