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wine/programs/winedbg/dbg.y
Eric Pouech 499cff6f26 Cleanup of dbghelp.h (and a couple of definition fixes). The 
displacements (in most of the functions) are not optional.
2005-01-31 11:34:59 +00:00

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%{
/*
* Parser for command lines in the Wine debugger
*
* Copyright 1993 Eric Youngdale
* Copyright 1995 Morten Welinder
* Copyright 2000 Eric Pouech
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "wine/exception.h"
#include "debugger.h"
#include "expr.h"
int yylex(void);
int yyerror(const char*);
%}
%union
{
struct dbg_lvalue lvalue;
char* string;
int integer;
IMAGEHLP_LINE listing;
struct expr* expression;
struct type_expr_t type;
}
%token tCONT tPASS tSTEP tLIST tNEXT tQUIT tHELP tBACKTRACE tALL tINFO tUP tDOWN
%token tENABLE tDISABLE tBREAK tWATCH tDELETE tSET tMODE tPRINT tEXAM tABORT tVM86
%token tCLASS tMAPS tSTACK tSEGMENTS tSYMBOL tREGS tWND tQUEUE tLOCAL tEXCEPTION
%token tPROCESS tTHREAD tMODREF tEOL tEOF
%token tFRAME tSHARE tCOND tDISPLAY tUNDISPLAY tDISASSEMBLE
%token tSTEPI tNEXTI tFINISH tSHOW tDIR tWHATIS tSOURCE
%token <string> tPATH tIDENTIFIER tSTRING tDEBUGSTR tINTVAR
%token <integer> tNUM tFORMAT
%token tSYMBOLFILE tRUN tATTACH tDETACH tNOPROCESS tMAINTENANCE tTYPE
%token tCHAR tSHORT tINT tLONG tFLOAT tDOUBLE tUNSIGNED tSIGNED
%token tSTRUCT tUNION tENUM
/* %left ',' */
/* %left '=' OP_OR_EQUAL OP_XOR_EQUAL OP_AND_EQUAL OP_SHL_EQUAL \
OP_SHR_EQUAL OP_PLUS_EQUAL OP_MINUS_EQUAL \
OP_TIMES_EQUAL OP_DIVIDE_EQUAL OP_MODULO_EQUAL */
/* %left OP_COND */ /* ... ? ... : ... */
%left OP_LOR
%left OP_LAND
%left '|'
%left '^'
%left '&'
%left OP_EQ OP_NE
%left '<' '>' OP_LE OP_GE
%left OP_SHL OP_SHR
%left '+' '-'
%left '*' '/' '%'
%left OP_SIGN '!' '~' OP_DEREF /* OP_INC OP_DEC OP_ADDR */
%left '.' '[' OP_DRF
%nonassoc ':'
%type <expression> expr lvalue
%type <lvalue> expr_lvalue lvalue_addr
%type <integer> expr_rvalue
%type <string> pathname identifier
%type <listing> list_arg
%type <type> type_expr
%%
input:
line
| input line
;
line:
command tEOL { expr_free_all(); }
| tEOL
| tEOF { return 1; }
| error tEOL { yyerrok; expr_free_all(); }
;
command:
tQUIT { return 1; }
| tHELP { print_help(); }
| tHELP tINFO { info_help(); }
| tPASS { dbg_wait_next_exception(DBG_EXCEPTION_NOT_HANDLED, 0, 0); }
| tCONT { dbg_wait_next_exception(DBG_CONTINUE, 1, dbg_exec_cont); }
| tCONT tNUM { dbg_wait_next_exception(DBG_CONTINUE, $2, dbg_exec_cont); }
| tSTEP { dbg_wait_next_exception(DBG_CONTINUE, 1, dbg_exec_step_into_line); }
| tSTEP tNUM { dbg_wait_next_exception(DBG_CONTINUE, $2, dbg_exec_step_into_line); }
| tNEXT { dbg_wait_next_exception(DBG_CONTINUE, 1, dbg_exec_step_over_line); }
| tNEXT tNUM { dbg_wait_next_exception(DBG_CONTINUE, $2, dbg_exec_step_over_line); }
| tSTEPI { dbg_wait_next_exception(DBG_CONTINUE, 1, dbg_exec_step_into_insn); }
| tSTEPI tNUM { dbg_wait_next_exception(DBG_CONTINUE, $2, dbg_exec_step_into_insn); }
| tNEXTI { dbg_wait_next_exception(DBG_CONTINUE, 1, dbg_exec_step_over_insn); }
| tNEXTI tNUM { dbg_wait_next_exception(DBG_CONTINUE, $2, dbg_exec_step_over_insn); }
| tFINISH { dbg_wait_next_exception(DBG_CONTINUE, 0, dbg_exec_finish); }
| tABORT { abort(); }
