我在Debian机器上,我想为我的Raspberry Pi 2交叉编译一个项目 . 我已经设法用一个简单的hello世界使用rustup,但无法弄清楚如何交叉编译rust-openssl crate .
我用arm-linux-gnueabihf-gcc编译了openssl并将其安装在我的 home/opensslArm
目录中 .
我跑的时候
OPENSSL_LIB_DIR=/home/johann/opensslArm/lib OPENSSL_INCLUDE_DIR=/home/johann/opensslArm/include cargo build --target=armv7-unknown-linux-gnueabihf
我收到此错误:
failed to run custom build command for `openssl-sys-extras v0.7.11`
Process didn't exit successfully: `/home/johann/projects/test/target/debug/build/openssl-sys-extras-e1c84960cd35bc93/build-script-build` (exit code: 101)
--- stdout
TARGET = Some("armv7-unknown-linux-gnueabihf")
OPT_LEVEL = Some("0")
PROFILE = Some("debug")
TARGET = Some("armv7-unknown-linux-gnueabihf")
debug=true opt-level=0
HOST = Some("x86_64-unknown-linux-gnu")
TARGET = Some("armv7-unknown-linux-gnueabihf")
TARGET = Some("armv7-unknown-linux-gnueabihf")
HOST = Some("x86_64-unknown-linux-gnu")
CC_armv7-unknown-linux-gnueabihf = None
CC_armv7_unknown_linux_gnueabihf = None
TARGET_CC = None
CC = None
HOST = Some("x86_64-unknown-linux-gnu")
TARGET = Some("armv7-unknown-linux-gnueabihf")
HOST = Some("x86_64-unknown-linux-gnu")
CFLAGS_armv7-unknown-linux-gnueabihf = None
CFLAGS_armv7_unknown_linux_gnueabihf = None
TARGET_CFLAGS = None
CFLAGS = None
running: "arm-linux-gnueabihf-gcc" "-O0" "-ffunction-sections" "-fdata-sections" "-g" "-fPIC" "-march=armv7-a" "-o" "/home/johann/projects/test/target/armv7-unknown-linux-gnueabihf/debug/build/openssl-sys-extras-e1c84960cd35bc93/out/src/openssl_shim.o" "-c" "src/openssl_shim.c"
ExitStatus(ExitStatus(256))
command did not execute successfully, got: exit code: 1
--- stderr
In file included from src/openssl_shim.c:1:0:
/usr/include/openssl/hmac.h:61:34: fatal error: openssl/opensslconf.h: No such file or directory
compilation terminated.
thread '<main>' panicked at 'explicit panic', /home/johann/.cargo/registry/src/github.com-88ac128001ac3a9a/gcc-0.3.28/src/lib.rs:840
note: Run with `RUST_BACKTRACE=1` for a backtrace.
如果我导出有问题的变量,我会得到相同的错误 .
我不知道我应该做什么,我不是交叉编译的专家 . 有没有人设法做到这一点?
编辑:我使用的是rust-openssl 0.7.11 . 升级到0.7.13修复了这个问题(我现在可以看到货物编译rust-openssl依赖而没有错误)但我现在又有另一个:
error: linking with `arm-linux-gnueabihf-gcc` failed: exit code: 1
...
note: /usr/lib/gcc-cross/arm-linux-gnueabihf/5/../../../../arm-linux-gnueabihf/bin/ld: /home/johann/opensslArm/lib/libssl.a(s23_meth.o): relocation R_ARM_THM_MOVW_ABS_NC against `a local symbol' can not be used when making a shared object; recompile with -fPIC
/home/johann/opensslArm/lib/libssl.a: error adding symbols: Bad value
如何添加 -fPIC
标志?我应该使用特定标志重新编译opensslArm吗?
1 回答
配置openssl编译时必须传递
shared
选项(这将使-fPIC
参数传递给编译器) .这是一系列命令,我用它来测试交叉编译打印openssl版本的Rust程序:
Testing the compiled program on the host computer
Setting
OPENSSL_STATIC
使rust-openssl
静态链接 . 如果使用rust-openssl
的静态链接版本,为armhf(crossbuild-essential-armhf
on Debian)和qemu-static
安装libc,则可以使用以下命令运行已编译的程序: