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#compdef nm

local args files

_nm_object_file() {
  [[ -x $REPLY || $REPLY = *.([ao]|so|elf) ]]
}

files="*:object file:_files -g '*(-.e:_nm_object_file:)'"
args=(
  '(-A -o --print-file-name)'{-A,-o,--print-file-name}'[print name of input file on each line]'
  '(--demangle)-C[decode symbol names]'
  '(-D --dynamic)'{-D,--dynamic}'[display dynamic symbols instead of normal ones]'
  '(-g --extern-only)'{-g,--extern-only}'[display only global symbols]'
  '(-t --radix -o -x)'{-t,--radix}'[specify radix for numeric values]:radix:((d\:decimal o\:octal x\:hexadecimal))'
)

if _pick_variant gnu=GNU unix -V; then
  compset -P '@' && files='*:options file:_files'
  args+=(
    '(- *)--help[display help information]'
    '(- *)--version[display version information]'
    '(-f --format -P --portability)-B[same as --format=bsd]'
    '(-C --no-demangle)--demangle=-[decode symbol names]::style:(auto gnu lucid arm hp edg gnu-v3 java gnat)'
    "(-C --demangle)--no-demangle[don't decode symbol names]"
    '(-u --undefined-only)--defined-only[display only defined symbols]'
    '(-f --format -P)'{-f+,--format=}'[specify output format]:format:(bsd sysv posix)'
    '(-l --line-numbers)'{-l,--line-numbers}'[display source file and line numbers from debug information]'
    '(-n --numeric-sort -p --no-sort --size-sort)'{-n,--numeric-sort}'[sort symbols numerically by address]'
    '(-p --no-sort -n --numeric-sort -r -P --reverse-sort --size-sort)'{-p,--no-sort}'[do not sort symbols]'
    '(-P --portability -B -f --format)'{-P,--portability}'[same as --format=posix]'
    '(-r --reverse-sort -p --no-sort --size-sort)'{-r,--reverse-sort}'[reverse sort order]'
    '--plugin[load specified plugin]:plugin'
    '(-u --undefined-only --defined-only)'{-u,--undefined-only}'[display only undefined symbols]'
    "--target=[target object format]:targets:(${${(@M)${(f)$(_call_program targets nm --help)}:#*supported targets:*}##*: })"
    '(-a --debug-syms)'{-a,--debug-syms}'[display debugger-only symbols]'
    '(-S --print-size)'{-S,--print-size}'[print size of defined symbols]'
    '(-s --print-armap)'{-s,--print-armap}'[include index for symbols from archive members]'
    '(-p --no-sort -n --numeric-sort -r)--size-sort[sort symbols by size]'
    '--special-syms[include special symbols in the output]'
    '--synthetic[display synthetic symbols as well]'
  )
else
  # following flags are accurate for Solaris
  args=( ${args:#(|*\)(\*|))-[o-]*}
    "-h[don't display column headers]"
    '-l[distinguish WEAK symbols with * character]'
    '(-t -x)-o[print values in octal]'
    '(-v)-n[sort symbols by name]'
    '(-P)-p[produce parsable output]'
    '(-p)-P[portable output format]'
    '(-r)-R[print archive name, object file and symbol name]'
    '-r[prepend name of input file to each symbol name]'
    '-s[print section name instead of index]'
    '-u[print undefined symbols only]'
    '(-n)-v[sort external symbols by value]'
    '-V[display version of the nm command]'
    '(-o -t)-x[print values in hexadecimal]'
  )
fi

_arguments -s "$args[@]" $files