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Cross-compile for androideabi (linux host!) #58

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aep opened this issue Jul 21, 2017 · 9 comments
Closed

Cross-compile for androideabi (linux host!) #58

aep opened this issue Jul 21, 2017 · 9 comments

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@aep
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aep commented Jul 21, 2017

different from #44

aep@stark: ~/kram/backtrace-rs cargo rustc  --target arm-linux-androideabi    --   -C linker=/home/aep/android/build/android-18-toolchain/bin/arm-linux-androideabi-clang

    Updating registry `https://github.com/rust-lang/crates.io-index`
   Compiling libc v0.2.26
   Compiling rustc-demangle v0.1.4
   Compiling gcc v0.3.51
   Compiling cfg-if v0.1.2
   Compiling backtrace-sys v0.1.12 (file:///home/aep/kram/backtrace-rs/backtrace-sys)
error: failed to run custom build command for `backtrace-sys v0.1.12 (file:///home/aep/kram/backtrace-rs/backtrace-sys)`
process didn't exit successfully: `/home/aep/kram/backtrace-rs/target/debug/build/backtrace-sys-c8941b55014412f0/build-script-build` (exit code: 101)
--- stdout
OPT_LEVEL = Some("0")
TARGET = Some("arm-linux-androideabi")
HOST = Some("x86_64-unknown-linux-gnu")
TARGET = Some("arm-linux-androideabi")
TARGET = Some("arm-linux-androideabi")
HOST = Some("x86_64-unknown-linux-gnu")
CC_arm-linux-androideabi = None
CC_arm_linux_androideabi = None
TARGET_CC = None
CC = None
TARGET = Some("arm-linux-androideabi")
HOST = Some("x86_64-unknown-linux-gnu")
CFLAGS_arm-linux-androideabi = None
CFLAGS_arm_linux_androideabi = None
TARGET_CFLAGS = None
CFLAGS = None
PROFILE = Some("debug")
running: "sh" "/home/aep/kram/backtrace-rs/backtrace-sys/src/libbacktrace/configure" "--with-pic" "--disable-multilib" "--disable-shared" "--disable-host-shared" "--host=arm-linux-androideabi" "--build=x86_64-unknown-linux-gnu"
checking build system type... x86_64-unknown-linux-gnu
checking host system type... arm-unknown-linux-androideabi
checking target system type... arm-unknown-linux-androideabi
checking for arm-linux-androideabi-gcc... arm-linux-androideabi-gcc
checking for C compiler default output file name... 

--- stderr
configure: error: in `/home/aep/kram/backtrace-rs/target/arm-linux-androideabi/debug/build/backtrace-sys-e9614a5f38c40b50/out':
configure: error: C compiler cannot create executables
See `config.log' for more details.
thread 'main' panicked at 'failed with: exit code: 77', backtrace-sys/build.rs:169
note: Run with `RUST_BACKTRACE=1` for a backtrace.
@ghost
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ghost commented Jul 21, 2017

Is there anything interesting about this in config.log ?

@aep
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aep commented Jul 21, 2017 •
edited
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hmm, where is config.log?

aep@stark: ~/kram/backtrace-rs find . -name config.log
aep@stark: ~/kram/backtrace-rs

the fix appears to be

export CC=/home/aep/android/build/android-18-toolchain/bin/arm-linux-androideabi-clang
cargo rustc  --target arm-linux-androideabi    --   -C linker=/home/aep/android/build/android-18-toolchain/bin/arm-linux-androideabi-clang

not sure what you could do about that. just using the linker as CC by default seems like a bad idea, since people could specify a linker that can't compile (ld)

@alexcrichton
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Hm seems odd that config.log doesn't exist! That'd have more error information as to what's going on here. In theory it shoudl be located at /home/aep/kram/backtrace-rs/target/arm-linux-androideabi/debug/build/backtrace-sys-e9614a5f38c40b50/out, but it's not there?

@aep
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aep commented Jul 22, 2017

i must have broken something earlier, sorry. config.log is there now

This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by package-unused configure version-unused, which was
generated by GNU Autoconf 2.64.  Invocation command line was

  $ /home/aep/kram/backtrace-rs/backtrace-sys/src/libbacktrace/configure --with-pic --disable-multilib --disable-shared --disable-host-shared --host=arm-linux-androideabi --build=x86_64-unknown-linux-gnu

## --------- ##
## Platform. ##
## --------- ##

hostname = stark
uname -m = x86_64
uname -r = 4.11.9-1-ARCH
uname -s = Linux
uname -v = #1 SMP PREEMPT Wed Jul 5 18:23:08 CEST 2017

/usr/bin/uname -p = unknown
/bin/uname -X     = unknown

/bin/arch              = unknown
/usr/bin/arch -k       = unknown
/usr/convex/getsysinfo = unknown
/usr/bin/hostinfo      = unknown
/bin/machine           = unknown
/usr/bin/oslevel       = unknown
/bin/universe          = unknown

