# $Id: Portfile 135516 2015-04-25 08:43:49Z jeremyhu@macports.org $

PortSystem              1.0
PortGroup               compiler_blacklist_versions 1.0

name                    ld64
epoch                   2
version                 2
categories              devel
platforms               darwin
maintainers             jeremyhu
homepage                http://opensource.apple.com/source/${name}/
master_sites            http://opensource.apple.com/tarballs/${name}/
license                 APSL-2
description             ld64 is the new mach-o linker
long_description        ld64 combines several object files and libraries, \
                        resolves references, and produces an ouput file.

subport ld64-97 {
    # XCode 3.2.6
    version             97.17

    checksums           ld64-97-standalone-libunwind-headers.patch \
                        rmd160  f6da71e097aa61b1055b3fdc12cd39aafed5f492 \
                        sha256  370d02757ea628b5dd145c099e42fc4eb88cc09cf459a59e32d14bbc9b4a105e \
                        ld64-97.17.tar.gz \
                        rmd160  d52df7d7f741c8bedd29cbac73dbb9db992b4795 \
                        sha256  02bd46af0809eaa415d096d7d41c3e8e7d80f7d8d181840866fb87f036b4e089

    set makefile	"Makefile-97"
    set ld64_ver        97

    compiler.blacklist-append *clang*

    patchfiles \
        ld64-version.patch \
        ld64-97-no-LTO.patch \
        ld64-97-ppc-branch-island.patch \
        ld64-97-arm_types_PR38931.patch \
        ld64-97-long-branch-warn.patch \
        ld64-97-standalone-libunwind-headers.patch \
        ld64-97-no-Availability.h.patch \
        ld64-97-BaseAtomImplicitDecl.patch \
        ld64-97-no-ppc-thread_status.patch

    if {${os.major} >= 14} {
        pre-fetch {
            ui_error "$subport is not supported on Yosemite or later."
            error "unsupported platform"
        }
    }
}

subport ld64-127 {
    # XCode 4.2
    # This was the last ld64 release that supported linking ppc executables.
    version             127.2
    revision            2

    checksums           rmd160  8ee709341549a1944732daef6ebab7ef1acfcc6e \
                        sha256  97b75547b2bd761306ab3e15ae297f01e7ab9760b922bc657f4ef72e4e052142

    set makefile	"Makefile-127"
    set ld64_ver        127

    patchfiles-append \
        ld64-version.patch \
        ld64-134-missing-include.patch \
        ld64-127-any-cctools.patch \
        ld64-127-long-branch-warn.patch \
        ld64-127-cxx_initializer_order_and_sim.patch \
        ld64-127-ppc.patch \
        ld64-97-no-Availability.h.patch \
        PR-12249048.patch \
        PR-12057707.patch \
        PR-13282463.patch \
        ld64-ppc-9610466.patch
}

subport ld64-136 {
    # XCode 4.6
    version             136
    revision            2

    checksums           rmd160  4a2930ccdd398b63a108810e90293ab96dc154a0 \
                        sha256  99d6c4acb6d4cdf45772951dd2308222aa966763170137459a9d276674645d9e
 
    set makefile        "Makefile-133"
    set ld64_ver        136

    patchfiles-append \
        ld64-version.patch \
        ld64-133-no-CrashReporterClient.h.patch \
        ld64-134-missing-include.patch \
        ld64-136-i386-badAddress.patch \
        PR-13282463.patch \
        ld64-ppc-9610466.patch

    if {${configure.cxx_stdlib} eq "libstdc++"} {
        patchfiles-append   ld64-136-hash_set.patch
    }

    if {${os.major} <= 9} {
        pre-fetch {
            ui_error "$subport is not supported on Leopard or earlier.  It requires the blocks runtime."
            error "unsupported platform"
        }
    }
}

subport ld64-236 {
    # XCode 5.1
    version             236.3

    checksums           rmd160  6a3f44aa9ae57a60d2cff5b3d47be7972ad83029 \
                        sha256  8ef36729b643201081ab45ebd8586ede8f9968bc17614b679a940faa82875ca6

