3 ** This module contains functions for handling disassembly display.
9 #include "breakpoint.h"
14 #include "tuiLayout.h"
15 #include "tuiSourceWin.h"
19 /*****************************************
20 ** STATIC LOCAL FUNCTIONS FORWARD DECLS **
21 ******************************************/
23 static struct breakpoint *_hasBreak (CORE_ADDR);
26 /*****************************************
27 ** PUBLIC FUNCTIONS **
28 ******************************************/
31 ** tuiSetDisassemContent().
32 ** Function to set the disassembly window's content.
36 tuiSetDisassemContent (
40 tuiSetDisassemContent (s, startAddr)
45 TuiStatus ret = TUI_FAILURE;
46 struct ui_file *gdb_dis_out;
48 if (startAddr != (Opaque) NULL)
52 if ((ret = tuiAllocSourceBuffer (disassemWin)) == TUI_SUCCESS)
54 register int offset = disassemWin->detail.sourceInfo.horizontalOffset;
55 register int threshold, curLine = 0, lineWidth, maxLines;
57 disassemble_info asmInfo;
58 TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
59 extern void strcat_address (CORE_ADDR, char *, int);
60 extern void strcat_address_numeric (CORE_ADDR, int, char *, int);
62 int tab_len = tuiDefaultTabLen ();
64 maxLines = disassemWin->generic.height - 2; /* account for hilite */
65 lineWidth = disassemWin->generic.width - 1;
66 threshold = (lineWidth - 1) + offset;
68 /* now init the ui_file structure */
69 gdb_dis_out = tui_sfileopen (threshold);
71 INIT_DISASSEMBLE_INFO_NO_ARCH (asmInfo, gdb_dis_out, (fprintf_ftype) fprintf_filtered);
72 asmInfo.read_memory_func = dis_asm_read_memory;
73 asmInfo.memory_error_func = dis_asm_memory_error;
75 disassemWin->detail.sourceInfo.startLineOrAddr.addr = startAddr;
77 /* Now construct each line */
78 for (curLine = 0, pc = (CORE_ADDR) startAddr; (curLine < maxLines);)
80 TuiWinElementPtr element = (TuiWinElementPtr) disassemWin->generic.content[curLine];
81 struct breakpoint *bp;
83 print_address (pc, gdb_dis_out);
85 curLen = strlen (tui_file_get_strbuf (gdb_dis_out));
86 i = curLen - ((curLen / tab_len) * tab_len);
88 /* adjust buffer length if necessary */
89 tui_file_adjust_strbuf ((tab_len - i > 0) ? (tab_len - i) : 0, gdb_dis_out);
91 /* Add spaces to make the instructions start onthe same column */
94 tui_file_get_strbuf (gdb_dis_out)[curLen] = ' ';
98 tui_file_get_strbuf (gdb_dis_out)[curLen] = '\0';
100 newpc = pc + ((*tm_print_insn) (pc, &asmInfo));
102 /* Now copy the line taking the offset into account */
103 if (strlen (tui_file_get_strbuf (gdb_dis_out)) > offset)
104 strcpy (element->whichElement.source.line,
105 &(tui_file_get_strbuf (gdb_dis_out)[offset]));
107 element->whichElement.source.line[0] = '\0';
108 element->whichElement.source.lineOrAddr.addr = (Opaque) pc;
109 element->whichElement.source.isExecPoint =
110 (pc == (CORE_ADDR) ((TuiWinElementPtr) locator->content[0])->whichElement.locator.addr);
112 element->whichElement.source.hasBreak =
113 (bp != (struct breakpoint *) NULL &&
114 (!element->whichElement.source.isExecPoint ||
115 (bp->disposition != del || bp->hit_count <= 0)));
118 /* reset the buffer to empty */
119 tui_file_get_strbuf (gdb_dis_out)[0] = '\0';
121 ui_file_delete (gdb_dis_out);
123 disassemWin->generic.contentSize = curLine;
129 } /* tuiSetDisassemContent */
133 ** tuiShowDisassem().
134 ** Function to display the disassembly window with disassembled code.
141 tuiShowDisassem (startAddr)
145 struct symtab *s = find_pc_symtab ((CORE_ADDR) startAddr);
146 TuiWinInfoPtr winWithFocus = tuiWinWithFocus ();
148 tuiAddWinToLayout (DISASSEM_WIN);
149 tuiUpdateSourceWindow (disassemWin, s, startAddr, FALSE);
151 ** if the focus was in the src win, put it in the asm win, if the
152 ** source view isn't split
154 if (currentLayout () != SRC_DISASSEM_COMMAND && winWithFocus == srcWin)
155 tuiSetWinFocusTo (disassemWin);
158 } /* tuiShowDisassem */
162 ** tuiShowDisassemAndUpdateSource().