| tBACKTRACE { stack_backtrace(dbg_curr_tid, TRUE); }
| tBACKTRACE tNUM { stack_backtrace($2, TRUE); }
| tBACKTRACE tALL { stack_backtrace(-1, TRUE); }
| tUP { stack_set_frame(dbg_curr_frame + 1); }
| tUP tNUM { stack_set_frame(dbg_curr_frame + $2); }
| tDOWN { stack_set_frame(dbg_curr_frame - 1); }
| tDOWN tNUM { stack_set_frame(dbg_curr_frame - $2); }
| tFRAME tNUM { stack_set_frame($2); }
| tSHOW tDIR { source_show_path(); }
| tDIR pathname { source_add_path($2); }
| tDIR { source_nuke_path(); }
| tCOND tNUM { break_add_condition($2, NULL); }
| tCOND tNUM expr { break_add_condition($2, $3); }
| tSOURCE pathname { parser($2); }
| tSYMBOLFILE pathname { symbol_read_symtable($2, 0); }
| tSYMBOLFILE pathname expr_rvalue { symbol_read_symtable($2, $3); }
| tWHATIS expr_lvalue { types_print_type(&$2.type, FALSE); dbg_printf("\n"); }
| tATTACH tNUM { dbg_attach_debuggee($2, FALSE, TRUE); }
| tDETACH { dbg_detach_debuggee(); }
| run_command
| list_command
| disassemble_command
| set_command
| x_command
| print_command
| break_command
| watch_command
| display_command
| info_command
| maintenance_command
| noprocess_state
;
pathname:
identifier { $$ = $1; }
| tPATH { $$ = $1; }
;
identifier:
tIDENTIFIER { $$ = $1; }
| tIDENTIFIER '!' tIDENTIFIER { char* ptr = HeapAlloc(GetProcessHeap(), 0, strlen($1) + 1 + strlen($3) + 1);
sprintf(ptr, "%s!%s", $1, $3); $$ = lexeme_alloc(ptr);
HeapFree(GetProcessHeap(), 0, ptr); }
| identifier ':' ':' tIDENTIFIER { char* ptr = HeapAlloc(GetProcessHeap(), 0, strlen($1) + 2 + strlen($4) + 1);
sprintf(ptr, "%s::%s", $1, $4); $$ = lexeme_alloc(ptr);
HeapFree(GetProcessHeap(), 0, ptr); }
;
list_arg:
tNUM { $$.FileName = NULL; $$.LineNumber = $1; }
| pathname ':' tNUM { $$.FileName = $1; $$.LineNumber = $3; }
| identifier { symbol_get_line(NULL, $1, &$$); }
| pathname ':' identifier { symbol_get_line($3, $1, &$$); }
| '*' expr_lvalue { DWORD disp; $$.SizeOfStruct = sizeof($$);
SymGetLineFromAddr(dbg_curr_process->handle, (unsigned long)memory_to_linear_addr(& $2.addr), &disp, & $$); }
;
run_command:
tRUN { dbg_run_debuggee(NULL); }
| tRUN tSTRING { dbg_run_debuggee($2); }
;
list_command:
tLIST { source_list(NULL, NULL, 10); }
| tLIST '-' { source_list(NULL, NULL, -10); }
| tLIST list_arg { source_list(& $2, NULL, 10); }
| tLIST ',' list_arg { source_list(NULL, & $3, -10); }
| tLIST list_arg ',' list_arg { source_list(& $2, & $4, 0); }
;
disassemble_command:
tDISASSEMBLE { memory_disassemble(NULL, NULL, 10); }
| tDISASSEMBLE expr_lvalue { memory_disassemble(&$2, NULL, 10); }
| tDISASSEMBLE expr_lvalue ',' expr_lvalue { memory_disassemble(&$2, &$4, 0); }
;
set_command:
tSET lvalue_addr '=' expr_rvalue { memory_write_value(&$2, sizeof(int), &$4); }
| tSET '+' tIDENTIFIER { info_wine_dbg_channel(TRUE, NULL, $3); }
| tSET '-' tIDENTIFIER { info_wine_dbg_channel(FALSE, NULL, $3); }
| tSET tIDENTIFIER '+' tIDENTIFIER { info_wine_dbg_channel(TRUE, $2, $4); }
| tSET tIDENTIFIER '-' tIDENTIFIER { info_wine_dbg_channel(FALSE, $2, $4); }
;
x_command:
tEXAM expr_rvalue { memory_examine((void*)$2, 1, 'x'); }
| tEXAM tFORMAT expr_rvalue { memory_examine((void*)$3, $2 >> 8, $2 & 0xff); }
;
print_command:
tPRINT expr_lvalue { print_value(&$2, 0, 0); }
