316 lines
8.6 KiB
C
316 lines
8.6 KiB
C
/* Disassembly display.
|
|
Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
|
|
Contributed by Hewlett-Packard Company.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program 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 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
/* If we need <curses.h>, we must include it before we get "bfd.h". */
|
|
#include "config.h"
|
|
#ifdef HAVE_NCURSES_H
|
|
#include <ncurses.h>
|
|
#else
|
|
#ifdef HAVE_CURSES_H
|
|
#include <curses.h>
|
|
#endif
|
|
#endif
|
|
|
|
#include "defs.h"
|
|
#include "symtab.h"
|
|
#include "breakpoint.h"
|
|
#include "frame.h"
|
|
#include "value.h"
|
|
|
|
#include "tui.h"
|
|
#include "tuiData.h"
|
|
#include "tuiWin.h"
|
|
#include "tuiLayout.h"
|
|
#include "tuiSourceWin.h"
|
|
#include "tuiStack.h"
|
|
#include "tui-file.h"
|
|
|
|
|
|
/*****************************************
|
|
** STATIC LOCAL FUNCTIONS FORWARD DECLS **
|
|
******************************************/
|
|
|
|
static struct breakpoint *_hasBreak (CORE_ADDR);
|
|
|
|
|
|
/*****************************************
|
|
** PUBLIC FUNCTIONS **
|
|
******************************************/
|
|
|
|
/*
|
|
** tuiSetDisassemContent().
|
|
** Function to set the disassembly window's content.
|
|
*/
|
|
TuiStatus
|
|
tuiSetDisassemContent (struct symtab *s, CORE_ADDR startAddr)
|
|
{
|
|
TuiStatus ret = TUI_FAILURE;
|
|
struct ui_file *gdb_dis_out;
|
|
|
|
if (startAddr != 0)
|
|
{
|
|
register int i, desc;
|
|
|
|
if ((ret = tuiAllocSourceBuffer (disassemWin)) == TUI_SUCCESS)
|
|
{
|
|
register int offset = disassemWin->detail.sourceInfo.horizontalOffset;
|
|
register int threshold, curLine = 0, lineWidth, maxLines;
|
|
CORE_ADDR newpc, pc;
|
|
disassemble_info asmInfo;
|
|
TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
|
|
extern void strcat_address (CORE_ADDR, char *, int);
|
|
extern void strcat_address_numeric (CORE_ADDR, int, char *, int);
|
|
int curLen = 0;
|
|
int tab_len = tuiDefaultTabLen ();
|
|
|
|
maxLines = disassemWin->generic.height - 2; /* account for hilite */
|
|
lineWidth = disassemWin->generic.width - 1;
|
|
threshold = (lineWidth - 1) + offset;
|
|
|
|
/* now init the ui_file structure */
|
|
gdb_dis_out = tui_sfileopen (threshold);
|
|
|
|
asmInfo = tm_print_insn_info;
|
|
asmInfo.stream = gdb_dis_out;
|
|
|
|
disassemWin->detail.sourceInfo.startLineOrAddr.addr = startAddr;
|
|
|
|
/* Now construct each line */
|
|
for (curLine = 0, pc = startAddr; (curLine < maxLines);)
|
|
{
|
|
TuiWinElementPtr element = (TuiWinElementPtr) disassemWin->generic.content[curLine];
|
|
struct breakpoint *bp;
|
|
|
|
print_address (pc, gdb_dis_out);
|
|
|
|
curLen = strlen (tui_file_get_strbuf (gdb_dis_out));
|
|
i = curLen - ((curLen / tab_len) * tab_len);
|
|
|
|
/* adjust buffer length if necessary */
|
|
tui_file_adjust_strbuf ((tab_len - i > 0) ? (tab_len - i) : 0, gdb_dis_out);
