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author | Fred Fish <fnf@specifix.com> | 1992-12-09 06:50:30 +0000 |
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committer | Fred Fish <fnf@specifix.com> | 1992-12-09 06:50:30 +0000 |
commit | 22e3975901f39f8e3abbd0ad089e8b4ed50acf7f (patch) | |
tree | cc9a841648447da5517e6ba0519ae17e8f566186 /gdb/c-exp.y | |
parent | 160be0ded9bb9a7ff6287c3b7094327465085874 (diff) | |
download | gdb-22e3975901f39f8e3abbd0ad089e8b4ed50acf7f.zip gdb-22e3975901f39f8e3abbd0ad089e8b4ed50acf7f.tar.gz gdb-22e3975901f39f8e3abbd0ad089e8b4ed50acf7f.tar.bz2 |
* c-exp.y, m2-exp.y: Migrate code that has nothing to do with
expression parsing into c-lang.c and m2-lang.c respectively.
* c-lang.c, m2-lang.c: New files, code migrated from c-exp.y and
m2-exp.y respectively.
* c-lang.h, m2-lang.h: New files, internal interfaces between c-*
and m2-* files respectively.
* Makefile.in (SFILES_MAINDIR): Add c-lang.c, m2-lang.c.
* Makefile.in (HFILES): Add c-lang.h, m2-lang.h.
* Makefile.in (OBS): Add c-lang.o, m2-lang.o.
* expression.h (struct block): Forward declaration for prototypes.
* language.h (struct objfile): Forward declaration for prototypes.
**** start-sanitize-chill ****
* Makefile.in (SFILES_MAINDIR): Add ch-lang.c.
* Makefile.in (HFILES): Add ch-lang.h.
* Makefile.in (OBS): Add ch-lang.o.
* ch-exp.y: Migrate code that has nothing to do with expression
parsing into ch-lang.c.
* ch-lang.c: New file, code migrated from c-exp.y.
* ch-lang.h: New file, internal interface between ch-* files.
**** end-sanitize-chill ****
Diffstat (limited to 'gdb/c-exp.y')
-rw-r--r-- | gdb/c-exp.y | 511 |
1 files changed, 1 insertions, 510 deletions
diff --git a/gdb/c-exp.y b/gdb/c-exp.y index 25567a7..5274118 100644 --- a/gdb/c-exp.y +++ b/gdb/c-exp.y @@ -36,19 +36,12 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ %{ -#include <stdio.h> -#include <string.h> #include "defs.h" -#include "symtab.h" -#include "gdbtypes.h" -#include "frame.h" #include "expression.h" #include "parser-defs.h" #include "value.h" #include "language.h" -#include "bfd.h" -#include "symfile.h" -#include "objfiles.h" +#include "c-lang.h" /* These MUST be included in any grammar file!!!! Please choose unique names! Note that this are a combined list of variables that can be produced @@ -1508,505 +1501,3 @@ yyerror (msg) { error (msg ? msg : "Invalid syntax in expression."); } - -/* Print the character C on STREAM as part of the contents of a literal - string whose delimiter is QUOTER. Note that that format for printing - characters and strings is language specific. */ - -static void -emit_char (c, stream, quoter) - register int c; - FILE *stream; - int quoter; -{ - - c &= 0xFF; /* Avoid sign bit follies */ - - if (PRINT_LITERAL_FORM (c)) - { - if (c == '\\' || c == quoter) - { - fputs_filtered ("\\", stream); - } - fprintf_filtered (stream, "%c", c); - } - else - { - switch (c) - { - case '\n': - fputs_filtered ("\\n", stream); - break; - case '\b': - fputs_filtered ("\\b", stream); - break; - case '\t': - fputs_filtered ("\\t", stream); - break; - case '\f': - fputs_filtered ("\\f", stream); - break; - case '\r': - fputs_filtered ("\\r", stream); - break; - case '\033': - fputs_filtered ("\\e", stream); - break; - case '\007': - fputs_filtered ("\\a", stream); - break; - default: - fprintf_filtered (stream, "\\%.3o", (unsigned int) c); - break; - } - } -} - -static void -c_printchar (c, stream) - int c; - FILE *stream; -{ - fputs_filtered ("'", stream); - emit_char (c, stream, '\''); - fputs_filtered ("'", stream); -} - -/* Print the character string STRING, printing at most LENGTH characters. - Printing stops early if the number hits print_max; repeat counts - are printed as appropriate. Print ellipses at the end if we - had to stop before printing LENGTH characters, or if FORCE_ELLIPSES. */ - -static void -c_printstr (stream, string, length, force_ellipses) - FILE *stream; - char *string; - unsigned int length; - int force_ellipses; -{ - register unsigned int i; - unsigned int things_printed = 0; - int in_quotes = 0; - int need_comma = 0; - extern int inspect_it; - extern int repeat_count_threshold; - extern int print_max; - - if (length == 0) - { - fputs_filtered ("\"\"", stdout); - return; - } - - for (i = 0; i < length && things_printed < print_max; ++i) - { - /* Position of the character we are examining - to see whether it is repeated. */ - unsigned int rep1; - /* Number of repetitions we have detected so far. */ - unsigned int reps; - - QUIT; - - if (need_comma) - { - fputs_filtered (", ", stream); - need_comma = 0; - } - - rep1 = i + 1; - reps = 1; - while (rep1 < length && string[rep1] == string[i]) - { - ++rep1; - ++reps; - } - - if (reps > repeat_count_threshold) - { - if (in_quotes) - { - if (inspect_it) - fputs_filtered ("\\\", ", stream); - else - fputs_filtered ("\", ", stream); - in_quotes = 0; - } - c_printchar (string[i], stream); - fprintf_filtered (stream, " <repeats %u times>", reps); - i = rep1 - 1; - things_printed += repeat_count_threshold; - need_comma = 1; - } - else - { - if (!in_quotes) - { - if (inspect_it) - fputs_filtered ("\\\"", stream); - else - fputs_filtered ("\"", stream); - in_quotes = 1; - } - emit_char (string[i], stream, '"'); - ++things_printed; - } - } - - /* Terminate the quotes if necessary. */ - if (in_quotes) - { - if (inspect_it) - fputs_filtered ("\\\"", stream); - else - fputs_filtered ("\"", stream); - } - - if (force_ellipses || i < length) - fputs_filtered ("...", stream); -} - -/* Create a fundamental C type using default reasonable for the current - target machine. - - Some object/debugging file formats (DWARF version 1, COFF, etc) do not - define fundamental types such as "int" or "double". Others (stabs or - DWARF version 2, etc) do define fundamental types. For the formats which - don't provide fundamental types, gdb can create such types using this - function. - - FIXME: Some compilers distinguish explicitly signed integral types - (signed short, signed int, signed long) from "regular" integral types - (short, int, long) in the debugging information. There is some dis- - agreement as to how useful this feature is. In particular, gcc does - not support this. Also, only some debugging formats allow the - distinction to be passed on to a debugger. For now, we always just - use "short", "int", or "long" as the type name, for both the implicit - and explicitly signed types. This also makes life easier for the - gdb test suite since we don't have to account for the differences - in output depending upon what the compiler and debugging format - support. We will probably have to re-examine the issue when gdb - starts taking it's fundamental type information directly from the - debugging information supplied by the compiler. fnf@cygnus.com */ - -static struct type * -c_create_fundamental_type (objfile, typeid) - struct objfile *objfile; - int typeid; -{ - register struct type *type = NULL; - register int nbytes; - - switch (typeid) - { - default: - /* FIXME: For now, if we are asked to produce a type not in this - language, create the equivalent of a C integer type with the - name "<?type?>". When all the dust settles from the type - reconstruction work, this should probably become an error. */ - type = init_type (TYPE_CODE_INT, - TARGET_INT_BIT / TARGET_CHAR_BIT, - 0, "<?type?>", objfile); - warning ("internal error: no C/C++ fundamental type %d", typeid); - break; - case FT_VOID: - type = init_type (TYPE_CODE_VOID, - TARGET_CHAR_BIT / TARGET_CHAR_BIT, - 0, "void", objfile); - break; - case FT_CHAR: - type = init_type (TYPE_CODE_INT, - TARGET_CHAR_BIT / TARGET_CHAR_BIT, - 0, "char", objfile); - break; - case FT_SIGNED_CHAR: - type = init_type (TYPE_CODE_INT, - TARGET_CHAR_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_SIGNED, "signed char", objfile); - break; - case FT_UNSIGNED_CHAR: - type = init_type (TYPE_CODE_INT, - TARGET_CHAR_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_UNSIGNED, "unsigned char", objfile); - break; - case FT_SHORT: - type = init_type (TYPE_CODE_INT, - TARGET_SHORT_BIT / TARGET_CHAR_BIT, - 0, "short", objfile); - break; - case FT_SIGNED_SHORT: - type = init_type (TYPE_CODE_INT, - TARGET_SHORT_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_SIGNED, "short", objfile); /* FIXME-fnf */ - break; - case FT_UNSIGNED_SHORT: - type = init_type (TYPE_CODE_INT, - TARGET_SHORT_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_UNSIGNED, "unsigned short", objfile); - break; - case FT_INTEGER: - type = init_type (TYPE_CODE_INT, - TARGET_INT_BIT / TARGET_CHAR_BIT, - 0, "int", objfile); - break; - case