mirror of git://gcc.gnu.org/git/gcc.git
156 lines
4.1 KiB
C
156 lines
4.1 KiB
C
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/*
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Test to see if a particular fix should be applied to a header file.
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Copyright (C) 1997, 1998, 1999, 2000, 2009, 2012
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Free Software Foundation, Inc.
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= = = = = = = = = = = = = = = = = = = = = = = = =
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NOTE TO DEVELOPERS
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The routines you write here must work closely with fixincl.c.
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Here are the rules:
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1. Every test procedure name must be suffixed with "_test".
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These routines will be referenced from inclhack.def, sans the suffix.
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2. Use the "TEST_FOR_FIX_PROC_HEAD()" macro _with_ the "_test" suffix
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(I cannot use the ## magic from ANSI C) for defining your entry point.
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3. Put your test name into the FIX_TEST_TABLE
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4. Do not write anything to stdout. It may be closed.
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5. Write to stderr only in the event of a reportable error
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In such an event, call "exit(1)".
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= = = = = = = = = = = = = = = = = = = = = = = = =
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#include "fixlib.h"
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#define _ENV_(v,m,n,t) extern char const * v;
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ENV_TABLE
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#undef _ENV_
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typedef apply_fix_p_t t_test_proc ( tCC* file, tCC* text );
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typedef struct {
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tCC* test_name;
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t_test_proc* test_proc;
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} test_entry_t;
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#define FIX_TEST_TABLE \
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_FT_( "machine_name", machine_name_test ) \
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_FT_( "stdc_0_in_system_headers", stdc_0_in_system_headers_test )
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#define TEST_FOR_FIX_PROC_HEAD( test ) \
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static apply_fix_p_t test ( tCC* fname ATTRIBUTE_UNUSED, \
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tCC* text ATTRIBUTE_UNUSED )
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TEST_FOR_FIX_PROC_HEAD( machine_name_test )
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{
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regex_t *label_re, *name_re;
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regmatch_t match[2];
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tCC *base, *limit;
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IGNORE_ARG(fname);
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if (!mn_get_regexps (&label_re, &name_re, "machine_name_test"))
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return SKIP_FIX;
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for (base = text;
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xregexec (label_re, base, 2, match, 0) == 0;
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base = limit)
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{
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base += match[0].rm_eo;
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/* We're looking at an #if or #ifdef. Scan forward for the
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next non-escaped newline. */
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limit = base;
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do
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{
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limit++;
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limit = strchr (limit, '\n');
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if (!limit)
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return SKIP_FIX;
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}
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while (limit[-1] == '\\');
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/* If the 'name_pat' matches in between base and limit, we have
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a bogon. It is not worth the hassle of excluding comments,
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because comments on #if/#ifdef/#ifndef lines are rare,
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and strings on such lines are illegal.
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REG_NOTBOL means 'base' is not at the beginning of a line, which
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shouldn't matter since the name_re has no ^ anchor, but let's
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be accurate anyway. */
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if (xregexec (name_re, base, 1, match, REG_NOTBOL))
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return SKIP_FIX; /* No match in file - no fix needed */
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/* Match; is it on the line? */
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if (match[0].rm_eo <= limit - base)
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return APPLY_FIX; /* Yup */
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/* Otherwise, keep looking... */
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}
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return SKIP_FIX;
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}
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TEST_FOR_FIX_PROC_HEAD( stdc_0_in_system_headers_test )
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{
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#ifdef STDC_0_IN_SYSTEM_HEADERS
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return (pz_machine == NULL) ? APPLY_FIX : SKIP_FIX;
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#else
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return APPLY_FIX;
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#endif
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}
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/* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
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test for fix selector
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THIS IS THE ONLY EXPORTED ROUTINE
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*/
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apply_fix_p_t
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run_test( tCC* tname, tCC* fname, tCC* text )
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{
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#define _FT_(n,p) { n, p },
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static test_entry_t test_table[] = { FIX_TEST_TABLE { NULL, NULL }};
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#undef _FT_
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#define TEST_TABLE_CT (ARRAY_SIZE (test_table)-1)
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int ct = TEST_TABLE_CT;
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test_entry_t* pte = test_table;
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do
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{
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if (strcmp( pte->test_name, tname ) == 0)
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return (*pte->test_proc)( fname, text );
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pte++;
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} while (--ct > 0);
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fprintf( stderr, "fixincludes error: the `%s' fix test is unknown\n",
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tname );
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exit( 3 );
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}
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