| tPRINT tFORMAT expr_lvalue { if (($2 >> 8) == 1) print_value(&$3, $2 & 0xff, 0); else dbg_printf("Count is meaningless in print command\n"); }
;
break_command:
tBREAK '*' expr_lvalue { break_add_break_from_lvalue(&$3); }
| tBREAK identifier { break_add_break_from_id($2, -1); }
| tBREAK identifier ':' tNUM { break_add_break_from_id($2, $4); }
| tBREAK tNUM { break_add_break_from_lineno($2); }
| tBREAK { break_add_break_from_lineno(-1); }
| tENABLE tNUM { break_enable_xpoint($2, TRUE); }
| tENABLE tBREAK tNUM { break_enable_xpoint($3, TRUE); }
| tDISABLE tNUM { break_enable_xpoint($2, FALSE); }
| tDISABLE tBREAK tNUM { break_enable_xpoint($3, FALSE); }
| tDELETE tNUM { break_delete_xpoint($2); }
| tDELETE tBREAK tNUM { break_delete_xpoint($3); }
;
watch_command:
tWATCH '*' expr_lvalue { break_add_watch_from_lvalue(&$3); }
| tWATCH identifier { break_add_watch_from_id($2); }
;
display_command:
tDISPLAY { display_print(); }
| tDISPLAY expr { display_add($2, 1, 0); }
| tDISPLAY tFORMAT expr { display_add($3, $2 >> 8, $2 & 0xff); }
| tENABLE tDISPLAY tNUM { display_enable($3, TRUE); }
| tDISABLE tDISPLAY tNUM { display_enable($3, FALSE); }
| tDELETE tDISPLAY tNUM { display_delete($3); }
| tDELETE tDISPLAY { display_delete(-1); }
| tUNDISPLAY tNUM { display_delete($2); }
| tUNDISPLAY { display_delete(-1); }
;
info_command:
tINFO tBREAK { break_info(); }
| tINFO tSHARE { info_win32_module(0); }
| tINFO tSHARE expr_rvalue { info_win32_module($3); }
| tINFO tREGS { be_cpu->print_context(dbg_curr_thread->handle, &dbg_context); }
| tINFO tSEGMENTS expr_rvalue { info_win32_segments($3, 1); }
| tINFO tSEGMENTS { info_win32_segments(0, -1); }
| tINFO tSTACK { stack_info(); }
| tINFO tSYMBOL tSTRING { symbol_info($3); }
| tINFO tLOCAL { symbol_info_locals(); }
| tINFO tDISPLAY { display_info(); }
| tINFO tCLASS { info_win32_class(NULL, NULL); }
| tINFO tCLASS tSTRING { info_win32_class(NULL, $3); }
| tINFO tWND { info_win32_window(NULL, FALSE); }
| tINFO tWND expr_rvalue { info_win32_window((HWND)$3, FALSE); }
| tINFO '*' tWND { info_win32_window(NULL, TRUE); }
| tINFO '*' tWND expr_rvalue { info_win32_window((HWND)$4, TRUE); }
| tINFO tPROCESS { info_win32_processes(); }
| tINFO tTHREAD { info_win32_threads(); }
| tINFO tEXCEPTION { info_win32_exceptions(dbg_curr_tid); }
| tINFO tEXCEPTION expr_rvalue { info_win32_exceptions($3); }
| tINFO tMAPS { info_win32_virtual(dbg_curr_pid); }
| tINFO tMAPS expr_rvalue { info_win32_virtual($3); }
;
maintenance_command:
tMAINTENANCE tTYPE { print_types(); }
;
noprocess_state:
tNOPROCESS {} /* <CR> shall not barf anything */
| tNOPROCESS tBACKTRACE tALL { stack_backtrace(-1, TRUE); } /* can backtrace all threads with no attached process */
| tNOPROCESS tSTRING { dbg_printf("No process loaded, cannot execute '%s'\n", $2); }
;
type_expr:
tCHAR { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_char; }
| tINT { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_signed_int; }
| tLONG tINT { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_signed_long_int; }
| tLONG { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_signed_long_int; }
| tUNSIGNED tINT { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_unsigned_int; }
| tUNSIGNED { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_unsigned_int; }
