/* as.h - global header file Copyright (C) 1987 Free Software Foundation, Inc. This file is part of GAS, the GNU Assembler. GAS 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. GAS 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 GAS; see the file COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef AS_H_ #define AS_H_ #define _(String) (String) #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) /* * CAPITALISED names are #defined. * "lowercaseT" is a typedef of "lowercase" objects. * "lowercaseP" is type "pointer to object of type 'lowercase'". * "lowercaseS" is typedef struct ... lowercaseS. * * #define SUSPECT when debugging. * If TEST is #defined, then we are testing a module. */ /* These #defines are for parameters of entire assembler. */ /* * asserts() from <assert.h> are DISabled when NDEBUG is defined and * asserts() from <assert.h> are ENabled when NDEBUG is undefined. * For speed NDEBUG is defined so assert()'s are left out. #undef NDEBUG */ #define NDEBUG /* * For speed SUSPECT is undefined. #define SUSPECT */ #undef SUSPECT /* These #imports are for type definitions etc. */ #include <stdint.h> #import <stdio.h> #import <assert.h> #import <mach/machine.h> /* These defines are potentially useful */ #undef FALSE #define FALSE (0) #undef TRUE #define TRUE (!FALSE) #define ASSERT assert #define BAD_CASE(value) \ { \ as_fatal ("Case value %d unexpected at line %d of file \"%s\"\n", \ value, __LINE__, __FILE__); \ } /* These are assembler-wide concepts */ /* FROM line 206 */ #ifdef BFD_ASSEMBLER extern bfd *stdoutput; typedef bfd_vma addressT; typedef bfd_signed_vma offsetT; #else /* These are 64-bit values so we can use 64-bit values with 32-bit targets. */ typedef uint64_t addressT; typedef int64_t offsetT; #endif #ifdef SUSPECT #define register /* no registers: helps debugging */ #define know(p) ASSERT(p) /* know() is less ugly than #ifdef SUSPECT/ */ /* assert()/#endif. */ #else #define know(p) /* know() checks are no-op.ed */ #endif /* FROM line 262 */ /* * This table describes the use of segments as EXPRESSION types. * * X_seg X_add_symbol X_subtract_symbol X_add_number * SEG_NONE no (legal) expression * SEG_BIG * > 32 bits const. * SEG_ABSOLUTE 0 * SEG_SECT * 0 * SEG_UNKNOWN * 0 * SEG_DIFFSECT 0 * 0 * * The blank fields MUST be 0, and are nugatory. * The '0' fields MAY be 0. The '*' fields MAY NOT be 0. * * SEG_BIG: A floating point number or an integer larger than 32 bits. * For a floating point number: * X_add_number is < 0 * The result is in the global variable generic_floating_point_number. * The value in X_add_number is -'c' where c is the character that * introduced the constant. e.g. "0f6.9" will have -'f' as a * X_add_number value. * For an integer larger than 32 bits: * X_add_number > 0 * The result is in the global variable generic_bignum. * The value in X_add_number is a count of how many littlenums it * took to represent the bignum. */ typedef enum { SEG_ABSOLUTE, /* absolute */ SEG_SECT, /* normal defined section */ SEG_DIFFSECT, /* difference between symbols in sections */ SEG_UNKNOWN, /* expression involving an undefined symbol */ SEG_NONE, /* no expression */ SEG_BIG /* bigger than 32 bits constant */ } segT; #define absolute_section SEG_ABSOLUTE /* FROM line 285 */ typedef int subsegT; /* Type of debugging information we should generate. We currently support stabs, ECOFF, and DWARF2. NOTE! This means debug information about the assembly source code itself and _not_ about possible debug information from a high-level language. This is especially relevant to DWARF2, since the compiler may emit line number directives that the assembler resolves. */ enum debug_info_type { DEBUG_UNSPECIFIED, DEBUG_NONE, DEBUG_STABS, DEBUG_ECOFF, DEBUG_DWARF, DEBUG_DWARF2 }; extern enum debug_info_type debug_type; /* * main program "as.c" (command arguments etc) */ /* ['x'] TRUE if "-x" seen. */ extern char flagseen[128]; /* name of emitted object file, argument to -o if specified */ extern char *out_file_name; typedef struct frag fragS; /* TRUE if -force_cpusubtype_ALL is specified */ extern int force_cpusubtype_ALL; /* set to the corresponding cpusubtype if -arch flag is specified */ extern cpu_subtype_t archflag_cpusubtype; extern char *specific_archflag; /* TRUE if the .subsections_via_symbols directive was seen */ int subsections_via_symbols; /* -I path options for .includes */ struct directory_stack { struct directory_stack *next; char *fname; }; extern struct directory_stack include_defaults[]; extern struct directory_stack *include; /* FROM 317 */ #define undefined_section SEG_UNKNOWN #include "expr.h" #include "write_object.h" /* STUFF from write.h */ /* This is the name of a fake symbol which will never appear in the assembler output. S_IS_LOCAL detects it because of the \001. */ #ifndef FAKE_LABEL_NAME #define FAKE_LABEL_NAME "L0\001" #endif #ifdef __GNUC__ #define as_bad_where(MY_FILE, MY_LINE, ...) \ do { \ layout_file = MY_FILE; \ layout_line = MY_LINE; \ as_bad (__VA_ARGS__); \ } while (0) #endif /* FROM 317 */ #define undefined_section SEG_UNKNOWN /* non-NULL if AS_SECURE_LOG_FILE is set */ extern const char *secure_log_file; #ifndef OCTETS_PER_BYTE_POWER #define OCTETS_PER_BYTE_POWER 0 #endif #ifndef OCTETS_PER_BYTE #define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER) #endif #if OCTETS_PER_BYTE != (1<<OCTETS_PER_BYTE_POWER) #error "Octets per byte conflicts with its power-of-two definition!" #endif #endif /* AS_H_ */