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[NFC][scudo] Add paramenters DCHECKs 

Reviewed By: hctim

Differential Revision: https://reviews.llvm.org/D103042
This commit is contained in:
Vitaly Buka 2021-05-24 13:12:47 -07:00
parent e5b66a3734
commit a0169b2ed1
1 changed files with 8 additions and 2 deletions
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10
compiler-rt/lib/scudo/standalone/memtag.h
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@ -146,10 +146,13 @@ inline uptr selectRandomTag(uptr Ptr, uptr ExcludeMask) {
return TaggedPtr;
}
inline uptr addFixedTag(uptr Ptr, uptr Tag) { return Ptr | (Tag << 56); }
inline uptr addFixedTag(uptr Ptr, uptr Tag) {
DCHECK_LT(Tag, 16);
return Ptr | (Tag << 56);
}
inline uptr storeTags(uptr Begin, uptr End) {
DCHECK(Begin % 16 == 0);
DCHECK_EQ(0, Begin % 16);
uptr LineSize, Next, Tmp;
__asm__ __volatile__(
R"(
@ -209,10 +212,12 @@ inline uptr storeTags(uptr Begin, uptr End) {
[Tmp] "=&r"(Tmp)
: [End] "r"(End)
: "memory");
DCHECK_EQ(0, Begin % 16);
return Begin;
}
inline void storeTag(uptr Ptr) {
DCHECK_EQ(0, Ptr % 16);
__asm__ __volatile__(R"(
.arch_extension memtag
stg %0, [%0]
@ -223,6 +228,7 @@ inline void storeTag(uptr Ptr) {
}
inline uptr loadTag(uptr Ptr) {
DCHECK_EQ(0, Ptr % 16);
uptr TaggedPtr = Ptr;
__asm__ __volatile__(
R"(