FT_SIGNED_INTEGER: - type = init_type (TYPE_CODE_INT, - TARGET_INT_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_SIGNED, "int", objfile); /* FIXME -fnf */ - break; - case FT_UNSIGNED_INTEGER: - type = init_type (TYPE_CODE_INT, - TARGET_INT_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_UNSIGNED, "unsigned int", objfile); - break; - case FT_LONG: - type = init_type (TYPE_CODE_INT, - TARGET_LONG_BIT / TARGET_CHAR_BIT, - 0, "long", objfile); - break; - case FT_SIGNED_LONG: - type = init_type (TYPE_CODE_INT, - TARGET_LONG_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_SIGNED, "long", objfile); /* FIXME -fnf */ - break; - case FT_UNSIGNED_LONG: - type = init_type (TYPE_CODE_INT, - TARGET_LONG_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_UNSIGNED, "unsigned long", objfile); - break; - case FT_LONG_LONG: - type = init_type (TYPE_CODE_INT, - TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, - 0, "long long", objfile); - break; - case FT_SIGNED_LONG_LONG: - type = init_type (TYPE_CODE_INT, - TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_SIGNED, "signed long long", objfile); - break; - case FT_UNSIGNED_LONG_LONG: - type = init_type (TYPE_CODE_INT, - TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_UNSIGNED, "unsigned long long", objfile); - break; - case FT_FLOAT: - type = init_type (TYPE_CODE_FLT, - TARGET_FLOAT_BIT / TARGET_CHAR_BIT, - 0, "float", objfile); - break; - case FT_DBL_PREC_FLOAT: - type = init_type (TYPE_CODE_FLT, - TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, - 0, "double", objfile); - break; - case FT_EXT_PREC_FLOAT: - type = init_type (TYPE_CODE_FLT, - TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT, - 0, "long double", objfile); - break; - } - return (type); -} - - -/* Table mapping opcodes into strings for printing operators - and precedences of the operators. */ - -const static struct op_print c_op_print_tab[] = - { - {",", BINOP_COMMA, PREC_COMMA, 0}, - {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, - {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, - {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, - {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0}, - {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0}, - {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0}, - {"==", BINOP_EQUAL, PREC_EQUAL, 0}, - {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0}, - {"<=", BINOP_LEQ, PREC_ORDER, 0}, - {">=", BINOP_GEQ, PREC_ORDER, 0}, - {">", BINOP_GTR, PREC_ORDER, 0}, - {"<", BINOP_LESS, PREC_ORDER, 0}, - {">>", BINOP_RSH, PREC_SHIFT, 0}, - {"<<", BINOP_LSH, PREC_SHIFT, 0}, - {"+", BINOP_ADD, PREC_ADD, 0}, - {"-", BINOP_SUB, PREC_ADD, 0}, - {"*", BINOP_MUL, PREC_MUL, 0}, - {"/", BINOP_DIV, PREC_MUL, 0}, - {"%", BINOP_REM, PREC_MUL, 0}, - {"@", BINOP_REPEAT, PREC_REPEAT, 0}, - {"-", UNOP_NEG, PREC_PREFIX, 0}, - {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, - {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0}, - {"*", UNOP_IND, PREC_PREFIX, 0}, - {"&", UNOP_ADDR, PREC_PREFIX, 0}, - {"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0}, - {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0}, - {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0}, - /* C++ */ - {"::", BINOP_SCOPE, PREC_PREFIX, 0}, - {NULL, 0, 0, 0} -}; - -/* These variables point to the objects - representing the predefined C data types. */ - -struct type *builtin_type_void; -struct type *builtin_type_char; -struct type *builtin_type_short; -struct type *builtin_type_int; -struct type *builtin_type_long; -struct type *builtin_type_long_long; -struct type *builtin_type_signed_char; -struct type *builtin_type_unsigned_char; -struct type *builtin_type_unsigned_short; -struct type *builtin_type_unsigned_int; -struct type *builtin_type_unsigned_long; -struct type *builtin_type_unsigned_long_long; -struct type *builtin_type_float; -struct type *builtin_type_double; -struct type *builtin_type_long_double; -struct type *builtin_type_complex; -struct type *builtin_type_double_complex; - -struct type ** const (c_builtin_types[]) = -{ - &builtin_type_int, - &builtin_type_long, - &builtin_type_short, - &builtin_type_char, - &builtin_type_float, - &builtin_type_double, - &builtin_type_void, - &builtin_type_long_long, - &builtin_type_signed_char, - &builtin_type_unsigned_char, - &builtin_type_unsigned_short, - &builtin_type_unsigned_int, - &builtin_type_unsigned_long, - &builtin_type_unsigned_long_long, - &builtin_type_long_double, - &builtin_type_complex, - &builtin_type_double_complex, - 0 -}; - -const struct language_defn c_language_defn = { - "c", /* Language name */ - language_c, - c_builtin_types, - range_check_off, - type_check_off, - c_parse, - c_error, - c_printchar, /* Print a character constant */ - c_printstr, /* Function to print string constant */ - c_create_fundamental_type, /* Create fundamental type in this language */ - &BUILTIN_TYPE_LONGEST, /* longest signed integral type */ - &BUILTIN_TYPE_UNSIGNED_LONGEST,/* longest unsigned integral type */ - &builtin_type_double, /* longest floating point type */ /*FIXME*/ - {"", "", "", ""}, /* Binary format info */ - {"0%o", "0", "o", ""}, /* Octal format info */ - {"%d", "", "d", ""}, /* Decimal format info */ - {"0x%x", "0x", "x", ""}, /* Hex format info */ - c_op_print_tab, /* expression operators for printing */ - LANG_MAGIC -}; - -const struct language_defn cplus_language_defn = { - "c++", /* Language name */ - language_cplus, - c_builtin_types, - range_check_off, - type_check_off, - c_parse, - c_error, - c_printchar, /* Print a character constant */ - c_printstr, /* Function to print string constant */ - c_create_fundamental_type, /* Create fundamental type in this language */ - &BUILTIN_TYPE_LONGEST, /* longest signed integral type */ - &BUILTIN_TYPE_UNSIGNED_LONGEST,/* longest unsigned integral type */ - &builtin_type_double, /* longest floating point type */ /*FIXME*/ - {"", "", "", ""}, /* Binary format info */ - {"0%o", "0", "o", ""}, /* Octal format info */ - {"%d", "", "d", ""}, /* Decimal format info */ - {"0x%x", "0x", "x", ""}, /* Hex format info */ - c_op_print_tab, /* expression operators for printing */ - LANG_MAGIC -}; - -void -_initialize_c_exp () -{ - builtin_type_void = - init_type (TYPE_CODE_VOID, 1, - 0, - "void", (struct objfile *) NULL); - builtin_type_char = - init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, - 0, - "char", (struct objfile *) NULL); - builtin_type_signed_char = - init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_SIGNED, - "signed char", (struct objfile *) NULL); - builtin_type_unsigned_char = - init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_UNSIGNED, - "unsigned char", (struct objfile *) NULL); - builtin_type_short = - init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT, - 0, - "short", (struct objfile *) NULL); - builtin_type_unsigned_short = - init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_UNSIGNED, - "unsigned short", (struct objfile *) NULL); - builtin_type_int = - init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, - 0, - "int", (struct objfile *) NULL); - builtin_type_unsigned_int = - init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_UNSIGNED, - "unsigned int", (struct objfile *) NULL); - builtin_type_long = - init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, - 0, - "long", (struct objfile *) NULL); - builtin_type_unsigned_long = - init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_UNSIGNED, - "unsigned long", (struct objfile *) NULL); - builtin_type_long_long = - init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, - 0, - "long long", (struct objfile *) NULL); - builtin_type_unsigned_long_long = - init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_UNSIGNED, - "unsigned long long", (struct objfile *) NULL); - builtin_type_float = - init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT, - 0, - "float", (struct objfile *) NULL); - builtin_type_double = - init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, - 0, - "double", (struct objfile *) NULL); - builtin_type_long_double = - init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT, - 0, - "long double", (struct objfile *) NULL); - builtin_type_complex = - init_type (TYPE_CODE_FLT, TARGET_COMPLEX_BIT / TARGET_CHAR_BIT, - 0, - "complex", (struct objfile *) NULL); - builtin_type_double_complex = - init_type (TYPE_CODE_FLT, TARGET_DOUBLE_COMPLEX_BIT / TARGET_CHAR_BIT, - 0, - "double complex", (struct objfile *) NULL); - - add_language (&c_language_defn); - add_language (&cplus_language_defn); -} |