1/* toplev.h - Various declarations for functions found in toplev.c 2 Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005 3 Free Software Foundation, Inc. 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify it under 8the terms of the GNU General Public License as published by the Free 9Software Foundation; either version 2, or (at your option) any later 10version. 11 12GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13WARRANTY; without even the implied warranty of MERCHANTABILITY or 14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15for more details. 16 17You should have received a copy of the GNU General Public License 18along with GCC; see the file COPYING. If not, write to the Free 19Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 2002110-1301, USA. */ 21 22#ifndef GCC_TOPLEV_H 23#define GCC_TOPLEV_H 24 25/* If non-NULL, return one past-the-end of the matching SUBPART of 26 the WHOLE string. */ 27#define skip_leading_substring(whole, part) \ 28 (strncmp (whole, part, strlen (part)) ? NULL : whole + strlen (part)) 29 30extern int toplev_main (unsigned int, const char **); 31extern int read_integral_parameter (const char *, const char *, const int); 32extern void strip_off_ending (char *, int); 33extern const char *trim_filename (const char *); 34extern void _fatal_insn_not_found (rtx, const char *, int, const char *) 35 ATTRIBUTE_NORETURN; 36extern void _fatal_insn (const char *, rtx, const char *, int, const char *) 37 ATTRIBUTE_NORETURN; 38 39#define fatal_insn(msgid, insn) \ 40 _fatal_insn (msgid, insn, __FILE__, __LINE__, __FUNCTION__) 41#define fatal_insn_not_found(insn) \ 42 _fatal_insn_not_found (insn, __FILE__, __LINE__, __FUNCTION__) 43 44/* If we haven't already defined a frontend specific diagnostics 45 style, use the generic one. */ 46#ifndef GCC_DIAG_STYLE 47#define GCC_DIAG_STYLE __gcc_tdiag__ 48#endif 49/* None of these functions are suitable for ATTRIBUTE_PRINTF, because 50 each language front end can extend them with its own set of format 51 specifiers. We must use custom format checks. */ 52#if GCC_VERSION >= 4001 53#define ATTRIBUTE_GCC_DIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m, n))) ATTRIBUTE_NONNULL(m) 54#else 55#define ATTRIBUTE_GCC_DIAG(m, n) ATTRIBUTE_NONNULL(m) 56#endif 57extern void internal_error (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2) 58 ATTRIBUTE_NORETURN; 59extern void warning0 (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2); 60/* Pass one of the OPT_W* from options.h as the first parameter. */ 61extern void warning (int, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3); 62extern void error (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2); 63extern void fatal_error (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2) 64 ATTRIBUTE_NORETURN; 65extern void pedwarn (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2); 66extern void sorry (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2); 67extern void inform (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2); 68extern void verbatim (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2); 69 70extern void rest_of_decl_compilation (tree, int, int); 71extern void rest_of_type_compilation (tree, int); 72extern void tree_rest_of_compilation (tree); 73extern void init_optimization_passes (void); 74extern void finish_optimization_passes (void); 75extern bool enable_rtl_dump_file (int); 76 77extern void announce_function (tree); 78 79extern void error_for_asm (rtx, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3); 80extern void warning_for_asm (rtx, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3); 81extern void warn_deprecated_use (tree); 82 83#ifdef BUFSIZ 84extern void output_quoted_string (FILE *, const char *); 85extern void output_file_directive (FILE *, const char *); 86#endif 87 88#ifdef BUFSIZ 89 /* N.B. Unlike all the others, fnotice is just gettext+fprintf, and 90 therefore it can have ATTRIBUTE_PRINTF. */ 91extern void fnotice (FILE *, const char *, ...) 92 ATTRIBUTE_PRINTF_2; 93#endif 94 95extern void wrapup_global_declaration_1 (tree); 96extern bool wrapup_global_declaration_2 (tree); 97extern bool wrapup_global_declarations (tree *, int); 98extern void check_global_declaration_1 (tree); 99extern void check_global_declarations (tree *, int); 100extern void emit_debug_global_declarations (tree *, int); 101extern void write_global_declarations (void); 102 103/* A unique local time stamp, might be zero if none is available. */ 104extern unsigned local_tick; 105 106extern const char *progname; 107extern const char *dump_base_name; 108extern const char *aux_base_name; 109extern const char *aux_info_file_name; 110extern const char *asm_file_name; 111extern bool exit_after_options; 112 113extern int target_flags_explicit; 114 115/* True if the user has tagged the function with the 'section' 116 attribute. */ 117 118extern bool user_defined_section_attribute; 119 120/* See toplev.c. */ 121extern int flag_crossjumping; 122extern int flag_if_conversion; 123extern int flag_if_conversion2; 124extern int flag_keep_static_consts; 125extern int flag_peel_loops; 126extern int flag_rerun_cse_after_loop; 127extern int flag_thread_jumps; 128extern int flag_tracer; 129extern int flag_unroll_loops; 130extern int flag_unroll_all_loops; 131extern int flag_unswitch_loops; 132extern int flag_cprop_registers; 133extern int time_report; 134 135/* Things to do with target switches. */ 136extern void print_version (FILE *, const char *); 137extern void * default_get_pch_validity (size_t *); 138extern const char * default_pch_valid_p (const void *, size_t); 139 140/* The hashtable, so that the C front ends can pass it to cpplib. */ 141extern struct ht *ident_hash; 142 143/* This function can be used by targets to set the flags originally 144 implied by -ffast-math and -fno-fast-math. */ 145 146extern void set_fast_math_flags (int); 147 148/* Handle -d switch. */ 149extern void decode_d_option (const char *); 150 151/* Return true iff flags are set as if -ffast-math. */ 152extern bool fast_math_flags_set_p (void); 153 154/* Return log2, or -1 if not exact. */ 155extern int exact_log2 (unsigned HOST_WIDE_INT); 156 157/* Return floor of log2, with -1 for zero. */ 158extern int floor_log2 (unsigned HOST_WIDE_INT); 159 160/* Inline versions of the above for speed. */ 161#if GCC_VERSION >= 3004 162# if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG 163# define CLZ_HWI __builtin_clzl 164# define CTZ_HWI __builtin_ctzl 165# elif HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONGLONG 166# define CLZ_HWI __builtin_clzll 167# define CTZ_HWI __builtin_ctzll 168# else 169# define CLZ_HWI __builtin_clz 170# define CTZ_HWI __builtin_ctz 171# endif 172 173extern inline int 174floor_log2 (unsigned HOST_WIDE_INT x) 175{ 176 return x ? HOST_BITS_PER_WIDE_INT - 1 - (int) CLZ_HWI (x) : -1; 177} 178 179extern inline int 180exact_log2 (unsigned HOST_WIDE_INT x) 181{ 182 return x == (x & -x) && x ? (int) CTZ_HWI (x) : -1; 183} 184#endif /* GCC_VERSION >= 3004 */ 185 186/* Functions used to get and set GCC's notion of in what directory 187 compilation was started. */ 188 189extern const char *get_src_pwd (void); 190extern bool set_src_pwd (const char *); 191 192#endif /* ! GCC_TOPLEV_H */ 193