|
|
|
|
/* Add spaces to make the instructions start onthe same column */
|
|
while (i < tab_len)
|
|
{
|
|
tui_file_get_strbuf (gdb_dis_out)[curLen] = ' ';
|
|
i++;
|
|
curLen++;
|
|
}
|
|
tui_file_get_strbuf (gdb_dis_out)[curLen] = '\0';
|
|
|
|
newpc = pc + ((*tm_print_insn) (pc, &asmInfo));
|
|
|
|
/* Now copy the line taking the offset into account */
|
|
if (strlen (tui_file_get_strbuf (gdb_dis_out)) > offset)
|
|
strcpy (element->whichElement.source.line,
|
|
&(tui_file_get_strbuf (gdb_dis_out)[offset]));
|
|
else
|
|
element->whichElement.source.line[0] = '\0';
|
|
element->whichElement.source.lineOrAddr.addr = pc;
|
|
element->whichElement.source.isExecPoint =
|
|
(pc == (CORE_ADDR) ((TuiWinElementPtr) locator->content[0])->whichElement.locator.addr);
|
|
bp = _hasBreak (pc);
|
|
element->whichElement.source.hasBreak =
|
|
(bp != (struct breakpoint *) NULL &&
|
|
(!element->whichElement.source.isExecPoint ||
|
|
(bp->disposition != disp_del || bp->hit_count <= 0)));
|
|
curLine++;
|
|
pc = newpc;
|
|
/* reset the buffer to empty */
|
|
tui_file_get_strbuf (gdb_dis_out)[0] = '\0';
|
|
}
|
|
ui_file_delete (gdb_dis_out);
|
|
gdb_dis_out = NULL;
|
|
disassemWin->generic.contentSize = curLine;
|
|
ret = TUI_SUCCESS;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
} /* tuiSetDisassemContent */
|
|
|
|
|
|
/*
|
|
** tuiShowDisassem().
|
|
** Function to display the disassembly window with disassembled code.
|
|
*/
|
|
void
|
|
tuiShowDisassem (CORE_ADDR startAddr)
|
|
{
|
|
struct symtab *s = find_pc_symtab (startAddr);
|
|
TuiWinInfoPtr winWithFocus = tuiWinWithFocus ();
|
|
TuiLineOrAddress val;
|
|
|
|
val.addr = startAddr;
|
|
tuiAddWinToLayout (DISASSEM_WIN);
|
|
tuiUpdateSourceWindow (disassemWin, s, val, FALSE);
|
|
/*
|
|
** if the focus was in the src win, put it in the asm win, if the
|
|
** source view isn't split
|
|
*/
|
|
if (currentLayout () != SRC_DISASSEM_COMMAND && winWithFocus == srcWin)
|
|
tuiSetWinFocusTo (disassemWin);
|
|
|
|
return;
|
|
} /* tuiShowDisassem */
|
|
|
|
|
|
/*
|
|
** tuiShowDisassemAndUpdateSource().
|
|
** Function to display the disassembly window.
|
|
*/
|
|
void
|
|
tuiShowDisassemAndUpdateSource (CORE_ADDR startAddr)
|
|
{
|
|
struct symtab_and_line sal;
|
|
|
|
tuiShowDisassem (startAddr);
|
|
if (currentLayout () == SRC_DISASSEM_COMMAND)
|
|
{
|
|
TuiLineOrAddress val;
|
|
TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
|
|
/*
|
|
** Update what is in the source window if it is displayed too,
|
|
** note that it follows what is in the disassembly window and visa-versa
|
|
*/
|
|
sal = find_pc_line (startAddr, 0);
|
|
val.lineNo = sal.line;
|
|
tuiUpdateSourceWindow (srcWin, sal.symtab, val, TRUE);
|
|
if (sal.symtab)
|
|
{
|
|
current_source_symtab = sal.symtab;
|
|
tuiUpdateLocatorFilename (sal.symtab->filename);
|
|
}
|
|
else
|
|
tuiUpdateLocatorFilename ("?");
|
|
}
|
|
|
|
return;
