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8284178: os::commit_memory() should assert the given range

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Reviewed-by: shade
This commit is contained in:
Thomas Stuefe 2022-04-10 16:58:49 +00:00
parent 37e28aea27
commit 34914f12be
1 changed files with 11 additions and 0 deletions
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11
src/hotspot/share/runtime/os.cpp
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@ -1675,7 +1675,13 @@ char* os::attempt_reserve_memory_at(char* addr, size_t bytes, bool executable) {
return result;
}
static void assert_nonempty_range(const char* addr, size_t bytes) {
assert(addr != nullptr && bytes > 0, "invalid range [" PTR_FORMAT ", " PTR_FORMAT ")",
p2i(addr), p2i(addr) + bytes);
}
bool os::commit_memory(char* addr, size_t bytes, bool executable) {
assert_nonempty_range(addr, bytes);
bool res = pd_commit_memory(addr, bytes, executable);
if (res) {
MemTracker::record_virtual_memory_commit((address)addr, bytes, CALLER_PC);
@ -1685,6 +1691,7 @@ bool os::commit_memory(char* addr, size_t bytes, bool executable) {
bool os::commit_memory(char* addr, size_t size, size_t alignment_hint,
bool executable) {
assert_nonempty_range(addr, size);
bool res = os::pd_commit_memory(addr, size, alignment_hint, executable);
if (res) {
MemTracker::record_virtual_memory_commit((address)addr, size, CALLER_PC);
@ -1694,17 +1701,20 @@ bool os::commit_memory(char* addr, size_t size, size_t alignment_hint,
void os::commit_memory_or_exit(char* addr, size_t bytes, bool executable,
const char* mesg) {
assert_nonempty_range(addr, bytes);
pd_commit_memory_or_exit(addr, bytes, executable, mesg);
MemTracker::record_virtual_memory_commit((address)addr, bytes, CALLER_PC);
}
void os::commit_memory_or_exit(char* addr, size_t size, size_t alignment_hint,
bool executable, const char* mesg) {
assert_nonempty_range(addr, size);
os::pd_commit_memory_or_exit(addr, size, alignment_hint, executable, mesg);
MemTracker::record_virtual_memory_commit((address)addr, size, CALLER_PC);
}
bool os::uncommit_memory(char* addr, size_t bytes, bool executable) {
assert_nonempty_range(addr, bytes);
bool res;
if (MemTracker::enabled()) {
Tracker tkr(Tracker::uncommit);
@ -1719,6 +1729,7 @@ bool os::uncommit_memory(char* addr, size_t bytes, bool executable) {
}
bool os::release_memory(char* addr, size_t bytes) {
assert_nonempty_range(addr, bytes);
bool res;
if (MemTracker::enabled()) {
// Note: Tracker contains a ThreadCritical.