diff options
Diffstat (limited to 'src/tools/r2rdump/R2RReader.cs')
| -rw-r--r-- | src/tools/r2rdump/R2RReader.cs | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/src/tools/r2rdump/R2RReader.cs b/src/tools/r2rdump/R2RReader.cs index 549415f669..d73fdc80b1 100644 --- a/src/tools/r2rdump/R2RReader.cs +++ b/src/tools/r2rdump/R2RReader.cs @@ -43,6 +43,19 @@ namespace R2RDump } } + /// <summary> + /// based on <a href="https://github.com/dotnet/coreclr/blob/master/src/inc/pedecoder.h">src/inc/pedecoder.h</a> IMAGE_FILE_MACHINE_NATIVE_OS_OVERRIDE + /// </summary> + public enum OperatingSystem + { + Apple = 0x4644, + FreeBSD = 0xADC4, + Linux = 0x7B79, + NetBSD = 0x1993, + Windows = 0, + Unknown = -1 + } + public class R2RReader { /// <summary> @@ -76,6 +89,8 @@ namespace R2RDump /// </summary> public Machine Machine { get; set; } + public OperatingSystem OS { get; set; } + /// <summary> /// The preferred address of the first byte of image when loaded into memory; /// must be a multiple of 64K. @@ -127,11 +142,20 @@ namespace R2RDump throw new BadImageFormatException("The file is not a ReadyToRun image"); } - Machine = PEReader.PEHeaders.CoffHeader.Machine; - if (!Machine.IsDefined(typeof(Machine), Machine)) + uint machine = (uint)PEReader.PEHeaders.CoffHeader.Machine; + OS = OperatingSystem.Unknown; + foreach(OperatingSystem os in Enum.GetValues(typeof(OperatingSystem))) + { + Machine = (Machine)(machine ^ (uint)os); + if (Enum.IsDefined(typeof(Machine), Machine)) + { + OS = os; + break; + } + } + if (OS == OperatingSystem.Unknown) { - R2RDump.WriteWarning($"Invalid Machine: {Machine}"); - Machine = Machine.Amd64; + throw new BadImageFormatException($"Invalid Machine: {machine}"); } ImageBase = PEReader.PEHeaders.PEHeader.ImageBase; |