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POgcc on rooted android 4.1.2
 

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  1. POgcc on rooted android 4.1.2
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    <p>I downloaded</p> <p><a href="https://www.dropbox.com/s/uammywfed6d2rgj/android_gcc_r2a.tar.bz2" rel="nofollow">https://www.dropbox.com/s/uammywfed6d2rgj/android_gcc_r2a.tar.bz2</a></p> <p>and</p> <p><a href="https://www.dropbox.com/s/uammywfed6d2rgj/android_gcc_supplement.tar.bz2" rel="nofollow">https://www.dropbox.com/s/uammywfed6d2rgj/android_gcc_supplement.tar.bz2</a></p> <p>from</p> <p><a href="http://rwiki.sciviews.org/doku.php?id=getting-started:installation:android" rel="nofollow">http://rwiki.sciviews.org/doku.php?id=getting-started:installation:android</a></p> <p>and created /data/local/gcc in /data, put the two previous files in it and expended them.</p> <p>Then I modified the file /system/etc/mkshrc for making it doing this :</p> <p>export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/data/local/gcc/lib export PATH=$PATH:/data/local/gcc/bin</p> <p>as advised. Then I created a test1.c file</p> <pre><code>#include &lt;stdio.h&gt; int main() { printf("Hello") return 0; } </code></pre> <p>and compiled it with the command</p> <pre><code>gcc test1.c -o test1 </code></pre> <p>and then executed the command</p> <pre><code>./test1 </code></pre> <p>with result :</p> <p>"can't execute: Permission denied". A ls -l on test1 gives to me -rw-rw-r-- root (because I have created it as root ; but I did all not being root as well with the same "Permission denied" result). Then I tried a chmod for making it executable, without any success. Do you have any idea ?</p> <p>Thx a lot <hr/> <strong>EDIT</strong></p> <pre><code>Symbol table '.symtab' contains 55 entries: Num: Value Size Type Bind Vis Ndx Name 0: 00000000 0 NOTYPE LOCAL DEFAULT UND 1: 000080f4 0 SECTION LOCAL DEFAULT 1 2: 00008108 0 SECTION LOCAL DEFAULT 2 3: 00008158 0 SECTION LOCAL DEFAULT 3 4: 00008248 0 SECTION LOCAL DEFAULT 4 5: 000082e8 0 SECTION LOCAL DEFAULT 5 6: 000082f8 0 SECTION LOCAL DEFAULT 6 7: 00008330 0 SECTION LOCAL DEFAULT 7 8: 00008388 0 SECTION LOCAL DEFAULT 8 9: 00010398 0 SECTION LOCAL DEFAULT 9 10: 000103a0 0 SECTION LOCAL DEFAULT 10 11: 000103a8 0 SECTION LOCAL DEFAULT 11 12: 000103b0 0 SECTION LOCAL DEFAULT 12 13: 000103b8 0 SECTION LOCAL DEFAULT 13 14: 00010478 0 SECTION LOCAL DEFAULT 14 15: 00000000 0 SECTION LOCAL DEFAULT 15 16: 00000000 0 SECTION LOCAL DEFAULT 16 17: 00000000 0 FILE LOCAL DEFAULT ABS bionic/libc/arch-arm/bion 18: 00000000 0 FILE LOCAL DEFAULT ABS test1.c 19: 00008388 0 NOTYPE LOCAL DEFAULT 8 $d 20: 00008360 0 NOTYPE LOCAL DEFAULT 7 $a 21: 00008384 0 NOTYPE LOCAL DEFAULT 7 $d 22: 00000000 0 FILE LOCAL DEFAULT ABS bionic/libc/arch-arm/bion 23: 00008398 0 NOTYPE LOCAL DEFAULT ABS __exidx_end 24: 000103b8 0 OBJECT LOCAL DEFAULT 13 _DYNAMIC 25: 00008398 0 NOTYPE LOCAL DEFAULT ABS __exidx_start 26: 00010478 0 OBJECT LOCAL DEFAULT 14 _GLOBAL_OFFSET_TABLE_ 27: 00008330 0 NOTYPE LOCAL DEFAULT 7 $d 28: 00010398 0 NOTYPE LOCAL DEFAULT 9 $d 29: 000103a0 0 NOTYPE LOCAL DEFAULT 10 $d 30: 000103a8 0 NOTYPE LOCAL DEFAULT 11 $d 31: 000103b0 0 NOTYPE LOCAL DEFAULT 12 $d 32: 0001039c 0 NOTYPE LOCAL DEFAULT 9 $d 33: 000103a4 0 NOTYPE LOCAL DEFAULT 10 $d 34: 000103ac 0 NOTYPE LOCAL DEFAULT 11 $d 35: 000103b4 0 NOTYPE LOCAL DEFAULT 12 $d 36: 000082f8 0 NOTYPE LOCAL DEFAULT 6 $a 37: 00008308 0 NOTYPE LOCAL DEFAULT 6 $d 38: 0000830c 0 NOTYPE LOCAL DEFAULT 6 $a 39: 0001048c 0 NOTYPE GLOBAL DEFAULT ABS _bss_end__ 40: 0000830c 0 FUNC GLOBAL DEFAULT UND puts 41: 000103a8 0 NOTYPE GLOBAL DEFAULT 11 __FINI_ARRAY__ 42: 0001048c 0 NOTYPE GLOBAL DEFAULT ABS __bss_start__ 43: 00008318 0 FUNC GLOBAL DEFAULT UND __libc_init 44: 000103b0 0 NOTYPE GLOBAL DEFAULT 12 __CTOR_LIST__ 45: 0001048c 0 NOTYPE GLOBAL DEFAULT ABS __bss_end__ 46: 00008330 0 FUNC GLOBAL DEFAULT 7 _start 47: 000103a0 0 NOTYPE GLOBAL DEFAULT 10 __INIT_ARRAY__ 48: 0001048c 0 NOTYPE GLOBAL DEFAULT ABS __bss_start 49: 00008360 40 FUNC GLOBAL DEFAULT 7 main 