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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/read-md.h | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/read-md.h')
-rw-r--r-- | gcc-4.9/gcc/read-md.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/read-md.h b/gcc-4.9/gcc/read-md.h new file mode 100644 index 000000000..be26bdd1a --- /dev/null +++ b/gcc-4.9/gcc/read-md.h @@ -0,0 +1,140 @@ +/* MD reader definitions. + Copyright (C) 1987-2014 Free Software Foundation, Inc. + +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 3, or (at your option) any later +version. + +GCC 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 GCC; see the file COPYING3. If not see +<http://www.gnu.org/licenses/>. */ + +#include "obstack.h" +#include "hashtab.h" + +/* Holds one symbol or number in the .md file. */ +struct md_name { + /* The name as it appeared in the .md file. Names are syntactically + limited to the length of this buffer. */ + char buffer[256]; + + /* The name that should actually be used by the generator programs. + This is an expansion of NAME, after things like constant substitution. */ + char *string; +}; + +/* This structure represents a constant defined by define_constant, + define_enum, or such-like. */ +struct md_constant { + /* The name of the constant. */ + char *name; + + /* The string to which the constants expands. */ + char *value; + + /* If the constant is associated with a enumeration, this field + points to that enumeration, otherwise it is null. */ + struct enum_type *parent_enum; +}; + +/* This structure represents one value in an enum_type. */ +struct enum_value { + /* The next value in the enum, or null if this is the last. */ + struct enum_value *next; + + /* The name of the value as it appears in the .md file. */ + char *name; + + /* The definition of the related C value. */ + struct md_constant *def; +}; + +/* This structure represents an enum defined by define_enum or the like. */ +struct enum_type { + /* The C name of the enumeration. */ + char *name; + + /* True if this is an md-style enum (DEFINE_ENUM) rather than + a C-style enum (DEFINE_C_ENUM). */ + bool md_p; + + /* The values of the enumeration. There is always at least one. */ + struct enum_value *values; + + /* A pointer to the null terminator in VALUES. */ + struct enum_value **tail_ptr; + + /* The number of enumeration values. */ + unsigned int num_values; +}; + +/* A callback that handles a single .md-file directive, up to but not + including the closing ')'. It takes two arguments: the line number on + which the directive started, and the name of the directive. The next + unread character is the optional space after the directive name. */ +typedef void (*directive_handler_t) (int, const char *); + +extern const char *in_fname; +extern FILE *read_md_file; +extern int read_md_lineno; +extern const char *read_md_filename; +extern struct obstack string_obstack; +extern void (*include_callback) (const char *); + +/* Read the next character from the MD file. */ + +static inline int +read_char (void) +{ + int ch; + + ch = getc (read_md_file); + if (ch == '\n') + read_md_lineno++; + return ch; +} + +/* Put back CH, which was the last character read from the MD file. */ + +static inline void +unread_char (int ch) +{ + if (ch == '\n') + read_md_lineno--; + ungetc (ch, read_md_file); +} + +extern hashval_t leading_string_hash (const void *); +extern int leading_string_eq_p (const void *, const void *); +extern void copy_md_ptr_loc (const void *, const void *); +extern void print_md_ptr_loc (const void *); +extern void fprint_md_ptr_loc (FILE *, const void *); +extern const char *join_c_conditions (const char *, const char *); +extern void print_c_condition (const char *); +extern void fprint_c_condition (FILE *, const char *); +extern void message_with_line (int, const char *, ...) ATTRIBUTE_PRINTF_2; +extern void error_with_line (int, const char *, ...) ATTRIBUTE_PRINTF_2; +extern void fatal_with_file_and_line (const char *, ...) + ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN; +extern void fatal_expected_char (int, int) ATTRIBUTE_NORETURN; +extern int read_skip_spaces (void); +extern void read_name (struct md_name *); +extern char *read_quoted_string (void); +extern char *read_string (int); +extern void read_skip_construct (int, int); +extern int n_comma_elts (const char *); +extern const char *scan_comma_elt (const char **); +extern void upcase_string (char *); +extern void traverse_md_constants (htab_trav, void *); +extern void traverse_enum_types (htab_trav, void *); +extern struct enum_type *lookup_enum_type (const char *); +extern bool read_md_files (int, char **, bool (*) (const char *), + directive_handler_t); |