diff options
Diffstat (limited to 'lldb/source/DataFormatters/CXXFormatterFunctions.cpp')
| -rw-r--r-- | lldb/source/DataFormatters/CXXFormatterFunctions.cpp | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/lldb/source/DataFormatters/CXXFormatterFunctions.cpp b/lldb/source/DataFormatters/CXXFormatterFunctions.cpp index c0c9dcbb4a6..2df6524c365 100644 --- a/lldb/source/DataFormatters/CXXFormatterFunctions.cpp +++ b/lldb/source/DataFormatters/CXXFormatterFunctions.cpp @@ -9,6 +9,8 @@ #include "lldb/lldb-python.h" +#include <time.h> + #include "lldb/DataFormatters/CXXFormatterFunctions.h" #include "llvm/Support/ConvertUTF.h" @@ -1618,6 +1620,131 @@ lldb_private::formatters::ObjCSELSummaryProvider (ValueObject& valobj, Stream& s return true; } +// POSIX has an epoch on Jan-1-1970, but Cocoa prefers Jan-1-2001 +// this call gives the POSIX equivalent of the Cocoa epoch +time_t +GetOSXEpoch () +{ + static time_t epoch = 0; + if (!epoch) + { + tzset(); + tm tm_epoch; + tm_epoch.tm_sec = 0; + tm_epoch.tm_hour = 0; + tm_epoch.tm_min = 0; + tm_epoch.tm_mon = 0; + tm_epoch.tm_mday = 1; + tm_epoch.tm_year = 2001-1900; // for some reason, we need to subtract 1900 from this field. not sure why. + tm_epoch.tm_isdst = -1; + tm_epoch.tm_gmtoff = 0; + tm_epoch.tm_zone = NULL; + epoch = timegm(&tm_epoch); + } + return epoch; +} + +bool +lldb_private::formatters::NSDateSummaryProvider (ValueObject& valobj, Stream& stream) +{ + ProcessSP process_sp = valobj.GetProcessSP(); + if (!process_sp) + return false; + + ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC); + + if (!runtime) + return false; + + ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj)); + + if (!descriptor.get() || !descriptor->IsValid()) + return false; + + uint32_t ptr_size = process_sp->GetAddressByteSize(); + + lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0); + + if (!valobj_addr) + return false; + + uint64_t date_value_bits = 0; + double date_value = 0.0; + + const char* class_name = descriptor->GetClassName().GetCString(); + + if (!class_name || !*class_name) + return false; + + if (strcmp(class_name,"NSDate") == 0 || + strcmp(class_name,"__NSDate") == 0 || + strcmp(class_name,"__NSTaggedDate") == 0) + { + if (descriptor->IsTagged()) + { + uint64_t info_bits = (valobj_addr & 0xF0ULL) >> 4; + uint64_t value_bits = (valobj_addr & ~0x0000000000000000FFULL) >> 8; + date_value_bits = ((value_bits << 8) | (info_bits << 4)); + date_value = *((double*)&date_value_bits); + } + else + { + Error error; + date_value_bits = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr+ptr_size, 8, 0, error); + date_value = *((double*)&date_value_bits); + if (error.Fail()) + return false; + } + } + else if (!strcmp(class_name,"NSCalendarDate")) + { + Error error; + date_value_bits = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr+2*ptr_size, 8, 0, error); + date_value = *((double*)&date_value_bits); + if (error.Fail()) + return false; + } + else + { + if (ExtractValueFromObjCExpression(valobj, "NSTimeInterval", "ExtractValueFromObjCExpression", date_value_bits) == false) + return false; + date_value = *((double*)&date_value_bits); + } + if (date_value == -63114076800) + { + stream.Printf("0001-12-30 00:00:00 +0000"); + return true; + } + // this snippet of code assumes that time_t == seconds since Jan-1-1970 + // this is generally true and POSIXly happy, but might break if a library + // vendor decides to get creative + time_t epoch = GetOSXEpoch(); + epoch = epoch + (time_t)date_value; + tm *tm_date = localtime(&epoch); + if (!tm_date) + return false; + std::string buffer(1024,0); + if (strftime (&buffer[0], 1023, "%Z", tm_date) == 0) + return false; + stream.Printf("%04d-%02d-%02d %02d:%02d:%02d %s", tm_date->tm_year+1900, tm_date->tm_mon+1, tm_date->tm_mday, tm_date->tm_hour, tm_date->tm_min, tm_date->tm_sec, buffer.c_str()); + return true; +} + +bool +lldb_private::formatters::CFAbsoluteTimeSummaryProvider (ValueObject& valobj, Stream& stream) +{ + time_t epoch = GetOSXEpoch(); + epoch = epoch + (time_t)valobj.GetValueAsUnsigned(0); + tm *tm_date = localtime(&epoch); + if (!tm_date) + return false; + std::string buffer(1024,0); + if (strftime (&buffer[0], 1023, "%Z", tm_date) == 0) + return false; + stream.Printf("%04d-%02d-%02d %02d:%02d:%02d %s", tm_date->tm_year+1900, tm_date->tm_mon+1, tm_date->tm_mday, tm_date->tm_hour, tm_date->tm_min, tm_date->tm_sec, buffer.c_str()); + return true; +} + size_t lldb_private::formatters::ExtractIndexFromString (const char* item_name) { |