| tLONG tUNSIGNED tINT { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_unsigned_long_int; }
| tLONG tUNSIGNED { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_unsigned_long_int; }
| tSHORT tINT { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_signed_short_int; }
| tSHORT { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_signed_short_int; }
| tSHORT tUNSIGNED tINT { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_unsigned_short_int; }
| tSHORT tUNSIGNED { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_unsigned_short_int; }
| tSIGNED tCHAR { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_signed_char_int; }
| tUNSIGNED tCHAR { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_unsigned_char_int; }
| tLONG tLONG tUNSIGNED tINT{ $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_unsigned_longlong_int; }
| tLONG tLONG tUNSIGNED { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_unsigned_longlong_int; }
| tLONG tLONG tINT { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_signed_longlong_int; }
| tLONG tLONG { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_signed_longlong_int; }
| tFLOAT { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_short_real; }
| tDOUBLE { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_real; }
| tLONG tDOUBLE { $$.type = type_expr_type_id; $$.deref_count = 0; $$.u.type.module = 0; $$.u.type.id = dbg_itype_long_real; }
| type_expr '*' { $$ = $1; $$.deref_count++; }
| tCLASS identifier { $$.type = type_expr_udt_class; $$.deref_count = 0; $$.u.name = lexeme_alloc($2); }
| tSTRUCT identifier { $$.type = type_expr_udt_struct; $$.deref_count = 0; $$.u.name = lexeme_alloc($2); }
| tUNION identifier { $$.type = type_expr_udt_union; $$.deref_count = 0; $$.u.name = lexeme_alloc($2); }
| tENUM identifier { $$.type = type_expr_enumeration; $$.deref_count = 0; $$.u.name = lexeme_alloc($2); }
;
expr_lvalue:
expr { $$ = expr_eval($1); }
;
expr_rvalue:
expr_lvalue { $$ = types_extract_as_integer(&$1); }
;
/*
* The expr rule builds an expression tree. When we are done, we call
* EvalExpr to evaluate the value of the expression. The advantage of
* the two-step approach is that it is possible to save expressions for
* use in 'display' commands, and in conditional watchpoints.
*/
expr:
tNUM { $$ = expr_alloc_sconstant($1); }
| tSTRING { $$ = expr_alloc_string($1); }
| tINTVAR { $$ = expr_alloc_internal_var($1); }
| identifier { $$ = expr_alloc_symbol($1); }
| expr OP_DRF tIDENTIFIER { $$ = expr_alloc_pstruct($1, $3); }
| expr '.' tIDENTIFIER { $$ = expr_alloc_struct($1, $3); }
| identifier '(' ')' { $$ = expr_alloc_func_call($1, 0); }
| identifier '(' expr ')' { $$ = expr_alloc_func_call($1, 1, $3); }
| identifier '(' expr ',' expr ')' { $$ = expr_alloc_func_call($1, 2, $3, $5); }
| identifier '(' expr ',' expr ',' expr ')' { $$ = expr_alloc_func_call($1, 3, $3, $5, $7); }
| identifier '(' expr ',' expr ',' expr ',' expr ')' { $$ = expr_alloc_func_call($1, 4, $3, $5, $7, $9); }
| identifier '(' expr ',' expr ',' expr ',' expr ',' expr ')' { $$ = expr_alloc_func_call($1, 5, $3, $5, $7, $9, $11); }
| expr '[' expr ']' { $$ = expr_alloc_binary_op(EXP_OP_ARR, $1, $3); }
| expr ':' expr { $$ = expr_alloc_binary_op(EXP_OP_SEG, $1, $3); }