50: 0001048c 0 NOTYPE GLOBAL DEFAULT ABS __end__ 51: 00010398 0 NOTYPE GLOBAL DEFAULT 9 __PREINIT_ARRAY__ 52: 0001048c 0 NOTYPE GLOBAL DEFAULT ABS _edata 53: 0001048c 0 NOTYPE GLOBAL DEFAULT ABS _end 54: 0001048c 0 NOTYPE GLOBAL DEFAULT 14 __data_start root@android:/sdcard/Development/cpp # </code></pre> <p>EDIT 2 : result of running "mount" :</p> <pre><code>* daemon not running. starting it now on port 5037 * * daemon started successfully * shell@android:/ $ su su root@android:/ # mount mount rootfs / rootfs ro,relatime 0 0 tmpfs /dev tmpfs rw,nosuid,relatime,mode=755 0 0 devpts /dev/pts devpts rw,relatime,mode=600 0 0 proc /proc proc rw,relatime 0 0 sysfs /sys sysfs rw,relatime 0 0 none /acct cgroup rw,relatime,cpuacct 0 0 tmpfs /mnt/asec tmpfs rw,relatime,mode=755,gid=1000 0 0 tmpfs /mnt/obb tmpfs rw,relatime,mode=755,gid=1000 0 0 none /dev/cpuctl cgroup rw,relatime,cpu 0 0 /dev/block/mmcblk0p13 /system ext4 ro,relatime,barrier=1,data=ordered 0 0 /dev/block/mmcblk0p3 /efs ext4 rw,nosuid,nodev,noatime,barrier=1,journal_async_commit,data=ordered 0 0 /dev/block/mmcblk0p12 /cache ext4 rw,nosuid,nodev,noatime,errors=panic,barrier=1,journal_async_commit,data=ordered 0 0 /dev/block/mmcblk0p16 /data ext4 rw,nosuid,nodev,noatime,barrier=1,journal_async_commit,data=ordered,noauto_da_alloc,dis card 0 0 /sys/kernel/debug /sys/kernel/debug debugfs rw,relatime 0 0 /dev/fuse /storage/sdcard0 fuse rw,nosuid,nodev,noexec,relatime,user_id=1023,group_id=1023,default_permissions,allow_oth er 0 0 /dev/block/dm-0 /mnt/asec/eu.chainfire.supersu.pro-1 ext4 ro,dirsync,nosuid,nodev,noatime,barrier=1 0 0 /dev/block/dm-1 /mnt/asec/com.keramidas.TitaniumBackupPro-1 ext4 ro,dirsync,nosuid,nodev,noatime,barrier=1 0 0 /dev/block/dm-2 /mnt/asec/stericson.busybox.donate-1 ext4 ro,dirsync,nosuid,nodev,noatime,barrier=1 0 0 /dev/block/dm-3 /mnt/asec/eu.chainfire.mobileodin.pro-1 ext4 ro,dirsync,nosuid,nodev,noatime,barrier=1 0 0 /dev/block/dm-4 /mnt/asec/com.vito.lux-2 ext4 ro,dirsync,nosuid,nodev,noatime,barrier=1 0 0 /dev/block/dm-5 /mnt/asec/com.speedsoftware.rootexplorer-1 ext4 ro,dirsync,nosuid,nodev,noatime,barrier=1 0 0 /dev/block/dm-6 /mnt/asec/eu.chainfire.triangleaway-2 ext4 ro,dirsync,nosuid,nodev,noatime,barrier=1 0 0 /dev/block/dm-7 /mnt/asec/com.ea.game.realracing2_OTD_row-1 ext4 ro,dirsync,nosuid,nodev,noatime,barrier=1 0 0 /dev/block/dm-8 /mnt/asec/com.zausan.zscreenrecorderpro-1 ext4 ro,dirsync,nosuid,nodev,noatime,barrier=1 0 0 /dev/block/dm-9 /mnt/asec/sixgreen.aos.itap.notes-1 ext4 ro,dirsync,nosuid,nodev,noatime,barrier=1 0 0 /dev/block/dm-10 /mnt/asec/com.square_enix.android_googleplay.ffl_gp-1 ext4 ro,dirsync,nosuid,nodev,noatime,barrier=1 0 0 /dev/block/vold/179:17 /storage/extSdCard exfat rw,dirsync,nosuid,nodev,noexec,noatime,nodiratime,uid=1000,gid=1023,fmas k=0002,dmask=0002,allow_utime=0020,codepage=cp437,iocharset=utf8,namecase=0,errors=remount-ro 0 0 root@android:/ # </code></pre>
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    1. USujsgeyrr1f0d0d0r0h1h0j0j_juj
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      1. POgcc on rooted android 4.1.2
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    1. COcan you do an ldd on the resulting executable? My guess would be that you are missing some library required to run the resulting executable.
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      1. POgcc on rooted android 4.1.2
      1. USRick77
    2. CO"sh: ldd: not found" I forgot to say this, sorry. But I just ran readelf --symbols on test1 and got a result (help for interpreting it correctly would be appreciated) that I put in the EDIT of my initial question, for a number of chars reason
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      1. POgcc on rooted android 4.1.2
      1. USujsgeyrr1f0d0d0r0h1h0j0j_juj
    3. COHow dumb of me! Your executable has no "execute" permissions: chmod +x test should solve your problem :)
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      1. POgcc on rooted android 4.1.2
      1. USRick77
 

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