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#! /usr/bin/env bash

# Note: shouldn't be executed directly, src_exe and src_dir must be set.

# Common link.exe driver that expects the VCBIN, SDKBIN, and LIB variables to
# be set for the specific MSVC version/configuration.

trap "{ exit 1; }" ERR
set -o errtrace # Trap in functions.

function info () { echo "$*" 1>&2; }
function error () { info "$*"; exit 1; }

source "$src_dir/msvc-common/msvc-common"

# Translate absolute paths from POSIX to Windows. Use bash array to store
# arguments in case they contain spaces.
#
# This needs to be done for both certain option values and arguments.
# Arguments are tricky in that unless we recognize every option, and option
# may look a lot like an absolute POSIX path (e.g., /nologo). The heuristics
# that we are going to use here is that if the argument starts with / and
# contains at least one more /, then we consider it an argument. Otherwise --
# an options. We will also explicitly recognize certain options which may
# not fit this scheme well.
#
# Note that link.exe /? is missing some options that are documented in MSDN.
#
args=()

while [ $# -gt 0 ]; do
  case ${1^^} in # Uppercase for case-insensitive comparison.

    # @@ TODO: handle the rest/obscure options.
    #
    #  @file
    #  /ASSEMBLYLINKRESOURCE:filename
    #  /ASSEMBLYMODULE:filename
    #  /ASSEMBLYRESOURCE:filename[,[name][,PRIVATE]]
    #  /BASE:{address[,size]|@filename,key}
    #+ /DEF:filename
    #+ /DEFAULTLIB:library
    #+ /DELAYLOAD:dll
    #  /FASTGENPROFILE:PGD=filename|...
    #  /GENPROFILE:PGD=filename|...
    #+ /IDLOUT:filename
    #+ /IMPLIB:filename
    #+ /KEYFILE:filename
    #+ /LIBPATH:dir
    #+ /MANIFESTFILE:filename
    #+ /MANIFESTINPUT:filename
    #+ /MAP:filename
    #+ /MIDL:@commandfile
    #+ /NODEFAULTLIB:library
    #+ /ORDER:@filename
    #+ /OUT:filename
    #+ /PDB:filename
    #+ /PDBALTPATH:filename
    #+ /PDBSTRIPPED:filename
    #+ /PGD:filename
    #+ /STUB:filename
    #+ /TLBOUT:filename
    #  /USEPROFILE:PGD=filename
    #+ /WHOLEARCHIVE:library
    #+ /WINMDFILE:filename
    #  /WINMDKEYCONTAINER:name
    #+ /WINMDKEYFILE:filename

    [/-]DEF:* | \
    [/-]MAP:* | \
    [/-]OUT:* | \
    [/-]PDB:* | \
    [/-]PGD:*)
      args=("${args[@]}" "$(split_translate 5 $1)")
      shift
      ;;

    [/-]STUB:*)
      args=("${args[@]}" "$(split_translate 6 $1)")
      shift
      ;;

    [/-]MIDL:@*)
      args=("${args[@]}" "$(split_translate 7 $1)")
      shift
      ;;

    [/-]IMPLIB:* | \
    [/-]IDLOUT:* | \
    [/-]TLBOUT:* | \
    [/-]ORDER:@*)
      args=("${args[@]}" "$(split_translate 8 $1)")
      shift
      ;;

    [/-]KEYFILE:* | \
    [/-]LIBPATH:*)
      args=("${args[@]}" "$(split_translate 9 $1)")
      shift
      ;;

    [/-]DELAYLOAD:* | \
    [/-]WINMDFILE:*)
      args=("${args[@]}" "$(split_translate 11 $1)")
      shift
      ;;

    [/-]DEFAULTLIB:* | \
    [/-]PDBALTPATH:*)
      args=("${args[@]}" "$(split_translate 12 $1)")
      shift
      ;;

    [/-]PDBSTRIPPED:*)
      args=("${args[@]}" "$(split_translate 13 $1)")
      shift
      ;;

    [/-]NODEFAULTLIB:* | \
    [/-]MANIFESTFILE:* | \
    [/-]WHOLEARCHIVE:* | \
    [/-]WINMDKEYFILE:*)
      args=("${args[@]}" "$(split_translate 14 $1)")
      shift
      ;;

    [/-]MANIFESTINPUT:*)
      args=("${args[@]}" "$(split_translate 15 $1)")
      shift
      ;;

    # Handle other options with separate values. This makes sure we don't try
    # to path-translate them.
    #

    # Aren't any.

    # Handle other options with combined values that could possibly be
    # interpreted as paths.
    #
    # /ENTRY:symbol
    # /EXPORT:symbol
    # /INCLUDE:symbol
    # /KEYCONTAINER:name
    # /MANIFESTDEPENDENCY:manifest dependency
    # /MANIFESTUAC[:{NO|UAC fragment}]
    # /MAPINFO:{EXPORTS}
    # /MERGE:from=to
    # /SECTION:name,[[!]{DEKPRSW}][,ALIGN=#]
    #
    [/-]ENTRY:*              | \
    [/-]EXPORT:*             | \
    [/-]INCLUDE:*            | \
    [/-]KEYCONTAINER:*       | \
    [/-]MANIFESTDEPENDENCY:* | \
    [/-]MANIFESTUAC:*        | \
    [/-]MAPINFO:*            | \
    [/-]MERGE:*              | \
    [/-]SECTION:*            | \
    [/-]REMOVE:*)
      args=("${args[@]}" "$1")
      shift
      ;;

    # Option or argument.
    #
    *)
      # If contains at least two slashes, treat it as a path.
      #
      if [[ "$1" == /*/* ]]; then
	args=("${args[@]}" "$(translate $1)")
      else
	args=("${args[@]}" "$1")
      fi
      shift
      ;;
  esac
done

export LIB

# link.exe may need to run mt.exe which is in the SDK.
#
export WINEPATH="$VCBIN;$VCDLL;$SDKBIN"

# link.exe always sends diagnostics to stdout.
#
msvc_exec 1 "$VCBIN\\link.exe" "${args[@]}"