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Add STT/STB constants (#23)
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* Add STT/STB constants
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@david942j
david942j authored Aug 31, 2018
1 parent bced874 commit d85b0fb
Showing 1 changed file with 122 additions and 78 deletions.
200 changes: 122 additions & 78 deletions lib/elftools/constants.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -6,49 +6,42 @@ module Constants
# ELF magic header
ELFMAG = "\x7FELF".freeze

# Section header types, records in +sh_type+.
module SHT
SHT_NULL = 0 # null section
SHT_PROGBITS = 1 # information defined by program itself
SHT_SYMTAB = 2 # symbol table section
SHT_STRTAB = 3 # string table section
SHT_RELA = 4 # relocation with addends
SHT_HASH = 5 # symbol hash table
SHT_DYNAMIC = 6 # information of dynamic linking
SHT_NOTE = 7 # note section
SHT_NOBITS = 8 # section occupies no space
SHT_REL = 9 # relocation
SHT_SHLIB = 10 # reserved
SHT_DYNSYM = 11 # symbols for dynamic
# Values between {SHT_LOPROC} and {SHT_HIPROC} are reserved for processor-specific semantics.
SHT_LOPROC = 0x70000000
SHT_HIPROC = 0x7fffffff # see {SHT_LOPROC}
# Values between {SHT_LOUSER} and {SHT_HIUSER} are reserved for application programs.
SHT_LOUSER = 0x80000000
SHT_HIUSER = 0xffffffff # see {SHT_LOUSER}
end
include SHT
# Values of `d_un.d_val' in the DT_FLAGS and DT_FLAGS_1 entry.
module DF
DF_ORIGIN = 0x00000001 # Object may use DF_ORIGIN
DF_SYMBOLIC = 0x00000002 # Symbol resolutions starts here
DF_TEXTREL = 0x00000004 # Object contains text relocations
DF_BIND_NOW = 0x00000008 # No lazy binding for this object
DF_STATIC_TLS = 0x00000010 # Module uses the static TLS model

# Program header types, records in +p_type+.
module PT
PT_NULL = 0 # null segment
PT_LOAD = 1 # segment to be load
PT_DYNAMIC = 2 # dynamic tags
PT_INTERP = 3 # interpreter, same as .interp section
PT_NOTE = 4 # same as .note* section
PT_SHLIB = 5 # reserved
PT_PHDR = 6 # where program header starts
PT_TLS = 7 # thread local storage segment
PT_LOOS = 0x60000000 # OS-specific
PT_HIOS = 0x6fffffff # OS-specific
# Values between {PT_LOPROC} and {PT_HIPROC} are reserved for processor-specific semantics.
PT_LOPROC = 0x70000000
PT_HIPROC = 0x7fffffff # see {PT_LOPROC}
PT_GNU_EH_FRAME = 0x6474e550 # for exception handler
PT_GNU_STACK = 0x6474e551 # permission of stack
PT_GNU_RELRO = 0x6474e552 # read only after relocation
DF_1_NOW = 0x00000001 # Set RTLD_NOW for this object.
DF_1_GLOBAL = 0x00000002 # Set RTLD_GLOBAL for this object.
DF_1_GROUP = 0x00000004 # Set RTLD_GROUP for this object.
DF_1_NODELETE = 0x00000008 # Set RTLD_NODELETE for this object.
DF_1_LOADFLTR = 0x00000010 # Trigger filtee loading at runtime.
DF_1_INITFIRST = 0x00000020 # Set RTLD_INITFIRST for this object
DF_1_NOOPEN = 0x00000040 # Set RTLD_NOOPEN for this object.
DF_1_ORIGIN = 0x00000080 # $ORIGIN must be handled.
DF_1_DIRECT = 0x00000100 # Direct binding enabled.
DF_1_TRANS = 0x00000200 # :nodoc:
DF_1_INTERPOSE = 0x00000400 # Object is used to interpose.
DF_1_NODEFLIB = 0x00000800 # Ignore default lib search path.
DF_1_NODUMP = 0x00001000 # Object can't be dldump'ed.
DF_1_CONFALT = 0x00002000 # Configuration alternative created.
DF_1_ENDFILTEE = 0x00004000 # Filtee terminates filters search.
DF_1_DISPRELDNE = 0x00008000 # Disp reloc applied at build time.
DF_1_DISPRELPND = 0x00010000 # Disp reloc applied at run-time.
DF_1_NODIRECT = 0x00020000 # Object has no-direct binding.
DF_1_IGNMULDEF = 0x00040000 # :nodoc:
DF_1_NOKSYMS = 0x00080000 # :nodoc:
DF_1_NOHDR = 0x00100000 # :nodoc:
DF_1_EDITED = 0x00200000 # Object is modified after built.
DF_1_NORELOC = 0x00400000 # :nodoc:
DF_1_SYMINTPOSE = 0x00800000 # Object has individual interposers.
DF_1_GLOBAUDIT = 0x01000000 # Global auditing required.
DF_1_SINGLETON = 0x02000000 # Singleton symbols are used.
end
include PT
include DF

