egcs/gcc ChangeLog c-common.c c-decl.c expr.h ...

[Ken Raeburn]

CVSROOT:	/egcs/carton/cvsfiles
Module name:	egcs
Changes by:	raeburn@egcs.cygnus.com	98/07/30 10:38:23

Modified files:
	gcc            : ChangeLog c-common.c c-decl.c expr.h 
	                 extend.texi flags.h function.c function.h 
	                 invoke.texi optabs.c toplev.c tree.h 
	gcc/testsuite  : ChangeLog 
	gcc/testsuite/gcc.c-torture/special: special.exp 
Added files:
	gcc/testsuite/gcc.c-torture/special: eeprof-1.c 

Log message:
	Function entry/exit profiling instrumentation:
	* expr.h (profile_function_entry_libfunc, profile_function_exit_libfunc):
	Declare new variables.
	* optabs.c: Define them here.
	(init_optabs): Initialize them.
	* tree.h (struct tree_decl): New flag no_instrument_function_entry_exit.
	(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT): New accessor macro.
	* c-decl.c (duplicate_decls): Merge it.
	* c-common.c (enum attrs): New value A_NO_INSTRUMENT_FUNCTION.
	(init_attributes): Use it for "no_instrument_function".
	(decl_attributes): Handle it, for functions that have not yet been compiled.
	Set decl flag.
	* flags.h (flag_instrument_function_entry_exit): Declare new variable.
	* toplev.c (flag_instrument_function_entry_exit): Define it here.
	(f_options): New option "instrument-functions".
	* function.h (struct function): New field instrument_entry_exit.
	* function.c (current_function_instrument_entry_exit): New variable.
	(push_function_context_to, pop_function_context_from): Save and restore.
	(expand_function_start): Set current_ variable, maybe emit return label and
	entry profile call.
	(expand_function_end): Maybe emit exit profile call.
	
	Testsuite:
	* gcc.c-torture/special/eeprof-1.c: New test, for -finstrument-functions.
	* gcc.c-torture/special/special.exp: Run it.