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Android build: use ANDROID_NDK_HOME rather than ANDROID_NDK

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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: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8103)
This commit is contained in:
Richard Levitte 2019-01-28 14:53:19 +01:00
parent e85d19c68e
commit 6e826c471b
2 changed files with 19 additions and 14 deletions
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19
Configurations/15-android.conf
View File

@ -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",

14
NOTES.ANDROID
View File

@ -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)
------------------------