CODEWITHSUNDEEP
debuggingarmgdbserver
user3428154
user3428154

Reputation: 1364

gdbserver: Target description specified unknown architecture "aarch64"

I try to use remotely the gdbserver for debug as follows

Start the gdbserver on target machine

$ gdbserver localhost:2000 hello -l 20 -b 10 --enable-targets=all

Host machine has the program binary with debugging enabled

"copied binary from ARM target to host"

Run gdb on host machine

$ gdb -q --args hello --enable-target=all

Connect to the target

(gdb) target remote 192.168.15.132
192.168.15.132: No such file or directory.
(gdb) target remote 192.168.15.132:2000
Remote debugging using 192.168.15.132:2000
warning: while parsing target description (at line 11): Target description specified unknown architecture "aarch64"
warning: Could not load XML target description; ignoring
Remote register badly formatted: T051d:0000000000000000;1f:80fcffffffff0000;20:403cfdb7ffff0000;thread:pd60.d60;core:1;
here: 00000000;1f:80fcffffffff0000;20:403cfdb7ffff0000;thread:pd60.d60;core:1;
(gdb) q

I am looking for an advice to correctly debug with ARM remote target.

Upvotes: 10

Views: 16774

Answers (2)

Frant
Frant

Reputation: 5925

Since you are reporting that your GDB supports the following architectures: i386:x64-32 i386:x86-64:intel i386 i386:x64-32:intel i386:x86-64:nacl i386:intel i386:x64-32:nacl i8086 i386:nacl i386:x86-64, you may be attempting to remotely debug an aarch64-linux-gnu executable using an x86_64-targeted version of gdb.I would suggest to download/install gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz:

wget https://releases.linaro.org/components/toolchain/binaries/latest-7/aarch64-linux-gnu/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz
tar Jxvf  gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz -C /opt

and then use /opt/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-gdb for remotely debugging your program.

Upvotes: 1

Syfer Polski
Syfer Polski

Reputation: 368

To debug executables compiled for a different architecture, install gdb-multiarch and run gdb-multiarch instead of gdb. Different distributions compile gdb differently and some even lack the multiarch version in their repositories - RHEL doesn't include it, but it's present in Ubuntu and Debian.

Upvotes: 27

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