https://github.com/gem5/gem5/issues/22
Has anyone ever made this work? 68af229490fc811aebddf68b3e2e09e63a5fa475, gdb 7.11.1 built by Buildroot An extremely similar aarch64 setup works for QEMU, and x86 and arm both work for gem5, just aarch64 does not. gem5 command: ``` M5_PATH='/home/ciro/bak/git/linux-kernel-module-cheat/buildroot/output.aarch64~/build/gem5-1.0/system' '/home/ciro/bak/git/linux-kernel-module-cheat/buildroot/output.aarch64~/build/gem5-1.0/gem5/build/ARM/gem5.opt' '/home/ciro/bak/git/linux-kernel-module-cheat/buildroot/output.aarch64~/build/gem5-1.0/gem5/configs/example/fs.py' --checkpoint-dir='./m5out/cpts/aarch64' --disk-image='/home/ciro/bak/git/linux-kernel-module-cheat/buildroot/output.aarch64~/images/rootfs.ext2' --kernel='/home/ciro/bak/git/linux-kernel-module-cheat/buildroot/output.aarch64~/build/linux-custom/vmlinux' --mem-size=256MB --num-cpus='1' --command-line='earlyprintk=pl011,0x1c090000 console=ttyAMA0 lpj=19988480 rw loglevel=8 mem=256MB root=/dev/sda nokaslr norandmaps printk.devkmsg=on printk.time=y' --dtb-file='/home/ciro/bak/git/linux-kernel-module-cheat/buildroot/output.aarch64~/build/gem5-1.0/gem5/system/arm/dt/armv8_gem5_v1_1cpu.dtb' --machine-type=VExpress_GEM5_V1 ``` gdb command: ``` /home/ciro/bak/git/linux-kernel-module-cheat/buildroot/output.aarch64~/host/usr/bin/aarch64-linux-gdb -q -ex 'add-auto-load-safe-path /home/ciro/bak/git/linux-kernel-module-cheat/buildroot/output.aarch64~/build/linux-custom' -ex 'file vmlinux' -ex 'target remote localhost:7000' -ex 'continue' -ex 'lx-symbols ../kernel_module-1.0/' ``` gem5 stdout says: ``` 4107766500: system.remote_gdb: remote gdb attached warn: Couldn't read data from debugger. 4107767500: system.remote_gdb: remote gdb detached ``` Error message: ``` Reading symbols from vmlinux...done. Remote debugging using localhost:7000 Remote 'g' packet reply is too long: 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 ``` Tried to add `set tdesc filename aarch64.xml` as mentioned at: https://stackoverflow.com/questions/27411621/remote-g-packet-reply-is-too-long-aarch64-arm64/27430836#27430836 but no change. This is the exact reproduction setup: https://github.com/cirosantilli/linux-kernel-module-cheat/tree/a1a6a5d6fb417238ce4064ef7b3319686f02fd6b#gem5-gdb-step-debug-kernel-aarch64 _______________________________________________ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