    # http://trac.macports.org/ticket/43737
    # < 100 is a guess.  Xcode 4.1 might work, so I'm leaving it as an option unless someone reports a failure.
    compiler.blacklist-append *gcc* {clang < 100}

    set makefile        "Makefile-133"
    set ld64_ver        236

    patchfiles-append \
        ld64-version.patch \
        ld64-133-no-CrashReporterClient.h.patch \
        ld64-134-missing-include.patch \
        ld64-136-i386-badAddress.patch \
        PR-16935960.patch \
        PR-16936488.patch \
        ld64-ppc-9610466.patch

    if {${configure.cxx_stdlib} eq "libstdc++"} {
        patchfiles-append   ld64-236-hash_set.patch
    }

    if {${os.major} <= 9} {
        pre-fetch {
            ui_error "$subport is not supported on Leopard or earlier.  It requires the blocks runtime."
            error "unsupported platform"
        }
    }
}

subport ld64-latest {
    # XCode 6.1
    version             241.9

    checksums           rmd160  1ee4a7be89b96a8ce3ca6f6dc803dfd0852d29b8 \
                        sha256  3594e87c626c3b5abab6470cac6f27b367f1efcee60eb3d0f6b6d4ecf9b24230

    # http://trac.macports.org/ticket/43737
    # < 100 is a guess.  Xcode 4.1 might work, so I'm leaving it as an option unless someone reports a failure.
    compiler.blacklist-append *gcc* {clang < 100}

    set makefile        "Makefile-133"
    set ld64_ver        latest

    patchfiles-append \
        ld64-version.patch \
        ld64-133-no-CrashReporterClient.h.patch \
        ld64-134-missing-include.patch \
        ld64-136-i386-badAddress.patch \
        ld64-ppc-9610466.patch

    configure.cxx_stdlib libc++
    depends_lib-append port:libcxx
    supported_archs i386 x86_64

    pre-fetch {
        if {![file exists /usr/lib/libc++.dylib]} {
            ui_error "$name requires a C++11 runtime, which your configuration does not allow"
            error "unsupported configuration"
        }
    }

}

variant universal {}

if {${subport} eq ${name}} {
    distfiles
    build {}
    use_configure no

    variant ld64_97 conflicts ld64_127 ld64_136 ld64_236 description {Use ld64-97 as the default linker (last version that works on Tiger)} {}
    variant ld64_127 conflicts ld64_97 ld64_136 ld64_236 description {Use ld64-127 as the default linker (last version to support ppc)} {}
    variant ld64_136 conflicts ld64_97 ld64_127 ld64_236 description {Use ld64-136 as the default linker (last version that works on Leopard)} {}
    variant ld64_236 conflicts ld64_97 ld64_127 ld64_136 description {Use ld64-236 as the default linker (last version that builds against OS X's libstdc++)} {}

    if {![variant_isset ld64_97] && ![variant_isset ld64_127] && ![variant_isset ld64_136]} {
        if {${os.major} < 9} {
            default_variants +ld64_97
        } elseif {${os.major} < 10 || "ppc" in [get_canonical_archs]} {
            default_variants +ld64_127
        } elseif {${os.major} < 11} {
            default_variants +ld64_136
        }
    }

    if {[variant_isset ld64_97]} {
        set ld64_ver 97
    } elseif {[variant_isset ld64_127]} {
        set ld64_ver 127
    } elseif {[variant_isset ld64_136]} {
        set ld64_ver 136
    } elseif {[variant_isset ld64_236]} {
        set ld64_ver 236
    } else {
        set ld64_ver latest
    }

    depends_run         port:ld64-${ld64_ver}

    destroot {
        ln -s dyldinfo-${ld64_ver} ${destroot}${prefix}/bin/dyldinfo
        ln -s ld-${ld64_ver} ${destroot}${prefix}/bin/ld
        ln -s machocheck-${ld64_ver} ${destroot}${prefix}/bin/machocheck
        ln -s ObjectDump-${ld64_ver} ${destroot}${prefix}/bin/ObjectDump
        ln -s rebase-${ld64_ver} ${destroot}${prefix}/bin/rebase
        ln -s unwinddump-${ld64_ver} ${destroot}${prefix}/bin/unwinddump

