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8302102: Disable ASan for SafeFetch and os::print_hex_dump

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Reviewed-by: dholmes, stuefe
This commit is contained in:
Justin King 2023-02-15 06:42:27 +00:00 • committed by Thomas Stuefe
parent 9ccf8ad91f
commit 98a392c4fc
4 changed files with 35 additions and 8 deletions
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18
src/hotspot/share/runtime/os.cpp
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@ -60,6 +60,7 @@
#include "runtime/threadSMR.hpp"
#include "runtime/vmOperations.hpp"
#include "runtime/vm_version.hpp"
#include "sanitizers/address.hpp"
#include "services/attachListener.hpp"
#include "services/mallocTracker.hpp"
#include "services/mallocHeader.inline.hpp"
@ -942,6 +943,16 @@ bool os::print_function_and_library_name(outputStream* st,
return have_function_name || have_library_name;
}
ATTRIBUTE_NO_ASAN static void print_hex_readable_pointer(outputStream* st, address p,
int unitsize) {
switch (unitsize) {
case 1: st->print("%02x", *(u1*)p); break;
case 2: st->print("%04x", *(u2*)p); break;
case 4: st->print("%08x", *(u4*)p); break;
case 8: st->print("%016" FORMAT64_MODIFIER "x", *(u8*)p); break;
}
}
void os::print_hex_dump(outputStream* st, address start, address end, int unitsize,
int bytes_per_line, address logical_start) {
assert(unitsize == 1 || unitsize == 2 || unitsize == 4 || unitsize == 8, "just checking");
@ -960,12 +971,7 @@ void os::print_hex_dump(outputStream* st, address start, address end, int unitsi
st->print(PTR_FORMAT ": ", p2i(logical_p));
while (p < end) {
if (is_readable_pointer(p)) {
switch (unitsize) {
case 1: st->print("%02x", *(u1*)p); break;
case 2: st->print("%04x", *(u2*)p); break;
case 4: st->print("%08x", *(u4*)p); break;
case 8: st->print("%016" FORMAT64_MODIFIER "x", *(u8*)p); break;
}
print_hex_readable_pointer(st, p, unitsize);
} else {
st->print("%*.*s", 2*unitsize, 2*unitsize, "????????????????");
}