Because I’m so new, and still learning, I want to give an update and seek further assistance.
First, I finally realized Openwrt was using sstrip on the final binaries… I’ve turned that off.
Second, now that it says it’s reading the symbols ok, I tried again:
grommish@norwits:~/openwrt$ ./scripts/remote-gdb 192.168.1.1:9000 build_dir/target-mips64_octeon3_64_musl/suricata-6.0.0-beta1/ipkg-mips64_octeon3/suricata6/usr/bin/suricata
Using target mips64_octeon3_64 (musl, )
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Reading symbols from build_dir/target-mips64_octeon3_64_musl/suricata-6.0.0-beta1/ipkg-mips64_octeon3/suricata6/usr/bin/suricata...
warning: Unsupported auto-load script at offset 0 in section .debug_gdb_scripts
of file /home/grommish/openwrt/build_dir/target-mips64_octeon3_64_musl/suricata-6.0.0-beta1/ipkg-mips64_octeon3/suricata6/usr/bin/suricata.
Use `info auto-load python-scripts [REGEXP]' to list them.
0x000000fff7f43a00 in _dlstart ()
from /home/grommish/openwrt/scripts/../staging_dir/target-mips64_octeon3_64_musl/root-octeon/lib/ld-musl-mips64-sf.so.1
(gdb) set remote exec-file /usr/bin/suricata
(gdb) set args -c /etc/suricata/suricata.yaml -i eth0
(gdb) run
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /home/grommish/openwrt/build_dir/target-mips64_octeon3_64_musl/suricata-6.0.0-beta1/ipkg-mips64_octeon3/suricata6/usr/bin/suricata -c /etc/suricata/suricata.yaml -i eth0
Program received signal SIGILL, Illegal instruction.
`0x0000000120eab7fc` in decfloat (f=0xffffffd7c0, c=49, bits=53, emin=-1074, sign=1, pok=1) at src/internal/floatscan.c:67
67 src/internal/floatscan.c: No such file or directory.
(gdb) x/i
Argument required (starting display address).
(gdb) x/i 0x0000000120eab7fc
=> 0x120eab7fc <decfloat+60>: sdc1 $f24,8376(sp)
(gdb)
The 0x0000000120eab7fc seems to be the space that it dies at, and when i do the x/i on it, it returns the sdc1
If i x/i on the FILE f* pointer (0xffffffd7c0), I get:
(gdb) x/i 0xffffffd7c0
0xffffffd7c0: dsra32 zero,zero,0x3
(gdb)
Which shows as:
DSRA32 Doubleword Shift Right Arithmetic Plus 32
Again, i apologize to all because I am seriously learning as I go and trying to get those with the knowledge information that can be useful.