# Dynamic table types, records in +d_tag+.
module DT
Expand Down Expand Up @@ -107,43 +100,6 @@ module DT
end
include DT

# Values of `d_un.d_val' in the DT_FLAGS and DT_FLAGS_1 entry.
module DF
DF_ORIGIN = 0x00000001 # Object may use DF_ORIGIN
DF_SYMBOLIC = 0x00000002 # Symbol resolutions starts here
DF_TEXTREL = 0x00000004 # Object contains text relocations
DF_BIND_NOW = 0x00000008 # No lazy binding for this object
DF_STATIC_TLS = 0x00000010 # Module uses the static TLS model

DF_1_NOW = 0x00000001 # Set RTLD_NOW for this object.
DF_1_GLOBAL = 0x00000002 # Set RTLD_GLOBAL for this object.
DF_1_GROUP = 0x00000004 # Set RTLD_GROUP for this object.
DF_1_NODELETE = 0x00000008 # Set RTLD_NODELETE for this object.
DF_1_LOADFLTR = 0x00000010 # Trigger filtee loading at runtime.
DF_1_INITFIRST = 0x00000020 # Set RTLD_INITFIRST for this object
DF_1_NOOPEN = 0x00000040 # Set RTLD_NOOPEN for this object.
DF_1_ORIGIN = 0x00000080 # $ORIGIN must be handled.
DF_1_DIRECT = 0x00000100 # Direct binding enabled.
DF_1_TRANS = 0x00000200 # :nodoc:
DF_1_INTERPOSE = 0x00000400 # Object is used to interpose.
DF_1_NODEFLIB = 0x00000800 # Ignore default lib search path.
DF_1_NODUMP = 0x00001000 # Object can't be dldump'ed.
DF_1_CONFALT = 0x00002000 # Configuration alternative created.
DF_1_ENDFILTEE = 0x00004000 # Filtee terminates filters search.
DF_1_DISPRELDNE = 0x00008000 # Disp reloc applied at build time.
DF_1_DISPRELPND = 0x00010000 # Disp reloc applied at run-time.
DF_1_NODIRECT = 0x00020000 # Object has no-direct binding.
DF_1_IGNMULDEF = 0x00040000 # :nodoc:
DF_1_NOKSYMS = 0x00080000 # :nodoc:
DF_1_NOHDR = 0x00100000 # :nodoc:
DF_1_EDITED = 0x00200000 # Object is modified after built.
DF_1_NORELOC = 0x00400000 # :nodoc:
DF_1_SYMINTPOSE = 0x00800000 # Object has individual interposers.
DF_1_GLOBAUDIT = 0x01000000 # Global auditing required.
DF_1_SINGLETON = 0x02000000 # Singleton symbols are used.
end
include DF

