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/*
** tuiDisassem.c
** This module contains functions for handling disassembly display.
*/
#include "defs.h"
#include "symtab.h"
#include "breakpoint.h"
#include "frame.h"
#include "tui.h"
#include "tuiData.h"
#include "tuiLayout.h"
#include "tuiSourceWin.h"
#include "tuiStack.h"
/*****************************************
** STATIC LOCAL FUNCTIONS FORWARD DECLS **
******************************************/
static struct breakpoint *_hasBreak PARAMS ((CORE_ADDR));
/*****************************************
** PUBLIC FUNCTIONS **
******************************************/
/*
** tuiSetDisassemContent().
** Function to set the disassembly window's content.
*/
TuiStatus
#ifdef __STDC__
tuiSetDisassemContent (
struct symtab *s,
Opaque startAddr)
#else
tuiSetDisassemContent (s, startAddr)
struct symtab *s;
Opaque startAddr;
#endif
{
TuiStatus ret = TUI_FAILURE;
GDB_FILE *gdb_dis_out;
if (startAddr != (Opaque) NULL)
{
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 PARAMS ((CORE_ADDR, char *, int));
extern void strcat_address_numeric PARAMS ((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 gdb_file structure */
gdb_dis_out = gdb_file_init_astring (threshold);
INIT_DISASSEMBLE_INFO_NO_ARCH (asmInfo, gdb_dis_out, (fprintf_ftype) fprintf_filtered);
asmInfo.read_memory_func = dis_asm_read_memory;
asmInfo.memory_error_func = dis_asm_memory_error;
disassemWin->detail.sourceInfo.startLineOrAddr.addr = startAddr;
/* Now construct each line */
for (curLine = 0, pc = (CORE_ADDR) startAddr; (curLine < maxLines);)
{
TuiWinElementPtr element = (TuiWinElementPtr)disassemWin->generic.content[curLine];
struct breakpoint *bp;
print_address (pc, gdb_dis_out);
curLen = strlen (gdb_file_get_strbuf (gdb_dis_out));
i = curLen - ((curLen / tab_len) * tab_len);
/* adjust buffer length if necessary */
gdb_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)
{
gdb_file_get_strbuf (gdb_dis_out)[curLen] = ' ';
i++;
curLen++;
}
gdb_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 (gdb_file_get_strbuf (gdb_dis_out)) > offset)
strcpy (element->whichElement.source.line,
&(gdb_file_get_strbuf (gdb_dis_out)[offset]));
else
element->whichElement.source.line[0] = '\0';
element->whichElement.source.lineOrAddr.addr = (Opaque) 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 != del || bp->hit_count <= 0)));
curLine++;
pc = newpc;
/* reset the buffer to empty */
gdb_file_get_strbuf (gdb_dis_out)[0] = '\0';
}
gdb_file_deallocate (&gdb_dis_out);
disassemWin->generic.contentSize = curLine;
ret = TUI_SUCCESS;
}
}
return ret;
} /* tuiSetDisassemContent */
/*
** tuiShowDisassem().
** Function to display the disassembly window with disassembled code.
*/
void
#ifdef __STDC__
tuiShowDisassem (
Opaque startAddr)
#else
tuiShowDisassem (startAddr)
Opaque startAddr;
#endif
{
struct symtab *s = find_pc_symtab ((CORE_ADDR) startAddr);
TuiWinInfoPtr winWithFocus = tuiWinWithFocus ();
tuiAddWinToLayout (DISASSEM_WIN);
tuiUpdateSourceWindow (disassemWin, s, startAddr, 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
#ifdef __STDC__
tuiShowDisassemAndUpdateSource (
Opaque startAddr)
#else
tuiShowDisassemAndUpdateSource (startAddr)
Opaque startAddr;
#endif
{
struct symtab_and_line sal;
tuiShowDisassem (startAddr);
if (currentLayout () == SRC_DISASSEM_COMMAND)
{
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 ((CORE_ADDR) startAddr, 0);
current_source_symtab = sal.symtab;
tuiUpdateSourceWindow (srcWin, sal.symtab, (Opaque) sal.line, TRUE);
tuiUpdateLocatorFilename (sal.symtab->filename);
}
return;
} /* tuiShowDisassemAndUpdateSource */
/*
** tuiShowDisassemAsIs().
** Function to display the disassembly window. This function shows
** the disassembly as specified by the horizontal offset.
*/
void
#ifdef __STDC__
tuiShowDisassemAsIs (
Opaque addr)
#else
tuiShowDisassemAsIs (addr)
Opaque addr;
#endif
{
tuiAddWinToLayout (DISASSEM_WIN);
tuiUpdateSourceWindowAsIs (disassemWin, (struct symtab *) NULL, addr, FALSE);
/*
** Update what is in the source window if it is displayed too, not that it
** follows what is in the disassembly window and visa-versa
*/
if (currentLayout () == SRC_DISASSEM_COMMAND)
tuiShowSourceContent (srcWin); /*???? Need to do more? */
return;
} /* tuiShowDisassem */
/*
** tuiGetBeginAsmAddress().
*/
Opaque
#ifdef __STDC__
tuiGetBeginAsmAddress (void)
#else
tuiGetBeginAsmAddress ()
#endif
{
TuiGenWinInfoPtr locator;
TuiLocatorElementPtr element;
Opaque addr;
locator = locatorWinInfoPtr ();
element = &((TuiWinElementPtr) locator->content[0])->whichElement.locator;
if (element->addr == (Opaque) 0)
{
/*the target is not executing, because the pc is 0*/
addr = (Opaque) parse_and_eval_address ("main");
if (addr == (Opaque) 0)
addr = (Opaque) 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
#ifdef __STDC__
tuiVerticalDisassemScroll (
TuiScrollDirection scrollDirection,
int numToScroll)
#else
tuiVerticalDisassemScroll (scrollDirection, numToScroll)
TuiScrollDirection scrollDirection;
int numToScroll;
#endif
{
if (disassemWin->generic.content != (OpaquePtr) NULL)
{
Opaque 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 ((CORE_ADDR) pc,
(char **) NULL,
(CORE_ADDR *) & lowAddr,
(CORE_ADDR) NULL) == 0)
error ("No function contains prgram counter for selected frame.\n");
else
{
register int line = 0;
register Opaque newLow;
bfd_byte buffer[4];
newLow = pc;
if (scrollDirection == FORWARD_SCROLL)
{
for (; line < numToScroll; line++)
newLow += sizeof (bfd_getb32 (buffer));
}
else
{
for (; newLow >= (Opaque) 0 && line < numToScroll; line++)
newLow -= sizeof (bfd_getb32 (buffer));
}
tuiUpdateSourceWindowAsIs (disassemWin, s, newLow, 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 *
#ifdef __STDC__
_hasBreak (
CORE_ADDR addr)
#else
_hasBreak (addr)
CORE_ADDR addr;
#endif
{
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 */
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