Module xcoff

XCOFF definitions

These definitions are independent of read/write support, although we do implement some traits useful for those.

This module is the equivalent of /usr/include/xcoff.h, and is based heavily on it.

Structs

• AuxHeader32
  The auxiliary header immediately following file header. If the value of the f_opthdr field in the file header is 0, the auxiliary header does not exist.
• AuxHeader64
  The auxiliary header immediately following file header. If the value of the f_opthdr field in the file header is 0, the auxiliary header does not exist.
• BlockAux32
  Block auxiliary entry for the C_BLOCK and C_FCN Symbols.
• BlockAux64
  Block auxiliary entry for the C_BLOCK and C_FCN Symbols.
• CsectAux32
  Csect auxiliary entry for C_EXT, C_WEAKEXT, and C_HIDEXT symbols.
• CsectAux64
  Csect auxiliary entry for C_EXT, C_WEAKEXT, and C_HIDEXT symbols.
• DwarfAux32
  Section auxiliary entry Format for C_DWARF symbols.
• DwarfAux64
  Section auxiliary entry Format for C_DWARF symbols.
• ExpAux
  Exception auxiliary entry. (XCOFF64 only)
• FileAux32
  File Auxiliary Entry for C_FILE Symbols.
• FileAux64
  File Auxiliary Entry for C_FILE Symbols.
• FileHeader32
  The header at the start of every 32-bit XCOFF file.
• FileHeader64
  The header at the start of every 64-bit XCOFF file.
• FunAux32
  Function auxiliary entry.
• FunAux64
  Function auxiliary entry.
• Rel32
  Relocation table entry
• Rel64
  Relocation table entry
• SectionHeader32
  Section header.
• SectionHeader64
  Section header.
• StatAux
  Section auxiliary entry for the C_STAT Symbol. (XCOFF32 Only)
• Symbol32
  Symbol table entry.
• Symbol64
  Symbol table entry.
• SymbolBytes

