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Add FreeBSD support to address sanitizer process mapping facilities 

llvm-svn: 208537
This commit is contained in:
Viktor Kutuzov 2014-05-12 11:03:46 +00:00
parent e61f4d5155
commit 626edb6f49
1 changed files with 20 additions and 0 deletions
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20
compiler-rt/lib/asan/asan_mapping.h
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@ -65,6 +65,20 @@
// || `[0x0bffd000, 0x0fffcfff]` || ShadowGap ||
// || `[0x0aaa8000, 0x0bffcfff]` || LowShadow ||
// || `[0x00000000, 0x0aaa7fff]` || LowMem ||
//
// Shadow mapping on FreeBSD/x86-64 with SHADOW_OFFSET == 0x400000000000:
// || `[0x500000000000, 0x7fffffffffff]` || HighMem ||
// || `[0x4a0000000000, 0x4fffffffffff]` || HighShadow ||
// || `[0x480000000000, 0x49ffffffffff]` || ShadowGap ||
// || `[0x400000000000, 0x47ffffffffff]` || LowShadow ||
// || `[0x000000000000, 0x3fffffffffff]` || LowMem ||
//
// Shadow mapping on FreeBSD/i386 with SHADOW_OFFSET == 0x40000000:
// || `[0x60000000, 0xffffffff]` || HighMem ||
// || `[0x4c000000, 0x5fffffff]` || HighShadow ||
// || `[0x48000000, 0x4bffffff]` || ShadowGap ||
// || `[0x40000000, 0x47ffffff]` || LowShadow ||
// || `[0x00000000, 0x3fffffff]` || LowMem ||
static const u64 kDefaultShadowScale = 3;
static const u64 kDefaultShadowOffset32 = 1ULL << 29; // 0x20000000
@ -73,6 +87,8 @@ static const u64 kDefaultShadowOffset64 = 1ULL << 44;
static const u64 kDefaultShort64bitShadowOffset = 0x7FFF8000; // < 2G.
static const u64 kAArch64_ShadowOffset64 = 1ULL << 36;
static const u64 kMIPS32_ShadowOffset32 = 0x0aaa8000;
static const u64 kFreeBSD_ShadowOffset32 = 1ULL << 30; // 0x40000000
static const u64 kFreeBSD_ShadowOffset64 = 1ULL << 46; // 0x400000000000
#define SHADOW_SCALE kDefaultShadowScale
#if SANITIZER_ANDROID
@ -81,6 +97,8 @@ static const u64 kMIPS32_ShadowOffset32 = 0x0aaa8000;
# if SANITIZER_WORDSIZE == 32
# if defined(__mips__)
# define SHADOW_OFFSET kMIPS32_ShadowOffset32
# elif SANITIZER_FREEBSD
# define SHADOW_OFFSET kFreeBSD_ShadowOffset32
# else
# if SANITIZER_IOS
# define SHADOW_OFFSET kIosShadowOffset32
@ -91,6 +109,8 @@ static const u64 kMIPS32_ShadowOffset32 = 0x0aaa8000;
# else
# if defined(__aarch64__)
# define SHADOW_OFFSET kAArch64_ShadowOffset64
# elif SANITIZER_FREEBSD
# define SHADOW_OFFSET kFreeBSD_ShadowOffset64
# elif SANITIZER_MAC
# define SHADOW_OFFSET kDefaultShadowOffset64
# else