/* Compilation switch flag definitions for GCC.
- Copyright (C) 1987, 1988, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002,
- 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
- Free Software Foundation, Inc.
+ Copyright (C) 1987-2021 Free Software Foundation, Inc.
This file is part of GCC.
#ifndef GCC_FLAGS_H
#define GCC_FLAGS_H
-#include "coretypes.h"
-#include "flag-types.h"
-#include "options.h"
-
#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)
-/* Specify which kind of debugging info to generate. */
-extern enum debug_info_type write_symbols;
+/* Names of fundamental debug info formats indexed by enum
+ debug_info_type. */
-/* Names of debug_info_type, for error messages. */
extern const char *const debug_type_names[];
-/* Specify how much debugging info to generate. */
-extern enum debug_info_level debug_info_level;
+/* Get enum debug_info_type of the specified debug format, for error messages.
+ Can be used only for individual debug format types. */
-extern bool should_emit_struct_debug (tree type_decl, enum debug_info_usage);
-extern void set_struct_debug_option (const char *value);
+extern enum debug_info_type debug_set_to_format (uint32_t debug_info_set);
-/* Nonzero means use GNU-only extensions in the generated symbolic
- debugging information. */
-extern bool use_gnu_debug_info_extensions;
+/* Get the number of debug formats enabled for output. */
-/* Run the second compilation of -fcompare-debug. Not defined using
- Var in common.opt because this is used in Ada code and so must be
- an actual variable not a macro. */
-extern int flag_compare_debug;
+unsigned int debug_set_count (uint32_t w_symbols);
-/* Global visibility options. */
-extern struct visibility_flags visibility_options;
+/* Get the names of the debug formats enabled for output. */
-/* True if this is the LTO front end (lto1). This is used to disable
- gimple generation and lowering passes that are normally run on the
- output of a front end. These passes must be bypassed for lto since
- they have already been done before the gimple was written. */
+const char * debug_set_names (uint32_t w_symbols);
-extern bool in_lto_p;
+/* Return true iff BTF debug info is enabled. */
-/* Used to set the level of -Wstrict-aliasing in OPTS, when no level
- is specified. The external way to set the default level is to use
- -Wstrict-aliasing=level.
- ONOFF is assumed to take value 1 when -Wstrict-aliasing is specified,
- and 0 otherwise. After calling this function, wstrict_aliasing will be
- set to the default value of -Wstrict_aliasing=level. */
+extern bool btf_debuginfo_p ();
-extern void set_Wstrict_aliasing (struct gcc_options *opts, int onoff);
+/* Return true iff BTF with CO-RE debug info is enabled. */
-/* Nonzero for -dp: annotate the assembly with a comment describing the
- pattern and alternative used. */
+extern bool btf_with_core_debuginfo_p ();
-extern int flag_print_asm_name;
-\f
-/* Now the symbols that are set with `-f' switches. */
+/* Return true iff CTF debug info is enabled. */
-/* Nonzero if we are only using compiler to check syntax errors. */
+extern bool ctf_debuginfo_p ();
-extern int rtl_dump_and_exit;
+/* Return true iff DWARF2 debug info is enabled. */
-/* True if printing into -fdump-final-insns= dump. */
+extern bool dwarf_debuginfo_p ();
-extern bool final_insns_dump_p;
+/* Return true iff the debug info format is to be generated based on DWARF
+ DIEs (like CTF and BTF debug info formats). */
-/* Nonzero means make permerror produce warnings instead of errors. */
+extern bool dwarf_based_debuginfo_p ();
-extern int flag_permissive;
+extern void strip_off_ending (char *, int);
+extern int base_of_path (const char *path, const char **base_out);
-/* -dA causes debug information to be produced in
- the generated assembly code (to make it more readable). This option
- is generally only of use to those who actually need to read the
- generated assembly code (perhaps while debugging the compiler itself).
- Currently, this switch is only used by dwarfout.c; however, it is intended
- to be a catchall for printing debug information in the assembler file. */
+/* Return true iff flags are set as if -ffast-math. */
+extern bool fast_math_flags_set_p (const struct gcc_options *);
+extern bool fast_math_flags_struct_set_p (struct cl_optimization *);
-extern int flag_debug_asm;
+\f
+/* Now the symbols that are set with `-f' switches. */
-/* Generate code for GNU or NeXT Objective-C runtime environment. */
+/* True if printing into -fdump-final-insns= dump. */
-extern int flag_next_runtime;
+extern bool final_insns_dump_p;
-extern int flag_dump_rtl_in_asm;
\f
/* Other basic status info about current function. */
-/* Target-dependent global state. */
-struct target_flag_state {
- /* Values of the -falign-* flags: how much to align labels in code.
