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* [patch][commit] Two problems with --gprof
@ 2006-09-27 20:37 Dave Brolley
  2006-09-27 20:46 ` Dave Brolley
  0 siblings, 1 reply; 2+ messages in thread
From: Dave Brolley @ 2006-09-27 20:37 UTC (permalink / raw)
  To: sid

[-- Attachment #1: Type: text/plain, Size: 413 bytes --]

Hi,

I've committed this patch which addresses two minor problems with the 
--gprof option.

1) The change to sidcpuutil.h addresses a problem in which 
--gprof=<file>,cycles was not recognized (i.e. cycles specified with no 
value -- default should be 1).

2) The change to commonCfg.cxx fixes an off-by-one problem which was 
causing an underflow.

Tested on the internal port which exposed the problems.

Dave

[-- Attachment #2: sid-gprof.ChangeLog --]
[-- Type: text/plain, Size: 340 bytes --]

sid/include/ChangeLog:
2006-09-27  Dave Brolley  <brolley@redhat.com>

	* sidcpuutil.h (basic_cpu::configure): Set gprof_prev_cycle to
	total_insn_count when gprof 'cycles' not specified.

sid/main/dynamic/ChangeLog:
2006-09-27  Dave Brolley  <brolley@redhat.com>

	* commonCfg.cxx (profile_opt_gprof_value): Handle "gprof=<file>,cycles".


[-- Attachment #3: sid-gprof.patch.txt --]
[-- Type: text/plain, Size: 2584 bytes --]

Index: sid/include/sidcpuutil.h
===================================================================
RCS file: /cvs/src/src/sid/include/sidcpuutil.h,v
retrieving revision 1.38
diff -c -p -r1.38 sidcpuutil.h
*** sid/include/sidcpuutil.h	26 Jun 2006 21:04:00 -0000	1.38
--- sid/include/sidcpuutil.h	27 Sep 2006 20:22:50 -0000
*************** namespace sidutil
*** 662,668 ****
  		    // Set the state so that the next insn will be sampled,
  		    // followed by samples at the specified interval.
  		    gprof_counter = step_insn_count - 1;
! 		    gprof_prev_cycle = this->total_insn_count - 1;
  		  }
  	      }
  	    return;
--- 662,668 ----
  		    // Set the state so that the next insn will be sampled,
  		    // followed by samples at the specified interval.
  		    gprof_counter = step_insn_count - 1;
! 		    gprof_prev_cycle = this->total_insn_count;
  		  }
  	      }
  	    return;
Index: sid/main/dynamic/commonCfg.cxx
===================================================================
RCS file: /cvs/src/src/sid/main/dynamic/commonCfg.cxx,v
retrieving revision 1.17
diff -c -p -r1.17 commonCfg.cxx
*** sid/main/dynamic/commonCfg.cxx	19 Sep 2006 18:40:56 -0000	1.17
--- sid/main/dynamic/commonCfg.cxx	27 Sep 2006 20:22:50 -0000
*************** SessionCfg::profile_opt_gprof_value (con
*** 776,793 ****
      profile_config_error (opt); // doesn't return
  
    vector<string> sub_parts = sidutil::tokenize (opt_parts[1], ",");
    string value = sub_parts[0];
!   if (size == 3)
      {
!       if (sub_parts.size () != 2 || sub_parts[1] != "cycles")
! 	profile_config_error (opt); // doesn't return
! 
!       unsigned n;
!       sid::component::status s = sidutil::parse_attribute (opt_parts[2], n);
!       if (s != sid::component::ok)
  	profile_config_error (opt); // doesn't return
  
!       value += "," + opt_parts[2];
      }
  
    need_gprof = true;
--- 776,800 ----
      profile_config_error (opt); // doesn't return
  
    vector<string> sub_parts = sidutil::tokenize (opt_parts[1], ",");
+   if (sub_parts.size () > 2)
+     profile_config_error (opt); // doesn't return
+ 
    string value = sub_parts[0];
!   if (sub_parts.size () == 2)
      {
!       if (sub_parts[1] != "cycles")
  	profile_config_error (opt); // doesn't return
  
!       if (size == 3)
! 	{
! 	  unsigned n;
! 	  sid::component::status s = sidutil::parse_attribute (opt_parts[2], n);
! 	  if (s != sid::component::ok)
! 	    profile_config_error (opt); // doesn't return
! 	  value += "," + opt_parts[2];
! 	}
!       else
! 	value += ",1";
      }
  
    need_gprof = true;

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2006-09-27 20:37 [patch][commit] Two problems with --gprof Dave Brolley
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