在Android中使用Runtime.getRuntime（）執行交叉編譯的程序

Question

Android開發人員新手在這裏。我正在嘗試在Android中開發一個GUI包裝器，用於從Android外殼（使用「adb外殼」）運行的小型交叉編譯應用程序。該應用程序執行一些加密操作並需要gmp和libpaillier庫。應用程序按照預期從Android外殼執行時運行。但是，當嘗試使用Runtime.getRuntime（）。exec（「cmd」）對象從Android應用程序層（Android Activity）執行它時，出現如下所示的分段錯誤錯誤。只有在使用加密操作時纔會發生（例如，只顯示命令行參數選項時它可以正常工作）。我會很感激任何可以幫助我解決這個問題的建議。謝謝。

07-26 14:58:12.633: INFO/DEBUG(10175): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 
07-26 14:58:12.633: INFO/DEBUG(10175): Build fingerprint: 'google/soju/crespo:2.3.4/GRJ22/121341:user/release-keys' 
07-26 14:58:12.633: INFO/DEBUG(10175): pid: 12281, tid: 12281 >>> /data/test/mptest <<< 
07-26 14:58:12.633: INFO/DEBUG(10175): signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0000000c 
07-26 14:58:12.633: INFO/DEBUG(10175): r0 00000000 r1 00021180 r2 ffffff1c r3 3fbae818 
07-26 14:58:12.633: INFO/DEBUG(10175): r4 afd41504 r5 bec40ad8 r6 80000000 r7 3fbae818 
07-26 14:58:12.633: INFO/DEBUG(10175): r8 00000000 r9 00000000 10 00000000 fp bec40c84 
07-26 14:58:12.633: INFO/DEBUG(10175): ip 00024188 sp bec40840 lr afd18821 pc afd1a894 cpsr a0000030 
07-26 14:58:12.633: INFO/DEBUG(10175): d0 afd46484afd46410 d1 6f427362b606cc00 
07-26 14:58:12.633: INFO/DEBUG(10175): d2 0000000000000000 d3 0000000000000000 
07-26 14:58:12.633: INFO/DEBUG(10175): d4 0000000000000000 d5 0000000000000000 
07-26 14:58:12.633: INFO/DEBUG(10175): d6 0000000000000000 d7 0000000000000000 
07-26 14:58:12.633: INFO/DEBUG(10175): d8 0000000000000000 d9 0000000000000000 
07-26 14:58:12.633: INFO/DEBUG(10175): d10 0000000000000000 d11 0000000000000000 
07-26 14:58:12.633: INFO/DEBUG(10175): d12 0000000000000000 d13 0000000000000000 
07-26 14:58:12.633: INFO/DEBUG(10175): d14 0000000000000000 d15 0000000000000000 
07-26 14:58:12.633: INFO/DEBUG(10175): d16 0000000000000000 d17 0000000000000000 
07-26 14:58:12.633: INFO/DEBUG(10175): d18 0000000000000000 d19 0000000000000000 
07-26 14:58:12.633: INFO/DEBUG(10175): d20 0000000000000000 d21 0000000000000000 
07-26 14:58:12.633: INFO/DEBUG(10175): d22 0000000000000000 d23 0000000000000000 
07-26 14:58:12.633: INFO/DEBUG(10175): d24 0000000000000000 d25 0000000000000000 
07-26 14:58:12.633: INFO/DEBUG(10175): d26 0000000000000000 d27 0000000000000000 
07-26 14:58:12.633: INFO/DEBUG(10175): d28 0000000000000000 d29 0000000000000000 
07-26 14:58:12.633: INFO/DEBUG(10175): d30 0000000000000000 d31 0000000000000000 
07-26 14:58:12.633: INFO/DEBUG(10175): scr 00000000 
07-26 14:58:12.645: INFO/DEBUG(10175):   #00 pc 0001a894 /system/lib/libc.so 
07-26 14:58:12.649: INFO/DEBUG(10175):   #01 lr afd18821 /system/lib/libc.so 
07-26 14:58:12.649: INFO/DEBUG(10175): code around pc: 
07-26 14:58:12.649: INFO/DEBUG(10175): afd1a874 00000000 4ff0e92d 8b02ed2d f5ad4db5 
07-26 14:58:12.649: INFO/DEBUG(10175): afd1a884 46807d17 950f447d 9c0f4615 910e4ab2 
07-26 14:58:12.649: INFO/DEBUG(10175): afd1a894 300cf8b8 462c58a1 6808071a d5029095 
07-26 14:58:12.649: INFO/DEBUG(10175): afd1a8a4 3010f8d8 4640b963 ffb4f001 f7f7b140 
07-26 14:58:12.649: INFO/DEBUG(10175): afd1a8b4 2109fae7 f04f6001 900c30ff b9baf001 
07-26 14:58:12.649: INFO/DEBUG(10175): code around lr: 
