RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-25 20:23:11 +01:00
Code Issues Projects Releases Wiki Activity

[RISCV][ASAN] instrumentation pass now uses proper shadow offset

Browse Source 
[10/11] patch series to port ASAN for riscv64

Depends On D87580

Reviewed By: eugenis

Differential Revision: https://reviews.llvm.org/D87581
This commit is contained in:
Anatoly Parshintsev 2020-10-04 15:26:50 +03:00 committed by apink
parent 09fdde59e8
commit b8a39db2c9
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
lib/Transforms/Instrumentation/AddressSanitizer.cpp
View File

@ -105,6 +105,7 @@ static const uint64_t kSystemZ_ShadowOffset64 = 1ULL << 52;
static const uint64_t kMIPS32_ShadowOffset32 = 0x0aaa0000;
static const uint64_t kMIPS64_ShadowOffset64 = 1ULL << 37;
static const uint64_t kAArch64_ShadowOffset64 = 1ULL << 36;
static const uint64_t kRISCV64_ShadowOffset64 = 0x20000000;
static const uint64_t kFreeBSD_ShadowOffset32 = 1ULL << 30;
static const uint64_t kFreeBSD_ShadowOffset64 = 1ULL << 46;
static const uint64_t kNetBSD_ShadowOffset32 = 1ULL << 30;
@ -447,6 +448,7 @@ static ShadowMapping getShadowMapping(Triple &TargetTriple, int LongSize,
bool IsMIPS64 = TargetTriple.isMIPS64();
bool IsArmOrThumb = TargetTriple.isARM() || TargetTriple.isThumb();
bool IsAArch64 = TargetTriple.getArch() == Triple::aarch64;
bool IsRISCV64 = TargetTriple.getArch() == Triple::riscv64;
bool IsWindows = TargetTriple.isOSWindows();
bool IsFuchsia = TargetTriple.isOSFuchsia();
bool IsMyriad = TargetTriple.getVendor() == llvm::Triple::Myriad;
@ -515,6 +517,8 @@ static ShadowMapping getShadowMapping(Triple &TargetTriple, int LongSize,
Mapping.Offset = kDynamicShadowSentinel;
else if (IsAArch64)
Mapping.Offset = kAArch64_ShadowOffset64;
else if (IsRISCV64)
Mapping.Offset = kRISCV64_ShadowOffset64;
else
Mapping.Offset = kDefaultShadowOffset64;
}
@ -533,6 +537,7 @@ static ShadowMapping getShadowMapping(Triple &TargetTriple, int LongSize,
// we could OR the constant in a single instruction, but it's more
// efficient to load it once and use indexed addressing.
Mapping.OrShadowOffset = !IsAArch64 && !IsPPC64 && !IsSystemZ && !IsPS4CPU &&
!IsRISCV64 &&
!(Mapping.Offset & (Mapping.Offset - 1)) &&
Mapping.Offset != kDynamicShadowSentinel;
bool IsAndroidWithIfuncSupport =