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Register NetBSD/i386 in asan_mapping.h 

Summary:
Introduce kNetBSD_ShadowOffset32 and document
NetBSD/i386 (hosted on amd64 kernel) process virtual
address space ranges.

Sponsored by <The NetBSD Foundation>

Reviewers: joerg, kcc, vitalybuka

Reviewed By: vitalybuka

Subscribers: kubamracek, llvm-commits, #sanitizers

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D46708

llvm-svn: 332027
This commit is contained in:
Kamil Rytarowski 2018-05-10 19:51:40 +00:00
parent fbb83deef7
commit b8238db4c4
1 changed files with 10 additions and 0 deletions
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10
compiler-rt/lib/asan/asan_mapping.h
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@ -122,6 +122,13 @@
// || `[0x400000000000, 0x47ffffffffff]` || LowShadow ||
// || `[0x000000000000, 0x3fffffffffff]` || LowMem ||
//
// Shadow mapping on NerBSD/i386 with SHADOW_OFFSET == 0x40000000:
// || `[0x60000000, 0xfffff000]` || HighMem ||
// || `[0x4c000000, 0x5fffffff]` || HighShadow ||
// || `[0x48000000, 0x4bffffff]` || ShadowGap ||
// || `[0x40000000, 0x47ffffff]` || LowShadow ||
// || `[0x00000000, 0x3fffffff]` || LowMem ||
//
// Default Windows/i386 mapping:
// (the exact location of HighShadow/HighMem may vary depending
// on WoW64, /LARGEADDRESSAWARE, etc).
@ -152,6 +159,7 @@ static const u64 kPPC64_ShadowOffset64 = 1ULL << 44;
static const u64 kSystemZ_ShadowOffset64 = 1ULL << 52;
static const u64 kFreeBSD_ShadowOffset32 = 1ULL << 30; // 0x40000000
static const u64 kFreeBSD_ShadowOffset64 = 1ULL << 46; // 0x400000000000
static const u64 kNetBSD_ShadowOffset32 = 1ULL << 30; // 0x40000000
static const u64 kNetBSD_ShadowOffset64 = 1ULL << 46; // 0x400000000000
static const u64 kWindowsShadowOffset32 = 3ULL << 28; // 0x30000000
@ -166,6 +174,8 @@ static const u64 kWindowsShadowOffset32 = 3ULL << 28; // 0x30000000
# define SHADOW_OFFSET kMIPS32_ShadowOffset32
# elif SANITIZER_FREEBSD
# define SHADOW_OFFSET kFreeBSD_ShadowOffset32
# elif SANITIZER_NETBSD
# define SHADOW_OFFSET kNetBSD_ShadowOffset32
# elif SANITIZER_WINDOWS
# define SHADOW_OFFSET kWindowsShadowOffset32
# elif SANITIZER_IOS