51 lines
1.8 KiB
Python
51 lines
1.8 KiB
Python
import subprocess, os, glob, time, struct
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def mem_open(pid): return os.open(f'/proc/{pid}/mem', os.O_RDONLY)
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def find_host(proc, wait=120):
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t0=time.time()
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while time.time()-t0<wait:
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for p in glob.glob('/proc/[0-9]*'):
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try:
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pid=int(os.path.basename(p))
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cmd=open(f'/proc/{pid}/cmdline','rb').read().replace(b'\0',b' ').decode('utf8','replace')
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maps=open(f'/proc/{pid}/maps').read()
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except Exception: continue
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if 'yabridge-host' in cmd and 'soothe2' in maps: return pid
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time.sleep(0.05)
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return None
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os.system("pkill -9 -x reaper 2>/dev/null; pkill -9 -f '[y]abridge' 2>/dev/null; sleep 1")
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proc=subprocess.Popen(['/usr/bin/reaper','-nosplash','-ignoreerrors','-renderproject','/home/m/soothe-bt/dual300.rpp'],
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stdout=open('/dev/null','w'),stderr=subprocess.STDOUT)
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host=find_host(proc); print('host',host)
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time.sleep(4)
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fd=mem_open(host)
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SIG=struct.pack('<I',0x472c4400)
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t0=time.time(); total=0; hits={}
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for line in open(f'/proc/{host}/maps').read().splitlines():
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p=line.split(); lo,hi=(int(x,16) for x in p[0].split('-'))
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if 'r' not in p[1]: continue
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t0r=time.time()
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ok_read=0
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a=lo
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while a<hi:
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n=min(hi-a, 0x400000)
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try:
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d=os.pread(fd,n,a)
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except Exception:
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a+=n; continue
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if not d:
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a+=n; continue
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ok_read+=len(d)
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i=0
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while True:
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i=d.find(SIG,i)
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if i<0: break
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hits[a+i]=None; i+=1
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a+=n
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if ok_read:
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print(' 0x%x-%x MB=%.1f ok=%.1fMB'%(lo,hi,(hi-lo)/1e6,ok_read/1e6))
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total+=ok_read
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print('scanned ok=%.0fMB t=%.1fs n44100=%d'%(total/1e6,time.time()-t0,len(hits)))
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for a in list(hits)[:5]:
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print(' HIT 0x%x'%a)
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proc.kill()
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