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[scudo] Add noreturn/pragma to suppress compiler warnings 

Differential Revision: https://reviews.llvm.org/D121853
This commit is contained in:
Dominic Chen 2022-03-16 13:42:49 -07:00
parent db13f5a1b0
commit 686dcbe8b0
1 changed files with 16 additions and 13 deletions
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29
compiler-rt/lib/scudo/standalone/memtag.h
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@ -41,16 +41,16 @@ inline uint8_t extractTag(uptr Ptr) { return (Ptr >> 56) & 0xf; }
inline constexpr bool archSupportsMemoryTagging() { return false; }
inline uptr archMemoryTagGranuleSize() {
inline NORETURN uptr archMemoryTagGranuleSize() {
UNREACHABLE("memory tagging not supported");
}
inline uptr untagPointer(uptr Ptr) {
inline NORETURN uptr untagPointer(uptr Ptr) {
(void)Ptr;
UNREACHABLE("memory tagging not supported");
}
inline uint8_t extractTag(uptr Ptr) {
inline NORETURN uint8_t extractTag(uptr Ptr) {
(void)Ptr;
UNREACHABLE("memory tagging not supported");
}
@ -109,11 +109,11 @@ inline void enableSystemMemoryTaggingTestOnly() {
inline bool systemSupportsMemoryTagging() { return false; }
inline bool systemDetectsMemoryTagFaultsTestOnly() {
inline NORETURN bool systemDetectsMemoryTagFaultsTestOnly() {
UNREACHABLE("memory tagging not supported");
}
inline void enableSystemMemoryTaggingTestOnly() {
inline NORETURN void enableSystemMemoryTaggingTestOnly() {
UNREACHABLE("memory tagging not supported");
}
@ -255,15 +255,15 @@ inline uptr loadTag(uptr Ptr) {
#else
inline bool systemSupportsMemoryTagging() {
inline NORETURN bool systemSupportsMemoryTagging() {
UNREACHABLE("memory tagging not supported");
}
inline bool systemDetectsMemoryTagFaultsTestOnly() {
inline NORETURN bool systemDetectsMemoryTagFaultsTestOnly() {
UNREACHABLE("memory tagging not supported");
}
inline void enableSystemMemoryTaggingTestOnly() {
inline NORETURN void enableSystemMemoryTaggingTestOnly() {
UNREACHABLE("memory tagging not supported");
}
@ -271,41 +271,44 @@ struct ScopedDisableMemoryTagChecks {
ScopedDisableMemoryTagChecks() {}
};
inline uptr selectRandomTag(uptr Ptr, uptr ExcludeMask) {
inline NORETURN uptr selectRandomTag(uptr Ptr, uptr ExcludeMask) {
(void)Ptr;
(void)ExcludeMask;
UNREACHABLE("memory tagging not supported");
}
inline uptr addFixedTag(uptr Ptr, uptr Tag) {
inline NORETURN uptr addFixedTag(uptr Ptr, uptr Tag) {
(void)Ptr;
(void)Tag;
UNREACHABLE("memory tagging not supported");
}
inline uptr storeTags(uptr Begin, uptr End) {
inline NORETURN uptr storeTags(uptr Begin, uptr End) {
(void)Begin;
(void)End;
UNREACHABLE("memory tagging not supported");
}
inline void storeTag(uptr Ptr) {
inline NORETURN void storeTag(uptr Ptr) {
(void)Ptr;
UNREACHABLE("memory tagging not supported");
}
inline uptr loadTag(uptr Ptr) {
inline NORETURN uptr loadTag(uptr Ptr) {
(void)Ptr;
UNREACHABLE("memory tagging not supported");
}
#endif
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wmissing-noreturn"
inline void setRandomTag(void *Ptr, uptr Size, uptr ExcludeMask,
uptr *TaggedBegin, uptr *TaggedEnd) {
*TaggedBegin = selectRandomTag(reinterpret_cast<uptr>(Ptr), ExcludeMask);
*TaggedEnd = storeTags(*TaggedBegin, *TaggedBegin + Size);
}
#pragma clang diagnostic pop
inline void *untagPointer(void *Ptr) {
return reinterpret_cast<void *>(untagPointer(reinterpret_cast<uptr>(Ptr)));