aboutsummaryrefslogtreecommitdiff
path: root/lib/msan/msan.h
diff options
context:
space:
mode:
Diffstat (limited to 'lib/msan/msan.h')
-rw-r--r--lib/msan/msan.h27
1 files changed, 25 insertions, 2 deletions
diff --git a/lib/msan/msan.h b/lib/msan/msan.h
index ed18f21d0282..cd8bc19f51ef 100644
--- a/lib/msan/msan.h
+++ b/lib/msan/msan.h
@@ -20,11 +20,16 @@
#include "sanitizer_common/sanitizer_stacktrace.h"
#include "msan_interface_internal.h"
#include "msan_flags.h"
+#include "ubsan/ubsan_platform.h"
#ifndef MSAN_REPLACE_OPERATORS_NEW_AND_DELETE
# define MSAN_REPLACE_OPERATORS_NEW_AND_DELETE 1
#endif
+#ifndef MSAN_CONTAINS_UBSAN
+# define MSAN_CONTAINS_UBSAN CAN_SANITIZE_UB
+#endif
+
struct MappingDesc {
uptr start;
uptr end;
@@ -47,6 +52,25 @@ const MappingDesc kMemoryLayout[] = {
#define MEM_TO_SHADOW(mem) (((uptr)(mem)) & ~0x4000000000ULL)
#define SHADOW_TO_ORIGIN(shadow) (((uptr)(shadow)) + 0x002000000000)
+#elif SANITIZER_LINUX && defined(__powerpc64__)
+
+const MappingDesc kMemoryLayout[] = {
+ {0x000000000000ULL, 0x000100000000ULL, MappingDesc::APP, "low memory"},
+ {0x000100000000ULL, 0x080000000000ULL, MappingDesc::INVALID, "invalid"},
+ {0x080000000000ULL, 0x180100000000ULL, MappingDesc::SHADOW, "shadow"},
+ {0x180100000000ULL, 0x1C0000000000ULL, MappingDesc::INVALID, "invalid"},
+ {0x1C0000000000ULL, 0x2C0100000000ULL, MappingDesc::ORIGIN, "origin"},
+ {0x2C0100000000ULL, 0x300000000000ULL, MappingDesc::INVALID, "invalid"},
+ {0x300000000000ULL, 0x400000000000ULL, MappingDesc::APP, "high memory"}};
+
+// Maps low and high app ranges to contiguous space with zero base:
+// Low: 0000 0000 0000 - 0000 ffff ffff -> 1000 0000 0000 - 1000 ffff ffff
+// High: 3000 0000 0000 - 3fff ffff ffff -> 0000 0000 0000 - 0fff ffff ffff
+#define LINEARIZE_MEM(mem) \
+ (((uptr)(mem) & ~0x200000000000ULL) ^ 0x100000000000ULL)
+#define MEM_TO_SHADOW(mem) (LINEARIZE_MEM((mem)) + 0x080000000000ULL)
+#define SHADOW_TO_ORIGIN(shadow) (((uptr)(shadow)) + 0x140000000000ULL)
+
#elif SANITIZER_FREEBSD && SANITIZER_WORDSIZE == 64
// Low memory: main binary, MAP_32BIT mappings and modules
@@ -120,7 +144,7 @@ extern bool msan_init_is_running;
extern int msan_report_count;
bool ProtectRange(uptr beg, uptr end);
-bool InitShadow(bool map_shadow, bool init_origins);
+bool InitShadow(bool init_origins);
char *GetProcSelfMaps();
void InitializeInterceptors();
@@ -131,7 +155,6 @@ void *MsanReallocate(StackTrace *stack, void *oldp, uptr size,
void MsanDeallocate(StackTrace *stack, void *ptr);
void InstallTrapHandler();
void InstallAtExitHandler();
-void ReplaceOperatorsNewAndDelete();
const char *GetStackOriginDescr(u32 id, uptr *pc);