        file mkdir ${destroot}${prefix}/libexec/ld64
        ln -s ld-${ld64_ver} ${destroot}${prefix}/libexec/ld64/ld
    }
} else {
    depends_build       path:include/mach-o/dyld_priv.h:dyld-headers \
                        path:include/mach-o/arm/reloc.h:libmacho-headers

    if {[string match macports-clang-* ${configure.compiler}]} {
        # For a new enough install_name_tool
        depends_build-append port:cctools
    }

    # We don't set llvmXX as the default variant on Tiger because it would introduce a
    # dependency cycle as llvm requires apple-gcc42 and ld64 to build correctly.  Users
    # wanting LTO support in ld64 on Tiger can install the +llvm variant after llvm
    # has been installed.

    if {![variant_isset llvm33] && ![variant_isset llvm34] && ![variant_isset llvm35] && ![variant_isset llvm36] && ![variant_isset llvm37]} {
        if {${os.major} >= 13} {
            default_variants +llvm35
        } elseif {${os.major} >= 10} {
            default_variants +llvm34
        } elseif {${os.major} >= 9} {
            default_variants +llvm33
        }

        if {![variant_isset llvm33] && ![variant_isset llvm34] && ![variant_isset llvm35] && ![variant_isset llvm36] && ![variant_isset llvm37] && ${os.major} >= 9} {
            ui_error "Your platform cannot be configured without LTO support in ld64.  Please enable one of the llvmXX variants, and try again."
            return -code error "Your platform cannot be configured without LTO support in ld64.  Please enable one of the llvmXX variants, and try again."
        }
    }

    set llvm_version {}
    variant llvm33 conflicts llvm34 llvm35 llvm36 llvm37 description {Use llvm-3.3 for libLTO} {
        set llvm_version        3.3
        depends_lib-append      port:llvm-${llvm_version}
    }

    variant llvm34 conflicts llvm33 llvm35 llvm36 llvm37 description {Use llvm-3.4 for libLTO} {
        set llvm_version        3.4
        depends_lib-append      port:llvm-${llvm_version}
    }

    variant llvm35 conflicts llvm33 llvm34 llvm36 llvm37 description {Use llvm-3.5 for libLTO} {
        set llvm_version        3.5
        depends_lib-append      port:llvm-${llvm_version}
    }

    variant llvm36 conflicts llvm33 llvm34 llvm35 llvm37 description {Use llvm-3.6 for libLTO} {
        set llvm_version        3.6
        depends_lib-append      port:llvm-${llvm_version}
    }

    variant llvm37 conflicts llvm33 llvm34 llvm35 llvm36 description {Use llvm-3.7 for libLTO} {
        set llvm_version        3.7
        depends_lib-append      port:llvm-${llvm_version}
    }

    if {${os.major} < 10} {
        # Leopard and earlier didn't have libunwind.h in the SDK
        depends_build-append    path:include/libunwind.h:libunwind-headers
    }

    compiler.blacklist-append gcc-4.0

    pre-fetch {
        if {${os.major} < 9} {
            if {${llvm_version} != ""} {
                if {![file exists ${prefix}/bin/llvm-config-mp-${llvm_version}]} {
                    ui_error "You must first install ld64 without llvm support to build llvm.  After llvm is installed, you can reinstall ld64 with the llvm variant."
                    return -code error "You must first install ld64 without llvm support to build llvm.  After llvm is installed, you can reinstall ld64 with the llvm variant."
                }
            }
        }
    }

    post-extract {
        file copy ${filespath}/${makefile} ${worksrcpath}/Makefile
    }

    post-patch {
        reinplace "s|@@VERSION@@|${version}|g" \
            ${worksrcpath}/src/ld/Options.cpp

