Browse Source

Update NOTES.ANDROID for newer NDK versions + small fixes.

Fixes #8941

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10478)
master
zero 3 years ago
committed by Pauli
parent
commit
d3a27c5ee4
1 changed files with 25 additions and 14 deletions
  1. +25
    -14
      NOTES.ANDROID

+ 25
- 14
NOTES.ANDROID View File

@ -15,22 +15,33 @@
Configuration
-------------
Android is naturally cross-compiled target and you can't use ./config.
Android is a naturally cross-compiled target and you can't use ./config.
You have to use ./Configure and name your target explicitly; there are
android-arm, android-arm64, android-mips, android-mip64, android-x86
and android-x86_64. Do not pass --cross-compile-prefix (as you might
be tempted), as it will be "calculated" automatically based on chosen
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_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
one available is chosen. If you need to target older platform, pass
additional -D__ANDROID_API__=N to Configure. N is numeric value of the
target platform version. For example, to compile for ICS on ARM with
NDK 10d:
and android-x86_64 (*MIPS targets are no longer supported with NDK R20+).
Do not pass --cross-compile-prefix (as you might be tempted), as it will
be "calculated" automatically based on chosen platform. Though you still
need to know the prefix to extend your PATH, in order to invoke
$(CROSS_COMPILE)clang [*gcc on NDK 19 and lower] and company. (Configure
will fail and give you a hint if you get it wrong.) Apart from PATH
adjustment you need to set ANDROID_NDK_HOME environment to point at the
NDK directory. If you're using a side-by-side NDK the path will look
something like /some/where/android-sdk/ndk/<ver>, and for a standalone
NDK the path will be something like /some/where/android-ndk-<ver>.
Both variables are significant at both configuration and compilation times.
The NDK customarily supports multiple Android API levels, e.g. android-14,
android-21, etc. By default latest API level is chosen. If you need to
target an older platform pass the argument -D__ANDROID_API__=N to Configure,
with N being the numerical value of the target platform version. For example,
to compile for Android 10 arm64 with a side-by-side NDK r20.0.5594570
export ANDROID_NDK_HOME=/home/whoever/Android/android-sdk/ndk/20.0.5594570
PATH=$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin:$ANDROID_NDK_HOME/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin:$PATH
./Configure android-arm64 -D__ANDROID_API__=29
make
Older versions of the NDK have GCC under their common prebuilt tools directory, so the bin path
will be slightly different. EG: to compile for ICS on ARM with NDK 10d:
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


Loading…
Cancel
Save