4c02c6d338
[CONFIGURATION] * NEW: 64 bits port. [EXAMPLES] * BUG: Fixed the AnalogWatch example. [WIKI CGI SCRIPT] * NEW: Some little cosmetic changes. [INTERPRETER] * NEW: The extern function implementation has been redesigned and is now based on libffi, so that it works on 64 bits system. Because of a flaw in the compiler design, projects that use the Pointer datatype must be recompiled to be used on a 64 bits system. This flaw will be fixed in Gambas 3. * OPT: Put some tables into read-only memory. About 1000 bytes are saved for each running interpreter, except the first one. * BUG: Does not crash anymore if a component cannot be loaded. * NEW: Spanish translation updated. * NEW: A new interpreter API for returning a pointer. [COMPILER] * BUG: Correctly compiles LONG constants inside code. [GB.DEBUG] * BUG: Compiles and links the gb.debug components with the thread libraries. [GB.DB.SQLITE3] * BUG: Getting the primary index of a table without primary index is safe now. [GB.GTK] * BUG: Modified the GLib priority of watched descriptors, as the main loop could enter in a loop in which user interface events were not managed. * BUG: Message boxes use application title without crashing now. [GB.OPENGL] * BUG: Disable dead code. [GB.QT.EXT] * BUG: TextEdit.TextWidth and TextEdit.TextHeight were not declared as read-only properties. [GB.XML.XSLT] * BUG: XSLT class is now declared as being not creatable. git-svn-id: svn://localhost/gambas/trunk@1006 867c0c6c-44f3-4631-809d-bfa615b0a4ec
355 lines
7.3 KiB
C
355 lines
7.3 KiB
C
/***************************************************************************
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debug.c
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debug routines
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(c) 2000-2007 Benoit Minisini <gambas@users.sourceforge.net>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 1, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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***************************************************************************/
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#define __GBX_DEBUG_C
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#include "gb_common.h"
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#include "gb_common_buffer.h"
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#include "gb_common_case.h"
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#include <stdarg.h>
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#include "gb_buffer.h"
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#include "gb_array.h"
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#include "gb_error.h"
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#include "gbx_exec.h"
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#include "gbx_api.h"
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#include "gbx_class.h"
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#include "gbx_c_array.h"
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#include "gbx_debug.h"
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DEBUG_INTERFACE DEBUG;
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DEBUG_INFO *DEBUG_info = NULL;
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static boolean calc_line_from_position(CLASS *class, FUNCTION *func, PCODE *addr, ushort *line)
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{
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int i;
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ushort pos = addr - func->code;
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ushort *post;
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if (func->debug)
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{
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post = func->debug->pos;
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for (i = 0; i < (func->debug->nline - 1); i++)
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{
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if (pos >= post[i] && pos < post[i + 1])
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{
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*line = i + func->debug->line;
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return FALSE;
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}
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}
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/*printf("pos = %d addr=%p func->code=%p\n", pos, addr, func->code);*/
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}
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return TRUE;
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}
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const char *DEBUG_get_position(CLASS *cp, FUNCTION *fp, PCODE *pc)
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{
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#if DEBUG_MEMORY
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static char buffer[256];
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#endif
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ushort line = 0;
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if (!cp || !pc)
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return "?";
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if (fp != NULL && fp->debug)
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calc_line_from_position(cp, fp, pc, &line);
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#if DEBUG_MEMORY
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snprintf(buffer, sizeof(buffer), "%s.%s.%d",
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cp ? cp->name : "?",
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(fp && fp->debug) ? fp->debug->name : "?",
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line);
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return buffer;
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#else
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snprintf(COMMON_buffer, COMMON_BUF_MAX, "%.64s.%.64s.%d",
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cp ? cp->name : "?",
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(fp && fp->debug) ? fp->debug->name : "?",
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line);
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return COMMON_buffer;
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#endif
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}
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const char *DEBUG_get_current_position(void)
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{
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return DEBUG_get_position(CP, FP, PC);
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}
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void DEBUG_init(void)
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{
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if (!EXEC_debug)
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return;
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COMPONENT_load(COMPONENT_create("gb.debug"));
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LIBRARY_get_interface_by_name("gb.debug", DEBUG_INTERFACE_VERSION, &DEBUG);
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DEBUG_info = DEBUG.Init((GB_DEBUG_INTERFACE *)(void *)GAMBAS_DebugApi, EXEC_fifo);
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if (!DEBUG_info)
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ERROR_panic("Cannot initializing debug mode");
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}
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void DEBUG_exit(void)
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{
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if (!EXEC_debug)
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return;
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DEBUG.Exit();
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}
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void DEBUG_where(void)
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{
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fprintf(stderr, "%s: ", DEBUG_get_current_position());
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}
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bool DEBUG_get_value(const char *sym, int len, GB_VARIANT *ret)
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{
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int i;
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VALUE value;
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LOCAL_SYMBOL *lp;
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GLOBAL_SYMBOL *gp;
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CLASS_VAR *var;
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char *addr;
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CLASS *class;
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if (DEBUG_info->fp)
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{
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for (i = 0; i < DEBUG_info->fp->debug->n_local; i++)
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{
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lp = &DEBUG_info->fp->debug->local[i];
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if (len == lp->sym.len && strncasecmp(sym, lp->sym.name, len) == 0)
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{
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value = DEBUG_info->bp[lp->value];
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goto __FOUND;
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}
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}
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}
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if (DEBUG_info->cp)
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{
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for (i = 0; i < DEBUG_info->cp->load->n_global; i++)
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{
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gp = &DEBUG_info->cp->load->global[i];
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if (len != gp->sym.len || strncasecmp(sym, gp->sym.name, len) != 0)
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continue;
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if (CTYPE_get_kind(gp->ctype) == TK_VARIABLE)
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{
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if (!CTYPE_is_static(gp->ctype) && DEBUG_info->op)
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{
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var = &DEBUG_info->cp->load->dyn[gp->value];
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addr = (char *)DEBUG_info->op + var->pos;
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}
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else
