#compdef objdump eu-objdump llvm-objdump

local opts args files variant curcontext=$context state state_descr line
typeset -A opt_args

files='*:object file:_object_files'

_pick_variant -r variant binutils=GNU elfutils=elfutils llvm=LLVM unix --version

opts=( -s -S )	# options for _arguments
args=(
  "(-d --disassemble)"{-d,--disassemble}"[Display assembler code of executable sections]"
  "(-r --reloc)"{-r,--reloc}"[Display relocation information]"
  "(-s --full-contents)"{-s,--full-contents}"[Display the full contents of all sections requested]"
  "*"{-j+,--section=}"[Only display information for section]:section:(.bss .data .dynamic .dynsym .got .interp .shstrtab .symtab .text)"
)

case $variant in
  binutils)
    args+=(
    "(-a --archive-headers)"{-a,--archive-headers}"[Display archive header information]"
    "(-f --file-headers)"{-f,--file-headers}"[Display the contents of the overall file header]"
    "(-p --private-headers)"{-p,--private-headers}"[Display object format specific file header contents]"
    "*"{-P,--private=}"[Display object format specific contents]:option"
    "(-h --section-headers --headers)"{-h,--section-headers,--headers}"[Display the contents of the section headers]"
    "(-x --all-headers)"{-x,--all-headers}"[Display the contents of all headers]"
    "(-D --disassemble-all)"{-D,--disassemble-all}"[Display assembler contents of all sections]"
    "(-S --source)"{-S,--source}"[Intermix source code with disassembly]"
    "(-g --debugging)"{-g,--debugging}"[Display debug information in object file]"
    "(-e --debugging-tags)"{-e,--debugging-tags}"[Display debug information using ctags style]"
    "(-G --stabs)"{-G,--stabs}"[Display (in raw form) any STABS info in the file]"

    "*-W-[Display DWARF info in the file]::dwarf section:->short_dwarf_names"
    "*--dwarf=-[Display DWARF info in the file]::dwarf section:->dwarf_names"

    "(-t --syms)"{-t,--syms}"[Display the contents of the symbol table(s)]"
    "(-T --dynamic-syms)"{-T,--dynamic-syms}"[Display the contents of the dynamic symbol table]"
    "(-R --dynamic-reloc)"{-R,--dynamic-reloc}"[Display the dynamic relocation entries in the file]"
    #@<file>                  Read options from <file>

    "(- *)"{-v,--version}"[Display this program's version number]"
    "(- *)"{-i,--info}"[List object formats and architectures supported]"
    "(- *)"{-H,--help}"[Display this information]"
  
    "(-b --target)"{-b+,--target=}"[Specify the target object format]:bfdname:->bfdname"
    "(-m --architecture)"{-m+,--architecture=}"[Specify the target architecture]:machine:->machine"
    "*"{-M+,--disassembler-options=}"[Pass text OPT on to the disassembler]:opt:->disassembler_options"

    "(-E --endian)-E+[Assume endianess when disassembling]:endianess:((B\:\"Assume big endian format when disassembling\" L\:\"Assume little endian format when disassembling\"))"
    "(-E --endian)--endian=[Assume endianess when disassembling]:endianess:((big\:\"Assume big endian format when disassembling\" little\:\"Assume little endian format when disassembling\"))"

    "--file-start-context[Include context from start of file (with -S)]"
    "*"{-I+,--include=}"[Add directory to search list for source files]:directory:_files -/"
    "(-l --line-numbers)"{-l,--line-numbers}"[Include line numbers and filenames in output]"
    "(-F --file-offsets)"{-F,--file-offsets}"[Include file offsets when displaying information]"
    "(-C --demangle)-C[Decode mangled/processed symbol names]"
    "(-C --demangle)--demangle=-[Decode mangled/processed symbol names]::style:(auto gnu lucid arm hp edg gnu-v3 java gnat)"
    "(-w --wide)"{-w,--wide}"[Format output for more than 80 columns]"
    "(-z --disassemble-zeroes)"{-z,--disassemble-zeroes}"[Do not skip blocks of zeroes when disassembling]"

    "--start-address=[Only process data whose address is >= ADDR]:addr"
    "--stop-address=[Only process data whose address is <= ADDR]:addr"
    "--prefix-addresses[Print complete address alongside disassembly]"
    "(--show-raw-insn --no-show-raw-insn)"--{,no-}show-raw-insn"[Display hex alongside symbolic disassembly]"
    "--insn-width=[Display WIDTH bytes on a single line for -d]:width"
    "--adjust-vma=[Add offset to all displayed section addresses]:offset"
    "--special-syms[Include special symbols in symbol dumps]"
    "--prefix=[Add prefix to absolute paths for -S]:prefix"
    "--prefix-strip=[Strip initial directory names for -S]:level"
    "--dwarf-depth=[Do not display DIEs at depth N or greater]:n"
    "--dwarf-start=[Display DIEs starting with N, at the same depth or deeper]:n"
    "--dwarf-check[Make additional dwarf internal consistency checks]"
    )
  ;;
  elfutils)
    args+=(
      "--color=-[Colorize the output]::when:(always auto never)"
      "(- *)"{-\?,--help}"[Display help]"
      "(- *)--usage[Display usage]"
      "(- *)"{-V,--version}"[Display program version]"

