diff options
Diffstat (limited to 'gdb/tui/tui.c')
| -rw-r--r-- | gdb/tui/tui.c | 830 |
1 files changed, 830 insertions, 0 deletions
diff --git a/gdb/tui/tui.c b/gdb/tui/tui.c new file mode 100644 index 0000000000..f64db4442a --- /dev/null +++ b/gdb/tui/tui.c @@ -0,0 +1,830 @@ +/* +** tui.c +** General functions for the WDB TUI +*/ + +#include <stdio.h> +#include <stdlib.h> +#include <ctype.h> +#include <malloc.h> +#include <curses.h> +#ifdef HAVE_TERM_H +#include <term.h> +#endif +#include <signal.h> +#include <fcntl.h> +#include <termio.h> +#include <setjmp.h> +#include "defs.h" +#include "gdbcmd.h" +#include "tui.h" +#include "tuiData.h" +#include "tuiLayout.h" +#include "tuiIO.h" +#include "tuiRegs.h" +#include "tuiWin.h" + +/* The Solaris header files seem to provide no declaration for this at + all when __STDC__ is defined. This shouldn't conflict with + anything. */ +extern char *tgoto (); + +/*********************** +** Local Definitions +************************/ +#define FILEDES 2 +/* Solaris <sys/termios.h> defines CTRL. */ +#ifndef CTRL +#define CTRL(x) (x & ~0140) +#endif +#define CHK(val, dft) (val<=0 ? dft : val) + +#define TOGGLE_USAGE "Usage:toggle breakpoints" +#define TUI_TOGGLE_USAGE "Usage:\ttoggle $fregs\n\ttoggle breakpoints" + +/***************************** +** Local static forward decls +******************************/ +static void _tuiReset PARAMS ((void)); +static void _toggle_command PARAMS ((char *, int)); +static void _tui_vToggle_command PARAMS ((va_list)); +static Opaque _tui_vDo PARAMS ((TuiOpaqueFuncPtr, va_list)); + + + +/*********************** +** Public Functions +************************/ + +/* +** tuiInit(). +*/ +void +#ifdef __STDC__ +tuiInit (char *argv0) +#else +tuiInit (argv0) + char *argv0; +#endif +{ + extern void init_page_info (); + extern void initialize_tui_files PARAMS ((void)); + + initialize_tui_files (); + initializeStaticData (); + initscr (); + refresh (); + setTermHeightTo (LINES); + setTermWidthTo (COLS); + tuiInitWindows (); + wrefresh (cmdWin->generic.handle); + init_page_info (); + /* Don't hook debugger output if doing command-window + * the XDB way. However, one thing we do want to do in + * XDB style is set up the scrolling region to be + * the bottom of the screen (tuiTermUnsetup()). + */ + fputs_unfiltered_hook = NULL; + flush_hook = NULL; + rl_initialize (); /* need readline initialization to + * create termcap sequences + */ + tuiTermUnsetup (1, cmdWin->detail.commandInfo.curch); + + return; +} /* tuiInit */ + + +/* +** tuiInitWindows(). +*/ +void +#ifdef __STDC__ +tuiInitWindows (void) +#else +tuiInitWindows () +#endif +{ + TuiWinType type; + + tuiSetLocatorContent (0); + showLayout (SRC_COMMAND); + keypad (cmdWin->generic.handle, TRUE); + echo (); + crmode (); + nl (); + tuiSetWinFocusTo (srcWin); + + return; +} /* tuiInitWindows */ + + +/* +** tuiCleanUp(). +** Kill signal handler and cleanup termination method +*/ +void +#ifdef __STDC__ +tuiResetScreen (void) +#else +tuiResetScreen () +#endif +{ + TuiWinType type = SRC_WIN; + + keypad (cmdWin->generic.handle, FALSE); + for (; type < MAX_MAJOR_WINDOWS; type++) + { + if (m_winPtrNotNull (winList[type]) && + winList[type]->generic.type != UNDEFINED_WIN && + !winList[type]->generic.isVisible) + tuiDelWindow (winList[type]); + } + endwin (); + initscr (); + refresh (); + echo (); + crmode (); + nl (); + + return; +} /* tuiResetScreen */ + + +/* +** tuiCleanUp(). +** Kill signal handler and cleanup termination method +*/ +void +#ifdef __STDC__ +tuiCleanUp (void) +#else +tuiCleanUp () +#endif +{ + char *buffer; + extern char *term_cursor_move; + + signal (SIGINT, SIG_IGN); + tuiTermSetup (0); /* Restore scrolling region to whole screen */ + keypad (cmdWin->generic.handle, FALSE); + freeAllWindows (); + endwin (); + buffer = tgoto (term_cursor_move, 0, termHeight ()); + tputs (buffer, 1, putchar); + _tuiReset (); + + return; +} /* tuiCleanUp */ + + +/* +** tuiError(). +*/ +void +#ifdef __STDC__ +tuiError ( + char *string, + int exitGdb) +#else +tuiError (string, exitGdb) + char *string; + int exitGdb; +#endif +{ + puts_unfiltered (string); + if (exitGdb) + { + tuiCleanUp (); + exit (-1); + } + + return; +} /* tuiError */ + + +/* +** tui_vError() +** tuiError with args in a va_list. +*/ +void +#ifdef __STDC__ +tui_vError ( + va_list args) +#else +tui_vError (args) + va_list args; +#endif +{ + char *string; + int exitGdb; + + string = va_arg (args, char *); + exitGdb = va_arg (args, int); + + tuiError (string, exitGdb); + + return; +} /* tui_vError */ + + +/* +** tuiFree() +** Wrapper on top of free() to ensure that input address is greater than 0x0 +*/ +void +#ifdef __STDC__ +tuiFree ( + char *ptr) +#else +tuiFree (ptr) + char *ptr; +#endif +{ + if (ptr != (char *) NULL) + { + free (ptr); + } + + return; +} /* tuiFree */ + + +/* tuiGetLowDisassemblyAddress(). +** 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. +*/ +Opaque +#ifdef __STDC__ +tuiGetLowDisassemblyAddress ( + Opaque low, + Opaque pc) +#else +tuiGetLowDisassemblyAddress (low, pc) + Opaque low; + Opaque pc; +#endif +{ + int line; + Opaque newLow; + + /* + ** Determine where to start the disassembly so that the pc is about in the + ** middle of the viewport. + */ + for (line = 0, newLow = pc; + (newLow > low && + line < (tuiDefaultWinViewportHeight (DISASSEM_WIN, + DISASSEM_COMMAND) / 2));) + { + bfd_byte buffer[4]; + + newLow -= sizeof (bfd_getb32 (buffer)); + line++; + } + + return newLow; +} /* tuiGetLowDisassemblyAddress */ + + +/* tui_vGetLowDisassemblyAddress(). +** Determine what the low address will be to display in the TUI's +** disassembly window with args in a va_list. +*/ +Opaque +#ifdef __STDC__ +tui_vGetLowDisassemblyAddress ( + va_list args) +#else +tui_vGetLowDisassemblyAddress (args) + va_list args; +#endif +{ + int line; + Opaque newLow; + Opaque low; + Opaque pc; + + low = va_arg (args, Opaque); + pc = va_arg (args, Opaque); + + return (tuiGetLowDisassemblyAddress (low, pc)); + +} /* tui_vGetLowDisassemblyAddress */ + + +/* +** tuiDo(). +** General purpose function to execute a tui function. Transitions +** between curses and the are handled here. This function is called +** by non-tui gdb functions. +** +** Errors are caught here. +** If there is no error, the value returned by 'func' is returned. +** If there is an error, then zero is returned. +** +** Must not be called with immediate_quit in effect (bad things might +** happen, say we got a signal in the middle of a memcpy to quit_return). +** This is an OK restriction; with very few exceptions immediate_quit can +** be replaced by judicious use of QUIT. +*/ +Opaque +#ifdef __STDC__ +tuiDo ( + TuiOpaqueFuncPtr func,...) +#else +tuiDo (func, va_alist) + TuiOpaqueFuncPtr func; + va_dcl +#endif +{ + extern int terminal_is_ours; + + Opaque ret = (Opaque) NULL; + + /* It is an error to be tuiDo'ing if we + * don't own the terminal. + */ + if (!terminal_is_ours) + return ret; + + if (tui_version) + { + va_list args; + +#ifdef __STDC__ + va_start (args, func); +#else + va_start (args); +#endif + ret = _tui_vDo (func, args); + va_end (args); + } + + return ret; +} /* tuiDo */ + + +/* +** tuiDoAndReturnToTop(). +** General purpose function to execute a tui function. Transitions +** between curses and the are handled here. This function is called +** by non-tui gdb functions who wish to reset gdb to the top level. +** After the tuiDo is performed, a return to the top level occurs. +** +** Errors are caught here. +** If there is no error, the value returned by 'func' is returned. +** If there is an error, then zero is returned. +** +** Must not be called with immediate_quit in effect (bad things might +** happen, say we got a signal in the middle of a memcpy to quit_return). +** This is an OK restriction; with very few exceptions immediate_quit can +** be replaced by judicious use of QUIT. +** +*/ +Opaque +#ifdef __STDC__ +tuiDoAndReturnToTop ( + TuiOpaqueFuncPtr func,...) +#else +tuiDoAndReturnToTop (func, va_alist) + TuiOpaqueFuncPtr func; + va_dcl +#endif +{ + extern int terminal_is_ours; + + Opaque ret = (Opaque) NULL; + + /* It is an error to be tuiDo'ing if we + * don't own the terminal. + */ + if (!terminal_is_ours) + return ret; + + if (tui_version) + { + va_list args; + +#ifdef __STDC__ + va_start (args, func); +#else + va_start (args); +#endif + ret = _tui_vDo (func, args); + + /* force a return to the top level */ + return_to_top_level (RETURN_ERROR); + } + + return ret; +} /* tuiDoAndReturnToTop */ + + +void +#ifdef __STDC__ +tui_vSelectSourceSymtab ( + va_list args) +#else +tui_vSelectSourceSymtab (args) + va_list args; +#endif +{ + struct symtab *s = va_arg (args, struct symtab *); + + select_source_symtab (s); + return; +} /* tui_vSelectSourceSymtab */ + + +/* +** _initialize_tui(). +** Function to initialize gdb commands, for tui window manipulation. +*/ +void +_initialize_tui () +{ +#if 0 + if (tui_version) + { + add_com ("toggle", class_tui, _toggle_command, + "Toggle Terminal UI Features\n\ +Usage: Toggle $fregs\n\ +\tToggles between single and double precision floating point registers.\n"); + } +#endif + char *helpStr; + + if (tui_version) + helpStr = "Toggle Specified Features\n\ +Usage:\ttoggle $fregs\n\ttoggle breakpoints"; + else + helpStr = "Toggle Specified Features\nUsage:toggle breakpoints"; + add_abbrev_prefix_cmd ("toggle", + class_tui, + _toggle_command, + helpStr, + &togglelist, + "toggle ", + 1, + &cmdlist); +} /* _initialize_tui*/ + + +/* +** va_catch_errors(). +** General purpose function to execute a function, catching errors. +** If there is no error, the value returned by 'func' is returned. +** If there is error, then zero is returned. +** Note that 'func' must take a variable argument list as well. +** +** Must not be called with immediate_quit in effect (bad things might +** happen, say we got a signal in the middle of a memcpy to quit_return). +** This is an OK restriction; with very few exceptions immediate_quit can +** be replaced by judicious use of QUIT. +*/ +Opaque +#ifdef __STDC__ +va_catch_errors ( + TuiOpaqueFuncPtr func, + va_list args) +#else +va_catch_errors (func, args) + TuiOpaqueFuncPtr func; + va_list args; +#endif +{ + Opaque ret = (Opaque) NULL; + + /* + ** We could have used catch_errors(), but it doesn't handle variable args. + ** Also, for the tui, we always want to catch all errors, so we don't + ** need to pass a mask, or an error string. + */ + jmp_buf saved_error; + jmp_buf saved_quit; + jmp_buf tmp_jmp; + struct cleanup *saved_cleanup_chain; + char *saved_error_pre_print; + char *saved_quit_pre_print; + extern jmp_buf error_return; + extern