- 0 means `use default', 1 means `don't align'.
- For each variable, there is an _log variant which is the power
- of two not less than the variable, for .align output. */
- int x_align_loops_log;
- int x_align_loops_max_skip;
- int x_align_jumps_log;
- int x_align_jumps_max_skip;
- int x_align_labels_log;
- int x_align_labels_max_skip;
- int x_align_functions_log;
-
- /* The excess precision currently in effect. */
- enum excess_precision x_flag_excess_precision;
+class target_flag_state
+{
+public:
+ /* Each falign-foo can generate up to two levels of alignment:
+ -falign-foo=N:M[:N2:M2] */
+ align_flags x_align_loops;
+ align_flags x_align_jumps;
+ align_flags x_align_labels;
+ align_flags x_align_functions;
};
-extern struct target_flag_state default_target_flag_state;
+extern class target_flag_state default_target_flag_state;
#if SWITCHABLE_TARGET
-extern struct target_flag_state *this_target_flag_state;
+extern class target_flag_state *this_target_flag_state;
#else
#define this_target_flag_state (&default_target_flag_state)
#endif
-#define align_loops_log \
- (this_target_flag_state->x_align_loops_log)
-#define align_loops_max_skip \
- (this_target_flag_state->x_align_loops_max_skip)
-#define align_jumps_log \
- (this_target_flag_state->x_align_jumps_log)
-#define align_jumps_max_skip \
- (this_target_flag_state->x_align_jumps_max_skip)
-#define align_labels_log \
- (this_target_flag_state->x_align_labels_log)
-#define align_labels_max_skip \
- (this_target_flag_state->x_align_labels_max_skip)
-#define align_functions_log \
- (this_target_flag_state->x_align_functions_log)
-#define flag_excess_precision \
- (this_target_flag_state->x_flag_excess_precision)
-
-/* Nonzero if we dump in VCG format, not plain text. */
-extern int dump_for_graph;
-
-extern enum graph_dump_types graph_dump_format;
-
-extern enum stack_check_type flag_stack_check;
+#define align_loops (this_target_flag_state->x_align_loops)
+#define align_jumps (this_target_flag_state->x_align_jumps)
+#define align_labels (this_target_flag_state->x_align_labels)
+#define align_functions (this_target_flag_state->x_align_functions)
/* Returns TRUE if generated code should match ABI version N or
greater is in use. */
#define abi_version_at_least(N) \
(flag_abi_version == 0 || flag_abi_version >= (N))
-/* Return whether the function should be excluded from
- instrumentation. */
-extern bool flag_instrument_functions_exclude_p (tree fndecl);
-
-/* True if overflow wraps around for the given integral type. That
- is, TYPE_MAX + 1 == TYPE_MIN. */
-#define TYPE_OVERFLOW_WRAPS(TYPE) \
- (TYPE_UNSIGNED (TYPE) || flag_wrapv)
-
-/* True if overflow is undefined for the given integral type. We may
- optimize on the assumption that values in the type never overflow.
-
- IMPORTANT NOTE: Any optimization based on TYPE_OVERFLOW_UNDEFINED
- must issue a warning based on warn_strict_overflow. In some cases
- it will be appropriate to issue the warning immediately, and in
- other cases it will be appropriate to simply set a flag and let the
- caller decide whether a warning is appropriate or not. */
-#define TYPE_OVERFLOW_UNDEFINED(TYPE) \
- (!TYPE_UNSIGNED (TYPE) && !flag_wrapv && !flag_trapv && flag_strict_overflow)
-
-/* True if overflow for the given integral type should issue a
- trap. */
-#define TYPE_OVERFLOW_TRAPS(TYPE) \
- (!TYPE_UNSIGNED (TYPE) && flag_trapv)
-
-/* True if pointer types have undefined overflow. */
-#define POINTER_TYPE_OVERFLOW_UNDEFINED (flag_strict_overflow)
-
/* Whether to emit an overflow warning whose code is C. */
#define issue_strict_overflow_warning(c) (warn_strict_overflow >= (int) (c))
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