C Instrumentation Framework

Bug #5314

Updated by Vadim Mutilin about 10 years ago

For the code  
 <pre><code class="c"> @ 
          ax25_dev *ax25_dev; 
          ... 
          if ((ax25_dev = ax25_dev_ax25dev(dev)) == NULL) 
                  goto free; 
 </code></pre> @ 

 C-Backend generates  
 <pre><code class="c"> @ 
   ax25_dev *ax25_dev; 
   # 232 "net/ax25/ax25_in.o.c.prepared" 
   ... skb_reset_transport_header ( skb ); 
   # 234 "net/ax25/ax25_in.o.c.prepared" 
   if (( ax25_dev = ax25_dev_ax25dev ( dev ) ) == ( ( ax25_dev *) 0 )) 
     goto free; 
 </code></pre> 

 @ 
 GCC error: 
 <pre> 
 net/ax25/ax25_in.o.c.prepared: In function ‘ax25_rcv’: 
 net/ax25/ax25_in.o.c.prepared:234:64: error: expected expression before ‘)’ token 
 </pre> 

 CPAchecker fails with 
 <pre> 
 Error: Parsing failed (Invalid type encountered in: ax25_dev    in line 65224: ax25_dev (full line is if (( ax25_dev = ax25_dev_ax25dev ( dev ) ) == ( ( ax25_dev *) 0 )) 
     goto free;)) (EclipseCParser.buildCFA, SEVERE) 
 </pre> 

 32_7a, linux-3.17-rc1, net/ax25/ax25.ko

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