X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gas%2Fexpr.h;h=32a16619b1d597fc0ec23fc70e423610cb866c5a;hb=9de8d8f1848f870605f4e94ffd9d2f1baa005c93;hp=c7b97da429464d426eea979c00b2bb49fd94cf31;hpb=fa803dc60f0bf01297674c41d001798e18ade4dc;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/expr.h b/gas/expr.h index c7b97da429..32a16619b1 100644 --- a/gas/expr.h +++ b/gas/expr.h @@ -1,5 +1,5 @@ /* expr.h -> header file for expr.c - Copyright (C) 1987, 1992, 1993 Free Software Foundation, Inc. + Copyright (C) 1987, 92-98, 1999 Free Software Foundation, Inc. This file is part of GAS, the GNU Assembler. @@ -14,8 +14,9 @@ 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. */ + along with GAS; see the file COPYING. If not, write to the Free + Software Foundation, 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. */ /* * By popular demand, we define a struct to represent an expression. @@ -48,6 +49,8 @@ typedef enum O_constant, /* X_add_symbol + X_add_number. */ O_symbol, + /* X_add_symbol + X_add_number - the base address of the image. */ + O_symbol_rva, /* A register (X_add_number is register number). */ O_register, /* A big value. If X_add_number is negative or 0, the value is in @@ -59,6 +62,8 @@ typedef enum O_uminus, /* (~ X_add_symbol) + X_add_number. */ O_bit_not, + /* (! X_add_symbol) + X_add_number. */ + O_logical_not, /* (X_add_symbol * X_op_symbol) + X_add_number. */ O_multiply, /* (X_add_symbol / X_op_symbol) + X_add_number. */ @@ -80,26 +85,45 @@ typedef enum /* X_add_symbol + X_op_symbol) + X_add_number. */ O_add, /* X_add_symbol - X_op_symbol) + X_add_number. */ - O_subtract + O_subtract, + /* (X_add_symbol == X_op_symbol) + X_add_number. */ + O_eq, + /* (X_add_symbol != X_op_symbol) + X_add_number. */ + O_ne, + /* (X_add_symbol < X_op_symbol) + X_add_number. */ + O_lt, + /* (X_add_symbol <= X_op_symbol) + X_add_number. */ + O_le, + /* (X_add_symbol >= X_op_symbol) + X_add_number. */ + O_ge, + /* (X_add_symbol > X_op_symbol) + X_add_number. */ + O_gt, + /* (X_add_symbol && X_op_symbol) + X_add_number. */ + O_logical_and, + /* (X_add_symbol || X_op_symbol) + X_add_number. */ + O_logical_or, + /* X_op_symbol [ X_add_symbol ] */ + O_index, + /* this must be the largest value */ + O_max } operatorT; typedef struct expressionS { - /* The type of the expression. */ - operatorT X_op; /* The main symbol. */ - struct symbol *X_add_symbol; + symbolS *X_add_symbol; /* The second symbol, if needed. */ - struct symbol *X_op_symbol; + symbolS *X_op_symbol; /* A number to add. */ offsetT X_add_number; + /* The type of the expression. */ + operatorT X_op; /* Non-zero if X_add_number should be regarded as unsigned. This is only valid for O_constant expressions. It is only used when an O_constant must be extended into a bignum (i.e., it is not used when performing arithmetic on these values). - FIXME: This field is not set very reliably. - If we ever need more flags here, we can make them bitfields. */ - int X_unsigned; + FIXME: This field is not set very reliably. */ + unsigned int X_unsigned : 1; } expressionS; /* "result" should be type (expressionS *). */ @@ -116,9 +140,18 @@ extern LITTLENUM_TYPE generic_bignum[]; typedef char operator_rankT; -char get_symbol_end PARAMS ((void)); -segT expr PARAMS ((int rank, expressionS * resultP)); -unsigned int get_single_number PARAMS ((void)); -symbolS *make_expr_symbol PARAMS ((expressionS * expressionP)); +extern char get_symbol_end PARAMS ((void)); +extern void expr_begin PARAMS ((void)); +extern void expr_set_precedence PARAMS ((void)); +extern segT expr PARAMS ((int rank, expressionS * resultP)); +extern unsigned int get_single_number PARAMS ((void)); +extern symbolS *make_expr_symbol PARAMS ((expressionS * expressionP)); +extern int expr_symbol_where + PARAMS ((symbolS *, char **, unsigned int *)); + +extern symbolS *expr_build_uconstant PARAMS ((offsetT)); +extern symbolS *expr_build_unary PARAMS ((operatorT, symbolS *)); +extern symbolS *expr_build_binary PARAMS ((operatorT, symbolS *, symbolS *)); +extern symbolS *expr_build_dot PARAMS ((void)); /* end of expr.h */