Commit 6e826c47 authored by Richard Levitte's avatar Richard Levitte
Browse files

Android build: use ANDROID_NDK_HOME rather than ANDROID_NDK 



It apepars that ANDROID_NDK_HOME is the recommended standard
environment variable for the NDK.

We retain ANDROID_NDK as a fallback.

Fixes #8101

Reviewed-by: default avatarMatt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8103)
parent e85d19c6

Configurations/15-android.conf

+12 −7
Original line number Diff line number Diff line
@@ -22,13 +22,18 @@ 
                return $android_ndk = { bn_ops => "BN_AUTO" };

            }



            my $ndk = $ENV{ANDROID_NDK};

            die "\$ANDROID_NDK is not defined"  if (!$ndk);

            my $ndk_var;

            my $ndk;

            foreach $ndk_var (qw(ANDROID_NDK_HOME ANDROID_NDK)) {

                $ndk = $ENV{$ndk_var};

                last if defined $ndk;

            }

            die "\$ANDROID_NDK_HOME is not defined"  if (!$ndk);

            if (!-d "$ndk/platforms" && !-f "$ndk/AndroidVersion.txt") {

                # $ndk/platforms is traditional "all-inclusive" NDK, while

                # $ndk/AndroidVersion.txt is so-called standalone toolchain

                # tailored for specific target down to API level.

                die "\$ANDROID_NDK=$ndk is invalid";

                die "\$ANDROID_NDK_HOME=$ndk is invalid";

            }

            $ndk = canonpath($ndk);
@@ -90,7 +95,7 @@ 
                (my $tridefault = $triarch) =~ s/^arm-/$arm-/;

                (my $tritools   = $triarch) =~ s/(?:x|i6)86(_64)?-.*/x86$1/;

                $cflags .= " -target $tridefault "

                        .  "-gcc-toolchain \$(ANDROID_NDK)/toolchains"

                        .  "-gcc-toolchain \$($ndk_var)/toolchains"

                        .  "/$tritools-4.9/prebuilt/$host";

                $user{CC} = "clang" if ($user{CC} !~ m|clang|);

                $user{CROSS_COMPILE} = undef;
@@ -127,13 +132,13 @@ 
                die "no $incroot/$triarch" if (!-d "$incroot/$triarch");

                $incroot =~ s|^$ndk/||;

                $cppflags  = "-D__ANDROID_API__=$api";

                $cppflags .= " -isystem \$(ANDROID_NDK)/$incroot/$triarch";

                $cppflags .= " -isystem \$(ANDROID_NDK)/$incroot";

                $cppflags .= " -isystem \$($ndk_var)/$incroot/$triarch";

                $cppflags .= " -isystem \$($ndk_var)/$incroot";

            }



            $sysroot =~ s|^$ndk/||;

            $android_ndk = {

                cflags   => "$cflags --sysroot=\$(ANDROID_NDK)/$sysroot",

                cflags   => "$cflags --sysroot=\$($ndk_var)/$sysroot",

                cppflags => $cppflags,

                bn_ops   => $arch =~ m/64$/ ? "SIXTY_FOUR_BIT_LONG"

                                            : "BN_LLONG",

NOTES.ANDROID

+7 −7
Original line number Diff line number Diff line
@@ -23,7 +23,7 @@ 
 platform. Though you still need to know the prefix to extend your PATH,

 in order to invoke $(CROSS_COMPILE)gcc and company. (Configure will fail

 and give you a hint if you get it wrong.) Apart from PATH adjustment

 you need to set ANDROID_NDK environment to point at NDK directory

 you need to set ANDROID_NDK_HOME environment to point at NDK directory

 as /some/where/android-ndk-<ver>. Both variables are significant at both

 configuration and compilation times. NDK customarily supports multiple

 Android API levels, e.g. android-14, android-21, etc. By default latest
@@ -32,13 +32,13 @@ 
 target platform version. For example, to compile for ICS on ARM with

 NDK 10d:



    export ANDROID_NDK=/some/where/android-ndk-10d

    PATH=$ANDROID_NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin:$PATH

    export ANDROID_NDK_HOME=/some/where/android-ndk-10d

    PATH=$ANDROID_NDK_HOME/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin:$PATH

    ./Configure android-arm -D__ANDROID_API__=14

    make



 Caveat lector! Earlier OpenSSL versions relied on additional CROSS_SYSROOT

 variable set to $ANDROID_NDK/platforms/android-<api>/arch-<arch> to

 variable set to $ANDROID_NDK_HOME/platforms/android-<api>/arch-<arch> to

 appoint headers-n-libraries' location. It's still recognized in order

 to facilitate migration from older projects. However, since API level

 appears in CROSS_SYSROOT value, passing -D__ANDROID_API__=N can be in
@@ -53,9 +53,9 @@ 


 Another option is to create so called "standalone toolchain" tailored

 for single specific platform including Android API level, and assign its

 location to ANDROID_NDK. In such case you have to pass matching target

 name to Configure and shouldn't use -D__ANDROID_API__=N. PATH adjustment

 becomes simpler, $ANDROID_NDK/bin:$PATH suffices.

 location to ANDROID_NDK_HOME. In such case you have to pass matching

 target name to Configure and shouldn't use -D__ANDROID_API__=N. PATH

 adjustment becomes simpler, $ANDROID_NDK_HOME/bin:$PATH suffices.



 Running tests (on Linux)

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