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author | das <das@noemail.net> | 2007-09-13 15:28:09 (GMT) |
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committer | das <das@noemail.net> | 2007-09-13 15:28:09 (GMT) |
commit | aca06afb4efb254fbc9c145875851cf09e0691b9 (patch) | |
tree | 593d357422c91ee5b5623ed463f7d5629d99a4a5 /generic/tclCompile.h | |
parent | d4a95d0141489d80a35a91f45a033447479b8539 (diff) | |
download | tcl-aca06afb4efb254fbc9c145875851cf09e0691b9.zip tcl-aca06afb4efb254fbc9c145875851cf09e0691b9.tar.gz tcl-aca06afb4efb254fbc9c145875851cf09e0691b9.tar.bz2 |
* generic/tclDTrace.d (new file): add DTrace provider for Tcl; allows
* generic/tclCompile.h: tracing of proc and command entry &
* generic/tclBasic.c: return, bytecode execution, object
* generic/tclExecute.c: allocation and more; with essentially
* generic/tclInt.h: zero cost when tracing is inactive;
* generic/tclObj.c: enable with --enable-dtrace configure
* generic/tclProc.c: arg (disabled by default, will only
* unix/Makefile.in: enable if DTrace is present).
* unix/configure.in: [Patch 1793984]
* macosx/Makefile: enable DTrace support.
* unix/configure: autoconf-2.13
FossilOrigin-Name: 9eb5b5b76c36ef5452df1d5d43ec78519fadb17b
Diffstat (limited to 'generic/tclCompile.h')
-rw-r--r-- | generic/tclCompile.h | 77 |
1 files changed, 76 insertions, 1 deletions
diff --git a/generic/tclCompile.h b/generic/tclCompile.h index 1769a76..06414fd 100644 --- a/generic/tclCompile.h +++ b/generic/tclCompile.h @@ -4,11 +4,12 @@ * Copyright (c) 1996-1998 Sun Microsystems, Inc. * Copyright (c) 1998-2000 by Scriptics Corporation. * Copyright (c) 2001 by Kevin B. Kenny. All rights reserved. + * Copyright (c) 2007 Daniel A. Steffen <das@users.sourceforge.net> * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclCompile.h,v 1.33.2.1 2006/11/28 22:20:00 andreas_kupries Exp $ + * RCS: @(#) $Id: tclCompile.h,v 1.33.2.2 2007/09/13 15:28:11 das Exp $ */ #ifndef _TCLCOMPILATION @@ -1082,6 +1083,80 @@ EXTERN int TclCompileVariableCmd _ANSI_ARGS_(( #define TclMin(i, j) ((((int) i) < ((int) j))? (i) : (j)) #define TclMax(i, j) ((((int) i) > ((int) j))? (i) : (j)) +/* + * DTrace probe macros (NOPs if DTrace support is not enabled). + */ + +#ifdef USE_DTRACE + +#include "tclDTrace.h" + +#if defined(__GNUC__ ) && __GNUC__ > 2 +/* Use gcc branch prediction hint to minimize cost of DTrace ENABLED checks. */ +#define unlikely(x) (__builtin_expect((x), 0)) +#else +#define unlikely(x) (x) +#endif + +#define TCL_DTRACE_PROC_ENTRY_ENABLED() unlikely(TCL_PROC_ENTRY_ENABLED()) +#define TCL_DTRACE_PROC_RETURN_ENABLED() unlikely(TCL_PROC_RETURN_ENABLED()) +#define TCL_DTRACE_PROC_RESULT_ENABLED() unlikely(TCL_PROC_RESULT_ENABLED()) +#define TCL_DTRACE_PROC_ARGS_ENABLED() unlikely(TCL_PROC_ARGS_ENABLED()) +#define