| expr OP_LOR expr { $$ = expr_alloc_binary_op(EXP_OP_LOR, $1, $3); }
| expr OP_LAND expr { $$ = expr_alloc_binary_op(EXP_OP_LAND, $1, $3); }
| expr '|' expr { $$ = expr_alloc_binary_op(EXP_OP_OR, $1, $3); }
| expr '&' expr { $$ = expr_alloc_binary_op(EXP_OP_AND, $1, $3); }
| expr '^' expr { $$ = expr_alloc_binary_op(EXP_OP_XOR, $1, $3); }
| expr OP_EQ expr { $$ = expr_alloc_binary_op(EXP_OP_EQ, $1, $3); }
| expr '>' expr { $$ = expr_alloc_binary_op(EXP_OP_GT, $1, $3); }
| expr '<' expr { $$ = expr_alloc_binary_op(EXP_OP_LT, $1, $3); }
| expr OP_GE expr { $$ = expr_alloc_binary_op(EXP_OP_GE, $1, $3); }
| expr OP_LE expr { $$ = expr_alloc_binary_op(EXP_OP_LE, $1, $3); }
| expr OP_NE expr { $$ = expr_alloc_binary_op(EXP_OP_NE, $1, $3); }
| expr OP_SHL expr { $$ = expr_alloc_binary_op(EXP_OP_SHL, $1, $3); }
| expr OP_SHR expr { $$ = expr_alloc_binary_op(EXP_OP_SHR, $1, $3); }
| expr '+' expr { $$ = expr_alloc_binary_op(EXP_OP_ADD, $1, $3); }
| expr '-' expr { $$ = expr_alloc_binary_op(EXP_OP_SUB, $1, $3); }
| expr '*' expr { $$ = expr_alloc_binary_op(EXP_OP_MUL, $1, $3); }
| expr '/' expr { $$ = expr_alloc_binary_op(EXP_OP_DIV, $1, $3); }
| expr '%' expr { $$ = expr_alloc_binary_op(EXP_OP_REM, $1, $3); }
| '-' expr %prec OP_SIGN { $$ = expr_alloc_unary_op(EXP_OP_NEG, $2); }
| '+' expr %prec OP_SIGN { $$ = $2; }
| '!' expr { $$ = expr_alloc_unary_op(EXP_OP_NOT, $2); }
| '~' expr { $$ = expr_alloc_unary_op(EXP_OP_LNOT, $2); }
| '(' expr ')' { $$ = $2; }
| '*' expr %prec OP_DEREF { $$ = expr_alloc_unary_op(EXP_OP_DEREF, $2); }
| '&' expr %prec OP_DEREF { $$ = expr_alloc_unary_op(EXP_OP_ADDR, $2); }
| '(' type_expr ')' expr %prec OP_DEREF { $$ = expr_alloc_typecast(&$2, $4); }
;
/*
* The lvalue rule builds an expression tree. This is a limited form
* of expression that is suitable to be used as an lvalue.
*/
lvalue_addr:
lvalue { $$ = expr_eval($1); }
;
lvalue: tNUM { $$ = expr_alloc_sconstant($1); }
| tINTVAR { $$ = expr_alloc_internal_var($1); }
| identifier { $$ = expr_alloc_symbol($1); }
| lvalue OP_DRF tIDENTIFIER { $$ = expr_alloc_pstruct($1, $3); }
| lvalue '.' tIDENTIFIER { $$ = expr_alloc_struct($1, $3); }
| lvalue '[' expr ']' { $$ = expr_alloc_binary_op(EXP_OP_ARR, $1, $3); }
| '*' expr { $$ = expr_alloc_unary_op(EXP_OP_FORCE_DEREF, $2); }
;
%%
static WINE_EXCEPTION_FILTER(wine_dbg_cmd)
{
switch (GetExceptionCode())
{
case DEBUG_STATUS_INTERNAL_ERROR:
dbg_printf("\nWineDbg internal error\n");
break;
case DEBUG_STATUS_NO_SYMBOL:
dbg_printf("\nUndefined symbol\n");
break;
case DEBUG_STATUS_DIV_BY_ZERO:
dbg_printf("\nDivision by zero\n");
break;
case DEBUG_STATUS_BAD_TYPE:
dbg_printf("\nNo type or type mismatch\n");
break;
case DEBUG_STATUS_NO_FIELD:
dbg_printf("\nNo such field in structure or union\n");
break;
case DEBUG_STATUS_CANT_DEREF:
dbg_printf("\nDereference failed (not a pointer, or out of array bounds)\n");
break;
case DEBUG_STATUS_ABORT:
break;
case DEBUG_STATUS_NOT_AN_INTEGER:
dbg_printf("\nNeeding an integral value\n");
break;
case CONTROL_C_EXIT:
/* this is generally sent by a ctrl-c when we run winedbg outside of wineconsole */
/* stop the debuggee, and continue debugger execution, we will be reentered by the
* debug events generated by stopping
*/