PATH: /home/aep/.cargo/bin
PATH: /home/aep/.rbenv/shims
PATH: /home/aep/.rbenv/bin/
PATH: /proj/nordic/JLink_Linux_V488a_x86_64/
PATH: /opt/android-sdk/platform-tools/
PATH: /home/aep/bin
PATH: /usr/lib/ccache/bin/
PATH: /usr/lib/colorgcc/bin
PATH: /usr/local/bin
PATH: /usr/sbin/
PATH: /sbin
PATH: /usr/local/sbin
PATH: /usr/local/bin
PATH: /usr/bin
PATH: /opt/android-sdk/tools
PATH: /opt/cuda/bin
PATH: /usr/lib/jvm/default/bin
PATH: /usr/bin/site_perl
PATH: /usr/bin/vendor_perl
PATH: /usr/bin/core_perl
PATH: /opt/android-sdk/tools


## ----------- ##
## Core tests. ##
## ----------- ##

configure:2524: checking build system type
configure:2538: result: x86_64-unknown-linux-gnu
configure:2558: checking host system type
configure:2571: result: arm-unknown-linux-androideabi
configure:2591: checking target system type
configure:2604: result: arm-unknown-linux-androideabi
configure:2641: checking for arm-linux-androideabi-gcc
configure:2668: result: arm-linux-androideabi-gcc
configure:2937: checking for C compiler version
configure:2946: arm-linux-androideabi-gcc --version >&5
/home/aep/kram/backtrace-rs/backtrace-sys/src/libbacktrace/configure: line 2948: arm-linux-androideabi-gcc: command not found
configure:2957: $? = 127
configure:2946: arm-linux-androideabi-gcc -v >&5
/home/aep/kram/backtrace-rs/backtrace-sys/src/libbacktrace/configure: line 2948: arm-linux-androideabi-gcc: command not found
configure:2957: $? = 127
configure:2946: arm-linux-androideabi-gcc -V >&5
/home/aep/kram/backtrace-rs/backtrace-sys/src/libbacktrace/configure: line 2948: arm-linux-androideabi-gcc: command not found
configure:2957: $? = 127
configure:2946: arm-linux-androideabi-gcc -qversion >&5
/home/aep/kram/backtrace-rs/backtrace-sys/src/libbacktrace/configure: line 2948: arm-linux-androideabi-gcc: command not found
configure:2957: $? = 127
configure:2977: checking for C compiler default output file name
configure:2999: arm-linux-androideabi-gcc -O0 -ffunction-sections -fdata-sections -fPIC -g   conftest.c  >&5
/home/aep/kram/backtrace-rs/backtrace-sys/src/libbacktrace/configure: line 3001: arm-linux-androideabi-gcc: command not found
configure:3003: $? = 127
configure:3040: result: 
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "package-unused"
| #define PACKAGE_TARNAME "libbacktrace"
| #define PACKAGE_VERSION "version-unused"
| #define PACKAGE_STRING "package-unused version-unused"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| /* end confdefs.h.  */
| 
| int
| main ()
| {
| 
|   ;
|   return 0;
| }
configure:3046: error: in `/home/aep/kram/backtrace-rs/target/arm-linux-androideabi/debug/build/backtrace-sys-e9614a5f38c40b50/out':
configure:3050: error: C compiler cannot create executables
See `config.log' for more details.

## ---------------- ##
## Cache variables. ##
## ---------------- ##

ac_cv_build=x86_64-unknown-linux-gnu
ac_cv_env_CC_set=set
ac_cv_env_CC_value=arm-linux-androideabi-gcc
ac_cv_env_CFLAGS_set=set
ac_cv_env_CFLAGS_value='-O0 -ffunction-sections -fdata-sections -fPIC -g'
ac_cv_env_CPPFLAGS_set=
ac_cv_env_CPPFLAGS_value=
ac_cv_env_CPP_set=
ac_cv_env_CPP_value=
ac_cv_env_LDFLAGS_set=
ac_cv_env_LDFLAGS_value=
ac_cv_env_LIBS_set=
ac_cv_env_LIBS_value=
ac_cv_env_build_alias_set=set
ac_cv_env_build_alias_value=x86_64-unknown-linux-gnu
ac_cv_env_host_alias_set=set
ac_cv_env_host_alias_value=arm-linux-androideabi
ac_cv_env_target_alias_set=
ac_cv_env_target_alias_value=
ac_cv_host=arm-unknown-linux-androideabi
ac_cv_prog_CC=arm-linux-androideabi-gcc
ac_cv_target=arm-unknown-linux-androideabi

