This is a declarative field for the linker that indicates that the compiler has already emitted this value. The actual size of the section body will be less than or equal to a multiple of FileAlignment in the file. This is used to support debugging information and static thread local storage. Value Definition 0x00000020Code section 0x00000040Initialized data section 0x00000080Uninitialized data section 0x04000000Section cannot be cached 0x08000000Section is not pageable 0x10000000Section is shared 0x20000000Executable section 0x40000000Readable section 0x80000000Writable section Locating Data Directories Data directories exist within the body of their corresponding data section. Normally zero, meaning that it's the main program. However, this can get very complicated very quickly. Offset Size Field Description 0 2 Machine The number that identifies the type of target machine.
The tables that are referenced in this data structure are organized and sorted just as their counterparts are for traditional imports. Valid only for object files. For object files, the value should be aligned on a 4-byte boundary for best performance. The offsets array, in turn, gives the location of the archive member that contains the symbol. If the NumberOfRelocations field in the section header is 0xffff, the actual relocation count is stored in the VirtualAddress field of the first relocation.
The details of what these structures do exist in other sections of this page. The array is null-terminated, so if no callback function is supported, this field points to 4 bytes set to zero. For details on the Authenticode digital signature format, see. Characteristics The characteristics of the image. The load module starts where the.
In it you will find structure type definitions for each of the file headers and data directories used to represent various components in the file. In addition, it is important to validate the optional header magic number for format compatibility. For device drivers, this is the address of the initialization function. MajorSubsystemVersion The major version number of the subsystem. Different overlays can thus share the same memory area. This represents the date and time the image was created by the linker. The process of loading and resolving import addresses can be time consuming, and in some situations this is to be avoided.
Resource Directory Entries The directory entries make up the rows of a table. As said above, a module cannot declare where in memory it expects a function or value to be. However, to avoid wasting space, the different sections are not page aligned on disk. The second member has the following format. A typical meaning is the relocatable address. When opened, you'll be asked where you want to extract the files. These entries are one-based, relative to the beginning of the function, and represent every source line in the function except for the first line.
If you had multiple menus defined in your application, there would be an entry for each one here at the second level of the tree. This field specifies the starting ordinal number for the export address table. The Value field specifies the n th argument. If set properly, the 16-bit sum of all words in the file should be zero. This contrasts with which uses fully position-independent code and a global offset table, which trades off execution time in favor of lower memory usage. A match is attempted first with this value. This continues until the FirstThunk value is -1, indicating no more forwarded values to import.
It is composed of a few directories: metadata, embedded resources, strong names and a few for native-code interoperability. The size of this array is in the value NumberOfFunctions. Each resource directory entry has the following format. This field enables support of multiple debuggers. I guess that Dell can described the steps more clearly in the document. Base type: integer, floating-point, and so on.
This member can be one of the following values. The statement can be verified as being made by the manufacturer by using public or private key cryptography schemes. These two arrays are parallel and are used to get an export value from AddressOfFunctions. Each entry in the export address table is a field that uses one of two formats in the following table. However, an export name is easier to remember and does not require the user to know the table index for the symbol.
It tells us more about how the binary should be loaded: the starting address, the amount of stack to reserve, the size of the data segment etc. That is, it is used to detect whether a block of memory on disk has gone bad and the values stored there have become corrupted. The relevant values are 0x8664 for x64 executable and 0x14c for x86. A name appears here only when there is insufficient room in the Name field 16 bytes. If the specified symbol has section storage class, then the symbol's address is the address with the first section of the same name.