| //===-- llvm/BinaryFormat/XCOFF.h - The XCOFF file format -------*- C++/-*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file defines manifest constants for the XCOFF object file format. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_BINARYFORMAT_XCOFF_H |
| #define LLVM_BINARYFORMAT_XCOFF_H |
| |
| #include <cstdint> |
| |
| namespace llvm { |
| namespace XCOFF { |
| |
| // Constants used in the XCOFF definition. |
| enum { SectionNameSize = 8, SymbolNameSize = 8 }; |
| enum ReservedSectionNum { N_DEBUG = -2, N_ABS = -1, N_UNDEF = 0 }; |
| |
| // x_smclas field of x_csect from system header: /usr/include/syms.h |
| /// Storage Mapping Class definitions. |
| enum StorageMappingClass { |
| // READ ONLY CLASSES |
| XMC_PR = 0, ///< Program Code |
| XMC_RO = 1, ///< Read Only Constant |
| XMC_DB = 2, ///< Debug Dictionary Table |
| XMC_GL = 6, ///< Global Linkage (Interfile Interface Code) |
| XMC_XO = 7, ///< Extended Operation (Pseudo Machine Instruction) |
| XMC_SV = 8, ///< Supervisor Call (32-bit process only) |
| XMC_SV64 = 17, ///< Supervisor Call for 64-bit process |
| XMC_SV3264 = 18, ///< Supervisor Call for both 32- and 64-bit processes |
| XMC_TI = 12, ///< Traceback Index csect |
| XMC_TB = 13, ///< Traceback Table csect |
| |
| // READ WRITE CLASSES |
| XMC_RW = 5, ///< Read Write Data |
| XMC_TC0 = 15, ///< TOC Anchor for TOC Addressability |
| XMC_TC = 3, ///< General TOC item |
| XMC_TD = 16, ///< Scalar data item in the TOC |
| XMC_DS = 10, ///< Descriptor csect |
| XMC_UA = 4, ///< Unclassified - Treated as Read Write |
| XMC_BS = 9, ///< BSS class (uninitialized static internal) |
| XMC_UC = 11, ///< Un-named Fortran Common |
| |
| XMC_TL = 20, ///< Initialized thread-local variable |
| XMC_UL = 21, ///< Uninitialized thread-local variable |
| XMC_TE = 22 ///< Symbol mapped at the end of TOC |
| }; |
| |
| // Flags for defining the section type. Used for the s_flags field of |
| // the section header structure. Defined in the system header `scnhdr.h`. |
| enum SectionTypeFlags { |
| STYP_PAD = 0x0008, |
| STYP_DWARF = 0x0010, |
| STYP_TEXT = 0x0020, |
| STYP_DATA = 0x0040, |
| STYP_BSS = 0x0080, |
| STYP_EXCEPT = 0x0100, |
| STYP_INFO = 0x0200, |
| STYP_TDATA = 0x0400, |
| STYP_TBSS = 0x0800, |
| STYP_LOADER = 0x1000, |
| STYP_DEBUG = 0x2000, |
| STYP_TYPCHK = 0x4000, |
| STYP_OVRFLO = 0x8000 |
| }; |
| |
| // STORAGE CLASSES, n_sclass field of syment. |
| // The values come from `storclass.h` and `dbxstclass.h`. |
| enum StorageClass : uint8_t { |
| // Storage classes used for symbolic debugging symbols. |
| C_FILE = 103, // File name |
| C_BINCL = 108, // Beginning of include file |
| C_EINCL = 109, // Ending of include file |
| C_GSYM = 128, // Global variable |
| C_STSYM = 133, // Statically allocated symbol |
| C_BCOMM = 135, // Beginning of common block |
| C_ECOMM = 137, // End of common block |
| C_ENTRY = 141, // Alternate entry |
| C_BSTAT = 143, // Beginning of static block |
| C_ESTAT = 144, // End of static block |
| C_GTLS = 145, // Global thread-local variable |
| C_STTLS = 146, // Static thread-local variable |
| |
| // Storage classes used for DWARF symbols. |
| C_DWARF = 112, // DWARF section symbol |
| |
| // Storage classes used for absolute symbols. |
| C_LSYM = 129, // Automatic variable allocated on stack |
| C_PSYM = 130, // Argument to subroutine allocated on stack |
| C_RSYM = 131, // Register variable |
| C_RPSYM = 132, // Argument to function or procedure stored in register |
| C_ECOML = 136, // Local member of common block |
| C_FUN = 142, // Function or procedure |
| |
| // Storage classes used for undefined external symbols or |
| // symbols of general sections. |
| C_EXT = 2, // External symbol |
| C_WEAKEXT = 111, // Weak external symbol |
| |
| // Storage classes used for symbols of general sections. |
| C_NULL = 0, |
| C_STAT = 3, // Static |
| C_BLOCK = 100, // ".bb" or ".eb" |
| C_FCN = 101, // ".bf" or ".ef" |
| C_HIDEXT = 107, // Un-named external symbol |
| C_INFO = 110, // Comment string in .info section |
| C_DECL = 140, // Declaration of object (type) |
| |
| // Storage classes - Obsolete/Undocumented. |
| C_AUTO = 1, // Automatic variable |
| C_REG = 4, // Register variable |
| C_EXTDEF = 5, // External definition |
| C_LABEL = 6, // Label |
| C_ULABEL = 7, // Undefined label |
| C_MOS = 8, // Member of structure |
| C_ARG = 9, // Function argument |
| C_STRTAG = 10, // Structure tag |
| C_MOU = 11, // Member of union |
| C_UNTAG = 12, // Union tag |
| C_TPDEF = 13, // Type definition |
| C_USTATIC = 14, // Undefined static |
| C_ENTAG = 15, // Enumeration tag |
| C_MOE = 16, // Member of enumeration |
| C_REGPARM = 17, // Register parameter |
| C_FIELD = 18, // Bit field |
| C_EOS = 102, // End of structure |
| C_LINE = 104, |
| C_ALIAS = 105, // Duplicate tag |
| C_HIDDEN = 106, // Special storage class for external |
| C_EFCN = 255, // Physical end of function |
| |
| // Storage classes - reserved |
| C_TCSYM = 134 // Reserved |
| }; |
| |
| } // end namespace XCOFF |
| } // end namespace llvm |
| |
| #endif |