213 lines
6.0 KiB
C
213 lines
6.0 KiB
C
|
/* Compilation switch flag definitions for GNU CC.
|
|||
|
|
Copyright (C) 1987, 1988 Free Software Foundation, Inc.
|
|||
|
|
|
|||
|
|
This file is part of GNU CC.
|
|||
|
|
|
|||
|
|
GNU CC 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 1, or (at your option)
|
|||
|
|
any later version.
|
|||
|
|
|
|||
|
|
GNU CC is distributed in the hope that it will be useful,
|
|||
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|||
|
|
MERCHANTABILITY or 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 GNU CC; see the file COPYING. If not, write to
|
|||
|
|
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|||
|
|
|
|||
|
|
/* Name of the input .c file being compiled. */
|
|||
|
|
extern char *main_input_filename;
|
|||
|
|
|
|||
|
|
/* 1 => write gdb debugging output (using symout.c).
|
|||
|
|
2 => write dbx debugging output (using dbxout.c).
|
|||
|
|
3 => write sdb debugging output (using sdbout.c). */
|
|||
|
|
enum debugger { NO_DEBUG = 0, GDB_DEBUG = 1, DBX_DEBUG = 2, SDB_DEBUG = 3,
|
|||
|
|
EXTENDED_DBX_DEBUG = 4, LINENO_DEBUG };
|
|||
|
|
|
|||
|
|
extern enum debugger write_symbols;
|
|||
|
|
|
|||
|
|
/* Nonzero means use GDB-only extensions of DBX format. */
|
|||
|
|
extern int use_gdb_dbx_extensions;
|
|||
|
|
|
|||
|
|
/* Nonzero means do optimizations. -opt. */
|
|||
|
|
|
|||
|
|
extern int optimize;
|
|||
|
|
|
|||
|
|
/* Nonzero means do stupid register allocation. -noreg.
|
|||
|
|
Currently, this is 1 if `optimize' is 0. */
|
|||
|
|
|
|||
|
|
extern int obey_regdecls;
|
|||
|
|
|
|||
|
|
/* Don't print functions as they are compiled and don't print
|
|||
|
|
times taken by the various passes. -quiet. */
|
|||
|
|
|
|||
|
|
extern int quiet_flag;
|
|||
|
|
|
|||
|
|
/* Don't print warning messages. -w. */
|
|||
|
|
|
|||
|
|
extern int inhibit_warnings;
|
|||
|
|
|
|||
|
|
/* Do print extra warnings (such as for uninitialized variables). -W. */
|
|||
|
|
|
|||
|
|
extern int extra_warnings;
|
|||
|
|
|
|||
|
|
/* Nonzero to warn about unused local variables. */
|
|||
|
|
|
|||
|
|
extern int warn_unused;
|
|||
|
|
|
|||
|
|
/* Nonzero means warn about all declarations which shadow others. */
|
|||
|
|
|
|||
|
|
extern int warn_shadow;
|
|||
|
|
|
|||
|
|
/* Warn if a switch on an enum fails to have a case for every enum value. */
|
|||
|
|
|
|||
|
|
extern int warn_switch;
|
|||
|
|
|
|||
|
|
/* Warn if a type conversion is done that might have confusing results. */
|
|||
|
|
|
|||
|
|
extern int warn_conversion;
|
|||
|
|
|
|||
|
|
/* Nonzero means warn about any identifiers that match in the first N
|
|||
|
|
characters. The value N is in `id_clash_len'. */
|
|||
|
|
|
|||
|
|
extern int warn_id_clash;
|
|||
|
|
extern int id_clash_len;
|
|||
|
|
|
|||
|
|
/* Nonzero means warn if inline function is too large. */
|
|||
|
|
|
|||
|
|
extern int warn_inline;
|
|||
|
|
|
|||
|
|
/* Nonzero if generating code to do profiling. */
|
|||
|
|
|
|||
|
|
extern int profile_flag;
|
|||
|
|
|
|||
|
|
/* Nonzero if generating code to do profiling on the basis of basic blocks. */
|
|||
|
|
|
|||
|
|
extern int profile_block_flag;
|
|||
|
|
|
|||
|
|
/* Nonzero for -pedantic switch: warn about anything
|
|||
|
|
that standard C or C++ forbids. */
|
|||
|
|
|
|||
|
|
extern int pedantic;
|
|||
|
|
|
|||
|
|
/* Now the symbols that are set with `-f' switches. */
|
|||
|
|
|
|||
|
|
/* Nonzero means `char' should be signed. */
|
|||
|
|
|
|||
|
|
extern int flag_signed_char;
|
|||
|
|
|
|||
|
|
/* Nonzero means give an enum type only as many bytes as it needs. */
|
|||
|
|
|
|||
|
|
extern int flag_short_enums;
|
|||
|
|
|
|||
|
|
/* Nonzero for -fcaller-saves: allocate values in regs that need to
|
|||
|
|
be saved across function calls, if that produces overall better code.
