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Diffstat (limited to 'gdb/tui/tuiDisassem.c')
| -rw-r--r-- | gdb/tui/tuiDisassem.c | 415 |
1 files changed, 0 insertions, 415 deletions
diff --git a/gdb/tui/tuiDisassem.c b/gdb/tui/tuiDisassem.c deleted file mode 100644 index e36c5df..0000000 --- a/gdb/tui/tuiDisassem.c +++ /dev/null @@ -1,415 +0,0 @@ -/* Disassembly display. - - Copyright 1998, 1999, 2000, 2001, 2002, 2003 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. */ - -#include "defs.h" -#include "symtab.h" -#include "breakpoint.h" -#include "frame.h" -#include "value.h" -#include "source.h" -#include "disasm.h" - -#include "tui.h" -#include "tuiData.h" -#include "tuiWin.h" -#include "tuiLayout.h" -#include "tuiSourceWin.h" -#include "tuiStack.h" -#include "tui-file.h" - -#ifdef HAVE_NCURSES_H -#include <ncurses.h> -#else -#ifdef HAVE_CURSES_H -#include <curses.h> -#endif -#endif - -struct tui_asm_line -{ - CORE_ADDR addr; - char* addr_string; - char* insn; -}; - -/* Function to set the disassembly window's content. - Disassemble count lines starting at pc. - Return address of the count'th instruction after pc. */ -static CORE_ADDR -tui_disassemble (struct tui_asm_line* lines, CORE_ADDR pc, int count) -{ - struct ui_file *gdb_dis_out; - - /* now init the ui_file structure */ - gdb_dis_out = tui_sfileopen (256); - - /* Now construct each line */ - for (; count > 0; count--, lines++) - { - if (lines->addr_string) - xfree (lines->addr_string); - if (lines->insn) - xfree (lines->insn); - - print_address (pc, gdb_dis_out); - lines->addr = pc; - lines->addr_string = xstrdup (tui_file_get_strbuf (gdb_dis_out)); - - ui_file_rewind (gdb_dis_out); - - pc = pc + gdb_print_insn (pc, gdb_dis_out); - - lines->insn = xstrdup (tui_file_get_strbuf (gdb_dis_out)); - - /* reset the buffer to empty */ - ui_file_rewind (gdb_dis_out); - } - ui_file_delete (gdb_dis_out); - return pc; -} - -/* Find the disassembly address that corresponds to FROM lines - above or below the PC. Variable sized instructions are taken - into account by the algorithm. */ -static CORE_ADDR -tui_find_disassembly_address (CORE_ADDR pc, int from) -{ - register CORE_ADDR newLow; - int maxLines; - int i; - struct tui_asm_line* lines; - - maxLines = (from > 0) ? from : - from; - if (maxLines <= 1) - return pc; - - lines = (struct tui_asm_line*) alloca (sizeof (struct tui_asm_line) - * maxLines); - memset (lines, 0, sizeof (struct tui_asm_line) * maxLines); - - newLow = pc; - if (from > 0) - { - tui_disassemble (lines, pc, maxLines); - newLow = lines[maxLines - 1].addr; - } - else - { - CORE_ADDR last_addr; - int pos; - struct minimal_symbol* msymbol; - - /* Find backward an address which is a symbol - and for which disassembling from that address will fill - completely the window. */ - pos = maxLines - 1; - do { - newLow -= 1 * maxLines; - msymbol = lookup_minimal_symbol_by_pc_section (newLow, 0); - - if (msymbol) - newLow = SYMBOL_VALUE_ADDRESS (msymbol); - else - newLow += 1 * maxLines; - - tui_disassemble (lines, newLow, maxLines); - last_addr = lines[pos].addr; - } while (last_addr > pc && msymbol); - - /* Scan forward disassembling one instruction at a time - until the last visible instruction of the window - matches the pc. We keep the disassembled instructions - in the 'lines' window and shift it downward (increasing - its addresses). */ - if (last_addr < pc) - do - { - CORE_ADDR next_addr; - - pos++; - if (pos >= maxLines) - pos = 0; - - next_addr = tui_disassemble (&lines[pos], last_addr, 1); - - /* If there are some problems while disassembling exit. */ - if (next_addr <= last_addr) - break; - last_addr = next_addr; - } while (last_addr <= pc); - pos++; - if (pos >= maxLines) - pos = 0; - newLow = lines[pos].addr; - } - for (i = 0; i < maxLines; i++) - { - xfree (lines[i].addr_string); - xfree (lines[i].insn); - } - return newLow; -} - -/* Function to set the disassembly window's content. */ -TuiStatus -tuiSetDisassemContent (CORE_ADDR pc) -{ - TuiStatus ret = TUI_FAILURE; - register int i; - register int offset = disassemWin->detail.sourceInfo.horizontalOffset; - register int lineWidth, maxLines; - CORE_ADDR cur_pc; - TuiGenWinInfoPtr locator = locatorWinInfoPtr (); - int tab_len = tuiDefaultTabLen (); - struct tui_asm_line* lines; - int insn_pos; - int addr_size, max_size; - char* line; - - if (pc == 0) - return TUI_FAILURE; - - ret = tuiAllocSourceBuffer (disassemWin); - if (ret != TUI_SUCCESS) - return ret; - - disassemWin->detail.sourceInfo.startLineOrAddr.addr = pc; - cur_pc = (CORE_ADDR) - (((TuiWinElementPtr) locator->content[0])->whichElement.locator.addr); - - maxLines = disassemWin->generic.height - 2; /* account for hilite */ - - /* Get temporary table that will hold all strings (addr & insn). */ - lines = (struct tui_asm_line*) alloca (sizeof (struct tui_asm_line) - * maxLines); - memset (lines, 0, sizeof (struct tui_asm_line) * maxLines); - - lineWidth = disassemWin->generic.width - 1; - - tui_disassemble (lines, pc, maxLines); - - /* See what is the maximum length of an address and of a line. */ - addr_size = 0; - max_size = 0; - for (i = 0; i < maxLines; i++) - { - size_t len = strlen (lines[i].addr_string); - if (len > addr_size) - addr_size = len; - - len = strlen (lines[i].insn) + tab_len; - if (len > max_size) - max_size = len; - } - max_size += addr_size + tab_len; - - /* Allocate memory to create each line. */ - line = (char*) alloca (max_size); - insn_pos = (1 + (addr_size / tab_len)) * tab_len; - - /* Now construct each line */ - for (i = 0; i < maxLines; i++) - { - TuiWinElementPtr element; - TuiSourceElement* src; - int curLen; - - element = (TuiWinElementPtr) disassemWin->generic.content[i]; - src = &element->whichElement.source; - strcpy (line, lines[i].addr_string); - curLen = strlen (line); - - /* Add spaces to make the instructions start on the same column */ - while (curLen < insn_pos) - { - strcat (line, " "); - curLen++; - } - - strcat (line, lines[i].insn); - - /* Now copy the line taking the offset into account */ - if (strlen (line) > offset) - strcpy (src->line, &line[offset]); - else - src->line[0] = '\0'; - - src->lineOrAddr.addr = lines[i].addr; - src->isExecPoint = lines[i].addr == cur_pc; - - /* See whether there is a breakpoint installed. */ - src->hasBreak = (!src->isExecPoint - && breakpoint_here_p (pc) != no_breakpoint_here); - - xfree (lines[i].addr_string); - xfree (lines[i].insn); - } - disassemWin->generic.contentSize = i; - return TUI_SUCCESS; -} - - -/* - ** 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; - - /* - ** 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) - { - set_current_source_symtab_and_line (&sal); - 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) - { - struct minimal_symbol *main_symbol; - - /* Find address of the start of program. - Note: this should be language specific. */ - main_symbol = lookup_minimal_symbol ("main", NULL, NULL); - if (main_symbol == 0) - main_symbol = lookup_minimal_symbol ("MAIN", NULL, NULL); - if (main_symbol == 0) - main_symbol = lookup_minimal_symbol ("_start", NULL, NULL); - if (main_symbol) - addr = SYMBOL_VALUE_ADDRESS (main_symbol); - else - addr = 0; - } - else /* the target is executing */ - addr = element->addr; - - return addr; -} /* tuiGetBeginAsmAddress */ - -/* Determine what the low address will be to display in the TUI's - disassembly window. This may or may not be the same as the - low address input. */ -CORE_ADDR -tuiGetLowDisassemblyAddress (CORE_ADDR low, CORE_ADDR pc) -{ - int pos; - - /* Determine where to start the disassembly so that the pc is about in the - middle of the viewport. */ - pos = tuiDefaultWinViewportHeight (DISASSEM_WIN, DISASSEM_COMMAND) / 2; - pc = tui_find_disassembly_address (pc, -pos); - - if (pc < low) - pc = low; - return pc; -} - -/* - ** tuiVerticalDisassemScroll(). - ** Scroll the disassembly forward or backward vertically - */ -void -tuiVerticalDisassemScroll (TuiScrollDirection scrollDirection, - int numToScroll) -{ - if (disassemWin->generic.content != (OpaquePtr) NULL) - { - CORE_ADDR pc; - TuiWinContent content; - struct symtab *s; - TuiLineOrAddress val; - int maxLines, dir; - struct symtab_and_line cursal = get_current_source_symtab_and_line (); - - content = (TuiWinContent) disassemWin->generic.content; - if (cursal.symtab == (struct symtab *) NULL) - s = find_pc_symtab (get_frame_pc (deprecated_selected_frame)); - else - s = cursal.symtab; - - /* account for hilite */ - maxLines = disassemWin->generic.height - 2; - pc = content[0]->whichElement.source.lineOrAddr.addr; - dir = (scrollDirection == FORWARD_SCROLL) ? maxLines : - maxLines; - - val.addr = tui_find_disassembly_address (pc, dir); - tuiUpdateSourceWindowAsIs (disassemWin, s, val, FALSE); - } -} |