    )
  ;;
  llvm)
    opts=( -S )	# no option stacking
    args=(	# start over from an empty array
      '-aarch64-neon-syntax=[chose style of NEON code (AArch64)]:style:(generic apple)'
      '-arch=[w -macho: select arch from a fat binary]:arch:(i386 x86_64)'
      '-arch-name=[specify target arch to disassemble for]:arch:->llvm_targets'
      '-archive-headers[w -macho: print archive headers]'
      '-archive-member-offsets[w -macho -archive-headers: print offset to each archive member]'
      '-bind[display Mach-O binding info]'
      '-color[use colored syntax highlighting]'
      '-data-in-code[w -macho: print data in code table]'
      "-dis-symname=[w -macho: disassemble just the specfied symbol's instructions]"
      '(-disassemble -d)'{-disassemble,-d}'[display assembler mnemonics for machine instructions]'
      '(-disassemble-all -D)'{-disassemble-all,-D}'[disassemble all instruction sections]'
      '-dsym=[w -macho -g: use the specified .dSYM file for debug info]:dsym file:_files'
      '-dwarf=[dump of dwarf debug section]:section:(frames)'
      "-dyld-id[w -macho: print the shared library's id for dylib Mach-O file]"
      '-dylibs-used[w -macho: print the shared libraries used for linked Mach-O files]'
      '-exports-trie[display Mach-O exported symbols]'
      '-fault-map-section[display contents of faultmap section]'
      '-filter-print-funcs=[only print IR for the specified functions]:function names'
      '-full-leading-addr[w -macho: print full leading address]'
      '-g[w -macho: print line information from debug info if available]'
      '-indirect-symbols[w -macho: print indirect symbol table]'
      '-info-plist[w -macho: print the info plist section]'
      '-lazy-bind[display Mach-O lazy binding info]'
      '(-line-numbers -l)'{-line-numbers,-l}'[display source line numbers with disassembly]'
      '-link-opt-hints[w -macho: print the linker optimization hints]'
      '(-macho -m)'{-macho,-m}'[use Mach-O specific object file parser]'
      '*-mattr=[target specific attributes]:attributes'
      '-mcpu=[specify target cpu type]:cpu type'
      '-no-leading-addr[w -macho: print no leading address]'
      '-no-leading-headers[print no leading headers]'
      '-no-show-raw-insn[do not print instruction bytes when disassembling]'
      '-no-symbolic-operands[w -macho: do not print operands symbolically when disassembling]'
      '-non-verbose[w -macho: print info in non-verbose form]'
      '-objc-meta-data[w -macho: print Objective-C runtime meta data]'
      '-print-after-all[print IR after each pass]'
      '-print-before-all[print IR before each pass]'
      '-print-imm-hex[use hex format for immediate values]'
      '-private-header[display only the first format specific file header]'
      '(-private-headers -p)'{-private-headers,-p}'[display format specific file headers]'
      '-r[display the relocation entries in the file]'
      '-raw-clang-ast[dump raw binary contents of clang AST section]'
      '-rebase[display Mach-O rebasing info]'
      '-rng-seed=[seed for the random number generator]:seed'
      '-s[display contents of each section]'
      '*'{-section=,-j}'[operate on the specified section only]:section'
      '(-section-headers -h)'{-section-headers,-h}'[display summaries of the headers for each section]'
      '(-source -S)'{-source,-S}'[display source inlined with disassembly]'
      '-start-address=[start disassembly at the specified address]:address'
      '-stop-address=[stop disassembly at the specified address]:address'
      '-t[display the symbol talbe]'
      '-time-passes[time each pass, print elapsed time on exit]'
      '-triple=[target triple to disassemble for]:triple'
      '-universal-headers[w -macho: print Mach-O universal headers]'
      '-verify-dom-info[verify dominator info (time consuming)]'
      '-unwind-info[display unwind information]'
      '-weak-bind[display Mach-O weak binding info]'
      '-x86-asm-syntax=[chose style of assembler code (x86)]:style:(att intel)'
      '(- *)-help[display available options]'
      '(- *)-help-list[display list of available options]'
      '(- *)-version[display version of objdump]'
    )
  ;;
esac

_arguments $opts -C : "$args[@]" $files && return 0

case "$state" in
  short_dwarf_names)
    _values -s "" "dwarf section" "l[rawline]" "L[decodedline]" "i[info]" "a[abbrev]" "p[pubnames]" "r[aranges]" "m[macro]" "f[frames]" "F[frames-interp]" "s[str]" "o[loc]" "R[Ranges]" "t[pubtypes]"
  ;;
  dwarf_names)
    _values -s , "dwarf section" rawline decodedline info abbrev pubnames aranges macro frames frames-interp str loc Ranges pubtypes gdb_index trace_info trace_abbrev trace_aranges addr cu_index
  ;;
  bfdname)
    _values "object format" "${(z)${(@M)${(f)$(_call_program targets objdump --help)}##* supported targets:*}##*: }"
  ;;
  machine)
    _values "machine architecture" "${(@)${(z)${(@M)${(f)$(_call_program targets objdump --help)}##* supported architectures:*}##*: }//:/\\:}"
  ;;
  disassembler_options)
    _values -s , "disassembler options" "${(@)${(@)${(@M)${(f)${(ps.-M switch.)$(_call_program targets objdump --help)}[2]}:#  [^ ]*}#  }%% *}"
  ;;
  llvm_targets)
    _values "target architecture" "${(z)${(@)${(f)$(_call_program targets
	    ${~words[1]} -version)##*Registered Targets:}/ -*}}"
  ;;
esac