|
|
} /* tuiShowDisassemAndUpdateSource */
|
|
|
|
/*
|
|
** tuiGetBeginAsmAddress().
|
|
*/
|
|
CORE_ADDR
|
|
tuiGetBeginAsmAddress (void)
|
|
{
|
|
TuiGenWinInfoPtr locator;
|
|
TuiLocatorElementPtr element;
|
|
CORE_ADDR addr;
|
|
|
|
locator = locatorWinInfoPtr ();
|
|
element = &((TuiWinElementPtr) locator->content[0])->whichElement.locator;
|
|
|
|
if (element->addr == 0)
|
|
{
|
|
/*the target is not executing, because the pc is 0 */
|
|
|
|
addr = parse_and_eval_address ("main");
|
|
|
|
if (addr == 0)
|
|
addr = parse_and_eval_address ("MAIN");
|
|
|
|
}
|
|
else /* the target is executing */
|
|
addr = element->addr;
|
|
|
|
return addr;
|
|
} /* tuiGetBeginAsmAddress */
|
|
|
|
|
|
/*
|
|
** tuiVerticalDisassemScroll().
|
|
** Scroll the disassembly forward or backward vertically
|
|
*/
|
|
void
|
|
tuiVerticalDisassemScroll (TuiScrollDirection scrollDirection,
|
|
int numToScroll)
|
|
{
|
|
if (disassemWin->generic.content != (OpaquePtr) NULL)
|
|
{
|
|
CORE_ADDR pc, lowAddr;
|
|
TuiWinContent content;
|
|
struct symtab *s;
|
|
|
|
content = (TuiWinContent) disassemWin->generic.content;
|
|
if (current_source_symtab == (struct symtab *) NULL)
|
|
s = find_pc_symtab (selected_frame->pc);
|
|
else
|
|
s = current_source_symtab;
|
|
|
|
pc = content[0]->whichElement.source.lineOrAddr.addr;
|
|
if (find_pc_partial_function (pc, (char **) NULL, &lowAddr,
|
|
(CORE_ADDR) 0) == 0)
|
|
error ("No function contains program counter for selected frame.\n");
|
|
else
|
|
{
|
|
register int line = 0;
|
|
register CORE_ADDR newLow;
|
|
bfd_byte buffer[4];
|
|
TuiLineOrAddress val;
|
|
|
|
newLow = pc;
|
|
if (scrollDirection == FORWARD_SCROLL)
|
|
{
|
|
for (; line < numToScroll; line++)
|
|
newLow += sizeof (bfd_getb32 (buffer));
|
|
}
|
|
else
|
|
{
|
|
for (; newLow != 0 && line < numToScroll; line++)
|
|
newLow -= sizeof (bfd_getb32 (buffer));
|
|
}
|
|
val.addr = newLow;
|
|
tuiUpdateSourceWindowAsIs (disassemWin, s, val, FALSE);
|
|
}
|
|
}
|
|
|
|
return;
|
|
} /* tuiVerticalDisassemScroll */
|
|
|
|
|
|
|
|
/*****************************************
|
|
** STATIC LOCAL FUNCTIONS **
|
|
******************************************/
|
|
/*
|
|
** _hasBreak().
|
|
** Answer whether there is a break point at the input line in the
|
|
** source file indicated
|
|
*/
|
|
static struct breakpoint *
|
|
_hasBreak (CORE_ADDR addr)
|
|
{
|
|
struct breakpoint *bpWithBreak = (struct breakpoint *) NULL;
|
|
struct breakpoint *bp;
|
|
extern struct breakpoint *breakpoint_chain;
|
|
|
|
|
|
for (bp = breakpoint_chain;
|
|
(bp != (struct breakpoint *) NULL &&
|
|
bpWithBreak == (struct breakpoint *) NULL);
|
|
bp = bp->next)
|
|
if (addr == bp->address)
|
|
bpWithBreak = bp;
|
|
|
|
return bpWithBreak;
|
|
} /* _hasBreak */
|