|
|||
|
|
Optional now, so people can test it. */
|
|||
|
|
|
|||
|
|
extern int flag_caller_saves;
|
|||
|
|
|
|||
|
|
/* Nonzero for -fpcc-struct-return: return values the same way PCC does. */
|
|||
|
|
|
|||
|
|
extern int flag_pcc_struct_return;
|
|||
|
|
|
|||
|
|
/* Nonzero for -fforce-mem: load memory value into a register
|
|||
|
|
before arithmetic on it. This makes better cse but slower compilation. */
|
|||
|
|
|
|||
|
|
extern int flag_force_mem;
|
|||
|
|
|
|||
|
|
/* Nonzero for -fforce-addr: load memory address into a register before
|
|||
|
|
reference to memory. This makes better cse but slower compilation. */
|
|||
|
|
|
|||
|
|
extern int flag_force_addr;
|
|||
|
|
|
|||
|
|
/* Nonzero for -fdefer-pop: don't pop args after each function call;
|
|||
|
|
instead save them up to pop many calls' args with one insns. */
|
|||
|
|
|
|||
|
|
extern int flag_defer_pop;
|
|||
|
|
|
|||
|
|
/* Nonzero for -ffloat-store: don't allocate floats and doubles
|
|||
|
|
in extended-precision registers. */
|
|||
|
|
|
|||
|
|
extern int flag_float_store;
|
|||
|
|
|
|||
|
|
/* Nonzero for -fcombine-regs:
|
|||
|
|
allow instruction combiner to combine an insn
|
|||
|
|
that just copies one reg to another. */
|
|||
|
|
|
|||
|
|
extern int flag_combine_regs;
|
|||
|
|
|
|||
|
|
/* Nonzero enables strength-reduction in loop.c. */
|
|||
|
|
|
|||
|
|
extern int flag_strength_reduce;
|
|||
|
|
|
|||
|
|
/* Nonzero for -fcse-follow-jumps:
|
|||
|
|
have cse follow jumps to do a more extensive job. */
|
|||
|
|
|
|||
|
|
extern int flag_cse_follow_jumps;
|
|||
|
|
|
|||
|
|
/* Nonzero for -fwritable-strings:
|
|||
|
|
store string constants in data segment and don't uniquize them. */
|
|||
|
|
|
|||
|
|
extern int flag_writable_strings;
|
|||
|
|
|
|||
|
|
/* Nonzero means don't put addresses of constant functions in registers.
|
|||
|
|
Used for compiling the Unix kernel, where strange substitutions are
|
|||
|
|
done on the assembly output. */
|
|||
|
|
|
|||
|
|
extern int flag_no_function_cse;
|
|||
|
|
|
|||
|
|
/* Nonzero for -fomit-frame-pointer:
|
|||
|
|
don't make a frame pointer in simple functions that don't require one. */
|
|||
|
|
|
|||
|
|
extern int flag_omit_frame_pointer;
|
|||
|
|
|
|||
|
|
/* Nonzero to inhibit use of define_optimization peephole opts. */
|
|||
|
|
|
|||
|
|
extern int flag_no_peephole;
|
|||
|
|
|
|||
|
|
/* Nonzero means all references through pointers are volatile. */
|
|||
|
|
|
|||
|
|
extern int flag_volatile;
|
|||
|
|
|
|||
|
|
/* Nonzero means make functions that look like good inline candidates
|
|||
|
|
go inline. */
|
|||
|
|
|
|||
|
|
extern int flag_inline_functions;
|
|||
|
|
|
|||
|
|
/* Nonzero for -fkeep-inline-functions: even if we make a function
|
|||
|
|
go inline everywhere, keep its defintion around for debugging
|
|||
|
|
purposes. */
|
|||
|
|
|
|||
|
|
extern int flag_keep_inline_functions;
|
|||
|
|
|
|||
|
|
/* Nonzero if we are only using compiler to check syntax errors. */
|
|||
|
|
|
|||
|
|
extern int flag_syntax_only;
|
|||
|
|
|
|||
|
|
/* Nonzero means make the text shared if supported. */
|
|||
|
|
|
|||
|
|
extern int flag_shared_data;
|
|||
|
|
|
|||
|
|
/* Nonzero means put things in delayed-branch slots if supported. */
|
|||
|
|
|
|||
|
|
extern int flag_delayed_branch;
|
|||
|
|
|
|||
|
|
/* Nonzero means do basic-block instruction scheduling. */
|
|||
|
|
|
|||
|
|
extern int flag_schedule_insns;
|
|||
|
|
|
|||
|
|
/* Other basic status info about current function. */
|
|||
|
|
|
|||
|
|
/* Nonzero means current function must be given a frame pointer.
|
|||
|
|
Set in stmt.c if anything is allocated on the stack there.
|
|||
|
|
Set in reload1.c if anything is allocated on the stack there. */
|
|||
|
|
|
|||
|
|
extern int frame_pointer_needed;
|
|||
|
|
|
|||
|
|
/* Nonzero if function being compiled receives nonlocal gotos
|
|||
|
|
from nested functions. */
|
|||
|
|
|
|||
|
|
extern int current_function_has_nonlocal_label;
|