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darling-gdb/gdb/tui/tui.c
Kevin Buettner b8c9b27d1e Replace free() with xfree().
2000-12-15 01:01:51 +00:00

829 lines
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/*
** tui.c
** General functions for the WDB TUI
*/
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <malloc.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 (void);
static void _toggle_command (char *, int);
static void _tui_vToggle_command (va_list);
static Opaque _tui_vDo (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 (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;
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)
{
xfree (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 (void)
{
#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 (xfree, 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, &ltc);
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, &ltc);
}
#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 */
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