163 ** Function to display the disassembly window.
167 tuiShowDisassemAndUpdateSource (
170 tuiShowDisassemAndUpdateSource (startAddr)
174 struct symtab_and_line sal;
176 tuiShowDisassem (startAddr);
177 if (currentLayout () == SRC_DISASSEM_COMMAND)
179 TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
181 ** Update what is in the source window if it is displayed too,
182 ** note that it follows what is in the disassembly window and visa-versa
184 sal = find_pc_line ((CORE_ADDR) startAddr, 0);
185 current_source_symtab = sal.symtab;
186 tuiUpdateSourceWindow (srcWin, sal.symtab, (Opaque) sal.line, TRUE);
187 tuiUpdateLocatorFilename (sal.symtab->filename);
191 } /* tuiShowDisassemAndUpdateSource */
195 ** tuiShowDisassemAsIs().
196 ** Function to display the disassembly window. This function shows
197 ** the disassembly as specified by the horizontal offset.
201 tuiShowDisassemAsIs (
204 tuiShowDisassemAsIs (addr)
208 tuiAddWinToLayout (DISASSEM_WIN);
209 tuiUpdateSourceWindowAsIs (disassemWin, (struct symtab *) NULL, addr, FALSE);
211 ** Update what is in the source window if it is displayed too, not that it
212 ** follows what is in the disassembly window and visa-versa
214 if (currentLayout () == SRC_DISASSEM_COMMAND)
215 tuiShowSourceContent (srcWin); /*???? Need to do more? */
218 } /* tuiShowDisassem */
222 ** tuiGetBeginAsmAddress().
226 tuiGetBeginAsmAddress (void)
228 tuiGetBeginAsmAddress ()
231 TuiGenWinInfoPtr locator;
232 TuiLocatorElementPtr element;
235 locator = locatorWinInfoPtr ();
236 element = &((TuiWinElementPtr) locator->content[0])->whichElement.locator;
238 if (element->addr == (Opaque) 0)
240 /*the target is not executing, because the pc is 0 */
242 addr = (Opaque) parse_and_eval_address ("main");
244 if (addr == (Opaque) 0)
245 addr = (Opaque) parse_and_eval_address ("MAIN");
248 else /* the target is executing */
249 addr = element->addr;
252 } /* tuiGetBeginAsmAddress */
256 ** tuiVerticalDisassemScroll().
257 ** Scroll the disassembly forward or backward vertically
261 tuiVerticalDisassemScroll (
262 TuiScrollDirection scrollDirection,
265 tuiVerticalDisassemScroll (scrollDirection, numToScroll)
266 TuiScrollDirection scrollDirection;
270 if (disassemWin->generic.content != (OpaquePtr) NULL)
273 TuiWinContent content;
276 content = (TuiWinContent) disassemWin->generic.content;
277 if (current_source_symtab == (struct symtab *) NULL)
278 s = find_pc_symtab (selected_frame->pc);
280 s = current_source_symtab;
282 pc = content[0]->whichElement.source.lineOrAddr.addr;
283 if (find_pc_partial_function ((CORE_ADDR) pc,
285 (CORE_ADDR *) & lowAddr,
286 (CORE_ADDR) NULL) == 0)
287 error ("No function contains prgram counter for selected frame.\n");
290 register int line = 0;
291 register Opaque newLow;
295 if (scrollDirection == FORWARD_SCROLL)
297 for (; line < numToScroll; line++)
298 newLow += sizeof (bfd_getb32 (buffer));
302 for (; newLow >= (Opaque) 0 && line < numToScroll; line++)
303 newLow -= sizeof (bfd_getb32 (buffer));
305 tuiUpdateSourceWindowAsIs (disassemWin, s, newLow, FALSE);
310 } /* tuiVerticalDisassemScroll */
314 /*****************************************
315 ** STATIC LOCAL FUNCTIONS **
316 ******************************************/
319 ** Answer whether there is a break point at the input line in the
320 ** source file indicated
322 static struct breakpoint *
331 struct breakpoint *bpWithBreak = (struct breakpoint *) NULL;
332 struct breakpoint *bp;
333 extern struct breakpoint *breakpoint_chain;
336 for (bp = breakpoint_chain;
337 (bp != (struct breakpoint *) NULL &&
338 bpWithBreak == (struct breakpoint *) NULL);
340 if (addr == bp->address)