confusion on parameters of __profile_call_entry

[Peng Zhao <pengzhao@xxxxxxxxxxxxxx>]

Hi,

        I dumped the whirl tree of the instrumented program. I got
confused on the number of the parameters of __profile_call_entry
and __profile_call_exit.

        The prototype of __profile_call_exit is 
void __profile_call_entry(void *pu_handle, int call_id);



but in the dumped whirl tree, it seems to me that it get three parameters:



  BLOCK
    U8U8LDID 264 <1,5,.preg_U8> T<9,.predef_U8,8> # pu_instrument_handle
   U8PARM 2 T<9,.predef_U8,8> # by_value
    I4INTCONST 0 (0x0)
   I4PARM 2 T<4,.predef_I4,4> # by_value
    U8LDA 0 <1,26,(7_bytes)_"printf\000"> T<34,anon_ptr.,8>
   U8PARM 2 T<9,.predef_U8,8> # by_value
  VCALL 126 <1,27,__profile_call_entry> # flags 0x7e
 LOC 1 10 {
 LOC 1 11 printf("hi, i > 100\n");
    U8LDA 0 <1,22,(13_bytes)_"hi,_i_>_100\n\000"> T<32,anon_ptr.,8>
   U8PARM 2 T<28,anon_ptr.,8> # by_value
  VCALL 126 <1,21,printf> # flags 0x7e
    U8U8LDID 264 <1,5,.preg_U8> T<9,.predef_U8,8> # pu_instrument_handle
   U8PARM 2 T<9,.predef_U8,8> # by_value
    I4INTCONST 0 (0x0)
   I4PARM 2 T<4,.predef_I4,4> # by_value
    U8LDA 0 <1,26,(7_bytes)_"printf\000"> T<34,anon_ptr.,8>
   U8PARM 2 T<9,.predef_U8,8> # by_value
  VCALL 126 <1,28,__profile_call_exit> # flags 0x7e
 END_BLOCK


        What happens? It seems to me that Instrument_Call calls the wrong
Gen_Call (or Gen_Call_Shell).
        The source program is very simple and enclosed.

        Thanks for your help.
                                                Peng

test.c
Description: Text document