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{
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var = &DEBUG_info->cp->load->stat[gp->value];
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addr = (char *)DEBUG_info->cp->stat + var->pos;
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}
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VALUE_class_read(DEBUG_info->cp, &value, addr, var->type);
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goto __FOUND;
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}
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else if (CTYPE_get_kind(gp->ctype) == TK_CONST)
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{
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VALUE_class_constant(DEBUG_info->cp, &value, gp->value);
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goto __FOUND;
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}
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}
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}
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//class = CLASS_look_global(sym, len);
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class = CLASS_look(sym, len);
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if (class)
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{
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if (class->auto_create && class->instance)
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{
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value._object.class = class;
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value._object.object = class->instance;
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value._object.super = NULL;
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}
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else
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{
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value.type = T_CLASS;
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value._class.class = class;
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}
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goto __FOUND;
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}
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return TRUE;
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__FOUND:
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/*printf("%.*s =", (int)len, sym);
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print_value(&value);*/
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BORROW(&value);
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if (value.type == T_ARRAY)
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value._array.keep = TRUE;
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else
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VALUE_conv(&value, T_VARIANT);
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UNBORROW(&value);
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*((VALUE *)ret) = value;
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return FALSE;
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}
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int DEBUG_can_be_used_like_an_array(void *object, CLASS *class)
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{
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CLASS_DESC *desc;
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char type;
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int index;
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//fprintf(stderr, "DEBUG_can_be_used_like_an_array: %p %s ?\n", object, class->name);
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if (!object)
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return 0;
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if (class == CLASS_Class)
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{
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class = (CLASS *)object;
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object = NULL;
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CLASS_load(class);
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}
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index = class->special[SPEC_GET];
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if (index == NO_SYMBOL)
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{
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//fprintf(stderr, "No _get method\n");
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return 0;
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}
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desc = class->table[index].desc;
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if (desc->method.npmin != 1 || desc->method.npmax != 1 || *desc->method.signature != T_INTEGER)
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{
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//fprintf(stderr, "No _get(Arg AS Integer) method\n");
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return 0;
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}
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index = CLASS_find_symbol(class, "Count");
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if (index == NO_SYMBOL)
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{
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//fprintf(stderr, "No Count symbol\n");
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return 0;
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}
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desc = class->table[index].desc;
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type = CLASS_DESC_get_type(desc);
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if (type != 'r' && type != 'R')
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{
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//fprintf(stderr, "Count is not a read-only property\n");
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return 0;
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}
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if (desc->property.native)
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{
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if (EXEC_call_native(desc->property.read, object, desc->property.type, 0))
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{
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//fprintf(stderr, "Count has failed\n");
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return 0;
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}
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}
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else
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{
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EXEC.class = desc->property.class;
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EXEC.object = object;
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EXEC.drop = FALSE;
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EXEC.nparam = 0;
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EXEC.native = FALSE;
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EXEC.index = (int)(intptr_t)desc->property.read;
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//EXEC.func = &class->load->func[(int)desc->property.read];
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EXEC_function_keep();
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TEMP = *RP;
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UNBORROW(RP);
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RP->type = T_VOID;
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}
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VALUE_conv(&TEMP, GB_T_INTEGER);
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return TEMP._integer.value;
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}
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DEBUG_BACKTRACE *DEBUG_backtrace()
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{
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DEBUG_BACKTRACE *result;
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int i, n;
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STACK_CONTEXT *context;
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n = 1;
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for (i = 0; i < (STACK_frame_count - 1); i++)
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{
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context = &STACK_frame[i];
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if (!context->pc)
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continue;
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n++;
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}
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ARRAY_create(&result);
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ARRAY_add_many(&result, n);
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result[0].pc = PC;
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result[0].cp = CP;
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result[0].fp = FP;
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n = 0;
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for (i = 0; i < (STACK_frame_count - 1); i++)
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{
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context = &STACK_frame[i];
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if (!context->pc)
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continue;
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n++;
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result[n].pc = context->pc;
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result[n].cp = context->cp;
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result[n].fp = context->fp;
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}
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return result;
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}
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GB_ARRAY DEBUG_get_string_array_from_backtrace(DEBUG_BACKTRACE *bt)
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{
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GB_ARRAY array;
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int i, n;
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n = ARRAY_count(bt);
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GB_ArrayNew(&array, GB_T_STRING, n);
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for (i = 0; i < n; i++)
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STRING_new((char **)GB_ArrayGet(array, i), DEBUG_get_position(bt[i].cp, bt[i].fp, bt[i].pc), 0);
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return array;
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}
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