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[sanitizer] Move DescribeSignalOrException to sanitizer_common. 

Differential Revision: https://reviews.llvm.org/D29459

llvm-svn: 293956
This commit is contained in:
Marcos Pividori 2017-02-02 23:01:59 +00:00
parent ee22156b78
commit fe9288a6a0
7 changed files with 42 additions and 44 deletions
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2
compiler-rt/lib/asan/asan_errors.cc
View File

@ -61,7 +61,7 @@ static void MaybeDumpRegisters(void *context) {
void ErrorDeadlySignal::Print() {
Decorator d;
Printf("%s", d.Warning());
const char *description = DescribeSignalOrException(signo);
const char *description = __sanitizer::DescribeSignalOrException(signo);
Report(
"ERROR: AddressSanitizer: %s on unknown address %p (pc %p bp %p sp %p "
"T%d)\n",

3
compiler-rt/lib/asan/asan_internal.h
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@ -65,9 +65,6 @@ void AsanInitFromRtl();
// asan_win.cc
void InitializePlatformExceptionHandlers();
// asan_win.cc / asan_posix.cc
const char *DescribeSignalOrException(int signo);
// asan_rtl.cc
void NORETURN ShowStatsAndAbort();

13
compiler-rt/lib/asan/asan_posix.cc
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@ -33,19 +33,6 @@
namespace __asan {
const char *DescribeSignalOrException(int signo) {
switch (signo) {
case SIGFPE:
return "FPE";
case SIGILL:
return "ILL";
case SIGABRT:
return "ABRT";
default:
return "SEGV";
}
}
void AsanOnDeadlySignal(int signo, void *siginfo, void *context) {
ScopedDeadlySignal signal_scope(GetCurrentThread());
int code = (int)((siginfo_t*)siginfo)->si_code;

27
compiler-rt/lib/asan/asan_win.cc
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@ -237,33 +237,6 @@ void InitializePlatformExceptionHandlers() {
static LPTOP_LEVEL_EXCEPTION_FILTER default_seh_handler;
// Return the textual name for this exception.
const char *DescribeSignalOrException(int signo) {
unsigned code = signo;
// Get the string description of the exception if this is a known deadly
// exception.
switch (code) {
case EXCEPTION_ACCESS_VIOLATION: return "access-violation";
case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: return "array-bounds-exceeded";
case EXCEPTION_STACK_OVERFLOW: return "stack-overflow";
case EXCEPTION_DATATYPE_MISALIGNMENT: return "datatype-misalignment";
case EXCEPTION_IN_PAGE_ERROR: return "in-page-error";
case EXCEPTION_ILLEGAL_INSTRUCTION: return "illegal-instruction";
case EXCEPTION_PRIV_INSTRUCTION: return "priv-instruction";
case EXCEPTION_BREAKPOINT: return "breakpoint";
case EXCEPTION_FLT_DENORMAL_OPERAND: return "flt-denormal-operand";
case EXCEPTION_FLT_DIVIDE_BY_ZERO: return "flt-divide-by-zero";
case EXCEPTION_FLT_INEXACT_RESULT: return "flt-inexact-result";
case EXCEPTION_FLT_INVALID_OPERATION: return "flt-invalid-operation";
case EXCEPTION_FLT_OVERFLOW: return "flt-overflow";
case EXCEPTION_FLT_STACK_CHECK: return "flt-stack-check";
case EXCEPTION_FLT_UNDERFLOW: return "flt-underflow";
case EXCEPTION_INT_DIVIDE_BY_ZERO: return "int-divide-by-zero";
case EXCEPTION_INT_OVERFLOW: return "int-overflow";
}
return nullptr;
}
extern "C" SANITIZER_INTERFACE_ATTRIBUTE
long __asan_unhandled_exception_filter(EXCEPTION_POINTERS *info) {
EXCEPTION_RECORD *exception_record = info->ExceptionRecord;

1
compiler-rt/lib/sanitizer_common/sanitizer_common.h
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@ -382,6 +382,7 @@ void SetSoftRssLimitExceededCallback(void (*Callback)(bool exceeded));
typedef void (*SignalHandlerType)(int, void *, void *);
bool IsHandledDeadlySignal(int signum);
void InstallDeadlySignalHandlers(SignalHandlerType handler);
const char *DescribeSignalOrException(int signo);
// Alternative signal stack (POSIX-only).
void SetAlternateSignalStack();
void UnsetAlternateSignalStack();

14
compiler-rt/lib/sanitizer_common/sanitizer_posix.cc
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@ -358,6 +358,20 @@ SignalContext SignalContext::Create(void *siginfo, void *context) {
return SignalContext(context, addr, pc, sp, bp, is_memory_access, write_flag);
}
const char *DescribeSignalOrException(int signo) {
switch (signo) {
case SIGFPE:
return "FPE";
case SIGILL:
return "ILL";
case SIGABRT:
return "ABRT";
default:
return "SEGV";
}
return "UNKNOWN SIGNAL";
}
} // namespace __sanitizer
#endif // SANITIZER_POSIX

26
compiler-rt/lib/sanitizer_common/sanitizer_win.cc
View File

@ -863,6 +863,32 @@ bool IsHandledDeadlyException(DWORD exceptionCode) {
return false;
}
const char *DescribeSignalOrException(int signo) {
unsigned code = signo;
// Get the string description of the exception if this is a known deadly
// exception.
switch (code) {
case EXCEPTION_ACCESS_VIOLATION: return "access-violation";
case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: return "array-bounds-exceeded";
case EXCEPTION_STACK_OVERFLOW: return "stack-overflow";
case EXCEPTION_DATATYPE_MISALIGNMENT: return "datatype-misalignment";
case EXCEPTION_IN_PAGE_ERROR: return "in-page-error";
case EXCEPTION_ILLEGAL_INSTRUCTION: return "illegal-instruction";
case EXCEPTION_PRIV_INSTRUCTION: return "priv-instruction";
case EXCEPTION_BREAKPOINT: return "breakpoint";
case EXCEPTION_FLT_DENORMAL_OPERAND: return "flt-denormal-operand";
case EXCEPTION_FLT_DIVIDE_BY_ZERO: return "flt-divide-by-zero";
case EXCEPTION_FLT_INEXACT_RESULT: return "flt-inexact-result";
case EXCEPTION_FLT_INVALID_OPERATION: return "flt-invalid-operation";
case EXCEPTION_FLT_OVERFLOW: return "flt-overflow";
case EXCEPTION_FLT_STACK_CHECK: return "flt-stack-check";
case EXCEPTION_FLT_UNDERFLOW: return "flt-underflow";
case EXCEPTION_INT_DIVIDE_BY_ZERO: return "int-divide-by-zero";
case EXCEPTION_INT_OVERFLOW: return "int-overflow";
}
return "unknown exception";
}
bool IsAccessibleMemoryRange(uptr beg, uptr size) {
SYSTEM_INFO si;
GetNativeSystemInfo(&si);