07-26 14:58:12.649: INFO/DEBUG(10175): afd18800 ffffff70 ffffff6c ffffff74 ffffff78 
07-26 14:58:12.649: INFO/DEBUG(10175): afd18810 b503b40e f852aa03 92011b04 f82cf002 
07-26 14:58:12.649: INFO/DEBUG(10175): afd18820 400ce8bd 4770b003 300cf9b0 4604b510 
07-26 14:58:12.649: INFO/DEBUG(10175): afd18830 f7f9b933 2109fb27 f04f6001 e01530ff 
07-26 14:58:12.649: INFO/DEBUG(10175): afd18840 68106b02 f104b140 45600c40 f7fbd001 
07-26 14:58:12.652: INFO/DEBUG(10175): stack: 
07-26 14:58:12.652: INFO/DEBUG(10175):  bec40800 00000020 
07-26 14:58:12.652: INFO/DEBUG(10175):  bec40804 00024224 /data/test/mptest 
07-26 14:58:12.652: INFO/DEBUG(10175):  bec40808 00000010 
07-26 14:58:12.652: INFO/DEBUG(10175):  bec4080c 00000020 
07-26 14:58:12.652: INFO/DEBUG(10175):  bec40810 00024224 /data/test/mptest 
07-26 14:58:12.652: INFO/DEBUG(10175):  bec40814 00000010 
07-26 14:58:12.656: INFO/DEBUG(10175):  bec40818 00000010 
07-26 14:58:12.656: INFO/DEBUG(10175):  bec4081c b0009468 /system/bin/linker 
07-26 14:58:12.656: INFO/DEBUG(10175):  bec40820 ffffffff 
07-26 14:58:12.656: INFO/DEBUG(10175):  bec40824 00000000 
07-26 14:58:12.656: INFO/DEBUG(10175):  bec40828 6b6505b0 
07-26 14:58:12.656: INFO/DEBUG(10175):  bec4082c e69d3d64 
07-26 14:58:12.656: INFO/DEBUG(10175):  bec40830 cfcaab85 
07-26 14:58:12.656: INFO/DEBUG(10175):  bec40834 520fb67e 
07-26 14:58:12.656: INFO/DEBUG(10175):  bec40838 df002777 
07-26 14:58:12.660: INFO/DEBUG(10175):  bec4083c e3a070ad 
07-26 14:58:12.660: INFO/DEBUG(10175): #00 bec40840 69d2c15d 
07-26 14:58:12.660: INFO/DEBUG(10175):  bec40844 77929325 
07-26 14:58:12.660: INFO/DEBUG(10175):  bec40848 feb7d8da 
07-26 14:58:12.660: INFO/DEBUG(10175):  bec4084c 686a93ac 
07-26 14:58:12.660: INFO/DEBUG(10175):  bec40850 354e5ebd 
07-26 14:58:12.660: INFO/DEBUG(10175):  bec40854 84a276b3 
07-26 14:58:12.664: INFO/DEBUG(10175):  bec40858 56777d01 
07-26 14:58:12.664: INFO/DEBUG(10175):  bec4085c 43d437cf 
07-26 14:58:12.664: INFO/DEBUG(10175):  bec40860 c678f383 
07-26 14:58:12.664: INFO/DEBUG(10175):  bec40864 2d2f7b98 
07-26 14:58:12.664: INFO/DEBUG(10175):  bec40868 45a2a873 
07-26 14:58:12.664: INFO/DEBUG(10175):  bec4086c d1230fb5 
07-26 14:58:12.664: INFO/DEBUG(10175):  bec40870 11ea3141 
07-26 14:58:12.668: INFO/DEBUG(10175):  bec40874 30b0ae58 
07-26 14:58:12.668: INFO/DEBUG(10175):  bec40878 00021180 /data/test/mptest 
07-26 14:58:12.668: INFO/DEBUG(10175):  bec4087c afd41504 /system/lib/libc.so 
07-26 14:58:12.668: INFO/DEBUG(10175):  bec40880 000001c4 
07-26 14:58:12.668: INFO/DEBUG(10175):  bec40884 00000001 
07-26 14:58:15.652: DEBUG/dalvikvm(7064): GC_EXPLICIT freed 168K, 30% free 7359K/10439K, external 5458K/6546K, paused 87ms 
07-26 14:58:21.613: DEBUG/dalvikvm(12270): Calling exit(1) 
07-26 14:58:21.660: INFO/ActivityManager(106): Process com.android.emoc (pid 12270) has died. 
07-26 14:58:21.664: INFO/WindowManager(106): WIN DEATH: Window{4058db50 com.android.emoc/com.android.emoc.EmocActivity paused=false} 

Answer 1

首先，我會建議使用NDK，除非這是一個巨大的不便。它會讓事情變得更容易。 （請記住，不久將會有基於英特爾的Android設備，因此您可能想要讓它更容易支持多種體系結構）。

既然你能夠運行可執行文件本身，我會建議用printf語句來抹去它，直到你通過分而治之縮小它的出錯點。如果你正在進行文件訪問，你的進程可能沒有權限訪問它？