TCL_DTRACE_PROC_ENTRY(a0, a1, a2) TCL_PROC_ENTRY(a0, a1, a2) +#define TCL_DTRACE_PROC_RETURN(a0, a1) TCL_PROC_RETURN(a0, a1) +#define TCL_DTRACE_PROC_RESULT(a0, a1, a2, a3) TCL_PROC_RESULT(a0, a1, a2, a3) +#define TCL_DTRACE_PROC_ARGS(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) \ + TCL_PROC_ARGS(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) + +#define TCL_DTRACE_CMD_ENTRY_ENABLED() unlikely(TCL_CMD_ENTRY_ENABLED()) +#define TCL_DTRACE_CMD_RETURN_ENABLED() unlikely(TCL_CMD_RETURN_ENABLED()) +#define TCL_DTRACE_CMD_RESULT_ENABLED() unlikely(TCL_CMD_RESULT_ENABLED()) +#define TCL_DTRACE_CMD_ARGS_ENABLED() unlikely(TCL_CMD_ARGS_ENABLED()) +#define TCL_DTRACE_CMD_ENTRY(a0, a1, a2) TCL_CMD_ENTRY(a0, a1, a2) +#define TCL_DTRACE_CMD_RETURN(a0, a1) TCL_CMD_RETURN(a0, a1) +#define TCL_DTRACE_CMD_RESULT(a0, a1, a2, a3) TCL_CMD_RESULT(a0, a1, a2, a3) +#define TCL_DTRACE_CMD_ARGS(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) \ + TCL_CMD_ARGS(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) + +#define TCL_DTRACE_INST_START_ENABLED() unlikely(TCL_INST_START_ENABLED()) +#define TCL_DTRACE_INST_DONE_ENABLED() unlikely(TCL_INST_DONE_ENABLED()) +#define TCL_DTRACE_INST_START(a0, a1, a2) TCL_INST_START(a0, a1, a2) +#define TCL_DTRACE_INST_DONE(a0, a1, a2) TCL_INST_DONE(a0, a1, a2) + +#define TCL_DTRACE_TCL_PROBE_ENABLED() unlikely(TCL_TCL_PROBE_ENABLED()) +#define TCL_DTRACE_TCL_PROBE(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) \ + TCL_TCL_PROBE(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) + +#else /* USE_DTRACE */ + +#define TCL_DTRACE_PROC_ENTRY_ENABLED() 0 +#define TCL_DTRACE_PROC_RETURN_ENABLED() 0 +#define TCL_DTRACE_PROC_RESULT_ENABLED() 0 +#define TCL_DTRACE_PROC_ARGS_ENABLED() 0 +#define TCL_DTRACE_PROC_ENTRY(a0, a1, a2) {} +#define TCL_DTRACE_PROC_RETURN(a0, a1) {} +#define TCL_DTRACE_PROC_RESULT(a0, a1, a2, a3) {} +#define TCL_DTRACE_PROC_ARGS(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) {} + +#define TCL_DTRACE_CMD_ENTRY_ENABLED() 0 +#define TCL_DTRACE_CMD_RETURN_ENABLED() 0 +#define TCL_DTRACE_CMD_RESULT_ENABLED() 0 +#define TCL_DTRACE_CMD_ARGS_ENABLED() 0 +#define TCL_DTRACE_CMD_ENTRY(a0, a1, a2) {} +#define TCL_DTRACE_CMD_RETURN(a0, a1) {} +#define TCL_DTRACE_CMD_RESULT(a0, a1, a2, a3) {} +#define TCL_DTRACE_CMD_ARGS(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) {} + +#define TCL_DTRACE_INST_START_ENABLED() 0 +#define TCL_DTRACE_INST_DONE_ENABLED() 0 +#define TCL_DTRACE_INST_START(a0, a1, a2) {} +#define TCL_DTRACE_INST_DONE(a0, a1, a2) {} + +#define TCL_DTRACE_TCL_PROBE_ENABLED() 0 +#define TCL_DTRACE_TCL_PROBE(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) {} + +#endif /* USE_DTRACE */ + # undef TCL_STORAGE_CLASS # define TCL_STORAGE_CLASS DLLIMPORT |