uptr map_size = shadow_size + left_padding + alignment;
uptr map_start = (uptr)MmapNoAccess(map_size);
- CHECK_NE(map_start, ~(uptr)0);
+ CHECK(map_start);
uptr shadow_start = RoundUpTo(map_start + left_padding, alignment);
UnmapFromTo(map_start, shadow_start - left_padding);
uptr map_size = shadow_size + left_padding + alignment;
uptr map_start = (uptr)MmapNoAccess(map_size);
- CHECK_NE(map_start, ~(uptr)0);
+ CHECK(map_start);
uptr shadow_start = RoundUpTo(map_start + left_padding, alignment);
uptr shadow_end = shadow_start + shadow_size;
const uptr map_size = shadow_size + left_padding + alignment;
const uptr map_start = (uptr)MmapNoAccess(map_size);
- CHECK_NE(map_start, ~(uptr)0);
+ CHECK(map_start);
const uptr shadow_start = RoundUpTo(map_start + left_padding, alignment);
} else {
NonConstSpaceBeg = address_range.Init(TotalSpaceSize,
PrimaryAllocatorName);
- CHECK_NE(NonConstSpaceBeg, ~(uptr)0);
+ CHECK(NonConstSpaceBeg);
}
SetReleaseToOSIntervalMs(release_to_os_interval_ms);
MapWithCallbackOrDie(SpaceEnd(), AdditionalSize());
#if SANITIZER_MAC
#include "sanitizer_mac.h"
-#include <sys/mman.h>
-
namespace __sanitizer {
void RestrictMemoryToMaxAddress(uptr max_address) {
uptr size_to_mmap = GetMaxUserVirtualAddress() + 1 - max_address;
void *res = MmapFixedNoAccess(max_address, size_to_mmap, "high gap");
- CHECK(res != MAP_FAILED);
+ CHECK(res);
}
} // namespace __sanitizer
unsigned flags = MAP_PRIVATE | MAP_FIXED | MAP_NORESERVE;
if (fd == -1) flags |= MAP_ANON;
- return (void *)internal_mmap((void *)fixed_addr, size, PROT_NONE, flags, fd,
- 0);
+ uptr p = internal_mmap((void *)fixed_addr, size, PROT_NONE, flags, fd, 0);
+ if (internal_iserror(p))
+ return nullptr;
+ return (void *)p;
}
void *MmapNoAccess(uptr size) {
unsigned flags = MAP_PRIVATE | MAP_ANON | MAP_NORESERVE;
- return (void *)internal_mmap(nullptr, size, PROT_NONE, flags, -1, 0);
+ uptr p = internal_mmap(nullptr, size, PROT_NONE, flags, -1, 0);
+ if (internal_iserror(p))
+ return nullptr;
+ return (void *)p;
}
// This function is defined elsewhere if we intercepted pthread_attr_getstack.
ReservedAddressRange AddressRange;
uptr ReservedBeg = AddressRange.Init(ReservedSize, SecondaryAllocatorName);
- if (UNLIKELY(ReservedBeg == ~static_cast<uptr>(0)))
+ if (UNLIKELY(!ReservedBeg))
return nullptr;
// A page-aligned pointer is assumed after that, so check it now.
DCHECK(IsAligned(ReservedBeg, PageSize));