# These constants define the various ELF target machines.
module EM
EM_NONE = 0 # none
Expand Down Expand Up @@ -253,5 +209,93 @@ def self.mapping(type)
end
end
include ET

# Program header types, records in +p_type+.
module PT
PT_NULL = 0 # null segment
PT_LOAD = 1 # segment to be load
PT_DYNAMIC = 2 # dynamic tags
PT_INTERP = 3 # interpreter, same as .interp section
PT_NOTE = 4 # same as .note* section
PT_SHLIB = 5 # reserved
PT_PHDR = 6 # where program header starts
PT_TLS = 7 # thread local storage segment
PT_LOOS = 0x60000000 # OS-specific
PT_HIOS = 0x6fffffff # OS-specific
# Values between {PT_LOPROC} and {PT_HIPROC} are reserved for processor-specific semantics.
PT_LOPROC = 0x70000000
PT_HIPROC = 0x7fffffff # see {PT_LOPROC}
PT_GNU_EH_FRAME = 0x6474e550 # for exception handler
PT_GNU_STACK = 0x6474e551 # permission of stack
PT_GNU_RELRO = 0x6474e552 # read only after relocation
end
include PT

# Section header types, records in +sh_type+.
module SHT
SHT_NULL = 0 # null section
SHT_PROGBITS = 1 # information defined by program itself
SHT_SYMTAB = 2 # symbol table section
SHT_STRTAB = 3 # string table section
SHT_RELA = 4 # relocation with addends
SHT_HASH = 5 # symbol hash table
SHT_DYNAMIC = 6 # information of dynamic linking
SHT_NOTE = 7 # note section
SHT_NOBITS = 8 # section occupies no space
SHT_REL = 9 # relocation
SHT_SHLIB = 10 # reserved
SHT_DYNSYM = 11 # symbols for dynamic
# Values between {SHT_LOPROC} and {SHT_HIPROC} are reserved for processor-specific semantics.
SHT_LOPROC = 0x70000000
SHT_HIPROC = 0x7fffffff # see {SHT_LOPROC}
# Values between {SHT_LOUSER} and {SHT_HIUSER} are reserved for application programs.
SHT_LOUSER = 0x80000000
SHT_HIUSER = 0xffffffff # see {SHT_LOUSER}
end
include SHT

# Symbol binding from Sym st_info field.
module STB
STB_LOCAL = 0 # Local symbol
STB_GLOBAL = 1 # Global symbol
STB_WEAK = 2 # Weak symbol
STB_NUM = 3 # Number of defined types.
STB_LOOS = 10 # Start of OS-specific
STB_GNU_UNIQUE = 10 # Unique symbol.
STB_HIOS = 12 # End of OS-specific
STB_LOPROC = 13 # Start of processor-specific
STB_HIPROC = 15 # End of processor-specific
end
include STB

# Symbol types from Sym st_info field.
module STT
STT_NOTYPE = 0 # Symbol type is unspecified
STT_OBJECT = 1 # Symbol is a data object
STT_FUNC = 2 # Symbol is a code object
STT_SECTION = 3 # Symbol associated with a section
STT_FILE = 4 # Symbol's name is file name
STT_COMMON = 5 # Symbol is a common data object
STT_TLS = 6 # Symbol is thread-local data object
STT_NUM = 7 # Number of defined types.

# GNU extension: symbol value points to a function which is called
# at runtime to determine the final value of the symbol.
STT_GNU_IFUNC = 10

STT_LOOS = 10 # Start of OS-specific
STT_HIOS = 12 # End of OS-specific
STT_LOPROC = 13 # Start of processor-specific
STT_HIPROC = 15 # End of processor-specific

# The section type that must be used for register symbols on
# Sparc. These symbols initialize a global register.
STT_SPARC_REGISTER = 13

# ARM: a THUMB function. This is not defined in ARM ELF Specification but
# used by the GNU tool-chain.
STT_ARM_TFUNC = 13
end
include STT
end
end

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