X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fparams.c;h=793ddef924173e3057b2ade463dc14957953b6bf;hb=6620d7d7c5f2fe5df0df2b85e143746f76fdd4cf;hp=965c7cccff7a926c51a21d82e421f89a565b72a1;hpb=876760f64a4f5dff31960d263599835694f7698a;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/params.c b/gcc/params.c index 965c7cccff7..793ddef9241 100644 --- a/gcc/params.c +++ b/gcc/params.c @@ -1,12 +1,13 @@ /* params.c - Run-time parameters. - Copyright (C) 2001, 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 2001, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011 + Free Software Foundation, Inc. Written by Mark Mitchell . This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free -Software Foundation; either version 2, or (at your option) any later +Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY @@ -15,18 +16,15 @@ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License -along with GCC; see the file COPYING. If not, write to the Free -Software Foundation, 59 Temple Place - Suite 330, Boston, MA -02111-1307, USA. - -*/ +along with GCC; see the file COPYING3. If not see +. */ #include "config.h" #include "system.h" #include "coretypes.h" -#include "tm.h" +#include "common/common-target.h" #include "params.h" -#include "toplev.h" +#include "diagnostic-core.h" /* An array containing the compiler parameters and their current values. */ @@ -34,17 +32,30 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA param_info *compiler_params; /* The number of entries in the table. */ - static size_t num_compiler_params; +/* Whether the parameters have all been initialized and had their + default values determined. */ +static bool params_finished; + +static const param_info lang_independent_params[] = { +#define DEFPARAM(ENUM, OPTION, HELP, DEFAULT, MIN, MAX) \ + { OPTION, DEFAULT, MIN, MAX, HELP }, +#include "params.def" +#undef DEFPARAM + { NULL, 0, 0, 0, NULL } +}; + /* Add the N PARAMS to the current list of compiler parameters. */ void add_params (const param_info params[], size_t n) { + gcc_assert (!params_finished); + /* Allocate enough space for the new parameters. */ - compiler_params = xrealloc (compiler_params, - (num_compiler_params + n) * sizeof (param_info)); + compiler_params = XRESIZEVEC (param_info, compiler_params, + num_compiler_params + n); /* Copy them into the table. */ memcpy (compiler_params + num_compiler_params, params, @@ -53,10 +64,49 @@ add_params (const param_info params[], size_t n) num_compiler_params += n; } -/* Set the VALUE associated with the parameter given by NAME. */ +/* Add all parameters and default values that can be set in both the + driver and the compiler proper. */ + +void +global_init_params (void) +{ + add_params (lang_independent_params, LAST_PARAM); + targetm_common.option_default_params (); +} + +/* Note that all parameters have been added and all default values + set. */ + +void +finish_params (void) +{ + params_finished = true; +} + +/* Set the value of the parameter given by NUM to VALUE in PARAMS and + PARAMS_SET. If EXPLICIT_P, this is being set by the user; + otherwise it is being set implicitly by the compiler. */ + +static void +set_param_value_internal (compiler_param num, int value, + int *params, int *params_set, + bool explicit_p) +{ + size_t i = (size_t) num; + + gcc_assert (params_finished); + + params[i] = value; + if (explicit_p) + params_set[i] = true; +} + +/* Set the VALUE associated with the parameter given by NAME in PARAMS + and PARAMS_SET. */ void -set_param_value (const char *name, int value) +set_param_value (const char *name, int value, + int *params, int *params_set) { size_t i; @@ -77,10 +127,65 @@ set_param_value (const char *name, int value) compiler_params[i].option, compiler_params[i].max_value); else - compiler_params[i].value = value; + set_param_value_internal ((compiler_param) i, value, + params, params_set, true); return; } /* If we didn't find this parameter, issue an error message. */ error ("invalid parameter %qs", name); } + +/* Set the value of the parameter given by NUM to VALUE in PARAMS and + PARAMS_SET, implicitly, if it has not been set explicitly by the + user. */ + +void +maybe_set_param_value (compiler_param num, int value, + int *params, int *params_set) +{ + if (!params_set[(int) num]) + set_param_value_internal (num, value, params, params_set, false); +} + +/* Set the default value of a parameter given by NUM to VALUE, before + option processing. */ + +void +set_default_param_value (compiler_param num, int value) +{ + gcc_assert (!params_finished); + + compiler_params[(int) num].default_value = value; +} + +/* Return the default value of parameter NUM. */ + +int +default_param_value (compiler_param num) +{ + return compiler_params[(int) num].default_value; +} + +/* Initialize an array PARAMS with default values of the + parameters. */ + +void +init_param_values (int *params) +{ + size_t i; + + gcc_assert (params_finished); + + for (i = 0; i < num_compiler_params; i++) + params[i] = compiler_params[i].default_value; +} + +/* Return the current value of num_compiler_params, for the benefit of + plugins that use parameters as features. */ + +size_t +get_num_compiler_params (void) +{ + return num_compiler_params; +}