Constants

• AOUTHSZ_SHORT
  Some AIX programs generate auxiliary headers for 32-bit object files that end after the data_start field.
• AUX_CSECT
  Identifies a csect auxiliary entry.
• AUX_EXCEPT
  Identifies an exception auxiliary entry.
• AUX_FCN
  Identifies a function auxiliary entry.
• AUX_FILE
  Identifies a file auxiliary entry.
• AUX_SECT
  Identifies a SECT auxiliary entry.
• AUX_SYM
  Identifies a symbol auxiliary entry.
• C_ALIAS
  Duplicate tag.
• C_ARG
  Function argument.
• C_AUTO
  Automatic variable.
• C_BCOMM
  Beginning of common block.
• C_BINCL
  Beginning of include file.
• C_BLOCK
  Beginning or end of inner block.
• C_BSTAT
  Beginning of static block.
• C_DECL
  Declaration of object (type).
• C_DWARF
  DWARF section symbol.
• C_ECOML
  Local member of common block.
• C_ECOMM
  End of common block.
• C_EFCN
  Physical end of function.
• C_EINCL
  Ending of include file.
• C_ENTAG
  Enumeration tag.
• C_ENTRY
  Alternate entry.
• C_EOS
  End of structure.
• C_ESTAT
  End of static block.
• C_EXT
  External symbol.
• C_EXTDEF
  External definition.
• C_FCN
  Beginning or end of function.
• C_FIELD
  Bit field.
• C_FILE
  Source file name and compiler information.
• C_FUN
  Function or procedure.
• C_GSYM
  Global variable.
• C_GTLS
  Global thread-local variable.
• C_HIDDEN
  Special storage class for external.
• C_HIDEXT
  Un-named external symbol.
• C_INFO
  Comment string in .info section.
• C_LABEL
  Label.
• C_LSYM
  Automatic variable allocated on stack.
• C_MOE
  Member of enumeration.
• C_MOS
  Member of structure.
• C_MOU
  Member of union.
• C_NULL
  Symbol table entry marked for deletion.
• C_PSYM
  Argument to subroutine allocated on stack.
• C_REG
  Register variable.
• C_REGPARM
  Register parameter.
• C_RPSYM
  Argument to function or procedure stored in register.
• C_RSYM
  Register variable.
• C_STAT
  Static.
• C_STRTAG
  Structure tag.
• C_STSYM
  Statically allocated symbol.
• C_STTLS
  Static thread-local variable.
• C_TCSYM
  Reserved.
• C_TPDEF
  Type definition.
• C_ULABEL
  Undefined label.
• C_UNTAG
  Union tag.
• C_USTATIC
  Undefined static.
• C_WEAKEXT
  Weak external symbol.
• F_DSA
  Indicates that the file uses Very Large Program Support.
• F_DYNLOAD
  Indicates the file is dynamically loadable and executable. External references are resolved by way of imports, and the file might contain exports and loader relocation.
• F_EXEC
  Indicates that the file is executable. No unresolved external references exist.
• F_FDPR_OPTI
  Indicates that the file was reordered with the fdpr command.
• F_FDPR_PROF
  Indicates that the file was profiled with the fdpr command.
• F_LNNO
  Indicates that line numbers have been stripped from the file by a utility program.
• F_LOADONLY
  If the object file is a member of an archive, it can be loaded by the system loader, but the member is ignored by the binder. If the object file is not in an archive, this flag has no effect.
• F_RELFLG
  Indicates that the relocation information for binding has been removed from the file.
• F_SHROBJ
  Indicates the file is a shared object (shared library). The file is separately loadable. That is, it is not normally bound with other objects, and its loader exports symbols are used as automatic import symbols for other object files.
• F_VARPG
  Indicates that one of the members of the auxiliary header specifying the medium page sizes is non-zero.
• MAGIC_32
  the 32-bit mach magic number
• MAGIC_64
  the 64-bit mach magic number
• N_ABS
  An absolute symbol. The symbol has a value but is not relocatable.
• N_DEBUG
  A special symbolic debugging symbol.
• N_UNDEF
  An undefined external symbol.
• R_BA
  Branch absolute relocation. References a non-modifiable instruction.
• R_BR
  Branch relative to self relocation. References a non-modifiable instruction.
• R_GL
  Global linkage-external TOC address relocation.
• R_NEG
  Negative relocation.
• R_POS
  Positive relocation.
• R_RBA
  Branch absolute relocation. References a modifiable instruction.
• R_RBR
  Branch relative to self relocation. References a modifiable instruction.
• R_REF
  A non-relocating relocation.
• R_REL
  Relative to self relocation.
• R_RL
  Positive indirect load relocation.
• R_RLA
  Positive load address relocation. Modifiable instruction.
• R_TCL
  Local object TOC address relocation.
• R_TLS
  General-dynamic reference to TLS symbol.
• R_TLSM
  Module reference to TLS.
• R_TLSML
  Module reference to the local TLS storage.
• R_TLS_IE
  Initial-exec reference to TLS symbol.
• R_TLS_LD
  Local-dynamic reference to TLS symbol.
• R_TLS_LE
  Local-exec reference to TLS symbol.
• R_TOC
  Relative to the TOC relocation.
• R_TOCL
  Relative to TOC lower.
• R_TOCU
  Relative to TOC upper.
• R_TRL
  TOC relative indirect load relocation.
• R_TRLA
  Relative to the TOC or to the thread-local storage base relocation.
• SIZEOF_SYMBOL
• SSUBTYP_DWABREV
• SSUBTYP_DWARNGE
• SSUBTYP_DWFRAME
• SSUBTYP_DWINFO
• SSUBTYP_DWLINE
• SSUBTYP_DWLOC
• SSUBTYP_DWMAC
• SSUBTYP_DWPBNMS
• SSUBTYP_DWPBTYP
• SSUBTYP_DWRNGES
• SSUBTYP_DWSTR
• STYP_BSS
  Specifies an uninitialized data section. A section header of this type defines the uninitialized data of a program.
• STYP_DATA
  Specifies an initialized data section. A section of this type contains the initialized data and the TOC of a program.
• STYP_DEBUG
  Specifies a debug section. A section of this type contains stabstring information used by the symbolic debugger.
• STYP_DWARF
  Specifies a DWARF debugging section, which provide source file and symbol information for the symbolic debugger.
• STYP_EXCEPT
  Specifies an exception section. A section of this type provides information to identify the reason that a trap or exception occurred within an executable object program.
• STYP_INFO
  Specifies a comment section. A section of this type provides comments or data to special processing utility programs.
• STYP_LOADER
  Specifies a loader section. A section of this type contains object file information for the system loader to load an XCOFF executable. The information includes imported symbols, exported symbols, relocation data, type-check information, and shared object names.
• STYP_OVRFLO
  Specifies a relocation or line-number field overflow section. A section header of this type contains the count of relocation entries and line number entries for some other section. This section header is required when either of the counts exceeds 65,534.
• STYP_PAD
  Specifies a pad section. A section of this type is used to provide alignment padding between sections within an XCOFF executable object file. This section header type is obsolete since padding is allowed in an XCOFF file without a corresponding pad section header.
• STYP_REG
  “regular” section
• STYP_TBSS
  Specifies an uninitialized thread-local data section.
• STYP_TDATA
  Specifies an initialized thread-local data section.
• STYP_TEXT
  Specifies an executable text (code) section. A section of this type contains the executable instructions of a program.
• STYP_TYPCHK
  Specifies a type-check section. A section of this type contains parameter/argument type-check strings used by the binder.
• SYM_V_EXPORTED
• SYM_V_HIDDEN
• SYM_V_INTERNAL
• SYM_V_MASK
  Values for visibility as they would appear when encoded in the high 4 bits of the 16-bit unsigned n_type field of symbol table entries. Valid for 32-bit XCOFF only when the o_vstamp in the auxiliary header is greater than 1.
• SYM_V_PROTECTED
• XFT_CD
  Specifies compiler-defined information.
• XFT_CT
  Specifies the compiler time stamp.
• XFT_CV
  Specifies the compiler version number.
• XFT_FN
  Specifies the source-file name.
• XMC_BS
  BSS class (uninitialized static internal)
• XMC_DB
  Debug Dictionary Table
• XMC_DS
  Descriptor csect
• XMC_GL
  Global Linkage (Interfile Interface Code)
• XMC_PR
  Program Code
• XMC_RO
  Read Only Constant
• XMC_RW
  Read Write Data
• XMC_SV
  Supervisor Call (32-bit process only)
• XMC_SV64
  Supervisor Call for 64-bit process
• XMC_SV3264
  Supervisor Call for both 32- and 64-bit processes
• XMC_TB
  Traceback Table csect
• XMC_TC
  General TOC item
• XMC_TC0
  TOC Anchor for TOC Addressability
• XMC_TD
  Scalar data item in the TOC
• XMC_TE
  Symbol mapped at the end of TOC
• XMC_TI
  Traceback Index csect
• XMC_TL
  Initialized thread-local variable
• XMC_UA
  Unclassified - Treated as Read Write
• XMC_UC
  Un-named Fortran Common
• XMC_UL
  Uninitialized thread-local variable
• XMC_XO
  Extended Operation (Pseudo Machine Instruction)
• XTY_CM
  Common csect definition. For uninitialized storage.
• XTY_ER
  External reference.
• XTY_LD
  Defines an entry point to an initialized csect.
• XTY_SD
  Csect definition for initialized storage.