我正在尝试为 Android 构建 Kona 并且遇到了一些问题。我为 Kona 制作的补丁可用 here 。
一方面，我试图避免使用 ndk-build，因此编辑了 makefile 以支持 Android。这些细节对这个问题(或有趣)并不是特别有用，所以我会跳过它们。
基本上，源文件是这样编译的:
arm-linux-androideabi-clang -g -fpic -ffunction-sections -funwind-tables -fstack-protector -no-canonical-prefixes -mtune=xscale -msoft-float -mthumb -fomit-frame-pointer -fno-strict-aliasing -O3 -c -o src/ks.o src/ks.c
...
arm-linux-androideabi-clang -g -fpic -ffunction-sections -funwind-tables -fstack-protector -no-canonical-prefixes -mtune=xscale -msoft-float -mthumb -fomit-frame-pointer -fno-strict-aliasing -O3 src/0.o src/c.o src/getline.o src/getline_android.o src/mt.o src/p.o src/r.o src/k.o src/kc.o src/kx.o src/kg.o src/km.o src/kn.o src/ko.o src/ks.o src/v.o src/va.o src/vc.o src/vd.o src/vf.o src/vg.o src/vq.o src/main.o -o k -Wl,--gc-sections -Wl,-z,nocopyreloc -lgcc -no-canonical-prefixes -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -mthumb -lc -lm -ldl
我根据我看到的
ndk-build 使用的内容建立了这些标志。然后我运行了以下命令:ryan@DevPC-LX:~/stuff/kdroid$ adb remount
remount succeeded
ryan@DevPC-LX:~/stuff/kdroid$ adb push ./k /system/bin/k
3201 KB/s (724928 bytes in 0.221s)
ryan@DevPC-LX:~/stuff/kdroid$
现在，尝试运行二进制文件只是段错误:
ryan@DevPC-LX:~/stuff/kdroid$ adb shell
# k
[1] + Stopped (signal) k
#
[1] Segmentation fault k
#
这就是开始变得奇怪的地方。如果我尝试使用 gdb，我会得到这个:
ryan@DevPC-LX:~/stuff/kdroid$ adb shell
# gdbserver :5039 /system/bin/k
Process /system/bin/k created; pid = 297
Listening on port 5039
在另一个 shell 窗口中:
ryan@DevPC-LX:~/stuff/kdroid$ arm-linux-androideabi-gdb
GNU gdb (GDB) 7.6
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "--host=x86_64-linux-gnu --target=arm-linux-android".
For bug reporting instructions, please see:
<http://source.android.com/source/report-bugs.html>.
/home/ryan/.gdbinit:1: Error in sourced command file:
No symbol table is loaded. Use the "file" command.
(gdb) symbol-file k
Reading symbols from /media/ryan/stuff/kdroid/k...done.
(gdb) target remote :5039
Remote debugging using :5039
0xb0001000 in ?? ()
(gdb) continue
Continuing.
Cannot access memory at address 0x0
Program received signal SIGSEGV, Segmentation fault.
0xb0004d36 in ?? ()
(gdb) bt
#0 0xb0004d36 in ?? ()
#1 0xb0005278 in ?? ()
#2 0xb0005278 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb)
ndk-stack 给了我这个:
********** Crash dump: **********
Build fingerprint: 'generic/sdk/generic:2.3.3/GRI34/101070:eng/test-keys'
pid: 297, tid: 297 >>> /system/bin/k <<<
signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0003cabc
Stack frame #00 pc b0004d36 /system/bin/linker: Unable to open symbol file k/linker. Error (20): Not a directory
所以...链接器似乎崩溃了。如果我将
/system/bin/linker 拉入当前目录，则会得到以下信息:********** Crash dump: **********
Build fingerprint: 'generic/sdk/generic:2.3.3/GRI34/101070:eng/test-keys'
pid: 291, tid: 291 >>> k <<<
signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0003cabc
Stack frame #00 pc b0004d36 /system/bin/linker: Routine BFD: ./linker: warning: sh_link not set for section `.ARM.exidx'
??
??:0
Crash dump is completed
这一切都非常令人困惑。
在这一点上，我完全不知道到底出了什么问题。我的意思是，我觉得我的编译器命令有问题，但我不知道是什么。
编辑: 我的编译器命令肯定有问题。如果我构建这个程序:
int main() { return 0; }
使用
ndk-build 和我之前发布的命令行标志，构建的版本没有 ndk-build 段错误。 最佳答案
弄清楚了!是叮当!出于某种原因，它导致了段错误。我仍然不知道为什么......但问题仍然基本解决。