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 PARAMS ((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 GDB_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 PARAMS ((CORE_ADDR, char *, int));
60 extern void strcat_address_numeric PARAMS ((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 gdb_file structure */
69 gdb_dis_out = gdb_file_init_astring (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 (gdb_file_get_strbuf (gdb_dis_out));
86 i = curLen - ((curLen / tab_len) * tab_len);
88 /* adjust buffer length if necessary */
89 gdb_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 gdb_file_get_strbuf (gdb_dis_out)[curLen] = ' ';
98 gdb_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 (gdb_file_get_strbuf (gdb_dis_out)) > offset)
104 strcpy (element->whichElement.source.line,
105 &(gdb_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 gdb_file_get_strbuf (gdb_dis_out)[0] = '\0';
121 gdb_file_deallocate (&gdb_dis_out);
122 disassemWin->generic.contentSize = curLine;
128 } /* tuiSetDisassemContent */
132 ** tuiShowDisassem().
133 ** Function to display the disassembly window with disassembled code.
140 tuiShowDisassem (startAddr)
144 struct symtab *s = find_pc_symtab ((CORE_ADDR) startAddr);
145 TuiWinInfoPtr winWithFocus = tuiWinWithFocus ();
147 tuiAddWinToLayout (DISASSEM_WIN);
148 tuiUpdateSourceWindow (disassemWin, s, startAddr, FALSE);
150 ** if the focus was in the src win, put it in the asm win, if the
151 ** source view isn't split
153 if (currentLayout () != SRC_DISASSEM_COMMAND && winWithFocus == srcWin)
154 tuiSetWinFocusTo (disassemWin);
157 } /* tuiShowDisassem */
161 ** tuiShowDisassemAndUpdateSource().
162 ** Function to display the disassembly window.
166 tuiShowDisassemAndUpdateSource (
169 tuiShowDisassemAndUpdateSource (startAddr)
173 struct symtab_and_line sal;
175 tuiShowDisassem (startAddr);
176 if (currentLayout () == SRC_DISASSEM_COMMAND)
178 TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
180 ** Update what is in the source window if it is displayed too,
181 ** note that it follows what is in the disassembly window and visa-versa
183 sal = find_pc_line ((CORE_ADDR) startAddr, 0);
184 current_source_symtab = sal.symtab;
185 tuiUpdateSourceWindow (srcWin, sal.symtab, (Opaque) sal.line, TRUE);
186 tuiUpdateLocatorFilename (sal.symtab->filename);
190 } /* tuiShowDisassemAndUpdateSource */
194 ** tuiShowDisassemAsIs().
195 ** Function to display the disassembly window. This function shows
196 ** the disassembly as specified by the horizontal offset.
200 tuiShowDisassemAsIs (
203 tuiShowDisassemAsIs (addr)
207 tuiAddWinToLayout (DISASSEM_WIN);
208 tuiUpdateSourceWindowAsIs (disassemWin, (struct symtab *) NULL, addr, FALSE);
210 ** Update what is in the source window if it is displayed too, not that it
211 ** follows what is in the disassembly window and visa-versa
213 if (currentLayout () == SRC_DISASSEM_COMMAND)
214 tuiShowSourceContent (srcWin); /*???? Need to do more? */
217 } /* tuiShowDisassem */
221 ** tuiGetBeginAsmAddress().
225 tuiGetBeginAsmAddress (void)
227 tuiGetBeginAsmAddress ()
230 TuiGenWinInfoPtr locator;
231 TuiLocatorElementPtr element;
234 locator = locatorWinInfoPtr ();
235 element = &((TuiWinElementPtr) locator->content[0])->whichElement.locator;
237 if (element->addr == (Opaque) 0)
239 /*the target is not executing, because the pc is 0*/
241 addr = (Opaque) parse_and_eval_address ("main");
243 if (addr == (Opaque) 0)
244 addr = (Opaque) parse_and_eval_address ("MAIN");
247 else /* the target is executing */
248 addr = element->addr;
251 } /* tuiGetBeginAsmAddress */
255 ** tuiVerticalDisassemScroll().
256 ** Scroll the disassembly forward or backward vertically
260 tuiVerticalDisassemScroll (
261 TuiScrollDirection scrollDirection,
264 tuiVerticalDisassemScroll (scrollDirection, numToScroll)
265 TuiScrollDirection scrollDirection;
269 if (disassemWin->generic.content != (OpaquePtr) NULL)
272 TuiWinContent content;
275 content = (TuiWinContent) disassemWin->generic.content;
276 if (current_source_symtab == (struct symtab *) NULL)
277 s = find_pc_symtab (selected_frame->pc);
279 s = current_source_symtab;
281 pc = content[0]->whichElement.source.lineOrAddr.addr;
282 if (find_pc_partial_function ((CORE_ADDR) pc,
284 (CORE_ADDR *) & lowAddr,
285 (CORE_ADDR) NULL) == 0)
286 error ("No function contains prgram counter for selected frame.\n");
289 register int line = 0;
290 register Opaque newLow;
294 if (scrollDirection == FORWARD_SCROLL)
296 for (; line < numToScroll; line++)
297 newLow += sizeof (bfd_getb32 (buffer));
301 for (; newLow >= (Opaque) 0 && line < numToScroll; line++)
302 newLow -= sizeof (bfd_getb32 (buffer));
304 tuiUpdateSourceWindowAsIs (disassemWin, s, newLow, FALSE);
309 } /* tuiVerticalDisassemScroll */
313 /*****************************************
314 ** STATIC LOCAL FUNCTIONS **
315 ******************************************/
318 ** Answer whether there is a break point at the input line in the
319 ** source file indicated
321 static struct breakpoint *
330 struct breakpoint *bpWithBreak = (struct breakpoint *) NULL;
331 struct breakpoint *bp;
332 extern struct breakpoint *breakpoint_chain;
335 for (bp = breakpoint_chain;
336 (bp != (struct breakpoint *) NULL &&
337 bpWithBreak == (struct breakpoint *) NULL);
339 if (addr == bp->address)