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8224221: add memprotect calls to event log

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Reviewed-by: dholmes, mdoerr
This commit is contained in:
Matthias Baesken 2019-05-23 15:15:01 +02:00
parent b77c2ea4e9
commit 247729cdd7
6 changed files with 16 additions and 7 deletions
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3
src/hotspot/os/bsd/os_bsd.cpp
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@ -1933,6 +1933,7 @@ 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;
}
@ -2017,6 +2018,7 @@ char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info
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,
@ -2085,6 +2087,7 @@ static bool bsd_mprotect(char* addr, size_t size, int prot) {
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;
}