Thanks so far, Brian; I contacted Cary Audio last week, but did not
get a reply. All they did was switch off the server which had
firmware downloads, but I was able to pull a mirror of it.
It looks like Cary Audio outsourced the MPD related work to a Chinese
contractor who didn't know or care about copyright.
On 2018/01/31 03:33, Brian Luczkiewicz <br...@roonlabs.com> wrote:
> It was a surprise to me to learn that our code was being statically linked
> into mpd
Just in case Cary Audio denies it, here's an excerpt from "objdump -d
usr/bin/mpd":
0019d32c <RAAT__client_status_to_string@@Base>:
19d32c: e2403d5d sub r3, r0, #5952 ; 0x1740
19d330: e92d4010 push {r4, lr}
19d334: e2433030 sub r3, r3, #48 ; 0x30
19d338: e3530ffa cmp r3, #1000 ; 0x3e8
19d33c: 2a00001a bcs 19d3ac
<RAAT__client_status_to_string@@Base+0x80>
19d340: e3013771 movw r3, #6001 ; 0x1771
19d344: e1500003 cmp r0, r3
19d348: 0a000014 beq 19d3a0
<RAAT__client_status_to_string@@Base+0x74>
19d34c: e3013772 movw r3, #6002 ; 0x1772
19d350: e1500003 cmp r0, r3
19d354: 0a00000b beq 19d388
<RAAT__client_status_to_string@@Base+0x5c>
19d358: e3013770 movw r3, #6000 ; 0x1770
19d35c: e1500003 cmp r0, r3
19d360: 0a00000b beq 19d394
<RAAT__client_status_to_string@@Base+0x68>
19d364: e59f3064 ldr r3, [pc, #100] ; 19d3d0
<RAAT__client_status_to_string@@Base+0xa4>
19d368: e300221a movw r2, #538 ; 0x21a
19d36c: e59f1060 ldr r1, [pc, #96] ; 19d3d4
<RAAT__client_status_to_string@@Base+0xa8>
19d370: e59f0060 ldr r0, [pc, #96] ; 19d3d8
<RAAT__client_status_to_string@@Base+0xac>
19d374: e08f3003 add r3, pc, r3
19d378: e08f1001 add r1, pc, r1
19d37c: e28330c0 add r3, r3, #192 ; 0xc0
19d380: e08f0000 add r0, pc, r0
19d384: ebfa0e4c bl 20cbc <__assert_fail@plt>
19d388: e59f004c ldr r0, [pc, #76] ; 19d3dc
<RAAT__client_status_to_string@@Base+0xb0>
19d38c: e08f0000 add r0, pc, r0
19d390: e8bd8010 pop {r4, pc}
19d394: e59f0044 ldr r0, [pc, #68] ; 19d3e0
<RAAT__client_status_to_string@@Base+0xb4>
19d398: e08f0000 add r0, pc, r0
19d39c: e8bd8010 pop {r4, pc}
19d3a0: e59f003c ldr r0, [pc, #60] ; 19d3e4
<RAAT__client_status_to_string@@Base+0xb8>
19d3a4: e08f0000 add r0, pc, r0
19d3a8: e8bd8010 pop {r4, pc}
19d3ac: e59f3034 ldr r3, [pc, #52] ; 19d3e8
<RAAT__client_status_to_string@@Base+0xbc>
19d3b0: e3a02f85 mov r2, #532 ; 0x214
19d3b4: e59f1030 ldr r1, [pc, #48] ; 19d3ec
<RAAT__client_status_to_string@@Base+0xc0>
19d3b8: e59f0030 ldr r0, [pc, #48] ; 19d3f0
<RAAT__client_status_to_string@@Base+0xc4>
19d3bc: e08f3003 add r3, pc, r3
19d3c0: e08f1001 add r1, pc, r1
19d3c4: e28330c0 add r3, r3, #192 ; 0xc0
19d3c8: e08f0000 add r0, pc, r0
19d3cc: ebfa0e3a bl 20cbc <__assert_fail@plt>
This matches the source code in your SDK's raat/raat_client.c.
0x1770, 0x1771 and 0x1772 are RAAT__CLIENT_STATUS_NETWORK_ERROR and so
on.
The contractor forgot to disable assertions for the release build, and
it looks like compiler optimizations were disabled.
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