Rust 交叉编译到 armv5te 时，整数格式不正确

在我的计算机上编译以下程序时，它会输出预期值:

fn main() {
    let number = 42;
    println!("number is {}", number);
}

号码是42

当为armv5te交叉编译并在目标上运行时，它会输出以下结果:

号码是14

我认为Display换i32的实施并没有如预期的那样奏效.特别是，似乎打印的字符在以下数组(在libcore/fmt/num.rs中找到)中的索引错误:

const DEC_DIGITS_LUT: &'static[u8] =
    b"0001020304050607080910111213141516171819\
      2021222324252627282930313233343536373839\
      4041424344454647484950515253545556575859\
      6061626364656667686970717273747576777879\
      8081828384858687888990919293949596979899";

The two digits displayed are taken on the table at an offset of 1 byte to the left compared with the right place. I verified this hypothesis by testing with some other numbers (10 -> 91, 11 -> 01 for instance).

其他格式({:b}、{:o}、{:x})都给出了我的计算机和目标上的预期结果.

我正在使用Rust的自编版本(1.13.0，2c6933acc 2016-11-07)在我的计算机上进行成功的测试，在我的ARM设备上进行失败的测试.以下是我不得不做的修改的区别:

diff --git a/mk/cfg/arm-unknown-linux-gnueabi.mk b/mk/cfg/arm-unknown-linux-gnueabi.mk
index f66ad04..b9e4157 100644
--- a/mk/cfg/arm-unknown-linux-gnueabi.mk
+++ b/mk/cfg/arm-unknown-linux-gnueabi.mk
@@ -1,5 +1,5 @@
 # arm-unknown-linux-gnueabi configuration
-CROSS_PREFIX_arm-unknown-linux-gnueabi=arm-linux-gnueabi-
+CROSS_PREFIX_arm-unknown-linux-gnueabi=arm-unknown-linux-uclibcgnueabi-
 CC_arm-unknown-linux-gnueabi=gcc
 CXX_arm-unknown-linux-gnueabi=g++
 CPP_arm-unknown-linux-gnueabi=gcc -E
@@ -8,8 +8,8 @@ CFG_LIB_NAME_arm-unknown-linux-gnueabi=lib$(1).so
 CFG_STATIC_LIB_NAME_arm-unknown-linux-gnueabi=lib$(1).a
 CFG_LIB_GLOB_arm-unknown-linux-gnueabi=lib$(1)-*.so
 CFG_LIB_DSYM_GLOB_arm-unknown-linux-gnueabi=lib$(1)-*.dylib.dSYM
-CFG_JEMALLOC_CFLAGS_arm-unknown-linux-gnueabi := -Darm -mfloat-abi=soft $(CFLAGS) -march=armv6 -marm
-CFG_GCCISH_CFLAGS_arm-unknown-linux-gnueabi := -Wall -g -fPIC -Darm -mfloat-abi=soft $(CFLAGS) -march=armv6 -marm
+CFG_JEMALLOC_CFLAGS_arm-unknown-linux-gnueabi := -Darm -mfloat-abi=soft $(CFLAGS) -fno-stack-protector -march=armv5te -mtune=arm926ej-s
+CFG_GCCISH_CFLAGS_arm-unknown-linux-gnueabi := -Wall -g -fPIC -Darm -mfloat-abi=soft $(CFLAGS) -fno-stack-protector -march=armv5te -mtune=arm926ej-s
 CFG_GCCISH_CXXFLAGS_arm-unknown-linux-gnueabi := -fno-rtti $(CXXFLAGS)
 CFG_GCCISH_LINK_FLAGS_arm-unknown-linux-gnueabi := -shared -fPIC -g
 CFG_GCCISH_DEF_FLAG_arm-unknown-linux-gnueabi := -Wl,--export-dynamic,--dynamic-list=
diff --git a/src/librustc_back/target/arm_unknown_linux_gnueabi.rs b/src/librustc_back/target/arm_unknown_linux_gnueabi.rs
index e666a84..8af2596 100644
--- a/src/librustc_back/target/arm_unknown_linux_gnueabi.rs
+++ b/src/librustc_back/target/arm_unknown_linux_gnueabi.rs
@@ -24,7 +24,7 @@ pub fn target() -> TargetResult {
 target_vendor: "unknown".to_string(),

 options: TargetOptions {
-            features: "+v6".to_string(),
+            features: "+v5te".to_string(),
 .. base
 },
 })