dbg_interrupt_debuggee();
return EXCEPTION_CONTINUE_EXECUTION;
default:
dbg_printf("\nException %lx\n", GetExceptionCode());
break;
}
return EXCEPTION_EXECUTE_HANDLER;
}
#ifndef whitespace
#define whitespace(c) (((c) == ' ') || ((c) == '\t'))
#endif
/* Strip whitespace from the start and end of STRING. */
static void stripwhite(char *string)
{
int i, last;
for (i = 0; whitespace(string[i]); i++);
if (i) strcpy(string, string + i);
last = i = strlen(string) - 1;
if (string[last] == '\n') i--;
while (i > 0 && whitespace(string[i])) i--;
if (string[last] == '\n')
string[++i] = '\n';
string[++i] = '\0';
}
static HANDLE dbg_parser_input;
static HANDLE dbg_parser_output;
/* command passed in the command line arguments */
char *arg_command = NULL;
int input_fetch_entire_line(const char* pfx, char** line, size_t* alloc, BOOL check_nl)
{
char buf_line[256];
DWORD nread, nwritten;
size_t len;
if (arg_command) {
*line = arg_command;
arg_command = "quit\n"; /* we only run one command before exiting */
return 1;
}
/* as of today, console handles can be file handles... so better use file APIs rather than
* console's
*/
WriteFile(dbg_parser_output, pfx, strlen(pfx), &nwritten, NULL);
len = 0;
do
{
if (!ReadFile(dbg_parser_input, buf_line, sizeof(buf_line) - 1, &nread, NULL) || nread == 0)
break;
buf_line[nread] = '\0';
if (check_nl && len == 0 && nread == 1 && buf_line[0] == '\n')
return 0;
/* store stuff at the end of last_line */
if (len + nread + 1 > *alloc)
{
while (len + nread + 1 > *alloc) *alloc *= 2;
*line = dbg_heap_realloc(*line, *alloc);
}
strcpy(*line + len, buf_line);
len += nread;
} while (nread == 0 || buf_line[nread - 1] != '\n');
if (!len)
{
*line = HeapReAlloc(GetProcessHeap(), 0, *line, *alloc = 1);
**line = '\0';
}
/* Remove leading and trailing whitespace from the line */
stripwhite(*line);
return 1;
}
int input_read_line(const char* pfx, char* buf, int size)
{
char* line = NULL;
size_t len = 0;
/* first alloc of our current buffer */
line = HeapAlloc(GetProcessHeap(), 0, len = 2);
assert(line);
line[0] = '\n';
line[1] = '\0';
input_fetch_entire_line(pfx, &line, &len, FALSE);
len = strlen(line);
/* remove trailing \n */
if (len > 0 && line[len - 1] == '\n') len--;
len = min(size - 1, len);
memcpy(buf, line, len);
buf[len] = '\0';
HeapFree(GetProcessHeap(), 0, line);
return 1;
}
/***********************************************************************
* parser
*
* Debugger command line parser
*/
void parser(const char* filename)
{
BOOL ret_ok;
HANDLE in_copy = dbg_parser_input;
HANDLE out_copy = dbg_parser_output;
#ifdef YYDEBUG
yydebug = 0;
#endif
ret_ok = FALSE;
if (filename)
{
HANDLE h = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0L, 0);
if (h == INVALID_HANDLE_VALUE) return;
dbg_parser_output = 0;
dbg_parser_input = h;
}
else
{
dbg_parser_output = GetStdHandle(STD_OUTPUT_HANDLE);
dbg_parser_input = GetStdHandle(STD_INPUT_HANDLE);
}
do
{
__TRY
{
ret_ok = TRUE;
yyparse();
}
__EXCEPT(wine_dbg_cmd)
{
ret_ok = FALSE;
}
__ENDTRY;
lexeme_flush();
} while (!ret_ok);
if (filename) CloseHandle(dbg_parser_input);
dbg_parser_input = in_copy;
dbg_parser_output = out_copy;
}
int yyerror(const char* s)
{
dbg_printf("%s\n", s);
return 0;
}
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