droid-ndk-gcc for NDK r7

#!/usr/bin/ruby

=begin

  droid-wrapper : Android toolchain wrapper script
  version 1.0.5

  Copyright 2009-2010, Takuya Murakami, Yoshiaki Okuyama.

  Author:
    Takuya Murakami <tmurakam at tmurakam.org>
    Yoshiaki Okuyama <okuyam2y at gmail.com>

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

=end

debug = false
if (ENV["DROID_WRAPPER_DEBUG"])
    debug = true
end

droid_root = ENV["DROID_ROOT"]
if (!droid_root)
    #STDERR.puts "You must specify DROID_ROOT"
    #exit 1
    droid_root = "/opt/android-ndk"
end
droid_target = ENV["DROID_TARGET"]
if (!droid_target)
    #STDERR.puts "You must specify DROID_TARGET"
    #exit 1
    droid_target = "general"
end

droid_host = ENV["DROID_HOST"]
if (!droid_host)
    droid_host = "linux-x86"
end

toolver = "4.4.3"

#toolchain = "#{droid_root}/prebuilt/#{droid_host}/toolchain/arm-eabi-#{toolver}"
toolchain = "#{droid_root}/toolchains/arm-linux-androideabi-#{toolver}/prebuilt/#{droid_host}"
#alib = "#{droid_root}/out/target/product/#{droid_target}/obj/lib"
alib = "#{droid_root}/platforms/android-8/arch-arm/usr/lib/"

# many compiler/linker flags were extracted from
# build/core/combo/linux-arm.mk file.

cflags =
    [
     "-DANDROID",
     "-msoft-float",
     "-mandroid",
     "-fpic",
     "-ffunction-sections",
     "-funwind-tables",
     "-fstack-protector",
     "-fno-short-enums",
     "-fno-exceptions",
     "-fmessage-length=0",
     "-Wno-multichar",
     "--sysroot=#{droid_root}/platforms/android-8/arch-arm",
     #"-mthumb-interwork",

     "-I#{droid_root}/system/core/include",
     "-I#{droid_root}/hardware/libhardware/include",
     "-I#{droid_root}/hardware/libhardware_legacy/include",
     "-I#{droid_root}/hardware/ril/include",
     "-I#{droid_root}/dalvik/libnativehelper/include",
     "-I#{droid_root}/frameworks/base/include",
     "-I#{droid_root}/frameworks/base/opengl/include",
     "-I#{droid_root}/external/skia/include",
     "-I#{droid_root}/out/target/product/#{droid_target}/obj/include",
     "-I#{droid_root}/bionic/libc/arch-arm/include",
     "-I#{droid_root}/bionic/libc/include",
     "-I#{droid_root}/bionic/libstdc++/include",
     "-I#{droid_root}/bionic/libc/kernel/common",
     "-I#{droid_root}/bionic/libc/kernel/arch-arm",
     "-I#{droid_root}/bionic/libm/include",
     "-I#{droid_root}/bionic/libm/include/arch/arm",
     "-I#{droid_root}/bionic/libthread_db/include",
     "-I#{droid_root}/bionic/libm/arm",
     "-I#{droid_root}/bionic/libm",
     "-I#{droid_root}/out/target/product/#{droid_target}/obj/SHARED_LIBRARIES/libm_intermediates"
    ]

link_args1 =
    [
     "-Bdynamic",
     "-mandroid",
     #"-Wl,-T,#{droid_root}/build/core/armelf.x",
     "-Wl,-dynamic-linker,/system/bin/linker",
     "-Wl,--gc-sections",
     "-Wl,-z,nocopyreloc",
     "-Wl,--no-undefined",
     "-Wl,-rpath-link=#{alib}",
     "-Wl,-rpath,/system/lib",
     "-L#{alib}",
     "-nostdlib",
    ]
link_args2 = [
     "#{alib}/crtbegin_dynamic.o",
     "#{toolchain}/lib/gcc/arm-linux-androideabi/#{toolver}/libgcc.a",
     "#{alib}/crtend_android.o",
     "-lc",
     "-lm",
    ]

shlib_args =
    [
     "-nostdlib",
     "-Wl,-T,#{droid_root}/build/core/armelf.xsc",
     "-Wl,--gc-sections",
     "-Wl,-shared,-Bsymbolic",
     "-L#{alib}",
     "-Wl,--no-whole-archive",
     "-lc",
     "-lm",
     "-Wl,--no-undefined",
     "#{toolchain}/lib/gcc/arm-eabi/#{toolver}/interwork/libgcc.a",
     "-Wl,--whole-archive",
     "-Wl,--warn-unresolved-symbols"
    ]

### check myself
prog = nil
oprog = nil
if ($0 =~ /^.*-([^-]+)$/)
    oprog = $1
    prog = "#{toolchain}/bin/arm-linux-androideabi-#{$1}"
else
    STDERR.puts "internal error: invalid command name."
    exit 1
end

isLD = false
if (oprog == "ld")
    isLD = true
end

### parse command line options
if (["ar", "nm", "objcopy", "objdump", "ranlib", "strip"].include?(oprog))
    mode = "passthrough"
else
    mode = "link"

    ARGV.each do |arg|
        case arg
        when "-c", "-S", "-E", "-r"
            mode = "compile"

        when "-shared"
            mode = "shlib"
        end
    end
end

### generate command line
argv = ARGV

case mode
when "compile"
    argv = cflags + ARGV

when "link"
    if (!isLD)
        argv = cflags + link_args1 + ARGV + link_args2
    else
        argv = link_args1 + ARGV + link_args2
    end

when "shlib"
    if (!isLD)
        argv = cflags + shlib_args + ARGV
    else
        argv = shlib_args + ARGV
    end
end

# remove -Wl options for linker
if (isLD)
    argv2 = Array.new

    argv.each do |arg|
        if (arg =~ /^-Wl,(.*)$/)
            argv2 += $1.split(/,/)
        else
            argv2.push(arg)
        end
    end
    argv = argv2
end

# Note: Behavior of this command line might differ from
# following exec call, because each arguments are not quoted.
puts "droid-debug(#{mode}): #{prog} #{argv.join(" ")}" if (debug)

exec [prog, prog], *argv