jmp_buf quit_return; + + saved_cleanup_chain = save_cleanups (); + saved_error_pre_print = error_pre_print; + saved_quit_pre_print = quit_pre_print; + + memcpy ((char *) saved_error, (char *) error_return, sizeof (jmp_buf)); + error_pre_print = ""; + memcpy (saved_quit, quit_return, sizeof (jmp_buf)); + quit_pre_print = ""; + + if (setjmp (tmp_jmp) == 0) + { + va_list argList = args; + memcpy (error_return, tmp_jmp, sizeof (jmp_buf)); + memcpy (quit_return, tmp_jmp, sizeof (jmp_buf)); + ret = func (argList); + } + restore_cleanups (saved_cleanup_chain); + memcpy (error_return, saved_error, sizeof (jmp_buf)); + error_pre_print = saved_error_pre_print; + memcpy (quit_return, saved_quit, sizeof (jmp_buf)); + quit_pre_print = saved_quit_pre_print; + + return ret; +} + +/* +** vcatch_errors(). +** Catch errors occurring in tui or non tui function, handling +** variable param lists. Note that 'func' must take a variable +** argument list as well. +*/ +Opaque +#ifdef __STDC__ +vcatch_errors ( + OpaqueFuncPtr func,...) +#else +vcatch_errors (va_alist) + va_dcl +/* +vcatch_errors(func, va_alist) + OpaqueFuncPtr func; + va_dcl +*/ +#endif +{ + Opaque ret = (Opaque) NULL; + va_list args; +#ifdef __STDC__ + va_start (args, func); +/* + va_arg(args, OpaqueFuncPtr); +*/ +#else + OpaqueFuncPtr func; + + va_start (args); + func = va_arg (args, OpaqueFuncPtr); +#endif + ret = va_catch_errors (func, args); + va_end (args); + + return ret; +} + + +void +#ifdef __STDC__ +strcat_to_buf ( + char *buf, + int buflen, + char *itemToAdd) +#else +strcat_to_buf (buf, buflen, itemToAdd) + char *buf; + int buflen; + char *itemToAdd; +#endif +{ + if (itemToAdd != (char *) NULL && buf != (char *) NULL) + { + if ((strlen (buf) + strlen (itemToAdd)) <= buflen) + strcat (buf, itemToAdd); + else + strncat (buf, itemToAdd, (buflen - strlen (buf))); + } + + return; +} /* strcat_to_buf */ + +/* VARARGS */ +void +#ifdef ANSI_PROTOTYPES +strcat_to_buf_with_fmt ( + char *buf, + int bufLen, + char *format,...) +#else +strcat_to_buf_with_fmt (va_alist) + va_dcl +#endif +{ + char *linebuffer; + struct cleanup *old_cleanups; + va_list args; +#ifdef ANSI_PROTOTYPES + va_start (args, format); +#else + char *buf; + int bufLen; + char *format; + + va_start (args); + buf = va_arg (args, char *); + bufLen = va_arg (args, int); + format = va_arg (args, char *); +#endif + vasprintf (&linebuffer, format, args); + old_cleanups = make_cleanup (free, linebuffer); + strcat_to_buf (buf, bufLen, linebuffer); + do_cleanups (old_cleanups); + va_end (args); +} + + + + + +/*********************** +** Static Functions +************************/ + + +/* +** _tui_vDo(). +** General purpose function to execute a tui function. Transitions +** between curses and the are handled here. This function is called +** by non-tui gdb functions. +** +** Errors are caught here. +** If there is no error, the value returned by 'func' is returned. +** If there is an error, then zero is returned. +** +** Must not be called with immediate_quit in effect (bad things might +** happen, say we got a signal in the middle of a memcpy to quit_return). +** This is an OK restriction; with very few exceptions immediate_quit can +** be replaced by judicious use of QUIT. +*/ +static Opaque +#ifdef __STDC__ +_tui_vDo ( + TuiOpaqueFuncPtr func, + va_list args) +#else +_tui_vDo (func, args) + TuiOpaqueFuncPtr func; + va_list args; +#endif +{ + extern int terminal_is_ours; + + Opaque ret = (Opaque) NULL; + + /* It is an error to be tuiDo'ing if we + * don't own the terminal. + */ + if (!terminal_is_ours) + return ret; + + if (tui_version) + { + /* If doing command window the "XDB way" (command window + * is unmanaged by curses... + */ + /* Set up terminal for TUI */ + tuiTermSetup (1); + + ret = va_catch_errors (func, args); + + /* Set up terminal for command window */ + tuiTermUnsetup (1, cmdWin->detail.commandInfo.curch); + } + + return ret; +} /* _tui_vDo */ + + +static void +#ifdef __STDC__ +_toggle_command ( + char *arg, + int fromTTY) +#else +_toggle_command (arg, fromTTY) + char *arg; + int fromTTY; +#endif +{ + printf_filtered ("Specify feature to toggle.\n%s\n", + (tui_version) ? TUI_TOGGLE_USAGE : TOGGLE_USAGE); +/* + tuiDo((TuiOpaqueFuncPtr)_Toggle_command, arg, fromTTY); +*/ +} + +/* +** _tui_vToggle_command(). +*/ +static void +#ifdef __STDC__ +_tui_vToggle_command ( + va_list args) +#else +_tui_vToggle_command (args) + va_list args; +#endif +{ + char *arg; + int fromTTY; + + arg = va_arg (args, char *); + + if (arg == (char *) NULL) + printf_filtered (TOGGLE_USAGE); + else + { + char *ptr = (char *) tuiStrDup (arg); + int i; + + for (i = 0; (ptr[i]); i++) + ptr[i] = toupper (arg[i]); + + if (subsetCompare (ptr, TUI_FLOAT_REGS_NAME)) + tuiToggleFloatRegs (); +/* else if (subsetCompare(ptr, "ANOTHER TOGGLE OPTION")) + ... +*/ + else + printf_filtered (TOGGLE_USAGE); + tuiFree (ptr); + } + + return; +} /* _tuiToggle_command */ + + +static void +#ifdef __STDC__ +_tuiReset (void) +#else +_tuiReset () +#endif +{ + struct termio mode; + + /* + ** reset the teletype mode bits to a sensible state. + ** Copied tset.c + */ +#if ! defined (USG) && defined (TIOCGETC) + struct tchars tbuf; +#endif /* !USG && TIOCGETC */ +#ifdef UCB_NTTY + struct ltchars ltc; + + if (ldisc == NTTYDISC) + { + ioctl (FILEDES, TIOCGLTC, <c); + ltc.t_suspc = CHK (ltc.t_suspc, CTRL ('Z')); + ltc.t_dsuspc = CHK (ltc.t_dsuspc, CTRL ('Y')); + ltc.t_rprntc = CHK (ltc.t_rprntc, CTRL ('R')); + ltc.t_flushc = CHK (ltc.t_flushc, CTRL ('O')); + ltc.t_werasc = CHK (ltc.t_werasc, CTRL ('W')); + ltc.t_lnextc = CHK (ltc.t_lnextc, CTRL ('V')); + ioctl (FILEDES, TIOCSLTC, <c); + } +#endif /* UCB_NTTY */ +#ifndef USG +#ifdef TIOCGETC + ioctl (FILEDES, TIOCGETC, &tbuf); + tbuf.t_intrc = CHK (tbuf.t_intrc, CTRL ('?')); + tbuf.t_quitc = CHK (tbuf.t_quitc, CTRL ('\\')); + tbuf.t_startc = CHK (tbuf.t_startc, CTRL ('Q')); + tbuf.t_stopc = CHK (tbuf.t_stopc, CTRL ('S')); + tbuf.t_eofc = CHK (tbuf.t_eofc, CTRL ('D')); + /* brkc is left alone */ + ioctl (FILEDES, TIOCSETC, &tbuf); +#endif /* TIOCGETC */ + mode.sg_flags &= ~(RAW +#ifdef CBREAK + | CBREAK +#endif /* CBREAK */ + | VTDELAY | ALLDELAY); + mode.sg_flags |= XTABS | ECHO | CRMOD | ANYP; +#else /*USG*/ + ioctl (FILEDES, TCGETA, &mode); + mode.c_cc[VINTR] = CHK (mode.c_cc[VINTR], CTRL ('?')); + mode.c_cc[VQUIT] = CHK (mode.c_cc[VQUIT], CTRL ('\\')); + mode.c_cc[VEOF] = CHK (mode.c_cc[VEOF], CTRL ('D')); + + mode.c_iflag &= ~(IGNBRK | PARMRK | INPCK | INLCR | IGNCR | IUCLC | IXOFF); + mode.c_iflag |= (BRKINT | ISTRIP | ICRNL | IXON); + mode.c_oflag &= ~(OLCUC | OCRNL | ONOCR | ONLRET | OFILL | OFDEL | + NLDLY | CRDLY | TABDLY | BSDLY | VTDLY | FFDLY); + mode.c_oflag |= (OPOST | ONLCR); + mode.c_cflag &= ~(CSIZE | PARODD | CLOCAL); +#ifndef hp9000s800 + mode.c_cflag |= (CS8 | CREAD); +#else /*hp9000s800*/ + mode.c_cflag |= (CS8 | CSTOPB | CREAD); +#endif /* hp9000s800 */ + mode.c_lflag &= ~(XCASE | ECHONL | NOFLSH); + mode.c_lflag |= (ISIG | ICANON | ECHO | ECHOK); + ioctl (FILEDES, TCSETAW, &mode); +#endif /* USG */ + + return; +} /* _tuiReset */ |