## ----------------- ##
## Output variables. ##
## ----------------- ##

ACLOCAL=''
ALLOC_FILE=''
AMTAR=''
AR='ar'
AUTOCONF=''
AUTOHEADER=''
AUTOMAKE=''
AWK=''
BACKTRACE_FILE=''
BACKTRACE_SUPPORTED=''
BACKTRACE_SUPPORTS_DATA=''
BACKTRACE_SUPPORTS_THREADS=''
BACKTRACE_USES_MALLOC=''
CC='arm-linux-androideabi-gcc'
CFLAGS='-O0 -ffunction-sections -fdata-sections -fPIC -g'
CPP=''
CPPFLAGS=''
CYGPATH_W=''
DEFS=''
DSYMUTIL=''
DUMPBIN=''
ECHO_C=''
ECHO_N='-n'
ECHO_T=''
EGREP=''
EXEEXT=''
EXTRA_FLAGS=''
FGREP=''
FORMAT_FILE=''
GREP=''
INSTALL_DATA=''
INSTALL_PROGRAM=''
INSTALL_SCRIPT=''
INSTALL_STRIP_PROGRAM=''
LD=''
LDFLAGS=''
LIBOBJS=''
LIBS=''
LIBTOOL=''
LIPO=''
LN_S=''
LTLIBOBJS=''
MAINT=''
MAINTAINER_MODE_FALSE=''
MAINTAINER_MODE_TRUE=''
MAKEINFO=''
MKDIR_P=''
NATIVE_FALSE=''
NATIVE_TRUE=''
NM=''
NMEDIT=''
OBJDUMP=''
OBJEXT=''
OTOOL64=''
OTOOL=''
PACKAGE=''
PACKAGE_BUGREPORT=''
PACKAGE_NAME='package-unused'
PACKAGE_STRING='package-unused version-unused'
PACKAGE_TARNAME='libbacktrace'
PACKAGE_URL=''
PACKAGE_VERSION='version-unused'
PATH_SEPARATOR=':'
PIC_FLAG=''
RANLIB=''
SED=''
SET_MAKE=''
SHELL='/bin/sh'
STRIP=''
VERSION=''
VIEW_FILE=''
WARN_FLAGS=''
ac_ct_CC=''
ac_ct_DUMPBIN=''
am__EXEEXT_FALSE=''
am__EXEEXT_TRUE=''
am__isrc=''
am__leading_dot=''
am__tar=''
am__untar=''
bindir='${exec_prefix}/bin'
build='x86_64-unknown-linux-gnu'
build_alias='x86_64-unknown-linux-gnu'
build_cpu='x86_64'
build_os='linux-gnu'
build_vendor='unknown'
datadir='${datarootdir}'
datarootdir='${prefix}/share'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
dvidir='${docdir}'
exec_prefix='NONE'
host='arm-unknown-linux-androideabi'
host_alias='arm-linux-androideabi'
host_cpu='arm'
host_os='linux-androideabi'
host_vendor='unknown'
htmldir='${docdir}'
includedir='${prefix}/include'
infodir='${datarootdir}/info'
install_sh=''
libdir='${exec_prefix}/lib'
libexecdir='${exec_prefix}/libexec'
libtool_VERSION=''
localedir='${datarootdir}/locale'
localstatedir='${prefix}/var'
mandir='${datarootdir}/man'
mkdir_p=''
multi_basedir=''
oldincludedir='/usr/include'
pdfdir='${docdir}'
prefix='NONE'
program_transform_name='s,x,x,'
psdir='${docdir}'
sbindir='${exec_prefix}/sbin'
sharedstatedir='${prefix}/com'
sysconfdir='${prefix}/etc'
target='arm-unknown-linux-androideabi'
target_alias='arm-linux-androideabi'
target_cpu='arm'
target_os='linux-androideabi'
target_vendor='unknown'

## ----------- ##
## confdefs.h. ##
## ----------- ##

/* confdefs.h */
#define PACKAGE_NAME "package-unused"
#define PACKAGE_TARNAME "libbacktrace"
#define PACKAGE_VERSION "version-unused"
#define PACKAGE_STRING "package-unused version-unused"
#define PACKAGE_BUGREPORT ""
#define PACKAGE_URL ""

configure: exit 77

@aep
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aep commented Jul 22, 2017

From the log it's also obvious that it's trying arm-linux-androideabi-gcc from PATH, which is actually standard.
I'll close this because i don't think there's a sane way to guess the absolute path.

@aep aep closed this as completed Jul 22, 2017
@alexcrichton
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@aep ok thanks for the logs! I wonder if this is a bug in the gcc crate? It's attempting to detect the right compiler and it's concluding arm-linux-androideabi-gcc which doesn't exist while arm-linux-androideabi-clang does exist?

@dbrgn
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dbrgn commented Sep 25, 2017 •
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I have the same problem here. I set the path to the NDK binaries in ~/.cargo/config:

[target.armv7-linux-androideabi]
ar = "/path/to/NDK/arm/bin/arm-linux-androideabi-ar"
linker = "/path/to/NDK/arm/bin/arm-linux-androideabi-clang"

...but that path is not picked up. Using export CC=/path/to/NDK/arm/bin/arm-linux-androideabi-clang seems to help.

Shouldn't that be picked up automatically?

@alexcrichton
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@dbrgn I think that's covered by rust-lang/cc-rs#82

@NanoMichael
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It seems you didn't set the option --host correctly, try --host=<the host system>

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@alexcrichton @dbrgn @aep @NanoMichael