        if {${os.major} < 9} {
            # No CommonCrypto, use openssl
            reinplace "s:<CommonCrypto/CommonDigest.h>:<openssl/md5.h>:" \
                ${worksrcpath}/src/ld/MachOWriterExecutable.hpp
            reinplace "s:CC_MD5:MD5:" \
                ${worksrcpath}/src/ld/MachOWriterExecutable.hpp

            reinplace "s:-Wl,-exported_symbol,__mh_execute_header::g" \
                ${worksrcpath}/Makefile

            foreach reg {cr ctr eax ebp ebx ecx edi edx eip esi esp lr mq r0 r1 r10 r11 r12 r13 r14 r15 r16 r17 r18 r19 r2 r20 r21 r22 r23 r24 r25 r26 r27 r28 r29 r3 r30 r31 r4 r5 r6 r7 r8 r9 rax rbp rbx rcx rdi rdx rip rsi rsp srr0 srr1 vrsave xer} {
                reinplace "s|__${reg}|${reg}|g" ${worksrcpath}/src/ld/parsers/libunwind/Registers.hpp
            }
        }
    }

    configure {
        system "cd ${worksrcpath} && ${build.cmd} src/ld/configure.h"
    }

    set cxx_stdlibflags {}
    if {[string match *clang* ${configure.cxx}]} {
        set cxx_stdlibflags -stdlib=${configure.cxx_stdlib}
    }

    build.args \
        CC="${configure.cc}" \
        CXX="${configure.cxx}" \
        OTHER_CPPFLAGS="${configure.cppflags}" \
        OTHER_CFLAGS="${configure.cflags} [get_canonical_archflags cc]" \
        OTHER_CXXFLAGS="${configure.cxxflags} ${cxx_stdlibflags} [get_canonical_archflags cxx]" \
        OTHER_LDFLAGS="${configure.ldflags} ${cxx_stdlibflags} [get_canonical_archflags ld]"

    if {${os.major} >= 11} {
        build.args-append \
            RC_SUPPORTED_ARCHS="armv6 armv7 i386 x86_64"
    }

    destroot.args \
        PREFIX=${prefix}

    pre-build {
        if {${llvm_version} != ""} {
            build.args-append LLVM_CONFIG=${prefix}/bin/llvm-config-mp-${llvm_version}
        }

        if {${os.major} < 9} {
            build.args-append OTHER_LDFLAGS_LD64=-lcrypto
        }
    }

    post-destroot {
        # ${prefix}/bin/ld will always use the llvm we built against
        # ${prefix}/libexec/ld64/ld uses relative linking for use with the llvm ports
        file mkdir ${destroot}${prefix}/libexec/ld64
        file copy ${destroot}${prefix}/bin/ld ${destroot}${prefix}/libexec/ld64/ld-${ld64_ver}

        file rename ${destroot}${prefix}/bin/dyldinfo ${destroot}${prefix}/bin/dyldinfo-${ld64_ver}
        file rename ${destroot}${prefix}/bin/ld ${destroot}${prefix}/bin/ld-${ld64_ver}
        file rename ${destroot}${prefix}/bin/machocheck ${destroot}${prefix}/bin/machocheck-${ld64_ver}
        file rename ${destroot}${prefix}/bin/ObjectDump ${destroot}${prefix}/bin/ObjectDump-${ld64_ver}
        file rename ${destroot}${prefix}/bin/rebase ${destroot}${prefix}/bin/rebase-${ld64_ver}
        file rename ${destroot}${prefix}/bin/unwinddump ${destroot}${prefix}/bin/unwinddump-${ld64_ver}

        eval delete [glob ${destroot}${prefix}/share/man/man1/*]

        if {${llvm_version} != ""} {
            system "install_name_tool -change ${prefix}/libexec/llvm-${llvm_version}/lib/libLTO.dylib \
                    @executable_path/../lib/libLTO.dylib ${destroot}${prefix}/libexec/ld64/ld-${ld64_ver}"
        }
    }
}

livecheck.type          none